A multi-phase centrifugal supercharging system (10) configured for supplying compressed induction fluid to an engine (E) is disclosed. The air induction system (10) broadly includes a drive assembly (12) powered by the engine (E), a supercharging assembly (14) driven by the drive assembly (12) to co
A multi-phase centrifugal supercharging system (10) configured for supplying compressed induction fluid to an engine (E) is disclosed. The air induction system (10) broadly includes a drive assembly (12) powered by the engine (E), a supercharging assembly (14) driven by the drive assembly (12) to compress induction fluid, and an induction fluid flow control assembly (16) in communication with the supercharging assembly (14) to control operation of the supercharging assembly (14) and cooperating therewith to deliver the compressed induction fluid to the intake manifold (IM) of the engine (E). The supercharging assembly (14) includes a pair of centrifugal superchargers (28 and 30) that are phased by the control assembly (16) between multiple operating phases, including a series phase (172) and a parallel phase (176). An alternative air system (306) is also disclosed, in use with a pneumatic conveyor (300), that phases between normal series operation and parallel, clog-displacing operation.
대표청구항▼
The invention claimed is: 1. A method of supplying compressed air to a system, said method comprising the steps of: (a) driving a first compressor by a power source shaft to compress air; (b) driving a second compressor by the power source shaft to compress air; (c) operating the compressors at lea
The invention claimed is: 1. A method of supplying compressed air to a system, said method comprising the steps of: (a) driving a first compressor by a power source shaft to compress air; (b) driving a second compressor by the power source shaft to compress air; (c) operating the compressors at least partially in series so that at least some air that is compressed by the first compressor is further compressed by the second compressor and then supplied to the system; and (d) operating the compressors at least partially in parallel so that at least a portion of air is compressed by the first compressor and at least another portion of air is compressed by the second compressor and the at least a portion and at least another portion of compressed air are supplied to the system without passing through the other compressor, said driving steps of (a) and (b) each being performed so that both compressors are continuously operated by the power source shaft at a substantially constant relative speed to the power source shaft speed during the operating steps of (c) and (d). 2. The method as claimed in claim 1, step (d) being performed after step (c) so that operation of the compressors phases from at least partially in series to at least partially in parallel in response to a predetermined condition, said predetermined condition comprising a decrease in pressure in the system downstream of the first and second compressors. 3. The method as claimed in claim 1, step (d) including the step of switching operation of the compressors to substantially fully parallel in response to a predetermined condition so that at least a portion of air is compressed by the first compressor and at least another portion of air is compressed by the second compressor and the at least a portion and at least another portion of compressed air are supplied to the system without passing through the other compressor wherein said at least a portion and said at least another portion of compressed air comprise substantially all compressed air supplied to the system. 4. The method as claimed in claim 1, step (d) including the step of switching operation of the compressors to substantially fully parallel in response to a predetermined condition so that at least a portion of air is compressed by the first compressors and at least another portion of air is compressed by the second compressor and the at least a portion and at least another portion of compressed air are supplied to the system without passing through the other compressor wherein said at least a portion and said at least another portion of compressed air comprise substantially all compressed air supplied to the system, said predetermined condition being a decrease in pressure in the system downstream of the first and second compressors. 5. The method as claimed in claim 1, steps (a) and (b) including the common step of intermeshing a common gear between the compressors. 6. The method as claimed in claim 1, steps (c) and (d) each including the step of operating both compressors so that each compressor compresses at least some air that is supplied to the system whenever the power source is operating. 7. The method as claimed in claim 6, steps (c) and (d) each further including the step of delivering substantially all of the air compressed by the compressors to the system. 8. The method as claimed in claim 1, step (c) including the step of operating the compressors substantially fully in series so that substantially all air that is compressed by the first compressor is further compressed by the second compressor and then supplied to the system. 9. The method as claimed in claim 1; and (e) housing both compressors substantially within a case. 10. The method as claimed in claim 1; and (e) intercommunicating the first and second compressors and the system, step (e) including the steps of fluidly communicating the first and second compressors with a serial passageway and disposing a first valve along the serial passageway for controlling the flow of compressed air there through. 11. The method as claimed in claim 10, step (d) including the step of shifting the first valve into a closed position wherein compressed air is prevented from flowing through said serial passageway. 12. The method as claimed in claim 1, (e) intercommunicating the first and second compressors and the system, step (e) including the steps of fluidly communicating the first and second compressors with a serial passageway and disposing a first valve along the serial passageway for controlling the flow of compressed air there through, step (c) including the step of shifting the first valve into an open position wherein compressed air is permitted to flow through said serial passageway. 13. A method of supplying compressed air to a system, said method comprising the steps of: (a) driving a first compressor by a power source to compress air; (b) driving a second compressor by the power source to compress air; (c) operating the compressors at least partially in series so that at least some air that is compressed by the first compressor is further compressed by the second compressor and then supplied to the system; and (d) operating the compressors at least partially in parallel so that at least a portion of air is compressed by the first compressor and at least another portion of air is compressed by the second compressor and the at least a portion and at least another portion of compressed air are supplied to the system without passing through the other compressor, steps (a) and (b) each including the step of drivingly connecting the compressors to the power source so that each of the compressors operates continuously with operation of the power source, steps (a) and (b) including the common step of intermeshing a common gear between the compressors, steps (a) and (b) further including the common steps of entraining an endless element around at least a portion of the power source and driving the common gear at least in part with the endless element. 14. A method of supplying compressed air to a system, said method comprising the steps of: (a) driving a first compressor off of a power source to compress air; (b) driving a second compressor off of the power source to compress air; (c) operating the compressors at least partially in series so that at least some air that is compressed by the first compressor is further compressed by the second compressor and then supplied to the system; (d) operating the compressors at least partially in parallel so that at least a portion of air is compressed by the first compressor and at least another portion of air is compressed by the second compressor and the at least a portion and at least another portion of compressed air are supplied to the system without passing through the other compressor; and (e) intercommunicating the first and second compressors and the system, step (e) including the steps of fluidly communicating the first and second compressors with a serial passageway and disposing a first valve along the serial passageway for controlling the flow of compressed air there through, step (e) including the steps of fluidly communicating the first compressor and the system with an additional passageway and disposing a second valve along the additional passageway for controlling the flow of compressed air there through. 15. The method as claimed in claim 14, step (c) including the step of shifting the second valve into a closed position wherein compressed air is prevented from flowing through said additional passageway. 16. The method as claimed in claim 14, step (d) including the step of shifting the second valve into an open position wherein compressed air is permitted to flow through said additional passageway. 17. The method as claimed in claim 14, step (e) including the steps of fluidly communicating the second compressor and the atmosphere with a parallel passageway and disposing a third valve along the parallel passageway for controlling the flow of air there through. 18. The method as claimed in claim 17, step (e) including the step of fluidly communicating the atmosphere, the first compressor, and the parallel passageway with an inlet passageway and disposing a fourth valve along said inlet passageway for controlling the flow of air there through. 19. The method as claimed in claim 18; and (f) shifting the fourth valve into a partially closed position wherein at least some air is prevented from flowing through said inlet passageway. 20. The method as claimed in claim 17, step (c) including the step of shifting the third valve into a closed position wherein air is prevented from flowing through said parallel passageway. 21. The method as claimed in claim 20, step (d) including the step of shifting the third valve into an open position wherein air is permitted to flow through the parallel passageway. 22. A multiphase compressing air assembly for supplying compressed air to a system, said assembly comprising: a first compressor drivingly connectable to a power source shaft and operable to compress air for the system, said first compressor including a first inlet, a spaced first outlet, and a first rotatable impeller fluidly between the first inlet and first outlet to compress air; a second compressor drivingly connectable to the power source shaft and operable to compress air for the system, said second compressor including a second inlet, a spaced second outlet, and a second rotatable impeller fluidly between the second inlet and second outlet to compress air; and a fluid flow control assembly fluidly intercommunicating the compressors so that the compressors cooperatively provide compressed air to the system in a number of operating phases, including a first phase in which at least some compressed air from the first outlet is supplied to the second inlet and a second phase in which at least some compressed air from the first and second outlets is supplied to the system without passing through the other compressor, said first and second compressors being drivingly connectable to the power source shaft wherein both of the impellers are rotated continuously by the power source shaft and at a substantially constant relative speed to the power source shaft speed during the operating phases of the compressors. 23. The assembly as claimed in claim 22; and a drive assembly operable to drivingly connect the compressors to the power source shaft. 24. The assembly as claimed in claim 23, said first and second impellers each being operable to compress air for the system when rotated, said first and second compressors including a transmission drivingly connecting the impellers to the drive assembly, said transmission cooperating with the drive assembly to maintain rotation of the impellers at the substantially constant speed relative to operation of the power source. 25. The assembly as claimed in claim 24, said transmission including a plurality of intermeshing gears with at least one of said gears being common to both compressors. 26. The assembly as claimed in claim 22, said fluid flow control assembly fluidly intercommunicating the compressors so that in all operating phases both compressors compress at least some air for the system whenever the power source is operating. 27. The assembly as claimed in claim 26, said fluid flow control assembly being operable to fluidly intercommunicate the compressors with the system so that in all operating phases substantially all of the air compressed by each of the compressors is delivered to the system. 28. The assembly as claimed in claim 22, said first phase including a series phase in which substantially all compressed air from the first outlet is supplied to the second inlet. 29. The assembly as claimed in claim 28, said second phase including a parallel phase in which substantially all compressed air from the first and second outlets is supplied directly to the system. 30. The assembly as claimed in claim 29, said fluid flow control assembly being configured to switch operation of the compressors from the series phase to the parallel phase in response to a predetermined condition. 31. The assembly as claimed in claim 22, said first phase including a series phase in which substantially all compressed air from the first outlet is supplied to the second inlet, said second phase including a parallel phase in which substantially all compressed air from the first and second outlets is supplied directly to the system, said fluid flow control assembly being configured to switch operation of the compressors from the series phase to the parallel phase in response to a predetermined condition, said predetermined condition being a decrease in pressure in the system downstream of the first and second compressors. 32. The assembly as claimed in claim 31, said fluid flow control assembly being configured to switch operation of the compressors from the parallel phase to the series phase in response to a second predetermined condition. 33. The assembly as claimed in claim 32, said predetermined condition being an increase in pressure in the system downstream of the first and second compressors. 34. The assembly as claimed in claim 22; and a case presenting a compression chamber and a transmission chamber, said first and second compressors being at least partially housed within said compression chamber. 35. The assembly as claimed in claim 22, said fluid flow control assembly including a passageway fluidly communicating said first outlet and said second inlet, said fluid flow control assembly further including a first valve disposed along said passageway for controlling the flow of compressed air there through. 36. The assembly as claimed in claim 22, said fluid flow control assembly including a passageway fluidly communicating said first outlet and said second inlet, said fluid flow control assembly further including a first valve disposed along said passageway for controlling the flow of compressed air there through, said first valve shiftable between an open position wherein compressed air is permitted to flow through said passageway and a closed position wherein compressed air is prevented from flowing through said passageway. 37. A multiphase compressing air assembly for supplying compressed air to a system, said assembly comprising: a first compressor drivingly connectable to a power source and operable to compress air for the system, said first compressor including a first inlet, a spaced first outlet, and a first impeller fluidly between the first inlet and first outlet to compress air; a second compressor drivingly connectable to the power source and operable to compress air for the system, said second compressor including a second inlet, a spaced second outlet, and a second impeller fluidly between the second inlet and second outlet to compress air; a fluid flow control assembly fluidly intercommunicating the compressors so that the compressors cooperatively provide compressed air to the system in a number of operating phases, including a first phase in which at least some compressed air from the first outlet is supplied to the second inlet and a second phase in which at least some compressed air from the first and second outlets is supplied to the system without passing through the other compressor; and a drive assembly operable to drivingly connect the compressors to the power source so that each of the compressors operates continuously with operation of the power source, said first and second impellers being rotatable, each being operable to compress air for the system when rotated, said first and second compressors including a transmission drivingly connecting the impellers to the drive assembly, said transmission cooperating with the drive assembly to maintain rotation of the impellers at a substantially constant ratio relative to operation of the power source, said transmission including a plurality of intermeshing gears with at least one of said gears being common to both compressors, said transmission including a common rotatable transmission shaft coupled to said common gear, said drive assembly including an endless element entraining at least a portion of said common shaft and being operable to entrain at least a portion of the power source. 38. A multiphase compressing air assembly for supplying compressed air to a system, said assembly comprising: a first compressor drivingly connectable to a power source and operable to compress air for the system, said first compressor including a first inlet, a spaced first outlet, and a first impeller fluidly between the first inlet and first outlet to compress air; a second compressor drivingly connectable to the power source and operable to compress air for the system, said second compressor including a second inlet, a spaced second outlet, and a second impeller fluidly between the second inlet and second outlet to compress air; and a fluid flow control assembly fluidly intercommunicating the compressors so that the compressors cooperatively provide compressed air to the system in a number of operating phases, including a first phase in which at least some compressed air from the first outlet is supplied to the second inlet and a second phase in which at least some compressed air from the first and second outlets is supplied to the system without passing through the other compressor, said fluid flow control assembly including a passageway fluidly communicating said first outlet and said second inlet, said fluid flow control assembly further including a first valve disposed along said passageway for controlling the flow of compressed air there through, said fluid flow control assembly including an additional passageway in fluid communication with said first outlet and operable to be in fluid communication with the system, said fluid flow control assembly further including a second valve disposed along said additional passageway downstream of said first-mentioned passageway for controlling the flow of compressed air through said additional passageway. 39. The assembly as claimed in claim 38, said second valve shiftable between an open position wherein compressed air is permitted to flow through said additional passageway and a closed position wherein compressed air is prevented from flowing through said additional passageway. 40. The assembly as claimed in claim 38, said fluid flow control assembly including a second additional passageway in fluid communication with said second inlet, said fluid flow control assembly further including a third valve disposed along said second additional passageway upstream of said first-mentioned passageway for controlling the flow of air through said second additional passageway. 41. The assembly as claimed in claim 40, said third valve shiftable between an open position wherein air is permitted to flow through said second additional passageway and a closed position wherein air is prevented from flowing through said second additional passageway. 42. The assembly as claimed in claim 40; and a case presenting a compression chamber and a transmission chamber, said first and second compressors and said fluid flow control assembly being at least partially housed within said compression chamber, said compression chamber presenting a case inlet in fluid communication with the atmosphere. 43. The assembly as claimed in claim 42, said fluid flow control assembly including a third additional passageway fluidly communicating the case inlet with said first inlet and fluidly communicating the case inlet with said second additional passageway, said fluid flow control assembly further including a fourth valve disposed along said third additional passageway for controlling the flow of air there through. 44. The assembly as claimed in claim 43, said fourth valve shiftable between an open position wherein air is permitted to flow through said third additional passageway and a partially closed position wherein at least some air is prevented from flowing through said third additional passageway. 45. In a pneumatic conveyor including tubing and a power source shaft, an improved centrifugal air compressing system comprising: a first compressor drivingly connected to the power source shaft for compressing air for the tubing, said first compressor including a first inlet, a spaced first outlet, and a first rotatable impeller fluidly between the first inlet and first outlet to compress air; a second compressor drivingly connected to the power source shaft for compressing air for the tubing, said second compressor including a second inlet, a spaced second outlet, and a second rotatable impeller fluidly between the second inlet and second outlet to compress air; and a fluid flow control assembly fluidly intercommunicating the compressors so that the compressors cooperatively provide compressed air to the tubing in a number of operating phases, including a first phase in which at least some compressed air from the first outlet is supplied to the second inlet and a second phase in which at least some compressed air from the first and second outlets is supplied to the tubing without passing through the other compressor, said first and second compressors being drivingly connected to the power source shaft wherein both of the impellers are rotated continuously by the power source shaft and at a substantially constant relative speed to the power source shaft speed during the operating phases of the compressors. 46. In a pneumatic conveyor as claimed in claim 45; and a drive assembly drivingly connecting the compressors to the power source. 47. In a pneumatic conveyor as claimed in claim 46, said first and second impellers being rotatable to compress air for the tubing when rotated, said first and second compressors including a transmission drivingly connecting the impellers to the drive assembly, said transmission cooperating with the drive assembly to maintain rotation of the impellers at the substantially constant speed relative to the operation of the power source. 48. In a pneumatic conveyor as claimed in claim 47, said transmission including a plurality of intermeshing gears with at least one of said gears being common to both compressors. 49. In a pneumatic conveyor as claimed in claim 45, said fluid flow control assembly fluidly intercommunicating the compressors so that in all operating phases both compressors compress at least some air for the tubing whenever the power source is operating. 50. In a pneumatic conveyor as claimed in claim 49, said fluid flow control assembly being operable to fluidly intercommunicate the compressors with the tubing so that in all operating phases substantially all of the air compressed by each of the compressors is delivered to the tubing. 51. In a pneumatic conveyor as claimed in claim 45, said first phase including a series phase in which substantially all compressed air from the first outlet is supplied to the second inlet. 52. In a pneumatic conveyor as claimed in claim 51, said second phase including a parallel phase in which substantially all compressed air from the first and second outlets is supplied directly to the tubing. 53. In a pneumatic conveyor as claimed in claim 52, said fluid flow control assembly being configured to switch operation of the compressors from the series phase to the parallel phase in response to a predetermined condition. 54. In a pneumatic conveyor as claimed in claim 45, said first phase including a series phase in which substantially all compressed air from the first outlet is supplied to the second inlet, said second phase including a parallel phase in which substantially all compressed air from the first and second outlets is supplied directly to the tubing, said fluid flow control assembly being configured to switch operation of the compressors from the series phase to the parallel phase in response to a predetermined condition, said predetermined condition being a decrease in pressure in the tubing downstream of the first and second compressors. 55. In a pneumatic conveyor as claimed in claim 54, said fluid flow control assembly being configured to switch operation of the compressors from the parallel phase to the series phase in response to a second predetermined condition. 56. In a pneumatic conveyor as claimed in claim 55, said predetermined condition being an increase in pressure in the tubing downstream of the first and second compressors. 57. In a pneumatic conveyor as claimed in claim 45; and a case presenting a compression chamber and a transmission chamber, said first and second compressors being at least partially housed within said compression chamber. 58. In a pneumatic conveyor as claimed in claim 45, said fluid flow control assembly including a passageway fluidly communicating said first outlet and said second inlet, said fluid flow control assembly further including a first valve disposed along said passageway for controlling the flow of compressed air there through. 59. In a pneumatic conveyor as claimed in claim 45, said fluid flow control assembly including a passageway fluidly communicating said first outlet and said second inlet, said fluid flow control assembly further including a first valve disposed along said passageway for controlling the flow of compressed air there through, said first valve shiftable between an open position wherein compressed air is permitted to flow through said passageway and a closed position wherein compressed air is prevented from flowing through said passageway. 60. In a pneumatic conveyor including tubing and a power source, an improved centrifugal air compressing system comprising: a first compressor drivingly connected to the power source for compressing air for the tubing, said first compressor including a first inlet, a spaced first outlet, and a first impeller fluidly between the first inlet and first outlet to compress air; a second compressor drivingly connected to the power source for compressing air for the tubing, said second compressor including a second inlet, a spaced second outlet, and a second impeller fluidly between the second inlet and second outlet to compress air; a fluid flow control assembly fluidly intercommunicating the compressors so that the compressors cooperatively provide compressed air to the tubing in a number of operating phases, including a first phase in which at least some compressed air from the first outlet is supplied to the second inlet and a second phase in which at least some compressed air from the first and second outlets is supplied to the tubing without passing through the other compressor; and a drive assembly drivingly connecting the compressors to the power source so that each of the compressors operates continuously with operation of the power source, said first and second impellers being rotatable to compress air for the tubing when rotated, said first and second compressors including a transmission drivingly connecting the impellers to the drive assembly, said transmission cooperating with the drive assembly to maintain rotation of the impellers at a substantially constant ratio relative to the operation of the power source, said transmission including a plurality of intermeshing gears with at least one of said gears being common to both compressors, said transmission including a common rotatable transmission shaft coupled to said common gear, said drive assembly including an endless element entraining at least a portion of said common shaft and at least a portion of the power source. 61. In a pneumatic conveyor including tubing and a power source, an improved centrifugal air compressing system comprising: a first compressor drivingly connected to the power source for compressing air for the tubing, said first compressor including a first inlet, a spaced first outlet, and a first impeller fluidly between the first inlet and first outlet to compress air; a second compressor drivingly connected to the power source for compressing air for the tubing, said second compressor including a second inlet, a spaced second outlet, and a second impeller fluidly between the second inlet and second outlet to compress air; and a fluid flow control assembly fluidly intercommunicating the compressors so that the compressors cooperatively provide compressed air to the tubing in a number of operating phases, including a first phase in which at least some compressed air from the first outlet is supplied to the second inlet and a second phase in which at least some compressed air from the first and second outlets is supplied to the tubing without passing through the other compressor, said fluid flow control assembly including a passageway fluidly communicating said first outlet and said second inlet, said fluid flow control assembly further including a first valve disposed along said passageway for controlling the flow of compressed air there through, said fluid flow control assembly including an additional passageway in fluid communication with said first outlet and the tubing, said fluid flow control assembly further including a second valve disposed along said additional passageway downstream of said first-mentioned passageway for controlling the flow of compressed air through said additional passageway. 62. In a pneumatic conveyor as claimed in claim 61, said second valve shiftable between an open position wherein compressed air is permitted to flow through said additional passageway and a closed position wherein compressed air is prevented from flowing through said additional passageway. 63. In a pneumatic conveyor as claimed in claim 61, said fluid flow control assembly including a second additional passageway in fluid communication with said second inlet, said fluid flow control assembly further including a third valve disposed along said second additional passageway upstream of said first-mentioned passageway for controlling the flow of air through said second additional passageway. 64. In a pneumatic conveyor as claimed in claim 63, said third valve shiftable between an open position wherein air is permitted to flow through said second additional passageway and a closed position wherein air is prevented from flowing through said second additional passageway. 65. In a pneumatic conveyor as claimed in claim 63; and a case presenting a compression chamber and a transmission chamber, said first and second compressors and said fluid flow control assembly being at least partially housed within said compression chamber, said compression chamber presenting a case inlet in fluid communication with the atmosphere. 66. In a pneumatic conveyor as claimed in claim 65, said fluid flow control assembly including a third additional passageway fluidly communicating the case inlet with said first inlet and fluidly communicating the case inlet with said second additional passageway, said fluid flow control assembly further including a fourth valve disposed along said third additional passageway for controlling the flow of air there through. 67. In a pneumatic conveyor as claimed in claim 66, said fourth valve shiftable between an open position wherein air is permitted to flow through said third additional passageway and a partially closed position wherein at least some air is prevented from flowing through said third additional passageway.
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이 특허에 인용된 특허 (29)
Johnson Kenneth A. (15236 Tacoma St. Detroit MI 48205), Air diverter for supercharger.
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