This invention relates to a twin-plate, rotary compressor and refers particularly, though not exclusively, to a twin-plate, rotary compressor comprising two conical plates for relative rolling motion within a casing, there being a line contact between the two conical plates; the line contact being m
This invention relates to a twin-plate, rotary compressor and refers particularly, though not exclusively, to a twin-plate, rotary compressor comprising two conical plates for relative rolling motion within a casing, there being a line contact between the two conical plates; the line contact being maintainable during operation of the compressor; a central seal for sealingly engaging correspondingly-shaped recesses of the two conical plates; and an outer seal in mating relationship with the two conical plates; wherein the central seal is mounted on a drive shaft, the drive shaft being operatively connected to an output shaft of a motor; wherein the drive shaft, the central seal and the outer seal are for rotation about a third axis of rotation, the third axis of rotation being coincident with a longitudinal axis of the drive shaft and a center of the central seal.
대표청구항▼
The invention claimed is: 1. A rotary, twin-plate compressor comprising: (a) two conical plates for plates for relative rolling motion within a casing, there being a line contact between the two conical plates; (b) the line contact being maintainable during operation of the compressor; (c) a centra
The invention claimed is: 1. A rotary, twin-plate compressor comprising: (a) two conical plates for plates for relative rolling motion within a casing, there being a line contact between the two conical plates; (b) the line contact being maintainable during operation of the compressor; (c) a central seat for sealingly engaging correspondingly-shaped recesses of the two conical plates; and (d) an outer seal in mating relationship with the two conical plates; wherein the central seal is mounted on a drive shaft, the drive shaft being operatively connected to an output shaft of a motor; wherein the drive shaft, the central seal and the outer seal are for rotation about a third axis of rotation, the third axis of rotation being coincident with a longitudinal axis of the drive shaft and a center of the central seal. 2. The compressor as claimed in claim 1, wherein the line contact is able to be maintained throughout the operational cycle of the compressor. 3. The compressor as claimed in claim 1, wherein the line contact is maintained at a relative to the casing that is selected from the group consisting of: fixed, and rotating. 4. The compressor as claimed in claim 1, wherein the central seal is substantially spherical. 5. The compressor as claimed in claim 1 further comprising an inlet port in the central seal, the central seal having at least one fluid passageway to operatively connect the inlet port to a working chamber. 6. The compressor as claimed in claim 5, wherein the outer seal comprises an outlet port on an outer surface of the outer seal, the outlet port being an opening through the outer seal. 7. The compressor as claimed in claim 1, wherein the outer seal comprises an inner surface shaped as a segment of a sphere, each of the two conical plates having an outer surface of a shape to mate with the inner surface. 8. The compressor as claimed in claim 1, further comprising a fluid block in sealing engagement with the two conical plates and being for rotation in therewith. 9. The compressor as claimed in claim 8, wherein the fluid block is connected to the central seal and the outer seal. 10. The compressor as claimed in claim 8, wherein a working chamber is an enclosed space defined by the central seal, the two conical plates, the fluid block and the outer seal. 11. The compressor as claimed in claim 8, wherein the drive shaft, the fluid block, the central seal and the outer seal are for rotation about the third axis of rotation. 12. The compressor as claimed in claim 8, wherein the central seal, the outer seal and the fluid block comprise a drive assembly. 13. The compressor as claimed in claim 1, wherein the two conical plates comprise a first plate having a first axis of rotation and a second plate having a second axis of rotation, the first axis of rotation being offset at an offset angle relative to the second axis of rotation. 14. The compressor as claimed in claim 13, wherein the offset angle is selected from the group consisting of: in the range 1 to 90 degrees, less than 45 degrees, less than 20 degrees, and about 7.5 degrees. 15. The compressor as claimed in claim 13, wherein the two conical plates each comprises a conical angle, the conical angles determining the offset angle. 16. The compressor as claimed in claim 1, wherein the casing is hermetically sealed and comprises a hollow main body, and an end plate at each end of the hollow main body. 17. The compressor as claimed in claim 16 further comprising a discharge outlet in one of the end plates, the hollow main body having an interior at discharge pressure. 18. The compressor as claimed in claim 1, wherein each of the two conical plates is mounted on a bush, each bush being mounted on a bush support. 19. The compressor as claimed in claim 18, further comprising lubricant passageways in the bush supports and the two conical plates. 20. A motor comprising the compressor as claimed in claim 1. 21. A rotary twin-plate compressor comprising: (a) a first conical plate having a first axis of rotation, and (b) a second conical plate having a second axis of rotation; (c) the first axis of rotation being offset at an offset angle relative to the second axis of rotation; (d) a central seal for sealingly engaging correspondingly-shaped recesses of the first and second conical plates; (e) an outer seal in mating relationship with the first and second conical plates; wherein the central seal is mounted on a drive shaft, the drive shaft being operatively connected to an output shaft of a motor; wherein the drive shaft, the central seal and the outer seal are for rotation about a third axis of rotation, the third axis of rotation being coincident with a longitudinal axis of the drive shaft and a center of the central seal. 22. A compressor as claimed in claim 21, wherein the first conical plate and the second conical plate are for rolling relative to each other within a casing, there being a line contact between the two conical plates; and the line contact being maintained at a position relative to the casing that is selected from the group consisting of: fixed, and rotating. 23. The compressor as claimed in claim 22, wherein the first plate is stationary relative to the casing, and the second plate has motion relative to the casing, the line contact rotating relative to the casing. 24. The compressor as claimed in claim 21, wherein the central seal is substantially spherical. 25. The compressor as claimed in claim 21, further comprising an inlet port in the central seal, the central seal having at least one fluid passageway to operatively connect the inlet port to a working chamber. 26. The compressor as claimed in claim 21, wherein the outer seal comprises an inner surface shaped as a segment of a sphere, each of the two conical plates having an outer surface of a shape to mate with the inner surface. 27. The compressor as claimed in claim 21, wherein the outer seal comprises an outlet port on an outer surface of the outer seal, the outlet port being an opening through the outer seal. 28. The compressor as claimed in claim 21, further comprising a fluid block in sealing engagement with the first and second conical plates and being for rotation in therewith. 29. The compressor as claimed in claim 28, wherein the fluid block is connected to the outer seal and the central seal. 30. The compressor as claimed in claim 28, wherein the working chamber is an enclosed space defined by the central seal, the two conical plates, the fluid block and the outer seal. 31. The compressor as claimed in claim 28, wherein the drive shaft, central seal, the fluid block and the outer seal are for rotation about the third axis of rotation. 32. The compressor as claimed in claim 28, wherein the central seal, the outer seal and the fluid block comprise a driver assembly. 33. The compressor as claimed in claim 21, wherein the offset angle is selected from the group consisting of: in the range 1 to 90 degrees, less than 45 degrees, less than 20 degrees, and about 7.5 degrees. 34. The compressor as claimed in claim 21, wherein the two conical plates each comprises a conical angle, the conical angles determining the offset angle. 35. The compressor as claimed in claim 21, wherein the casing is hermetically sealed and comprises a hollow main body, and an end plate at each end of the hollow main body. 36. The compressor as claimed in claim 35, further comprising a discharge outlet in one of the end plates, the hollow main body having an interior at discharge pressure. 37. The compressor as claimed in claim 21, wherein each of the first and second conical plates is mounted on a bush, each bush being mounted on a bush support. 38. The compressor as claimed in claim 37, further comprising lubricant passageways in the bush supports and the first and second conical plates. 39. The compressor as claimed in claim 21, further comprising a third plate located between the first and second plates, the third plate comprising two surfaces, one of which forms a first line contact with the first plate and the other of which forms a second line contact with the second plate; the first and second plates being stationary and the third plate being for a rolling motion relative to both the first and second plates. 40. The compressor as claimed in claim 39, wherein both of the two surfaces of the third plate are concave and conical; the conical surfaces of the third plate having a conical angle different to that of the first plate and that of the second plate. 41. The compressor as claimed in claim 39, wherein the outer seal moves in rolling motion with the third plate. 42. A motor comprising the compressor as claimed in claim 21.
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이 특허에 인용된 특허 (3)
Kgi Ren (Stfa CHX), Fluid cell arrangement for compressed air motors.
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