초록 ▼

A compressor assembly includes a planetary gear train located between an input shaft from the power unit and a drive shaft of the compressor. The planetary gear train is switchable between a high speed and a low speed condition. In the high speed condition, power is provided to the planetary gears,

A compressor assembly includes a planetary gear train located between an input shaft from the power unit and a drive shaft of the compressor. The planetary gear train is switchable between a high speed and a low speed condition. In the high speed condition, power is provided to the planetary gears, the ring gear is locked and output to the drive shaft is through the sun gear. In the low speed condition, a one-way clutch between the input shaft and the output shaft provides a one-to-one driving ratio.

대표청구항 ▼

What is claimed is: 1. A two speed compressor assembly comprising: a compressor having a housing; a drive shaft rotatably supported with respect to said housing and engaging said compressor; an input shaft rotatably supported with respect to said housing for driving said drive shaft in a high speed

What is claimed is: 1. A two speed compressor assembly comprising: a compressor having a housing; a drive shaft rotatably supported with respect to said housing and engaging said compressor; an input shaft rotatably supported with respect to said housing for driving said drive shaft in a high speed condition and a low speed condition; a one-way clutch disposed between said drive shaft and said input shaft, said one-way clutch limiting relative rotation between said drive shaft and said input shaft to a single direction; and a gear system including a sun gear, a plurality of planetary gears and a ring gear disposed between said drive shaft and said input shaft, said drive shaft being attached to said sun gear such that said one-way clutch is disposed between said input shaft and said sun gear, said gear system being selectively switchable between said high speed condition where said drive shaft rotates faster than said input shaft and said low speed condition where said drive shaft rotates at the same speed as said input shaft, said planetary gears being fixedly coupled to said input shaft and always rotating with rotation of said input shaft; a clutch assembly disposed between said gear system and said housing and operable to switch said gear system between said high and low speed conditions, said clutch assembly including a biasing member that biases a component of said clutch assembly into engagement with a component of said gear system and said engagement corresponding to said high speed condition. 2. The two speed compressor assembly in claim 1 wherein said drive shaft rotates at the same speed as said input shaft when said gear system is in said low speed condition. 3. The two speed compressor assembly in claim 1 wherein said ring gear is locked to said housing when said gear system is in said high speed condition. 4. The two speed compressor assembly in claim 1 wherein said input shaft is attached to said plurality of planetary gears. 5. The two speed compressor assembly in claim 1 wherein said clutch assembly is disposed between said ring gear and said housing. 6. The two speed compressor assembly of claim 1 wherein said sun gear is fixedly coupled to and drives rotation of said drive shaft in both of said high and low speed conditions. 7. A scroll machine comprising: a housing; a power supply external to said housing; a first scroll member disposed within said housing, said first scroll member having a first spiral wrap; a second scroll member disposed within said housing, said second scroll member having a second spiral wrap intermeshed with said first spiral wrap; a drive shaft rotatably supported with respect to said housing, said drive shaft receiving rotational input and transferring said rotational input to one of said scroll members for causing said scroll members to orbit relative to one another whereby said spiral wraps will create pockets of progressively changing volume and are operable to compress a working fluid from a suction pressure to a discharge pressure; an input shaft actuated by said power supply that is rotatably supported with respect to said housing and that drives said drive shaft; a one-way clutch disposed between said input shaft and said drive shaft; a gear system including a sun gear, a plurality of planetary gears, and a ring gear disposed between said drive shaft and said input shaft, said drive shaft being attached to said sun gear such that said one-way clutch is disposed between said input shaft and said sun gear, and said gear system being selectively switchable between a high speed condition and a low speed condition; and a clutch assembly operable to switch said gear assembly between said high and low speed conditions, said clutch assembly switching said gear assembly between one of said high and low speed conditions to the other one of said high and low speed conditions in response to receiving working fluid compressed by said scroll members to a pressure greater than said suction pressure. 8. The scroll machine in claim 7 wherein said drive shaft rotates faster than said input shaft when said gear system is in said high speed condition. 9. The scroll machine in claim 8 wherein said drive shaft rotates at the same speed as said input shaft when said gear system is in said low speed condition. 10. The scroll machine in claim 7 wherein said drive shaft rotates at the same speed as said input shaft when said gear system is in said low speed condition. 11. The scroll machine in claim 7 wherein said input shaft is attached to said plurality of planetary gears and said drive shaft is attached to said sun gear. 12. The scroll machine in claim 11 further comprising a one-way clutch disposed between said input shaft and said sun gear. 13. The scroll machine in claim 7 wherein said clutch assembly is disposed between said ring gear and said housing. 14. The scroll machine in claim 7 wherein said clutch assembly is disposed between said gear system and said housing. 15. The scroll machine in claim 7 wherein said planetary gears are fixedly coupled to said input shaft and always rotate with rotation of said input shaft. 16. The scroll machine in claim 7 wherein said clutch assembly biases said gear assembly to said high speed condition. 17. The scroll machine in claim 7 wherein said clutch assembly includes a spring member and a clutch plate, said spring member biases said clutch plate into engagement with said ring gear. 18. The scroll machine in claim 16 wherein said compressed working fluid moves said clutch assembly from a first position corresponding to said high speed condition to a second position corresponding to said low speed position. 19. The scroll machine in claim 18 wherein said clutch assembly includes a housing fixed in the scroll machine, a movable piston, and a clutch plate coupled to said piston, and said compressed working fluid moves said piston and said clutch plate relative to said housing from said first position to said second position. 20. The scroll machine in claim 19 wherein said compressed working fluid is vented from said clutch assembly to a suction pressure location in said scroll machine to allow said clutch assembly to move from said second position to said first position. 21. The scroll machine in claim 7 wherein said ring gear is locked to said housing when said gear system is in said high speed condition. 22. The scroll machine in claim 7 wherein rotation of said input shaft results in rotation of said drive shaft regardless of said clutch assembly receiving working fluid. 23. A two speed compressor assembly comprising: a compressor having a housing; a drive shaft rotatably supported with respect to said housing and engaging said compressor; an input shaft rotatably supported with respect to said housing for driving said drive shaft in a high speed condition and a low speed condition; a gear system including a sun gear, a plurality of planetary gears, and a ring gear disposed between said drive shaft and said input shaft, said gear system being selectively switchable between said high speed condition where said drive shaft rotates faster than said input shaft and said low speed condition where said drive shaft rotates at the same speed as said input shaft, said planetary gears being fixedly coupled to said input shaft and always rotating with rotation of said input shaft, and said sun gear being fixedly coupled to said drive shaft and always rotating with rotation of said drive shaft; and a clutch assembly disposed between said gear system and said housing and operable to switch said gear system between said high and low speed conditions, said clutch assembly including a biasing member that biases a component of said clutch assembly into engagement with a component of said gear system and said engagement corresponding to said high speed condition. 24. The compressor assembly of claim 23, further comprising a one-way clutch disposed between said drive shaft and said input shaft, said one-way clutch limiting relative rotation between said drive shaft and said input shaft to a single direction. 25. The compressor assembly of claim 23, wherein said clutch assembly includes a piston and said component includes said ring gear. 26. The compressor assembly of claim 25, wherein said clutch assembly includes a chamber in fluid communication with a solenoid valve that selectively provides said chamber with a suction pressure or a discharge pressure to actuate said piston. 27. The compressor assembly of claim 26, wherein said high speed condition occurs when said chamber is exposed to said suction pressure and said low speed condition occurs when said chamber is exposed to said discharge pressure. 28. The compressor assembly of claim 23, wherein said drive shaft rotates at the same speed as said input shaft when said gear system is in said low speed condition. 29. The compressor assembly of claim 23, wherein said ring gear is locked to said housing when said gear system is in said high speed condition. 30. The compressor assembly of claim 24, wherein said drive shaft is attached to said sun gear, said one way clutch being disposed between said input shaft and said sun gear. 31. The compressor assembly of claim 26, wherein said piston includes said chamber.