公开(公告)号：DE69832882T2

公开(公告)日：2006-06-29

申请号：DE69832882

申请日：1998-08-13

Applicant: BRISTOL COMPRESSORS

Inventor： LOPRETE F ,  YOUNG R ,  TOLBERT W ,  MONK T ,  WAGNER C ,  HILL T ,  PIPPIN LARRY ,  PETERS B

IPC: F04B49/00 ,  F04B39/00 ,  F04B39/02 ,  F04B49/06 ,  F04B49/12 ,  F25B1/10 ,  G11C16/08

Abstract: A stabilizing structure for a throw adjusting eccentric cam in a two-stage reciprocating compressor is provided. The compressor includes a block that has at least one cylinder with an associated compression chamber and piston, a crankshaft that includes an eccentric crankpin, and a reversible motor for rotating the crankshaft in a forward and a reverse direction. An eccentric, two position cam is rotatably mounted over the crankpin. The cam rotates to and operates at a first position relative to said crankpin when the motor is running in the forward direction and rotates to and operates at a second position relative to said crankpin when the motor is running in the reverse direction. The combined eccentricities of the crankpin and the cam cause the piston to have a first stroke when the motor operates in the forward direction and a second stroke when the motor operates in the reverse direction. There is also provided a control for selectively operating the motor either in the forward direction or in the reverse direction.

公开(公告)号：DE69832882D1

公开(公告)日：2006-01-26

申请号：DE69832882

申请日：1998-08-13

Applicant: BRISTOL COMPRESSORS

Inventor： LOPRETE F ,  YOUNG R ,  TOLBERT W ,  MONK T ,  WAGNER C ,  HILL T ,  PIPPIN LARRY ,  PETERS B

IPC: F04B39/00 ,  F04B39/02 ,  F04B49/00 ,  F04B49/06 ,  F04B49/12 ,  F25B1/10 ,  G11C16/08

Abstract: A stabilizing structure for a throw adjusting eccentric cam in a two-stage reciprocating compressor is provided. The compressor includes a block that has at least one cylinder with an associated compression chamber and piston, a crankshaft that includes an eccentric crankpin, and a reversible motor for rotating the crankshaft in a forward and a reverse direction. An eccentric, two position cam is rotatably mounted over the crankpin. The cam rotates to and operates at a first position relative to said crankpin when the motor is running in the forward direction and rotates to and operates at a second position relative to said crankpin when the motor is running in the reverse direction. The combined eccentricities of the crankpin and the cam cause the piston to have a first stroke when the motor operates in the forward direction and a second stroke when the motor operates in the reverse direction. There is also provided a control for selectively operating the motor either in the forward direction or in the reverse direction.