Pumps – Condition responsive control of drive transmission or pump... – Adjustable cam or linkage
Patent
1988-07-21
1990-04-03
Smith, Leonard E.
Pumps
Condition responsive control of drive transmission or pump...
Adjustable cam or linkage
F04B 126
Patent
active
049136267
ABSTRACT:
A refrigerant compressor including a compressor housing having a cylinder block is disclosed. A plurality of cylinders are formed around the periphery of the cylinder block and a piston is slidably fitted within each of the cylinders and is reciprocated by a drive mechanism. A crank chamber is formed between the cylinder block and a front end plate of the compressor housing. The drive mechanism includes a drive shaft, a rotor disposed on said drive shaft, a slant plate with an adjustable slant angle disposed adjacent the rotor, and a wobble plate disposed adjacent the slant plate. The drive shaft is rotatably supported within the front end plate. Rotation of the drive shaft causes rotation of the rotor and the slant plate, causing nutational motion of the wobble plate to reciprocate the pistons within their cylinders. The compressor housing includes a rear end plate including suction and discharge chambers. An inlet portion of the suction chamber and an outlet portion of the discharge chamber link the compressor with an external fluid circuit. The inlet portion is linked to an external evaporator. A narrowed portion is located between the inlet portion of the suction chamber and a main portion of the suction chamber and creates a pressure difference therebetween. A communication path links the crank chamber and the suction chamber and is controlled by a valve control means. When the capacity of the compressor is changed, the valve control means links the crank chamber with the external evaporator via the inlet portion due to the pressure difference created by the narrowed portion to reduce the outlet pressure thereof, preventing a decrease in efficiency of the evaporator.
REFERENCES:
patent: 4428718 (1984-01-01), Skinner
patent: 4580950 (1986-04-01), Sumikawa
patent: 4664604 (1987-05-01), Terauchi
patent: 4669272 (1987-06-01), Kawai
patent: 4723891 (1988-02-01), Takenaka
patent: 4730986 (1988-03-01), Kayukawa
patent: 4747753 (1988-05-01), Taguchi
patent: 4842488 (1989-06-01), Terauchi
Sanden Corporation
Smith Leonard E.
LandOfFree
Wobble plate type compressor with variable displacement mechanis does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wobble plate type compressor with variable displacement mechanis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wobble plate type compressor with variable displacement mechanis will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1354443