Variable capacity compressor

Details Variable capacity compressor Variable capacity compressor

1988-11-18

1989-09-12

Freeh, William L.

Pumps

With condition responsive pumped fluid control

Inlet throttle or stop valve

417310, F04B 4902, F04C 2908

Patent

active

048655244

ABSTRACT:
A variable capacity compressor for an air conditioning system. A passage extends between a suction chamber and a high-pressure chamber, in which is arranged a control valve device having a pressure-responsive portion displaceable in response to change in pressure within the passage. A capacity control device controls the delivery quantity of the compressor in response to opening and closing of the passage by the control valve device. The control valve device opens and closes the passage in response to change in pressure within the suction chamber representative of a thermal load on the air conditioning system to thereby cause the capacity control device to vary the delivery quantity of the compressor. An auxiliary low-pressure chamber is provided in the passage, within which the pressure-responsive portion is disposed. A restriction hole communicates the suction chamber with the auxiliary low-pressure chamber for introducing pressure within the suction chamber into the auxiliary low-pressure chamber. The compressor thus constructed can maintain substantially constant the pressure of refrigerant gas at the output of an evaporator connected to the suction chamber, irrespective of change in the thermal load on the air conditioning system, thereby preventing freeze-up of the outlet of the evaporator, during operation under a low thermal load.

REFERENCES:
patent: 4801251 (1989-01-01), Nakajima et al.
patent: 4818189 (1989-04-01), Nakajima

Affiliated with

Also associated with

Rating

Variable capacity compressor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable capacity compressor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable capacity compressor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-912575