Variable capacity compressor having a capacity control system us

Details Variable capacity compressor having a capacity control system us Variable capacity compressor having a capacity control system us

1991-06-27

1993-04-06

Smith, Leonard E.

Pumps

With condition responsive pumped fluid control

Inlet throttle or stop valve

25112907, 417310, F04B 4908

Patent

active

051998556

ABSTRACT:
A variable capacity compressor comprises a control element for determining the timing of start of compression of refrigerant gas. Control pressure which acts on the control element to displace same between the minimum capacity position and the maximum capacity position is created in a high-pressure chamber by introducing discharge pressure thereinto. An electromagnetic valve opens and closes a passageway which commincates between the high-pressure chamber and a suction chamber by a pulse signal supplied from an ECU to control an amount of refrigerant gas leaking from the former into the latter to thereby control the level of the control pressure. The ECU makes the width of at least a first pulse or at least a first pulse base of the pulse signal wider than that of the following pulses or pulse bases, when the control element should start to be displaced between the minimum capacity position and the maximum capacity position. The control pressure is introduced to act on both ends of a valve body of the electromagnetic valve, whereby it is made possible to open the valve by a small driving force of an electromagnetic actuator thereof.

REFERENCES:
patent: 4790351 (1988-12-01), Kervagoret
patent: 5056990 (1991-10-01), Nakajima

Affiliated with

Also associated with

Rating

Variable capacity compressor having a capacity control system us 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 having a capacity control system us, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable capacity compressor having a capacity control system us will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-532093