Pumps – Three or more cylinders arranged in parallel – radial – or...
Patent
1980-07-17
1983-02-15
Freeh, William L.
Pumps
Three or more cylinders arranged in parallel, radial, or...
417440, F04B 118, F04B 3910, F04B 4902
Patent
active
043738702
ABSTRACT:
A reciprocating piston swash plate refrigerant compressor is disclosed having a variable pumping capacity control arrangement wherein the pumping capacity is varied by effecting communication between the compressor's suction side and one or more of the cylinders during compression. Such communication is provided by a bypass valve controlling an additional suction port formed in the head end of the cylinder in parallel with the normal valve controlled suction port therefor. The bypass valve is urged to open the bypass port by cylinder pressure acting directly and continuously on a small pressure responsive area thereof and is urged to close the bypass port by discharge pressure delivered to act on a large pressure responsive area thereof under the control of a separate control valve which alternatively communicates suction side pressure with the large pressure responsive area when it is desired to permit the bypass valve to be opened by the cylinder pressure.
REFERENCES:
patent: 1636439 (1927-07-01), Riesner
patent: 1764646 (1930-06-01), Riesner
patent: 1766682 (1930-06-01), Pescara
patent: 2261541 (1966-07-01), Kocker
patent: 2462039 (1949-02-01), Gibson
patent: 2982218 (1961-05-01), Lucien
patent: 3151569 (1964-10-01), Muller
patent: 3295748 (1967-01-01), Leitgob
patent: 3303988 (1967-02-01), Weatherhead
patent: 3385508 (1968-05-01), Shaw
patent: 3692052 (1972-09-01), Cattanach
patent: 3759057 (1973-09-01), English et al.
patent: 3967644 (1976-07-01), St. Laurent
patent: 4026122 (1977-05-01), Kuhn
Freeh William L.
General Motors Corporation
Phillips R. L.
LandOfFree
Variable capacity positive displacement type 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 positive displacement type compressor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable capacity positive displacement type compressor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1798611