Pumps – With condition responsive pumped fluid control – Plural separate sensing means for a single fluid controller
Patent
1981-03-26
1983-07-26
Schwartz, Larry I.
Pumps
With condition responsive pumped fluid control
Plural separate sensing means for a single fluid controller
417292, 417293, 417441, 62133, F04B 4906
Patent
active
043952038
ABSTRACT:
A vane compressor is provided with a discharge rate control device which comprises valve means arranged to close part of the fluid suction passage leading to the pump working chambers to vary the opening of the fluid suction passage, and valve driving means for controlling the valve means. The valve means may be formed of at least one valve disposed to close an associated one of the inlet ports opening in the pump working chambers. The discharge rate control device may be arranged to be operated as a function of the rotational speed of the rotor of the compressor or the temperature of fluid being sucked into the compressor, which makes it possible, for instance, to keep the refrigerating capacity of an air conditioning system associated with the compressor at a substantially constant value.
REFERENCES:
patent: 1940857 (1933-12-01), Golladay et al.
patent: 3834846 (1974-09-01), Linder et al.
patent: 4330999 (1982-05-01), Nakayama
Diesel Kiki Co. Ltd.
Schwartz Larry I.
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