Refrigeration – Automatic control – Responsive to vehicle body motion or traction
Patent
1983-10-03
1985-03-19
Wayner, William E.
Refrigeration
Automatic control
Responsive to vehicle body motion or traction
622285, 13762531, 417286, F04B 4900
Patent
active
045051224
ABSTRACT:
In a multicylinder/double acting compressor, front and rear discharge chambers as well as front and rear suction chambers are out of communication with each other within the compressor. Arranged in one of the discharge chambers is a discharge valve formed of a rotary valve, which is disposed to close discharge ports communicating associated cylinder chambers with the same discharge chamber. The discharge valve is adapted to keep all the above discharge ports opened. An electromagnetic stop valve is connected between the above discharge chamber and an associated compression fluid circuit, for interrupting the communication therebetween. Half delivery operation of the compressor is carried out while the discharge ports are kept opened by the discharge valve and simultaneously the stop valve is closed, to establish communication between all the associated cylinder chambers and the discharge chamber through the opened discharge ports, whereby compression fluid is moved between the individual cylinder chambers without being compressed and expanded, as the pistons are reciprocated within the respective cylinder chambers.
REFERENCES:
patent: 2633325 (1953-03-01), Whitlock, Jr.
patent: 4328831 (1982-05-01), Wolff
patent: 4403921 (1983-09-01), Kato et al.
Diesel Kiki Co. Ltd.
Wayner William E.
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