Air conditioning compressor

Details Air conditioning compressor Air conditioning compressor

1975-04-23

1976-12-21

Wayner, William E.

Pumps

Condition responsive variable volumetric capacity expansible...

62228, 92 605, F04B 4908

Patent

active

039985709

ABSTRACT:
A piston type compressor for use in an automotive air conditioning system with variable pumping or compressing capacity which is automatically modulated in response to operating conditions. Compressor improvements are solely to the piston so that the present investment in fixed displacement compressors is not diminished. Previous compressors may be modified by the substitution of the improved pistons to create a variable capacity compressor. Specifically, the piston modifications include a pressure responsive displacement means on the piston end which extends into the compression chamber during portions of the intake stroke and compression stroke to effectively decrease the volumetric pumping capacity of the compressor whenever a predetermined low pressure is sensed.

REFERENCES:
patent: 2912833 (1959-11-01), McGrath
patent: 3618475 (1971-11-01), Sauder

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