Cam driven compressor

Details Cam driven compressor Cam driven compressor

1976-10-15

1978-08-08

Freeh, William L.

Pumps

Changeable by assembly or disassembly

417273, F04B 1900, F04B 114

Patent

active

041053710

ABSTRACT:
A refrigerant compressor constructed for the addition of one or more pumping cylinders for the change of capacity. Improved mechanical efficiency is attained by means of a motor-driven eccentric cam imparting linear motion through one or more of the compressor pistons to the compression stroke and wherein the work to reciprocate each piston is assisted by dual out-of-phase compression springs. The cam is configured for producing a predetermined dwell-period when each piston reaches its bottom-dead-center position wherein a maximum gas charge will be inducted into the cylinder bore by the ram velocity effect of the inward moving gas stream. In a like manner the cam design provides piston dwell time at its top-dead-center position wherein an increased gas charge will be expelled per cycle resulting in increased volumetric efficiency.

REFERENCES:
patent: 1139263 (1915-05-01), Erickson et al.
patent: 1723874 (1929-08-01), Lunge
patent: 1964679 (1934-06-01), Springfield
patent: 2980024 (1961-04-01), Pope
patent: 2992619 (1961-07-01), Nilges
patent: 3288079 (1966-11-01), Kling
patent: 3313215 (1967-04-01), Bieri
patent: 3426696 (1969-02-01), Poynfer
patent: 3759146 (1973-09-01), Brotherton
patent: 3912421 (1975-10-01), Gelin

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