Variable displacement cylindrical pump

Details Variable displacement cylindrical pump Variable displacement cylindrical pump

1974-10-21

1976-01-20

Freeh, William L.

Expansible chamber devices

Displacement control of plural cylinders arranged in...

Parallel cylinders

91504, F01B 1304

Patent

active

039330834

ABSTRACT:
A variable displacement cylindrical pump is provided having a sectional housing and a cam plate having trunnions and trunnion bearings. A first generally annular pump housing section is provided having oppositely disposed recesses formed in its inner periphery that have semi-circular portions at one end for axially receiving the cam plate trunnions and trunnion bearings. The trunnion bearings are secured in their recesses by the assembly of a second adjoining pump section housing and by biasing springs disposed between the trunnion bearings and the second housing section.

REFERENCES:
patent: 2307041 (1943-01-01), Hawley, Jr. et al.
patent: 3092034 (1963-06-01), Bartholomaus
patent: 3266434 (1966-08-01), McAlvay
patent: 3661058 (1972-05-01), Peron
patent: 3834281 (1974-09-01), Heyl

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