Bearings for gear pumps

Details Bearings for gear pumps Bearings for gear pumps

1983-11-07

1986-03-04

Vrablik, John J.

Rotary expansible chamber devices

Pressure fluid radially balances working or rotating...

Counterbalancing fluid directed to rotating member shaft...

418102, 384111, 384113, F04C 2902, F16C 3206

Patent

active

045738890

ABSTRACT:
The bore of a bearing bush for a gear pump has a first recess located in a zone of load concentration in the bore, the first recess being supplied with a fluid under pressure. A second recess in the bore is located wholly outside the zone in which concentrated loads occur and acts as a reservoir for fluid, to prevent cavitation within the bore as a result of low pressures caused by radical movements of a shaft within the bush. A passage connects the second recess with a zone of lower pressure within the pump.

REFERENCES:
patent: 2479077 (1949-08-01), McAlvay
patent: 2891483 (1959-06-01), Murray et al.
patent: 3053192 (1962-09-01), Nonnenmacher
patent: 3528756 (1970-09-01), Norlin et al.
patent: 3671155 (1972-06-01), Dubinsky
patent: 4090820 (1978-05-01), Teruyama

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