Oil pressure regulating valve

Details Oil pressure regulating valve Oil pressure regulating valve

1985-11-27

1987-04-14

Cohan, Alan

Fluid handling

Line condition change responsive valves

Direct response valves

137538, 137540, F16K 1502, F16K 1704

Patent

active

046570438

ABSTRACT:
A pressure relief valve for a lubrication system of an internal combustion engine includes a valve body disposed within a generally cylindrical bore in a housing. The valve body is axially movable within the bore and is provided with a sealing surface on one end. A spring biases the sealing surface against a valve seat in the housing. A guide, which is preferably sleeve-shaped, is non-fixedly arranged within the bore for guiding the axial movement of the valve body and reducing the impact of manufacturing tolerance variations on valve operation. In a preferred embodiment, the sealing surface of the valve body is spherically shaped and the valve seat is conically shaped. A vent passage is provided in the sleeve-shaped guide to equalize pressures within the bore during operation of the valve.

REFERENCES:
patent: 955043 (1910-04-01), Barr et al.
patent: 1691449 (1928-11-01), Sharp
patent: 1775833 (1930-09-01), Schneider
patent: 2305519 (1942-12-01), Dunmire
patent: 2796075 (1957-06-01), Focht
patent: 2826216 (1958-03-01), Thomas
patent: 3105517 (1963-10-01), Alfieri
patent: 3415271 (1968-12-01), Maasburg et al.
patent: 4091839 (1978-05-01), Donner

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