Oil hydraulic pump

Details Oil hydraulic pump Oil hydraulic pump

1996-01-31

1997-08-05

Gluck, Richard E.

Pumps

Combined

285368, F16L 1900

Patent

active

056535830

ABSTRACT:
The invention provides an oil hydraulic pump wherein a suction connector can be attached readily to a body using a single bolt. Annular stepped portions direction reversely to each other are formed on a suction port of the body and a flange portion and an insertion projection of the suction connector, respectively, such that, when the insertion projection is inserted into the suction port, the annular stepped portions cooperate to form an annular seal groove. The annular seal groove has a pair of side faces opposing to each other in a direction perpendicular, and extending in parallel, to an axial line of the seal groove and serving as interference acting faces. The resilient force by the interference of the seal fitted in the seal groove acts only upon the interface acting faces. The outer diameter of the insertion projection of the suction connector is a little greater than the inner diameter of the suction port of the body so that, when the insertion projection is compulsorily inserted into the suction port, the suction connector is temporarily fastened to the suction port.

REFERENCES:
patent: 2632659 (1953-03-01), Lee
patent: 2817543 (1957-12-01), Corsette
patent: 2935343 (1960-05-01), Ellis
patent: 3545794 (1970-12-01), Wise et al.
patent: 4468054 (1984-08-01), Orth
patent: 5163716 (1992-11-01), Bolton et al.

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