Rotationally balanced hydraulic swash plate plunger unit,...

Details Rotationally balanced hydraulic swash plate plunger unit,... Rotationally balanced hydraulic swash plate plunger unit,...

2006-02-14

2006-02-14

Look, Edward K. (Department: 3745)

Power plants

Pressure fluid source and motor

Input pump and rotary output motor system having...

C060S489000, C092S071000

Reexamination Certificate

active

06996981

ABSTRACT:
In order to provide a rotationally balanced hydraulic swash plate plunger unit, a swash plate plunger pump casing is provided with an unbalanced flange to balance a casing which has a swash plate member therein, without requiring a separate counter weight. A hydraulic swash plate plunger pump includes a pump swash plate member, installed in the pump casing and rotatably supported in an inclined manner therein, and a pump cylinder having a plurality of pump plungers slidably disposed therein. An unbalanced five-sided flange portion is formed integrally with the outer wall of the pump casing, to rotationally balance the entire unit.

REFERENCES:
patent: 3698189 (1972-10-01), Reimer
patent: 6474218 (2002-11-01), Saito et al.
patent: 6530218 (2003-03-01), Saito et al.
patent: 6698199 (2004-03-01), Hayashi et al.
patent: 63140163 (1988-06-01), None
patent: 06002753 (1994-01-01), None

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