Internal gear pump

Details Internal gear pump Internal gear pump

1995-10-17

1998-04-14

Argenbright, Tony M.

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

123 9017, F04C 1504

Patent

active

057385017

ABSTRACT:
The invention relates to a valve train of an internal combustion engine having hydraulic actuator means for controlling a valve control means as a function of engine speed and having a pump driven by the engine for supplying the actuator means with working fluid. The pump is configured as a suction-controlled ring-gear pump having a sealing web extending over a plurality of pockets, and featuring a delivery characteristic as a function of speed which is adapted to the working fluid requirement of said actuator means. In addition, an internal gear pump is provided, particularly useful for such a valve train.

REFERENCES:
patent: 2509321 (1950-05-01), Topanelian, Jr.
patent: 3272128 (1966-09-01), Brundage
patent: 5096397 (1992-03-01), Eisenmann
patent: 5247914 (1993-09-01), Imai et al.
patent: 5380169 (1995-01-01), Eisenmann
patent: 5413470 (1995-05-01), Eisenmann
patent: 5547349 (1996-08-01), Kimura et al.

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