Valve train with suction-controlled ring gear/internal gear pump

Details Valve train with suction-controlled ring gear/internal gear pump Valve train with suction-controlled ring gear/internal gear pump

1997-11-12

1998-12-01

Argenbright, Tony M.

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123 9017, 417310, F01L 134, F04C 1504

Patent

active

058424490

ABSTRACT:
The invention relates to a valve train of an internal combustion engine having hydraulic actuator for controlling a valve control device a function of engine speed and having a pump driven by the engine for supplying the actuator with working fluid. The pump is configured as a suction-controlled ring-gear pump having a sealing web ending 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. 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: 4106446 (1978-08-01), Yamada et al.
patent: 4589387 (1986-05-01), Miura et al.
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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