Arrangement of variable valve timing control system on V-type en

Details Arrangement of variable valve timing control system on V-type en Arrangement of variable valve timing control system on V-type en

1994-01-18

1994-10-11

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123 9017, 123 9031, 123 9038, 123196M, F01L 102

Patent

active

053537556

ABSTRACT:
A V-type internal combustion engine comprises a plurality of hydraulically actuable valve operation mode control actuators for two cylinder banks. A hydraulic fluid network is fluidly disposed between a main gallery of the cylinder block and the plurality of hydraulically actuable valve operation mode control actuators and includes a single control valve. The single control valve is common to all of the plurality of hydraulically actuable valve operation mode control actuators. This control valve is attached to a casing adapted to receive a drive system connecting the engine camshafts to the engine crankshaft. This casing has internal passages forming a part of the hydraulic fluid network between the control valve and the plurality of hydraulically actuable valve operation mode control actuators.

REFERENCES:
patent: 4607601 (1986-08-01), Kohler
patent: 4883027 (1989-11-01), Oikawa et al.
patent: 4928641 (1990-05-01), Niizato et al.
patent: 5010859 (1991-04-01), Ogami et al.
patent: 5195472 (1993-03-01), Jacques et al.
patent: 5216984 (1993-06-01), Shimano
patent: 5271360 (1993-12-01), Kano et al.

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