Valve control system for engines

Details Valve control system for engines Valve control system for engines

1988-07-25

1990-01-09

Myhre, Charles J.

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123 9016, F01L 902, F01L 134

Patent

active

048920673

ABSTRACT:
A valve control system particularly adapted to engines having four valves per engine cylinder, the valve system including an electronically controlled valve lifter that operates in conjunction with the actuating cam enabling the effective timing and displacement of the valve to be varied within certain ranges accordance with engine operating conditions and demand under the electronic control of a microprocessor.

REFERENCES:
patent: 3903849 (1975-09-01), List et al.
patent: 4112884 (1978-09-01), Tominaga
patent: 4408580 (1983-10-01), Kosuda et al.
patent: 4421081 (1983-12-01), Nakamura et al.
patent: 4466390 (1984-08-01), Babitzka et al.
patent: 4633844 (1987-01-01), Okimoto
patent: 4696265 (1987-09-01), Nohira
patent: 4779589 (1988-10-01), Matsuura et al.

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