Valve timing control system for internal combustion engine

Details Valve timing control system for internal combustion engine Valve timing control system for internal combustion engine

1990-05-10

1992-04-14

Rollins-Cross, E.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9017, F01L 134

Patent

active

051037807

ABSTRACT:
In a valve timing control system for an internal combustion engine, a magnitude of a valve overlap is set small when a car speed is less than a predetermined value, irrespective of a monitored engine driving condition. On the other hand, the magnitude of the valve overlap is set large depending on the monitored engine driving condition when the car speed is no less than the predetermined value.

REFERENCES:
patent: 4844022 (1989-07-01), Konno
patent: 4856465 (1989-08-01), Denz et al.
patent: 4917057 (1990-04-01), Seki
patent: 4938188 (1990-07-01), Seki et al.
patent: 4960083 (1990-10-01), Seki et al.
patent: 4960094 (1990-10-01), Koike et al.
patent: 4960095 (1990-10-01), Koike et al.

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