Valve timing controller for use with internal combustion engine

Details Valve timing controller for use with internal combustion engine Valve timing controller for use with internal combustion engine

1994-05-03

1995-01-17

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9018, 123 9031, 464 2, 74568R, F01L 134

Patent

active

053817648

ABSTRACT:
An internal combustion engine is equipped with a valve timing controller capable of minimizing the electric power consumption and frictional wear of elements. The valve timing controller can vary the valve timing of valves. A camshaft is moved axially forwardly or rearwardly by electrically energizing an outer solenoid clutch or a brake releasing solenoid, respectively. An axial movement of the camshaft results in a change in valve timing. With the exception of a transient period during which the valve timing is being varied, both the brake releasing solenoid and the outer clutch are electrically deenergized to thereby reduce the electric power consumption, and both of them are maintained out of contact with a displaceable disc 13 to thereby reduce frictional wear thereof.

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patent: 5152263 (1992-10-01), Danieli
patent: 5172061 (1992-12-01), Brune et al.
patent: 5219313 (1993-06-01), Danieli

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