Internal combustion engine valve actuator apparatus

Details Internal combustion engine valve actuator apparatus Internal combustion engine valve actuator apparatus

1993-06-10

1994-08-09

Nelli, Raymond A.

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

F01L 902

Patent

active

053356330

ABSTRACT:
An internal combustion engine valve actuator apparatus for operating an intake valve or an exhaust valve of an engine. The valve actuator apparatus operates by selectively allowing fluid from a pressure source to flow into a valve actuator causing either an opening or a closing of the associated valve. The fluid is directed through a spool valve and solenoid arrangement which is controlled by a computer. The valve actuator apparatus also includes a solenoid powered actuator which operates by direct mechanical communication with the associated valve.

REFERENCES:
patent: 885459 (1908-04-01), Engler et al.
patent: 2962013 (1960-11-01), Reggio
patent: 3209737 (1965-10-01), Omotehara et al.
patent: 4791895 (1988-12-01), Tittizer
patent: 4930464 (1990-06-01), Letsche
patent: 5022358 (1991-06-01), Richeson
patent: 5248123 (1993-09-01), Richeson et al.

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