Internal-combustion engines – Poppet valve operating mechanism – Electrical system
Patent
1989-12-05
1990-07-03
Okonsky, David A.
Internal-combustion engines
Poppet valve operating mechanism
Electrical system
60324, F01L 904, F01N 700
Patent
active
049381792
ABSTRACT:
A valve control system for controlling intake and exhaust valves of an internal combustion engine associated with an exhaust brake includes electromagnetic actuator means for electromagnetically operating the intake and exhaust valves. When the exhaust brake is applied, the electromagnetic actuator means is operated to increase the force to close the exhaust valve of the cylinder in the intake stroke. With the exhaust valve thus securely closed, the back pressure of exhaust gases on the engine can be increased thereby to increase the power of the engine brake being applied.
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patent: 4544986 (1985-10-01), Buchl
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patent: 4665692 (1987-05-01), Inaba
patent: 4707987 (1987-11-01), Atkin
patent: 4715332 (1987-12-01), Kreuter
patent: 4779582 (1988-10-01), Lequesne
Isuzu Motors Limited
Lo Weilun
Okonsky David A.
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