Potential-magnetic energy driven valve mechanism

Details Potential-magnetic energy driven valve mechanism Potential-magnetic energy driven valve mechanism

1988-02-08

1989-11-28

Dolinar, Andrew M.

Internal-combustion engines

Poppet valve operating mechanism

Electrical system

251 48, 251 65, 2511291, 335234, 361194, F01L 906

Patent

active

048830259

ABSTRACT:
A bistable electronically controlled transducer having an armature reciprocable between first and second positions is disclosed including either a stressed spring or compressed air within a closed chamber in the transducer for causing the armature to move, and a permanent magnet latching arrangement for holding the armature in either one of the positions. An electromagnetic arrangement for temporarily neutralizing the effect of the permanent magnet latching arrangement releases the armature to move from one to the other of the positions. The transducer finds particular utility as an actuator mechanism for moving internal combustion engine valves.

REFERENCES:
patent: 3882833 (1975-05-01), Longstaff et al.
patent: 4455543 (1984-06-01), Pischinger et al.
patent: 4533890 (1985-08-01), Patel
patent: 4749167 (1988-06-01), Gottschall
patent: 4779582 (1988-10-01), Lequesne
patent: 4831973 (1989-05-01), Richeson, Jr.

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