Valve drive system and method

Details Valve drive system and method Valve drive system and method

2005-12-13

2005-12-13

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Electrical system

C251S129010, C251S129100, C251S129150

Reexamination Certificate

active

06973900

ABSTRACT:
When an internal combustion engine including an electromagnetic valve drive mechanism driving a plurality of valves is to be stopped, application of current to at least one magnet for one valve or valve group is stopped at a different timing from another valve or valve group.

REFERENCES:
patent: 4614170 (1986-09-01), Pischinger et al.
patent: 6170445 (2001-01-01), Hattori et al.
patent: 6276317 (2001-08-01), Yoeda et al.
patent: 6343577 (2002-02-01), Toriumi

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