Valve-driving system and method for internal combustion...

Details Valve-driving system and method for internal combustion... Valve-driving system and method for internal combustion...

2006-08-01

2006-08-01

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090170, C123S090310, C123S347000

Reexamination Certificate

active

07082911

ABSTRACT:
A valve-driving system for an internal combustion engine is provided with: an electric motor for generating a rotational driving force to drive a valve for intake or exhaust mounted on a cylinder in the internal combustion engine so as to open and close the valve in synchronization with a piston motion in the internal combustion engine; a transmitting device capable of changing between (i) a first condition to transmit therethrough the rotational driving force to the valve from said electric motor and (ii) a second condition to stop an opening or closing operation of the valve or to make the valve driven by a low lift amount; a judging device for judging whether or not synchronization between the opening or closing operation of the valve and the piston motion is abnormal; and a fail-safe device for changing said transmitting device to the second condition if it is judged by the judging device that the synchronization is abnormal.

REFERENCES:
patent: 5873335 (1999-02-01), Wright et al.
patent: 5960755 (1999-10-01), Diggs et al.
patent: 6006707 (1999-12-01), Ito
patent: 6505587 (2003-01-01), Scheidt
patent: 6718920 (2004-04-01), Hoshino et al.
patent: 2003/0005899 (2003-01-01), Scheidt
patent: 101 16 707 (2002-10-01), None
patent: 2 608 675 (1988-06-01), None
patent: A 59-68509 (1984-04-01), None
patent: A 2-259212 (1990-10-01), None
patent: A 8-177536 (1996-07-01), None
patent: A 10-169418 (1998-06-01), None
patent: A 2001-152820 (2001-06-01), None

Affiliated with

Also associated with

Rating

Valve-driving system and method for internal combustion... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Valve-driving system and method for internal combustion..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve-driving system and method for internal combustion... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3675181