Default device of actuator for variable lift valve operating...

Details Default device of actuator for variable lift valve operating... Default device of actuator for variable lift valve operating...

2007-02-02

2009-11-03

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090390

Reexamination Certificate

active

07610882

ABSTRACT:
In a default device of an actuator for a variable lift valve operating mechanism, in the event of failure of the actuator, a pressed portion of a lever pivotably supported on a support shaft is urged by a resilient force of a coil spring, an arm is pressed by a cam portion of the lever to rotate a control shaft in one direction to prevent valve lift from being a predetermined value or lower. The support shaft that pivotably supports the lever of a default mechanism is placed in a position offset from a rotation axis of the control shaft. Thus, as compared with the case where the support shaft is placed coaxially with the control shaft, a large urging force is input from the lever to the control shaft to reliably prevent the valve lift from being the predetermined value or lower.

REFERENCES:
patent: 5003939 (1991-04-01), King
patent: 5680837 (1997-10-01), Pierik
patent: 6532924 (2003-03-01), Pierik
patent: 2004/0020454 (2004-02-01), Koro et al.
patent: 2005/0211204 (2005-09-01), Todo et al.
patent: 1 717 428 (2006-11-01), None
patent: 1 754 865 (2007-02-01), None
patent: 59-41649 (1984-03-01), None
patent: 57-188717 (1985-11-01), None
patent: 62-74108 (1987-05-01), None
patent: 11-324625 (1999-11-01), None
patent: 2000-085398 (2000-03-01), None
patent: 2000-227010 (2000-08-01), None
patent: 2000-234508 (2000-08-01), None
patent: 2002-227010 (2000-08-01), None
patent: WO 2005-075798 (2005-08-01), None
patent: WO 2007/058092 (2007-05-01), None

Affiliated with

Also associated with

Rating

Default device of actuator for variable lift valve operating... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Default device of actuator for variable lift valve operating..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Default device of actuator for variable lift valve operating... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4133993