Variable valve timing apparatus

Details Variable valve timing apparatus Variable valve timing apparatus

2006-10-24

2008-11-04

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090160, C123S090310

Reexamination Certificate

active

07444969

ABSTRACT:
In the case where an intake valve has its phase in a first region between a most retarded angle and CA(1), the rotational speed of relative rotation between an output shaft of an electric motor and a sprocket is reduced at a reduction gear ratio R(1) to change the phase of the intake valve. In the case where the intake valve has its phase in a second region between CA(2) and a most advanced angle, the rotational speed of relative rotation is reduced at a reduction gear ratio R(2) to change the phase of the intake valve. As long as the rotational direction of relative rotation is the same, the phase of the intake valve is changed in the same direction for both of the first region between the most retarded angle and CA(1) and the second region between CA(2) and the most advanced angle.

REFERENCES:
patent: 5080053 (1992-01-01), Parsons
patent: 5992361 (1999-11-01), Murata et al.
patent: 6883482 (2005-04-01), Takenaka et al.
patent: 6920855 (2005-07-01), Takenaka et al.
patent: 2001/0006050 (2001-07-01), Heer
patent: 0 428 278 (1991-05-01), None
patent: A 2005-48707 (2005-02-01), None
patent: A 2005-98142 (2005-04-01), None
patent: WO 2006/038370 (2006-04-01), None

Affiliated with

Also associated with

Rating

Variable valve timing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable valve timing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable valve timing apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4024405