Variable valve actuation apparatus

Details Variable valve actuation apparatus Variable valve actuation apparatus

1998-12-09

2000-03-28

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9017, 74568R, F01L 1300

Patent

active

060417463

ABSTRACT:
A variable valve actuation (VVA) apparatus comprises a supporting arm to support a pivot center of a rocker arm. The rocker arm operates a valve operating (VO) cam in response to operation of a drive cam on an engine driven drive shaft. The supporting arm is mounted for angular motion about an axis of rotation of the drive shaft to move the pivot center of the rocker arm along a circle about the drive shaft axis. The VO cam is mounted for pivot motion about the drive shaft axis. A supporting arm (SA) actuator is provided to position the pivot center of the rocker arm to any angular position to shift mode of operation of the VVA apparatus.

REFERENCES:
patent: 4397270 (1983-08-01), Aoyama
patent: 5899180 (1999-05-01), Fischer
patent: 5924334 (1999-07-01), Hara et al.
patent: 5937809 (1999-08-01), Pierik et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1316851