Valve train of an internal combustion engine

Details Valve train of an internal combustion engine Valve train of an internal combustion engine

2011-07-19

2011-07-19

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Cam

C123S090160, C123S090440, C029S888100

Reexamination Certificate

active

07980217

ABSTRACT:
A valve train of an internal combustion engine with at least one camshaft (1) on which at least one rotatable cam (2) is arranged fixed in the axial direction, wherein a rotationally fixed connection of the at least one cam (2) with the camshaft (3) can be selectively established and released by an associated coupling-like locking device (3). So that the valve train has a compact construction and low production costs and nevertheless low wear in operation, it is provided that the locking device (3) is held within the cam (2) and has a spring-loaded, annular locking collar (12) that can move in the axial direction on the camshaft (1) and, as a counter part to the locking collar (12), locking shoes (11, 11′) coupled with the cam (2), wherein, in a locking position, the locking collar (12) is pressed against the locking shoes (11, 11′) by contacting, ramp-shaped boundary surfaces (19, 20) formed on the locking collar (12) and the locking shoes (11, 11′), so that radial projections (15) arranged on the locking shoes (11, 11′) engage in adjacent, pocket-shaped receptacles (16) of the camshaft (2) by a radial force and, in an unlocked position, the locking collar (12) is released from the locking shoes (11, 11′) by a force acting against the radial force.

REFERENCES:
patent: 5158049 (1992-10-01), Neumann
patent: 5239885 (1993-08-01), Voigt
patent: 5645022 (1997-07-01), Yamamoto et al.
patent: 6725818 (2004-04-01), Methley
patent: 7114473 (2006-10-01), Taki
patent: 2007/0034184 (2007-02-01), Dengler

Affiliated with

Also associated with

Rating

Valve train of an internal combustion engine 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 train of an internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve train of an internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2637894