Mechanical adjuster

Details Mechanical adjuster Mechanical adjuster

2011-06-07

2011-06-07

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Tappet

C123S090390, C123S090440, C123S090480, C074S569000

Reexamination Certificate

active

07954468

ABSTRACT:
A mechanical adjuster that automatically increases or decreases or decreases valve clearance is provided that includes: a housing (12) having threaded portions (24, 26); a threaded member (14) thread-coupled with the threaded portion (24); a threaded member (16) connected to the threaded member (14) via mutual rotation prevention-couplings (32, 38) and thread-coupled with the threaded portion (26). When a load acting on the threaded member (14) is equal to or less than a valve closing load, valve clearance is decreased by an integrated rotation of the threaded members (14, 16). with a slip torque of the threaded member (14)>a self-locking torque of the threaded member (16). When a load acting on the threaded member (14) is close to or exceeds a valve opening load, valve clearance is increased by an integral rotation of the threaded members (14, 16) with the absolute value of a slip torque of the threaded member (14)>a self-locking torque of the threaded member (16).

REFERENCES:
patent: 2821179 (1958-01-01), Oldberg
patent: 6834628 (2004-12-01), Duesmann
patent: 3-1203 (1991-01-01), None
patent: 4-44407 (1992-04-01), None
patent: 11-324617 (1999-11-01), None
patent: 2001-124159 (2001-05-01), None
patent: 2005-291153 (2005-10-01), None
patent: 2006-336585 (2006-12-01), None
International Search Report for PCT/JP2006/326221 mailed Apr. 10, 2007.
The extended European Search Report for PCT/JP2006/326221 mailed Feb. 18, 2011.

Affiliated with

Also associated with

Rating

Mechanical adjuster does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2649018