Auto tensioner

Details Auto tensioner Auto tensioner

2007-07-10

2007-07-10

Charles, Marcus (Department: 3682)

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Tension adjuster or shifter driven by electrical or fluid motor

C474S109000, C474S101000

Reexamination Certificate

active

10802219

ABSTRACT:
In an auto tensioner, a high pressure oil chamber sectioned by a leading end portion of a cylinder and a plunger is provided within the cylinder. A gas chamber and an oil reservoir chamber are sectioned in a sealed manner in an outer periphery of the cylinder and the plunger. A first oil passage communicating the gas chamber with the high pressure oil chamber is provided within the plunger. A second oil passage communicating the high pressure oil chamber with the oil reservoir chamber is provided in the cylinder. The first oil passage is provided with a pressure side damping force generating means, (an orifice hole) and a first check valve closing during expansion. A second check valve closing during compression is provided in the second oil passage, and a locking means (an electromagnetic valve) closing the first check valve is provided.

REFERENCES:
patent: 4790801 (1988-12-01), Schmidt et al.
patent: 4976660 (1990-12-01), Breindl
patent: 5026330 (1991-06-01), Zermati et al.
patent: 6036612 (2000-03-01), Katogi et al.
patent: 6234929 (2001-05-01), Rasche
patent: 6352487 (2002-03-01), Tada
patent: 7070528 (2006-07-01), Emizu et al.
patent: 7094168 (2006-08-01), Tanaka
patent: 7108621 (2006-09-01), Ullein et al.
patent: 4039816 (1992-04-01), None
patent: 1022487 (2000-07-01), None
patent: 2537547 (1996-08-01), None

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3738213