Acceleration sensitive shock absorber

Details Acceleration sensitive shock absorber Acceleration sensitive shock absorber

1992-05-05

1995-10-31

Graham, Matthew C.

Brakes

Internal-resistance motion retarder

With fluid regulated in response to inertia of valve member

188315, F16F 934

Patent

active

054621402

ABSTRACT:
A twin tube shock absorber has concentric inner and outer tubes connected to the wheel of a vehicle. A piston in the inner tube is connected to the chassis of the vehicle and divides the interior of the inner tube into upper and lower chambers. Fluid passes between these chambers and an annular reservoir between the tubes for absorbing shock in a conventional manner. An orifice is provided through the sidewall of the lower portion of the inner tube and is surrounded by a lower sleeve, which normally keeps the orifice closed. Upon upward acceleration of the tubes, the sleeve essentially remains fixed in space. The relative movement between the sleeve and tubes aligns a passage through the sleeve with the orifice and permits fluid to flow from the lower chamber below the piston to the annular reservoir. This provides a softer shock absorber when high upward acceleration is felt by the tubes of the shock absorber and a stiffer shock absorber during times when there is no large upward acceleration. A similar orifice and sleeve are provided at the upper end of the inner tube for permitting fluid to flow from the upper chamber into the reservoir during rapid downward acceleration of the tubes. The orifices are spaced apart from the ends of the inner tube so that when the piston passes an orifice, the characteristics of the shock may change from soft to stiff before the end of the stroke of the piston.

REFERENCES:
patent: 1281079 (1918-10-01), Sears
patent: 2140359 (1938-12-01), Hanna
patent: 2252772 (1939-08-01), Katcher
patent: 2329803 (1941-10-01), Whisler, Jr.
patent: 2431966 (1947-12-01), Rossman
patent: 3168168 (1965-02-01), Chorkel
patent: 3338347 (1967-08-01), Avner
patent: 3414092 (1968-12-01), Speckhart
patent: 4796732 (1989-01-01), Kong
patent: 4917222 (1990-04-01), Bacardit
patent: 4958706 (1990-09-01), Richardson et al.

Affiliated with

Also associated with

Rating

Acceleration sensitive shock absorber does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1767115