Brakes – Internal-resistance motion retarder – With means compensating for change in temperature or viscosity
Patent
1982-07-29
1984-12-04
Stoner, Jr., Bruce H.
Brakes
Internal-resistance motion retarder
With means compensating for change in temperature or viscosity
188315, 18832217, 236 93R, F16F 952
Patent
active
044858990
ABSTRACT:
In a shock absorber unit for vehicles of the double-tube type a piston rod guiding and sealing unit is provided adjacent a first end of a cylinder and a container surrounding the cylinder, and a bottom valve unit is provided at a second end of the cylinder and the container, respectively. The cavity within the cylinder is divided into two working chambers by a piston unit. The piston unit is connected to a piston rod extending through the piston rod guiding and sealing unit. The cavity within the cylinder is filled with a damping liquid. The compensation chamber defined radially between the cylinder and the container is partially filled with damping liquid and partially filled with gas. Adjacent the piston rod guiding and sealing unit, there is provided a by-pass connection the working chamber adjacent the piston rod guiding and sealing unit and the compensation chamber. This by-pass defines a throttling flow cross-sectional area. This flow cross-sectional area is defined by a temperature sensitive member having a high coefficient of thermal expansion, such that the throttling flow cross-sectional area is reduced in response to increasing temperature. By this reduction the reduction of viscosity is compensated for, such as to maintain the damping characteristic of the shock absorber unit approximately invariable within a predetermined range of operational temperatures.
REFERENCES:
patent: 2196436 (1940-04-01), Briggs
patent: 2695079 (1954-11-01), Brundrett
patent: 3674120 (1972-07-01), Johnson
patent: 4238009 (1980-12-01), Wossner et al.
patent: 4369864 (1983-01-01), de Carbon
Saitou, Abstract of Japanese Application JP-A-5520936, Published Apr. 19, 1980 in Patent Abstracts of Japan, vol. 4, No. 53.
Fichtel & Sachs AG
Oberleitner Robert J.
Stoner Jr. Bruce H.
LandOfFree
Shock absorber unit for vehicles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shock absorber unit for vehicles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shock absorber unit for vehicles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1578331