Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber
Patent
1991-07-01
1992-09-22
Halvosa, George E. A.
Brakes
Internal-resistance motion retarder
Having a thrust member with a variable volume chamber
188315, 18832221, 267 6415, 267 6426, 267 6428, 244104FP, F16F 943, F16F 944
Patent
active
051488965
ABSTRACT:
A high pressure hydropneumatic shock absorber (10) includes a cylinder (12) with a piston (16) slidably positioned within the cylinder (12). The piston (16) and cylinder (12) are configured as a telescopic suspension unit. The piston (16) defines a first variable volume chamber (28) within the cylinder (12) and is filled with a working liquid. A reservoir (44) includes an interior movable barrier wall (62) defining first (60) and second (64) separated variable volume reservoir chambers. The first reservoir chamber (60) is filled with working liquid and the second reservoir chamber (64) is filled with a working gas. A flow-controlling damper valve (58) communicates the first cylinder chamber (28) with the first reservoir chamber (60). Relative telescopic movement of the piston (16) and cylinder (12) cause damped flow of the working liquid from the first cylinder chamber (28) to the first reservoir chamber (60) and cause responsive movement of the barrier wall (62) to allow expansion of the first reservoir chamber (60) and corresponding reduction of the second reservoir chamber (64), thereby compressing the working gas. A method of charging a hydropneumatic shock absorber (10) having a telescopic piston cylinder unit (12, 16) comprises the steps of providing a first variable volume chamber (28) defined by the piston (16) within the cylinder (12). A flow-controlling damper valve (58) communicating the first chamber (28) with a reservoir (44) is also provided. The first chamber (28) and reservoir (44) are filled with a predetermined volume of a working liquid and a predetermined volume of a working gas at a predetermined pressure. Further working fluid is added, thereby compressing the working gas, until the working liquid and working gas reach a predetermined desired static pressure at a predetermine relative position of the piston 16 to the cylinder 12.
REFERENCES:
patent: 2308404 (1943-01-01), Thornhill
patent: 3197191 (1965-07-01), Axthammer
patent: 3227435 (1966-01-01), Greer
patent: 3957259 (1976-05-01), Peddinghaus
patent: 4114866 (1978-09-01), Kato
patent: 4131139 (1978-12-01), Tanabe
patent: 4139182 (1979-02-01), Nagase et al.
patent: 4360192 (1982-11-01), Ishida
patent: 4483377 (1984-11-01), Cubalchini
patent: 4583346 (1986-04-01), Kameda
patent: 4732244 (1988-03-01), Verkuylen
patent: 4921227 (1990-05-01), Fukumura et al.
patent: 4973854 (1990-11-01), Hummel
Bellamy Glenn D.
Halvosa George E. A.
The Boeing Company
LandOfFree
High pressure hydropneumatic 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 High pressure hydropneumatic shock absorber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High pressure hydropneumatic shock absorber will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1062149