Hydraulic buffer for a vehicle

Details Hydraulic buffer for a vehicle Hydraulic buffer for a vehicle

1977-10-04

1980-06-03

Basinger, Sherman D.

Railway draft appliances

Car-end bumpers or buffers

Resilient

137853, 188287, 188318, 213 43, 293134, B61G 1112

Patent

active

042057531

ABSTRACT:
A hydraulic buffer for a vehicle, the buffer including a piston and cylinder arrangement in which the piston is displaced by the pressure of hydraulic fluid, the hydraulic fluid being contained in a chamber defined by the piston and cylinder, the chamber being in flow communication with a reservoir for the hydraulic fluid, a valve being provided for permitting flow from the chamber to the reservoir, the valve comprising a perforated resilient sleeve in flow communication with the interior of the chamber and a resilient bush mounted on the periphery of the sleeve, an increase in pressure within the chamber causing deformation of the sleeve and bush, the deformation constituting the opening of the valve.

REFERENCES:
patent: 3417775 (1968-12-01), Smith
patent: 3596774 (1971-08-01), MacCurdy
patent: 3701402 (1972-10-01), Chelnokov et al.
patent: 3799193 (1974-03-01), Greenwood

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