Piston/cylinder assemblies

Details Piston/cylinder assemblies Piston/cylinder assemblies

1976-10-04

1978-05-09

Schwadron, Martin P.

Motors: expansible chamber type

Fluid supply through diverse paths to single expansible chamber

Position responsive

91408, 277205, F15B 1522

Patent

active

040880613

ABSTRACT:
In a piston/cylinder assembly in which the power strokes of the piston are damped, there is a pressure chamber on one side of the piston and an external pipe which serves for the discharge and supply of pressure medium. A restricted zone is provided in a pipe which connects the external pipe to the pressure chamber for limiting the flow of motive gas therethrough. A return pipe connects the external pipe with the pressure chamber and has a one-way valve which closes the return pipe when the pressure medium is discharged from the pressure chamber and opens it when pressure medium is supplied from the external pipe. A connecting line extends from the external pipe to the pressure chamber, and the piston has a member projecting therefrom engageable in the connecting line when the damping movement begins to close that line.

REFERENCES:
patent: 2719510 (1955-10-01), Elder
patent: 2935047 (1960-05-01), Ortman
patent: 3194570 (1965-07-01), Haynie
patent: 3238850 (1966-03-01), Desmarchelier
patent: 3247767 (1966-04-01), Aslan
patent: 3267815 (1966-08-01), Ortman
patent: 3440930 (1969-04-01), Olson
patent: 3805672 (1974-04-01), Pekrul
patent: 3913460 (1975-10-01), Wright

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