Piston and cylinder unit

Details Piston and cylinder unit Piston and cylinder unit

1986-02-20

1987-12-29

Garrett, Robert E.

Motors: expansible chamber type

Fluid supply through diverse paths to single expansible chamber

Drifting or coasting on lower pressure

91 20, 91 27, 91 31, 91410, 25112902, F01B 2502, F15B 1304

Patent

active

047152648

ABSTRACT:
The invention relates to piston and cylinder unit with a regulating valve for controlling the speed of the piston. The regulating valve has an open position in which it allows free passage of a fluid to the piston and a choking position in which it reduces the rate of such flow for influencing the speed of the piston. Furthermore there is at least one sensor responding to a given position of the piston and designed to change over the setting of the regulating valve. The sensor is an inductive, electrical or magnetic contactless sensor. The regulating valve has a setting unit electrically operated by the regulating valve so that the regulating valve is switched between its open and choked positions.

REFERENCES:
patent: 1734095 (1929-11-01), Mancib
patent: 2685276 (1954-08-01), Dyken
patent: 3420141 (1969-01-01), Hague et al.
patent: 3771802 (1973-11-01), Hiramatu et al.
patent: 4121618 (1978-10-01), Sweeney
patent: 4176586 (1979-12-01), Stoll et al.
patent: 4335867 (1982-06-01), Bihlmaier
patent: 4378726 (1983-04-01), Stoll

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