Device for controlling the flow of fluid to a fluid unit

Details Device for controlling the flow of fluid to a fluid unit Device for controlling the flow of fluid to a fluid unit

1992-10-09

1994-05-24

Michalsky, Gerald A.

Motors: expansible chamber type

With motive fluid valve

Dither valve

91441, 91451, 91452, 91454, 91459, 13759617, 13762415, F15B 13044

Patent

active

053138732

ABSTRACT:
A fluid unit, for example a piston/cylinder unit, is supplied with fluid via a cyclically opened or closed on/off valve. The vacuum peaks occurring on the outlet side of the on/off valve when it is closed and the inertia forces of the flowing fluid are used to supply additional fluid to the fluid unit via a non-return valve leading from a low-pressure connection or reservoir to the fluid unit.

REFERENCES:
patent: Re29481 (1977-11-01), Larner
patent: 3722543 (1973-03-01), Tennis
patent: 4541241 (1985-09-01), Schulze
patent: 4870892 (1989-10-01), Thomsen et al.
patent: 5165320 (1992-11-01), Ravn
Steverungen und Regelungen an Pressen-Heute und Morgen, Michael Reinert, pp. 224-226, 228 & 231, O+P vol. 34, No. 4 (1990).

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