Poppet valve with float function

Details Poppet valve with float function Poppet valve with float function

1983-10-07

1985-03-26

Michalsky, Gerald A.

Fluid handling

Systems

Supply and exhaust

91461, 91464, 13759614, 13759618, F15B 13043

Patent

active

045067007

ABSTRACT:
A four-function valve for operating a 2-way hydraulic cylinder has a pair of solenoid-operated pilots. The valve also includes a pair of valve members and a pair of poppet members, all slidable within bores in a pair of hollow sleeves. The solenoid-operated pilot valves control pilot pressure communication to the valve members to control movement of the valve and poppet members. Each poppet member has a pair of seats, one engageable with a shoulder on the sleeve to control fluid flow between a pump and the cylinder, the other engageable with an end of the corresponding valve member to control fluid flow between a sump and the cylinder.

REFERENCES:
patent: 3587630 (1971-06-01), Dike et al.
patent: 4437385 (1984-03-01), Kramer et al.
patent: 4461314 (1984-07-01), Kramer
Control Concepts' Double-Piloted, 3-Way, Spool Module Check Valve.
Modular Controls' Valve Assembly, Normally Closed, 2-Way.

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