Solenoid valve

Details Solenoid valve Solenoid valve

1986-10-10

1988-09-27

Rosenthal, Arnold

Fluid handling

Systems

Plural noncommunicating flow paths

137870, 25112915, 25112916, 251337, F16K 3106

Patent

active

047734450

ABSTRACT:
An improved solenoid poppet valve includes an endless magnetic gap loop which overlies the valve chamber. The axis of the poppet valve intersects the magnetic gap and can be self centered by the energizing of the solenoid. The valve chamber can be sealed from the solenoid coil and magnetic poles using a relatively thin isolating material which can be fully supported by the magnetic pole structure. A novel dual rate spring combination supports and centers the poppets in the valve chamber. The spring provides one force to maintained the valve in the closed position and a second, greater force to "kick" the poppet away from the magnetic poles when the solenoid is deenergized. In alternative embodiments, the valve of the present invention can control the flow of one or several fluids. Yet other embodiments can provide several valves to control the flow of a single fluid.

REFERENCES:
patent: 2321853 (1943-06-01), Ray
patent: 2881980 (1959-04-01), Beck et al.
patent: 3472277 (1969-10-01), Reinicke et al.
patent: 4196751 (1980-04-01), Fischer et al.

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