Dry coil

Details Dry coil Dry coil

1992-08-20

1993-08-24

Rosenthal, Arnold

Valves and valve actuation

Electrically actuated valve

Including solenoid

25112915, 2395853, F16K 3106

Patent

active

052382249

ABSTRACT:
The coil of a solenoid-operated valve is fluid-isolated from fluid whose flow is controlled by the valve by providing the solenoid with an imperforate transverse end wall having a radially inner annular ferromagnetic zone forming one portion of the stator, a radially outer annular ferromagnetic zone forming another portion of the stator, and a radially intermediate annular zone of non-magnetic material separating the radially inner and radially outer ferromagnetic zones.

REFERENCES:
patent: 2860850 (1958-11-01), Rhodes et al.
patent: 3817491 (1974-06-01), Burckhardt et al.
patent: 3960361 (1976-06-01), York
patent: 4725040 (1988-02-01), Fornuto et al.

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