Evaporation canister flow rate valve

Details Evaporation canister flow rate valve Evaporation canister flow rate valve

1984-09-21

1986-02-18

Rosenthal, Arnold

Valves and valve actuation

Electrically actuated valve

Including solenoid

335281, F16K 3106

Patent

active

045709025

ABSTRACT:
A valve (10) comprising a first (16) and a second port (18), a valve seat (20) positioned about an axis in communication with one of the ports (16, 18), electromagnetic means (40, 42, 92, 96, 98, 100, 102, 110) for defining a preferred magnetic flux path for selectively opening and closing communication through the valve seat (20) comprising means (110) for directing the magnetic flux to flow around the coil including a metallic strap (110) positioned in surrounding relation to the coil. The valve including piston means (96, 98, 100, 102) including a piston (96) aligned with the valve seat including a spring (100) for biasing the piston (96) towards the valve seat, the piston moveable in response to magnetic flux and a metallic element (92) being substantially aligned to the piston and including one end positioned apart from and adjacent to the spring forming part of the magnetic flux path, and another end in contacting engagement with the metallic strap.

REFERENCES:
patent: 3108777 (1963-10-01), Ray
patent: 3295079 (1966-12-01), Brown
patent: 3331042 (1967-07-01), Erickson et al.
patent: 3757263 (1973-09-01), Saarem et al.
patent: 3929315 (1975-12-01), Rieth
patent: 4238110 (1980-12-01), McCabe
patent: 4320781 (1982-03-01), Bouvet
patent: 4445528 (1984-05-01), Miki et al.

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