Two-port solenoid valve

Details Two-port solenoid valve Two-port solenoid valve

2011-06-14

2011-06-14

Fristoe, Jr., John K (Department: 3753)

Valves and valve actuation

Electrically actuated valve

Including solenoid

C251S129150

Reexamination Certificate

active

07959129

ABSTRACT:
A first cap is mounted at a movable iron core, a second cap holding a valve member is fitted to the first cap, capable of displacement, an biasing force F1of an iron-core return spring biasing the movable iron core toward an initial position and an biasing force F2of a buffer spring interposed between the movable iron core and the valve member are set so as to have a relation of F1>F2, and when the movable core is located at the initial position, gaps x, y are interposed between the valve member and a regulating portion of the second cap and between an engagement projection portion of the second cap and a front end wall of an engagement recess portion of the first cap, respectively.

REFERENCES:
patent: 5544857 (1996-08-01), Torrence
patent: 5810330 (1998-09-01), Eith et al.
patent: 2003/0102453 (2003-06-01), Fukano et al.
patent: 3-92687 (1991-04-01), None
U.S. Appl. No. 12/128,357, filed May 28, 2008, Matsumoto, et al.

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