Valves and valve actuation – Electrically actuated valve – Including solenoid
Patent
1995-07-26
1997-02-11
Lee, Kevin
Valves and valve actuation
Electrically actuated valve
Including solenoid
251 48, 251 50, F16K 3106
Patent
active
056012756
ABSTRACT:
A solenoid operated valve having a solenoid winding mounted on a valve housing formed with a valve chamber, an end closed sleeve concentrically assembled with the solenoid winding, a stationary element disposed within the end closed sleeve and mounted on the valve housing together with the end closed sleeve to form a fluid chamber in a closed end portion of the sleeve, the fluid chamber being communicated with the valve chamber through an axial bore of the stationary element, a movable element disposed within the fluid chamber to be moved toward the stationary element against a return spring loaded thereto when the solenoid winding is activated, a movable valve rod engaged at one end thereof with the movable element for movement therewith and extending into the valve chamber through the axial bore of the stationary element, a valve body disposed within the valve chamber to be moved by the valve rod, and a valve seat mounted within the valve chamber and located between an inlet passage and an outlet passage to be closed by the valve body, wherein a hydraulic damping mechanism is composed of an annular sealing member coupled with the movable element and slidably engaged with an internal surface of the end closed sleeve to form a damper chamber and an orifice formed in the movable element to provide a fluid communication between the damper chamber and the valve chamber.
REFERENCES:
patent: 2217141 (1940-10-01), Sprenkle
patent: 5118076 (1992-06-01), Homes
patent: 5401087 (1995-03-01), Goossens
patent: 5460350 (1995-10-01), Nagashima et al.
Aisin Seiki Kabushiki Kaisha
Lee Kevin
LandOfFree
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