Fast-acting electromagnetic solenoid valve
AssigneeKaiser Aerospace & Electronics Corporation
InventorJorge E. Iljin
Life of this patent
Estimating the term…
Abstract
The valve includes an electromagnet having a pole face inclined at an angle to a disk-shaped poppet or valve plate to define a wedge-shaped air gap therebetween. A peripheral housing surrounds the plate and extends between the pole face and a planar floor below the plate to define a chamber within which the plate is loosely captivated for pivotal movement about an edge of the plate disposed at the thin end of the gap. The floor contains a valve seat disposed toward the thick end of the gap so that the plate experiences its maximum stroke in the vicinity of the seat, thus resulting in a faster-acting valve for a given effective stroke length.
Claims14
An improved electromagnetic solenoid valve of the type which includes a valve seat, a planar valve plate of ferrous material moveable between positions of closing engagement and opening disengagement with the seat, biasing means for normally urging the plate into closing engagement with the seat, and an electromagnet having a pole face normally spaced apart from and facing the plate to pull the plate away from the seat when the electromagnet is energized, wherein the improvement comprises:
- the pole face being inclined relative to the valve plate such that a wedge-shaped gap is defined therebetween when said valve plate is spaced from said inclined pole face and said valve plate engages said valve seat, said gap having a thick end and a thin end;
- the valve plate being captivated for pivotal movement through the gap about a pivoting edge disposed at said thin end of said gap when the electromagnet is energized and said valve plate engages said inclined pole face with the gap now being formed between the valve plate and the valve seat for allowing passage of fluid therein and out through said valve seat;
- and
- the valve seat being disposed away from said pivoting end of the plate and toward said thick end of said gap, whereby the valve plate experiences its maximum stroke in the vicinity of the valve seat, thus resulting in a faster acting valve for a given effective stroke length.
A fast-acting electromagnetic solenoid valve, comprising:
- a valve seat comprising a circular floor having a fluid opening through it;
- a disk-shaped, magnetizable valve plate disposed above said floor and moveable between positions of closed engagement and open disengagement with said opening;
- means for biasing said valve plate into normally closed engagement with said opening;
- an electromagnet having a planar pole face disposed above said plate and inclined at an angle relative thereto such that a circular, wedge-shaped gap is defined therebetween when said valve plate is spaced from said inclined pole face and said valve plate engages said valve seat, said gap having a thick end disposed above said fluid opening and a thin end diametrically opposite thereto;
- a housing having walls extending circumferentially about said floor and said pole face and defining a chamber therebetween, said chamber acting to captivate said plate loosely therein for pivotal movement about an edge of said plate disposed at said thin end of said gap when the solenoid valve is energized and said valve plate engages said inclined pole face with the gap now being formed between the valve plate and the valve seat for allowing passage of fluid therein and out through said valve seat;
- and
- the valve seat being disposed away from said pivoting end of the plate and toward said thick end of said gap, whereby the valve plate experiences its maximum stroke in the vicinity of the valve seat, thus resulting in a faster-acting valve for a given effective stroke length.
Dependencies are inferred from the claim text.