Importance

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Abstract

A compact staggered electromagnetically actuated valve assembly is disclosed. The assembly includes a first electromagnetic actuator defining an upper horizontal surface and an outer circumference and a second electromagnetic actuator defining a vertical axis and a lower horizontal surface. The second actuator lower horizontal surface is located vertically above the first actuator upper horizontal surface and the second actuator vertical axis is disposed outside of the first actuator outer circumference. An electromagnetically actuator for a valve having a valve stem exhibiting thermal expansion is further disclosed. The actuated valve includes an electromagnet and an armature element, the armature element having a normally biased spaced apart first position distal from the electromagnet when the electromagnet is off and a second position proximal from the electromagnet when the electromagnet is on. The valve includes seating springs that carry the electromagnet. The seating springs have a degree of thermal expansion substantially equal to the degree of thermal expansion of the valve stem. The valve may further include an armature element adjustment member that interacts with the armature element such that adjustment of the armature element adjustment member causes an axial displacement of the first position.

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First Claim