Patent ID: 8205855
Filing Date: 2012-06-26
Classification: F16K,G05D

Abstract:
1. An electric control valve, comprising: a valve gate comprising a body, a disengagement preventing sleeve, a restoring spring installed within the disengagement preventing sleeve, a magnetic ring contacted with an upper portion of the restoring spring, a piston within the body and a core connected to an upper end of the piston, the core being inserted into a core sleeve on the body, with a magnetic pillar being embedded within an upper portion of the core, and the magnetic ring being fitted with the magnetic pillar; and a control actuator comprising a middle seat, a setting part, a thermal sensitive element, a pushing rod and a memory spring; and wherein the thermal sensitive element is disposed within the middle seat, with an upper end of the thermal sensitive element being fixed by the setting part and two poles on the thermal sensitive element being connected to control terminals, respectively; wherein the thermal sensitive element is surrounded by the memory spring and the pushing rod from outside, with the pushing rod being located under the memory spring, and the thermal sensitive element is in clearance fit with the memory spring; wherein a lower end of the pushing rod extends through a notch of the middle seat and contacts with the magnetic ring of the valve gate; and wherein the control actuator further comprises a connecting part for connecting the control actuator and the body of the valve gate so as to fix the control actuator on the body of the valve gate.