Patent ID: 8490885
Filing Date: 2013-07-23
Classification: F16K,F24D,F24S,Y02A,Y02B,Y10T

Abstract:
1. A thermally actuated valve with integrated pressure relief comprising: a housing defining an inlet, an outlet, and a cavity having a longitudinal axis disposed between and in fluid communication with said inlet and outlet, said housing defining a first bore aligned with said longitudinal axis and in fluid communication with said outlet; an actuator disposed in said cavity and having a variable axial length between a first end and a second end, said actuator responsive to changes in temperature in said cavity to generate an axial force F a pressure sensitive valve arranged in said pressure relief fluid flow path, said pressure sensitive valve having a closed position preventing fluid communication between said cavity and said outlet at cavity pressures below a predetermined pressure P and an open position allowing fluid communication between said cavity and said outlet at cavity pressures above said predetermined pressure P; a seal between said plunger and said first bore, said seal arranged to prevent fluid communication between said cavity and said outlet when said plunger is received in said bore; a return member engaged with said actuator to bias the actuator and plunger away from said bore with a bias force F wherein said pressure sensitive valve is contained within and moves with said plunger, said axial force F