Patent ID: 6532764
Filing Date: 2003-03-18
Classification: F25B

Abstract:
An expansion value for controlling the degree of supercooling comprising:a valve seat in a refrigerant passage upstream of a throttling portion formed by thinly throttling the middle of the refrigerant passage through which a refrigerant is sent to an evaporator; a valve body for closing/opening said refrigerant passage arranged opposite to said valve seat in a state of an exerting force from a downstream side of said valve seat by force exertion means, said refrigerant being subjected to adiabatic expansion in a state where the degree of supercooling upstream of said valve seat becomes constant and said refrigerant is sent towards said evaporator; and and exertion force adjusting member for finely adjusting the exertion force of said force exertion means, said exertion force adjusting member being formed with said throttling portion and being forced as a press-in member pressed in axially and fixed to and retained in an inner periphery of said refrigerant passage by a press-fit in axial direction in a proper position to adjust the exertion force to a desired value.