US 5,799,499 A · Combined unit of expansion valve and reservoir tank

Abstract

A unit incorporating a reservoir tank and an expansion valve into a single built-in structure comprises a reservoir tank 10 sealed by a cover 20, and an expansion valve 30 fixed on the cover 20. A refrigerant pipe 40 extending through the cover 20 introduces a refrigerant from a compressor through a condenser into the reservoir tank 10. The refrigerant introduced into the expansion valve 30 through a pipe 50 increases in volume, and then enters an evaporator. After passing the evaporator, the refrigerant in the gaseous phase flows through pipe 62 into the expansion valve 30, then delivers thermal information of the refrigerant to a heat sensitive member of the expansion valve, and travels in a pipe 70 extending into and from the reservoir tank 10. While traveling along the pipe 70, the gaseous refrigerant exchanges heat with the liquid refrigerant stored in the reservoir tank, and then returns to the compressor.

Claims9

Dependent claims

A single structure unit for a refrigerating cycle including a compressor and an evaporator, said unit comprising:

an expansion valve;
and
a reservoir tank having a refrigerant supply pathway in which a gaseous refrigerant introduced from said expansion valve flows toward the compressor in said refrigerating cycle while exchanging heat with a liquid refrigerant stored in said reservoir tank, wherein said expansion valve is united with said reservoir tank.

Dependencies are inferred from the claim text.

Combined unit of expansion valve and reservoir tank

Life of this patent

Combined unit of expansion valve and reservoir tank

Life of this patent

Abstract

Claims9