Patent Number: 6,305,179

Title: Expansion valve of refrigerating cycle consisting of capacity variable compressor

Abstract: An expansion valve of a refrigerating cycle contains a compressor with variable capacity that hunts the flow of the refrigerant as soon as the expansion valve starts to open in a condition where the capacity of the compressor is varied. The variation of the cross-section of the passage of the refrigerant in the expansion over a selected amount of the moving stroke of a valve body of the expansion valve is less than the variation of the cross-section with another moving stroke amount of the valve body 53. The stroke section or stroke range with the reduced gradient of the variation of the cross-section extends between a position E in a fully closed state and a position F in a middle part of the opening stroke of the expansion.

Inventors: Hirota; Hisatoshi (Hachioji, JP)

Assignee: TGK Co., Ltd.

International Classification: F25B 41/06 (20060101); F25B 49/02 (20060101); F25B 041/04 ()

Expiration Date: 10/23/2018