Fujikoki Corporation

Denso Corporation

Masaki Tomaru

Sadatake Ise

Masayuki Takeuchi

Yoshitaka Tomatsu

Yoshiyuki Kume

Hisashi Asano

Masaharu Itoh

Hiroshi Kainuma

Akinori Fujisawa

Provided is a variable-capacity compressor control valve that can suppress a decrease in the efficiency by reducing the amount of leakage in the valve without requiring severe accuracy of the components, avoid possible operation failures, and suppress the influence on the sliding resistance as well as the influence on the control characteristics. A main valve element of a valve element or a valve body is provided with a flexible or elastic sealing member. The sealing member is adapted to, when the valve orifice is closed by the main valve element, abut an end portion on the higher pressure side in a gap between sliding surfaces that is formed between the main valve element and a guide hole into which the main valve element is adapted to be slidably fitted and inserted, and thus seal the gap between the sliding surfaces.

Variable-capacity compressor control valve

A pressure control valve, which has a main valve for control, capable of opening and closing a valve hole by means of a diaphragm, and controls the pressure of a fluid by the agency of the main valve for control, comprises a non-return auxiliary valve located around the main valve for control so as to be coaxial therewith. The non-return auxiliary valve includes a cylindrical portion to be guided by a valve guard body having the valve hole therein and an annular rib extending outward from one end of the cylindrical portion. The rib can engage an auxiliary-valve seat on an outlet-side case.

Pressure control valve

A pressure adjusting valve for a variable capacity compressor comprising a main body portion provided with a lower lid, a spring case provided with an upper lid, and a diaphragm held between the upper lid and the lower lid. The upper lid and lower lid are hermetically connected with each other through caulking and soldering. Alternatively, the upper lid and the lower lid are hermetically connected with each other by means of an electron beam welding.

Pressure adjusting valve for variable capacity compressors

Growing community of inventors

Tokyo, Japan

Masaki Tomaru