Kabushiki Kaisha Saginomiya Seisakusho

Akira Kasai

Toshihiro Teranishi

Noboru Nakagawa

Mitsuo Sugita

Kazushige Suzuki

Mitsuaki Noda

Kazuo Hirata

Michiaki Ohno

Fumio Kanasaki

Kazunori Aihara

Morio Kaneko

Yasumasa Takada

Takashi Hirakawa

Masahiro Murata

Kaori Yokota

A bottom wallof a valve chamberof an electric switching valveincludes a laminated structure having a bottom coverto which pipe fittingsare connected; a valve seaton which the valve portsC,D are opened and which an end wall of the valve bodyslidably contacts; an intermediate plateinterposed between the bottom coverand the valve seatwith communication openingsD,E for connecting the pipe fittingsto the valve portsC,D. At least one of the valve portsC,D is biased toward a rotation center of the valve bodyagainst the center of the corresponding pipe fitting

Electrically operated switch-over valve

In order to realize higher compatibility of high-performability and energy saving of a refrigerator-freezer, a valve housing having one inlet port normally communicating with a valve chamber and first and second outlet ports B, C opening on a bottom face of the valve chamber, a valve body rotatably provided in the valve chamber and having a partition wall portion on its end face facing a bottom face of the valve chamber, to partition the end face into an opening area communicated with the valve chamber and a non-opening area not communicating with the valve chamber, and an electric actuator to steppingly turn the valve body are provided for an electrically operated selector valve used in a refrigerating cycle unit for the refrigerator-freezer, and the position of the valve body is changed by four positions A-D.

Motor-operated selector valve and refrigerating cycle device for refrigerator-freezer

In a rotary flow-path exchanging valve, the magnetic force generated in a pair of main magnetic pole pieces (66) by energization of an electromagnetic solenoid is acted on a multi-pole magnet (71) of a main valve element accommodated within a valve housing (1) so that the main valve element (3) is rotated to exchange a flow-path. The multi-pole magnet (71) is made of a plastic magnet of plastic material mixed with magnetic powder. The main valve element (3) and multi-pole magnet (71) are integrally formed by multiple molding. A pair of main magnetic pole pieces (66) magnetically connected to one polarity of the electromagnetic solenoid (11) are arranged. A pair of auxiliary magnetic pole pieces (70) connected to the other polarity of the electromagnetic solenoid (11) are arranged at positions out of phase from the magnetic pole pieces by 90.degree.. The pair of auxiliary magnetic poles (70) are opposed to portions of the multi-pole magnet (71) having a reverse polarity to that of portions of the multi-pole magnet (71) opposite to the main magnetic poles (66).

Rotary flow-path exchanging valve

In a rotary flow-path exchanging valve, the magnetic force generated in a pair of main magnetic pole pieces 66 by energization of an electromagnetic solenoid is acted on a multi-pole magnet 71 of a main valve element accommodated within a valve housing 1 so that the main valve element 3 is rotated to exchange a flow-path. The multi-pole magnet 71 is made of a plastic magnet of plastic material mixed with magnetic powder. The main valve element 3 and multi-pole magnet 71 are integrally formed by multiple molding. A pair of main magnetic pole pieces 66 magnetically connected to one polarity of the electromagnetic solenoid 11 are arranged. A pair of auxiliary magnetic pole pieces 70 connected to the other polarity of the electromagnetic solenoid 11 are arranged at positions out of phase from the magnetic pole pieces by 90.degree.. The pair of auxiliary magnetic poles 70 are opposed to portions of the multi-pole magnet 71 having a reverse polarity to that of portions of the multi-pole magnet 71 opposite to the main magnetic poles 66.

Growing community of inventors

Saitama, Japan

Akira Kasai