Saginomiya Seisakusho, Inc.

Kabushiki Kaisha Saginomiya Seisakusho

Seiichi Nakano

Daiichiro Kemmotsu

Yutaka Koyama

Masahiro Murata

Ryo Mitome

Taiki Nakagawa

Hideki Sekiguchi

Yasuo Komiya

Tokuji Yatsui

Coil assembly for a solenoid valve

A centrifugal pump includes a rotating blade member including an impeller member and a rotor magnet, a main body casing accommodating the rotating blade member, a coil portion that rotates the rotating blade member is located on a periphery of the rotor magnet, and an axial member associated with the main body casing. The rotating blade member pivots around the axial member. The axial member includes an end portion at axial rotor magnet side, and is fixed at the end portion. The main body casing forms a fluid introducing passage, and is associated with a blade casing accommodating the rotating blade member. An end portion of a bearing portion at an axial fluid introducing passage side is protruded such that the end portion of the bearing portion protrudes from an inner periphery opening portion of the blade casing into the fluid introducing passage.

Centrifugal pump

A centrifugal pump includes a main body casing. The main body casing includes an upper main body casing, a lower main body casing fixed to the upper main body casing, and a blade casing. In the blade casing, an interior space Sformed by the upper main body casing and the lower main body casing is partitioned, and a fluid introducing passage is formed on the upper portion and a rotating accommodating space Sto accommodate the rotating blade member is formed on lower portion. A joint portion of the upper main body casing, the lower main body casing, and the blade casing is fixed on the state of sealing. A joint portion of the suction side coupling member and the main body casing and a joint portion of the discharge side coupling member and the main body casingare fixed on the state of sealing.

The present invention provides a motor-operated valve having no additional stopper for stopping the rotation of a rotor at fully open and closed states of the valve to allow a reduced number of parts of the valve and to prevent a noise otherwise generated by the abutment of the rotor against a stopper. The motor-operated valve includes a rotor having a shaft formed with an external thread The motor-operated valve also includes a needle valve element having a needle valve head at one end portion thereof and an internal thread engaging with the external thread at another end portion. The valve element has a joining portion for joining the valve head to the internal thread The motor-operated valve also includes a main valve body having a guide portion which stops the rotation of the valve element but allows the axial movement of the valve element. The shaft has an upper end supported by a supporting portion provided on a top wall of a valve housing while a lower end of the shaft is rotatably supported by a bearing secured to the main valve body.

Motor operated valve

Growing community of inventors

Sayama, Japan

Seiichi Nakano