Mikuni Adec Corporation

Norio Takehana

Kenichi Kubota

Noriaki Chiba

Takehiko Naiki

A lubricating oil supplying device allows for the oil discharge amount to be more finely controlled by provision of many outlet ports, and by reducing the influence of vibration. Therefore, a spool valve unit and a pump are separately formed. The spool valve unit includes an open-close spool valve and a solenoid for controlling operation of this spool valve. Plural inlet passages and an outlet passage are formed in the spool valve. The spool valve opens or closes the inlet passages, and oil from the pump is introduced into these inlet passages. One side of the outlet passage communicates with the inlet passages, and the other side communicates with an engine. A passage for introducing the oil from an oil tank to a pump chamber is formed in the solenoid. When the solenoid is turned &ldquo;OFF&rdquo;, communication between the return passage and the inlet passages is interrupted by the spool valve, and the oil is discharged from the pump to the plural inlet passages. The oil is discharged from the inlet passages to the engine via a check valve. When the solenoid is turned &ldquo;ON&rdquo;, the return passage communicates with the inlet passages through the spool valve, and the oil is returned to the pump via the return passage.

Lubricating oil supplying device

A fuel pump which has excellent heat resistance and salt resistance, is low in cost and light in weight, and which is free from fuel leakage. The fuel pump has a bottom body formed of a thermosetting resin such as bakelite material which has heat resistance and strength, and a top body and a cover formed of a thermoplastic resin. The top body and the cover are assembled with a seal member such as a gasket held between the top body and the cover, and the top body and the bottom body are fixed together by a fixing element. Thereby, the main body portions of the fuel pump are constituted of resin.

Growing community of inventors

Shizukuishi-machi, Japan

Norio Takehana