Fuji Jukogyo Kabushiki Kaisha

Masahiro Ozawa

Shuji Sawafuji

Hiroshi Yoshikawa

A belt tensioner has a shaft having an oil reservoir in a lower portion thereof and having an external thread and rotatably mounted in a body, a torsion spring provided between the body and the shaft so as to urge the shaft in a rotational direction, and a cylindrical rod having an internal thread engaged with the external thread of the shaft. A lower end of the rod being projected from the body so as to be operatively connected to a tension pulley for a belt. The torsion spring and both the threads are arranged to project rod by the rotation of the shaft urged by the torsion spring. An oil passage is provided in the shaft so as to communicate the oil reservoir with the bore above the internal thread of the rod.

Automatic belt tensioner

A cylinder head is disclosed which can reduce external connections between engine exhaust ports and an exhaust conduit having an exhaust purifier. The cylinder head comprises a casting block formed with a plurality of exhaust ports, with a common port and with a plurality of passages communicating at one end with the common port. Each of the passages communicate with one of the exhaust ports.

Growing community of inventors

Fuchu, Japan

Masahiro Ozawa