Aisin Seiki Kabushiki Kaisha

Kenichi Komai

Atsutoshi Ikegawa

Atsushi Chiba

Yojiro Koga

Yoshiaki Nakano

Megumi Onozuka

Kazuma Sasanami

Realized is a water pump having improved readiness of maintenance. The water pump includes a first unit having a rotatably driven drive shaft and a second unit having a partition wall and configured to circulate cooling medium in association with rotation of the drive shaft. The first unit and the second unit are connectable to and detachable from each other. The partition wall defines an insertion hole for the drive shaft. In this arrangement, there is provided a closing member for closing the insertion hole of the partition wall when the first unit is detached from the second unit.

Water pump

A water pump includes an impeller, a whirl chamber, a pump body including the impeller and the whirl chamber, a cover case portion and a gasket portion being positioned between the pump body and the cover case portion. The cover case portion is formed with an inlet flow passage in which a fluid is introduced to the whirl chamber and an outlet flow passage in which the fluid is discharged from the whirl chamber. The gasket portion is formed with an inlet hole opening from the whirl chamber to the inlet flow passage and an outlet hole opening from the whirl chamber to the outlet flow passage. The gasket portion includes a portion covering at least one of the inlet flow passage and the outlet flow passage in a state where the portion of the gasket portion is exposed by not being in contact with the pump body.

An electromagnetic clutch includes a base portion, a driving member, a driven unit including an output shaft, and an electromagnetic solenoid. The driving member, the driven unit, and the electromagnetic solenoid are assembled on the base portion. The driven unit includes an intermediate member that engages with the output shaft to transmit a torque while being relatively moved towards a rotational axis, the intermediate member being magnetically attracted to the base portion. The driven unit also includes a rotation member that is biased towards the driving member and that is pivotally supported to transmit a rotation of the driving member to the output shaft, a guide mechanism that causes the rotation member to be separated from the driving member while the intermediate member is restrained from moving by being magnetically attracted, and a holding mechanism holding a position of the rotation member that is separated from the driving member.

Growing community of inventors

Toyota, Japan

Kenichi Komai