Aisin Seiki Kabushiki Kaisha

Toyoki Furuhashi

Yoshihiro Naito

Koichi Nakayama

Atsuyuki Miura

A vacuum pumping apparatus includes a pump housing and a motor housing The housings and are fastened together so as to be a sealed structure by O-rings interposed therebetween. A shaft of a driving device and a driving shaft carrying a rotor are detachably connected via a coupling During operation of the apparatus, a rotor chamber in the pump housing and a motor chamber in the motor housing are equalized in pressure, which requires no mechanical seal therebetween. The coupling facilitates easy removal or detachment of a motor part B from a pump part A, which results in convenient maintenance of the pump part A.

Growing community of inventors

Toyota, Japan

Toyoki Furuhashi