Diesel Kiki Co., Ltd.

Zexel Gmbh

Diesel Kiki K.k.

Masami Takemasa

Shinichi Ohi

Tadahiro Takahashi

Hiroshi Ohsawa

Yoshihide Gunji

Fuhito Umegaki

Tatsuo Haraguchi

Shinichi Ooi

The present invention offers a simple structure that facilitates the mounting of bearings, that maintains lubricating oil at a sufficient level in the bearing portions and that maintains an optimal distance between a rotor and a case housing for preventing freezing, for preventing reduction of the capacity and for preventing noise. Bearing stoppers provided between the bearings of the brushless motor and the bearing holders, which hold the upper end edge of each bearing, are secured at a projection formed at the internal circumferential surface of each bearing holder. A felt, which comes in contact with the lower portion of each bearing stopper and also comes in contact with the bearing at one side is provided, with holes communicating with the felt formed at the lower surface of the bearing stopper. In addition, the lower limit of the distance h between the lower end of the rotor and the upper end surface of the case housing is set at 1.5 mm. This prevents water from forming a connection between the rotor and the case housing due to capillary action and surface tension. In addition, the upper limit of the distance h is set at or under 8 mm, which represents the critical point for the capacity and the noise. This ensures that the capacity is maintained at a satisfactory level and also prevents noise from increasing. Moreover, a washer group, which comprises at least one each of a resin washer, a rubber washer and a POM (polyoxymethylene) washer is provided between a sensor magnet that is secured to the lower end of the rotating shaft and the lower bearing.

Brushless motor having lubrication system for upper and lower bearings

An air-conditioning equipment for a vehicle includes first and second local shutter control units each having a motor for moving a shutter, a drive circuit for driving the motor, a controlling device responsive to a heat load signal to control the drive circuit to thereby control the shutter in accordance with the heat load signal, and a blower control unit responsive to changes in opening of the shutter to control the rate of an air flow. Since separate shutter control units are provided, each shutter can be controlled independently, thus preventing all the air-conditioning functions from halting simutaneously otherwise occurred in conventional air-conditioning equipment having a central control unit or microcomputer.

Air-conditioning equipment for vehicle

When a power switch of a blower and a second mode switch are both turned on, a door at the exit of a deodorizer containing a volatile deodorant is opened to allow the deodorant to volatilize and diffuse into an air blast duct through a passage extending between the deodorizer and the duct, whereby the deodorant deodorizes the air to be blown into the passenger compartment. The second mode switch is any one of the power switch for the air conditioning system, the power switch for a driving device to open and close the door, and the mode switch to select a upward blower outlet.

Deodorizing device of an air conditioning system for automotive vehicles

Growing community of inventors

Konan, Japan

Masami Takemasa