Mitsubishi Heavy Industries Limited

Yohei Kakiuchi

Takeshi Okubo

Tatsuya Hidaka

Toshiyuki Osada

Yasuharu Yamamoto

It is an object to detect the axial position of a rotor without using a sensor. A method for detecting the position of a motor including a rotor and a stator around which armature windings of a plurality of phases are wound is provided, wherein a position detecting coil is disposed on one axial end face of a stator core, an induced voltage generated in the position detecting coil is detected, and the axial position of the rotor is detected on the basis of the detection result.

Motor position detecting method, motor driving unit, and pump

In order to optimize the clearances between both end surfaces of a sleeveand each of the end surfaces of the fixed bodiesand, respectively, magnetic forces of repulsion being caused by each of the permanent magnetsandis adjusted. At this time, by adjusting each of the distances between the permanent magnets, respectively, by adjusting the quantity of the adjustment rings, the magnetic force of repulsion being caused by each of the permanent magnetsandis adjusted.

Artificial heart pump with adjustable magnetic thrust bearing

By inserting a protruding portion (), which is installed to a center position of a rear end surface () of a fixed body (), into a hole (), which is provided to a center position of an end surface () on a side of a fixed body () of a fixed shaft () that is connected to a fixed body (), the fixed bodies () and () and the fixed shaft () are connected. As a result, a sleeve () can be removed only by dismantling the fixed body ().

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Takasago, Japan

Yohei Kakiuchi