Electrically motorized pump having a submersible sleeve bearing
AssigneeMinebea Co., Ltd.
InventorsKazuo Hokkirigawa, Motoharu Akiyama, Morinobu Kawamura
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Abstract
The electrically motorized pump has a low energy loss because it uses of the shaft and the sleeve made from synthetic resin composition obtained by uniformly dispersing fine powder of RBC or CRBC in a resin. The typical process for the production of a synthetic resin composition for making the sleeve bearing for the pump for use in water includes kneading with a resin the fine powder of RBC or CRBC at a temperature in the neighborhood of the melting point of the resin, and thereby uniformly dispersing the fine powder of RBC or CRBC in the resin. Fibers, such as glass fibers, may be blended with the fine powder of RBC or CRBC and the resin.
Claims22
An electrically motorized pump for use in a fluid comprising:
- a motor;
- a pump coupled to the motor;
- and
- at least one sleeve bearing that rotatably supports the motor or the pump, wherein a portion of the sleeve bearing is made of a synthetic resin composition obtained by uniformly blending powder of RBC or CRBC with a resin.
Dependencies are inferred from the claim text.