Patent · US Active

Centrifugal pump

US8425205B2 · kind B2 · utility

8Cited by

37References

12Claims

0Family size

Assignee

JOHNSON ELECTRIC S.A. · CH

Inventors

Min Li · Nanhu, CN
Cheng Zhuang Zhu · Nanhu, CN

Key dates

Filing date	Jun 18, 2010
Grant date	Apr 23, 2013
Priority date	—
Expiry date	Apr 7, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/445
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A centrifugal pump has a pump unit and a drive unit. The pump unit includes a volute and an impeller disposed in the volute. The drive unit has a stator and a rotor having a shaft. The volute includes an inlet, an outlet and a chamber in communication with the inlet and outlet. The inlet is coaxial with the chamber. The shaft of the rotor extends into the chamber of the volute and the impeller is attached to and driven by the shaft. The volute further includes a baffle installed in the inlet. The baffle includes a guide plate angled to the axis of the inlet.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.