Patent · US Active

Energy saving pump with multiple impellers

US9206814B2 · kind B2 · utility

2Cited by

3References

14Claims

0Family size

Assignee

HCL Technologies Limited · IN

Inventors

Madhusudan Rajam Satishchandra · Bengaluru, IN
Ashok Manohar Pujar · Bengaluru, IN
Karunakara Talawara · Bengaluru, IN
Sabari Giridharan Rajendran · Bengaluru, IN

Key dates

Filing date	Jun 15, 2010
Grant date	Dec 8, 2015
Priority date	—
Expiry date	Dec 12, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D15/029
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A centrifugal pump incorporates multiple impellers which are driven by a shaft at constant speed. To engage an impeller, a ball end rod is operated, which interacts with an integral structure which comprises a disc, connector or a support collar, and face gear as linking means. The integral structure is further coupled with the impeller. During engagement, a linking means which is mounted on the impeller and also on the integral structure get coupled together resulting in engaging the impeller for rotation. The impellers can be engaged and disengaged according to the flow requirements thereby saving the energy.

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