Patent · US Active

Bearing face geometry for gear pump

US9677559B2 · kind B2 · utility

1Cited by

26References

23Claims

0Family size

Assignee

Hamilton Sundstrand Corporation (HSC) · US

Inventors

Weishun Ni · Rockton, US
Satish Shantilal Shah · Rockford, US
Timothy P. Walgren · Wales, US

Key dates

Filing date	Feb 25, 2011
Grant date	Jun 13, 2017
Priority date	—
Expiry date	Dec 17, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49236
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A bearing includes a bridge land geometry having a finger cut that defines a width ISW, a center of the width ISW displaced from a shaft axis a radial distance ISR, a ratio of ISW/ISR between 0.074-0.293, to reduce cavitation and pressure ripple.

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