Patent · US Active

Vacuum pump with a lubricant pump

US7959423B2 · kind B2 · utility

1Cited by

13References

7Claims

0Family size

Assignee

PFEIFFER VACUUM · FR

Inventors

Martin Eilers · Marburg, DE
Michael Willig · Ludwigsburg, DE

Key dates

Filing date	Nov 12, 2008
Grant date	Jun 14, 2011
Priority date	—
Expiry date	Jan 13, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16C2360/45
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A vacuum pump includes a quick-rotatable component a bearing for supporting the quick-rotatable component and a lubricant pump for feeding lubricant to the bearing and having a rotor, with the bearing and the lubricant pump forming parts of a closed lubrication circuit having a hollow axle on which the rotor of the lubricant pump is rotatably supported.

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