Patent · US Active

Pump device with a vacuum pump and a lubrication pump

US10119541B2 · kind B2 · utility

0Cited by

14References

8Claims

0Family size

Assignee

Joma-Polytec GmbH · DE

Inventors

Andreas Blank · Hechingen, DE
Torsten Helle · Bingen, DE
Martin Thoma · Munich, DE

Key dates

Filing date	Nov 4, 2014
Grant date	Nov 6, 2018
Priority date	—
Expiry date	Aug 25, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C2220/10
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A pump device having a drive shaft which has a drive section that can be coupled with a drive system. The pump device includes a vacuum pump that can be driven by the drive shaft. The vacuum pump includes a rotor and at least one blade that can be moved in radial direction in the rotor and that divides pressure chambers. The pump device also includes a lubrication pump that can be driven by the drive shaft. The vacuum pump is arranged between the drive section and the lubrication pump. A locking device is provided between the rotor and the lubrication pump in which, when activated, the at least one blade remains in a radially internal position when the rotor is rotating.

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