Patent · US Active

Oil-lubricated rotary vane vacuum pump

US11767845B2 · kind B2 · utility

0Cited by

3References

9Claims

0Family size

Assignee

Gebr. Becker GmbH · DE

Inventors

Artjom KRAFT · Bochum, DE
Ulli Kriebel · Solingen, DE
Bernhard Radermacher · Viersen, DE
Carsten Bender · Dresden, DE
Carsten Posser · Oberhausen, DE

Key dates

Filing date	Mar 4, 2020
Grant date	Sep 26, 2023
Priority date	—
Expiry date	Nov 19, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C2240/30
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An oil-lubricated rotary vane vacuum pump includes a rotary vane unit, having a rotary vane chamber and a rotary vane rotor, and an oil separator device having an air/oil separating unit that has a filter element with a plug-in ring that can be plug-connected on a housing side. The plug-in ring is designed for radial sealing and axial displaceability in a housing receptacle. The filter element has a moulding for bayonet mounting, which faces the end associated with the outer wall. A mounting wall of the housing, extending at a distance from the outer wall of the housing, is designed to interact with the moulding of the filter element and to form the bayonet mounting. A separate cover closes a mounting opening associated with the filter element in the outer wall of the housing. The cover form-fittingly interacts with the filter element to secure the filter element against rotation.

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