The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 2021
Filed:
Feb. 01, 2017
Applicant:
Pierburg Pump Technology Gmbh, Neuss, DE;
Inventors:
Assignee:
PIERBURG PUMP TECHNOLOGY GMBH, Neuss, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04C 29/12 (2006.01); F04C 18/344 (2006.01); F04C 25/02 (2006.01); F04C 29/06 (2006.01);
U.S. Cl.
CPC ...
F04C 29/128 (2013.01); F04C 18/344 (2013.01); F04C 25/02 (2013.01); F04C 29/065 (2013.01); F04C 29/126 (2013.01); F04C 2220/12 (2013.01); F04C 2250/20 (2013.01);
Abstract
A dry-running vane gas pump includes a pump housing which forms a pump chamber, a pump rotor with at least one displaceable slide element which pump rotor is rotatably supported in the pump chamber, at least one fluid inlet opening associated with the pump chamber, a first fluid outlet opening associated with the pump chamber, a second fluid outlet opening associated with the pump chamber, and a non-return valve which closes the first fluid outlet opening. The second fluid outlet opening is permanently open. The first fluid outlet opening is arranged before the second fluid outlet opening in a direction of rotation of the pump rotor.