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:
Feb. 08, 2022
Filed:
Mar. 08, 2018
Robert Bosch Gmbh, Stuttgart, DE;
Danfoss Commercial Compressors, Trévoux, FR;
Clement Martignago, Miserieux, FR;
Patrice Bonnefoi, Saint Didier au mont d'or, FR;
Stan Vandesteene, Lyons, FR;
Yves Rosson, Villars les Dombes, FR;
Robert Bosch GmbH, Stuttgart, DE;
Danfoss Commercial Compressors, Trévoux, FR;
Abstract
The centrifugal turbo-compressor () includes a hermetic casing; a drive shaft (); a first and a second compression stage () configured to compress a refrigerant and respectively including a first and a second impeller () connected to the drive shaft () and being arranged in a back-to-back configuration; an interstage sealing device provided between the first and second impellers (). The hermetic casing includes a main casing portion () in which are arranged the first and second compression stages () and the inter-stage sealing device. The first and second compression stage () respectively includes a first and a second aerodynamic member () each having an annular disc shape and respectively facing front-sides () of the first and second impellers ().