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.

Date of Patent:
Nov. 26, 2024

Filed:

Nov. 20, 2019
Applicant:

Thermodyn Sas, Le Creusot, FR;

Inventors:

Benjamin Defoy, Le Creusot, FR;

Thomas Alban, Le Creusot, FR;

Assignee:

Thermodyn SAS, Le Creusot, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/58 (2006.01); F04D 19/02 (2006.01); F04D 29/051 (2006.01); F04D 29/08 (2006.01);
U.S. Cl.
CPC ...
F04D 29/584 (2013.01); F04D 19/02 (2013.01); F04D 29/0516 (2013.01); F04D 29/083 (2013.01);
Abstract

A balancing and sealing piston system for an integrated motor compressor is described. The system comprises a balancing piston designed to be mounted on a shaft of a motor compressor to compensate for the differential pressure applied to the impellers of the compression section of the motor compressor, and a sealing device surrounding the balancing piston and designed to be mounted on a case of the motor compressor to seal part of the compression section. The system further comprises a gas extraction port, the axial position of which is determined such that the pressure value of extracted gas is equal to a predetermined value that is less than the value of the discharge pressure.


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