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. 15, 2016

Filed:

Nov. 03, 2008
Applicants:

Alfred Markwalder, Wuerenlos, CH;

George Kleynhans, Buelach, CH;

Urs Baumann, Seuzach, CH;

Inventors:

Alfred Markwalder, Wuerenlos, CH;

George Kleynhans, Buelach, CH;

Urs Baumann, Seuzach, CH;

Assignee:

MAN Diesel & Turbo SE, Augsburg, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/42 (2006.01); F04D 17/12 (2006.01); F04D 29/051 (2006.01);
U.S. Cl.
CPC ...
F04D 29/4206 (2013.01); F04D 17/125 (2013.01); F04D 29/0516 (2013.01);
Abstract

A flow machine () has an outer housing () with an inner housing (), particularly a guide blade carrier, arranged therein and a rotor shaft () which is situated in the latter, a cover () which is fastened to the outer housing () and separates an inlet pressure (p) in the interior of the outer housing () from an ambient pressure (pu) outside the outer housing, and a compensating piston seal () for sealing an outlet pressure (p) in a work space, particularly compression space (), defined between the rotor shaft () and the inner housing () against the inlet pressure (p) in a noncontacting manner. The compensating piston seal () is fastened to the cover ().


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