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:
Jun. 09, 2020
Filed:
Jul. 28, 2016
Applicant:
Nuovo Pignone Tecnologie Srl, Florence, IT;
Inventors:
Leonardo Baldassarre, Florence, IT;
Andrea Cianti, Florence, IT;
Simone Amidei, Florence, IT;
Alberto Armenzani, Florence, IT;
Emanuele Rizzo, Florence, IT;
Assignee:
NUOVO PIGNONE SRL, Florence, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/12 (2006.01); F04D 29/10 (2006.01); F16J 15/34 (2006.01); F16J 15/40 (2006.01); F01D 25/22 (2006.01); F01D 25/12 (2006.01); F04D 29/58 (2006.01); F01D 11/04 (2006.01); F01D 11/00 (2006.01);
U.S. Cl.
CPC ...
F04D 29/124 (2013.01); F01D 11/04 (2013.01); F01D 25/125 (2013.01); F01D 25/22 (2013.01); F04D 29/104 (2013.01); F04D 29/584 (2013.01); F16J 15/3404 (2013.01); F16J 15/3484 (2013.01); F16J 15/406 (2013.01); F01D 11/003 (2013.01); F04D 29/102 (2013.01); F04D 29/122 (2013.01); F04D 29/5826 (2013.01); F05B 2240/57 (2013.01); F05D 2240/55 (2013.01); F16J 15/344 (2013.01); F16J 15/3436 (2013.01); F16J 15/3452 (2013.01);
Abstract
The shaft seal arrangement for a rotating turbomachine shaft having a rotation axis, comprises a rotor part and a stationary part. A dry gas seal is further provided, in combination with a cooling fluid volume arranged for receiving a cooling fluid and in heat exchange relationship with the dry gas seal. A venting arrangement collectively vents exhaust cooling fluid and dry sealing gas from the shaft seal arrangement.