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:
Oct. 29, 2019

Filed:

Apr. 20, 2017
Applicant:

GE Avio S.r.l., Rivalta di Torino, IT;

Inventors:

Michele Gravina, Minervino Murge, IT;

Federico Dellavalle, Pinerolo, IT;

Elio Perona, Cafasse, IT;

Assignee:

GE Avio S.r.l., Rivalta di Torino, IT;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 57/04 (2010.01); F02C 7/36 (2006.01); F16H 57/08 (2006.01); F16H 1/28 (2006.01); F02C 7/06 (2006.01); F01D 15/12 (2006.01); F01D 25/18 (2006.01);
U.S. Cl.
CPC ...
F16H 57/0424 (2013.01); F02C 7/06 (2013.01); F02C 7/36 (2013.01); F16H 1/28 (2013.01); F16H 57/043 (2013.01); F16H 57/0427 (2013.01); F16H 57/0479 (2013.01); F16H 57/0482 (2013.01); F16H 57/0486 (2013.01); F16H 57/082 (2013.01); F01D 15/12 (2013.01); F01D 25/18 (2013.01); F05D 2260/40311 (2013.01);
Abstract

An oil transfer unit has a rotating part, a stationary part provided with an oil mouth, and a floating part having a support body coupled to the stationary part; the floating part has an annular pad, that is distinct from the body and is provided with a cylindrical surface fitted onto an outer cylindrical surface of the rotating part in a non-contact configuration, with an annular groove provided between the pad and the rotating part to put the oil mouth into communication with an inner chamber of the rotating part; both sides of the groove are sealed by a hydrostatic seal between the cylindrical surfaces; an angular retaining constraint is provided to retain angularly the pad with respect to the body; at least one element is breakable or plastically deformable to release the angular constraint when the torque transferred to the body, in use, exceeds a defined threshold.


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