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:
Aug. 12, 2014
Filed:
Jul. 13, 2009
Jean-francois Bertea, Saint Jean de Muzols, FR;
Gerard Vuillerod, Grenoble, FR;
Jean-Francois Bertea, Saint Jean de Muzols, FR;
Gerard Vuillerod, Grenoble, FR;
Alstom Renewable Technologies, Grenoble, FR;
Abstract
This hydraulic machine comprises a wheel supported by a shaft (), the wheel and the shaft being able to rotate about a vertical axis (X) while a radial hydrostatic or hydrodynamic bearing () is formed between, on the one hand, a radial peripheral surface () of the shaft and, on the other hand, an internal radial surface () of a member () that is fixed relative to the vertical axis. The bearing () extends between two edges () which, in normal operation, constitute regions for the removal of a film of water formed in the bearing. At least one cavity () is created in the fixed member () and opens onto its internal radial surface () near a first edge () of the bearing. The machine comprises means () for placing the cavity () in fluidic communication with a volume (V) situated outside the bearing near the second edge () of the bearing (). That allows some (E) of the film of water from the bearing () to be removed towards the second edge () if the bearing becomes obstructed near the first edge ().