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:
Sep. 08, 1992
Filed:
Sep. 11, 1991
Adam N Pope, Cincinnati, OH (US);
General Electric Company, Cincinnati, OH (US);
Abstract
A hydro-lift seal for the bore region of a seal segment having a shallow groove inlet on the high pressure side of the seal segment. The shallow groove inlet is aerodynamically connected to a shallow groove which extends in the direction of rotation of a seal race, the seal race being connected to a rotating shaft. The shallow groove is aerodynamically connected to a deep groove which has an interface region which is perpendicular to the shallow groove and a region which is parallel to the shallow groove. A vent groove located on the low pressure side of the seal segment is parallel to that region of the deep grove which is parallel to the shallow groove. A plurality of venting holes is located in the vent groove which connect the vent groove to the high pressure side of the seal segment.