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:
Mar. 10, 1987
Filed:
May. 31, 1985
Applicant:
Inventor:
Edward H Miller, Rexford, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
415168 ; 415115 ; 4151 / ;
Abstract
In a steam turbine having a wheel secured to a rotatable shaft by a key and cooperating keyway, a passageway provides steam flow communication between an axial end of the keyway and a first location on an axial end of the wheel. A channel provides steam flow communication between the other axial end of the keyway and a second location on the axial end of the wheel. The first and second location are preferably diametrically opposed. Steam may be directed to enter the passageway at the first location, flow along the keyway and channel and exit at the second location, thereby ventilating the key and keyway.