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. 02, 1987
Filed:
Nov. 18, 1985
Matsuyoshi Sugiyama, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
In the arrangement of a high-speed generator having its rotor shaft direct-coupled to the main shaft of a gas turbine engine, the upper space of a oil tank fixed to the generator communicates to a cavity formed between the high-speed generator and the air intake of the gas turbine engine, aside from the normal oil return path; and the cavity is open to the atmosphere through the upper space of the oil tank, thereby eliminating any difference in pressure between the cavity and the inside of the high-speed generator. With elimination of any pressure differences, the development of air flow at a tiny gap between the rotor and the stator of the high-speed generator can be avoided, resulting in successful prevention of oil leakage from the rotor bearing into the tiny gap and no drop in the efficiency of the high-speed generator.