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:
Dec. 19, 1989
Filed:
May. 06, 1988
Applicant:
Inventors:
Helmut Geidel, Karlsfeld, DE;
Alois Rohra, Munchen, DE;
Assignee:
Motoren- und Turbinen-Union Munchen GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C / ;
U.S. Cl.
CPC ...
60 3908 ; 4161 / ; 416174 ;
Abstract
A propfan turbine engine having a reduction gearing for the propfan rotors is provided with a lubricating system of its own for the reduction gearing, the system being arranged axially between the gas turbine and the reduction gearing and formed as an annular assembly surrounding a drive shaft from a gas turbine to the reduction gearing. Cooling air is supplied to the lubricating system as a location which will not interfere with the supply of air to the compressor of the gas turbine.