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:
Nov. 23, 1976
Filed:
Jun. 10, 1974
Applicant:
Inventors:
Thomas E Ekstrom, Scotia, NY (US);
Richard L Koch, Scotia, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60L / ;
U.S. Cl.
CPC ...
290 17 ; 318148 ;
Abstract
A marine propulsion system includes a gas turbine, a generator, a motor and a fixed pitch propeller. Means are provided to operate the motor synchronously in the normal ahead and astern directions and to operate the motor asynchronously in the slow ahead and astern directions with the gas turbine operating at its idle setting. Means are also provided to brake the propeller before astern torque is applied when the power propulsion lever is rapidly moved from the normal ahead setting to the normal astern setting by operating the motor as a generator.