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. 22, 1992
Filed:
Dec. 26, 1990
Robert C White, San Diego, CA (US);
Sundstrand Corporation, Rockford, IL (US);
Abstract
A starting system (10) for a gas turbine (24) in accordance with the invention includes an electric motor (14); and a clutch (20) having an input (18) for receiving torque from the electric motor when the electric motor is activated during starting of the turbine and an output (22) for rotating the gas turbine during starting of the turbine, the clutch having a torque transfer characteristic between the input and the output with no torque being transferred when a rotational speed of the input is below a set speed which is a fraction of a speed at which the gas turbine is self-sustaining in producing output torque and transferring torque above the set speed between the input and output with the set speed being chosen with respect to a power output characteristic of the electric motor as a function of speed of the motor which produces acceleration of the motor to self-sustaining speed while minimizing energy required for starting.