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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.:

US 4818890 B1

PDFFull Text
Date of Patent:
Apr. 04, 1989

Filed:

Nov. 12, 1987

Turbine helper drive apparatus

Applicant:
Inventors:

Tadao Mose, Tokyo, JP;

Akio Hirata, Tokyo, JP;

Suzuo Saito, Tokyo, JP;

Hidehiko Kikuchi, Kawasaki, JP;

Assignee:

Kabushiki Kaisha Toshiba, Kawasaki, JP;

Attorney:

Oblon, Fisher, Spivak, McClelland & Maier

Primary Examiner:

William M Shoop, Jr

Assistant Examiner:

Paul Ip

Int. Cl.
CPC ...
H02P / ; F01D / ;
U.S. Cl.
CPC ...
290 52 ; 290 / ; 290 17 ; 318802 ; 318808 ; 307 87 ; 322 40 ;
Abstract

A turbine helper drive apparatus includes a turbine for driving a load, a motor coupled to the turbine, and a power converter for controlling an output from the motor based on a predetermined power reference. The power converter controls the motor so that the motor performs either a motoring operation, wherein the motor drives the load together with the turbine, or a regenerating operation, wherein the motor serves as a load for the turbine to generate an electric power.

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Mose, Tadao. (1989). Turbine helper drive apparatus (U.S. Patent No. 4818890). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4818890

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