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.

Date of Patent:
Jun. 15, 2010

Filed:

Nov. 14, 2005
Applicants:

Shuichi Umezawa, Tokyo, JP;

Junichi Okada, Tokyo, JP;

Inventors:

Shuichi Umezawa, Tokyo, JP;

Junichi Okada, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A process quantity measurement method with which an engine output is accurately measured in a relatively simple manner. Torque of an engine is measured based on the amount of torsion of the output shaft of the engine, and an engine output is obtained based on the measured torque. On the other hand, an engine output is calculated based on input and output heat quantity, and a difference between the engine output based on the torque and the engine output based on the input and output heat quantity is obtained in advance. When the engine is operated, the previously obtained difference is added to the engine output that is based on the calculated input and output heat quantity to obtain the engine output.


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