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 8285471 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 09, 2012

Filed:

Jun. 14, 2010
Applicants:

Kouichi Sugiyama, Chiryu, JP;

Koji Ishizuka, Chita-gun, JP;

Inventors:

Kouichi Sugiyama, Chiryu, JP;

Koji Ishizuka, Chita-gun, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/30 (2006.01); G06F 17/40 (2006.01);
U.S. Cl.
CPC ...
Abstract

Data indicating a sudden change in a bulk modulus of fuel and data indicating a usage state and a usage environment of an injector as of occurrence of an injection abnormality are stored in EEPROM mounted in the injector. Thus, it can be analyzed whether a cause of a defect such as the injection abnormality is use of inferior fuel based on the data related to the bulk modulus. In addition, it can be analyzed whether the cause of the defect such as the injection abnormality is a severe usage state and a severe usage environment based on the data related to the usage state and the usage environment. Thus, the data useful for analyzing the cause of the defect related to the fuel injection can be provided.


Find Patent Forward Citations

Sugiyama, Kouichi. (2012). Data storage device (U.S. Patent No. 8285471). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8285471

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