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:
Feb. 05, 2008

Filed:

Jun. 30, 2006
Applicants:

Tomoki Fukushima, Wako, JP;

Yoshihisa Shinogi, Wako, JP;

Inventors:

Tomoki Fukushima, Wako, JP;

Yoshihisa Shinogi, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 19/00 (2006.01); F02D 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a failure detection system of coils that produce outputs in response to rotation of a crankshaft of a general-purpose engine (including a power coil that produces an output indicative of the engine speed), the outputs produced by the coils are inputted to determine whether the coils produce the outputs, and it is discriminated that one of the coils (i.e., power coil) has failed when the coil does not produce the output, thereby enabling detection of failure such as wire breaking of the power coil and preventing overrunning of the engine and other such problems.


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