Engine protection method and apparatus, and engine power...

Details Engine protection method and apparatus, and engine power... Engine protection method and apparatus, and engine power...

2007-10-09

2007-10-09

Wolfe, Jr., Willis R. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S350000, C123S396000, C123S479000, C701S029000

Reexamination Certificate

active

10861591

ABSTRACT:
A method and an apparatus for protecting an engine are disclosed which are capable of preventing damage to the engine or associated parts thereof. The engine is provided with an electronic control fuel injection system. A quasi-abnormality of at least one of variables in connection with the engine and the associated parts thereof, such as an engine cooling water, a fuel pressure or the like is detected by a sensor. When the quasi-abnormality of the variable and such a quasi-abnormal state lasts for a predetermined period of time, a throttle opening of an electronic control throttle is regulated so as to limit an engine rotational speed to a low rate.

REFERENCES:
patent: 3923020 (1975-12-01), Gilligan
patent: 4474155 (1984-10-01), Sagues
patent: 4475502 (1984-10-01), Matsumoto
patent: 6349252 (2002-02-01), Imanishi et al.
patent: 6848956 (2005-02-01), Ozawa
patent: 7047943 (2006-05-01), Kanno
patent: 2004/0245034 (2004-12-01), Miyamoto et al.

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