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Title:
GOVERNING SIGNAL PREPROCESSOR FOR MAIN MACHINE
Document Type and Number:
Japanese Patent JPH03129505
Kind Code:
A
Abstract:
PURPOSE:To reduce variation in feeding quantity of fuel and to improve the efficiency of the fuel by constantly controlling the rotational frequency of a main machine by a governor only when the variation of load is large and usually regulating the fuel to be supplied to the main machine by a signal through an integrating circuit. CONSTITUTION:When the number of rotation of the main machine 1 is sharply changed by load variation due to the influence of a wave or the like and a suddenly changed signal 9 is inputted from a rotational frequency sensor 4 to a differential circuit 7, the circuit 7 converts the input signal 9 into a correction signal 10 to be increased at the time of load variation and outputs the signal 10 to the governor 6. When the rotational frequency of the main machine 1 is moderately changed and a moderately changed signal 11 is inputted from the sensor 4 to the integrating circuit 8, the circuit 8 converts the input signal 11 into an averaged correction signal 12 and outputs the signal 12 to the governor 6. Consequently, variation in the feeding quantity of fuel is reduced during the period of navigation in which load variation is small and the efficiency of the fuel can be improved.

Inventors:
YOSHIDA OSAMU
UTSUNOMIYA MASATOKI
NAKAJIMA TOSHIYUKI
Application Number:
JP26842789A
Publication Date:
June 03, 1991
Filing Date:
October 16, 1989
Export Citation:
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Assignee:
ISHIKAWAJIMA HARIMA HEAVY IND
International Classes:
G05D13/62; (IPC1-7): G05D13/62
Attorney, Agent or Firm:
Tsunemitsu Yamada (1 person outside)



 
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