Fuel injection controlling device for two-cycle engine

Details Fuel injection controlling device for two-cycle engine Fuel injection controlling device for two-cycle engine

1989-12-11

1991-02-05

Argenbright, Tony M.

Internal-combustion engines

Two-cycle

Rear compression

123198D, 123479, 123481, F02D 1700, F02D 4126

Patent

active

049895540

ABSTRACT:
A fuel injection controlling device for a two-cycle engine includes an electronic fuel injection system having a fuel injection quantity determining device for determining a fuel injection amount in response to a rotational speed of said engine and a throttle opening. A misfire detecting device is provided for detecting a misfire condition of said engine. Further, a device is provided for decreasing the amount of fuel injection upon transition from a misfire condition to a fired condition. The misfire detecting device includes a sensor for detecting an internal pressure of an intake air path, a storage device for storing therein an output value of the sensor and data of an intake air path internal pressure in a predetermined operating condition of the engine upon normal combustion, and a comparison device for comparing the output value with data read out from the storage means to detect a difference in pressure. The misfire detecting device develops a misfire signal when the difference in pressure is greater than a predetermined value.

REFERENCES:
patent: 4006718 (1977-02-01), Konomi
patent: 4366793 (1983-01-01), Coles
patent: 4366794 (1983-01-01), Hachiga et al.
patent: 4886029 (1989-12-01), Lill et al.

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