Apparatus and method for successively inactivating the cylinders

Details Apparatus and method for successively inactivating the cylinders Apparatus and method for successively inactivating the cylinders

1976-09-16

1977-12-27

Myhre, Charles J.

Internal-combustion engines

Noncompression

123 32EH, 123 32EL, 123198F, F02B 300

Patent

active

040648443

ABSTRACT:
In a multi-cylinder fuel injection type internal combustion engine, apparatus is provided for successively inactivating one or more cylinders of the engine by inhibiting the injection pulses supplied to the fuel injection units in response to a sensed engine load. The apparatus includes a forward-backward counter which operates in downward count mode to decrease the number of active cylinders when light load is sensed and in forward count mode to increase the number of active cylinders when heavy load is sensed. A ring counter is provided to generate recylically occurring pulses on its output terminals equal in number to said cylinders successively in response to the occurrence of each injection pulse. A logic circuit is connected to the ring counter to generate injection inhibit pulses equal in number to the inactive cylinders.

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patent: 3866584 (1975-02-01), Bigalke et al.
patent: 4007590 (1977-02-01), Nagai et al.

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