Device for controlling number of operating cylinders of an inter

Details Device for controlling number of operating cylinders of an inter Device for controlling number of operating cylinders of an inter

1995-06-02

1996-10-08

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

123571, 123198F, F02M 2507

Patent

active

055620850

ABSTRACT:
A device for controlling a partial number of engine cylinders employs a geneva movement, intake-air-cutoff valves, an exhaust-gas-cutoff valve and a DC motor. The geneva movement divides the driving force of the DC motor into two: a force intermittently driving the intake-air-cutoff valves and a force driving the exhaust-gas-cutoff valve, so that the exhaust-gas-cutoff valve cannot open until the intake-air-cutoff valve has closed when the engine operation is changed over to a partial-cylinder-operation mode, and the intake-air-cutoff valve cannot open until the exhaust-gas-cutoff valve has closed when the engine operation is changed over to the full-cylinder-operation mode. As a result, time required for changeover of the engine operation between the full-cylinder operation and the partial-cylinder operation is minnimized and additional driving unit is omitted.

REFERENCES:
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patent: 4561408 (1985-12-01), Jenkins

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