Two-cycle internal combustion engine

Details Two-cycle internal combustion engine Two-cycle internal combustion engine

1990-10-11

1991-09-17

Okonsky, David A.

Internal-combustion engines

Poppet valve operating mechanism

Spring

123188SA, F16F 1300

Patent

active

050484761

ABSTRACT:
A two-cycle, internal combustion engine utilizing a stepper motor to vary tension on an air intake valve. An air pump forces air through the valve but is opposed by forces due to a spring on the valve and pressure in the cylinder. By varying the compression of the spring, the stepper motor causes the valve to open for varied amounts of time thus controlling air flow into the cylinder according to operating conditions. The stepper motor, ignition timing and fuel injection are a controlled by an electronic control system.

REFERENCES:
patent: 1029685 (1912-06-01), Huff
patent: 1928678 (1933-10-01), Sjolander
patent: 3853102 (1974-12-01), Myers et al.
patent: 4312494 (1982-01-01), Aoyama

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