Throttle actuator of internal combustion engine

Details Throttle actuator of internal combustion engine Throttle actuator of internal combustion engine

1988-10-18

1990-06-19

Kamen, Noah P.

Internal-combustion engines

Cooling

With cooling of additional parts or materials

123361, 310 54, F01P 106

Patent

active

049343416

ABSTRACT:
A throttle actuator for controlling a throttle valve disposed in the intake passage of an internal combustion engine in accordance with a signal representing the throttle opening demand. The throttle actuator has a rotary type acutator motor and a coolant pipe arranged in a portion of the actuator motor or in the vicinity of the actuator motor so that heat generated in the actuator motor is effectively absorbed by coolant which branches from the engine coolant line. The rotary type actuator motor can stably operated even under severe environment condition so as to prevent any decrease in the output torque and ensure improved precision and safety in the control of opening of the throttle valve.

REFERENCES:
patent: 4002185 (1977-01-01), Konczal
patent: 4739204 (1988-04-01), Kitamura et al.

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