Patent ID: 7958865

Claim:
An engine intake control system comprising: an intake passage leading to an intake port of an engine; and an electric motor disposed on one side of a throttle body which rotatably supports a valve shaft of a throttle valve for opening and closing the intake passage, an output shaft of the electric motor being connected to the valve shaft through a speed reduction device for reducing the rotation of the output shaft and transmitting it to the valve shaft, wherein the system further comprises a transmitting case including a first case half integrally formed on one side of the throttle body, and a second case half coupled to the first case half; wherein a first assembly is constructed by disposing a final gear inside the first case half and securing it to one end of the valve shaft; wherein a second assembly is constructed by mounting on the second case half the electric motor and an intermediate gear of the speed reduction device for transmitting the rotation of the output shaft of the electric motor to the final gear; wherein the first case half and the second case half are coupled to each other to connect together the first and second assemblies, and wherein the intermediate gear and the final gear are meshed with each other.