Module of gas saving valve for mini engine

Abstract

An air throttle of a small engine comprises a casing, in which disposed a step-by-step motor, an air throttle position sensor ceramic foundation board and a PCB board, an air throttle position sensor rotor is disposed between the air throttle position sensor ceramic foundation board and the PCB board connected with the air throttle shaft directly, an intake pressure sensor pasted at the back the air throttle position sensor ceramic foundation board, a inspection hole disposed at the bottom of the intake pressure sensor, an air inlet temperature sensor at the back of the PCB board electric connected with the PCB board. The air throttle position sensor and the intake pressure sensor are connected electrically with the PCB board via a jumper wire and the step-by-step motor is connected electrically with the PCB board.

Description

technical field [0001] The invention relates to an air intake control device of an internal combustion engine, in particular to a small engine throttle module suitable for motorcycles or small-displacement automobiles. Background technique [0002] At present, the engine throttle of a vehicle generally adopts two control methods: electronic intelligent control and manual control. Electronic intelligent control is to intelligently control the opening of the throttle valve according to the driver's input command and the vehicle / road condition information collected by the on-board sensor, so as to optimize the engine speed and output torque, and achieve the best combustion and emission effects. Manual control is to connect the accelerator pedal of the vehicle with the valve plate of the engine throttle body through the transmission mechanism, and the driver can adjust the opening of the throttle by stepping on the accelerator pedal. Manual throttle control is difficult to achi...

AI Technical Summary

Problems solved by technology

The disadvantages of this kind of throttle are: large volume, low integration, and very irregular shape geometry; the position sensor, stepping motor and temperature sensor are arranged on the outside of the throttle body housing, so a separate housing is required Sealing protection, using independent connectors to realize electrical connection with the electronic control unit (ECU), which not only increases the cost of manufacturing and use, but also increases the probability of failure, and the installation is more complicated

An electronic control unit housing is connected to the outer side of the air inlet cavity wall of the electronic throttle body, the circuit board is fixed in the housing, and the positions of the temperature sensor, position sensor, pressure sensing element and other components are adjusted, but It occupies a relatively large installation position, and its compatibility with motorcycle engines is poor

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