Hydraulic Adjustment Principle of Dongan 4G93D Valve

The working principle of valve hydraulic tappet is realized by camshaft driving hydraulic tappet with more compact structure or directly driving valve rocker arm, which can automatically and continuously adjust oil content and stabilize tappet.

Valve position sensor, also known as throttle opening sensor or throttle switch, is usually used to detect the engine state and judge whether the engine is in idle working state or compound working state through detection. Through these working state signals, the fuel injection quantity of the engine is modified to control gasoline. The throttle position sensor is a constant variable resistor installed on the throttle. When the throttle is in the idle position, the idle contact is closed, and the idle working state signal will be output to the computer. When the throttle is in other positions, the idle contact is opened, and the computer can identify the engine load through the signal sent by the throttle position sensor.