Authentic new MAP intake manifold absolute pressure sensor

Product description

When the engine is working, the vacuum degree, absolute pressure and output signal characteristic curve of the absolute pressure sensor in the intake manifold change with the throttle opening. The Type D injection system measures absolute pressure in the intake manifold behind the throttle. Under normal pressure conditions (standard atmospheric pressure is 101.3kPa), the higher the vacuum degree in the manifold, the lower the absolute pressure reflected in the manifold. Vacuum is equal to the difference between the atmospheric pressure in the manifold minus the absolute pressure. The higher the absolute pressure in the manifold, the lower the vacuum degree in the manifold. The absolute pressure inside the manifold is equal to the atmospheric pressure outside the manifold minus the vacuum. In other words, atmospheric pressure is equal to the sum of vacuum pressure and absolute pressure. When the engine is working, the smaller the throttle opening, the greater the vacuum degree of the intake manifold, the smaller the absolute pressure in the manifold, and the smaller the output signal voltage. The greater the throttle opening, the smaller the vacuum degree of the intake manifold, the greater the absolute pressure in the manifold, and the greater the output signal voltage. The output signal voltage is inversely proportional to the degree of vacuum in the manifold (negative property) and proportional to the absolute pressure in the manifold (positive property). Specializing in the manufacture of intake manifold absolute pressure sensor, refrigerant pressure sensor, common rail pressure transmitter, air compressor pressure transmitter, etc.