Internal combustion engine negative pressure sensor
A technology of negative pressure sensor and internal combustion engine, which is used in internal combustion engine testing, fluid pressure measurement involving magnet displacement, etc., can solve problems such as low signal sensitivity and accuracy, and cannot reflect internal combustion engine load changes, and improve synchronization and accuracy. , The effect of reducing the phenomenon of malfunction, and improving the accuracy and sensitivity of the action
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[0013] The present invention will be described in further detail below in conjunction with accompanying drawing and specific embodiment:
[0014] In Figure 1, body 1, spring seat 2, soft spring 3, spring joint 4, diaphragm 5, adjusting nut 6, adjusting screw 7, small nut 8, large nut 9, wire 10, circuit board 11, end cover 12 , Gasket 13, Hall element 14, magnet 15, hard spring 16, damping hole 17, air hole A1, negative pressure chamber B1, stabilizing chamber C1, normal pressure chamber D1.
[0015] Referring to Fig. 1 , the internal combustion engine negative pressure sensor has an air hole A1 on the body 1 which communicates with the intake pipe of the internal combustion engine, and a diaphragm 5 is arranged on the body 1, and the body 1 and the end cover 12 are connected to form a housing, between the body 1 and the end cover 12 Diaphragm 5 is provided, and diaphragm 5 divides its two ends into stable chamber C1 and normal pressure chamber D1. There is a small hole on the...
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