What is an automobile check valve? . Where is it installed?

Automobile one-way valve is a kind of one-way valve, which means that the fluid can only flow along the water inlet, but the medium at the water outlet cannot flow back. Check valves are also called check valves or check valves. Used in hydraulic system to prevent oil flow from flowing backwards, or used in pneumatic system to prevent compressed air from flowing backwards. The automobile one-way valve is installed at the outlet of the pump, which can prevent the influence of system pressure impact on the pump.

There are two kinds of check valves: straight-through type and right-angle type. Straight-through check valves are installed on threaded pipes. Right-angle check valves have three forms: threaded connection, plate connection and flange connection.

Extended data:

Automobile one-way valve mainly controls the exhaust gas involved in combustion, which is not only beneficial to environmental protection, reduces the emission of nitrogen oxides, but also ensures that the engine has enough power (if the exhaust gas involved in combustion is too large, the engine will not work well).

Keep the crankcase ventilated and the oil fresh. One-way valves also have a certain relationship with fuel economy. If the engine oil in the crankcase deteriorates, becomes dirty and blocks the check valve, the vacuum degree of the intake manifold will increase with the increase of the throttle opening.

Baidu encyclopedia-one-way valve