Where is the intake manifold? What is this for? Thank you.

The automobile intake manifold is located in the engine compartment, between the throttle valve and the engine intake valve, and can be seen after opening the engine cover.

The function of intake manifold is to distribute the combustible mixture supplied by carburetor to each cylinder. The function of the exhaust manifold is to collect the exhaust gas discharged from each cylinder, send it to the exhaust pipe and muffler, and then discharge it into the atmosphere.

The intake and exhaust manifold is usually made of cast iron, and the intake manifold is also made of aluminum alloy, which can be cast integrally or separately. The intake and exhaust manifolds are bolted to the cylinder block or cylinder head, and asbestos gaskets are installed on the joint surface to prevent air leakage. The intake manifold carries the carburetor with flange, and the exhaust manifold communicates with the exhaust pipe downward.

Matters needing attention in the use of intake manifold

Intake manifold pressure will be affected by throttle opening, engine speed and sealing performance.

The smaller the throttle opening, the greater the suction effect formed by the piston, the greater the suction force of the intake manifold, the greater the vacuum degree and the smaller the intake pipe pressure.

The higher the engine speed, the greater the suction effect formed by the piston, the greater the intake manifold suction, the greater the vacuum degree and the smaller the intake manifold pressure. The better the sealing performance, the greater the intake manifold suction, the greater the vacuum degree and the smaller the intake manifold pressure.