What is the function of the camshaft of the car?

The function of the camshaft is to drive and control the opening and closing of the valves of each cylinder of the engine, so that it conforms to the requirements of the working sequence of the engine, the phase of the valve and the change law of the valve opening.

Camshafts are mainly composed of cams and journals. The cam on the camshaft is divided into two types: intake cam and exhaust cam, which are used to make the valve open and close in time according to the necessary working sequence and valve phase, and ensure that the valve has sufficient lift.

The journal plays a supporting role, and is installed in the camshaft journal bearing housing hole on the cylinder head, and is fixed with a camshaft bearing cover, and there are bearing pads in the journal housing hole.

The function of the automobile camshaft is to control the opening and closing action of the valve. Camshafts are usually forged from high-quality carbon or alloy steel, and can also be cast in alloy cast iron or ductile iron. The journal and cam working surfaces are heat-treated and polished.

The symptoms of car camshaft damage are as follows: 1. The car has a high-pressure fire, but the starting time is long, and the car can finally run; 2. In starting.

1.The role of camshafts in automobiles: Camshafts are a component of a piston engine.

Its function is to control the opening and closing of the valve. Although the traveling camshaft speed of a four-stroke engine is half the speed of the crankshaft (the camshaft speed and crankshaft speed of a two-stroke engine are the same).

2.However, it usually rotates at high speeds and needs to withstand a lot of torque, so the design of the camshaft requires high strength and high support of the burrow. Tape ruler.

3.The material is generally special cast iron, and forgings are occasionally used. The design of the camshaft plays a very important role in the design of the engine, because the laws of valve movement are related to the power and running characteristics of the engine.

Automobile camshaft for searching:

1. The camshaft is a component in the piston engine. Its function is to control the opening and closing action of the valve. Although in a four-stroke engine the camshaft is half the speed of the crankshaft (in a two-stroke engine, the camshaft rotates at the same speed as the crankshaft);

2. But it usually has a high speed and needs to withstand a lot of torque, so the design of the camshaft has high requirements in terms of strength and support requirements;

3. The material is generally special cast iron, and forgings are also occasionally used. The design of the camshaft plays a very important role in the design of the engine, because the law of valve motion is related to the power and running characteristics of an engine.

1. The cam bridge shaft is a component in the piston engine, and its function is to control the opening and closing of the valve;

2. Although in a four-stroke engine, the speed of the camshaft is half of that of the crankshaft (in a two-stroke engine, the speed of the camshaft is the same as the crankshaft), usually its speed is still very high, and it needs to withstand a lot of torque, so the design of the camshaft has been greatly improved in terms of strength and support, and its material is generally special cast iron, and occasionally forgings are used;

3. Because the law of valve motion is related to the power and operation characteristics of the engine, the camshaft design occupies a very important position in the design process of the engine.

The cam shaft is a component of the piston engine. Its function is to control the opening and closing of the valve. The working principle of the camshaft is:

The continuous rotation of the car's camshaft pushes the valve ejector rod up and down, and then controls the opening and closing of the valve. By changing the curve of the camshaft, the opening and closing times of the valves can be precisely adjusted.

The symptoms of car camshaft damage are as follows:

1. The car has a high-pressure fire, but the starting time is long, and the car can finally run;

2. During the starting process, the crankshaft will be reversed, and the intake manifold will be tempered;

3. The idle speed of the car is unstable and the shaking is serious, similar to the failure of the car cylinder;

4. The acceleration of the car is insufficient, the car cannot run, and the speed exceeds 2500 rpm;

5. The vehicle has high fuel consumption, the exhaust gas emission exceeds the standard, and the exhaust pipe will produce black smoke.