What is a car intake and exhaust valve
automotive intake and exhaust valve is an important part of the engine, responsible for controlling the intake and exhaust process of the engine.
Definitions and functions of intake and exhaust valves
(Intake Valve) : The main function of the intake valve is to draw air into the engine, mix it with fuel and burn it to provide power to the engine. The opening and closing of the intake valve is controlled by the camshaft to ensure smooth air access to the cylinder .
Exhaust Valve : the function of the exhaust valve is to exhaust the exhaust gas after combustion to the engine, while helping to dissipate heat and maintain the normal operation of the engine. The opening and closing of the exhaust valve is also controlled by the camshaft .
The difference between intake and exhaust valves
Functional difference : The intake valve is responsible for the intake of air, while the exhaust valve is responsible for the exhaust gas. The intake valve is usually larger than the exhaust valve because more air needs to be held .
Physical characteristics : The intake valve is usually located on the side of the engine near the intake system, and the exhaust valve is located on the end near the exhaust system. In addition, the volume of the intake valve is usually larger than that of the exhaust valve .
The working principle of intake and exhaust valves
intake process : when the intake valve is opened, the air enters the cylinder through the air filter and is mixed with the fuel emitted by the fuel injection nozzle for combustion .
exhaust process : the exhaust gas after combustion is discharged through the exhaust valve, and takes away part of the heat to help the engine heat .
Technical development of intake and exhaust valves
With the development of technology, multi-valve technology is widely used. Modern engines often feature multiple valves per cylinder, such as four or more valves, to improve intake efficiency and combustion quality. This design allows the oil and gas to mix more evenly and burn more fully, thus improving engine performance and fuel economy .
The main functions of the automobile inlet and exhaust valve include the control of air and fuel entry, exhaust gas discharge and heat dissipation. The intake valve is responsible for drawing air into the engine, mixing it with fuel and burning it to provide power for the engine; The exhaust valve is responsible for discharging the exhaust gas after combustion, and helps the engine to dissipate heat, keep the internal temperature is appropriate .
The action of the intake valve
The main function of the intake valve is to draw air into the engine and mix it with fuel for combustion. The opening and closing of the intake valve is controlled by the camshaft of the engine to ensure that enough air is drawn at the right time to ensure the normal operation of the engine and power output .
The intake valve is usually designed to be larger in order to draw in more air as the piston moves down .
The role of the exhaust valve
The main function of the exhaust valve is to discharge the exhaust gas from the engine after combustion and help the engine to dissipate heat. The opening and closing of the exhaust valve is also controlled by the camshaft, ensuring that the exhaust gas is discharged at the right time to prevent the engine from overheating. The exhaust valve design is relatively small and focuses on efficient exhaust gas .
The working principle and structural characteristics of inlet and exhaust valves
The intake and exhaust valves are opened and closed by the control of the camshaft. The camshaft drives the valve movement through mechanical movement to realize the switch of the intake valve and exhaust valve. The intake valve is opened when the piston is moving downward to inhale air; The exhaust valve opens when the piston is moving upward to discharge the exhaust gas .
In addition, multi-valve technology is also used in modern automobile engines, with multiple valves per cylinder to improve intake and exhaust efficiency .
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