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Engine convex machine (reshape the Force! Car cam rebuilds horsepower!) When the driver steps on UEFA Champions League livethe accelerator to accelerate, what makes us feel is the roar of the engine and the acceleration of the car. However, this motivation does not come from itself, but from the power of the cam. Cams are key components in the automobile engine system, and they determine the output capacity and power of the engine. This article will discuss the significance of the engine bulge and its role in the optimization of automobile performance. What is an engine convex machine? The engine cam, also known as the camshaft, is an important part of a four-stroke gasoline engine. The camshaft controls the opening and closing time of the engine valve and the valve lift. When the camshaft rotates, the top of the cam arranged up and down is in contact with the valve rod, allowing it to be pushed down, thus opening the valve.In the groove area on the camshaft, the valve rod can move freely, so that the valve can be closed without any collision. The shape of the cam determines the opening and closing time of the engine valve, as well as the opening and lift of the valve. These parameters directly affect the performance of the engine, such as torque, horsepower, fuel economy and emissions. Therefore, the design and manufacture of camshafts is an important means to improve engine performance and one of the key technologies in the automotive industry. Why do we need to redesign the cam? The initial design of the car cam is basically suitable for the general use conditions of the vehicle. However, higher power and responsiveness are required in racing driving, road racing and performance vehicles. To this end, many high-performance vehicles are equipped with specially designed and manufactured camshafts. Redesigning the camshaft can achieve the following effects: 1.Increase the valve lift and opening. The contact time between the bump of the camshaft and the valve rod will increase the lift and opening of the valve, allowing more air to flow or out of the cylinder, and improving the engine performance and output power. Two. Expand the air intake time and quantity. The time and quantity of the intake channel will determine the airflow capacity and fuel mixing degree inside the engine. Improving the design of the camshaft can achieve the purpose of expanding the intake time and quantity, improving the combustion efficiency and fuel utilization rate, so as to increase the performance and fuel economy of the engine. 3. Improve explosion control. The gap between the valve and the cylinder head is called the quench, which is one of the key factors affecting the explosion control. By better designing the camshaft, the scavenger area can be optimized and the balance between fuel consumption and power can be increased. Four. Enhance the smoothness of power output. Withdrawing the engine with high speed and high power output will lead to instability of low-speed and low-power output.In response to this, the redesign of the camshaft can balance the output capacity and responsiveness of the engine, ensure the smoothness of power output, and improve the driving quality. Methods and processes of redesigning camshafts: There are basically two ways to redesign camshafts: 1. Apply modern computer-aided design tools, such as AVL Boost, KULI and GT-Power, to determine the best camshaft parameters through thermodynamic analysis and fluid dynamics simulation. These tools can simulate engine operation and performance on the computer to find the optimal camshaft design. Two. Through laboratory testing and field competition experience, try-error experiments are carried out, the shape and parameters of the cam are modified, and the most appropriate camshaft design is determined through comparative data such as fuel economy, power output, driving feeling and emission test.No matter which method is adopted, the process of redesigning the camshaft needs to be carried out from many aspects such as "preliminary design", "large sample design", "processing design", "manufacturing process design", etc., which requires engineers in multiple professional fields to work together to carry out design, coordination, testing and iteration to ensure the expected effect. Fruit. Finally, it is worth mentioning that the design of the camshaft will also be different for different engine types and usage environments. Therefore, the process of redesigning the camshaft also requires multi-scene, multi-condition and multi-sample tests to ensure that the final camshaft meets the actual needs. To sum up, the engine camshaft is a very important part of the automobile engine, which directly affects the performance and output power of the engine. Redesigning the camshaft is one of the important means to improve the performance of the car, by increasing the gasA number of measures such as door lift and opening, expanding the intake channel time and quantity, improving explosion control and enhancing the smoothness of power output to improve the performance and fuel economy of the engine. The redesign of the camshaft requires complex engineering design and experiments, and requires multi-field engineers to cooperate to complete. At the same time, the design should also consider different engine types and usage environments for targeted design, and optimize the design of the camshaft through testing and iteration. In the future, with the development of automobile science and technology, the research and development and design of camshafts will pay more attention to innovation and environmental protection, improve automobile performance and fuel economy, reduce exhaust emissions, reduce environmental pollution, and make greater contributions to the better life of mankind.

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