The one-week automobile engine disassembly internship is over. Recalling this period, his reluctance is true. I want to come back a week ago, and then use my daily exercise as seven to twenty-seven hours. It's true, this internship opportunity is too precious for me.
In this internship, I learned something about automobile engines, which was incomparable in previous classes. I once again feel the necessity of a profound combination of theory and practice.
Because the engine component that the teacher arranged for us is Santana 2000 engine. First of all, I understand the theoretical knowledge of automobile engines as follows:
Santana 1982 product of Volkswagen ag. The company entered Shanghai on 1983, and has developed three-generation and four-generation production lines to match the development of China, and put Santana 2000 electronic fuel injection system on the market in 1995.
The main parameters of an automobile include technical parameters, basic parameters, engine parameters and chassis parameters. The engine structure is JV type, and the combustion chamber is spherical and flat, which makes the function of squeezing gas area strong to reduce fuel consumption and air pollution. The valve is overhead camshaft type, and the camshaft directly pushes the rod. Its advantages are simple structure, small inertia of parts, high system stiffness, and improved effective engine speed. The valve is a hydraulic lifting rod, which can automatically adjust the valve clearance. The air intake system has an electric heater and a temperature-controlled air intake valve, which can ensure a smooth start and shorten the warm-up time. Closed water cooling system adopts forced circulation.
The basic structure of modern automobile engine consists of crank-connecting rod mechanism, valve body, transmission system, lubrication system, cooling system, ignition system and starting system. Connecting rod crank engine is a power mechanism for energy conversion and transmission. The valve body is the ventilator of the engine. Ventilation process: close the control valve on time to ensure that the gas and waste gas are fully mixed and discharged. The supply pipeline ensures that fresh combustible mixture is supplied to the master cylinder and discharged at the outlet, and different quantities and concentrations of combustible mixture are supplied according to different engine working conditions.
People always say that when you have something, you won't feel its preciousness or see its value, but when you lose it, you will suddenly regret it, but it's too late to regret it now. I feel the same way now.
The one-week automobile engine disassembly internship is over. Looking back on this period, I really feel reluctant to go. I wish I could go back to a week ago and treat the 7 hours of internship every day as 27 hours. Indeed, this internship opportunity is really precious to me.
In this internship, I learned some knowledge about automobile engines, which is incomparable to any previous class. And I once again deeply felt the necessity of combining theory with practice.
Due to the teacher's arrangement, the engine we assembled was Santana 2000. First of all, for the study of automobile engine theory knowledge, I learned:
Santana is a product of Volkswagen 1982. Company 1983 entered Shanghai and cooperated with China to develop. At present, it has developed into the third and fourth generation production lines, and Santana 2000 electronically controlled gasoline injection system was put on the market in 1995.
The main parameters of an automobile include technical parameters, basic parameters, engine parameters and chassis parameters. The structure of the engine is JV type, and the combustion chamber is oblate, which can expand the air extrusion area, has powerful functions and reduce fuel consumption and air pollution. The camshaft of the valve train is overhead, and the camshaft directly pushes the connecting rod. The advantages are simple structure, small inertia of parts, high system stiffness and effective improvement of engine speed. The valve tappet is hydraulic, and the valve clearance is automatically adjusted. The air intake system has an electric heater and a temperature-controlled air intake valve, which can ensure the smooth start of the car and shorten the warm-up time. The cooling system adopts closed water cooling forced circulation.
The basic structure of modern automobile engine consists of crank-connecting rod mechanism, valve train, transmission system, lubrication system, cooling system, ignition system and starting system. Crank-connecting rod mechanism is a mechanism for engine to convert energy and transmit power. The valve mechanism is the air exchange mechanism of the engine. Ventilation process: control the valve to close on time to ensure the full combustion of mixed gas and waste gas in the valve train. The supply system is to ensure the supply of fresh combustible mixture and exhaust gas to the cylinder, and supply combustible mixture with different quantities and concentrations according to different working conditions of the engine.
This is quite good, hee hee.