Shenzhen Yongda Xing Electrical Equipment Co., Ltd.
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2018-03
The basic principle and structure of diesel generator set diesel engine
Basic concept of 1. diesel generator set diesel engine
Diesel engine is a kind of power machinery that converts the heat energy generated by the combustion of diesel in the working cylinder into mechanical energy. It is mainly composed of cylinder, cylinder head, cylinder liner, piston, connecting rod, brain uranium, flywheel. Intake valve, exhaust valve and fuel injector.
The functions and interrelationships of the above components are: the intake valve is used to suck in fresh air; the exhaust valve is used to remove the burned exhaust gas of the cylinder; the injector is used to inject diesel into the cylinder to burn the cylinder head, piston and cylinder liner. The three constitute the combustion air; one end of the connecting rod (small end) is connected with the piston, the other end (big end) is connected with the crankshaft, and the flywheel is fixed on the crankshaft. When the gas in the combustion chamber burns and expands while making the y5 flash move down, the curved sleeve is pushed to rotate through the connecting rod, and vice versa. Using the inertial force of the crankshaft and the flywheel rotating together, the piston can also be pushed up and down through the connecting rod. In this way, the-k and downward reciprocating motion of the piston constitute the basic conditions of the working cycle of the diesel engine.
When the diesel engine is working, the piston moves to the uppermost position of the cylinder, which is called-L dead center; it moves to the lowermost position 2 of the cylinder, which is called bottom dead center. The distance between the top and bottom dead centers is called the piston stroke (also known as stroke). One stroke of the piston, etc. 1: twice the radius of rotation of the crankshaft. Every time the piston moves a stroke, the curved riveting turns half a circle.
When the piston is at top dead center, the volume of the cylinder above the top of the piston is called the volume of the combustion chamber. When the piston is at bottom dead center, the cylinder volume above the piston crown is called the total cylinder volume. The total cylinder volume is equal to the value obtained by the volume of the combustion chamber, which is called the compression ratio. It indicates the degree to which the gas is compressed in the cylinder. The larger the compression ratio, the more the gas is compressed in the cylinder.
The working principle of 2. diesel generator set diesel engine
The basic working principle of a diesel engine is that diesel is injected into the cylinder to burn quickly to form high-temperature, high-pressure gas, which pushes the piston down, and drives the crankshaft through the connecting rod to promote, so that heat energy is converted into mechanical energy.
To make the diesel engine work continuously, when the piston moves up and down in the cylinder, it must be able to perform the four processes of air intake, international contraction, work and exhaust. These four processes are called the working cycle of the diesel engine. A diesel engine with a working cycle completed within four strokes of the piston (crankshaft rotation) is called four-stroke diesel. The functions and interrelationships of the above components are: the intake valve is used to suck in fresh air; the exhaust valve is used to exclude the cylinder The burned exhaust gas injector is used to inject diesel into the cylinder to burn the cylinder head, piston and cylinder liner to form the combustion air; the twist head (small head) is connected with the piston, the other end (big head) is connected with Qu uranium, and the flywheel is fixed on the crankshaft for Dianrui. When the gas in the combustion chamber burns and expands while making the y5 flash move down, the curved sleeve is pushed to rotate through the connecting rod, and vice versa. Using the inertial force of the crankshaft and the flywheel rotating together, the piston can also be pushed up and down through the connecting rod. In this way, the-k and downward reciprocating motion of the piston constitute the basic conditions of the working cycle of the diesel engine.
When the diesel engine is working, the piston moves to the uppermost position of the cylinder, which is called-L dead center; it moves to the lowermost position 2 of the cylinder, which is called bottom dead center. The distance between the top and bottom dead centers is called the piston stroke (also known as stroke). One stroke of the piston, etc. 1: twice the radius of rotation of the crankshaft. Every time the piston moves a stroke, the curved riveting turns half a week.
When the piston is at top dead center, the volume of the cylinder above the top of the piston is called the volume of the combustion chamber. When the piston is at bottom dead center, the cylinder volume above the piston crown is called the total cylinder volume. The total cylinder volume is equal to the value obtained by the volume of the combustion chamber, which is called the compression ratio. It indicates the degree to which the gas is compressed in the cylinder. The larger the compression ratio, the more the gas is compressed in the cylinder.
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