A cylinder head gasket thermal resistance testing device
A technology of cylinder gasket and thermal resistance, which is applied in the field of cylinder gasket thermal resistance test device, can solve the problems that affect the accuracy of simulation, and there is no cylinder gasket thermal resistance test, etc.
Active Publication Date: 2017-03-15
CHINA NORTH ENGINE INST TIANJIN
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Problems solved by technology
[0002] The cylinder gasket is a key component of the engine. The impact of the explosion pressure on the thermal resistance of the cylinder gasket is an important boundary condition in the fluid-solid coupling calculation of the cylinder head, cylinder gasket and cooling water, which directly affects the accuracy of the simulation. At present, there is no test for the thermal resistance of the cylinder gasket. effective method, the experimental setup is designed to solve this problem
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[0008] Such as figure 1 As shown, a cylinder head gasket 4 thermal resistance testing device, the flange 9, the simulated cylinder head 8, the cylinder head gasket 4 and the body 7 are connected by fasteners 1, the flange 9 and the simulated cylinder head 8 form a closed cavity, the cavity The inside is filled with liquid medium 3, the constant temperature heater 2 ensures the temperature of the liquid medium 3 is constant, the hydraulic loading device 6 contacts with the bottom of the simulated cylinder head 8, the explosion pressure is simulated by changing the hydraulic pressure, and the temperature sensor 5 arranged on the body 7 records the cylinder in real time Pad 4 cold side temperature.
[0009] The constant temperature liquid medium 3 is used as the heat source on the high temperature side of the cylinder head gasket 4, and the constant temperature liquid medium 3 is stored in the closed cavity between the flange plate 9 and the simulated cylinder head, and the tempe...
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The invention relates to a head gasket thermal resistance measuring device. The measuring device comprises fasteners, a constant temperature heater, a liquid medium, a head gasket, a temperature sensor, a hydraulic loading device, a machine body, a stimulated cylinder head and a flange plate. The measuring device is characterized in that: the stimulated cylinder head is provided with a cavity, the constant temperature heater penetrates into the cavity of the stimulated cylinder head from one side of the stimulated cylinder head, the stimulated cylinder head is covered with the flange plate, the liquid medium is disposed in the zone surrounded by the flange plate and the stimulated cylinder head, the machine body and the stimulated cylinder head are connected through the fasteners, the head gasket is disposed between the machine body and the stimulated cylinder head, the hydraulic loading device passes through the inside of machine body and the inside of the head gasket and is in contact with the stimulated cylinder head, and the temperature sensor is disposed in the machine body and is in contact with the head gasket. The measuring device can measure the temperature of a low-temperature side of the head gasket under different detonation pressures and can evaluate influences of the detonation pressure on thermal conductivity of the head gasket.
Description
technical field [0001] The invention belongs to the field of engine heat transfer analysis, and in particular relates to a thermal resistance testing device for a cylinder head gasket. The device is mainly used in the thermal resistance test of the engine cylinder head gasket, to simulate the change of the cylinder head gasket thermal resistance under different explosion pressures, and to provide a basis for the heat transfer analysis of the engine. Background technique [0002] The cylinder gasket is a key component of the engine. The impact of the explosion pressure on the thermal resistance of the cylinder gasket is an important boundary condition in the fluid-solid coupling calculation of the cylinder head, cylinder gasket and cooling water, which directly affects the accuracy of the simulation. At present, there is no test for the thermal resistance of the cylinder gasket. An effective way to design this test device to solve this problem. Contents of the invention ...
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IPC IPC(8): G01N25/20
Inventor 陈晓飞庞明刘长振魏志明王尚学郝勇刚解志民张洁
Owner CHINA NORTH ENGINE INST TIANJIN