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Simulation testing machine for evaluating cooling uniformity of internal combustion engine

A simulation test and uniform cooling technology, which is applied in the field of simulation testing machines, can solve the problems of inability to realize quantitative measurement of coolant flow uniformity, inability to arrange temperature and pressure sensors in the water jacket, and long test cycle, so as to shorten the test cycle and test The effect of long cycle and reduced test cost

Inactive Publication Date: 2011-10-26
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The actual machine test is the test method closest to the actual situation. However, due to the high pressure and high temperature in the cylinder of the internal combustion engine, it is impossible to arrange temperature and pressure sensors inside the water jacket, so that quantitative measurement of the flow uniformity of the coolant cannot be realized.
In addition, there are many modifications to the internal combustion engine itself in the actual machine experiment, the test cycle is long, and the test cost is high.

Method used

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  • Simulation testing machine for evaluating cooling uniformity of internal combustion engine
  • Simulation testing machine for evaluating cooling uniformity of internal combustion engine
  • Simulation testing machine for evaluating cooling uniformity of internal combustion engine

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Embodiment Construction

[0018] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] Such as figure 1 As shown, the simulation test machine for evaluating the cooling uniformity of an internal combustion engine includes an internal combustion engine cooling water jacket 1, a first cylinder 2 of an internal combustion engine, a cooling water inlet pressure sensor 3, a cooling water inlet temperature sensor 4, a water pump 5, a first motor 6, a cooling water Flowmeter 7, cooling fan 8, radiator 9, first throttle valve 10, water pipe 11, cooling water outlet temperature sensor 12, cooling water outlet pressure sensor 13, first cylinder flowmeter 14, second cylinder flowmeter 15, The third cylinder flow meter 16, the fourth cylinder flow meter 17, the first cylinder throttle valve 18, the second cylinder throttle valve 19, the third cylinder throttle valve 20, the fourth cylinder throttle valve 21, the heat tr...

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Abstract

The invention discloses a simulation testing machine for evaluating cooling uniformity of an internal combustion engine. The simulation testing machine comprises: an internal combustion engine body, a water pump, a high-temperature oil pump, a first motor, a second motor, a flowmeter of cooling water, a cooling fan, a radiator, a first throttle valve, a second throttle valve, a sensor of outlet temperature of cooling water, a sensor of outlet pressure of cooling water, a boiler of heat transfer oil, a high-temperature flowmeter, a simulated piston, a measuring plate, and the like. According to the invention, the boiler of heat transfer oil is used to heat silicone oil as well as make the heated silicone oil circulated and pass a cylinder of the internal combustion engine so as to simulate the actual heating of the internal combustion engine; besides, cyclic cooling liquid is used for cooling the simulation testing machine. According to the testing apparatus, the measuring plate is arranged between a cylinder cover of an engine and the body, so that relevant sensors van be arranged to measure internal parameters of a cooling water jacket of the internal combustion engine. Compared with an actual internal combustion engine, the simulation testing machine has advantages of simple structure and short test period; in addition, a function of high-efficient measurement of cooling uniformity of the internal combustion engine can be realized with low cost.

Description

technical field [0001] The present invention relates to a simulation test machine, in particular to a simulation test machine for evaluating the cooling uniformity of an internal combustion engine. Background technique [0002] The cylinder head and body of the internal combustion engine are the main components of the engine, and their forms and the shape of the internal cooling channels are very complicated. Tests have confirmed that the heat transferred from the gas to the coolant accounts for about 20%-30% of the total calorific value of the fuel, so the diesel engine cooling system has a great impact on the economy, reliability, and emission performance of the diesel engine. is particularly prominent. [0003] Insufficient cooling will lead to overheating, deflagration, early combustion, increased emissions, and increased wear of parts, which will deteriorate the power, economy, reliability, and emissions of the engine; It will reduce the performance of the diesel engi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/05G01M15/09
Inventor 刘波刘震涛俞小莉韩松夏平尹旭李杰傅佳宏夏琪伟
Owner ZHEJIANG UNIV
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