Cooling liquid temperature control system

A temperature control system and coolant technology, which is applied in the control of coolant flow, engine cooling, engine components, etc., can solve the problems that the control accuracy cannot be guaranteed, and the coolant temperature control system is difficult to be compatible with the engine, so as to improve heat transfer range, broaden the heat transfer range, and ensure the effect of temperature control accuracy

Active Publication Date: 2021-04-30
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the coolant temperature control system used in the engine test is difficult to be compatible with engines with different heat transfer requirements, resulting in the disadvantage that the control accuracy cannot be guaranteed, and to provide a coolant temperature control system

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] see Figure 1-Figure 2 , is a coolant temperature control system 100 provided by the present invention, which is used in the test experiment of the engine 10. The coolant temperature control system 100 can meet the requirements of the engine test and is a system for controlling the temperature of the coolant at the outlet of the engine 10. Specifically, such as figure 1 As shown, the engine 10 used for testing is provided with a liquid outlet pipe 11 and a liquid inlet pipe 12 for the coolant to enter and exit, and there is a coolant inside the engine 10, and the coolant can be water or oth...

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Abstract

The invention relates to the technical field of engine performance testing, and provides a cooling liquid temperature control system, which is used in an engine testing experiment. A liquid outlet pipe and a liquid inlet pipe are arranged on an engine. The cooling liquid temperature control system comprises a pipeline pump, an expansion water tank, a proportional valve and a cooling liquid circulation system, wherein the cooling liquid circulation system comprises a first cooling liquid circulation system and a second cooling liquid circulation system which are arranged in parallel; the first cooling liquid circulation system is a first cooling liquid pipeline; and the second cooling liquid circulation system comprises a first pipeline, a second pipeline, at least two heat exchangers and an external cooling water circulation system connected to the two heat exchangers in series. According to the cooling liquid temperature control system provided by the invention, the two cooling liquid circulating systems are arranged in parallel, and the at least two heat exchangers are further connected in the second cooling liquid circulating system in parallel, so that the heat exchange range of the whole cooling liquid circulating system is widened, the utilization rate of the heat exchangers can be controlled by adjusting the proportional valve, and the temperature control precision is guaranteed.

Description

technical field [0001] The invention relates to the technical field of engine performance testing, in particular to a coolant temperature control system. Background technique [0002] During the engine test process, it is often necessary to simulate the condition of the whole vehicle and various complex test conditions for test control. In the engine test, the control accuracy of the engine circulating water is directly related to whether the engine can be tested and operated normally. Therefore, during the engine test process, there are clear requirements for the temperature control of the coolant. The engine test needs to test engines with different displacements and powers, so the heat transfer requirements for coolants also vary greatly. However, the existing coolant temperature control system equipment has a good temperature control effect within a certain range of heat transfer, but cannot control accurate precision beyond the range of heat transfer. [0003] Existi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P7/16
CPCF01P7/165F01P2007/146
Inventor 翟绍春于士博李云虹黎观生李嘉仕郭训鹏
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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