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Cooling system for large power span diesel engine of amphibious vehicle

An amphibious and cooling system technology, which is applied in engine cooling, coolant flow control, mechanical equipment, etc., can solve the problems of high power consumption of the cooling system and easy overcooling of the system, so as to reduce heat exchange links and improve economic efficiency. Sexuality, great resistance effect

Active Publication Date: 2022-02-25
CHINA NORTH ENGINE INST TIANJIN
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Problems solved by technology

The cooling water pump of the engine is generally a centrifugal water pump, relying on mechanical transmission, the transmission ratio remains unchanged, and the cooling system meets the matching requirements of the working conditions on the water. In the working conditions on land, there will be problems such as high power consumption of the cooling system and easy overcooling of the system. Therefore, A large power span engine cooling system for amphibious vehicles is required

Method used

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  • Cooling system for large power span diesel engine of amphibious vehicle

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Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0021] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a large-power-span diesel engine cooling system for amphibious vehicles, which includes a fresh water pump, the water inlet end of the fresh water pump is fixedly connected to the expansion tank, the water outlet end of the fresh water pump is fixedly connected to the engine oil heat exchanger, and the other end of the oil heat exchanger is in sequence It is connected to the engine, high-pressure fresh water cooler, three-way valve, water radiator, seawater heat exchanger, seawater pump, interstage intercooler and high-pressure seawater intercooler. In the cooling system of a large-power-span diesel engine of an amphibious vehicle according to the present invention, the inter-stage intercooler and the high-pressure intercooler are arranged in the seawater circulation system, and most of the heat dissipation of the intercooler is cooled by seawater. The cooling system arranged in the fresh water circulation reduces the heat transfer links, improves the heat transfer efficiency, improves the compactness of the system, and avoids the knocking and ablation problem caused by the lack of intercooling when the intake air temperature of the engine is low. , to cool the intake air of the engine, reduce the intake air temperature and fuel consumption, and improve the economy.

Description

technical field [0001] The invention belongs to the technical field of power cooling for amphibious vehicles, and in particular relates to a cooling system for large-power-span diesel engines of amphibious vehicles. Background technique [0002] The engine of amphibious vehicles has the characteristics of large power span. In the water working condition, the vehicle resistance is relatively large, and the water working condition requires a high speed, so the engine power is relatively large; in the land working condition, the vehicle resistance and engine power are greatly reduced, while The calibrated speed of the engine in the water and land conditions is basically the same. The cooling water pump of the engine is generally a centrifugal water pump, relying on mechanical transmission, the transmission ratio remains unchanged, and the cooling system meets the matching requirements of the working conditions on the water. In the working conditions on land, there will be probl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01P5/10F01P11/00F01P11/02F01P7/14F01P7/16F02B29/04
CPCY02T10/12
Inventor 刘永丰黄云龙尹玉婷丁技峰成立强张明亮张生平薛赪任宇泽
Owner CHINA NORTH ENGINE INST TIANJIN
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