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Control method for diesel locomotive cooling system

A technology for cooling system control and diesel locomotives, applied in the control of coolant flow, engine cooling, mechanical equipment, etc., can solve problems such as the inability to control diesel engine supercharged air cooling, and achieve the effect of expanding the selection range

Inactive Publication Date: 2015-05-06
CRRC DALIAN CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the existing cooling system control technology is unable to simultaneously cool the diesel engine boost air and high-temperature water

Method used

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  • Control method for diesel locomotive cooling system
  • Control method for diesel locomotive cooling system

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Embodiment Construction

[0013] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0014] Referring to the accompanying drawings, in the cooling system of the diesel locomotive of the present embodiment, the water radiator 4 has two processes, which are divided into two groups and arranged on both sides of the cooling device, and are connected to the diesel engine through the cooling water pipelines 9, 10, 11. The air coole...

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Abstract

The invention relates to a control method for a diesel locomotive cooling system. The diesel water outlet temperature W in a cooling water loop and the diesel air inlet temperature A in a pressurized air loop are detected, and when the diesel water outlet temperature W=TWL or the air inlet temperature A=TAL, a fan is started; when the diesel water outlet temperature meets the formula TWL<=W<TWH, or the air inlet temperature A meets the formula TAL<=A<TAH, the fan rotating speed R meets the formula RL<=R<RH, and the fan rotating speed R is adjusted linearly relative to the water outlet temperature or the air inlet temperature; when the diesel water outlet temperature W>=TWH, or the air inlet temperature A>=TAH, the fan rotating speed R=RH. Under the condition that the diesel without an intercooler is adopted in a locomotive, the cooling system needs to cool high-temperature water of the diesel and cool pressurized air of the diesel, the control problem of cooling the high-temperature water of the diesel and the pressurized air of the diesel at the same time is solved well, and therefore the model selection range of the locomotive diesel is enlarged.

Description

technical field [0001] The invention relates to a control method for a cooling system of an internal combustion locomotive, belonging to the technical field of railway locomotive manufacturing. Background technique [0002] The diesel locomotive of the prior art generally controls the rotating speed of the cooling fan by detecting the water temperature of the diesel engine. If the diesel locomotive is equipped with a diesel engine without an intercooler, the existing cooling device will not be able to cool the supercharging air of the diesel engine. For this reason, there is a scheme of a multifunctional cooling device, that is, an air cooler is arranged side by side with the water radiator, and the air inlet and outlet of the air cooler are respectively connected with the diesel engine supercharger and the diesel engine air inlet, see attached figure 1 . In this way, it can not only cool the high-temperature water of the diesel engine, but also cool the supercharged air o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P7/16
CPCF01P7/16
Inventor 刘舒轶陆岩王小博梁海涛雷鸣
Owner CRRC DALIAN CO LTD
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