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Engine coolant concentration automatic regulating device and automatic regulating method

An engine coolant, automatic adjustment technology, applied in the direction of engine cooling, engine components, machines/engines, etc., can solve the problems of inability to meet customer requirements, manual adjustment, etc., to optimize heating performance and engine heat dissipation performance, avoid market Effects of bad problems

Active Publication Date: 2014-01-08
DONGFENG MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current situation is that the concentration of LLC has been fixed when the vehicle leaves the factory and needs to be manually adjusted later, which cannot meet the various requirements of customers.

Method used

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  • Engine coolant concentration automatic regulating device and automatic regulating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] figure 1 The device for automatically adjusting the concentration of the engine coolant in Embodiment 1 and the engine cooling system to which it is applied are shown.

[0044]The engine is cooled by a cooling system, which includes a coolant circulation circuit 1, a radiator branch 2, an automatic concentration adjustment device 3, and piping 4. The coolant circulation circuit 1 includes an engine 101 , an air-conditioning and heating system 102 , a water pump 103 and main pipes connecting them in series. The radiator branch 2 and the piping 4 are respectively connected in parallel with the air conditioning and heating system 102 , and are opened and closed by a thermostat 202 . The radiator branch 2 includes a radiator 201 .

[0045] The automatic concentration adjustment device 3 includes a separation device 31 , a concentration branch 32 , a dilution branch 33 , and a control system 34 .

[0046] The separation device 31 is provided with a horizontal separation me...

Embodiment 2

[0060] The difference between this embodiment and Embodiment 1 is that the cooling system does not include radiators, pipes, and thermostats.

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Abstract

The invention provides an engine coolant concentration automatic regulating device. The engine coolant concentration automatic regulating device comprises a separation device, a concentration branch, a dilution branch and a control system; a separation membrane is arranged in the separation device and divides the space inside the separation device into two parts, namely a concentrated solution area and a solvent area; the concentrated solution area is in series connection with a trunk pipeline; the solvent area is provided with an exhaust port and a drainage port; one end of a concentration branch pipeline is connected with the exhaust port of the solvent area of the separation device, and the other end of the concentration branch pipeline is connected with a water pump; a concentration valve is arranged on the concentration branch pipeline; one end of a dilution branch pipeline is connected with a water outlet of a water storage container, and the other end of the dilution branch pipeline is connected with a coolant circulation loop; a dilution valve is arranged on the dilution branch pipeline; the control system controls the concentration valve and the dilution valve to be opened and closed according to water temperature signals of an engine, outside-car air temperature signals and LLC current concentration signals. The engine coolant concentration automatic regulating device can be used for realizing automatic regulation of engine coolant concentration according to various working conditions and service environments of vehicles.

Description

technical field [0001] The invention relates to an automatic adjustment device and an automatic adjustment method for engine coolant concentration. Background technique [0002] The concentration (bulk density of ethylene glycol) of engine coolant (commonly ethylene glycol aqueous solution, hereinafter referred to as "LLC") is a fixed value prepared when the vehicle leaves the factory. If adjustment is required, only special stock solution can be purchased. Replacement is performed by professional staff, the vehicle itself cannot be adjusted automatically. [0003] The concentration of LLC affects the following properties: [0004] 1. Air-conditioning and heating performance: the lower the concentration of LLC, the better the performance of air-conditioning and heating; [0005] 2. Engine cooling performance: the lower the concentration of LLC, the better the engine cooling performance; [0006] 3. Anti-freezing performance: The concentration of LLC determines its freezin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P7/14
Inventor 陈乐德
Owner DONGFENG MOTOR CO LTD
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