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Temperature control device, hydraulic steering system and commercial vehicle

A temperature control device and steering system technology, which is applied in the field of commercial vehicles, can solve problems such as the inability to actively control the working temperature of the hydraulic oil of the system, the bursting of radiators and low-pressure oil pipes, the increase of system energy consumption and the heat production of the system, and achieve a good heat dissipation effect , fast heat dissipation, high heat dissipation effect

Pending Publication Date: 2022-01-21
ZHEJIANG GEELY HLDG GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In method 3), during normal operation, the system back pressure is twice as high as that without a radiator, which increases system energy consumption and system heat production. In addition, during low-temperature cold start, the system back pressure is caused by the narrow channel of the condenser cooling fin. If the pressure is too high, it is easy to cause the radiator and low-pressure oil pipe to burst. In addition, this method cannot actively control the working temperature of the hydraulic oil in the system.

Method used

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  • Temperature control device, hydraulic steering system and commercial vehicle
  • Temperature control device, hydraulic steering system and commercial vehicle
  • Temperature control device, hydraulic steering system and commercial vehicle

Examples

Experimental program
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Effect test

Embodiment 1

[0040]The plurality of auxiliary passages 6 are always fully open, and no valve may be provided to control the opening and closing of the auxiliary passages 6 or to adjust the flow of the auxiliary passages 6 . The flow rate of the main channel 5 is controlled by a temperature control valve assembly 7 . The temperature control valve assembly 7 is configured to control the flow rate of the main channel 5 to decrease when the temperature of the hydraulic oil increases, and to control the flow rate of the main channel 5 to increase when the temperature of the hydraulic oil decreases. The main channel 5 is set such that its channel resistance when it is in a fully open state is smaller than that of the auxiliary channel 6 when it is in a fully open state. The main channel 5 can be cylindrical, for example, and its flow resistance is relatively small when the channel is fully open.

[0041] By setting the temperature control valve assembly 7 to control the flow rate of the main ch...

Embodiment 2

[0048] The difference between the second embodiment and the first embodiment is that the positions of a plurality of auxiliary channels 6 and the main channel 5 are limited in the second embodiment, and the plurality of auxiliary channels 6 are spaced apart and stacked, and are arranged on the main channel 5 on the same side.

Embodiment 3

[0050] The difference between the third embodiment and the second embodiment is that in the third embodiment, the plurality of auxiliary channels 6 are divided into two groups of auxiliary channels, and the two groups of auxiliary channels are respectively arranged on both sides of the main channel 5, and each group The auxiliary channel group includes a plurality of auxiliary channels 6 . Compared with the solution in which multiple auxiliary channels 6 are arranged on the same side of the main channel 5, in the solution of the embodiment of the present invention, since the auxiliary channel groups are respectively arranged on both sides of the main channel 5, the overall structure of the temperature control device is more stable.

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Abstract

The invention provides a temperature control device, a hydraulic steering system and a commercial vehicle. The temperature control device comprises an oil inlet cavity, an oil outlet cavity, amain channel, a plurality of auxiliary channels and a temperature control valve assembly; the two ends of the main channel are respectively connected with the oil inlet cavity and the oil outlet cavity; each auxiliary channel is configured to be in a fin shape, and the two ends of each auxiliary channel are connected with the oil inlet cavity and the oil outlet cavity correspondingly; and one end of the temperature control valve assembly is connected into the oil outlet cavity, communicates with the main channel and is used for controlling the flow of the main channel according to the temperature of hydraulic oil in the oil outlet cavity so as to adjust the flow ratio of the main channel to the auxiliary channels. According to the scheme, the purpose of well controlling the temperature of the hydraulic oil in the oil outlet cavity can be achieved, and the working temperature of the hydraulic oil is always within the optimal working temperature range.

Description

technical field [0001] The invention relates to the technical field of commercial vehicles, in particular to a temperature control device, a hydraulic steering system and a commercial vehicle. Background technique [0002] At present, the steering system of commercial vehicles adopts the form of hydraulic power assist. In order to control the temperature of the hydraulic oil in the steering system, improve the service life of the hydraulic oil in the steering system, reduce leakage in the system, improve the control accuracy of the steering system, reduce the probability of component failure, and ensure the normal operation of the system, From the aspect of system heat dissipation, there are mainly three methods to control: 1) Lengthen the heat dissipation pipeline, or add heat dissipation fins on the hard pipe of the system pipeline; 2) The material of the hard pipe in the steering pump and low-pressure pipeline is replaced by steel It is aluminum alloy; 3) add a radiator i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/0423B62D5/06
CPCF15B21/0423B62D5/062
Inventor 沈梦景吴铁锋刘聪张博奇甘林汪威陈佳鑫纪金辉
Owner ZHEJIANG GEELY HLDG GRP CO LTD
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