Cooling system of steering gear and vehicle

Abstract

The utility model provides a steering gear heat dissipation system and a vehicle, the steering gear heat dissipation system comprises an oil storage tank, an oil supply pipeline and a radiator, the oil supply pipeline comprises an oil inlet pipeline and an oil outlet pipeline, the oil inlet pipeline and the oil outlet pipeline are respectively communicated with the oil storage tank; an oil inlet heat dissipation oil way and an oil outlet heat dissipation oil way are formed in the radiator, one end of the oil inlet heat dissipation oil way is communicated with the oil inlet pipeline, the other end of the oil inlet heat dissipation oil way is suitable for being communicated with an oil inlet of a steering gear, one end of the oil outlet heat dissipation oil way is communicated with an oil outlet of the steering gear, and the other end of the oil outlet heat dissipation oil way is communicated with the oil inlet pipeline. According to the heat dissipation system of the steering gear, oil way circulation is formed between the oil storage tank and the steering gear, so that the heat dissipation device can dissipate and cool oil entering the steering gear and oil flowing out of the steering gear, and the problem that various steering performances are degraded due to high temperature of a hydraulic steering system is solved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a steering gear cooling system and a vehicle. Background Technology

[0002] In hydraulic power steering systems, the steering gear and power pump operate under high load continuously in high-temperature environments during summer, especially under overload conditions. The temperature of the steering system rises sharply. When the temperature exceeds the tolerance temperature of the internal rubber parts of the steering system, the sealing performance of the steering system components decreases, the steering efficiency decreases, the steering becomes heavy, or even the power steering fails. It is necessary to stop the vehicle immediately to cool it down.

[0003] In existing technologies, the steel pipes of the steering system hydraulic lines are located inside the cockpit, where the heat dissipation environment is poor, which is not conducive to heat dissipation. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a heat dissipation system for a steering gear, wherein an oil circuit is formed between the oil reservoir and the steering gear, allowing a radiator to dissipate heat and cool the oil circuit between the oil reservoir and the steering gear, thus solving various steering performance degradation problems caused by high temperatures in the hydraulic steering system.

[0005] A heat dissipation system for a steering gear according to an embodiment of the present invention includes: an oil reservoir, an oil supply pipeline, and a radiator; the oil supply pipeline includes an inlet pipeline and an outlet pipeline, which are respectively connected to the oil reservoir; the radiator has an inlet cooling oil passage and an outlet cooling oil passage formed therein, one end of the inlet cooling oil passage is connected to the inlet pipeline and the other end is adapted to be connected to the oil inlet of the steering gear, and one end of the outlet cooling oil passage is connected to the oil outlet of the steering gear and the other end is connected to the outlet pipeline.

[0006] According to the heat dissipation system of the steering gear in this embodiment of the utility model, hydraulic oil is supplied to the steering gear by forming an oil circuit circulation between the oil reservoir and the steering gear. When the radiator dissipates the oil, the dissipated oil can also dissipate the heat of the steering gear. Furthermore, when the oil in the steering gear flows back to the oil reservoir, the returning oil can also dissipate heat. This reduces the temperature of the oil in the reservoir that enters the steering gear next. In other words, through the design of the radiator and the oil inlet and outlet cooling oil circuits inside the radiator, the heat dissipation of the oil entering and leaving the steering gear is achieved, thereby improving the heat dissipation effect of the steering gear.

[0007] The heat dissipation system of the steering gear according to an embodiment of the present invention further includes an air guide shroud, which is located below the radiator and guides the airflow along the lower part of the radiator toward the radiator.

[0008] According to the heat dissipation system of the steering gear in this embodiment of the present invention, the air guide shroud and the radiator define an air guide opening facing the front of the vehicle, and the bottom surface of the air guide shroud gradually approaches the radiator from front to back so that the air guide opening gradually decreases in size.

[0009] According to the heat dissipation system of the steering gear according to an embodiment of the present utility model, the heat sink includes a plurality of heat sinks, and a heat dissipation channel is formed between adjacent heat sinks. The heat dissipation channel includes a first air inlet located at the front and a second air inlet located at the bottom. The air guide shroud guides the airflow along the second air inlet into the heat dissipation channel, and the airflow also enters the heat dissipation channel through the first air inlet.

[0010] According to the heat dissipation system of the steering gear in this embodiment of the utility model, the position of the radiator is lower than the position of the oil reservoir and the steering gear.

[0011] According to the heat dissipation system of the steering gear in this embodiment of the present invention, the distance between the radiator and the steering gear is less than the distance between the radiator and the oil reservoir.

[0012] The heat dissipation system of the steering gear according to an embodiment of the present utility model further includes a rotary pump, which is located in the oil inlet pipeline, and the oil inlet of the rotary pump is connected to the oil outlet of the oil reservoir, and the oil outlet of the rotary pump is connected to the oil inlet of the oil inlet cooling oil circuit, and the outlet of the oil inlet cooling oil circuit is connected to the oil inlet of the steering gear.

[0013] According to the heat dissipation system of the steering gear in the present invention, part of the oil supply line adopts a vibration damping pipe section and part of the oil supply line adopts a metal pipe section, and the total length of the vibration damping pipe section is greater than the total length of the metal pipe section.

[0014] According to the heat dissipation system of the steering gear in this embodiment of the present utility model, the end of the oil inlet pipe near the oil inlet cooling oil passage adopts the metal pipe segment, and the end of the oil outlet pipe near the oil outlet cooling oil passage adopts the metal pipe segment.

[0015] This utility model embodiment also proposes a vehicle including the aforementioned steering gear cooling system.

[0016] The advantages of the vehicle compared to existing technologies and the cooling system compared to existing technologies are the same, and will not be elaborated here.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the heat dissipation system of the steering gear according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the heat sink according to an embodiment of the present invention;

[0021] Figure 3 This is a side view of the air guide cover according to an embodiment of the present utility model.

[0022] Figure label:

[0023] Steering gear cooling system 100,

[0024] Oil inlet pipe 1, oil outlet pipe 2, steering gear 3, oil reservoir 4, radiator 5, heat sink 51, heat dissipation channel 52, first air inlet 521, second air inlet 522, air guide shroud 6, air guide opening 61, rotary pump 7, steering gear inlet pipe 8, steering gear outlet pipe 9. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The following is for reference. Figures 1-3 The description of the steering gear cooling system 100 according to an embodiment of the present invention describes how hydraulic oil is provided to the steering gear 3 by forming an oil circuit circulation between the oil reservoir 4 and the steering gear 3. When the radiator 5 cools the oil, the cooled oil flows to the steering gear 3 and also cools the steering gear 3. Furthermore, when the oil in the steering gear 3 flows back to the oil reservoir 4, the radiator 5 can also cool the returned oil. In other words, it can reduce the temperature of the oil entering the steering gear 3 from the oil reservoir 4. Through the design of the radiator 5 and the oil inlet and outlet cooling oil circuits inside the radiator 5, the cooling of the oil entering the steering gear 3 and the oil flowing out of the steering gear 3 is achieved, thereby improving the cooling effect of the steering gear 3.

[0029] like Figure 1 and Figure 2 As shown in the figure, this utility model embodiment proposes a steering gear heat dissipation system 100, including: an oil reservoir 4, an oil supply pipeline and a radiator 5.

[0030] The oil supply line includes an inlet oil line 1 and an outlet oil line 2, which are respectively connected to the oil storage tank 4. The radiator 5 has an inlet cooling oil line and an outlet cooling oil line. One end of the inlet cooling oil line is connected to the inlet oil line 1 and the other end is adapted to be connected to the oil inlet of the steering gear 3. One end of the outlet cooling oil line is connected to the oil outlet of the steering gear 3 and the other end is connected to the outlet oil line 2.

[0031] In practice, a hydraulic power steering system is a system that helps drivers control the steering of a car more easily. It transmits steering force and provides cushioning through hydraulic oil, reducing the driver's steering effort and improving driving comfort and safety. In the hydraulic oil circuit, the oil inlet pipe 1 connects the oil reservoir 4 to the inlet of the radiator 5's oil inlet cooling circuit, while the outlet of the oil inlet cooling circuit connects to the inlet of the steering gear 3. Similarly, the outlet of the steering gear 3 connects to the inlet of the radiator 5's outlet cooling circuit. The oil in the outlet cooling circuit flows through the outlet pipe 2 towards the inlet of the oil reservoir 4. Of course, the oil inlet cooling circuit and the inlet pipe 1 in the radiator 5 can generally be designed as a single, interconnected system, and the oil outlet cooling circuit and the outlet pipe 2 in the radiator 5 can also be designed as a single, interconnected system, with the oil outlet cooling circuit and the oil inlet cooling circuit distributed at intervals inside the radiator 5.

[0032] Specifically, when the hydraulic oil in the reservoir 4 flows into the inlet pipe 1, it flows through the inlet pipe 1 to the inlet cooling oil circuit in the radiator 5. After the inlet cooling oil circuit cools the hydraulic oil, the cooled hydraulic oil flows to the inlet of the steering gear 3, thereby reducing the temperature of the steering gear 3. At the same time, the steering gear 3 generates heat during operation. This means that the oil flowing to the steering gear 3 exchanges heat with the steering gear 3, increasing the oil temperature and decreasing the temperature of the steering gear 3, thus cooling the steering gear 3. The heated oil flows through the outlet of the steering gear 3 to the outlet cooling oil circuit of the radiator 5, and after being cooled again by the radiator 5, it flows to the reservoir 4, so that the oil entering the steering gear 3 next time is at a low temperature, thereby reducing the temperature of the steering gear 3.

[0033] In other words, by connecting the radiator 5 to the oil inlet pipe 1 and the oil outlet pipe 2, the oil is cooled before entering the steering gear 3, and cooled again before flowing back to the oil reservoir 4, thereby improving the cooling effect of the oil on the steering gear 3 and avoiding the problems of reduced sealing performance of various components of the steering gear 3, reduced steering efficiency, or even steering assist failure.

[0034] In some embodiments, the heat dissipation system 100 of the steering gear further includes an air guide shroud 6, which is located below the radiator 5 and guides the airflow along the lower part of the radiator 5 toward the radiator 5.

[0035] First, the radiator 5 can be positioned at the bottom front of the vehicle to facilitate airflow into the radiator 5 while the vehicle is in motion, thereby improving the cooling effect of the radiator 5, which in turn improves the cooling effect of the radiator 5 on the oil inlet and outlet cooling oil passages. Furthermore, a guide shroud 6 is installed at the bottom of the radiator 5 to guide the airflow along the bottom of the radiator 5 into the radiator 5. The area above the radiator 5 may experience greater airflow resistance due to the vehicle's structure, but placing the guide shroud 6 below the radiator 5 allows for smoother airflow and increases the airflow rate entering the guide shroud 6, thus improving the cooling effect of the radiator 5.

[0036] In some embodiments, the air duct 6 and the radiator 5 define an air duct opening 61 facing the front of the vehicle, and the bottom surface of the air duct 6 gradually approaches the radiator 5 from front to back so that the air duct opening 61 gradually decreases in size.

[0037] That is, reference Figure 2 and Figure 3 As shown, an air guide opening 61 is defined between the air guide 6 and the radiator 5. Airflow enters from the front of the vehicle between the air guide 6 and the radiator 5 along the air guide opening 61, and the distance between the air guide 6 and the radiator 5 gradually decreases from front to back; Figure 3 As shown, the cross-section of the air guide 6 can be a trapezoidal structure or a triangular structure. The air guide 6 guides the airflow and increases the air intake volume. It allows a large amount of airflow to enter the air guide 6 and be directed toward the radiator 5, thereby improving the airflow gathering effect at the bottom of the radiator 5 and improving the heat dissipation effect of the radiator 5.

[0038] In some embodiments, the radiator 5 includes a plurality of heat sinks 51, and a heat dissipation channel 52 is formed between adjacent heat sinks 51. The heat dissipation channel 52 includes a first air inlet 521 located at the front and a second air inlet 522 located at the bottom. The air guide 6 guides the airflow along the second air inlet 522 into the heat dissipation channel 52, and the airflow also enters the heat dissipation channel 52 through the first air inlet 521.

[0039] Continue to refer to Figure 2 As shown, a heat dissipation channel 52 is formed between adjacent heat sinks 51, and the front of the heat dissipation channel 52 is open to form a first air inlet 521, and the bottom is open to form a second air inlet 522. Of course, the rear and top of the heat dissipation channel 52 are also open, that is, airflow can enter the heat dissipation channel 52 along the front, back, left and right sides of the heat dissipation channel 52.

[0040] During vehicle operation, the airflow flows from front to back. A large amount of airflow can enter the air duct 6 through the air duct opening 61 in front of the air duct 6, and gather inside the air duct 6 and be guided to the second air inlet 522 at the bottom between the adjacent heat sinks 51, so that the airflow enters the adjacent heat dissipation channel 52 through the second air inlet 522. Of course, during the vehicle's forward movement, a large amount of airflow also enters the heat dissipation channel 52 along the first air inlet 521. This layout of the radiator 5 and the air duct 6 improves the gathering effect of airflow at the bottom of the radiator 5, thereby improving the heat dissipation effect of the oil inlet and outlet cooling oil passages inside the radiator 5, which in turn improves the heat dissipation effect of the oil on the steering gear 3.

[0041] In addition, the heat sink 51 can be made of aluminum alloy or copper, which are good conductors of heat. The heat sink 51 is plate-shaped, with a large surface area and thin thickness, so that heat can be easily dissipated from the heat sink 51, thereby improving the heat dissipation effect of the entire heat sink 5.

[0042] In some embodiments, the radiator 5 is positioned below the positions of the oil tank 4 and the steering gear 3.

[0043] In practice, the radiator 5 is positioned relatively low, such as at the front bottom of the vehicle. During vehicle operation, airflow moves from front to back along the top of the radiator 5 and from front to back along the bottom of the radiator 5. However, due to the influence of the vehicle body, the airflow resistance is relatively high along the rear side of the top of the radiator 5. Therefore, by positioning the radiator 5 relatively low, the airflow along the bottom of the vehicle radiator 5 flows more smoothly. Moreover, the position of the radiator 5 is lower than that of the fuel tank 4 and the steering gear 3, which not only allows for a reasonable layout of the steering gear 3, fuel tank 4, and radiator 5, but also improves the heat dissipation effect of the radiator 5.

[0044] In some embodiments, the distance between the radiator 5 and the steering gear 3 is less than the distance between the radiator 5 and the oil reservoir 4.

[0045] First, the steering gear 3 is prone to generating heat during operation. By placing the radiator 5 closer to the steering gear 3, the radiator 5 can cool the oil in the inlet and outlet oil cooling circuits. The radiator 5 mainly cools the oil near the steering gear 3. At this time, the oil temperature near the steering gear 3 is lower, so the cooled oil can effectively reduce the temperature of the steering gear 3.

[0046] In some embodiments, the steering gear cooling system 100 further includes a rotary pump 7, which is located in the oil inlet line 1. The oil inlet of the rotary pump 7 is connected to the oil outlet of the oil reservoir 4, and the oil outlet of the rotary pump 7 is connected to the oil inlet of the oil cooling oil passage. The outlet of the oil cooling oil passage is connected to the oil inlet of the steering gear 3.

[0047] The rotary pump 7 primarily raises the low-pressure oil in the oil reservoir 4 to high-pressure oil, and then delivers the oil to the steering gear 3 to achieve hydraulic control of the steering gear 3. When the rotary pump 7 is working, it also generates heat. In this embodiment, the oil flowing out of the oil outlet of the steering gear 3 is cooled by the oil cooling circuit of the radiator 5 and then flows back into the oil reservoir 4. That is, the oil in the oil reservoir 4 at this time is cooled by heat dissipation, so that when the oil in the oil reservoir 4 re-enters the rotary pump 7, it can also cool the rotary pump 7, thereby improving the service life of the rotary pump 7.

[0048] In some embodiments, a portion of the oil supply pipeline uses vibration-damping pipe sections and a portion uses metal pipe sections, with the total length of the vibration-damping pipe sections being greater than the total length of the metal pipe sections.

[0049] Figure 1 In the oil inlet, the oil outlet of the oil tank 4 is connected to the oil inlet of the radiator 5 via the oil inlet cooling oil circuit, which forms the oil inlet pipe 1. The oil outlet of the radiator 5 can be connected to the steering gear 3 via the steering gear inlet pipe 8. The oil inlet pipe 1 includes multiple metal pipe sections and multiple vibration damping pipe sections. The metal pipe sections are made of steel pipes, and the vibration damping pipe sections are made of rubber pipes. The metal pipes have better heat dissipation, and the vibration damping pipe sections are made of rubber material, which has good noise reduction and vibration absorption effects. The more rubber pipes used in the oil inlet pipe 1 and the oil outlet pipe 2, the better the NVH performance of the steering system.

[0050] Similarly, the oil outlet pipe 2 includes a damping pipe section and a metal pipe section. The oil inlet of the oil outlet cooling oil circuit of the radiator 5 can be connected to the steering gear 3 through the steering gear outlet pipe 9. If a damping pipe section is set in part of the oil outlet pipe 2 and a metal pipe section is set in part, the damping pipe section can absorb noise and vibration, reducing the noise of the steering system during vehicle operation. At the same time, the metal pipe section can achieve auxiliary heat dissipation.

[0051] In addition, in the oil inlet line 1, the pipeline between the oil outlet of the oil storage tank 4 and the oil inlet of the rotary pump 7 can also be set as a vibration damping section. That is, the oil inlet line 1 and the oil outlet line 2 form an integrated oil supply circuit. In the integrated oil supply circuit, the length of the vibration damping section accounts for a larger proportion of the overall oil supply circuit than the proportion of the metal section. In other words, the oil inlet line 1 and the oil outlet line 2 use metal sections and vibration damping sections in part. More vibration damping sections are used. While using metal sections to assist in heat dissipation, more vibration damping sections can improve the noise reduction and vibration absorption effect of the steering system.

[0052] In some embodiments, the end of the oil inlet pipe 1 near the oil inlet cooling oil passage is made of metal, and the end of the oil outlet pipe 2 near the oil outlet cooling oil passage is also made of metal.

[0053] First, the heat dissipation effect of metal pipes is better than that of rubber pipes. The end of the oil inlet pipe 1 near the oil inlet cooling circuit is a metal pipe, and the steering gear inlet pipe 8 is also a metal pipe, which improves the heat dissipation effect near the radiator 5. The oil outlet pipe 2 includes a damping pipe and a metal pipe. The end of the oil outlet pipe 2 near the oil outlet cooling circuit inside the radiator is a metal pipe, and the steering gear outlet pipe 9 is also a metal pipe, which can improve the heat dissipation effect at the end of the radiator 5.

[0054] In other words, by rationally designing the metal pipe section and the vibration damping pipe section, the combination of the metal pipe section and the radiator 5 can improve the heat dissipation efficiency, and the vibration damping pipe section can reduce the noise of the steering system. Thus, effective heat dissipation can be achieved while reducing noise.

[0055] This utility model embodiment also proposes a vehicle including the aforementioned steering gear cooling system 100. By forming an oil circuit circulation between the oil reservoir 4 and the steering gear 3, hydraulic oil is provided to power the steering gear 3. When the radiator 5 cools the oil, the cooled oil flows to the steering gear 3 and also cools the steering gear 3. Furthermore, when the oil in the steering gear 3 flows back to the oil reservoir 4, the radiator 5 can also cool the returned oil, thereby reducing the temperature of the oil in the oil reservoir 4 entering the power pump 7 and the oil in the steering gear 3. In other words, through the design of the radiator 5 and the oil inlet and outlet cooling circuits inside the radiator 5, the cooling effect of the steering gear 3 is improved, thereby increasing the lifespan and steering efficiency of the vehicle's steering gear 3.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat dissipation system for a steering gear, characterized in that, include: Oil storage tank (4); The oil supply pipeline includes an oil inlet pipeline (1) and an oil outlet pipeline (2), which are respectively connected to the oil storage tank (4); The radiator (5) has an oil inlet cooling oil passage and an oil outlet cooling oil passage. One end of the oil inlet cooling oil passage is connected to the oil inlet pipe (1) and the other end is adapted to be connected to the oil inlet of the steering gear (3). One end of the oil outlet cooling oil passage is connected to the oil outlet of the steering gear (3) and the other end is connected to the oil outlet pipe (2).

2. The heat dissipation system for the steering gear according to claim 1, characterized in that, It also includes an air guide shroud (6), which is located below the radiator (5) and guides the airflow along the lower part of the radiator (5) toward the radiator (5).

3. The heat dissipation system for the steering gear according to claim 2, characterized in that, The air guide shroud (6) and the radiator (5) define an air guide opening (61) facing the front of the vehicle. The bottom surface of the air guide shroud (6) gradually approaches the radiator (5) from front to back so that the air guide opening (61) gradually decreases.

4. The heat dissipation system for the steering gear according to claim 3, characterized in that, The radiator (5) includes a plurality of heat sinks (51), and a heat dissipation channel (52) is formed between adjacent heat sinks (51). The heat dissipation channel (52) includes a first air inlet (521) located at the front and a second air inlet (522) located at the bottom. The air guide shroud (6) guides the airflow along the second air inlet (522) into the heat dissipation channel (52), and the airflow also enters the heat dissipation channel (52) through the first air inlet (521).

5. The heat dissipation system for the steering gear according to claim 3, characterized in that, The radiator (5) is positioned lower than the oil tank (4) and the steering gear (3).

6. The heat dissipation system for the steering gear according to claim 1, characterized in that, The distance between the radiator (5) and the steering gear (3) is less than the distance between the radiator (5) and the oil storage tank (4).

7. The heat dissipation system for the steering gear according to claim 1, characterized in that, It also includes a rotary pump (7), which is located in the oil inlet pipeline (1), and the oil inlet of the rotary pump (7) is connected to the oil outlet of the oil storage tank (4), and the oil outlet of the rotary pump (7) is connected to the oil inlet of the oil inlet cooling oil circuit, and the outlet of the oil inlet cooling oil circuit is connected to the oil inlet of the steering gear (3).

8. The heat dissipation system for the steering gear according to claim 1, characterized in that, Some of the oil supply lines use vibration-damping pipe sections and some of the oil supply lines use metal pipe sections, and the total length of the vibration-damping pipe sections is greater than the total length of the metal pipe sections.

9. The heat dissipation system for the steering gear according to claim 8, characterized in that, The end of the oil inlet pipe (1) near the oil inlet cooling oil passage uses the metal pipe section, and the end of the oil outlet pipe (2) near the oil outlet cooling oil passage uses the metal pipe section.

10. A vehicle, characterized in that, The heat dissipation system of the steering gear as described in any one of claims 1-9.

Images