An engine supercharger heat shield assembly

Abstract

The application discloses an engine supercharger heat shield assembly, and belongs to the technical field of automobile heat insulation components, which is used for providing an engine supercharger heat shield assembly which is more convenient to disassemble and assemble, comprising a first heat insulation sleeve and a second heat insulation sleeve, wherein the first heat insulation sleeve and the second heat insulation sleeve both extend along a circular arc direction, the first heat insulation sleeve is provided with a first through groove penetrating the inner wall and the outer wall on the inner side of the circular arc, the first through groove extends to both ends of the first heat insulation sleeve, and the second heat insulation sleeve is provided with a second through groove on the inner side of the circular arc, and the second through groove extends to both ends of the second heat insulation sleeve. According to the heat insulation sleeve structure with the expandable through groove, the heat insulation sleeve is tightly sleeved on the outer wall of the engine supercharger shell by using the elastic force of the heat insulation sleeve, the cooperation degree of the heat shield assembly and the engine supercharger is improved by cooperating with the clamping groove structure arranged on the heat insulation sleeve, the cooperation stability is good without using additional connecting pieces, and the disassembly and assembly operation of the heat shield assembly is more convenient.

Description

Technical Field

[0001] This application relates to the field of automotive heat insulation components, and more particularly to an engine turbocharger heat shield assembly. Background Technology

[0002] The high-temperature, high-speed airflow inside the engine turbocharger causes the casing to heat up rapidly. Although the turbocharger casing itself is made of heat-resistant alloy material and can withstand high temperatures for a long time, components near the turbocharger may lose their normal function under the influence of high temperatures.

[0003] The existing engine turbocharger heat shield assembly requires the use of connectors for installation and fixation, which is inconvenient to perform disassembly and assembly operations in the confined space of the engine compartment. Utility Model Content

[0004] The purpose of this application is to provide an engine turbocharger heat shield assembly that is easier to install and remove.

[0005] To achieve the above objectives, this application provides an engine turbocharger heat shield assembly, comprising a first heat shield and a second heat shield. Both the first and second heat shields extend along an arcuate direction. The first heat shield has a first through groove extending through the inner and outer walls on the inner side of the arcuate side, and the first through groove extends to both ends of the first heat shield. The second heat shield has a second through groove extending to both ends of the arcuate side of the second heat shield. An intake pipe channel is formed between one end of the first heat shield and the second heat shield, and an exhaust pipe channel is formed between the other end of the first heat shield and the second heat shield, for the tubular structure extending from the engine turbocharger to pass through.

[0006] As a preferred embodiment, the first heat insulation sleeve and the second heat insulation sleeve have the same arc radius, which matches the circumference of the engine turbocharger housing.

[0007] As a preferred embodiment, the cross-sections of the first heat insulation sleeve and the second heat insulation sleeve along the radial direction of the arc are also arc-shaped, and the diameters of the arcs of the cross-sections of the first heat insulation sleeve and the second heat insulation sleeve are the same, which fits the arc-shaped outer wall of the engine turbocharger housing.

[0008] As a preferred embodiment, the width of the first through groove is smaller than the cross-sectional arc diameter of the first heat insulation sleeve; the width of the second through groove is smaller than the cross-sectional arc diameter of the second heat insulation sleeve, so that the heat insulation sleeve narrows at the through groove, thereby gripping the housing of the engine turbocharger.

[0009] As a preferred embodiment, one end of the first heat insulation sleeve is provided with a first intake pipe fitting groove, and one end of the second heat insulation sleeve is provided with a second intake pipe fitting groove. The first intake pipe fitting groove and the second intake pipe fitting groove are adapted to form the intake pipe channel, so that when the heat insulation cover assembly is disassembled and assembled, the intake pipe of the engine turbocharger will not interfere with the two heat insulation sleeves.

[0010] As a preferred embodiment, one end of the first heat insulation sleeve is provided with a first exhaust pipe fitting groove, and the other end of the second heat insulation sleeve is provided with a second exhaust pipe fitting groove. The first exhaust pipe fitting groove and the second exhaust pipe fitting groove are adapted to form the exhaust pipe channel. Similarly, when the heat insulation cover assembly is disassembled and assembled, the exhaust pipe of the engine turbocharger will not interfere with the two heat insulation sleeves.

[0011] As a preferred embodiment, the end face of the other end of the first heat insulation sleeve is the first pair of top faces, and the end face of the other end of the second heat insulation sleeve is the second pair of top faces. The first pair of top faces and the second pair of top faces are suitable for fitting together, which facilitates the detection of whether the two heat insulation sleeves are installed in place.

[0012] As a preferred embodiment, the first heat insulation sleeve has a first engaging groove that penetrates the inner and outer walls and is connected to the first through groove; the second heat insulation sleeve has a second engaging groove that penetrates the inner and outer walls and is connected to the second through groove, for engaging with the protruding structure on the outer surface of the engine turbocharger housing, thereby improving the fit between the heat insulation sleeve assembly and the turbocharger, while reducing movement and improving installation stability.

[0013] Compared with the prior art, the beneficial effects of this application are as follows: (1) By designing a heat insulation sleeve structure with an expandable through groove, the heat insulation sleeve can be tightly fitted to the outside of the engine turbocharger housing using its own elasticity. The matching groove structure opened on the heat insulation sleeve improves the fit between the heat insulation cover assembly and the engine turbocharger. It has very good fit stability without the need for additional connecting parts, making the disassembly and assembly of the heat insulation cover assembly more convenient. (2) By splitting the heat shield assembly of the turbocharger into two parts, the two heat shields are constrained by the intake and exhaust pipes of the engine turbocharger itself, which further improves the stability of the heat shields configured outside the turbocharger and makes the disassembly and assembly operations faster. Attached Figure Description

[0014] Figure 1 This is a first three-dimensional schematic diagram of the overall structure of the engine turbocharger heat shield assembly.

[0015] Figure 2 This is a second three-dimensional schematic diagram of the overall structure of the engine turbocharger heat shield assembly.

[0016] Figure 3This is a three-dimensional structural diagram of the first heat insulation sleeve of the engine turbocharger heat shield assembly.

[0017] Figure 4 This is a three-dimensional structural diagram of the second heat insulation sleeve of the engine turbocharger heat shield assembly.

[0018] Figure 5 This is a cross-sectional view of the second heat shield of the engine turbocharger heat shield assembly.

[0019] In the figure: 1. First heat insulation sleeve; 101. First through groove; 102. First locking groove; 103. First intake pipe fitting groove; 104. First exhaust pipe fitting groove; 105. First top surface; 2. Second heat insulation sleeve; 201. Second through groove; 202. Second locking groove; 203. Second intake pipe fitting groove; 204. Second exhaust pipe fitting groove; 205. Second top surface; 12. Intake pipe channel; 34. Exhaust pipe channel. Detailed Implementation

[0020] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. They should not be construed as limiting the specific protection scope of this application.

[0022] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0023] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0024] like Figure 1-5The engine turbocharger heat shield assembly shown includes two parts: a first heat shield 1 and a second heat shield 2. The first heat shield 1 and the second heat shield 2 are made of high-elastic "olefinic" aerogel, which has heat insulation properties and can maintain good elasticity under high temperature conditions of thousands of degrees. Even if the engine turbocharger heats up to several hundred degrees, the first heat shield 1 and the second heat shield 2 can maintain structural stability. They can be removed and reinstalled. The first heat shield 1 and the second heat shield 2 both extend in an arc direction, which is consistent with the arc of the engine turbocharger shell. Therefore, the arc radius of the first heat shield 1 and the second heat shield 2 will be the same. The cross-section of the first heat shield 1 and the second heat shield 2 in the radial direction of the arc is also arc-shaped, which is similar to the cross-section of the engine turbocharger in the radial direction. Since the cross-sectional shape of the engine turbocharger is usually unchanged, the diameter of the arc of the cross-section of the first heat shield 1 and the second heat shield 2 will also be the same.

[0025] The first heat insulation sleeve 1 has a first through groove 101 that penetrates the inner and outer walls on the inner side of the arc. The first through groove 101 extends to both ends of the first heat insulation sleeve 1, so that the engine turbocharger housing can slide into the first heat insulation sleeve 1 through the first through groove 101. The width of the first through groove 101 is smaller than the diameter of the arc of the cross section of the first heat insulation sleeve 1. The width of the first through groove 101 is about one-third of the circumference of the whole circle. The first heat insulation sleeve 1 has a first engaging groove 102 that penetrates the inner and outer walls. The first engaging groove 102 connects to the first through groove 101, allowing the protruding structure on the outer surface of the engine turbocharger housing to be embedded. On the one hand, it provides installation positioning for the first heat insulation sleeve 1, and on the other hand, it prevents the first heat insulation sleeve 1 from moving outside the engine turbocharger housing after installation.

[0026] The second heat insulation sleeve 2 has a second through groove 201 on the inner side of its arc. The second through groove 201 extends to both ends of the second heat insulation sleeve 2, which facilitates the insertion of the engine turbocharger housing into the second heat insulation sleeve 2 through the second through groove 201. The width of the second through groove 201 is smaller than the diameter of the arc of the cross section of the second heat insulation sleeve 2. The width of the second through groove 201 is also about one-third of the circumference of the entire circle. The second heat insulation sleeve 2 has a second engaging groove 202 that penetrates the inner and outer walls. Since the second heat insulation sleeve 2 is significantly longer than the first heat insulation sleeve 1, there are two second engaging grooves 202 on the second heat insulation sleeve 2. The second engaging grooves 202 connect the two second through grooves 201. The two second engaging grooves 202 also allow the protruding structure on the outer surface of the engine turbocharger housing to be inserted, which improves the fit between the second heat insulation sleeve 2 and the turbocharger housing, and takes into account the installation positioning and anti-movement function after installation.

[0027] An intake pipe channel 12 is formed between one end of the first heat insulation sleeve 1 and the second heat insulation sleeve 2 for the intake pipe of the engine turbocharger to pass through. Specifically, one end of the first heat insulation sleeve 1 is provided with a first intake pipe fitting groove 103, and one end of the second heat insulation sleeve 2 is provided with a second intake pipe fitting groove 203. After the first heat insulation sleeve 1 and the second heat insulation sleeve 2 are fitted over the engine turbocharger housing, the first intake pipe fitting groove 103 and the second intake pipe fitting groove 203 automatically form the intake pipe channel 12.

[0028] An exhaust pipe channel 34 is formed between the other ends of the first heat insulation sleeve 1 and the second heat insulation sleeve 2 for the exhaust pipe of the engine turbocharger to pass through. Specifically, one end of the first heat insulation sleeve 1 is provided with a first exhaust pipe fitting groove 104, and the other end of the second heat insulation sleeve 2 is provided with a second exhaust pipe fitting groove 204. When the first heat insulation sleeve 1 and the second heat insulation sleeve 2 are fitted over the engine turbocharger housing, the first exhaust pipe fitting groove 104 and the second exhaust pipe fitting groove 204 automatically form the exhaust pipe channel 34. It should be noted that the end face of the other end of the first heat insulation sleeve 1 is the first pair of top surfaces 105, and the end face of the other end of the second heat insulation sleeve 2 is the second pair of top surfaces 205. The first pair of top surfaces 105 and the second pair of top surfaces 205 can fit together perfectly, so that the inner walls of the first exhaust pipe fitting groove 104 and the second exhaust pipe fitting groove 204 are aligned, forming an exhaust pipe channel 34 that fits perfectly with the outer surface of the engine turbocharger exhaust pipe.

[0029] Working principle: During installation, first install the second heat insulation sleeve 2, and slightly apply an outward expansion force to the second through groove 201 to expand it, allowing the edge of the second through groove 201 to slide along the arc-shaped outer surface of the turbocharger housing until the turbocharger housing slides into the second heat insulation sleeve 2. At the same time, the second intake pipe fitting groove 203 fits against the outer surface of the turbocharger intake pipe, and the second exhaust pipe fitting groove 204 fits against the outer surface of the turbocharger exhaust pipe. The protruding structures on the outer surface of the turbocharger housing, such as bolt seats or nut seats, are precisely embedded in the second locking groove 202. Then install the first heat insulation sleeve 1, similarly allowing the edge of the first through groove 101 to slide along the arc-shaped outer surface of the turbocharger housing until the turbocharger housing slides into the first heat insulation sleeve 1. The first intake pipe fitting groove 103 fits against the outer surface of the turbocharger intake pipe, and the first exhaust pipe fitting groove 104 fits against the outer surface of the turbocharger exhaust pipe. Other bolt seats or nut seats on the outer surface of the turbocharger housing that need to be in corresponding positions are embedded in the first engaging groove 102. The installation is completed by checking whether the first pair of top surfaces 105 are aligned with the second pair of top surfaces 205. After installation, since the main heat-generating parts of the engine turbocharger are wrapped by the heat shield assembly, and the heat shield is resistant to high temperatures, the probability of the components around the turbocharger being damaged by high temperatures is effectively reduced. In addition, the two heat shield sleeves of the heat shield assembly can still maintain good elasticity after experiencing high temperatures, so it is also relatively easy to disassemble. Just pull it away from the engine turbocharger housing.

[0030] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A turbocharger heat shield assembly, characterized in that: It includes a first heat insulation sleeve (1) and a second heat insulation sleeve (2). Both the first heat insulation sleeve (1) and the second heat insulation sleeve (2) extend along an arc direction. The first heat insulation sleeve (1) has a first through groove (101) that penetrates the inner and outer walls on the inner side of the arc. The first through groove (101) extends to both ends of the first heat insulation sleeve (1). The second heat insulation sleeve (2) has a second through groove (201) that extends to both ends of the second heat insulation sleeve (2). An air inlet pipe channel (12) is formed between one end of the first heat insulation sleeve (1) and the second heat insulation sleeve (2). An exhaust pipe channel (34) is formed between the other end of the first heat insulation sleeve (1) and the second heat insulation sleeve (2).

2. The engine turbocharger heat shield assembly as described in claim 1, characterized in that: The first heat insulation sleeve (1) and the second heat insulation sleeve (2) have the same arc radius.

3. The engine turbocharger heat shield assembly as described in claim 2, characterized in that: The first heat insulation sleeve (1) and the second heat insulation sleeve (2) have the same arc-shaped cross section along the radial direction of the arc, and the diameter of the arc of the cross section of the first heat insulation sleeve (1) and the second heat insulation sleeve (2) is the same.

4. The engine turbocharger heat shield assembly as described in claim 3, characterized in that: The width of the first through groove (101) is smaller than the cross-sectional arc diameter of the first heat insulation sleeve (1); the width of the second through groove (201) is smaller than the cross-sectional arc diameter of the second heat insulation sleeve (2).

5. The engine turbocharger heat shield assembly as described in any one of claims 1 to 4, characterized in that: The first heat insulation sleeve (1) has a first air inlet pipe fitting groove (103) at one end, and the second heat insulation sleeve (2) has a second air inlet pipe fitting groove (203) at one end. The first air inlet pipe fitting groove (103) and the second air inlet pipe fitting groove (203) are adapted to form the air inlet pipe channel (12).

6. The engine turbocharger heat shield assembly as described in claim 5, characterized in that: The first heat insulation sleeve (1) has a first exhaust pipe fitting groove (104) at one end, and the second heat insulation sleeve (2) has a second exhaust pipe fitting groove (204) at the other end. The first exhaust pipe fitting groove (104) and the second exhaust pipe fitting groove (204) are adapted to form the exhaust pipe channel (34).

7. The engine turbocharger heat shield assembly as claimed in claim 6, characterized in that: The end face of the first heat insulation sleeve (1) is the first pair of top faces (105), and the end face of the second heat insulation sleeve (2) is the second pair of top faces (205). The first pair of top faces (105) and the second pair of top faces (205) are adapted to fit together.

8. The engine turbocharger heat shield assembly as claimed in claim 5, characterized in that: The first heat insulation sleeve (1) has a first engaging groove (102) that penetrates the inner and outer walls, and the first engaging groove (102) is connected to the first through groove (101); the second heat insulation sleeve (2) has a second engaging groove (202) that penetrates the inner and outer walls, and the second engaging groove (202) is connected to the second through groove (201).

Images