Split type fully-wrapped heat shield for exhaust gas turbocharging

Abstract

The utility model discloses a split type fully-wrapped heat shield for exhaust gas turbocharging, and relates to the technical field of heat shields. The exhaust manifold comprises a volute and a cover body, a cylinder body connecting end and an exhaust gas outlet end are respectively arranged at two ends of the volute, an intake manifold is arranged on the peripheral side surface of the volute, a bypass mounting table is arranged between the cylinder body connecting end and the peripheral side surface of the volute, the cover body wraps the peripheral side surface of the volute, and a cotton layer is arranged between the cover body and the volute. The heat insulation cover is formed by designing the first sub-cover, the second sub-cover, the third sub-cover, the fourth sub-cover and the fifth sub-cover, the volute can be completely wrapped by all the sub-covers after the sub-covers are assembled, the heat insulation capacity of the heat insulation cover can be greatly improved, meanwhile, all the sub-covers can directly enter and exit when being assembled, interference with a protruding structure on a worm gear is avoided, and the heat insulation performance of the heat insulation cover is improved. And the sub-covers cannot interfere with one another during assembly, so that the assembly efficiency of the heat insulation cover can be greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat insulation covers, in particular to a split type fully enclosed heat insulation cover for exhaust gas turbocharging. Background Art

[0002] Regarding the heat insulation of the exhaust gas turbocharger, since the turbocharger has a cylinder seat and an exhaust gas outlet at both ends, and a single-channel or double-channel manifold is set on the peripheral side, and a bypass valve needs to be assembled, a bypass mounting platform is also required. As a result, the outer surface of the entire volute has different convexities and concave surfaces and a complex structure. The irregular surface will make it difficult to position and assemble the heat insulation cover of the metal outer cover, or it may not meet the full coverage requirements, thus affecting the heat insulation capacity.

[0003] Therefore, designing a heat shield that is easy to assemble and can achieve full coverage is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of the utility model is to provide a split-type fully enclosed heat shield for exhaust gas turbocharging. The heat shield is composed of a first sub-shield, a second sub-shield, a third sub-shield, a fourth sub-shield and a fifth sub-shield. After being assembled, the sub-shields can completely wrap the volute, which can greatly improve the heat insulation capacity of the heat shield. At the same time, the sub-shields can be directly inserted and removed during assembly without interfering with the protruding structure on the worm gear. Moreover, the sub-shields will not interfere with each other during assembly, thereby greatly improving the assembly efficiency of the heat shield.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a split-type all-inclusive heat-insulating cover for exhaust gas turbocharging, comprising a volute and a cover body. The two ends of the volute are respectively provided with a cylinder connection end and an exhaust gas outlet end. The circumferential side of the volute is provided with an intake manifold. A bypass mounting platform is provided between the cylinder connection end and the circumferential side of the volute.

[0007] The cover is wrapped around the circumferential side of the volute and a cotton layer is provided between the cover and the volute. The cover is provided with a first opening and a second opening respectively cooperating with the intake manifold and the bypass mounting platform;

[0008] The cover body is composed of a first sub-cover, a second sub-cover, a third sub-cover, a fourth sub-cover and a fifth sub-cover;

[0009] The first sub-cover is arranged on a side away from the intake manifold;

[0010] The second sub-cover is arranged on a side away from the bypass mounting platform and is connected to the first sub-cover;

[0011] The third sub-cover is arranged between the second sub-cover and the intake manifold, and the end of the third sub-cover away from the second sub-cover covers two side surfaces of the intake manifold;

[0012] The fourth sub-cover is covered on the bypass mounting platform and its two ends are respectively connected to the first sub-cover and the third sub-cover, and the fourth sub-cover covers the third side surface of the intake manifold;

[0013] The fourth sub-cover covers half of the bypass mounting platform, and the first sub-cover covers the other half of the bypass mounting platform;

[0014] The fifth sub-cover is arranged outside the fourth sub-cover, two ends of the fifth sub-cover are connected to the first sub-cover and the third sub-cover respectively, and the fifth sub-cover covers the fourth side surface of the intake manifold.

[0015] Furthermore, a first inner folded edge is provided at an edge of the cover body close to the cylinder connecting end, and the first inner folded edge is in contact with the peripheral side surface of the cylinder connecting end.

[0016] Furthermore, a second inner folded edge is provided at the edge of the other end of the cover body, and the second inner folded edge is in contact with the peripheral side surface of the exhaust gas outlet end.

[0017] Furthermore, a third inner folded edge is provided at the inner edges of the first opening and the second opening. The third inner folded edge on the first opening is in contact with the peripheral side surface of the outer end portion of the intake manifold, and the third inner folded edge of the second opening is in contact with the peripheral side surface at the edge of the bypass mounting platform.

[0018] Furthermore, a gap is formed between the cover body and the volute at a position away from the first inner fold edge, the second inner fold edge and the third inner fold edge, and the cotton layer is filled in the gap.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model forms a heat shield by designing a first sub-shield, a second sub-shield, a third sub-shield, a fourth sub-shield, and a fifth sub-shield. After being assembled, each sub-shield can completely wrap the volute, which can greatly improve the heat insulation capacity of the heat shield. At the same time, each sub-shield can be directly inserted and removed during assembly without interfering with the protruding structure on the worm gear. Moreover, each sub-shield will not interfere with each other during assembly, thereby greatly improving the assembly efficiency of the heat shield.

[0021] 2. The utility model, through the design of the first inner folding edge, the second inner folding edge and the third inner folding edge, can not only seal at each edge of the heat insulation cover to improve the heat insulation capacity, but also play a positioning role during assembly, thereby improving assembly efficiency and accuracy.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a schematic structural diagram of a split-type fully enclosed heat shield for exhaust gas turbocharging according to the present invention;

[0025] Figure 2 This is a structural diagram of the utility model from another side perspective;

[0026] Figure 3 This is an exploded view of the structure of the present utility model;

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 1-volute, 2-cover, 101-cylinder connection end, 102-exhaust outlet end, 103-intake manifold, 104-bypass mounting platform, 201-first inner fold, 202-second inner fold, 203-first opening, 204-second opening, 205-first sub-cover, 206-second sub-cover, 207-third sub-cover, 208-fourth sub-cover, 209-fifth sub-cover. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-3 As shown, the utility model is a split-type fully enclosed heat insulation cover for exhaust gas turbocharging, comprising a volute 1 and a cover body 2. The two ends of the volute 1 are respectively provided with a cylinder connection end 101 and an exhaust gas outlet end 102. The side surface of the volute 1 is provided with an intake manifold 103. A bypass mounting platform 104 is provided between the cylinder connection end 101 and the side surface of the volute 1.

[0031] The cover 2 is wrapped around the side of the volute 1 and a cotton layer is provided between the cover 2 and the volute 1. The cover 2 is provided with a first opening 203 and a second opening 204 which respectively cooperate with the intake manifold 103 and the bypass mounting platform 104;

[0032] The housing 2 is composed of a first sub-cover 205, a second sub-cover 206, a third sub-cover 207, a fourth sub-cover 208 and a fifth sub-cover 209;

[0033] The first sub-cover 205 is arranged on a side away from the intake manifold 103;

[0034] The second sub-cover 206 is disposed on a side away from the bypass mounting platform 104 and is connected to the first sub-cover 205;

[0035] The third sub-cover 207 is disposed between the second sub-cover 206 and the intake manifold 103 , and the end of the third sub-cover 207 away from the second sub-cover 206 covers two side surfaces of the intake manifold 103 ;

[0036] The fourth sub-cover 208 covers the bypass mounting platform 104 and is connected to the first sub-cover 205 and the third sub-cover 207 at both ends. The fourth sub-cover 208 covers the third side surface of the intake manifold 103.

[0037] The fourth sub-cover 208 covers half of the bypass mounting platform 104 , and the first sub-cover 205 covers the other half of the bypass mounting platform 104 ;

[0038] The fifth sub-cover 209 is disposed outside the fourth sub-cover 208 . Both ends of the fifth sub-cover 209 are connected to the first sub-cover 205 and the third sub-cover 207 , respectively. The fifth sub-cover 209 covers the fourth side surface of the intake manifold 103 .

[0039] Among them Figure 1-3 As shown, a first inner folded edge 201 is provided at the edge of the cover body 2 close to the cylinder connecting end 101 , and the first inner folded edge 201 is in contact with the peripheral side surface of the cylinder connecting end 101 .

[0040] Among them Figure 1-3 As shown, a second inner folded edge 202 is provided at the edge of the other end of the cover body 2 , and the second inner folded edge 202 is in contact with the peripheral side surface of the exhaust gas outlet end 102 .

[0041] Among them Figure 1-3 As shown, a third inner fold edge is provided at the inner edge of the first opening 203 and the second opening 204. The third inner fold edge on the first opening 203 is in contact with the peripheral side surface of the outer end portion of the intake manifold 103, and the third inner fold edge of the second opening 204 is in contact with the peripheral side surface at the edge of the bypass mounting platform 104.

[0042] A gap is formed between the cover body 2 and the volute 1 at a position away from the first inner fold edge 201 , the second inner fold edge 202 and the third inner fold edge, and the cotton layer is filled in the gap.

[0043] The first sub-cover 205, the second sub-cover 206, the third sub-cover 207, the fourth sub-cover 208 and the fifth sub-cover 209 are connected to each other at opposite ends, and the connection points can be connected and fixed by various methods such as welding, folding connection, plug-in structure connection, fastener connection and bracket connection.

[0044] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these 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 any one or more embodiments or examples.

[0045] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A split-type all-inclusive heat-insulating cover for exhaust gas turbocharging, comprising a volute (1) and a cover body (2), wherein the volute (1) is provided with a cylinder connection end (101) and an exhaust gas outlet end (102) at both ends, an intake manifold (103) is provided on the peripheral side of the volute (1), and a bypass mounting platform (104) is provided between the cylinder connection end (101) and the peripheral side of the volute (1), characterized in that: The cover (2) is wrapped around the circumferential side of the volute (1) and a cotton layer is provided between the cover and the volute (1). The cover (2) is provided with a first opening (203) and a second opening (204) respectively cooperating with the intake manifold (103) and the bypass mounting platform (104); The cover body (2) is composed of a first sub-cover (205), a second sub-cover (206), a third sub-cover (207), a fourth sub-cover (208) and a fifth sub-cover (209); The first sub-cover (205) is arranged on a side away from the intake manifold (103); The second sub-cover (206) is arranged on a side away from the bypass mounting platform (104) and is connected to the first sub-cover (205); The third sub-cover (207) is arranged between the second sub-cover (206) and the intake manifold (103), and the end of the third sub-cover (207) away from the second sub-cover (206) covers two side surfaces of the intake manifold (103); The fourth sub-cover (208) covers the bypass mounting platform (104) and is connected to the first sub-cover (205) and the third sub-cover (207) at both ends, respectively. The fourth sub-cover (208) covers the third side surface of the intake manifold (103); The fourth sub-cover (208) covers half of the bypass mounting platform (104), and the first sub-cover (205) covers the other half of the bypass mounting platform (104); The fifth sub-cover (209) is arranged outside the fourth sub-cover (208), and both ends of the fifth sub-cover (209) are respectively connected to the first sub-cover (205) and the third sub-cover (207), and the fifth sub-cover (209) covers the fourth side surface of the intake manifold (103).

2. A split all-inclusive heat shield for exhaust gas turbocharging according to claim 1, characterized in that: A first inner folded edge (201) is provided at the edge of one end of the cover body (2) close to the cylinder body connection end (101), and the first inner folded edge (201) is in contact with the peripheral side surface of the cylinder body connection end (101).

3. The split-type fully enclosed heat shield for exhaust gas turbocharging according to claim 2, characterized in that: A second inner folded edge (202) is provided at the edge of the other end of the cover body (2), and the second inner folded edge (202) is in contact with the peripheral side surface of the exhaust gas outlet end (102).

4. The split-type fully enclosed heat shield for exhaust gas turbocharging according to claim 3, characterized in that: A third inner folded edge is provided at the inner edge of each of the first opening (203) and the second opening (204); the third inner folded edge on the first opening (203) is in contact with the peripheral side surface of the outer end portion of the intake manifold (103); and the third inner folded edge on the second opening (204) is in contact with the peripheral side surface at the edge of the bypass mounting platform (104).

5. The split-type fully enclosed heat shield for exhaust gas turbocharging according to claim 4, characterized in that: A gap is formed between the position of the cover body (2) away from the first inner folded edge (201), the second inner folded edge (202) and the third inner folded edge and the volute (1), and the cotton layer is filled in the gap.

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