CN216381588U - Exhaust manifold assembly and engine - Google Patents

Abstract

The utility model provides an exhaust manifold assembly and an engine. Wherein the exhaust manifold assembly comprises: a first tubular comprising at least two first conduits; a first air inlet and an air outlet are respectively arranged at two ends of any first pipeline; at least two first air inlets are adjacently arranged, and at least two air outlets are adjacently arranged; smooth connection between the body of arbitrary two adjacent first pipelines, and each other not communicate between arbitrary two adjacent first pipelines through set up to smooth connection's structure between the body with arbitrary two adjacent first pipelines, thereby avoided setting up the strengthening rib structure between two first pipelines, space between two adjacent first pipelines has been increased, thereby can be with the pipe wall thickening of first pipeline, improve the bulk strength of first pipeline, the possibility of first pipeline inflation fracture under the high temperature gas effect has been reduced. And the problem of stress concentration at the reinforcing ribs is avoided.

Description

Exhaust manifold assembly and engine

Technical Field

The utility model belongs to the technical field of engines, and particularly relates to an exhaust manifold assembly and an engine.

Background

Middle section exhaust manifold among the exhaust manifold subassembly among the prior art is equipped with the gas outlet, and the gas outlet communicates with the waste gas inlet of booster, and high temperature waste gas leads to the inflation volume of this position body big, appears the problem of body fracture easily, and in order to avoid this problem, often adopt the method that sets up the strengthening rib between two adjacent bodies among the prior art to improve body strength, but this method has the problem of strengthening rib department stress concentration.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art or the related art.

To this end, a first object of the present invention is to propose an exhaust manifold assembly.

A second object of the utility model is to propose an engine.

To achieve at least one of the above objects, according to a first aspect of the present invention, there is provided an exhaust manifold assembly including: a first tubular comprising at least two first conduits; a first air inlet and an air outlet are respectively arranged at two ends of any first pipeline; at least two first air inlets are adjacently arranged, and at least two air outlets are adjacently arranged; the pipe bodies of any two adjacent first pipelines are connected smoothly, and the two adjacent first pipelines are not communicated with each other.

The exhaust manifold assembly provided by the application is used for forming an exhaust channel to exhaust gas. The exhaust manifold assembly includes a first pipe member including at least two first pipes therein. In order to realize the circulation of gas in the first pipelines, a first gas inlet and a first gas outlet are respectively arranged at two ends of any one first pipeline.

Gas can enter the first pipe fitting from a plurality of first air inlets, flow through the first pipeline corresponding to each first air inlet, and then be discharged to the outside of the exhaust manifold assembly through the exhaust port corresponding to each first air inlet. Any two adjacent first pipelines are not communicated with each other, namely, the gas can only flow in the first pipeline corresponding to the first gas inlet in which the gas flows, and can only be discharged from the gas outlet corresponding to the first pipeline, and the gas cannot flow between the two first pipelines. The at least two first air inlets are arranged adjacently, and the at least two air outlets are arranged adjacently, namely, all the first air inlets are arranged on the same side, and all the air outlets are arranged on the same side. Specifically, a plurality of exhaust ports can be integrally arranged on the same component, and the plurality of exhaust ports are arranged in a concentrated manner, so that the plurality of exhaust ports can be connected to other devices together. Further, a plurality of first air inlets can separate each other and set up, and a plurality of first air inlets also keep away from each other, leave certain distance between two arbitrary adjacent first air inlets to reserve sufficient installation space, be convenient for first air inlet and other device between be connected.

Further, the distance between any two adjacent exhaust holes is smaller than the distance between two corresponding first air inlets, that is, towards the exhaust port, any two adjacent first pipelines are close to each other. And the pipe bodies of any two adjacent first pipelines are smoothly connected at the position close to the exhaust port. That is, no reinforcing rib is arranged between any two adjacent first pipelines in the exhaust manifold assembly provided by the application, the two adjacent first pipelines are directly connected, and the two connected first pipelines are still in a mutually isolated state and are not communicated with each other. Because no reinforcing rib is arranged between two adjacent first pipelines, the space between the two pipelines is increased, and the pipe wall of the thicker first pipeline can be accommodated.

Because exhaust manifold subassembly in this application can be used for high-temperature gas's emission, high-temperature gas flows into first pipeline, and the pipe wall of first pipeline expands under the high temperature effect, leads to the pipe wall fracture easily, for the intensity that improves first pipeline, thickens the pipe wall of first pipeline, compares in the exhaust manifold subassembly that sets up the strengthening rib structure, and the pipe wall of first pipeline in this application can thicken 6mm to 10 mm. Because the wall thickness of the first pipeline is increased, the overall strength of the first pipeline is improved to some extent, and the possibility that the first pipeline is expanded and cracked under the action of high-temperature gas is reduced. And, compare in prior art and promote the structure of first pipeline through the strengthening rib structure, this application improves first pipeline intensity through the mode of thickening pipe wall, has avoided strengthening rib department stress concentration's problem, has further optimized the product structure.

The pipe body of any two adjacent first pipelines is set to be of a smooth connection structure, so that a reinforcing rib structure is prevented from being arranged between the two first pipelines, the space between the two adjacent first pipelines is increased, the pipe wall of each first pipeline can be thickened, the overall strength of each first pipeline is improved, and the possibility of expansion and cracking of each first pipeline under the action of high-temperature gas is reduced. And, compare in prior art and promote the structure of first pipeline through the strengthening rib structure, this application improves first pipeline intensity through the mode of thickening pipe wall, has avoided strengthening rib department stress concentration's problem, has further optimized the product structure.

According to the exhaust manifold assembly of the present invention, the following distinctive technical features may also be provided:

in the above technical solution, further, the exhaust manifold assembly further includes: the second pipe fitting is connected to the side wall of the first pipe fitting; the third pipe fitting is connected to the side wall of the first pipe fitting, which is far away from the side wall of the second pipe fitting; the second pipe fitting comprises at least one second air inlet, the third pipe fitting comprises at least one third air inlet, the second air inlet is communicated with the first pipeline close to the second pipe fitting, and the third air inlet is communicated with the first pipeline close to the third pipe fitting.

In this technical scheme, exhaust manifold still includes second pipe fitting and third pipe fitting, and the lateral wall of first pipe fitting both sides is located respectively to second pipe fitting and third pipe fitting to communicate with first pipe fitting. The gas can enter the second and third pipe fittings and enter the first pipe fitting through the second and third pipe fittings, and then be discharged through the gas vent.

Further, the second pipe part comprises at least one second air inlet, the third pipe part comprises at least one third air inlet, and the second air inlet and the third air inlet are used for air inlet. The exhaust manifold assembly comprises a plurality of first pipelines, the second air inlet and the third air inlet are respectively communicated with one of the first pipelines, and the second air inlet and the third air inlet are communicated with different first pipelines, so that gas in the second pipe fitting and the third pipe fitting can be discharged through different first pipelines. Specifically, the second inlet communicates with a first line passing through the second tube, and the third inlet communicates with a first line near the third tube.

Through set up second pipe fitting and third pipe fitting in exhaust pipe subassembly to communicate second pipe fitting and third pipe fitting respectively in the lateral wall of first pipe fitting both sides, thereby increase the gas flow path in the exhaust manifold subassembly, make the exhaust manifold subassembly can be more conveniently connect other devices outward, exhaust the gas side by side. Through connecting second pipe fitting and third pipe fitting in different first pipelines, discharge the gas in second pipe fitting and the third pipe fitting through different first pipelines, avoid gas to concentrate on a first pipeline and lead to the too high and then damage the problem of fracture of this first pipeline atmospheric pressure.

In the above technical solution, further, the first pipe fitting includes: the first connecting section is arranged at the connecting part of the first pipe fitting and the second pipe fitting, and the second pipe fitting is inserted into the first connecting section; the second connecting section is arranged at the connecting position of the first pipe fitting and the third pipe fitting, and the third pipe fitting is inserted into the second connecting section.

In this technical solution, in order to facilitate the connection of the second and third pipe elements to the first pipe element, a first connection section and a second connection section are provided on the first pipe element. Specifically, the first connecting section is arranged at the joint of the first pipe fitting and the second pipe fitting, and the second connecting section is arranged at the joint of the first pipe fitting and the third pipe fitting. The inner diameter of the first connection section is larger than the inner diameter of the first tube element at the location where the first connection section is connected, i.e. the inner diameter of the first tube element at the location of the first connection section is increased. The second pipe fitting is inserted into the first connecting section, so that the second pipe fitting is connected with the first pipe fitting.

The second coupling section has an inner diameter larger than the inner diameter of the first pipe element at the location where the second coupling section is connected, i.e. the inner diameter of the first pipe element increases somewhat at the location of the second coupling section. The third pipe fitting is inserted into the second connecting section, so that the third pipe fitting is connected with the first pipe fitting.

Through set up second linkage segment and third linkage segment in first pipe fitting to can realize the connection of first pipe fitting and second pipe fitting through the second linkage segment, realize the connection of first pipe fitting and third pipe fitting through the third linkage segment.

In the above technical solution, further, a first distance exists between the end of the second pipe connected to the first pipe and the end of the first connecting section far away from the second pipe; a second distance exists between the end of the third pipe fitting connected to the first pipe fitting and the end of the second connecting section far away from the third pipe fitting; the first distance and the second distance are both greater than 2mm and less than 6 mm.

In this technical scheme, set up first distance between the tip that the second pipe fitting is connected in first pipe fitting and the tip that the second pipe fitting is kept away from to first linkage segment, set up the second distance between the tip that the third pipe fitting is connected in first pipe fitting and the tip that the third pipe fitting is kept away from to the second linkage segment, promptly, the tip of second pipe fitting and the tip of third pipe fitting do not directly offset with the inside wall of first pipe fitting. It can understand, because the gas temperature in the exhaust manifold subassembly is higher, the inflation phenomenon can appear in first pipe fitting, second pipe fitting and third pipe fitting under high-temperature gas's effect, through setting up first distance and second distance, can reserve the inflation space for first pipe fitting, second pipe fitting and third pipe fitting to avoid first pipe fitting, second pipe fitting and third pipe fitting because inflation extrusion is impaired.

Specifically, the first distance and the second distance are both greater than 2mm and less than 6 mm.

The expansion space can be reserved for the first pipe fitting, the second pipe fitting and the third pipe fitting to avoid the damage of the first pipe fitting, the second pipe fitting and the third pipe fitting due to expansion extrusion.

In the above technical solution, further, the exhaust manifold assembly further includes a first reservoir disposed at the first connecting section, and at least a portion of the first reservoir is located between an end of the second pipe and an end of the first connecting section away from the second pipe; and the second liquid storage tank is arranged on the second connecting section, and at least part of the second liquid storage tank is positioned between the end part of the third pipe fitting and the end part of the second connecting section far away from the third pipe fitting.

In the technical scheme, the exhaust manifold assembly is further provided with a first liquid storage tank and a second liquid storage tank which are used for storing condensed water and other liquid impurities generated in the exhaust manifold assembly so as to prevent liquid from flowing out of the exhaust manifold assembly to influence other devices. Specifically, the first reservoir is arranged at the first connecting section, and at least part of the first reservoir is positioned between the end part of the second pipe fitting and the end part of the first connecting section far away from the second pipe fitting, so that the liquid in the first pipe fitting and the second pipe fitting can flow into the first reservoir; the second liquid storage tank is arranged on the second connecting section, and at least part of the second liquid storage tank is positioned between the end part of the third pipe fitting and the end part of the first connecting section far away from the third pipe fitting, so that the liquid in the first pipe fitting and the third pipe fitting can flow into the second liquid storage tank.

Through set up first reservoir and second reservoir in exhaust manifold subassembly to make produced condensate water and other liquid impurity in the exhaust manifold subassembly can flow into first reservoir and second reservoir, in order to avoid liquid outflow exhaust manifold subassembly to produce the influence to other devices.

In the above technical solution, further, any one of the first air inlets, any one of the second air inlets, and any one of the third air inlets are provided with mounting portions.

In the technical scheme, in order to install and position the exhaust manifold assembly, a plurality of installation parts are further arranged in the exhaust manifold assembly and used for installing and positioning the exhaust manifold assembly. Specifically, the second pipe fitting includes a plurality of second air inlets, and the third pipe fitting includes a plurality of third air inlets, and gas can enter the second pipe fitting through the second air inlets, and enter the third pipe fitting through the third air inlets. Any one of the first air inlet, any one of the second air inlet and any one of the third air inlet are provided with mounting portions.

The installation parts are arranged on any first air inlet, any second air inlet and any third air inlet, so that the exhaust manifold assembly can be installed and positioned through the installation parts.

In the above technical solution, further, any one of the mounting portions includes: the exhaust manifold assembly comprises a plurality of mounting holes and a plurality of mounting pieces, wherein the mounting holes and the mounting pieces are arranged in a one-to-one correspondence mode, and the mounting pieces are inserted into the mounting holes and used for fixing the exhaust manifold assembly.

In this technical scheme, arbitrary installation department includes a plurality of mounting holes and a plurality of installed part, and the mounting hole sets up with the installed part one-to-one. Through inserting the installed part in the mounting hole, can realize the installation of exhaust pipe subassembly through the cooperation of installed part and mounting hole and fix.

The exhaust manifold assembly is fixedly installed by matching the installation piece with the installation holes through arranging the installation holes and the installation pieces matched with the installation holes in any installation part.

In above-mentioned technical scheme, further, the mounting hole is the bolt hole, and the installed part is the bolt, and the internal diameter of bolt hole is 1.2 times to 1.5 times of the external diameter of bolt.

In this technical scheme, the mounting hole is the bolt hole, and the installed part is the bolt, inserts the bolt in the bolt hole, installs fixedly exhaust manifold subassembly through the cooperation between the two. It is understood that the bolt expands in a heated state of the exhaust manifold assembly, and in order to avoid interference between the bolt and the bolt hole in the expanded state, the inner diameter of the bolt hole is set to be 1.2 to 1.5 times the outer diameter of the bolt, so as to reserve an expansion space of the bolt.

Through setting up the mounting hole into the bolt hole, set up the installed part into the bolt to set up the internal diameter of bolt hole for 1.2 times to 1.5 times of the external diameter of bolt, with the expansion space of reserving the bolt, even also can not take place to interfere with between the bolt hole under the bolt expansion's of being heated state.

In the above technical solution, further, the exhaust manifold assembly further includes: and a plurality of positioning holes respectively arranged in the plurality of mounting parts arranged in the second air inlet and close to the first pipe fitting, the plurality of mounting parts arranged in the third air inlet and close to the first pipe fitting, and any one of the mounting parts arranged in the first air inlet.

In the technical scheme, a plurality of positioning holes are further arranged in the exhaust manifold assembly, the aperture of each positioning hole is smaller than that of each mounting hole, the positioning holes are matched with the positioning pieces, and the gap between the positioning holes and the positioning pieces is small. Among a plurality of installations, the second air inlet is located to the part, the third air inlet is located to the part, first air inlet is located to the part, a plurality of locating holes are located respectively and are close to the installation department of first pipe fitting among a plurality of installations of locating the second air inlet, and a plurality of installations of locating the third air inlet are close to the installation department of first pipe fitting, and the installation department of first air inlet is located to arbitrary one, when guaranteeing that second pipe fitting and third pipe fitting are heated the inflation, can face the direction that deviates from first pipe fitting and take place to warp, and can not face first pipe fitting direction and take place to warp, avoid causing the extrusion to first pipe fitting.

Through the installation department that is close to first pipe fitting in a plurality of installation departments of locating the second air inlet, and a plurality of installation departments of locating the installation department of third air inlet and being close to first pipe fitting set up the locating hole in the installation department of locating first air inlet, can make second pipe fitting and third pipe fitting when thermal expansion, can face the direction that deviates from first pipe fitting and take place to warp, and can not face first pipe fitting direction and take place to warp, avoid causing the extrusion to first pipe fitting.

The second aspect of the utility model also proposes an engine comprising the exhaust manifold assembly proposed by the first aspect of the utility model.

The second aspect of the present invention provides an engine including the exhaust manifold assembly set forth in the first aspect of the present invention, and therefore having all of the benefits of the exhaust manifold assembly.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 shows one of the schematic structural views of an exhaust manifold assembly of one embodiment of the present invention;

FIG. 2 illustrates a second schematic structural view of an exhaust manifold assembly of an embodiment of the present invention;

FIG. 3 illustrates a third schematic structural view of an exhaust manifold assembly in accordance with an embodiment of the present invention;

FIG. 4 illustrates a cross-sectional view of an exhaust manifold assembly according to an embodiment of the present invention;

figure 5 shows a cross-sectional view of a first tube of one embodiment of the utility model.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:

100 exhaust manifold assembly, 110 first pipe fitting, 111 first air inlet, 112 exhaust port, 113 first pipeline, 114 first connecting section, 115 second connecting section, 116 first reservoir, 117 second reservoir, 120 second pipe fitting, 121 second air inlet, 130 third pipe fitting, 131 third air inlet, 140 mounting part, 141 mounting hole and 142 positioning hole.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

An exhaust manifold assembly 100 and an engine provided according to some embodiments of the present invention are described below with reference to fig. 1 to 5.

The first embodiment is as follows:

referring to fig. 1 and 5, an embodiment of a first aspect of the present invention provides an exhaust manifold assembly 100 including: a first pipe 110 comprising at least two first conduits 113; a first air inlet 111 and an air outlet 112 are respectively arranged at two ends of any first pipeline 113; at least two first air inlets 111 are adjacently arranged, and at least two air outlets 112 are adjacently arranged; the pipe bodies of any two adjacent first pipelines 113 are connected smoothly, and any two adjacent first pipelines 113 are not communicated with each other.

The exhaust manifold assembly 100 provided herein is used to form an exhaust passage to exhaust gas. The exhaust manifold assembly 100 includes a first pipe member 110, and the first pipe member 110 includes at least two first pipes 113 therein. In order to realize the circulation of gas in the first pipe 113, a first gas inlet 111 and a gas outlet 112 are provided at both ends of any one of the first pipes 113, respectively.

The gas may enter the first pipe 110 from the plurality of first gas inlets 111, flow through the first pipe 113 corresponding to each first gas inlet 111, and then be discharged out of the exhaust manifold assembly 100 through the gas outlet 112 corresponding to each first gas inlet 111. Any two adjacent first pipelines 113 are not communicated with each other, that is, gas can only flow in the first pipeline 113 corresponding to the first inlet 111 into which the gas flows, and can only be discharged from the outlet 112 corresponding to the first pipeline 113, and gas cannot flow between the two first pipelines 113. At least two first air inlets 111 are disposed adjacently, and at least two air outlets 112 are disposed adjacently, that is, all the first air inlets 111 are disposed on the same side, and all the air outlets 112 are disposed on the same side. Specifically, the plurality of exhaust ports 112 may be integrally disposed on the same component, and the plurality of exhaust ports 112 may be collectively disposed, so that the plurality of exhaust ports 112 may be conveniently connected to other devices. Further, the plurality of first air inlets 111 can be arranged in a spaced manner, that is, the plurality of first air inlets 111 are far away from each other, and a certain distance is left between any two adjacent first air inlets 111, so that a sufficient installation space is reserved, and the connection between the first air inlets 111 and other devices is facilitated.

Further, the distance between any two adjacent exhaust holes is smaller than the distance between two corresponding first intake ports 111, that is, towards the exhaust port 112, any two adjacent first pipelines 113 are close to each other. The tube bodies of any adjacent two first tubes 113 are smoothly connected at a position close to the exhaust port 112. That is, in the exhaust manifold assembly 100 according to the present disclosure, no reinforcing rib is disposed between any two adjacent first pipes 113, and the two connected first pipes 113 are still in a state of being isolated from each other and are not communicated with each other. Because no reinforcing rib is arranged between two adjacent first pipelines 113, the space between the two pipelines is increased, and the thicker pipe wall of the first pipeline 113 can be accommodated.

Because exhaust manifold assembly 100 in this application can be used for high-temperature gas's emission, high-temperature gas flows into first pipeline 113, and the pipe wall of first pipeline 113 expands under the high temperature effect, leads to the pipe wall fracture easily, in order to improve first pipeline 113's intensity, with first pipeline 113's pipe wall thickening, compare in exhaust manifold assembly 100 who sets up the strengthening rib structure, first pipeline 113's pipe wall in this application can thicken 6mm to 10 mm. Because the wall thickness of the first pipeline 113 is increased, the overall strength of the first pipeline 113 is improved, and the possibility that the first pipeline 113 is expanded and cracked under the action of high-temperature gas is reduced. And, compare in prior art and promote first pipeline 113's structure through the strengthening rib structure, 113 intensity of first pipeline are improved through the mode of thickening pipe wall to this application, have avoided strengthening rib department stress concentration's problem, have further optimized the product structure.

Through setting up to smooth connection's structure between the body with arbitrary two adjacent first pipelines 113 to avoided setting up the strengthening rib structure between two first pipelines 113, increased the space between two adjacent first pipelines 113, thereby can be with the pipe wall thickening of first pipeline 113, improve first pipeline 113's bulk strength, reduced first pipeline 113 expansion cracking's under the high-temperature gas effect possibility. And, compare in prior art and promote first pipeline 113's structure through the strengthening rib structure, 113 intensity of first pipeline are improved through the mode of thickening pipe wall to this application, have avoided strengthening rib department stress concentration's problem, have further optimized the product structure.

Example two:

referring to fig. 1, 2, 3 and 4, in a specific embodiment based on the first embodiment, the exhaust manifold assembly 100 further includes: a second pipe member 120 connected to a sidewall of the first pipe member 110; a third pipe member 130 connected to a side wall of the first pipe member 110 on a side facing away from the second pipe member 120; the second pipe member 120 includes at least one second inlet port 121, the third pipe member 130 includes at least one third inlet port 131, the second inlet port 121 communicates with the first pipe 113 adjacent to the second pipe member 120, and the third inlet port 131 communicates with the first pipe 113 adjacent to the third pipe member 130.

In this embodiment, the exhaust manifold further includes a second pipe member 120 and a third pipe member 130, and the second pipe member 120 and the third pipe member 130 are respectively provided at sidewalls of both sides of the first pipe member 110 and communicate with the first pipe member 110. The gas can enter the second and third pipes 120, 130 and enter the first pipe 110 through the second and third pipes 120, 130 to be discharged through the gas outlet 112.

Further, the second pipe member 120 includes at least one second air inlet 121, the third pipe member 130 includes at least one third air inlet 131, and the second air inlet 121 and the third air inlet 131 are used for air inlet. The exhaust manifold assembly 100 includes a plurality of first pipes 113 therein, the second and third gas inlets 121 and 131 are respectively communicated with one of the plurality of first pipes 113, and the second and third gas inlets 121 and 131 are communicated with different first pipes 113, so that the gas in the second and third pipes 120 and 130 can be discharged through the different first pipes 113. Specifically, the second air inlet 121 communicates with the first pipe 113 passing through the second pipe 120, and the third air inlet 131 communicates with the first pipe 113 near the third pipe 130.

Through set up second pipe fitting 120 and third pipe fitting 130 in the exhaust pipe subassembly to with second pipe fitting 120 and third pipe fitting 130 communicate respectively in the lateral wall of first pipe fitting 110 both sides, thereby increase the gas flow path in exhaust manifold subassembly 100, make exhaust manifold subassembly 100 can be more conveniently external other devices, discharge the gas. By connecting the second pipe 120 and the third pipe 130 to different first pipelines 113 and discharging gas in the second pipe 120 and the third pipe 130 through different first pipelines 113, the problem that the gas is concentrated in one first pipeline 113 to cause the gas pressure of the first pipeline 113 to be too high and further damage and crack is avoided.

Example three:

in a specific embodiment based on any of the above embodiments, as shown in fig. 4, the first pipe member 110 includes: the first connecting section 114 is arranged at the joint of the first pipe 110 and the second pipe 120, and the second pipe 120 is inserted into the first connecting section 114; the second connecting section 115 is disposed at a connection position of the first pipe 110 and the third pipe 130, and the third pipe 130 is inserted into the second connecting section 115.

In this embodiment, in order to facilitate the connection of the second and third pipe elements 120 and 130 to the first pipe element 110, the first and second connection sections 114 and 115 are provided on the first pipe element 110. Specifically, the first connecting section 114 is disposed at the connection position of the first pipe 110 and the second pipe 120, and the second connecting section 115 is disposed at the connection position of the first pipe 110 and the third pipe 130. The first connection section 114 has an inner diameter larger than that of the first pipe member 110 at a position connected to the first connection section 114, that is, the inner diameter of the first pipe member 110 is increased at the position of the first connection section 114. The second pipe member 120 is inserted into the first connection section 114, thereby accomplishing the connection of the second pipe member 120 with the first pipe member 110.

The second coupling section 115 has an inner diameter larger than that of the first pipe element 110 at a position where the second coupling section 115 is coupled, that is, the inner diameter of the first pipe element 110 is increased at the position of the second coupling section 115. The third pipe member 130 is inserted into the second connection section 115, thereby accomplishing the connection of the third pipe member 130 with the first pipe member 110.

By providing the second connection section 115 and the third connection section in the first pipe member 110, the first pipe member 110 and the second pipe member 120 can be connected by the second connection section 115, and the first pipe member 110 and the third pipe member 130 can be connected by the third connection section.

Further, there is a first distance between the end of the second pipe element 120 connected to the first pipe element 110 and the end of the first connection section 114 remote from the second pipe element 120; a second distance exists between the end of the third pipe element 130 connected to the first pipe element 110 and the end of the second connecting section 115 remote from the third pipe element 130; the first distance and the second distance are both greater than 2mm and less than 6 mm.

In this embodiment, a first distance is provided between the end of the second pipe element 120 connected to the first pipe element 110 and the end of the first connecting section 114 remote from the second pipe element 120, and a second distance is provided between the end of the third pipe element 130 connected to the first pipe element 110 and the end of the second connecting section 115 remote from the third pipe element 130, i.e. the ends of the second pipe element 120 and the third pipe element 130 do not directly abut against the wall surface inside the first pipe element 110. It can be understood that, due to the high temperature of the gas in the exhaust manifold assembly 100, the first, second and third pipe members 110, 120 and 130 may expand under the effect of the high temperature gas, and by setting the first and second distances, an expansion space may be reserved for the first, second and third pipe members 110, 120 and 130 to prevent the first, second and third pipe members 110, 120 and 130 from being damaged due to expansion and extrusion.

Specifically, the first distance and the second distance are both greater than 2mm and less than 6 mm.

By providing a first distance between the end of the second pipe element 120 connected to the first pipe element 110 and the end of the first connecting section 114 remote from the second pipe element 120 and a second distance between the end of the third pipe element 130 connected to the first pipe element 110 and the end of the second connecting section 115 remote from the third pipe element 130, an expansion space can be reserved for the first, second and third pipe elements 110, 120, 130 to avoid the first, second and third pipe elements 110, 120, 130 from being damaged by expansion and extrusion.

Example four:

in a specific embodiment based on any of the above embodiments, as shown in fig. 4 and 5, the exhaust manifold assembly 100 further includes a first liquid storage tank 116 disposed at the first connecting section 114, and at least a portion of the first liquid storage tank 116 is located between an end of the second pipe 120 and an end of the first connecting section 114 away from the second pipe 120; and the second liquid storage tank 117 is arranged on the second connecting section 115, and at least part of the second liquid storage tank 117 is positioned between the end part of the third pipe fitting 130 and the end part of the second connecting section 115 far away from the third pipe fitting 130.

In this embodiment, the exhaust manifold assembly 100 is further provided with a first reservoir 116 and a second reservoir 117 for storing condensed water and other liquid impurities generated in the exhaust manifold assembly 100 to prevent the liquid from flowing out of the exhaust manifold assembly 100 to affect other devices. Specifically, the first reservoir 116 is disposed at the first connecting section 114, and at least a part of the first reservoir 116 is located between an end of the second pipe 120 and an end of the first connecting section 114 far away from the second pipe 120, so that the liquid in the first pipe 110 and the second pipe 120 can flow into the first reservoir 116; the second reservoir 117 is provided at the second connecting section 115, and at least a part of the second reservoir 117 is located between an end of the third pipe member 130 and an end of the first connecting section 114 remote from the third pipe member 130, so that the liquid in the first pipe member 110 and the third pipe member 130 can flow into the second reservoir 117.

By providing the first reservoir 116 and the second reservoir 117 in the exhaust manifold assembly 100, condensed water and other liquid impurities generated in the exhaust manifold assembly 100 can flow into the first reservoir 116 and the second reservoir 117, so as to prevent the liquid from flowing out of the exhaust manifold assembly 100 to affect other devices.

Example five:

in a specific embodiment based on any of the above embodiments, as shown in fig. 2, any one of the first air inlets 111, any one of the second air inlets 121, and any one of the third air inlets 131 is provided with a mounting portion 140.

In this embodiment, in order to mount and position the exhaust manifold assembly 100, a plurality of mounting portions 140 are further provided in the exhaust manifold assembly 100 for mounting and positioning the exhaust manifold assembly 100. Specifically, the second pipe 120 includes a plurality of second gas inlets 121, and the third pipe 130 includes a plurality of third gas inlets 131, and gas can enter the second pipe 120 through the second gas inlets 121 and enter the third pipe 130 through the third gas inlets 131. Any one of the first air inlets 111, any one of the second air inlets 121, and any one of the third air inlets 131 is provided with a mounting portion 140.

By providing the mounting portions 140 at any one of the first intake ports 111, any one of the second intake ports 121, and any one of the third intake ports 131, the exhaust manifold assembly 100 can be mounted and positioned by the mounting portions 140.

Example six:

in a specific embodiment based on any of the above embodiments, as shown in fig. 2, any of the mounting portions 140 includes: the exhaust manifold assembly 100 includes a plurality of mounting holes 141, and a plurality of mounting members, wherein the mounting holes 141 are arranged in one-to-one correspondence to the mounting members, and the mounting members are inserted into the mounting holes 141 and used for fixing the exhaust manifold assembly 100.

In this embodiment, any of the mounting portions 140 includes a plurality of mounting holes 141 and a plurality of mounting members, and the mounting holes 141 are provided in one-to-one correspondence with the mounting members. By inserting the mounting member into the mounting hole 141, the mounting and fixing of the exhaust gas pipe assembly can be achieved by the fitting of the mounting member with the mounting hole 141.

By providing a plurality of mounting holes 141 and a plurality of mounting members adapted to the plurality of mounting holes 141 in any one of the mounting portions 140, the mounting and fixing of the exhaust manifold assembly 100 is achieved by the fitting of the mounting members to the mounting holes 141.

Further, the mounting hole 141 is a bolt hole, the mounting member is a bolt, and the inner diameter of the bolt hole is 1.2 times to 1.5 times the outer diameter of the bolt.

In this embodiment, the mounting holes 141 are bolt holes, and the mounting members are bolts, which are inserted into the bolt holes, and the exhaust manifold assembly 100 is mounted and fixed by engagement therebetween. It is understood that the bolt expands in a heated state of the exhaust manifold assembly 100, and in order to avoid interference between the bolt and the bolt hole in the expanded state, the inner diameter of the bolt hole is set to be 1.2 to 1.5 times the outer diameter of the bolt, so as to reserve an expansion space of the bolt.

Through setting up mounting hole 141 as the bolt hole, set up the installed part as the bolt to set up the internal diameter of bolt hole 1.2 times to 1.5 times of the external diameter of bolt, with the expansion space of reserving the bolt, even also can not take place to interfere with between the bolt hole under the bolt expansion's of being heated state.

Example seven:

in a specific embodiment based on any of the above embodiments, as shown in fig. 2, the exhaust manifold assembly 100 further includes: a plurality of positioning holes 142 respectively provided in the plurality of mounting parts 140 provided in the second air inlet port 121 adjacent to the first pipe member 110, the plurality of mounting parts 140 provided in the third air inlet port 131 adjacent to the first pipe member 110, and any one of the mounting parts 140 provided in the first air inlet port 111.

In this embodiment, the exhaust manifold assembly 100 further has a plurality of positioning holes 142, the diameter of the positioning holes 142 is smaller than that of the mounting holes 141, and the positioning holes 142 and the positioning members are matched with each other with a small gap therebetween. Among the plurality of installation portions 140, the part is located the second air inlet 121, the part is located the third air inlet 131, the part is located first air inlet 111, a plurality of locating holes 142 are located a plurality of installation portions 140 that are close to first pipe fitting 110 in locating the installation portion 140 of second air inlet 121 respectively, and a plurality of installation portions 140 that are close to first pipe fitting 110 in locating the installation portion 140 of third air inlet 131, and the installation portion 140 of first air inlet 111 is located to arbitrary one, when guaranteeing that second pipe fitting 120 and third pipe fitting 130 are heated and expanded, can warp towards the direction that deviates from first pipe fitting 110, and can not warp towards first pipe fitting 110 direction, avoid causing the extrusion to first pipe fitting 110.

Through being close to the installation department 140 of first pipe fitting 110 in a plurality of installation departments 140 of locating second air inlet 121, and a plurality of installation departments 140 of locating third air inlet 131 that are close to first pipe fitting 110 in the installation department 140, and arbitrary one is located and is set up locating hole 142 in the installation department 140 of first air inlet 111, can make second pipe fitting 120 and third pipe fitting 130 when the thermal expansion, can take place to warp towards the direction that deviates from first pipe fitting 110, and can not take place to warp towards first pipe fitting 110 direction, avoid causing the extrusion to first pipe fitting 110.

Example eight:

the second aspect of the present invention also proposes an engine comprising the exhaust manifold assembly 100 proposed by the first aspect of the present invention.

The second aspect of the present invention provides an engine including the exhaust manifold assembly 100 set forth in the first aspect of the present invention, and therefore having all of the benefits of the exhaust manifold assembly 100.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An exhaust manifold assembly, comprising:

a first tubular comprising at least two first conduits;

a first air inlet and an air outlet are respectively arranged at two ends of any one first pipeline;

at least two first air inlets are arranged adjacently, and at least two air outlets are arranged adjacently;

the pipe bodies of any two adjacent first pipelines are connected smoothly, and the two adjacent first pipelines are not communicated with each other.

2. The exhaust manifold assembly according to claim 1, further comprising:

a second pipe connected to a sidewall of the first pipe;

the third pipe fitting is connected to the side wall of one side, away from the second pipe fitting, of the first pipe fitting;

the second pipe fitting comprises at least one second air inlet, the third pipe fitting comprises at least one third air inlet, the second air inlet is communicated with a first pipeline close to the second pipe fitting, and the third air inlet is communicated with a first pipeline close to the third pipe fitting.

3. The exhaust manifold assembly according to claim 2, wherein the first pipe member comprises:

the first connecting section is arranged at the connecting position of the first pipe fitting and the second pipe fitting, and the second pipe fitting is inserted into the first connecting section;

the second connecting section is arranged on the first pipe fitting and the third pipe fitting, and the third pipe fitting is inserted into the second connecting section.

4. The exhaust manifold assembly according to claim 3,

a first distance exists between the end of the second pipe fitting connected to the first pipe fitting and the end of the first connecting section far away from the second pipe fitting;

a second distance exists between the end of the third pipe fitting connected to the first pipe fitting and the end of the second connecting section away from the third pipe fitting;

the first distance and the second distance are both greater than 2mm and less than 6 mm.

5. The exhaust manifold assembly according to claim 3, further comprising:

the first liquid storage tank is arranged on the first connecting section, and at least part of the first liquid storage tank is positioned between the end part of the second pipe fitting and the end part of the first connecting section far away from the second pipe fitting;

and the second liquid storage tank is arranged on the second connecting section, and at least part of the second liquid storage tank is positioned between the end part of the third pipe fitting and the end part of the second connecting section far away from the third pipe fitting.

6. The exhaust manifold assembly according to claim 2,

and any one of the first air inlet, any one of the second air inlet and any one of the third air inlet is provided with a mounting part.

7. The exhaust manifold assembly according to claim 6, wherein any of the mounting portions comprises:

a plurality of mounting holes are arranged on the base plate,

the mounting holes are arranged in one-to-one correspondence with the mounting pieces, and the mounting pieces are inserted into the mounting holes and used for fixing the exhaust manifold assembly.

8. The exhaust manifold assembly according to claim 7,

the mounting hole is a bolt hole, the mounting piece is a bolt, and the inner diameter of the bolt hole is 1.2 times to 1.5 times of the outer diameter of the bolt.

9. The exhaust manifold assembly according to claim 6, further comprising:

and the positioning holes are respectively arranged in the mounting parts of the second air inlets and are close to the mounting parts of the first pipe fittings, and the positioning holes are arranged in the mounting parts of the third air inlets and are close to the mounting parts of the first pipe fittings, and any one of the positioning holes is arranged in the mounting parts of the first air inlets.

10. An engine, comprising:

an exhaust manifold assembly according to any of claims 1 to 9.

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