CN220791346U - Gasket structure, exhaust pipe and engine - Google Patents
Gasket structure, exhaust pipe and engine Download PDFInfo
- Publication number
- CN220791346U CN220791346U CN202322395132.6U CN202322395132U CN220791346U CN 220791346 U CN220791346 U CN 220791346U CN 202322395132 U CN202322395132 U CN 202322395132U CN 220791346 U CN220791346 U CN 220791346U
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- gasket
- exhaust
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- wall
- exhaust manifold
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- 238000002347 injection Methods 0.000 claims abstract description 149
- 239000007924 injection Substances 0.000 claims abstract description 149
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 238000009434 installation Methods 0.000 claims description 28
- 125000006850 spacer group Chemical group 0.000 claims description 15
- 238000010276 construction Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 abstract description 13
- 210000001503 joint Anatomy 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model provides a gasket structure, an exhaust pipe and an engine, wherein at least part of the gasket structure is arranged between an exhaust manifold and an expansion joint, the exhaust manifold is in butt joint with the expansion joint, and the gasket structure comprises a gasket part and an injection part. The gasket structure is provided with a gasket inner ring; the outer wall of the injection part is fixedly connected with the inner ring of the gasket, the injection part is provided with an injection channel, and two ends of the injection channel are respectively communicated with an exhaust channel of the exhaust manifold and an expansion channel of the expansion joint. The sealing performance between the exhaust manifold and the expansion joint is ensured by arranging a gasket component; the flow path of the liquid is changed by arranging the injection part, so that the liquid flows in the injection channel, the liquid volume is prevented from being between the gasket structure and the exhaust manifold and/or between the gasket structure and the expansion joint, the problem that lubricating oil in the prior art is accumulated on the exhaust pipe gasket and/or the exhaust manifold is solved, and the problem that lubricating oil leaks when an engine runs at idle speed for a long time is avoided.
Description
Technical Field
The utility model relates to the technical field of exhaust pipes, in particular to a gasket structure, an exhaust pipe and an engine.
Background
Aiming at the particularities of certain market segments, such as fishing boats, automobile cranes and the like, an engine needs to run for a long time under an idle working condition, and because the vibration of a piston ring can cause the increase of lubricating oil pumped into a combustion chamber, the lubricating oil moves up and down along with a piston, and then enters an exhaust manifold through an exhaust valve. At this time, the temperature of exhaust in the cylinder is low, so that the lubricating oil cannot be completely combusted, and the temperature in the exhaust pipe is low, so that the lubricating oil is condensed, and is accumulated on the exhaust manifold, and then oil leakage faults are generated during long-term low-load operation.
In the prior art, the occurrence of oil leakage is reduced by providing an exhaust pipe gasket at the joint of the exhaust manifold. As shown in fig. 1, the exhaust pipe gasket is often of a single-layer or multi-layer structure, and includes a gasket inner ring 11', a gasket outer ring 12', and a gasket plate 13'.
However, due to variable operating conditions of the engine, the seals between the exhaust manifold and the cylinder head, adjacent exhaust manifold fail, resulting in soot and lubricant leakage.
Disclosure of Invention
The main object of the present utility model is to provide a gasket structure, an exhaust pipe and an engine, which solve the problem that lubricating oil in the prior art is accumulated on an exhaust pipe gasket and/or an exhaust manifold.
In order to achieve the above object, according to a first aspect of the present utility model, there is provided a gasket structure, at least part of which is for being disposed between an exhaust manifold and an expansion joint, the exhaust manifold being in butt joint with the expansion joint, the gasket structure comprising: a spacer member having a spacer inner ring; the outer wall of the injection part is fixedly connected with the inner ring of the gasket; the injection part is provided with an injection channel, two ends of the injection channel are respectively communicated with an exhaust channel of the exhaust manifold and an expansion channel of the expansion joint, and a flow path of liquid is changed through the injection part so that the liquid flows in the injection channel.
Further, the injection part comprises a first connecting section, a second connecting section and a gasket connecting section which are sequentially connected along the extending direction of the injection part; the first connecting section is arranged in the exhaust passage and communicated with the exhaust passage; the second connecting section is arranged in the expansion channel and communicated with the expansion channel; the outer wall surface of the gasket connecting section is fixedly connected with the inner ring of the gasket; the size of the flow section of the injection channel is gradually reduced along the direction from the first connecting section to the second connecting section.
Further, the outer wall surface of the injection part is cylindrical; the outer circumference of the outer wall surface of the injection part is smaller than the circumference of the inner wall surface of the exhaust channel, so that a first installation gap exists between the outer wall of the injection part and the inner wall of the exhaust channel; the outer circumference of the outer wall surface of the injection part is smaller than the circumference of the inner wall surface of the expansion channel, so that a second installation gap exists between the outer wall of the injection part and the inner wall of the exhaust channel; the inner wall surface of the gasket inner ring is circular so as to be matched with the shape of the outer wall surface of the injection part; the outer perimeter of the outer wall surface of the injection part is matched with the perimeter of the inner wall surface of the gasket inner ring, so that the inner wall of the gasket inner ring is attached to the outer wall of the injection part.
Further, along the direction from the first connecting section to the second connecting section, the perimeter of the outer wall surface of the injection part is gradually reduced; the outer circumference of the outer wall surface of one side of the first connecting section, which is far away from the gasket connecting section, is smaller than the circumference of the inner wall surface of the exhaust channel, so that a first installation gap exists between the outer wall of the injection part and the inner wall of the exhaust channel; the outer circumference of the outer wall surface of the second connecting section, which is close to one side of the gasket connecting section, is smaller than the circumference of the inner wall surface of the expansion channel, so that a second installation gap exists between the outer wall of the injection part and the inner wall of the exhaust channel; the shape and the outer circumference of the outer wall surface of the gasket connecting section are matched with the shape and the circumference of the inner wall surface of the gasket inner ring, so that the inner wall of the gasket inner ring is attached to the outer wall of the gasket connecting section.
Further, the gasket part further comprises a gasket outer ring and a gasket plate, and the gasket plate is formed between the gasket outer ring and the gasket inner ring; the gasket plate is clamped between the exhaust manifold and the expansion joint, at least part of the gasket plate is arranged between the first installation gap and the second installation gap, so that a first closed cavity is formed between the first installation gap and the gasket plate, and a second closed cavity is formed between the second installation gap and the gasket plate.
Further, the gasket part is made of metal; the injection part is of a tubular structure made of metal; the gasket part is connected with the injection part through welding.
According to a second aspect of the present utility model, there is provided an exhaust pipe including an exhaust manifold and an expansion joint, the exhaust pipe further comprising: the gasket construction described above, at least a portion of which is adapted to be disposed between the exhaust manifold and the expansion joint.
Further, the exhaust pipe further includes a fixing member, wherein: one end of the fixed part is connected with the expansion joint, and the other end of the fixed part is connected with the outer wall of the injection part of the gasket structure so as to fixedly connect the injection part with the expansion joint; and/or one end of the fixing part is connected with the exhaust manifold, and the other end of the fixing part is connected with the outer wall of the injection part of the gasket structure so as to fixedly connect the injection part with the exhaust manifold.
According to a third aspect of the present utility model, there is provided an engine comprising an exhaust manifold and an expansion joint, the engine further comprising: the gasket construction described above, at least a portion of which is adapted to be disposed between the exhaust manifold and the expansion joint.
Further, two exhaust manifolds are provided, wherein the two exhaust manifolds comprise a first exhaust manifold and a second exhaust manifold, and the first exhaust manifold and the second exhaust manifold are respectively in butt joint with two ends of the expansion joint; the gasket structures are two, at least a portion of one gasket structure is for being disposed between the first exhaust manifold and the expansion joint, and at least a portion of the other gasket structure is for being disposed between the second exhaust manifold and the expansion joint.
By applying the technical scheme, the utility model provides a gasket structure, an exhaust pipe and an engine, wherein the exhaust pipe and the engine comprise a gasket structure, an exhaust manifold and an expansion joint, at least part of the gasket structure is arranged between the exhaust manifold and the expansion joint, the exhaust manifold is in butt joint with the expansion joint, and the gasket structure comprises a gasket part and an injection part. The gasket structure is provided with a gasket inner ring; the outer wall of the injection part is fixedly connected with the inner ring of the gasket, the injection part is provided with an injection channel, and two ends of the injection channel are respectively communicated with an exhaust channel of the exhaust manifold and an expansion channel of the expansion joint. The sealing performance between the exhaust manifold and the expansion joint is ensured by arranging a gasket component; the flow path of the liquid is changed through the injection part, so that the liquid flows in the injection passage, the liquid volume is prevented from being between the gasket structure and the exhaust manifold and/or between the gasket structure and the expansion joint, the injection effect of the exhaust manifold is utilized to accelerate the air flow speed in the injection passage, the liquid entering the injection passage rapidly flows through the injection passage and the expansion passage, the problem that lubricating oil in the prior art is accumulated on the exhaust pipe gasket and/or the exhaust manifold is solved, and the problem that lubricating oil leaks when an engine runs at idle speed for a long time is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 shows a schematic structural view of an embodiment of an exhaust pipe gasket according to the prior art;
FIG. 2 shows a schematic overall construction of an embodiment of a gasket construction according to the utility model;
FIG. 3 shows a schematic structural view of an embodiment of an exhaust pipe according to the present utility model;
FIG. 4 shows a partial enlarged view at A of FIG. 3 in accordance with the present utility model; and
fig. 5 shows a schematic structural view of an embodiment of an engine according to the present utility model.
Wherein the above figures include the following reference numerals:
1. a gasket member; 11. a gasket inner ring; 12. a gasket outer ring; 13. a gasket plate; 2. an exhaust manifold; 21. an exhaust passage; 22. a first exhaust manifold; 23. a second exhaust manifold; 3. an expansion joint; 31. an expansion channel; 4. an ejector member; 41. an injection channel; 42. a first connection section; 43. a second connection section; 5. a first mounting gap; 6. a second mounting gap; 7. a fixing member;
11', a gasket inner ring; 12', a gasket outer ring; 13', spacer plate.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 5, the present utility model provides in a first aspect a gasket arrangement, at least part of which is arranged between an exhaust manifold 2 and an expansion joint 3, the exhaust manifold 2 being in abutment with the expansion joint 3, the gasket arrangement comprising a gasket part 1 and an ejector part 4. Wherein the spacer member 1 has a spacer inner ring 11; the outer wall of the injection part 4 is fixedly connected with the gasket inner ring 11; the injection part 4 is provided with an injection channel 41, two ends of the injection channel 41 are respectively communicated with the exhaust channel 21 of the exhaust manifold 2 and the expansion channel 31 of the expansion joint 3, and the flow path of liquid is changed through the injection part 4 so that the liquid flows in the injection channel 41.
The utility model provides a gasket structure which comprises a gasket part 1 and an injection part 4. The sealing performance between the exhaust manifold 2 and the expansion joint 3 is ensured by arranging the gasket component 1; the flow path of the liquid is changed by arranging the injection part 4, so that the liquid flows in the injection channel 41, thereby avoiding the liquid from accumulating between the gasket part 1 and the exhaust manifold 2 and/or between the gasket part 1 and the expansion joint 3, and accelerating the airflow flow speed in the injection channel 41 by utilizing the injection action of the exhaust manifold 2, so that the liquid entering the injection channel 41 rapidly flows through the injection channel 41 and the expansion channel 31, thereby solving the problem that lubricating oil in the prior art accumulates on the exhaust pipe gasket and/or the exhaust manifold, and further avoiding the problem that lubricating oil leaks when the engine runs at idle speed for a long time.
Specifically, in order to communicate both ends of the injection passage 41 with the exhaust passage 21 and the expansion passage 31, respectively, the injection member 4 includes a first connecting section 42, a second connecting section 43, and a gasket connecting section that are connected in order along the extending direction thereof; the first connecting section 42 is disposed in the exhaust passage 21 and communicates with the exhaust passage 21 such that the liquid in the exhaust passage 21 flows into the injection passage 41 and/or the liquid in the injection passage 41 flows into the exhaust passage 21; the second connecting section 43 is arranged in the expansion channel 31 and is communicated with the expansion channel 31, so that the liquid in the injection channel 41 flows into the expansion channel 31; the outer wall surface of the gasket connecting section is fixedly connected with the gasket inner ring 11, so that the gasket part 1 is fixedly connected with the injection part 4, and at least part of the gasket part 1 is clamped between the exhaust manifold 2 and the expansion joint 3, so that the injection part 4 is fixed on the inner sides of the exhaust channel 21 and the expansion channel 31, and the injection part 4 is prevented from being displaced in the working process.
The flow section of the injection channel 41 gradually decreases in size along the direction from the first connecting section 42 to the second connecting section 43, so that one end of the injection component 4 arranged in the exhaust channel 21 is in a flaring structure; the end of the injection part 4 arranged in the expansion channel 31 is of a necking structure, so that the liquid flowing into the injection channel 41 tends to flow from the expansion joint 3 to the exhaust manifold 2; and the air flow speed in the injection channel 41 is accelerated by the injection action of the exhaust manifold 2, so that the liquid entering the injection channel 41 rapidly flows through the injection channel 41 and the expansion channel 31, and further the liquid is prevented from accumulating in the injection channel 41 and/or the expansion channel 31, so that the liquid is accumulated in the exhaust channel 21, and the liquid accumulated in the exhaust channel 21 can be uniformly cleaned in the later stage.
Further, by setting the injection channel 41 to be in a structure that the size of the flow section of the injection channel 41 gradually decreases along the direction from the first connecting section 42 to the second connecting section 43, the flow speed of the air flow in the injection channel 41 is fully utilized, so that the mixed liquid in the air flow flowing out of the exhaust channel 21 flows back into the exhaust channel 21 along the inner wall surface when colliding to the inner wall surface of the injection channel 41, the liquid volume is prevented from being stored in the injection channel 41 and/or the expansion channel 31, the liquid is further accumulated in the exhaust channel 21, and the liquid stored in the exhaust channel 21 is uniformly cleaned in the later stage.
Specifically, the specific implementation structure of the injection component 4 in the embodiment of the present application is:
in order to facilitate the installation of the injection part 4, the outer wall surface of the injection part 4 is cylindrical; the outer circumference of the outer wall surface of the injection part 4 is smaller than the circumference of the inner wall surface of the exhaust channel 21, so that a first installation gap 5 exists between the outer wall of the injection part 4 and the inner wall of the exhaust channel 21, the outer wall of the injection part 4 is not contacted with the inner wall of the exhaust channel 21, and the exhaust manifold 2 is prevented from being damaged due to expansion and contraction caused by the rise of air temperature in the injection channel 41 in the working process; the outer circumference of the outer wall surface of the injection part 4 is smaller than the circumference of the inner wall surface of the expansion channel 31, so that a second installation gap 6 exists between the outer wall of the injection part 4 and the inner wall of the exhaust channel 21, the outer wall of the injection part 4 is not contacted with the inner wall of the expansion channel 31, and the expansion joint 3 is prevented from being damaged due to expansion caused by heat and contraction caused by temperature rise in the injection channel 41 in the working process; the inner wall surface of the gasket inner ring 11 is circular so as to be matched with the shape of the outer wall surface of the injection part 4; the outer circumference of the outer wall surface of the injection part 4 is matched with the circumference of the inner wall surface of the gasket inner ring 11, so that the inner wall of the gasket inner ring 11 is attached to the outer wall of the injection part 4, and the injection part 4 is fixed through the gasket part 1. Such setting is in the life of being convenient for installation injection part 4, extension gasket structure, reduces working cost.
In another embodiment, in order to reduce the waste of the material for producing the gasket structure, the perimeter of the outer wall surface of the ejector member 4 is gradually reduced along the direction from the first connecting section 42 to the second connecting section 43; the outer circumference of the outer wall surface of one side of the first connecting section 42, which is far away from the gasket connecting section, is smaller than the circumference of the inner wall surface of the exhaust channel 21, so that a first installation gap 5 exists between the outer wall of the injection part 4 and the inner wall of the exhaust channel 21, the outer wall of the injection part 4 is not contacted with the inner wall of the exhaust channel 21, and the exhaust manifold 2 is prevented from being damaged due to expansion and contraction caused by the rise of air temperature in the injection channel 41 in the working process; the outer circumference of the outer wall surface of the second connecting section 43, which is close to one side of the gasket connecting section, is smaller than the circumference of the inner wall surface of the expansion channel 31, so that a second installation gap 6 exists between the outer wall of the injection part 4 and the inner wall of the exhaust channel 21, the outer wall of the injection part 4 is not contacted with the inner wall of the expansion channel 31, and the expansion joint 3 is prevented from being damaged due to expansion caused by heat and contraction caused by temperature rise in the injection channel 41 in the working process; the shape and the outer circumference of the outer wall surface of the gasket connecting section are matched with the shape and the circumference of the inner wall surface of the gasket inner ring 11, so that the inner wall of the gasket inner ring 11 is attached to the outer wall of the gasket connecting section, and the injection part 4 is fixed through the gasket part 1. Such setting is in the extravagant of the material that reduces production pad structure, when reduction in production cost, prolongs the life of pad structure, reduces working cost.
Preferably, the inner wall of the gasket inner ring 11 is attached to the outer wall of the gasket connecting section, the inner wall of the gasket inner ring 11 is fixedly connected with a circle of the outer wall of the gasket connecting section, the connection strength between the gasket part 1 and the injection part 4 is enhanced, the gasket part 1 and the injection part 4 are prevented from being broken, and the service life of the gasket structure is prolonged.
Further, the spacer member 1 further includes a spacer outer ring 12 and a spacer plate member 13, and the spacer plate member 13 is formed between the spacer outer ring 12 and the spacer inner ring 11.
Wherein the gasket plate 13 is sandwiched between the exhaust manifold 2 and the expansion joint 3, at least part of the gasket plate 13 is arranged between the first installation gap 5 and the second installation gap 6, so that a first closed cavity is formed between the first installation gap 5 and the gasket plate 13, the air flow flowing through the first closed cavity forms turbulence at the inlet, and liquid and/or impurity gas is reduced to enter the first installation gap 5, so that liquid accumulation between the gasket plate 13 and the exhaust manifold 2 is avoided, and leakage of the liquid and/or impurity gas between the gasket structure and the exhaust manifold 2 is reduced; the second installation clearance 6 forms the second closed chamber with gasket plate 13 for the air current that flows through the second closed chamber forms the torrent in the entrance, reduces liquid and/or impurity gas and gets into second installation clearance 6, thereby avoids liquid to accumulate between gasket plate 13 and expansion joint 3, and then reduces liquid and/or impurity gas and reveal between gasket structure and the expansion joint 3.
Optionally, the gasket part 1 is made of metal; the injection part 4 is of a tubular structure made of metal; the gasket part 1 is connected with the injection part 4 through welding, so that the connection strength between the gasket part 1 and the injection part 4 is enhanced, the gasket part 1 and the injection part 4 are prevented from being broken, the corrosion of liquid and/or impurity liquid to the injection part 4 is prevented, and the service life of the gasket structure is prolonged.
The present utility model provides in a second aspect an exhaust pipe comprising an exhaust manifold 2 and an expansion joint 3, the exhaust pipe further comprising a gasket arrangement as described above, at least part of the gasket arrangement being arranged between the exhaust manifold 2 and the expansion joint 3.
In addition, in order to fix the gasket structure, the blast pipe still includes fixed part 7, and the one end of fixed part 7 is connected with expansion joint 3, and the other end of fixed part 7 is connected with the outer wall of the injection part 4 of gasket structure to with injection part 4 and expansion joint 3 fixed connection.
Similarly, one end of the fixing member 7 is connected to the exhaust manifold 2, and the other end of the fixing member 7 is connected to the outer wall of the injection member 4 of the gasket structure to fixedly connect the injection member 4 to the exhaust manifold 2.
The present utility model provides in a third aspect an engine comprising an exhaust manifold 2 and an expansion joint 3, the engine further comprising a gasket arrangement as described above, at least part of the gasket arrangement being arranged between the exhaust manifold 2 and the expansion joint 3.
In the embodiment of the present application, the number of the exhaust manifolds 2 is two, and the two exhaust manifolds 2 include a first exhaust manifold 22 and a second exhaust manifold 23, and the first exhaust manifold 22 and the second exhaust manifold 23 are respectively butted with both ends of the expansion joint 3.
Further, there are two gasket structures, at least part of one gasket structure being for being disposed between the first exhaust manifold 22 and the expansion joint 3, and at least part of the other gasket structure being for being disposed between the second exhaust manifold 23 and the expansion joint 3.
From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:
the utility model provides a gasket structure, an exhaust pipe and an engine, wherein the exhaust pipe and the engine comprise a gasket structure, an exhaust manifold 2 and an expansion joint 3, at least part of the gasket structure is arranged between the exhaust manifold 2 and the expansion joint 3, the exhaust manifold 2 is in butt joint with the expansion joint 3, and the gasket structure comprises a gasket part 1 and an injection part 4. Wherein the spacer member 1 has a spacer inner ring 11; the outer wall of the injection part 4 is fixedly connected with the gasket inner ring 11, the injection part 4 is provided with an injection channel 41, and two ends of the injection channel 41 are respectively communicated with the exhaust channel 21 of the exhaust manifold 2 and the expansion channel 31 of the expansion joint 3. The sealing performance between the exhaust manifold 2 and the expansion joint 3 is ensured by arranging the gasket component 1; the flow path of the liquid is changed by arranging the injection part 4, so that the liquid flows in the injection channel 41, thereby avoiding the liquid from accumulating between the gasket part 1 and the exhaust manifold 2 and/or between the gasket part 1 and the expansion joint 3, and accelerating the airflow flow speed in the injection channel 41 by utilizing the injection action of the exhaust manifold 2, so that the liquid entering the injection channel 41 rapidly flows through the injection channel 41 and the expansion channel 31, thereby solving the problem that lubricating oil in the prior art accumulates on the exhaust pipe gasket and/or the exhaust manifold, and further avoiding the problem that lubricating oil leaks when the engine runs at idle speed for a long time.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A gasket arrangement, at least part of which is intended to be arranged between an exhaust manifold (2) and an expansion joint (3), the exhaust manifold (2) being in abutment with the expansion joint (3), characterized in that the gasket arrangement comprises:
a spacer member (1) having a spacer inner ring (11);
the outer wall of the injection part (4) is fixedly connected with the gasket inner ring (11); the injection part (4) is provided with an injection channel (41), two ends of the injection channel (41) are respectively communicated with an exhaust channel (21) of the exhaust manifold (2) and an expansion channel (31) of the expansion joint (3), and a flow path of liquid is changed through the injection part (4) so that the liquid flows in the injection channel (41).
2. The gasket construction of claim 1 wherein,
the injection part (4) comprises a first connecting section (42), a second connecting section (43) and a gasket connecting section which are sequentially connected along the extending direction of the injection part; the first connecting section (42) is arranged in the exhaust passage (21) and is communicated with the exhaust passage (21); the second connecting section (43) is arranged in the expansion channel (31) and is communicated with the expansion channel (31); the outer wall surface of the gasket connecting section is fixedly connected with the gasket inner ring (11);
wherein the flow cross section of the injection channel (41) is gradually reduced in size along the direction from the first connecting section (42) to the second connecting section (43).
3. Gasket construction according to claim 2, characterized in that the outer wall of the ejector part (4) is cylindrical;
the outer circumference of the outer wall surface of the injection part (4) is smaller than the circumference of the inner wall surface of the exhaust channel (21), so that a first installation gap (5) exists between the outer wall of the injection part (4) and the inner wall of the exhaust channel (21);
the outer circumference of the outer wall surface of the injection part (4) is smaller than the circumference of the inner wall surface of the expansion channel (31), so that a second installation gap (6) exists between the outer wall of the injection part (4) and the inner wall of the exhaust channel (21);
the inner wall surface of the gasket inner ring (11) is circular so as to be matched with the shape of the outer wall surface of the injection part (4); the outer perimeter of the outer wall surface of the injection part (4) is matched with the perimeter of the inner wall surface of the gasket inner ring (11), so that the inner wall of the gasket inner ring (11) is attached to the outer wall of the injection part (4).
4. Gasket construction according to claim 2, characterized in that the perimeter of the outer wall surface of the ejector part (4) decreases gradually in the direction of the first connecting section (42) to the second connecting section (43);
the outer circumference of the outer wall surface of the first connecting section (42) at the side far away from the gasket connecting section is smaller than the circumference of the inner wall surface of the exhaust channel (21), so that a first installation gap (5) exists between the outer wall of the injection part (4) and the inner wall of the exhaust channel (21);
the outer circumference of the outer wall surface of the second connecting section (43) close to one side of the gasket connecting section is smaller than the circumference of the inner wall surface of the expansion channel (31), so that a second installation gap (6) exists between the outer wall of the injection part (4) and the inner wall of the exhaust channel (21);
the shape and the outer circumference of the outer wall surface of the gasket connecting section are matched with the shape and the circumference of the inner wall surface of the gasket inner ring (11), so that the inner wall of the gasket inner ring (11) is attached to the outer wall of the gasket connecting section.
5. The gasket construction of any of claims 3 or 4 wherein,
the gasket part (1) further comprises a gasket outer ring (12) and a gasket plate (13), wherein the gasket plate (13) is formed between the gasket outer ring (12) and the gasket inner ring (11);
the gasket plate (13) is clamped between the exhaust manifold (2) and the expansion joint (3), at least part of the gasket plate (13) is arranged between the first installation gap (5) and the second installation gap (6), a first closed cavity is formed between the first installation gap (5) and the gasket plate (13), and a second closed cavity is formed between the second installation gap (6) and the gasket plate (13).
6. The gasket construction of claim 1 wherein,
the gasket component (1) is made of metal;
the injection part (4) is of a tubular structure made of metal;
the gasket part (1) is connected with the injection part (4) through welding.
7. An exhaust pipe comprising an exhaust manifold (2) and an expansion joint (3), characterized in that the exhaust pipe further comprises:
the gasket construction of any one of claims 1 to 6, at least part of which is intended to be arranged between the exhaust manifold (2) and the expansion joint (3).
8. The exhaust pipe according to claim 7, characterized in that the exhaust pipe further comprises a fixing part (7), wherein:
one end of the fixing part (7) is connected with the expansion joint (3), and the other end of the fixing part (7) is connected with the outer wall of the injection part (4) of the gasket structure so as to fixedly connect the injection part (4) with the expansion joint (3); and/or
One end of the fixing part (7) is connected with the exhaust manifold (2), and the other end of the fixing part (7) is connected with the outer wall of the injection part (4) of the gasket structure so as to fixedly connect the injection part (4) with the exhaust manifold (2).
9. An engine comprising an exhaust manifold (2) and an expansion joint (3), characterized in that the engine further comprises:
the gasket construction of any one of claims 1 to 6, at least part of which is intended to be arranged between the exhaust manifold (2) and the expansion joint (3).
10. The engine according to claim 9, characterized in that the number of exhaust manifolds (2) is two, the two exhaust manifolds (2) comprising a first exhaust manifold (22) and a second exhaust manifold (23), the first exhaust manifold (22) and the second exhaust manifold (23) respectively interfacing with both ends of the expansion joint (3);
the number of the gasket structures is two, at least part of one gasket structure is used for being arranged between the first exhaust manifold (22) and the expansion joint (3), and at least part of the other gasket structure is used for being arranged between the second exhaust manifold (23) and the expansion joint (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322395132.6U CN220791346U (en) | 2023-09-04 | 2023-09-04 | Gasket structure, exhaust pipe and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322395132.6U CN220791346U (en) | 2023-09-04 | 2023-09-04 | Gasket structure, exhaust pipe and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791346U true CN220791346U (en) | 2024-04-16 |
Family
ID=90653971
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| Application Number | Title | Priority Date | Filing Date |
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| CN202322395132.6U Active CN220791346U (en) | 2023-09-04 | 2023-09-04 | Gasket structure, exhaust pipe and engine |
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| CN (1) | CN220791346U (en) |
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