CN217501781U - Exhaust assembly and engine - Google Patents
Exhaust assembly and engine Download PDFInfo
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- CN217501781U CN217501781U CN202221842744.4U CN202221842744U CN217501781U CN 217501781 U CN217501781 U CN 217501781U CN 202221842744 U CN202221842744 U CN 202221842744U CN 217501781 U CN217501781 U CN 217501781U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The utility model provides an exhaust subassembly and engine, exhaust subassembly, include: a first exhaust manifold, a second exhaust manifold, and a first sealing band; the first exhaust manifold comprises a first inserting part and a sealing part, the sealing part is arranged along the circumferential direction of the outer wall of the first inserting part, and a first gap is formed between the sealing part and the outer wall of the first exhaust manifold; the second exhaust manifold comprises a second inserting part, and the second inserting part is sleeved outside the first inserting part and can be inserted into the first gap; the first seal band is provided between the second exhaust manifold and the seal portion. Through set up first clearance between sealing and first exhaust manifold outer wall for first sealing band can further carry out radial seal on the outer wall of second exhaust manifold, has increased sealing band length, promotes sealed effect.
Description
The present application claims priority from a chinese patent application filed on 29/06/29/2022 under the name "exhaust assembly and engine" by the chinese intellectual property office, application number "202221653561.8", the entire contents of which are incorporated herein by reference.
Technical Field
The utility model relates to an engine technical field, concretely relates to exhaust subassembly and engine.
Background
At present, in the related art, when an engine operates, high-temperature and high-pressure gas and liquid are discharged, and the high-temperature and high-pressure gas and liquid circulate between a first exhaust manifold and a second exhaust manifold, and are sealed by arranging a sealing strip between the outer wall of the first exhaust manifold and the inner wall of the second exhaust manifold, so that the sealing performance is poor, and leakage of the high-temperature and high-pressure gas and liquid is easily caused.
SUMMERY OF THE UTILITY MODEL
The present invention aims at least solving one of the technical problems existing in the prior art or the related art.
To this end, a first aspect of the present invention provides an exhaust assembly.
A second aspect of the present invention provides an engine.
In view of this, the utility model discloses an aspect provides an exhaust assembly, includes: a first exhaust manifold, a second exhaust manifold, and a first sealing band; the first exhaust manifold comprises a first inserting part and a sealing part, the sealing part is arranged along the circumferential direction of the outer wall of the first inserting part, and a first gap is formed between the sealing part and the outer wall of the first exhaust manifold; the second exhaust manifold comprises a second inserting part, and the second inserting part is sleeved outside the first inserting part and can be inserted into the first gap; the first seal band is provided between the second exhaust manifold and the seal portion.
In this solution, the exhaust assembly comprises: a first exhaust manifold, a second exhaust manifold, and a first sealing band. The first exhaust manifold comprises a first inserting portion and a sealing portion, and the sealing portion is arranged along the circumferential direction of the outer wall of the first inserting portion to achieve installation of the sealing portion. The second exhaust manifold comprises a second inserting portion, the second inserting portion is sleeved outside the first inserting portion and can be inserted into the first gap, and the first gap is formed between the sealing portion and the outer wall of the first exhaust manifold, so that the first inserting portion and the second inserting portion can be connected together. The first sealing strip is arranged between the second exhaust manifold and the sealing portion, so that the first sealing strip can seal between the second exhaust manifold and the sealing portion, flowing waste gas and liquid between the first exhaust manifold and the second exhaust manifold are prevented from leaking to the outside from a gap between the second exhaust manifold and the sealing portion, and the first sealing strip can further radially seal on the outer wall of the second exhaust manifold by arranging the first gap between the sealing portion and the outer wall of the first exhaust manifold, so that the length of the sealing strip is increased, and the sealing effect is improved.
Specifically, the number of the first exhaust manifold and the second exhaust manifold is plural.
Additionally, the utility model provides an exhaust subassembly among the above-mentioned technical scheme can also have following additional technical characterstic:
the utility model discloses an among the technical scheme, exhaust assembly still includes the second sealing strip, and the outer wall of first grafting portion is located to second sealing strip cover, is located between the outer wall of first poor joining in marriage portion and second exhaust manifold's the inner wall.
In this technical scheme, exhaust subassembly still includes the second sealing strip, and the outer wall of first grafting portion is located to the second sealing strip cover to the realization is to the installation of second sealing strip. The second sealing strip is located between the outer wall of the first inserting portion and the inner wall of the second exhaust manifold, so that the second sealing strip can seal a gap between the outer wall of the first inserting portion and the inner wall of the second exhaust manifold, exhaust gas and liquid flowing between the first exhaust manifold and the second exhaust manifold are prevented from flowing into the gap between the outer wall of the first exhaust manifold and the inner wall of the second exhaust manifold, and the sealing effect is improved.
Through setting up first sealing band and second sealing band simultaneously to can all have radial sealing band at the inner wall and the outer wall of second grafting portion, make the second sealing band can enter into the gap between the outer wall of first exhaust manifold and the inner wall of second exhaust manifold to the interior exhaust gas and the liquid of circulating of first exhaust manifold and second exhaust manifold, even partial exhaust gas and liquid pass through the gap, first sealing band can further carry out radial seal on the outer wall of second exhaust manifold, with this increased sealing band length, further promote sealed effect.
Specifically, a third gap is formed between the first plugging part and the sealing part, and a fourth gap is formed between the outer wall of the first plugging part and the inner wall of the second plugging part. The inner wall and the outer wall of the second inserting part are machined, radial sealing gaps on two sides are consistent, the length of a sealing strip is increased, and the sealing effect is improved.
In one technical solution of the present invention, the exhaust assembly further includes a second sealing member, and the second sealing member is located in the first gap; the first side of the second sealing element abuts against the second inserting portion, and the second side of the second sealing element abuts against the first exhaust manifold.
In this aspect, the exhaust assembly further includes a second seal positioned within the first gap to facilitate installation of the second seal. The first side of second sealing member supports and leans on in second grafting portion, and the second side supports and leans on in first exhaust manifold to make second grafting portion insert back in the first clearance, the second sealing member can carry out axial interference to first exhaust manifold and second exhaust manifold and seal, thereby can avoid waste gas and liquid to flow from first clearance, further promote sealing capacity.
Specifically, the second sealing element is located in the first gap, and after the second insertion part is inserted into the first gap, the first side of the second sealing element abuts against the second insertion part, so that the second sealing element is in a compressed state.
Specifically, the second seal is a seal ring, and the cross section of the seal ring in the axial direction is in a C shape, a U shape, a W shape or the like.
In one technical solution of the present invention, the outer wall of the second exhaust manifold is provided with a first groove, the first groove is circumferentially arranged along the outer wall of the second exhaust manifold, and an opening of the first groove faces the sealing portion; the exhaust assembly also includes a first seal member positioned within the first groove.
In this technical scheme, set up in first recess on the outer wall of second exhaust manifold, first recess sets up along the outer wall circumference of second exhaust manifold to form annular first recess, the opening of first recess is towards the sealing. First sealing member is installed in first recess for in the second grafting portion inserts first clearance after, first sealing member can seal the gap between second exhaust manifold and the sealing, thereby can further promote sealed effect.
Specifically, first sealing member is sealed the rope, because sealed the rope have scalable, elasticity, high temperature resistance's characteristics, easy assembly on the production, it is effectual to seal liquid gas, consequently, can locate the liquid and the gas that flow to second sealing member to can avoid can not seal the problem that leads to waste gas and liquid to leak effectively when first sealing member is the sealing ring.
Particularly, the sealing rope has high expansion amount and good sealing effect on high-temperature and high-pressure gas and liquid discharged by an engine.
Specifically, the sealing rope is a composite sealing rope and is an elastic high-temperature-resistant expansion body made of various materials.
Specifically, the outer layer of the sealing rope is a braided layer, and the inner layer is an expansion core. The sealing principle is as follows: the sealing rope is assembled in a sealing ring groove connected with the exhaust pipe, and after the engine works, the sealing rope is heated by utilizing the exhaust temperature to expand to fill the sealing ring groove, so that the gap is filled, and the sealing effect is achieved.
The utility model discloses an among the technical scheme, the quantity of first recess is a plurality of, and a plurality of first recesses set up along second exhaust manifold's outer wall interval.
In this technical scheme, the quantity of first recess is a plurality of, and a plurality of first recesses set up along second exhaust manifold's outer wall interval, and the quantity of first sealing member is also a plurality of to all be provided with a first sealing member in making every first recess, thereby make a plurality of first sealing members all can seal the gap between second exhaust manifold and the sealing, promote sealed effect, the reinforcing is to the sealing capacity in the gap between second exhaust manifold and the sealing.
Specifically, the number of first recesses is two, and two first recesses set up along the outer wall interval of second exhaust manifold, and the number of first sealing member is two, all is provided with a first sealing member in every first recess.
Specifically, the number of the first grooves is four, the four first grooves are arranged at intervals along the outer wall of the second exhaust manifold, the number of the first sealing elements is four, and one first sealing element is arranged in each first groove.
Specifically, the sealing mode that the leakage path of high-temperature and high-pressure gas or liquid medium discharged by the engine passes is as follows: the gap where the second sealing strip is located realizes radial sealing, the second sealing strip realizes axial interference sealing, the first sealing strip realizes radial sealing, and the first sealing strip realizes axial sealing, so that the sealing effect is improved in a multi-sealing mode.
In one embodiment of the present invention, the second exhaust manifold further comprises a first pipe body connected to the second insertion portion, and the diameter of the second insertion portion is larger than that of the first pipe body; after the second inserting part is inserted into the first gap, a second gap is formed between the first inserting part and the first pipe body.
In this technical scheme, second exhaust manifold still includes first body, first body is connected with second grafting portion, the diameter of second grafting portion is greater than the diameter of first body, so that have the second clearance between first grafting portion and the first body, because the existence in second clearance, make and avoid being heated can not extrude each other when being heated to both sides expansion deformation at first exhaust manifold and second exhaust manifold, prevent that first exhaust manifold and second exhaust manifold from splitting after the extrusion, guarantee the stability of exhaust subassembly during operation.
The utility model discloses an among the technical scheme, second clearance length more than or equal to 2mm, less than or equal to 8 mm.
In the technical scheme, the length of the second gap is more than or equal to 2mm and less than or equal to 8mm, so that when the second gap is in the range, the first exhaust manifold and the second exhaust manifold are prevented from being mutually extruded in a heated expansion state; the first exhaust manifold and the second exhaust manifold are prevented from being broken after extrusion, and the stability of the exhaust assembly during operation is guaranteed.
Specifically, the second gap length is 5mm, prevents that first exhaust manifold and second exhaust manifold from breaking after the extrusion, guarantees the stability of exhaust assembly during operation.
The utility model discloses an among the technical scheme, the axial length more than or equal to 10mm of sealing, less than or equal to 15 mm.
In this technical scheme, the axial length more than or equal to 10mm of sealing, less than or equal to 15mm, and then can further increase the axial length of sealing, promote the sealing to radial seal length between sealing and the first exhaust manifold outer wall, promote sealed effect.
Specifically, the length of the first sealing band is greater than or equal to 10mm and less than or equal to 15mm, so that the length of the first sealing band is equal to the axial length of the sealing part, and the radial sealing length between the sealing part pair sealing part and the outer wall of the first exhaust manifold is improved.
Specifically, the axial length of the seal portion is greater than 10 mm.
Specifically, the axial length of the seal portion is greater than 12 mm.
Specifically, the axial length of the seal portion is more than 15 mm.
The utility model discloses an among the technical scheme, sealing and first exhaust manifold formula structure as an organic whole.
In this technical scheme, sealing and first exhaust manifold formula structure as an organic whole, and then need not to install sealing and first exhaust manifold once more, have reduced the installation process and the installation part of sealing and first exhaust manifold to sealing and first exhaust manifold integrated into one piece can increase structural strength, promote the stability of structure, avoid the structural instability to take place to damage.
The utility model discloses the second aspect provides an engine, exhaust subassembly including among the above-mentioned arbitrary technical scheme, consequently, this engine possesses all beneficial effects of exhaust subassembly.
In this solution, the engine includes an exhaust assembly including a first exhaust manifold, a second exhaust manifold, and a first sealing band. First exhaust manifold includes first grafting portion and sealing, and the sealing sets up along the circumference of first grafting portion outer wall to the realization is to the installation of sealing. The second exhaust manifold comprises a second inserting portion, the second inserting portion is sleeved outside the first inserting portion and can be inserted into the first gap, the first gap is arranged between the sealing portion and the outer wall of the first exhaust manifold, and then the first inserting portion and the second inserting portion can be connected together, so that waste gas and liquid can flow between the first exhaust manifold and the second exhaust manifold, and the waste gas and the liquid are discharged. The first sealing strip is arranged between the second exhaust manifold and the sealing portion, so that the first sealing strip can seal between the second exhaust manifold and the sealing portion, flowing exhaust gas and liquid between the first exhaust manifold and the second exhaust manifold are prevented from leaking to the outside from a gap between the second exhaust manifold and the sealing portion, and the first sealing strip can further radially seal on the outer wall of the second exhaust manifold by arranging the first gap between the sealing portion and the outer wall of the first exhaust manifold, so that the length of the sealing strip is increased, and the sealing effect is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
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 a schematic structural view of an exhaust assembly according to an embodiment of the present invention.
Wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is as follows:
100 exhaust assembly, 110 first exhaust manifold, 112 first plug part, 114 seal part, 116 first gap, 120 second exhaust manifold, 122 second plug part, 124 first groove, 126 first tube, 130 first seal band, 140 second seal band, 150 first seal, 160 second seal, 170 second gap.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. 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 assembly 100 and an engine according to some embodiments of the present invention are described below with reference to fig. 1.
As shown in fig. 1, a first aspect of the present embodiment provides an exhaust assembly 100, including: a first exhaust manifold 110, a second exhaust manifold 120, and a first sealing band 130; the first exhaust manifold 110 comprises a first plug-in part 112 and a sealing part 114, the sealing part 114 is arranged along the circumferential direction of the outer wall of the first plug-in part 112, and a first gap 116 is formed between the sealing part 114 and the outer wall of the first exhaust manifold 110; the second exhaust manifold 120 includes a second inserting portion 122, the second inserting portion 122 is sleeved outside the first inserting portion 112 and can be inserted into the first gap 116; the first seal band 130 is provided between the second exhaust manifold 120 and the seal portion 114.
In this embodiment, the exhaust assembly 100 includes: a first exhaust manifold 110, a second exhaust manifold 120, and a first sealing band 130. The first exhaust manifold 110 includes a first socket part 112 and a sealing part 114, and the sealing part 114 is disposed along a circumferential direction of an outer wall of the first socket part 112 to implement installation of the sealing part 114. The second exhaust manifold 120 includes a second insertion portion 122, the second insertion portion 122 is sleeved outside the first insertion portion 112 and can be inserted into the first gap 116, and the first gap 116 is disposed between the sealing portion 114 and the outer wall of the first exhaust manifold 110, so that the first insertion portion 112 and the second insertion portion 122 can be connected together. The first sealing band 130 is disposed between the second exhaust manifold 120 and the sealing portion 114, such that the first sealing band 130 can seal between the second exhaust manifold 120 and the sealing portion 114, and prevent exhaust gas and liquid flowing between the first exhaust manifold 110 and the second exhaust manifold 120 from leaking into the outside from a gap between the second exhaust manifold 120 and the sealing portion 114, and by providing the first gap 116 between the sealing portion 114 and an outer wall of the first exhaust manifold 110, the first sealing band 130 can further radially seal on the outer wall of the second exhaust manifold 120, such that the length of the sealing band is increased, and the sealing effect is improved.
Specifically, the number of the first exhaust manifold 110 and the second exhaust manifold 120 is plural.
The present embodiment provides an exhaust assembly 100, and in addition to the technical features of the above-described embodiments, further includes the following technical features.
As shown in fig. 1, the exhaust assembly 100 further includes a second sealing strip 140, and the second sealing strip 140 is sleeved on the outer wall of the first insertion portion 112 and located between the outer wall of the first insertion portion 112 and the inner wall of the second exhaust manifold 120.
In this embodiment, the exhaust assembly 100 further includes a second sealing strip 140, and the second sealing strip 140 is sleeved on the outer wall of the first insertion connection part 112 to implement the installation of the second sealing strip 140. The second sealing band 140 is located between the outer wall of the first insertion part 112 and the inner wall of the second exhaust manifold 120, so that the second sealing band 140 can seal the gap between the outer wall of the first insertion part 112 and the inner wall of the second exhaust manifold 120, prevent the exhaust gas and liquid flowing between the first exhaust manifold 110 and the second exhaust manifold 120 from flowing into the gap between the outer wall of the first exhaust manifold 110 and the inner wall of the second exhaust manifold 120, and improve the sealing effect.
By arranging the first sealing strip 130 and the second sealing strip 140 at the same time, radial sealing strips can be arranged on both the inner wall and the outer wall of the second insertion part 122, so that the second sealing strip 140 can enable exhaust gas and liquid circulating in the first exhaust manifold 110 and the second exhaust manifold 120 to enter a gap between the outer wall of the first exhaust manifold 110 and the inner wall of the second exhaust manifold 120, even if part of the exhaust gas and liquid passes through the gap, the first sealing strip 130 can further perform radial sealing on the outer wall of the second exhaust manifold 120, thereby increasing the length of the sealing strips and further improving the sealing effect.
Specifically, a third gap is formed between the first insertion-connection part 112 and the sealing part 114, and a fourth gap is formed between an outer wall of the first insertion-connection part 112 and an inner wall of the second insertion-connection part 122. The inner wall and the outer wall of the second inserting part 122 are machined, radial sealing gaps on two sides are consistent, the length of a sealing strip is increased, and the sealing effect is improved.
The present embodiment provides an exhaust assembly 100, and in addition to the technical features of the above-described embodiments, further includes the following technical features.
As shown in fig. 1, the exhaust assembly 100 further includes a second seal 160, the second seal 160 being located within the first gap 116; a first side of the second seal 160 abuts the second socket 122 and a second side of the second seal 160 abuts the first exhaust manifold 110.
In this embodiment, the exhaust assembly 100 further includes a second seal 160, the second seal 160 being positioned within the first gap 116 to enable installation of the second seal 160. The first side of the second sealing element 160 abuts against the second insertion portion 122, and the second side abuts against the first exhaust manifold 110, so that after the second insertion portion 122 is inserted into the first gap 116, the second sealing element 160 can perform axial interference sealing on the first exhaust manifold 110 and the second exhaust manifold 120, thereby preventing exhaust gas and liquid from flowing from the first gap 116, and further improving the sealing capability.
Specifically, the second sealing member 160 is located in the first gap 116, and after the second insertion portion 122 is inserted into the first gap 116, a first side of the second sealing member 160 abuts against the second insertion portion 122, so that the second sealing member 160 is in a compressed state.
Specifically, the second seal 160 is a seal ring having a cross-sectional shape in the axial direction of a C-shape, a U-shape, a W-shape, or the like.
The present embodiment provides an exhaust assembly 100, and in addition to the technical features of the above-described embodiments, further includes the following technical features.
As shown in fig. 1, a first groove 124 is provided on an outer wall of the second exhaust manifold 120, the first groove 124 is circumferentially provided along the outer wall of the second exhaust manifold 120, and an opening of the first groove 124 faces the sealing portion 114; the exhaust assembly 100 also includes a first seal 150, the first seal 150 being located within the first groove 124.
In this embodiment, the first groove 124 is provided on the outer wall of the second exhaust manifold 120, and the first groove 124 is circumferentially provided along the outer wall of the second exhaust manifold 120, so that an annular first groove 124 is formed, and the opening of the first groove 124 faces the seal portion 114. The first sealing member 150 is installed in the first groove 124, so that after the second insertion part 122 is inserted into the first gap 116, the first sealing member 150 can seal the gap between the second exhaust manifold 120 and the sealing part 114, thereby further improving the sealing effect.
Specifically, first sealing member 150 is sealed rope, because sealed rope has scalable, elasticity, high temperature resistance's characteristics, easy assembly in the production, and it is effectual to seal liquid gas, consequently, can seal the liquid and the gas that second sealing member 160 department flowed out to can avoid sealing effectively when first sealing member 150 is the sealing ring and lead to the problem of waste gas and liquid leakage.
Particularly, the sealing rope has high expansion amount and good sealing effect on high-temperature and high-pressure gas and liquid discharged by an engine.
Specifically, the sealing rope is a composite sealing rope and is an elastic high-temperature-resistant expansion body made of various materials.
Specifically, the outer layer of the sealing rope is a braided layer, and the inner layer is an expansion core. The sealing principle is as follows: the sealing rope is assembled in a sealing ring groove connected with the exhaust pipe, and after the engine works, the sealing rope is heated by utilizing the exhaust temperature to expand to fill the sealing ring groove, so that the gap is filled, and the sealing effect is achieved.
The present embodiment provides an exhaust assembly 100, and in addition to the technical features of the above-described embodiments, further includes the following technical features.
The number of the first grooves 124 is plural, and the plural first grooves 124 are provided at intervals along the outer wall of the second exhaust manifold 120.
In this embodiment, the number of the first grooves 124 is plural, the plural first grooves 124 are spaced along the outer wall of the second exhaust manifold 120, and the number of the first sealing members 150 is also plural, so that one first sealing member 150 is disposed in each first groove 124, and thus the plural first sealing members 150 can seal the gap between the second exhaust manifold 120 and the sealing portion 114, thereby improving the sealing effect and enhancing the sealing capability of the gap between the second exhaust manifold 120 and the sealing portion 114.
Specifically, the number of the first grooves 124 is two, two first grooves 124 are spaced apart along the outer wall of the second exhaust manifold 120, the number of the first seals 150 is two, and one first seal 150 is disposed in each first groove 124.
Specifically, the number of the first grooves 124 is four, four first grooves 124 are spaced along the outer wall of the second exhaust manifold 120, the number of the first sealing members 150 is four, and one first sealing member 150 is disposed in each first groove 124.
Specifically, the sealing mode that the leakage path of high-temperature and high-pressure gas or liquid medium discharged by the engine passes is as follows: the gap where the second sealing band 140 is located realizes radial sealing-the second seal 160 realizes axial interference sealing-the first sealing band 130 realizes radial sealing-the first seal 150 realizes axial sealing, so that the sealing effect is improved through a multi-sealing mode.
The present embodiment provides an exhaust assembly 100, and in addition to the technical features of the above-described embodiments, further includes the following technical features.
As shown in fig. 1, the second exhaust manifold 120 further includes a first pipe 126, the first pipe 126 is connected to the second plug 122, and the diameter of the second plug 122 is larger than that of the first pipe 126; after the second plug portion 122 is inserted into the first gap 116, a second gap 170 is formed between the first plug portion 112 and the first tube 126.
In this embodiment, the second exhaust manifold 120 further includes a first pipe 126, the first pipe 126 is connected to the second plug portion 122, a diameter of the second plug portion 122 is larger than a diameter of the first pipe 126, and a diameter of the second plug portion 122 is larger than a diameter of the first pipe 126, so that a second gap 170 is formed between the first plug portion 112 and the first pipe 126, and due to the existence of the second gap 170, the first exhaust manifold 110 and the second exhaust manifold 120 cannot be pressed against each other when the first exhaust manifold 110 and the second exhaust manifold 120 avoid being heated to expand and deform to both sides, so that the first exhaust manifold 110 and the second exhaust manifold 120 are prevented from being broken after being pressed, and stability of the exhaust assembly 100 during operation is ensured.
The present embodiment provides an exhaust assembly 100, and in addition to the technical features of the above-described embodiments, further includes the following technical features.
The length of the second gap 170 is not less than 2mm and not more than 8 mm.
In this embodiment, the length of the second gap 170 is greater than or equal to 2mm and less than or equal to 8mm, so that when the second position is in this range, the first exhaust manifold 110 and the second exhaust manifold 120 are not pressed against each other in the heat expansion state; the first exhaust manifold 110 and the second exhaust manifold 120 are prevented from being broken after the compression, and stability of the exhaust assembly 100 in operation is ensured.
Specifically, the second gap 170 has a length of 5mm, and prevents the first exhaust manifold 110 and the second exhaust manifold 120 from being broken after being pressed, thereby ensuring stability of the exhaust assembly 100 during operation.
The present embodiment provides an exhaust assembly 100, and in addition to the technical features of the above-described embodiments, further includes the following technical features.
The axial length of the seal portion 114 is 10mm or more and 15mm or less.
In this embodiment, the axial length of the sealing portion 114 is greater than or equal to 10mm and less than or equal to 15mm, so as to further increase the axial length of the sealing portion 114, and promote the sealing effect of the sealing portion 114 on the radial sealing length between the sealing portion 114 and the outer wall of the first exhaust manifold 110.
Specifically, the length of the first sealing band 130 is equal to or greater than 10mm and equal to or less than 15mm, so that the length of the first sealing band 130 is equal to the axial length of the sealing portion 114, and the sealing portion 114 is lifted up against the radial sealing length between the sealing portion 114 and the outer wall of the first exhaust manifold 110.
Specifically, the axial length of the seal portion 114 is greater than 10 mm.
Specifically, the axial length of the seal portion 114 is greater than 12 mm.
Specifically, the axial length of the seal portion 114 is greater than 15 mm.
The present embodiment provides an exhaust assembly 100, and in addition to the technical features of the above-described embodiments, further includes the following technical features.
As shown in fig. 1, the sealing portion 114 is of an integral structure with the first exhaust manifold 110.
In this embodiment, the sealing portion 114 and the first exhaust manifold 110 are of an integral structure, and further the sealing portion 114 and the first exhaust manifold 110 do not need to be installed again, so that the installation processes and installation parts of the sealing portion 114 and the first exhaust manifold 110 are reduced, and the sealing portion 114 and the first exhaust manifold 110 are integrally formed to increase the structural strength, improve the structural stability, and avoid the structural instability that the damage occurs.
The present embodiment provides an engine comprising the exhaust assembly 100 of any of the above embodiments, and therefore, the engine has all the benefits of the exhaust assembly 100.
In this embodiment, the engine includes an exhaust assembly 100, the exhaust assembly 100 including a first exhaust manifold 110, a second exhaust manifold 120, and a first sealing band 130. The first exhaust manifold 110 includes a first socket part 112 and a sealing part 114, and the sealing part 114 is disposed along a circumferential direction of an outer wall of the first socket part 112 to implement installation of the sealing part 114. The second exhaust manifold 120 includes a second insertion portion 122, the second insertion portion 122 is sleeved outside the first insertion portion 112 and can be inserted into the first gap 116, and the first gap 116 is disposed between the sealing portion 114 and the outer wall of the first exhaust manifold 110, so that the first insertion portion 112 and the second insertion portion 122 can be connected together, so that the exhaust gas and the liquid can flow between the first exhaust manifold 110 and the second exhaust manifold 120, and the exhaust gas and the liquid can be discharged. The first sealing strip 130 is disposed between the second exhaust manifold 120 and the sealing portion 114, such that the first sealing strip 130 can seal between the second exhaust manifold 120 and the sealing portion 114, and prevent exhaust gas and liquid flowing between the first exhaust manifold 110 and the second exhaust manifold 120 from leaking into the outside from a gap between the second exhaust manifold 120 and the sealing portion 114, and by providing the first gap 116 between the sealing portion 114 and the outer wall of the first exhaust manifold 110, the first sealing strip 130 can further radially seal on the outer wall of the second exhaust manifold 120, such that the sealing strip length is increased, and the sealing effect is improved.
In the claims, the specification and the drawings attached to the specification, the term "plurality" means two or more, unless there is an additional definite limitation, the terms "upper", "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings only for the purpose of describing the present invention more conveniently and simplifying the description process, but not for the purpose of indicating or implying that the referred device or element must have the described specific orientation, be constructed and operated in the specific orientation, and thus the description should not be construed as limiting the present invention; the terms "connect," "install," "fix," and the like are to be understood broadly, for example, "connect" may be a fixed connection between a plurality of objects, a detachable connection between a plurality of objects, or an integral connection; the multiple objects may be directly connected to each other or indirectly connected to each other through an intermediate. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art from the above data.
In the claims, the specification and drawings of the specification, the description of the term "one embodiment," "some embodiments," "specific embodiments," and the like, 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 invention. In the claims, the description and the drawings of the present application, schematic representations of the above terms 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 assembly, comprising:
the first exhaust manifold comprises a first inserting part and a sealing part, the sealing part is arranged along the circumferential direction of the outer wall of the first inserting part, and a first gap is formed between the sealing part and the outer wall of the first exhaust manifold;
the second exhaust manifold comprises a second inserting part, and the second inserting part is sleeved outside the first inserting part and can be inserted into the first gap;
a first sealing band disposed between the second exhaust manifold and the sealing portion.
2. The exhaust assembly of claim 1, further comprising:
and the second sealing strip is sleeved on the outer wall of the first inserting part and positioned between the outer wall of the first inserting part and the inner wall of the second exhaust manifold.
3. The exhaust assembly of claim 1, further comprising:
a second seal located within the first gap;
the first side of the second sealing element abuts against the second inserting portion, and the second side of the second sealing element abuts against the first exhaust manifold.
4. The exhaust assembly according to claim 1, wherein a first groove is provided on an outer wall of the second exhaust manifold, the first groove being circumferentially provided along the outer wall of the second exhaust manifold, an opening of the first groove facing the seal portion;
the exhaust assembly also includes a first seal positioned within the first groove.
5. The exhaust assembly according to claim 4 wherein said first recess is plural in number, and a plurality of said first recesses are spaced along an outer wall of said second exhaust manifold.
6. The exhaust assembly of claim 1, wherein the second exhaust manifold further comprises:
the first pipe body is connected with the second insertion part, and the diameter of the second insertion part is larger than that of the first pipe body;
after the second inserting part is inserted into the first gap, a second gap is formed between the first inserting part and the first pipe body.
7. The exhaust assembly according to claim 6, wherein the second gap length is greater than or equal to 2mm and less than or equal to 8 mm.
8. The exhaust assembly according to any one of claims 1 to 7, wherein an axial length of the seal portion is 10mm or more and 15mm or less.
9. The exhaust assembly according to any one of claims 1 to 7 wherein the seal portion is of unitary construction with the first exhaust manifold.
10. An engine comprising an exhaust assembly according to any one of claims 1 to 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221653561 | 2022-06-29 | ||
| CN2022216535618 | 2022-06-29 |
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| Publication Number | Publication Date |
|---|---|
| CN217501781U true CN217501781U (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221842744.4U Active CN217501781U (en) | 2022-06-29 | 2022-07-18 | Exhaust assembly and engine |
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| Country | Link |
|---|---|
| CN (1) | CN217501781U (en) |
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- 2022-07-18 CN CN202221842744.4U patent/CN217501781U/en active Active
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