CN104005880A - Seal device and segmented exhaust pipe with same - Google Patents
Seal device and segmented exhaust pipe with same Download PDFInfo
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- CN104005880A CN104005880A CN201410213441.XA CN201410213441A CN104005880A CN 104005880 A CN104005880 A CN 104005880A CN 201410213441 A CN201410213441 A CN 201410213441A CN 104005880 A CN104005880 A CN 104005880A
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Abstract
The invention discloses a seal device which is used for sealing the connector position of an internal connection exhaust pipe and an external connection exhaust pipe of a segmented exhaust pipe. The seal device comprises a tubular body, and the tubular body comprises a first seal part and a second seal part in the length direction, wherein the circumferential face of the outer wall of an internal exhaust pipe orifice is sleeved with the first seal part in an interference mode, and the second seal part can elastically deform. The second seal part is attached to the circumferential face of the outer wall of an external connection exhaust orifice in a pre-pressing and abutting-against mode. The seal device is simple in structure, the sealing performance, under high and low temperature changes and a vibration working condition, of the seal device can be improved, sealing reliability of the connector position of the segmented exhaust pipe can be improved, and the service life of the seal device can be prolonged. On the basis, the invention further discloses the segmented exhaust pipe with the seal device.
Description
Technical field
The present invention relates to technical field of engines, particularly a kind of seal arrangement for segmented outlet pipe.In addition, the invention still further relates to the segmented outlet pipe with sealing device.
Background technique
At present, the form of engine exhaust pipe is mainly divided into Integral exhaustion type pipe and segmented outlet pipe, and for multicylinder engine, Integral exhaustion type pipe cannot effectively discharge the thermal stress of work, easily causes distortion, damages the faults such as exhaust pipe gasket; Thereby segmented outlet pipe is widely used on multicylinder engine.
Segmented outlet pipe is is at least connected and composed by two sections of outlet pipes conventionally, and in the working environment of the interface of segmented outlet pipe in high temperature and vibration, the interface of each section of outlet pipe easily produces gas leak phenomenon.Therefore,, in order to ensure the effective service behaviour of motor, need further the reliability of segmented outlet pipe sealing to be developed to research.
Conventionally, the mutual plug-in mounting of the mouth of pipe of two sections of outlet pipes of segmented outlet pipe connects, wherein, the outlet pipe that mouth of pipe external diameter the is less tracheae 01 that runs in being, the outlet pipe that mouth of pipe external diameter is larger is externally connected exhaust pipe 02.In prior art, the sealing means conventionally adopting at the jointing of two sections of outlet pipes has two kinds: one, seal ring 03 sealing; Its two, heat expansion sealing.All there is certain technical problem in these two kinds of sealing means.
The first, for the mode of seal ring 03 sealing, please in the lump referring to shown in Fig. 1, Fig. 2 and Fig. 3.This kind of sealing means is set with four road seal rings 03 at the connecting end of inside exhaust pipe, is close to the interface end face of outlet pipe by four road seal rings 03, forms radial seal; Meanwhile, when exhaust, exhaust pressure presses to seal ring 03 side wall surface of closure gasket groove 04, to realize axial seal.But actual exhaust pressure is not high, is difficult to seal ring 03 to be effectively pressed on closure gasket groove 04 sidewall; In addition, due to the impact of machining error and assembly performance, closure gasket groove 04 width is greater than two seals ring 03 and compresses thickness, has reduced the stickiness of seal ring 03 with closure gasket groove 04, and gas leak phenomenon easily occurs.
Due to outlet pipe in the course of the work, be subject to the effect of high-temperature vibrating, two exhaust port places, seal ring 03 all can heat expansions, and the wear particle between outlet pipe and seal ring 03 is filled between the space of seal ring 03, cause seal ring 03 clamping stagnation and its vibration regulating power is lost.Hence one can see that, and the air leakage of this kind of sealing means is large, sealing was more easily lost efficacy.
The second, for heat expansion sealing means, refer to shown in Fig. 4 and Fig. 5.This kind of sealing means needs the strict size of controlling the jointing of each section of outlet pipe, after outlet pipe is installed, has small radial clearance S between jointing.So, the outlet pipe generation heat expansion under the condition of high temperature, thus the radial clearance S between the inside and outside outlet pipe mouth of pipe is reduced, and along with radial clearance S is eliminated in the rising of temperature gradually.
The sealing of heat expansion mode has larger narrow limitation, need be for the size at different motors, different outlet pipe material adjustment processing exhaust port place, with the heat expansion sealing under meeting in working order.But while adopting heat expansion mode to seal, the jointing radial clearance S of two sections of outlet pipes is less, assembling difficulty; And under the working state of lower temperature,, must there is gas leak phenomenon in heat expansion quantity not sufficient; Simultaneously, under this kind of sealing means, the radial clearance S of two sections of outlet pipes is less, easily there is sintering in jointing, and when the thermal expansion of jointing is inhomogeneous, cause exhaust port place clamping stagnation, cannot axially adjust exhaust port place, therefore, this kind of sealing means also more easily causes the dislocation of exhaust pipe gasket, serious problems such as outlet pipe generation crackle even.
In view of this, urgently the sealing for segmented exhaust port place provides a kind of seal arrangement, to improve the sealability under the working environment of high low temperature variation and vibration, thereby promote the reliability of segmented exhaust port place sealing and the working life of seal arrangement.
Summary of the invention
For the defect of above-mentioned existence, the technical problem to be solved in the present invention is to provide a kind of seal arrangement, thereby adapt to better in the environment of high low temperature variation and vibration, works, and guarantees the reliable and effective sealability at segmented exhaust port place.On this basis, the present invention also provides a kind of segmented motor outlet pipe with sealing device.
Seal arrangement provided by the invention, sealing for run in segmented outlet pipe tracheae and externally connected exhaust pipe jointing, described seal arrangement comprises the body of tubular, described body along its length, comprise one section with described in run in first sealed department of outer wall side face interference socket of the tracheae mouth of pipe, with one section can resiliently deformable the second sealed department, the inwall side face precompressed butt laminating of described the second sealed department and the described externally connected exhaust pipe mouth of pipe.
Preferably, described the first sealed department is set to the columniform Sealed casing pipe with the interior tracheae mouth of pipe interference fit of running in, and described the second sealed department is set to the sealing drum of spheric outer circumferential face.
Preferably, near the body port caliber size of described the second sealed department, in described, run between the outer diameter size and the inner diameter size of described externally connected exhaust pipe of tracheae.
Preferably, described body is heating resisting metal material, and described the second sealed department be set to can resiliently deformable thin-wall part, under assembling condition, can prepressing deformation the fit inwall side face of the described externally connected exhaust pipe mouth of pipe of described thin-wall part.
Preferably, described the first sealed department and described the second sealed department coaxially arrange.
Preferably, the elastic deformation amount who described the second sealed department is set is greater than the amount of deformation that outlet pipe expands with heat and contract with cold.
The present invention also provides a kind of segmented outlet pipe, comprise run in interconnective tracheae and externally connected exhaust pipe, and seal the seal arrangement of run in described tracheae and described externally connected exhaust pipe joint, wherein, described seal arrangement is the seal arrangement described in above any one claim.
Compared with prior art, seal arrangement provided by the invention can effectively solve when high low temperature variation, outlet pipe vibration, the easy gas leak phenomenon at exhaust port place, thereby, significantly improve the reliability that segmented outlet pipe seals.Particularly, sealing device comprises the body of tubular, and this body along its length, comprises the first sealed department and the second sealed department.During assembling, the tracheae that inside runs in is inserted by the port near the second sealed department, thereby make run in the being socketed on mouth of pipe of tracheae of the first sealed department, and, the internal surface of the first sealed department with in the outer wall side face interference fit of the tracheae mouth of pipe of running in, and then evade gas by seal arrangement with in the tracheae joint of running in leak; And for the second sealed department, by precompressed, make its resiliently deformable, thereby butt fits in the inwall side face at externally connected exhaust pipe mouth of pipe place, form in real time effective potted line or sealing surface, and, under the working state of segmented outlet pipe high temperature and vibration, while there is skew or each section of in axial direction relative movement of outlet pipe in the axis between each section of mouth of pipe of segmented outlet pipe, the second sealed department that is connected to externally connected exhaust pipe internal wall of pipe orifice can slide along the inwall of externally connected exhaust pipe, reduce the axial motion fretting wear between inside and outside outlet pipe, promoted axial adjustability; Meanwhile, under vibration operating mode, the resiliently deformable by the second sealed department is compensation motion amounts effectively, makes the effective butt in inside of the second sealed department and the externally connected exhaust pipe mouth of pipe, guarantees the reliable sealing of seal arrangement and externally connected exhaust pipe.Obviously, by the first sealed department with in run in tracheae interference fit seal, the second sealed department and externally connected exhaust pipe precompressed be close to sealing, effectively improved the sealing effect of seal arrangement, for the effectively worked guarantee that provides is being provided segmented outlet pipe completely.
In preferred version in the present invention, the first sealed department is set to circular Sealed casing pipe, and the second sealed department is set to the sealing drum of spheric outer circumferential face.Wherein, Sealed casing pipe with in the run in mouth of pipe phase interference fit of tracheae, make seal arrangement with in the tracheae effective sealing that runs in; The spheric outer circumferential face of sealing drum can be in real time and externally connected exhaust pipe guarantee butt sealing effectively reliably, especially, when the mouth of pipe axis of interior run in tracheae and extraneous outlet pipe occurs tilting, sealing cylinder still can provide complete interference potted line or sealing surface reliably.Obviously, so arrange, promoted adaptability and the adjustability of sealing device, and further improved the sealing of seal arrangement.
In another preferred version of the present invention, the caliber size of the body port of close the second sealed department is between the outer diameter of the interior tracheae that runs in and the inner diameter of externally connected exhaust pipe, so arrange, the tracheae that runs in being convenient to inserts seal arrangement, and under the operating mode of expanding with heat and contract with cold and vibrating, can provide free end for the resiliently deformable of the second sealed department, evade body port with in the tracheae that runs in contact and produce surface friction drag, damage the phenomenon of seal arrangement, further promoted adaptability and the reliability of sealing device sealing.
Accompanying drawing explanation
Fig. 1 is the structural representation of seal ring seal segmentation outlet pipe in prior art;
Fig. 2 is the structural representation of seal ring shown in Fig. 1;
Fig. 3 be seal ring shown in Fig. 1 and in the assembling schematic diagram that runs between the closure gasket groove of tracheae;
Fig. 4 is the structural representation of heat expansion sealed sectional outlet pipe in prior art;
Fig. 5 is the local enlarged diagram in A place shown in Fig. 4;
Fig. 6 is the structural representation of the formula of seal arrangement sealed sectional described in embodiment outlet pipe;
Fig. 7 is the local enlarged diagram in B place shown in Fig. 6;
Fig. 8 is the structural representation of seal arrangement shown in Fig. 6;
Fig. 9 is the axial sectional view of seal arrangement shown in Fig. 8.
In Fig. 1 to Fig. 5:
Tracheae 01, externally connected exhaust pipe 02, seal ring 03, closure gasket groove 04, radial clearance S inside run in.
In Fig. 6 to Fig. 9:
Radial clearance S1 between tracheae 1, externally connected exhaust pipe 2, body 3, the first sealed department 31, the second sealed department 32, body port 321, the inside and outside outlet pipe mouth of pipe inside runs in.
Embodiment
The problem that the segmented outlet pipe sealing means providing based on prior art exists, the present invention looks for another way, its core is to provide a kind of novel seal arrangement, thereby effectively solve existing segmented outlet pipe, at high low temperature, change and vibrate easy gas leak phenomenon under operating mode, promoting the service behaviour of segmented outlet pipe.In addition, another core of the present invention is to provide a kind of segmented outlet pipe with sealing device.
In order to make those skilled in the art person understand better the present invention program, below in conjunction with Figure of description, illustrate present embodiment.
Relative mounting positions relation when the tracheae that runs in the segmented outlet pipe relating to is herein connected with each section of outlet pipe with externally connected exhaust pipe defines, wherein, the jointing nozzle diameter of tracheae of inside running in is less, and the jointing nozzle diameter of external comb is larger, therefore, inside the run in mouth of pipe that the mouth of pipe of tracheae inserts externally connected exhaust pipe is realized and being connected.Just in order to express easily, so that scheme is easily understood, should be appreciated that the definition use of inside and outside outlet pipe should not limit the technological scheme that the application asks for protection.
Refer to Fig. 6, Fig. 7, Fig. 8 and Fig. 9, wherein, Fig. 6 is the structural representation of the formula of seal arrangement sealed sectional described in embodiment outlet pipe; Fig. 7 is the local enlarged diagram in B place shown in Fig. 6; Fig. 8 is the structural representation of seal arrangement shown in Fig. 6; Fig. 9 is the axial sectional view of seal arrangement shown in Fig. 8.
As shown in Fig. 6, Fig. 7 and Fig. 8, seal arrangement in this programme comprises the body 3 of tubular, this body 3 along its length, the tracheae that runs in inserts in the direction of sealing device, comprise that the first sealed department 31 of the tracheae 1 that runs in one section of sealing and the second sealed department 32, the first sealed departments 31 and second sealed department 32 of one section of sealing externally connected exhaust pipe 2 are tubular structure.Particularly, in the first sealed department 31 is socketed on, run on tracheae 1 mouth of pipe, and the internal surface of this first sealed department 31 with in the run in outer wall side face interference fit of tracheae 1 mouth of pipe, thereby the mouth of pipe perisporium of the tracheae 1 that runs in sealing.And the second sealed department 32 is fitted with the inwall side face precompressed butt of externally connected exhaust pipe 2, form reliable potted line or sealing surface, by seal arrangement being arranged to radial clearance S1 place between the inside and outside outlet pipe mouth of pipe, effectively avoid Leakage Gas.And, under high temperature and effect of vibration, when two outlet pipes that are connected produce while relatively moving, the second sealed department 32 can be adaptively slides along the inwall of externally connected exhaust pipe 2, the departure of the two outlet pipe mouth of pipe axis that adjusting is connected, and then effectively guarantee in real time reliable sealing.
And the second sealed department 32 can resiliently deformable, when assembling, by the second sealed department 32 precompressed resiliently deformables, make the second sealed department 32 be tight against the inwall side face of externally connected exhaust pipe 2, promote the effective sealing of the second sealed department 32 and externally connected exhaust pipe 2 mouths of pipe.Under the working state of motor in high temperature and vibration, can there is heat expansion and vibration in segmented outlet pipe, the mouth of pipe axis of two outlet pipes that are connected can produce inclination angle and skew, and the performance of the elastically deformable of the second sealed department 32, departure between can real-Time Compensation two outlet pipe mouth of pipe axis, effectively promotes the gluing, sealing of the second sealed department 32 and externally connected exhaust pipe 2 internal wall of pipe orifice faces.
Wherein, two sections of sealed departments on body 3 distribute along the length direction of body, can be regarded as, and body 3 plug-in mountings that this length direction is tubular enter the installation direction of inside and outside outlet pipe.During installation, the tracheae 1 that inside runs in is entered by the side near the second sealed department 32, then with the first sealed department 31 interference assemblings.
Further, the first sealed department 31 is set to the columniform Sealed casing pipe with interior tracheae 1 mouth of pipe interference fit of running in, and the second sealed department 32 is set to the sealing drum of spheric outer circumferential face.Please in the lump in conjunction with shown in Fig. 8 and Fig. 9.
Wherein, the outer diameter of tracheae 1 mouth of pipe that runs in the diameter of Sealed casing pipe is less than so that Sealed casing pipe with in the run in mouth of pipe phase interference fit of tracheae 1.During installation, the tracheae 1 that inside runs in inserts seal arrangements by the second sealed department 32, adopts hot charging mode, complete the first sealed department 31 with in the run in interference assembling of tracheae 1.
And for sealing drum, the outer circumferential face of its spheric can contact sealing with the anchor ring butt of the inwall of externally connected exhaust pipe 2, forms complete potted line one.And when two exhaust ports that are connected expand with heat and contract with cold and vibrate, the potted line between sphere and anchor ring can be adjusted in real time with the movement of the axis of two outlet pipes; That is to say, when the inner ring surface of the sphere of the second sealed department 32 and externally connected exhaust pipe 2 connects, under External Force Acting, relatively move being subject to, but still can remain complete reliable potted line, and then, the sealing effect of lift-off seal device under high temperature and vibration.
In this programme, the second sealed department 32 is fitted with the inwall precompressed butt of externally connected exhaust pipe 2, thereby form one complete potted line, segmented outlet pipe is sealed.Certainly, the precompressed amount increase along with the second sealed department 32, also can form complete sealing surface between the second sealed department 32 and externally connected exhaust pipe 2.Comparatively speaking, potted line between the sphere of the second sealed department 32 and the inner ring surface of externally connected exhaust pipe 2 is optimal way, can be more conducive to regulate the position skew adapting between two sections of outlet pipe mouths of pipe, guarantee the reliable sealing that the second sealed department 32 and externally connected exhaust pipe 2 are real-time.
In addition, the second sealed department 32 is not limited to strict spheric outer circumferential face, and according to the requirement of as installed and operating mode, the outer circumferential face of the second sealed department 32 also can be approximate spheric, for example, can be designed to elliposoidal.Known, after prepressing deformation is installed, only need satisfied the second sealed department 32 can there is sphere or the nearly outer circumferential face of sphere and the inner ring surface butt of externally connected exhaust pipe 2 and contact, form reliable and effective potted line and all can.
In the present embodiment, the first sealed department 31 directly joins with the mode that the second sealed department 32 utilizes radian transition to be connected, and forms body 3, certainly, also can be connected the first sealed department 31 and the second sealed department 32 by another section of convergence part is set between the two, be not limited in the mode in the present embodiment.
Obviously, compared with prior art, the structure of the seal arrangement in this programme is simpler, and its design size has good controllability, effectively improves processing technology, has reduced the processing cost of outlet pipe.
For further adjustability and the sealing of lift-off seal device, this body 3 runs between the outer diameter size of tracheae 1 and the inner diameter size of externally connected exhaust pipe 2 in being arranged near the caliber size of a side body port 321 of the second sealed department 32.As shown in Figure 6, in being assemblied in, seal arrangement runs in while sealing between tracheae 1 and externally connected exhaust pipe 2, making this body port 321 is free end, thereby, enough spaces can be provided for the resiliently deformable of the second sealed department 32, and more effectively lift-off seal device is to the journal offset of the inside and outside outlet pipe mouth of pipe and axially movable adjustability and adaptability.
In the working environment of seal arrangement between each section of outlet pipe in high temperature, therefore, the body 3 of sealing device can adopt heating resisting metal material, to improve the Acceptable life of seal arrangement, and the second sealed department 32 is set to thin-wall part that can resiliently deformable.So, can there is resiliently deformable in the second sealed department 32 of metal thin-wall, and the prepressing deformation of this second sealed department 32 while being beneficial to assembling, promotes the operability of assembling; Meanwhile, also can make the second sealed department 32 reliably fit in the inwall side face of the extraneous outlet pipe mouth of pipe.And, utilize its flexible effect, also can promote sealing device to the joint of the inside and outside outlet pipe mouth of pipe adjustability of relative movement radially, guarantee the sealability of segmented outlet pipe under high temperature and vibration operating mode.
Certainly, the second sealed department 32 also can be the parts that other can resiliently deformable, is not limited to thin-wall part, when assembling, can meet the second sealed department 32 prepressing deformation butt externally connected exhaust pipes, and makes full use of the requirement that elastic reaction improves sealing and all can.
As shown in Figure 9, the first sealed department 31 and the second sealed department 32 in this programme coaxially arrange, and make the seal arrangement assembly technology of tracheae 1 during with externally connected exhaust pipe 2 that run in being installed on better, and processing technology are convenient and simple; Under sealing state, also can make the inside and outside outlet pipe mouth of pipe coaxially arrange, lift-off seal device under high temperature and vibration, the reliable sealing performance to inside and outside outlet pipe.Meanwhile, also body port 321 can be processed as to one section of cylindrical drum, make the overall structure of seal arrangement attractive in appearance.
According under actual conditions, the expand with heat and contract with cold size of amount of deformation of outlet pipe, also can choose the material of the second sealed department 32, make its elastic deformation amount be greater than the amount of deformation that outlet pipe expands with heat and contract with cold, fully meet the adjusting of seal arrangement to journal offset between be connected two sections of outlet pipes, guarantee reliable sealability.
Except above-mentioned seal arrangement, the present invention also provides a kind of segmented outlet pipe with sealing device, this outlet pipe comprises run in interconnective tracheae 1 and externally connected exhaust pipe 2, and the seal arrangement of run in sealing tracheae 1 and externally connected exhaust pipe 2 joints, wherein, sealing device is above-mentioned seal arrangement, and other part-structures of segmented outlet pipe please refer to prior art, repeat no more herein.
Above seal arrangement provided by the present invention and segmented outlet pipe are described in detail.Only for object lesson of the present invention, set forth herein, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, not departing under the prerequisite of feature of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. a seal arrangement, sealing for run in segmented outlet pipe tracheae (1) and externally connected exhaust pipe (2) jointing, it is characterized in that, described seal arrangement comprises the body (3) of tubular, described body (3) along its length, comprise one section with described in run in first sealed department (31) of outer wall side face interference socket of tracheae (1) mouth of pipe, with one section can resiliently deformable the second sealed department (32), the inwall side face precompressed butt laminating of described the second sealed department (32) and described externally connected exhaust pipe (2) mouth of pipe.
2. seal arrangement according to claim 1, it is characterized in that, described the first sealed department (31) is set to the columniform Sealed casing pipe with the interior tracheae that runs in (1) mouth of pipe interference fit, and described the second sealed department (32) is set to the sealing drum of spheric outer circumferential face.
3. seal arrangement according to claim 1 and 2, it is characterized in that, body port (321) caliber size of close described the second sealed department (32) runs between the outer diameter size of tracheae (1) and the inner diameter size of described externally connected exhaust pipe (2) in described.
4. seal arrangement according to claim 3, it is characterized in that, described body (3) is heating resisting metal material, and described the second sealed department (32) is set to thin-wall part that can resiliently deformable, under assembling condition, can prepressing deformation the fit inwall side face of described externally connected exhaust pipe (2) mouth of pipe of described thin-wall part.
5. seal arrangement according to claim 4, is characterized in that, described the first sealed department (31) coaxially arranges with described the second sealed department (32).
6. seal arrangement according to claim 5, is characterized in that, the elastic deformation amount that described the second sealed department (32) is set is greater than the amount of deformation that outlet pipe expands with heat and contract with cold.
7. a segmented outlet pipe, comprise run in interconnective tracheae (1) and externally connected exhaust pipe (2), and seal the seal arrangement of run in described tracheae (1) and described externally connected exhaust pipe (2) joint, it is characterized in that, described seal arrangement is the seal arrangement described in any one in claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410213441.XA CN104005880A (en) | 2014-05-20 | 2014-05-20 | Seal device and segmented exhaust pipe with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410213441.XA CN104005880A (en) | 2014-05-20 | 2014-05-20 | Seal device and segmented exhaust pipe with same |
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| CN104005880A true CN104005880A (en) | 2014-08-27 |
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| CN201410213441.XA Pending CN104005880A (en) | 2014-05-20 | 2014-05-20 | Seal device and segmented exhaust pipe with same |
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Cited By (7)
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| CN105089846A (en) * | 2014-05-05 | 2015-11-25 | 易安迪机车公司 | Sealing body for isolating vibrations from cylinder body to nozzle |
| CN106150649A (en) * | 2015-05-13 | 2016-11-23 | 曼卡车和巴士股份公司 | Layout is connected for connecting the pipe of two pipe ends |
| CN106703941A (en) * | 2017-01-12 | 2017-05-24 | 万志帅 | Active filtering system for automobile exhaust particle emissions |
| CN107165712A (en) * | 2017-07-13 | 2017-09-15 | 广西玉柴机器股份有限公司 | Engine is segmented the connection sealing structure of blast pipe |
| CN110966050A (en) * | 2019-12-20 | 2020-04-07 | 东方电气集团东方汽轮机有限公司 | Steam turbine steam inlet insertion pipe sealing connection structure |
| CN111577428A (en) * | 2020-04-17 | 2020-08-25 | 中国第一汽车股份有限公司 | Exhaust device and control method thereof |
| CN115095442A (en) * | 2022-06-30 | 2022-09-23 | 广西玉柴机器股份有限公司 | Sectional type exhaust pipe with sealing filler and sealing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105089846A (en) * | 2014-05-05 | 2015-11-25 | 易安迪机车公司 | Sealing body for isolating vibrations from cylinder body to nozzle |
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| CN107165712A (en) * | 2017-07-13 | 2017-09-15 | 广西玉柴机器股份有限公司 | Engine is segmented the connection sealing structure of blast pipe |
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| CN110966050A (en) * | 2019-12-20 | 2020-04-07 | 东方电气集团东方汽轮机有限公司 | Steam turbine steam inlet insertion pipe sealing connection structure |
| CN111577428A (en) * | 2020-04-17 | 2020-08-25 | 中国第一汽车股份有限公司 | Exhaust device and control method thereof |
| CN115095442A (en) * | 2022-06-30 | 2022-09-23 | 广西玉柴机器股份有限公司 | Sectional type exhaust pipe with sealing filler and sealing method thereof |
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Application publication date: 20140827 |