CN107859795A - A kind of automobile using bellows - Google Patents
A kind of automobile using bellows Download PDFInfo
- Publication number
- CN107859795A CN107859795A CN201711133742.1A CN201711133742A CN107859795A CN 107859795 A CN107859795 A CN 107859795A CN 201711133742 A CN201711133742 A CN 201711133742A CN 107859795 A CN107859795 A CN 107859795A
- Authority
- CN
- China
- Prior art keywords
- bellows
- connecting tube
- automobile
- spring
- damping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000000694 effects Effects 0.000 claims abstract description 23
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 19
- 239000010935 stainless steel Substances 0.000 claims abstract description 19
- 238000013016 damping Methods 0.000 claims description 51
- 239000007787 solid Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 230000007774 longterm Effects 0.000 abstract description 8
- 230000003139 buffering effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls, or other movable or insertable locking members
- F16L37/122—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls, or other movable or insertable locking members using hooks tightened by a wedge section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Exhaust Silencers (AREA)
Abstract
The present invention provides a kind of automobile using bellows, is related to auto parts and components field.The automobile using bellows, including stainless steel net, the inside fixed cover of the stainless steel net is connected to bellows, one end fixed cover of the bellows is connected to the first connecting tube, the other end movable sleeve of the bellows is connected to the second connecting tube, the inner ring of the bellows and movable sleeve is connected to filter shake spring between positioned at the first connecting tube and the second connecting tube, the inwall of the bellows offers buckling groove, the outer surface of second connecting tube is fixedly connected with clamping block, and right side of the clamping block away from the second connecting tube is through buckling groove and extends to the inside of buckling groove.The automobile using bellows; by setting the effect filtered shake spring and serve filter shake well, the deformation of bellows caused vibrations under long-term working condition is effectively protected, filter shake effectively can be carried out to bellows; the service life of bellows is effectively increased, makes the life-span of bellows higher.
Description
Technical field
The present invention relates to technical field of automobile parts, specially a kind of automobile using bellows.
Background technology
Bellows：It is connecting elements important in automotive field.Using its own distinctive air-tightness, and adopted in shaping
With double-layer hydraulic, using water as medium, the bellows made is more beneficial for the discharge of vehicle exhaust, by ring caused by motor exhaust
Border pollution bottoms out.For absorbing the vibrations of gas extraction system, undue thermal deformation is prevented, so as to provide comfortable ride
Sense.
The bellows installed at present on automobile at work due to being provided with corrugated flexible hose and stainless steel net on bellows,
The discharge duct of automobile can be made there is shock-absorbing function, but under the long-term working condition of engine, because corrugated flexible hose is long-term
Filter shake, deformation can make the situation that corrugated flexible hose ruptures, and reduce the service life of bellows.
The content of the invention
（One）The technical problem of solution
In view of the shortcomings of the prior art, the invention provides a kind of automobile using bellows, solves corrugated flexible hose in long-term filter
Shake, deformation can make the situation that corrugated flexible hose ruptures, and reduce the service life problem of bellows.
（Two）Technical scheme
To realize object above, the present invention is achieved by the following technical programs：A kind of automobile using bellows, including stainless steel
Net, the inside fixed cover of the stainless steel net are connected to bellows, and one end fixed cover of the bellows is connected to the first connection
Pipe, the other end movable sleeve of the bellows are connected to the second connecting tube, the inner ring of the bellows and positioned at the first connecting tube and
Second connecting tube movable sleeve between is connected to filter shake spring, and the inwall of the bellows offers buckling groove, second connection
The outer surface of pipe is fixedly connected with clamping block, and right side of the clamping block away from the second connecting tube is through buckling groove and extends to card
The inside of access slot, the inner ring fixed cover of the filter shake spring are connected to connection flexible pipe, and one end of the connection flexible pipe is through filter shake bullet
Spring and the first connecting tube and the inside for extending to the first connecting tube, the other end of the connection flexible pipe through filter shake spring and extend
The inside of second connecting tube, the one end of second connecting tube away from filter shake spring is through bellows and extends to the outer of bellows
Portion, adpting flange, second connecting tube one end and connection away from filter shake spring are provided with the right side of the stainless steel net
Flange is fixedly connected, and the one end of first connecting tube away from filter shake spring through bellows and extends to the left side of bellows,
The outer surface of first connecting tube is simultaneously provided with connection end positioned at the outside of bellows, and the inwall of the connection end is fixedly connected
There is the first clamping ring, the outer wall of first connecting tube is fixedly connected with the second clamping ring, the first clamping ring and the second card
Ring activity clamping is connect, the inwall of the connection end is simultaneously fixedly connected with damping sleeve pipe on the right side of the first clamping ring, described to subtract
The internal activity of shake sleeve pipe is connected with damping spring, and the one end of the damping spring away from connection end is fixedly connected with connecting rod,
The one end of the connecting rod away from damping spring is through damping sleeve pipe and the first connecting tube with being set inside connection end is fixed and connected
Connect.
Preferably, first connecting tube is identical with the specification of the second connecting tube, and second connecting tube is away from filter shake bullet
One end of spring is welded and fixed with adpting flange.
Preferably, the outer surface both ends of the connection flexible pipe are fixedly sleeved with the first connecting tube and the second connecting tube respectively.
Preferably, the quantity of the damping sleeve pipe has two, and two damping sleeve pipes are symmetrical with the axis of the first connecting tube
Set.
Preferably, it is described filter shake spring one end and the inwall of damping sleeve pipe be welded and fixed, the damping spring it is another
End is welded and fixed with connecting rod.
Preferably, the shape of the stainless steel net is in a tubular form.
（Three）Beneficial effect
The invention provides a kind of automobile using bellows.Possesses following beneficial effect：
1st, the automobile using bellows, by the bellows, the damping spring that are set inside stainless steel net bellows can be made to have very
Good damping effect, by setting the effect filtered shake spring and serve filter shake well, bellows is effectively protected long-term
The deformation of caused vibrations under working condition, and the connection flexible pipe set by damping spring inner ring, effectively can enter to bellows
Row filter shake, effectively increases the service life of bellows, makes the life-span of bellows higher.
2nd, the automobile using bellows, the first clamping ring and the second clamping ring set by connection end inwall, the first clamping
Ring and the second clamping ring activity clamping, can make the first connecting tube in the internal activity of connection end, and fix by connection end inwall
The damping sleeve pipe of connection, damping sleeve pipe are internally provided with damping spring and connecting rod, are fixed by connecting rod and the first connecting tube
Connection, can make bellows enter row buffering filter shake, effectively reduce bellows vibrations caused by noise, reduce car running process in
Noise, make automobile exhaust system more efficient.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is structure sectional view of the present invention；
Fig. 3 is partial enlarged drawing at A in structure chart 2 of the present invention；
Fig. 4 is partial enlarged drawing at B in structure chart 2 of the present invention.
Wherein, 1 first connecting tube, 2 damping sleeve pipes, 3 second connecting tubes, 4 adpting flanges, 5 stainless steel nets, 6 connection ends,
7 filter shake springs, 8 connection flexible pipes, 9 bellowss, 10 buckling grooves, 11 clamping blocks, 12 first clamping rings, 13 second clamping rings, 14 connect
Extension bar, 15 damping springs.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of automobile using bellows, as Figure 1-4, including stainless steel net 5, stainless (steel) wire
In a tubular form, the inside fixed cover of stainless steel net 5 is connected to bellows 9 to the shape of set 5, and one end fixed cover of bellows 9 is connected to the
One connecting tube 1, the other end movable sleeve of bellows 9 are connected to the second connecting tube 3, and the inner ring of bellows 9 is simultaneously located at the first connecting tube 1
And second the movable sleeve between of connecting tube 3 be connected to filter shake spring 7, the inwall of bellows 9 offers buckling groove 10, the second connecting tube
3 outer surface is fixedly connected with clamping block 11, and right side of the clamping block 11 away from the second connecting tube 3 is through buckling groove 10 and extends to
The inside of buckling groove 10, the inner ring fixed cover of filter shake spring 7 are connected to connection flexible pipe 8, the outer surface both ends of connection flexible pipe 8 respectively with
First connecting tube 1 and the second connecting tube 3 are fixedly sleeved, and bellows 9, the filter shake spring 7 set by the inside of stainless steel net 5 can
Make bellows 9 that there is good damping effect, by setting the effect filtered shake spring 7 and serve filter shake well, effectively protection
The deformation of bellows caused vibrations under long-term working condition, and pass through and filter the connection flexible pipe that shake spring 7 inner ring is set
8, filter shake effectively can be carried out to bellows 9, effectively increase the service life of bellows 9, make the life-span of bellows 9 higher, even
One end of flexible pipe 8 is connect through the filter shake connecting tube 1 of spring 7 and first and extends to the inside of the first connecting tube 1, connection flexible pipe 8
The other end is through filter shake spring 7 and extends the inside of the second connecting tube 3, and the one end of the second connecting tube 3 away from filter shake spring 7 is run through
Bellows 9 and the outside for extending to bellows 9, the right side of stainless steel net 5 are provided with adpting flange 4, and the second connecting tube 3 is remote
One end of filter shake spring 7 is fixedly connected with adpting flange 4, and the first connecting tube 1 is identical with the specification of the second connecting tube 3, and second connects
The one end of adapter 3 away from filter shake spring 7 is welded and fixed with adpting flange 4, and the one end of the first connecting tube 1 away from filter shake spring 7 is passed through
Wear bellows 9 and extend to the left side of bellows 9, the outer surface of the first connecting tube 1 is simultaneously provided with company positioned at the outside of bellows 9
End 6 is connect, the inwall of connection end 6 is fixedly connected with the first clamping ring 12, and the outer wall of the first connecting tube 1 is fixedly connected with the second clamping
Ring 13, the first clamping ring 12 and the activity clamping of the second clamping ring 13, the inwall of connection end 6 and the right side for being located at the first clamping ring 12
Damping sleeve pipe 2 is fixedly connected with, the quantity of damping sleeve pipe 2 there are two, and two damping sleeve pipes 2 are with the axis of the first connecting tube 1
It is symmetrical arranged, the internal activity of damping sleeve pipe 2 is connected with damping spring 15, and the one end of damping spring 15 away from connection end 6 is fixed
Connecting rod 14 is connected with, what the one end of connecting rod 14 away from damping spring 15 was set through damping sleeve pipe 2 and with the inside of connection end 6
First connecting tube 1 is fixedly connected, and one end of damping spring 15 and the inwall of damping sleeve pipe 2 are welded and fixed, damping spring 15 it is another
One end is welded and fixed with connecting rod 14, the first clamping ring 12 and the second clamping ring 13 set by the inwall of connection end 6, the first card
The activity clamping of 12 and second clamping ring of ring 13 is connect, the first connecting tube 1 can be made in the internal activity of connection end 6, and pass through connection end 6
The damping sleeve pipe 2 that inwall is fixedly connected, damping sleeve pipe 2 are internally provided with damping spring 15 and connecting rod 14, pass through connecting rod 14
It is fixedly connected with the first connecting tube 1, bellows 9 can be made to enter row buffering filter shake, is effectively reduced bellows 9 and shake caused make an uproar
Sound, the noise in car running process is reduced, makes automobile exhaust system more efficient.
Operation principle：The automobile using bellows, the bellows 9 set by the inside of stainless steel net 5, filter shake spring 7 can
Make bellows 9 that there is good damping effect, by setting the effect filtered shake spring 7 and serve filter shake well, effectively protection
The deformation of the caused vibrations under long-term working condition of bellows 9, and pass through and filter the connection flexible pipe that shake spring 7 inner ring is set
8, filter shake effectively can be carried out to bellows 9, effectively increase the service life of bellows 9, make the life-span of bellows 9 higher,
In summary, the automobile using bellows, the bellows 9 set by the inside of stainless steel net 5, filter shake spring 7 can make ripple
Line pipe 9 has good damping effect, by setting the effect filtered shake spring 7 and serve filter shake well, effectively protects ripple
The deformation of the caused vibrations under long-term working condition of line pipe 9, and the connection flexible pipe 8 set by filtering shake spring 7 inner ring, can
Filter shake effectively is carried out to bellows 9, effectively increases the service life of bellows 9, the first card set by the inwall of connection end 6
The clamping ring 13 of ring 12 and second, the first clamping ring 12 and the activity clamping of the second clamping ring 13 are connect, can connect the first connecting tube 1
The internal activity at end 6, and the damping sleeve pipe 2 being fixedly connected by the inwall of connection end 6, damping sleeve pipe 2 are internally provided with damping bullet
Spring 15 and connecting rod 14, it is fixedly connected by connecting rod 14 with the first connecting tube 1, bellows 9 can be made to enter row buffering filter shake, effectively
Reduce bellows 9 and shake caused noise.
Also, the automobile using bellows, the first clamping ring 12 and the second clamping ring 13 set by the inwall of connection end 6,
First clamping ring 12 and the activity clamping of the second clamping ring 13, can make the first connecting tube 1 in the internal activity of connection end 6, and pass through
The damping sleeve pipe 2 that the inwall of connection end 6 is fixedly connected, damping sleeve pipe 2 are internally provided with damping spring 15 and connecting rod 14, pass through company
Extension bar 14 is fixedly connected with the first connecting tube 1, and bellows 9 can be made to enter row buffering filter shake, is effectively reduced the vibrations of bellows 9 and is produced
Noise, reduce car running process in noise, make automobile exhaust system more efficient.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of automobile using bellows, including stainless steel net（5）, it is characterised in that：The stainless steel net（5）Inside consolidate
Surely it is socketed with bellows（9）, the bellows（9）One end fixed cover be connected to the first connecting tube（1）, the bellows（9）'s
Other end movable sleeve is connected to the second connecting tube（3）, the bellows（9）Inner ring and be located at the first connecting tube（1）Connect with second
Adapter（3）Movable sleeve is connected to filter shake spring between（7）, the bellows（9）Inwall offer buckling groove（10）, described
Two connecting tubes（3）Outer surface be fixedly connected with clamping block（11）, the clamping block（11）Away from the second connecting tube（3）Right side
Through buckling groove（10）And extend to buckling groove（10）Inside, it is described filter shake spring（7）Inner ring fixed cover be connected to connection it is soft
Pipe（8）, the connection flexible pipe（8）One end through filter shake spring（7）With the first connecting tube（1）And extend to the first connecting tube
（1）Inside, the connection flexible pipe（8）The other end through filter shake spring（7）And extend the second connecting tube（3）Inside, institute
State the second connecting tube（3）Away from filter shake spring（7）One end run through bellows（9）And extend to bellows（9）Outside, it is described
Stainless steel net（5）Right side be provided with adpting flange（4）, second connecting tube（3）Away from filter shake spring（7）One end with
Adpting flange（4）It is fixedly connected, first connecting tube（1）Away from filter shake spring（7）One end run through bellows（9）And extend
To bellows（9）Left side, first connecting tube（1）Outer surface and be located at bellows（9）Outside be provided with connection end
（6）, the connection end（6）Inwall be fixedly connected with the first clamping ring（12）, first connecting tube（1）Outer wall fix connect
It is connected to the second clamping ring（13）, the first clamping ring（12）With the second clamping ring（13）Activity clamping, the connection end（6）'s
Inwall is simultaneously located at the first clamping ring（12）Right side be fixedly connected with damping sleeve pipe（2）, the damping sleeve pipe（2）Internal activity
It is connected with damping spring（15）, the damping spring（15）Away from connection end（6）One end be fixedly connected with connecting rod（14）, institute
State connecting rod（14）Away from damping spring（15）One end run through damping sleeve pipe（2）And and connection end（6）The first of inside setting
Connecting tube（1）It is fixedly connected.
A kind of 2. automobile using bellows according to claim 1, it is characterised in that：First connecting tube（1）With second
Connecting tube（3）Specification it is identical, second connecting tube（3）Away from filter shake spring（7）One end and adpting flange（4）Welding is solid
It is fixed.
A kind of 3. automobile using bellows according to claim 1, it is characterised in that：The connection flexible pipe（8）Outer surface
Both ends respectively with the first connecting tube（1）With the second connecting tube（3）It is fixedly sleeved.
A kind of 4. automobile using bellows according to claim 1, it is characterised in that：The damping sleeve pipe（2）Quantity have
Two, two damping sleeve pipes（2）With the first connecting tube（1）Axis be symmetrical arranged.
A kind of 5. automobile using bellows according to claim 1, it is characterised in that：The damping spring（15）One end with
Damping sleeve pipe（2）Inwall be welded and fixed, the damping spring（15）The other end and connecting rod（14）It is welded and fixed.
A kind of 6. automobile using bellows according to claim 1, it is characterised in that：The stainless steel net（5）Shape
In a tubular form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133742.1A CN107859795A (en) | 2017-11-16 | 2017-11-16 | A kind of automobile using bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133742.1A CN107859795A (en) | 2017-11-16 | 2017-11-16 | A kind of automobile using bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107859795A true CN107859795A (en) | 2018-03-30 |
Family
ID=61701879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711133742.1A Withdrawn CN107859795A (en) | 2017-11-16 | 2017-11-16 | A kind of automobile using bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107859795A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109050510A (en) * | 2018-09-14 | 2018-12-21 | 江阴市永昌交通机械部件有限公司 | A kind of fixed device of air-brake coupling hose interface |
| CN114704368A (en) * | 2022-06-06 | 2022-07-05 | 威海海洋职业学院 | Exhaust device for ship engine |
-
2017
- 2017-11-16 CN CN201711133742.1A patent/CN107859795A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109050510A (en) * | 2018-09-14 | 2018-12-21 | 江阴市永昌交通机械部件有限公司 | A kind of fixed device of air-brake coupling hose interface |
| CN114704368A (en) * | 2022-06-06 | 2022-07-05 | 威海海洋职业学院 | Exhaust device for ship engine |
| CN114704368B (en) * | 2022-06-06 | 2022-08-23 | 威海海洋职业学院 | Exhaust device for ship engine |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180330 |
|
| WW01 | Invention patent application withdrawn after publication |