CN106523116A - Exhaust system with accelerating tube and muffling function - Google Patents
Exhaust system with accelerating tube and muffling function Download PDFInfo
- Publication number
- CN106523116A CN106523116A CN201611200744.3A CN201611200744A CN106523116A CN 106523116 A CN106523116 A CN 106523116A CN 201611200744 A CN201611200744 A CN 201611200744A CN 106523116 A CN106523116 A CN 106523116A
- Authority
- CN
- China
- Prior art keywords
- accelerating tube
- circular arc
- accelerating
- tube
- extraction system
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
-
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
An exhaust system with an accelerating tube and a muffling function comprises the accelerating tube and a muffler. The accelerating tube is in a shape with the small two ends and the big middle. The inner diameter of the accelerating tube is increased gradually starting from a head inlet. The inner diameter of the tail is decreased gradually to zero. A joint matched with a gas outlet of an engine in size is mounted at the head inlet of the accelerating tube. The joint is fixed to the inlet of the accelerating tube or movably mounted at the inlet of the accelerating tube. An open hole communicating with the interior of the accelerating tube is formed in the middle of the accelerating tube. An inlet of the muffler communicates with the open hole. The exhaust system is capable of increasing the power of the engine, being good in muffling effect and being increased in the task load capacity.
Description
Technical field
The present invention relates to a kind of gas extraction system with accelerating tube and silencing function.
Background technology
Discharging unit of internal combustion engine is typically by being constituted using steel exhaustor and deafener.To general gas extraction system, start
After machine expellant gas run into exhaustor or deafener, slowing down suddenly to reduce engine power.If electromotor does not fill noise reduction
Then noise is very big for device, and vent gas treatment effect is bad, and harmful gass can not be converted completely.
In order to reduce delivery temperature, make full use of the energy and extend exhaust apparatus service life, have on exhaustor
Set up heat exchanger.Such complex structure, heat exchange efficiency are low, and increase weight.
Therefore, a kind of engine power, good muffling effect, lightweight exhaust apparatus of increasing is invented to lifting helicopter
Performance it is significant.
The content of the invention
The present invention solves the deficiencies in the prior art and provides a kind of engine power, good muffling effect, lightweight of increasing
The gas extraction system with accelerating tube and silencing function.
A kind of gas extraction system with accelerating tube and silencing function, including accelerating tube and deafener, the accelerating tube are two
Little shape broad in the middle, the accelerating tube start internal diameter from head inlet and gradually increase, and afterbody internal diameter is gradually reduced up to sealing,
The joint matched with electromotor gas outlet size is installed on the head inlet of the accelerating tube, the joint is fixed on acceleration
On the entrance of pipe or it is movably arranged on the entrance of accelerating tube, in the middle part of the accelerating tube, is provided with opening of connecting with inside accelerating tube
Hole, the import of the deafener are connected with the perforate.
The accelerating tube is by being formed by connecting along the symmetrically arranged two half of bodys of centrage.
The half of body of described two is welded by scrap (bridge), and the joint face of the scrap (bridge) is plane.
The accelerating tube includes accelerating sections, flat segments, back-flexing section and breeze way from head to afterbody successively.
The accelerating sections caliber increases from import successively to outlet, the bending direction phase of the back-flexing section and accelerating sections
Instead, the breeze way is pyramid type.
The shape of the accelerating tube central axis from head inlet to afterbody successively include radius for R1 the first circular arc, away from
From the first straight line for L1, radius be second circular arc of R2, radius be the three-arc of R3, radius for R4 the 4th circular arc, away from
From the second straight line for L2, radius be the 5th circular arc of R5, radius for R6 the 6th circular arc, the 3rd straight line that distance is L3；
It is described accelerate tube inlet caliber be φ 1, the caliber in the first circular arc and first straight line junction be φ 2, the
Caliber at three-arc and the 4th circular sliding slopes be φ 3, caliber at the 4th circular arc and the 5th circular sliding slopes be φ 4, the
Caliber at five circular arcs and the 6th circular sliding slopes is φ 5, the caliber in the 6th circular arc and second straight line junction is φ 6；
The circular arc direction of first circular arc, the second circular arc, three-arc and the 4th circular arc is consistent, the 5th circular arc with
The circular arc of the 4th circular arc is in opposite direction, and the 6th circular arc is consistent with the circular arc direction of the 5th circular arc；
The accelerating tube constitutes accelerating sections in the first circular arc, the second circular arc, three-arc and the 4th circular arc sector, second
Linearity region constitutes flat segments, constitutes back-flexing section, constitutes in the 3rd linearity region in the 6th circular arc and the 5th circular arc sector
Breeze way.
The R1 is more than 45mm, the R2>R3>R4>R5, R5<R6, the φ 1<φ2<φ3<φ 4, φ 4>φ5>φ 6,
The taper of breeze way is 1:2.25～1:2.85.
The taper of the breeze way is 1:2.7.
The entrance of the deafener is welded with accelerating tube tapping, and described deafener abdominal part passes through the first gripper shoe and adds
Fast pipe shell reinforcement of weld.
The second gripper shoe is welded with the acceleration pipe shell, the accelerating tube is mounted and fixed to by the second gripper shoe
On body.
Due to adopting said structure, accelerate tube head to be the joint matched with electromotor gas outlet, pacified according to electromotor
Holding position and installing space, joint can be distorted to the left or to the right.Accelerating tube starts internal diameter from entrance and gradually increases, and so starts
Machine expellant gas will not slow down, and accelerate on the contrary, thus not reduce engine power, have relative increase power on the contrary.Accelerating tube
Afterbody internal diameter is gradually reduced, and making electromotor be drained into the gas in accelerating tube has individual relief area, plays burning completely, slows down and drop
The effect of temperature.Middle part perforate, makes from after the buffered cooling of electromotor expellant gas, and from middle part, tapping enters deafener.Jing
After having gone through relief area and deafener secondary buffer, the effect of second-time burning and secondary noise reduction has been reached.Described accelerating tube is by a left side
Right two halves are welded by scrap (bridge), are stamping forming abnormity per part, and scrap (bridge) face is a plane, is so easily processed into
Type, scrap (bridge) face are easy to welded seal for a plane.The entrance of described deafener and accelerating tube tapping welded seal, it is described
Deafener abdominal part is by gripper shoe and acceleration pipe shell reinforcement of weld.The welded and installed gripper shoe on pipe shell is accelerated, exhaust system
System is mounted and fixed on airframe by installing gripper shoe.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the shape graph of central axis of the present invention.
Fig. 3 is the left view of the present invention.
Fig. 4 is the half of body scrap (bridge) schematic diagram of accelerating tube two of the present invention.
Specific embodiment
The structure and operation principle of the present invention are further described with specific embodiment below in conjunction with the accompanying drawings.
Shown in Fig. 1 to 4, a kind of gas extraction system with accelerating tube and silencing function is made up of accelerating tube 2 and deafener 3, plus
The connection electromotor of fast pipe 2 gas outlet, 2 middle part perforate of accelerating tube connect deafener 3.The accelerating tube 2 is the little shape broad in the middle in two
Shape, the accelerating tube start internal diameter from head inlet and gradually increase, and afterbody internal diameter is gradually reduced until sealing, the accelerating tube 2
Head inlet on the joint 1 matched with electromotor gas outlet size is installed, the joint 1 is fixed on the entrance of accelerating tube
Go up or be movably arranged on the entrance of accelerating tube, such joint 1 can need twisted along accelerating tube to the left or to the right according to accessing, institute
The middle part for stating accelerating tube 2 is provided with and the perforate connected inside accelerating tube 2, and the import of the deafener is connected with the perforate.
The accelerating tube is by being formed by connecting along the symmetrically arranged two half of bodys of centrage.The half of body of described two
It is welded by scrap (bridge) 6, the joint face of the scrap (bridge) 6 is plane.
The accelerating tube includes accelerating sections, flat segments, back-flexing section and breeze way from head to afterbody successively.It is described to add
Fast section caliber increases from import successively to outlet, and the bending direction of the back-flexing section and accelerating sections is conversely, the breeze way
For pyramid type.The shape of the accelerating tube central axis from head inlet to afterbody successively include radius for R1 the first circular arc,
Distance is the first straight line of L1, radius is second circular arc of R2, radius is the three-arc of R3, radius for R4 the 4th circular arc,
Apart from the 6th circular arc that the second straight line for L2, radius are the 5th circular arc of R5, radius is R6, the 3rd straight line that distance is L3；
It is described accelerate tube inlet caliber be Φ 1, the caliber in the first circular arc and first straight line junction be Φ 2, in three-arc and
Caliber at 4th circular sliding slopes be Φ 3, caliber at the 4th circular arc and the 5th circular sliding slopes be Φ 4, in the 5th circular arc and
Caliber at 6th circular sliding slopes is Φ 5, the caliber in the 6th circular arc and second straight line junction is Φ 6；First circular arc,
The circular arc direction of the second circular arc, three-arc and the 4th circular arc is consistent, the circular arc direction phase of the 5th circular arc and the 4th circular arc
Instead, the 6th circular arc is consistent with the circular arc direction of the 5th circular arc；The accelerating tube is in the first circular arc, the second circular arc, the 3rd circle
Arc and the 4th circular arc sector constitute accelerating sections, constitute flat segments in second straight line region, in the 6th circular arc and the 5th circular arc sector
Constitute back-flexing section, breeze way is constituted in the 3rd linearity region.The R1 is more than 45mm, the R2>R3>R4>R5, R5<R6,
The Φ 1<Φ2<Φ3<Φ 4, Φ 4>Φ5>Φ 6, the taper of the breeze way is 1:2.7.
The entrance of the deafener 3 is welded with 2 tapping of accelerating tube, and described 3 abdominal part of deafener passes through the first gripper shoe 4
With 3 shell reinforcement of weld of accelerating tube.
The second gripper shoe 5 is welded with 2 shell of the accelerating tube, the accelerating tube 2 is installed and consolidated by the second gripper shoe 5
Determine on body.
Workflow：The acceleration tube head has the joint 1 matched with engine exhaust port, and joint 1 is arranged with electromotor
QI KOU is tightly connected, and electromotor expellant gas flow into horn-like diverging after entering accelerating tube, rise and accelerate mobilization.Afterbody
Internal diameter is gradually reduced, and making electromotor be drained into the gas in accelerating tube has individual relief area, plays burning completely, deceleration and cooling
Effect.Perforate in the middle part of accelerating tube, the entrance welded seal with deafener, and deafener abdominal part pass through outside gripper shoe and accelerating tube
Shell reinforcement of weld.Gas after buffered enters deafener, then discharges from deafener air vent.
Claims (10)
1. a kind of gas extraction system with accelerating tube and silencing function, it is characterised in that：Including accelerating tube and deafener, the acceleration
Manage as the little shape broad in the middle in two, the accelerating tube starts internal diameter from head inlet and gradually increases, and afterbody internal diameter is gradually reduced
Until sealing, is provided with the joint matched with electromotor gas outlet size, the joint on the head inlet of the accelerating tube
Be fixed on the entrance of accelerating tube or be movably arranged on the entrance of accelerating tube, be provided with the middle part of the accelerating tube with accelerating tube
The perforate of portion's connection, the import of the deafener are connected with the perforate.
2. the gas extraction system with accelerating tube and silencing function according to claim 1, is characterized in that：The accelerating tube is by edge
The symmetrically arranged two half of bodys of centrage are formed by connecting.
3. the gas extraction system with accelerating tube and silencing function according to claim 2, is characterized in that：Described two are half of
Body is welded by scrap (bridge), and the joint face of the scrap (bridge) is plane.
4. the gas extraction system with accelerating tube and silencing function according to one of claims 1 to 3, is characterized in that：It is described to add
Fast pipe includes accelerating sections, flat segments, back-flexing section and breeze way from head to afterbody successively.
5. the gas extraction system with accelerating tube and silencing function according to claim 4, is characterized in that：The accelerating sections caliber
Increase from import successively to outlet, the bending direction of the back-flexing section and accelerating sections is conversely, the breeze way is pyramid type.
6. the gas extraction system with accelerating tube and silencing function according to claim 5, is characterized in that：The acceleration tube hub
The shape of axis includes radius from head inlet to afterbody successively for first circular arc of R1, apart from first straight line, the radius for being L1
For second circular arc of R2, radius be the three-arc of R3, radius be the 4th circular arc of R4, distance for L2 second straight line, radius
For the 5th circular arc of R5, the 6th circular arc that radius is R6, the 3rd straight line that distance is L3；
It is described accelerate tube inlet caliber be φ 1, the first circular arc and first straight line junction caliber be φ 2, the 3rd circle
Caliber at arc and the 4th circular sliding slopes be φ 3, caliber at the 4th circular arc and the 5th circular sliding slopes be φ 4, in the 5th circle
Caliber at arc and the 6th circular sliding slopes is φ 5, the caliber in the 6th circular arc and second straight line junction is φ 6；
The circular arc direction of first circular arc, the second circular arc, three-arc and the 4th circular arc is consistent, the 5th circular arc and the 4th
The circular arc of circular arc is in opposite direction, and the 6th circular arc is consistent with the circular arc direction of the 5th circular arc；
The accelerating tube is in the first circular arc, the second circular arc, three-arc and the 4th circular arc sector composition accelerating sections, in second straight line
Region constitutes flat segments, constitutes back-flexing section, constitutes buffering in the 3rd linearity region in the 6th circular arc and the 5th circular arc sector
Section.
7. the gas extraction system with accelerating tube and silencing function according to claim 6, is characterized in that：The R1 is more than
45mm, the R2>R3>R4>R5, R5<R6, the φ 1<φ2<φ3<φ 4, φ 4>φ5>φ 6, the taper of breeze way is 1:
2.25～1:2.85.
8. the gas extraction system with accelerating tube and silencing function according to claim 7, is characterized in that：The cone of the breeze way
Spend for 1:2.7.
9. the gas extraction system with accelerating tube and silencing function according to claim 3, is characterized in that：The deafener enters
Mouth and the welding of accelerating tube tapping, described deafener abdominal part is by the first gripper shoe (4) and acceleration pipe shell reinforcement of weld.
10. the gas extraction system with accelerating tube and silencing function according to claim 9, is characterized in that：Outside the accelerating tube
The second gripper shoe (5) is welded with shell, the accelerating tube is mounted and fixed on body by the second gripper shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200744.3A CN106523116B (en) | 2016-12-22 | 2016-12-22 | Exhaust system with accelerating tube and silencing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200744.3A CN106523116B (en) | 2016-12-22 | 2016-12-22 | Exhaust system with accelerating tube and silencing function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106523116A true CN106523116A (en) | 2017-03-22 |
| CN106523116B CN106523116B (en) | 2022-11-08 |
Family
ID=58337389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611200744.3A Active CN106523116B (en) | 2016-12-22 | 2016-12-22 | Exhaust system with accelerating tube and silencing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106523116B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4449608A (en) * | 1980-10-20 | 1984-05-22 | Kawasaki Jukogyo Kabushiki Kaisha | Exhaust device for 2-cycle engine |
| JP2001073759A (en) * | 1999-08-31 | 2001-03-21 | Suzuki Motor Corp | Motorcycle |
| US6901753B1 (en) * | 2004-01-28 | 2005-06-07 | Michael Roydon Puzey | Engine expansion pipe |
| CN201884109U (en) * | 2010-12-12 | 2011-06-29 | 昆明理工大学 | Single-stage muffling exhaust pipe |
| CN206267939U (en) * | 2016-12-22 | 2017-06-20 | 湖南山河科技股份有限公司 | A kind of gas extraction system with accelerating tube and silencing function |
-
2016
- 2016-12-22 CN CN201611200744.3A patent/CN106523116B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4449608A (en) * | 1980-10-20 | 1984-05-22 | Kawasaki Jukogyo Kabushiki Kaisha | Exhaust device for 2-cycle engine |
| JP2001073759A (en) * | 1999-08-31 | 2001-03-21 | Suzuki Motor Corp | Motorcycle |
| US6901753B1 (en) * | 2004-01-28 | 2005-06-07 | Michael Roydon Puzey | Engine expansion pipe |
| CN201884109U (en) * | 2010-12-12 | 2011-06-29 | 昆明理工大学 | Single-stage muffling exhaust pipe |
| CN206267939U (en) * | 2016-12-22 | 2017-06-20 | 湖南山河科技股份有限公司 | A kind of gas extraction system with accelerating tube and silencing function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106523116B (en) | 2022-11-08 |
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Address after: 412002 no.768 Zhixing street, Lusong District, Zhuzhou City, Hunan Province Patentee after: Shanhe Xinghang Industrial Co.,Ltd. Address before: 412,000 Plot on the north side of the Second Dress Road, Dongjiayong Science Park, Lusong District, Zhuzhou City, Hunan Province Patentee before: HUNAN SUNWARD SCIENCE & TECHNOLOGY Co.,Ltd. |