CN106052789A - Diameter changing device for vehicle-mounted exhaust flowmeter - Google Patents
Diameter changing device for vehicle-mounted exhaust flowmeter Download PDFInfo
- Publication number
- CN106052789A CN106052789A CN201610524316.XA CN201610524316A CN106052789A CN 106052789 A CN106052789 A CN 106052789A CN 201610524316 A CN201610524316 A CN 201610524316A CN 106052789 A CN106052789 A CN 106052789A
- Authority
- CN
- China
- Prior art keywords
- meter
- exhaust flow
- cylindrical tube
- changing device
- vehicle
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000003032 molecular docking Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 6
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 210000001503 joint Anatomy 0.000 abstract 3
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/18—Supports or connecting means for meters
- G01F15/185—Connecting means, e.g. bypass conduits
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a diameter changing device for a vehicle-mounted exhaust flowmeter. The diameter changing device comprises an exhaust flowmeter butt joint cylinder body of which one end is fit and butted with the exhaust flowmeter, and the length of the exhaust flowmeter butt joint cylinder body being twice the inner diameter of the flowmeter; a diameter conversion cylindrical trapezoidal tube body comprising a large-bore end and a small-bore end, the large-bore end being fit and butted with the other end of the exhaust flowmeter butt joint cylinder body; an elbow round tube body of which one end is connected with the small-bore end of the diameter conversion cylindrical trapezoidal tube body; and an exhaust pipe replacement cylinder body of which one end is connected with the other end of the elbow round tube body, and the other end of the exhaust pipe replacement cylinder body being directly connected with a muffler. The diameter changing device is excellent in leakproofness of connection with the exhaust flowmeter, enhanced in measurement accuracy, improved in durability, stable in reliability and reduced in cost. Meanwhile, the diameter changing device has the characteristics of being light, portable and mobile.
Description
Technical field
The present invention relates to engine art, particularly to the diameter changing device of a kind of vehicle-mounted exhaust flow-meter.
Background technology
Current PE MS entire vehicle discharging analysis instrument exhaust flow-meter is connected, by high temperature resistant row with 8 meters long bus exhaustors
Gas is hose connection.SEMTECH-EFM3 flowtube specification is to return from U.S.'s buying fixing coupling with high temperature resistant exhaust hose, public
Hand over vehicle exhaust pipe bore 60mm and high temperature resistant exhaust hose interior diameter 102mm length 610mm.
Exhaustor bore and high temperature resistant exhaust hose bore differ greatly, poor sealing after connection.High temperature resistant exhaust hose
Material is affected by high temperature and high intensity bending is easily broken off or causes car load exhaust back pressure to raise, thus affects exhaust flow-meter
Measurement accuracy and the performance on electromotor produce and affect.
The information being disclosed in this background section is merely intended to increase the understanding of the general background to the present invention, and should not
When being considered to recognize or imply in any form this information structure prior art well known to persons skilled in the art.
Summary of the invention
It is an object of the invention to provide the diameter changing device of a kind of simple and reasonable vehicle-mounted exhaust flow-meter, this is vehicle-mounted
The diameter changing device of exhaust flow-meter is connected with exhaust flow-meter that seal is superior, measurement accuracy promotes, durability improves, reliable
Property stable, reduce cost.It is provided simultaneously with the characteristics such as light and handy, portable, mobile.
For achieving the above object, the invention provides the diameter changing device of a kind of vehicle-mounted exhaust flow-meter, this vehicle-mounted row air-flow
The diameter changing device of gauge includes: exhaust flow-meter docking cylindrical tube, and its one end is docked with exhaust flow-meter adaptation, this exhaust stream
Gauge docking cylindrical tube offers multiple tracks around the anti-skidding seal groove of cylindrical tube with the periphery circumference of the butt end of exhaust flow-meter；
The length of described exhaust flow-meter docking cylindrical tube is the twice of effusion meter internal diameter；The bore conversion trapezoidal body of cylinder, its bag
Including: heavy caliber end and small-caliber end, described heavy caliber end docks the other end adaptation docking of cylindrical tube with exhaust flow-meter；Curved
Pipe circle body, its one end is connected with the small-caliber end of the described bore conversion trapezoidal body of cylinder；And exhaustor replacement circle
Column jecket body, its one end is connected with the other end of described bend pipe circle body, this exhaustor replace cylindrical tube the other end with
Acoustic filter is directly connected to.
Preferably, in technique scheme, being the twice be arrangeding in parallel around the anti-skidding seal groove of cylindrical tube, groove depth is
0.6mm groove width is 0.7mm.
Preferably, in technique scheme, bend pipe circle body is right-angle elbow pipe circle body.
Preferably, in technique scheme, exhaust flow-meter docks cylindrical tube, bore changes the trapezoidal body of cylinder, directly
Angle bend pipe circle body and exhaustor are replaced cylindrical tube and are welded and fixed successively, and material all selects model 304 stainless steel material.
Preferably, in technique scheme, the length of cylindrical tube replaced by exhaustor is 1/4th of fundamental frequency wavelength
Radix times.
Compared with prior art, there is advantages that the diameter changing device of this vehicle-mounted exhaust flow-meter passes through
Aperture transform ensures to seal, and is connected with exhaust flow-meter that seal is superior, measurement accuracy promotes, durability improves, reliably
Property stable, reduce cost.It is provided simultaneously with the characteristics such as light and handy, portable, mobile.
Accompanying drawing explanation
Fig. 1 is the structural representation of the diameter changing device of the vehicle-mounted exhaust flow-meter of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Scope of protecting is not limited by detailed description of the invention.
Explicitly indicating that unless otherwise other, otherwise in entire disclosure and claims, term " includes " or it becomes
Change and such as " comprising " or " including " etc. will be understood to comprise stated element or ingredient, and do not get rid of other yuan
Part or other ingredient.
As it is shown in figure 1, the concrete structure of the diameter changing device according to the vehicle-mounted exhaust flow-meter of the specific embodiment of the invention
Including: exhaust flow-meter docking cylindrical tube 1, the bore conversion trapezoidal body of cylinder 2, right-angle elbow pipe circle body 3 and exhaustor
Replace cylindrical tube 4.Wherein, exhaust flow-meter docking cylindrical tube 1 docks with exhaust flow-meter；Bore conversion cylinder laddertron
Body 2 is transformed to heavy caliber by small-bore；Right-angle elbow pipe circle body 3 is rotatably adjustable, finds suitable installation exhaust flow-meter
Orientation, the corner of caliber and expansion foundation structure compresses are to the shortest；Exhaustor is replaced cylindrical tube 4 and is replaced automobile exhaust pipe and disappear
Sound device is directly connected to, length based on first-harmonic noise principle design exhaustor, can reduce resonance and reduce noise.This vehicle-mounted row air-flow
The diameter changing device 'go'gage conversion of gauge ensures to seal, and is connected with exhaust flow-meter that seal is superior, measurement accuracy carries
Rise, durability improves, reliability is stable, reduce cost.It is provided simultaneously with the characteristics such as light and handy, portable, mobile.
Specifically, one end of exhaust flow-meter docking cylindrical tube 1 is docked with exhaust flow-meter adaptation；The other end and mouth
The heavy caliber end of the footpath conversion trapezoidal body of cylinder 2 is welded and fixed.Exhaust flow-meter docking cylindrical tube 1 is right with exhaust flow-meter
The periphery circumference connecing end offers multiple tracks around the anti-skidding seal groove of cylindrical tube 5.Preferably, around the anti-skidding seal groove of cylindrical tube 5 it is
The twice be arrangeding in parallel, groove depth be 0.6mm groove width be 0.7mm.Exhaust flow-meter docking cylindrical tube 1 docks with exhaust flow-meter
After, body and effusion meter outer surface use high temperature resistant exhaust hose entangle pound with clip tightlier carry out airtight, three identical groove depths
0.6mm groove width 0.7mm is around cylindrical tube, and clip is pounded tight anti-skidding seal groove surface and played the effect of airtight anticreep, it is preferred that aerofluxus
The length of effusion meter docking cylindrical tube 1 is the twice of effusion meter internal diameter, plays the effect of regime flow.This device is according to 8 meters
Bus exhaust system structure designs, and the distance between exhaustor to effusion meter is effectively compressed to laws and regulations requirement.
After reducing, body is connected with exhaust flow-meter, anti-slip tank can airtight anticreep, and tube length is equal to exhaust flow-meter twice internal diameter
Be suitable to current stabilization.
The bore conversion trapezoidal body of cylinder 2 includes: heavy caliber end and small-caliber end, wherein, and heavy caliber end and extraction flow
The other end adaptation of meter docking cylindrical tube 1 is welded and fixed, and small-caliber end is connected with right-angle elbow pipe circle body 3, thus by little
Aperture transform is heavy caliber.
The small-caliber end of one end of right-angle elbow pipe circle body 3 and the bore conversion trapezoidal body of cylinder 2 is connected, the other end and
Exhaustor is replaced cylindrical tube 4 and is connected.Right-angle elbow pipe circle body 3 can adjust in 360 ° of rotations, finds and properly installs extraction flow
The orientation of meter so that the corner of caliber and expansion foundation structure compresses are to the shortest.Caliber is designed according to car load exhaust system structure
Corner and expansion are shortened distance, and the more former high temperature resistant exhaust hose of roughness of material reduces, and can effectively reduce aerofluxus resistance
Power.
Exhaustor is replaced one end of cylindrical tube 4 and is connected with the other end of right-angle elbow pipe circle body 3, and the other end replaces vapour
Vehicle exhaust pipe is directly connected to acoustic filter, and the radix that the length of cylindrical tube 4 is 1/4th of fundamental frequency wavelength replaced by exhaustor
Times, length based on first-harmonic noise principle design exhaustor, can reduce resonance and reduce noise.
Preferably, exhaust flow-meter docking cylindrical tube 1, bore the conversion trapezoidal body of cylinder 2, right-angle elbow pipe circle body
3 and exhaustor replace cylindrical tube 4 be welded and fixed successively.Material selection industrial model 304 stainless steel material, welding method makes
Use pressure spot welding so that it is inside more smoothes out and do not corroded by water, acid and high temperature.
To sum up, the diameter changing device 'go'gage conversion of this vehicle-mounted exhaust flow-meter ensures to seal, with exhaust flow-meter even
Connect that seal is superior, measurement accuracy promotes, durability improves, reliability is stable, reduce cost.Be provided simultaneously with light and handy, portable,
The characteristics such as movement.
The aforementioned description to the specific illustrative embodiment of the present invention illustrates that and the purpose of illustration.These describe
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can much change
And change.The purpose selected exemplary embodiment and describe is to explain that the certain principles of the present invention and reality thereof should
With so that those skilled in the art be capable of and utilize the present invention various different exemplary and
Various different selections and change.The scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (5)
1. the diameter changing device of a vehicle-mounted exhaust flow-meter, it is characterised in that including:
Exhaust flow-meter docks cylindrical tube, and its one end is docked with exhaust flow-meter adaptation, this exhaust flow-meter docking cylindrical tube
Body offers multiple tracks around the anti-skidding seal groove of cylindrical tube with the periphery circumference of the butt end of exhaust flow-meter；Described exhaust flow-meter
The length of docking cylindrical tube is the twice of effusion meter internal diameter；
The bore conversion trapezoidal body of cylinder, comprising: heavy caliber end and small-caliber end, described heavy caliber end and exhaust flow-meter pair
Connect the other end adaptation docking of cylindrical tube；
Bend pipe circle body, its one end is connected with the small-caliber end of the described bore conversion trapezoidal body of cylinder；And
Cylindrical tube replaced by exhaustor, and its one end is connected with the other end of described bend pipe circle body, and circle replaced by this exhaustor
The other end of column jecket body is directly connected to acoustic filter.
The diameter changing device of vehicle-mounted exhaust flow-meter the most according to claim 1, it is characterised in that described anti-around cylindrical tube
Sliding seal groove is the twice be arrangeding in parallel, groove depth be 0.6mm groove width be 0.7mm.
The diameter changing device of vehicle-mounted exhaust flow-meter the most according to claim 1, it is characterised in that described bend pipe circle body
For right-angle elbow pipe circle body.
The diameter changing device of vehicle-mounted exhaust flow-meter the most according to claim 1, it is characterised in that described exhaust flow-meter pair
Connect cylindrical tube, the bore conversion trapezoidal body of cylinder, right-angle elbow pipe circle body and exhaustor to replace cylindrical tube and weld successively
Fixing, material all selects model 304 stainless steel material.
The diameter changing device of vehicle-mounted exhaust flow-meter the most according to claim 1, it is characterised in that circle replaced by described exhaustor
The length of column jecket body is the radix times of 1/4th of fundamental frequency wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610524316.XA CN106052789A (en) | 2016-06-30 | 2016-06-30 | Diameter changing device for vehicle-mounted exhaust flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610524316.XA CN106052789A (en) | 2016-06-30 | 2016-06-30 | Diameter changing device for vehicle-mounted exhaust flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106052789A true CN106052789A (en) | 2016-10-26 |
Family
ID=57202019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610524316.XA Pending CN106052789A (en) | 2016-06-30 | 2016-06-30 | Diameter changing device for vehicle-mounted exhaust flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106052789A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203445Y (en) * | 2008-04-15 | 2009-03-04 | 上海同圆环保科技有限公司 | Engine air inlet heat type gas mass flowmeter |
| CN101737122A (en) * | 2010-01-28 | 2010-06-16 | 任小平 | Exhaust muffler of high-power diesel engine |
| CN102606354A (en) * | 2012-03-23 | 2012-07-25 | 浙江峻和橡胶科技有限公司 | Turbo-charging exhaust pipe and manufacturing method of turbo-charging exhaust pipe |
| CN102652256A (en) * | 2009-12-17 | 2012-08-29 | 株式会社堀场制作所 | Exhaust gas sampling device |
| CN203271890U (en) * | 2013-05-10 | 2013-11-06 | 宁波市鄞州吉士汽配有限公司 | Automobile front exhaust pipe |
| CN203488792U (en) * | 2013-08-27 | 2014-03-19 | 青岛海信日立空调系统有限公司 | Silencing check valve and exhaust pipe with same |
| CN203626934U (en) * | 2013-10-26 | 2014-06-04 | 广西科技大学 | Novel exhaust system |
| CN203856558U (en) * | 2014-04-03 | 2014-10-01 | 郑州精益达汽车零部件有限公司 | Novel exhaust pipe |
| CN104747259A (en) * | 2014-07-23 | 2015-07-01 | 崔国锐 | Diameter-variable exhaust pipe |
| WO2016040543A1 (en) * | 2014-09-11 | 2016-03-17 | Faurecia Emissions Control Technologies, Usa, Llc | Exhaust tube and tuning tube assembly with whistle reduction feature |
| CN205719153U (en) * | 2016-06-30 | 2016-11-23 | 广西玉柴机器股份有限公司 | The diameter changing device of vehicle-mounted exhaust flow-meter |
-
2016
- 2016-06-30 CN CN201610524316.XA patent/CN106052789A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203445Y (en) * | 2008-04-15 | 2009-03-04 | 上海同圆环保科技有限公司 | Engine air inlet heat type gas mass flowmeter |
| CN102652256A (en) * | 2009-12-17 | 2012-08-29 | 株式会社堀场制作所 | Exhaust gas sampling device |
| CN101737122A (en) * | 2010-01-28 | 2010-06-16 | 任小平 | Exhaust muffler of high-power diesel engine |
| CN102606354A (en) * | 2012-03-23 | 2012-07-25 | 浙江峻和橡胶科技有限公司 | Turbo-charging exhaust pipe and manufacturing method of turbo-charging exhaust pipe |
| CN203271890U (en) * | 2013-05-10 | 2013-11-06 | 宁波市鄞州吉士汽配有限公司 | Automobile front exhaust pipe |
| CN203488792U (en) * | 2013-08-27 | 2014-03-19 | 青岛海信日立空调系统有限公司 | Silencing check valve and exhaust pipe with same |
| CN203626934U (en) * | 2013-10-26 | 2014-06-04 | 广西科技大学 | Novel exhaust system |
| CN203856558U (en) * | 2014-04-03 | 2014-10-01 | 郑州精益达汽车零部件有限公司 | Novel exhaust pipe |
| CN104747259A (en) * | 2014-07-23 | 2015-07-01 | 崔国锐 | Diameter-variable exhaust pipe |
| WO2016040543A1 (en) * | 2014-09-11 | 2016-03-17 | Faurecia Emissions Control Technologies, Usa, Llc | Exhaust tube and tuning tube assembly with whistle reduction feature |
| CN205719153U (en) * | 2016-06-30 | 2016-11-23 | 广西玉柴机器股份有限公司 | The diameter changing device of vehicle-mounted exhaust flow-meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2420805A3 (en) | Straight tube ultrasonic flow meter | |
| US8181536B2 (en) | Ultrasonic Flow Meter including a transducer having conical face | |
| CN103567609B (en) | For the formation of the method for welded seal | |
| KR20020021560A (en) | Multi-path ultrasonic flow rate measuring method | |
| RU2612727C2 (en) | Ultrasonic signal coupler | |
| JP2014006260A (en) | Temperature measuring device for measuring temperature of flowing medium | |
| CN110383013A (en) | Ultrasonic flowmeter | |
| CN205719153U (en) | The diameter changing device of vehicle-mounted exhaust flow-meter | |
| CN105043473B (en) | Ultrasonic flowmeter with grafting positioning | |
| CN103323064A (en) | Ultrasonic multi-point reflection flow meter | |
| CN106052789A (en) | Diameter changing device for vehicle-mounted exhaust flowmeter | |
| CN109682432A (en) | A kind of ultrasonic measurement steam-flow meter | |
| JP2015081865A (en) | Fluid type discrimination device and fluid type discrimination method | |
| CN202382901U (en) | High-voltage warm-pressing pipeline medium measurement device | |
| CN102087129A (en) | Apparatus and method for determining flow characteristics of a fluid in a conduit | |
| CN203274820U (en) | Ultrasonic multiple-point reflection flow meter | |
| ATE477406T1 (en) | FLEXIBLE LINE ELEMENT FOR AN EXHAUST SYSTEM | |
| CN207610933U (en) | A kind of water-filling exhaust apparatus of accumulation of energy unit Horizontal pressure gas tank | |
| CN205781678U (en) | For connecting the transition segment of thin-walled liner steel pipe | |
| CN205808595U (en) | A kind of Novel household ultrasonic calorimeter | |
| CN204188238U (en) | High voltage type liquid level gauge | |
| CN214471325U (en) | Noise measuring device | |
| CN219084928U (en) | Pipeline weld defect detection device | |
| CN208311729U (en) | A kind of adjustable flared type transit joint of lightweight | |
| CN205534644U (en) | Accurate stainless steel straight pipe of thick wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |
|
| RJ01 | Rejection of invention patent application after publication |