CN105781680A - Leaf spring type control valve of exhaust system - Google Patents
Leaf spring type control valve of exhaust system Download PDFInfo
- Publication number
- CN105781680A CN105781680A CN201610327311.8A CN201610327311A CN105781680A CN 105781680 A CN105781680 A CN 105781680A CN 201610327311 A CN201610327311 A CN 201610327311A CN 105781680 A CN105781680 A CN 105781680A
- Authority
- CN
- China
- Prior art keywords
- leaf spring
- control valve
- extraction system
- gas extraction
- valve
- 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- Withdrawn
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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
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
- F01N1/166—Silencing apparatus characterised by method of silencing by using movable parts for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
-
- 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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/14—Exhaust treating devices having provisions not otherwise provided for for modifying or adapting flow area or back-pressure
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
Abstract
A leaf spring type control valve of an exhaust system comprises a valve seat, a valve block mounted on the valve seat, and a baffle for limiting excessive deformation of the valve block. The valve seat comprises an exhaust channel and a plurality of exhaust holes communicating with the exhaust channel. The valve block comprises a plurality of leaf springs covering the corresponding exhaust holes. The control valve is simple in structure. Design of the exhaust holes and the number of the leaf springs can be flexibly adjusted to meet different design requirements. In addition, the risk of breakage of the valve block can be reduced by means of the baffle, and the aim of convenient manufacturing and assembling operation is achieved. The multiple leaf springs in the control valve assist in reducing the material utilization quantity.
Description
Technical field
The present invention relates to the control valve of a kind of gas extraction system for motor vehicles, particularly relate to the control valve of a kind of leaf spring formula gas extraction system.
Background technology
Exhaust noise is one of main source of motor vehicles noise, and reducing exhaust noise is the main path reducing vehicle noise.When the electromotor (gasoline engine or diesel engine) of motor vehicles works, producing certain back pressure due to the exhaustor existed in gas extraction system, acoustic filter, exhaust gas filter etc., this back pressure generally changes with the rotation speed change of electromotor.Back pressure has a direct impact for the aspect such as power and moment of torsion of the noise of vehicle, electromotor, on the one hand, during engine speed height, back pressure is bigger, the noise produced in gas extraction system is less, and namely acoustic efficiency is fine, but owing to back pressure itself can consume certain power, so the power of electromotor and moment of torsion can be affected, and and then affect fuel efficiency；On the other hand, when engine speed is low, back pressure is less, situation is contrary, and the noise of the generation in gas extraction system is very big, and namely acoustic efficiency is poor, but the power of electromotor and moment of torsion are impacted less, and fuel efficiency is high.In common vehicle exhaust system, both the above situation is likely to occur.
Traditional gas extraction system controls valve and is mainly made up of flexible member and valve seat, valve gap etc., and its elastic element (such as spring) mainly has torsion spring type, compressed spring type etc..But, such control valve arrangement is complicated, and cost is high.
Summary of the invention
It is an object of the invention to provide the control valve of the leaf spring formula gas extraction system of a kind of simple in construction.
For achieving the above object, the present invention adopts the following technical scheme that the control valve of a kind of leaf spring formula gas extraction system, described control valve includes valve seat, be installed on described valve seat valve block and in order to limit the baffle plate of described valve block excessive deformation, wherein said valve seat includes exhaust passage and the some steam vents connected with described exhaust passage, and described valve block includes the some leaf springs covering on the steam vent of correspondence.
As further improved technical scheme of the present invention, when pressure at expulsion is lower than setting value, described leaf spring pushes down described steam vent.
As further improved technical scheme of the present invention, when pressure at expulsion is higher than setting value, described leaf spring is backed down with from described steam vent pressure release.
As further improved technical scheme of the present invention, described baffle plate is provided with the limiting plate corresponding to described leaf spring, and described limiting plate compresses described leaf spring to limit described leaf spring excessive deformation.
As further improved technical scheme of the present invention, one end of described leaf spring is fixed, and the other end is free end.
As further improved technical scheme of the present invention, described valve block is an entirety, and described valve block includes the first central part, and described leaf spring radially radiates from described first central part and extends out.
As further improved technical scheme of the present invention, described valve block includes the first fixed part between two leaf springs of arbitrary neighborhood, and described first fixed part is fixed on described valve seat.
As further improved technical scheme of the present invention, the shape of described baffle plate is roughly the same with the shape of described valve block, all in petal.
As further improved technical scheme of the present invention, described baffle plate is an entirety, and described baffle plate includes the second central part, and described limiting plate radially radiates from described second central part and extends out.
As further improved technical scheme of the present invention, the second central part of described baffle plate is flat, and described limiting plate slightly tilts laterally.
Compared to prior art, it is simple that the present invention controls valve arrangement.The design of steam vent and the quantity of leaf spring can adjust flexibly, to adapt to different designing requirements.It addition, can reduce, by arranging baffle plate, the risk that rupturing occurs in valve block, and meet manufacture, assembly manipulation purpose easily.Some leaf springs in the present invention are also helpful in reducing material usage.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view controlling valve of leaf spring formula gas extraction system of the present invention.
Fig. 2 is the schematic perspective view of valve seat in Fig. 1.
Fig. 3 is the schematic perspective view of Fig. 1 middle valve plate.
Fig. 4 is the schematic perspective view of baffle plate in Fig. 1.
Detailed description of the invention
Please joining shown in Fig. 1 to Fig. 4, present invention is disclosed the control valve 100 of a kind of leaf spring formula gas extraction system, it includes valve seat 1, the valve block 2 that is installed on described valve seat 1 and in order to limit the baffle plate 3 of described valve block 2 excessive deformation.
Please joining shown in Fig. 1, in illustrative embodiments of the present invention, substantially cylindrically, it includes exhaust passage 11 and is positioned at the blocking surface 12 of side, described exhaust passage 11 (in the embodiment shown in figure 2 for upside) described valve seat 1.Please joining shown in Fig. 2, described blocking surface 12 is provided with the some steam vents 121 connected with described exhaust passage 11 and in order to install the fixing hole 122 of described valve block 2 and baffle plate 3.The aperture of steam vent 121, quantity and distribution can require flexible design according to pressure release.
Please joining shown in Fig. 3, in illustrative embodiments of the present invention, described valve block 2 is an all-in-one-piece thin slice.Described valve block 2 adopts resistant to elevated temperatures leaf spring material, and thickness and the rigidity of valve block 2 are determined according to designing requirement, and its profile is petal.Described valve block 2 includes the first central part 21, radially radiates the some leaf springs 22 extended out and the first fixed part 23 between two leaf springs 22 of arbitrary neighborhood from described first central part 21.Each first fixed part 23 is provided with the first installing hole 231 of corresponding described fixing hole 122.
Please joining shown in Fig. 4, in illustrative embodiments of the present invention, described baffle plate 3 is also an all-in-one-piece thin slice, and it is roughly the same with the shape of valve block 2.Described baffle plate 3 includes the second central part 31, radially radiates the some limiting plates 32 extended out and the second fixed part 33 between two limiting plates 32 of arbitrary neighborhood from described second central part 31.Each second fixed part 33 is provided with the second installing hole 331 of corresponding described fixing hole 122 and the first installing hole 231.Baffle plate 3 is flat from middle part slightly to tilt laterally, and namely the second central part 31 of baffle plate 3 is in flat, and limiting plate 32 slightly tilts laterally.Tilting degree designs lift depending on valve block 2 and requires.The thickness of baffle plate 3 is determined according to the depth information of valve block 2, it is ensured that can play position-limiting action when leaf spring 22 is opened, it is to avoid by airflow influence aperture is excessive, leaf spring 22 is caused that connecting portion ruptures.
During assembling, it is possible to by the installation elements such as rivet or bolt 4 through described second installing hole the 331, first installing hole 231 and fixing hole 122, described valve block 2 is fixed on described valve seat 1 with baffle plate 3.Described leaf spring 22 covers on the steam vent 121 of correspondence.One end of described leaf spring 22 is fixed, and the other end is free end.The leaf spring 22 of described valve block 2 keeps fitting with described steam vent 121 in its natural state.When pressure at expulsion is lower than setting value, described leaf spring 22 pushes down described steam vent 121 makes valve block 2 be in closure state all the time, to play the effect of pressurize noise reduction；When pressure at expulsion is higher than setting value, described leaf spring 22 is backed down by aerofluxus with from the pressure release of described steam vent 121.Described limiting plate 32 compresses described leaf spring 22 to limit described leaf spring 22 excessive deformation.
Compared to prior art, control valve 100 simple in construction of the present invention.The quantity of the design of steam vent 121 and leaf spring 22 can adjust flexibly, to adapt to different designing requirements.It addition, can reduce, by arranging baffle plate 3, the risk that rupturing occurs in valve block 2, and meet manufacture, assembly manipulation purpose easily.Some leaf springs 22 in the present invention are also helpful in reducing material usage.
Additionally, above example be merely to illustrate the present invention and and unrestricted technical scheme described in the invention, understanding of this description should based on person of ordinary skill in the field, although this specification with reference to the above embodiments to present invention has been detailed description, but, it will be understood by those within the art that, the present invention still can be modified or equivalent replacement by person of ordinary skill in the field, and all are without departing from the technical scheme of the spirit and scope of the present invention and improvement thereof, all should be encompassed in scope of the presently claimed invention.
Claims (10)
1. the control valve of a leaf spring formula gas extraction system, it is characterized in that: described control valve includes valve seat, the valve block that is installed on described valve seat and in order to limit the baffle plate of described valve block excessive deformation, wherein said valve seat includes exhaust passage and the some steam vents connected with described exhaust passage, and described valve block includes the some leaf springs covering on the steam vent of correspondence.
2. the control valve of leaf spring formula gas extraction system as claimed in claim 1, it is characterised in that: when pressure at expulsion is lower than setting value, described leaf spring pushes down described steam vent.
3. the control valve of leaf spring formula gas extraction system as claimed in claim 1, it is characterised in that: when pressure at expulsion is higher than setting value, described leaf spring is backed down with from described steam vent pressure release.
4. the control valve of leaf spring formula gas extraction system as claimed in claim 1, it is characterised in that: described baffle plate is provided with the limiting plate corresponding to described leaf spring, and described limiting plate compresses described leaf spring to limit described leaf spring excessive deformation.
5. the control valve of leaf spring formula gas extraction system as claimed in claim 1, it is characterised in that: one end of described leaf spring is fixed, and the other end is free end.
6. the control valve of leaf spring formula gas extraction system as claimed in claim 4, it is characterised in that: described valve block is an entirety, and described valve block includes the first central part, and described leaf spring radially radiates from described first central part and extends out.
7. the control valve of leaf spring formula gas extraction system as claimed in claim 6, it is characterised in that: described valve block includes the first fixed part between two leaf springs of arbitrary neighborhood, and described first fixed part is fixed on described valve seat.
8. the control valve of leaf spring formula gas extraction system as claimed in claim 7, it is characterised in that: the shape of described baffle plate is roughly the same with the shape of described valve block, all in petal.
9. the control valve of leaf spring formula gas extraction system as claimed in claim 7, it is characterised in that: described baffle plate is an entirety, and described baffle plate includes the second central part, and described limiting plate radially radiates from described second central part and extends out.
10. the control valve of leaf spring formula gas extraction system as claimed in claim 9, it is characterised in that: the second central part of described baffle plate is flat, and described limiting plate slightly tilts laterally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610327311.8A CN105781680A (en) | 2016-05-17 | 2016-05-17 | Leaf spring type control valve of exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610327311.8A CN105781680A (en) | 2016-05-17 | 2016-05-17 | Leaf spring type control valve of exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105781680A true CN105781680A (en) | 2016-07-20 |
Family
ID=56379886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610327311.8A Withdrawn CN105781680A (en) | 2016-05-17 | 2016-05-17 | Leaf spring type control valve of exhaust system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105781680A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513173A (en) * | 2018-05-22 | 2019-11-29 | 佛吉亚排放控制技术美国有限公司 | Passive clack valve for vehicle exhaust systems |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11315711A (en) * | 1998-03-02 | 1999-11-16 | Honda Motor Co Ltd | Valve device for muffler |
| CN2446284Y (en) * | 2000-10-19 | 2001-09-05 | 尹星镇 | Ternary catalytic cleaner utilizing new valve for compensating air |
| CN1532387A (en) * | 2003-03-20 | 2004-09-29 | ���＼�й�ҵ��ʽ���� | Leaf valve or leaf valve assembly |
| JP2006009667A (en) * | 2004-06-24 | 2006-01-12 | Calsonic Kansei Corp | Exhaust pressure sensitive type control valve for silencer |
| KR20100137081A (en) * | 2009-06-22 | 2010-12-30 | 전성남 | Varible exhaust silence equipment |
| CN202001254U (en) * | 2011-01-21 | 2011-10-05 | 佛山市广顺电器有限公司 | Valve exhaust structure |
| CN205618223U (en) * | 2016-05-17 | 2016-10-05 | 上海天纳克排气系统有限公司 | Leaf spring formula exhaust system's control valve |
-
2016
- 2016-05-17 CN CN201610327311.8A patent/CN105781680A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11315711A (en) * | 1998-03-02 | 1999-11-16 | Honda Motor Co Ltd | Valve device for muffler |
| CN2446284Y (en) * | 2000-10-19 | 2001-09-05 | 尹星镇 | Ternary catalytic cleaner utilizing new valve for compensating air |
| CN1532387A (en) * | 2003-03-20 | 2004-09-29 | ���＼�й�ҵ��ʽ���� | Leaf valve or leaf valve assembly |
| JP2006009667A (en) * | 2004-06-24 | 2006-01-12 | Calsonic Kansei Corp | Exhaust pressure sensitive type control valve for silencer |
| KR20100137081A (en) * | 2009-06-22 | 2010-12-30 | 전성남 | Varible exhaust silence equipment |
| CN202001254U (en) * | 2011-01-21 | 2011-10-05 | 佛山市广顺电器有限公司 | Valve exhaust structure |
| CN205618223U (en) * | 2016-05-17 | 2016-10-05 | 上海天纳克排气系统有限公司 | Leaf spring formula exhaust system's control valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513173A (en) * | 2018-05-22 | 2019-11-29 | 佛吉亚排放控制技术美国有限公司 | Passive clack valve for vehicle exhaust systems |
| US11149602B2 (en) | 2018-05-22 | 2021-10-19 | Faurecia Emissions Control Technologies, Usa, Llc | Passive flap valve for vehicle exhaust system |
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| Date | Code | Title | Description |
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| C06 | 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160720 |