CN202768888U - Constant-pressure butterfly valve combined with cylinder - Google Patents
Constant-pressure butterfly valve combined with cylinder Download PDFInfo
- Publication number
- CN202768888U CN202768888U CN 201220500755 CN201220500755U CN202768888U CN 202768888 U CN202768888 U CN 202768888U CN 201220500755 CN201220500755 CN 201220500755 CN 201220500755 U CN201220500755 U CN 201220500755U CN 202768888 U CN202768888 U CN 202768888U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- valve
- rocker arm
- piston
- butterfly 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.)
- Expired - Fee Related
Links
Landscapes
- Valve Device For Special Equipments (AREA)
Abstract
The utility model discloses a constant-pressure butterfly valve combined with a cylinder, and belongs to exhaust brake buttery valves used for an automobile exhaust brake system. The constant-pressure butterfly valve combined with a cylinder comprises a valve body, a valve plate, a rocker arm component, a support component and a cylinder component, wherein the valve body is connected with the support component, the valve plate is connected with the rocker arm component, and the valve body and the valve plate are eccentric relative to a rotation center of the rocker arm component. Besides, a reset spring, a first-stage piston, a second-stage piston, a pressure regulating spring and a push rod are arranged in the cylinder component. A torsion bar spring of a pressure regulating control mechanism of the butterfly valve is moved out of a high-temperature working area of a conventional butterfly valve and integrated into the cylinder, so that the defect of high-temperature attenuation of materials is avoided completely and the structure is suitable for the exhaust brake butterfly valves.
Description
Technical field
The utility model relates to a kind of parts for the automobile exhaust braking system, relates in particular to a kind of for the Composite cylinder formula constant voltage butterfly valve on the automobile exhaust braking system.
Background technique
The exhaust brake butterfly valve is the part of automobile exhaust braking system, and it generally is installed on the outlet pipe of automobile, and effect is the braking moment that improves motor car engine.Its structure mainly is made of valve body, valve block, rocker arm assembly, bracket component and cylinder assembly, because the torsion bar spring of butterfly valve is operated in the automobile exhaust pipe, operating temperature is about 600 degrees centigrade, and the natural gas vehicle temperature is higher can be arrived about 750 degrees centigrade.Under such ambient temperature, heat fade will obviously occur in metallic material, and torsion bar easily fractures and deforms, and has affected greatly the working life of butterfly valve.
Designer of the present utility model has developed the constant voltage butterfly valve of Composite cylinder control of the present utility model under this background.The Regulation Control mechanism of butterfly valve is shifted out from the hot operation zone of traditional butterfly valve, be integrated in the outside cylinder, the applied compression spring is realized the adjusting of engine back pressure value.The operating ambient temperature of the key component spring of this product has dropped to below 150 degrees centigrade by 600～750 degrees centigrade like this, has avoided the defective of material at high temperature decay fully.
The model utility content
The purpose of this utility model is to provide a kind of Composite cylinder formula constant voltage butterfly valve, and this butterfly valve has been avoided the heat fade of pressure adjusting spring, long service life, and using effect is good.
The technical scheme in the invention for solving the technical problem is: Composite cylinder formula constant voltage butterfly valve, comprise valve body, valve block, rocker arm assembly, bracket component and cylinder assembly, described valve body links to each other with bracket component, described valve block links to each other with rocker arm assembly, and valve body and valve block exist eccentric with respect to the gyration center of rocker arm assembly; Be provided with return spring, first stage piston, second piston, pressure adjusting spring, push rod in the described cylinder assembly.
Described rocker arm assembly links to each other with described push rod by yoke, and push rod links to each other with described second piston, is provided with described pressure adjusting spring in the second piston, and second piston is embedded in the described first stage piston, and described return spring is nested with on described first stage piston.
Be equipped with twice the first guide ring on the described first stage piston, be equipped with twice the second guide ring on the described second piston.
The utility model compared with prior art has following outstanding beneficial effect:
1, long service life.Valve body, valve block have certain offset with respect to the gyration center of rocker arm assembly because eccentric existence, gas pressure on valve block the time valve block can drive rocker arm assembly and reverse certain angle.The adjusting of Composite cylinder formula constant voltage butterfly valve engine back pressure value does not rely on the torsional deflection of torsion bar spring and finishes, but finishes the adjusting of engine back pressure value by the pressure adjusting spring in the second piston in the rocker arm assembly promotion cylinder assembly.The Regulation Control mechanism of butterfly valve is shifted out from the hot operation zone of traditional butterfly valve, be integrated in the outside cylinder, the applied compression spring is realized the adjusting of engine back pressure value.The operating ambient temperature of key component spring of the present utility model has like this dropped to below 150 degrees centigrade by 600～750 degrees centigrade, has avoided the defective of material at high temperature decay fully, has greatly prolonged the working life of butterfly valve.
2, using effect is good.Be equipped with twice the first guide ring at first stage piston, be equipped with twice the second guide ring, the alignment when having guaranteed cylinder operation, reliable performance at second piston.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1 valve body, 2 valve blocks, 3 yokes, 4 push rods, 5 return springs, 6 second pistons, 7 pressure adjusting springs, 8 first stage pistons, 9 first guide rings, 10 second guide rings, 11 cylinder assemblies, 12 bracket components, 13 rocker arm assemblies.
Embodiment
The utility model will be further described below in conjunction with specification drawings and specific embodiments:
As shown in Figure 1, Composite cylinder formula constant voltage butterfly valve, comprise valve body 1, valve block 2, rocker arm assembly 13, bracket component 12 and cylinder assembly 11, described valve body 1 links to each other with bracket component 12, described valve block 2 links to each other with rocker arm assembly 13, and valve body 1 and valve block 2 exist eccentric with respect to the gyration center of rocker arm assembly 13; Be provided with return spring 5, first stage piston 8, second piston 6, pressure adjusting spring 7, push rod 4 in the described cylinder assembly 11.
Described rocker arm assembly 13 links to each other with described push rod 4 by yoke 3, push rod 4 links to each other with described second piston 6, be provided with described pressure adjusting spring 7 in the second piston 6, second piston 6 is embedded in the described first stage piston 8, and described return spring 5 is nested with on described first stage piston 8.
Alignment when guaranteeing cylinder operation is equipped with twice the first guide ring 9 on the described first stage piston 8, be equipped with twice the second guide ring 10 on the described second piston 6.
Working principle of the present utility model is:
When exhaust brake, cylinder assembly 11 is inflated, and promotes first stage piston 8, and first stage piston 8 drives second pistons 6 compression retracteding position springs 5, drives push rod 4 and yoke 3 promotion rocker arm assemblies 13, thereby is with moving valve plate 2 to close, and valve block 2 is in heeling condition in valve body 1.For preventing that motor from suppressing extremely, when valve block 2 is closed and valve body 1 still have certain gap, because of the existence in gap, so motor has certain back pressure value, it is 270～360 kPas that the back pressure value of Weihe River bavin motor requires.When back pressure is worth when too high, because valve body 1, valve block 2 have certain off-centre with respect to the gyration center of rocker arm assembly 13, air pressure in the outlet pipe can promote valve block 2 has certain deflection with respect to the gyration center of rocker arm assembly 13, and valve block 2 drives rocker arm assemblies 13 and promotes the adjusting that pressure adjusting spring 7 in the push rods 4 compression second pistons 6 is finished the back pressure value.
When exhaust brake is removed, cylinder assembly 11 venting, at effect next stage piston 8 drive second pistons 6 returns of return spring 5, push rod 4 also drives rocker arm assembly 13 valve blocks 2 returns simultaneously, and valve block 2 is horizontal.
The above, principles more of the present utility model just explain through diagrams, this specification be not be the utility model to be confined to shown in described concrete structure and the Applicable scope, therefore every corresponding modify that might be utilized and equivalent all belong to the claim that the utility model is applied for.
Except the described technical characteristics of specification, all the other technical characteristicss are those skilled in the art's known technology.
Claims (3)
1. Composite cylinder formula constant voltage butterfly valve, comprise valve body, valve block, rocker arm assembly, bracket component and cylinder assembly, it is characterized in that, described valve body links to each other with bracket component, described valve block links to each other with rocker arm assembly, and valve body and valve block exist eccentric with respect to the gyration center of rocker arm assembly; Be provided with return spring, first stage piston, second piston, pressure adjusting spring, push rod in the described cylinder assembly.
2. Composite cylinder formula constant voltage butterfly valve according to claim 1, it is characterized in that, described rocker arm assembly links to each other with described push rod by yoke, push rod links to each other with described second piston, be provided with described pressure adjusting spring in the second piston, second piston is embedded in the described first stage piston, and described return spring is nested with on described first stage piston.
3. Composite cylinder formula constant voltage butterfly valve according to claim 2 is characterized in that, is equipped with twice the first guide ring on the described first stage piston, is equipped with twice the second guide ring on the described second piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220500755 CN202768888U (en) | 2012-09-26 | 2012-09-26 | Constant-pressure butterfly valve combined with cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220500755 CN202768888U (en) | 2012-09-26 | 2012-09-26 | Constant-pressure butterfly valve combined with cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768888U true CN202768888U (en) | 2013-03-06 |
Family
ID=47775463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220500755 Expired - Fee Related CN202768888U (en) | 2012-09-26 | 2012-09-26 | Constant-pressure butterfly valve combined with cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853092A (en) * | 2012-09-26 | 2013-01-02 | 济南百惠汽车零部件有限责任公司 | Composite air cylinder type constant-pressure butterfly-shaped valve |
-
2012
- 2012-09-26 CN CN 201220500755 patent/CN202768888U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853092A (en) * | 2012-09-26 | 2013-01-02 | 济南百惠汽车零部件有限责任公司 | Composite air cylinder type constant-pressure butterfly-shaped valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102588030B (en) | The auxiliary valve driving mechanism of electromotor | |
| WO2018223798A1 (en) | Dual-camshaft switch fulcrum-type variable mode valve driving system | |
| WO2018223804A1 (en) | Valve actuation system with variable modes | |
| WO2018223803A1 (en) | Compact multi-mode valve driving system | |
| CN203097985U (en) | Engine braking device with special cam for braking single valve | |
| CN103688028A (en) | Valve actuation mechanism and automotive vehicle comprising same valve actuation mechanism | |
| CN104975898A (en) | Integrated rocker arm used for achieving engine braking | |
| CN202140127U (en) | Driving mechanism of engine braking device | |
| CN204386688U (en) | The integrated rocker arm brake apparatus of mechanically joined motor reset is risen with valve | |
| CN103835781A (en) | Combined type engine brake device | |
| CN104481628A (en) | Mechanical connection type engine integration rocker arm brake device with valve lift reset function | |
| CN105507974A (en) | Auxiliary valve actuating mechanism of engine | |
| CN202768888U (en) | Constant-pressure butterfly valve combined with cylinder | |
| CN108049931A (en) | A kind of change mode continuous variable valve actuator for air | |
| EP2787199A1 (en) | Exhaust brake valve for automobile and automobile | |
| CN102853092A (en) | Composite air cylinder type constant-pressure butterfly-shaped valve | |
| CN102817667A (en) | Frame-type exhaust-valve executive device with auxiliary rocker arm driven by auxiliary cam | |
| CN204098976U (en) | Motor auxiliary valve driving mechanism | |
| CN206522166U (en) | A kind of gear rod engine brake mechanism | |
| CN201924986U (en) | Special valve driving mechanism for engine brake | |
| CN209818129U (en) | Adjustable engine brake actuating mechanism | |
| CN109958492B (en) | Adjustable engine brake actuating mechanism and application method thereof | |
| CN201661328U (en) | Driving device for engine brake | |
| CN208982134U (en) | The auxiliary brake mechanism of medium and heavy engine | |
| CN104343486A (en) | Variable valve lift device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150926 |
|
| EXPY | Termination of patent right or utility model |