CN103277562A - Power transmission mechanism for electric exhaust gas recirculation (EGR) valve - Google Patents
Power transmission mechanism for electric exhaust gas recirculation (EGR) valve Download PDFInfo
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- CN103277562A CN103277562A CN2013102271785A CN201310227178A CN103277562A CN 103277562 A CN103277562 A CN 103277562A CN 2013102271785 A CN2013102271785 A CN 2013102271785A CN 201310227178 A CN201310227178 A CN 201310227178A CN 103277562 A CN103277562 A CN 103277562A
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- valve rod
- valve
- transmission mechanism
- power
- power transmission
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- 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
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Abstract
The invention discloses a power transmission mechanism for an electric exhaust gas recirculation (EGR) valve. The valve comprises a valve rod, and the top end of the valve rod is connected with a power output mechanism through the power transmission mechanism. The power transmission mechanism comprises a metal gear, a sliding block is arranged at the top end of the valve rod, the top end of the sliding block is fixedly connected with a rack meshed with the metal gear, the valve rod, the sliding block and the rack are coaxial, the axes of the valve rod, the sliding block and the rack are perpendicular to the central axis of the metal gear, and a spring used for resetting the valve rod is arranged between the bottom end of the sliding block and a valve seat. The power transmission mechanism solves the problem of force arm change in power conversion of an eccentric wheel on the basis that the valve rod works normally, and opening force stability of the valve rod is greatly improved.
Description
Technical field
The present invention relates to engine exhaust emission control gear technical field, particularly a kind of electronic EGR valve.
Background technique
Engine exhaust-gas recirculating system (abbreviation egr system) is for reducing the discharge capacity of nitrogen oxides in the waste gas, when its function mode refers to turn round under engine load, the EGR opening of valves, the small amount of exhaust gas that motor is discharged is transmitted back to intake manifold, and enters cylinder with fresh inflammable mixture and burn again.Its principle is to utilize a large amount of CO that contain in the waste gas
2, and CO
2Can not burn but can absorb a large amount of heat, and the combustion temperature of mixed gas in the cylinder is reduced, thereby reduces the growing amount of NOx, reduces exhaust pollution.
EGR valve in the egr system is mainly used in regulating the flow of control EGR gas, the working principle of conventional electric EGR valve is that the moment of torsion that direct current generator is exported is slowed down by double-reduction gear, after increasing output torque and reducing rotational speed, to rotatablely move by eccentric wheel again and be converted into straight line motion, thereby drive the valve rod action, realize the open and close of EGR valve.But will rotatablely move by eccentric stiffener is converted in the straight-line process, because the eccentric stiffener pendulum angle changing all the time, so the arm of force of spool opening direction also changing always, and the result must reduce the stability that opening force is exported.
Summary of the invention
The technical problem that the present invention solves provides and is a kind ofly guaranteeing EGR valve proper functioning, and further improving the power-transmitting unit that the EGR valve has stable opening force.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
Electronic EGR valve actuation force transmission mechanism, comprise the valve rod that is arranged in the valve seat, the top of described valve rod is connected with power take-off mechanism by power-transmitting unit, described power take-off mechanism comprises direct current generator, the output shaft connection reducer of direct current generator, the output shaft of retarder connects power-transmitting unit, described power-transmitting unit comprises the metal gear that is installed on the reducer output shaft, valve stem tip is provided with and drives the slide block that valve rod moves downward under the power-transmitting unit effect, the top of slide block is fixedly connected with the tooth bar that is meshed with metal gear, described valve rod, slide block and tooth bar coaxial line are also perpendicular with the central axis of metal gear; Be provided with the spring be used to the valve rod that resets between the bottom of described slide block and the valve seat.
Owing to adopted above technological scheme, the invention technological progress is as follows.
Power-transmitting unit of the present invention adopts pitch wheel and tooth bar, realized to rotatablely move to the conversion of linear movement, on the basis that guarantees the valve rod proper functioning, overcome eccentric wheel and carried out the existing arm of force variation issue of power-converting, improved the stability of the suffered opening force of valve rod greatly.
Description of drawings
Fig. 1 is structural front view of the present invention.
Fig. 2 is the structural representation of power-transmitting unit of the present invention.
Wherein: 1, valve rod, 2, direct current generator, 3, retarder, 4, slide block, 5, metal gear, 6, tooth bar, 7, spring, 8, reducer output shaft, 9, valve seat.
Embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is further elaborated.
A kind of electronic EGR valve actuation force transmission mechanism, as shown in Figure 1, comprise the valve rod 1 that is arranged in the valve seat 9, the top of valve rod is connected with power take-off mechanism by power-transmitting unit, power take-off mechanism comprises direct current generator 2, the output shaft connection reducer 3 of direct current generator 2, the output shaft of retarder 3 connects power-transmitting unit.
The structure of power-transmitting unit comprises metal gear 5, tooth bar 6 and slide block 4 as shown in Figure 2; Metal gear 5 is installed on the reducer output shaft 8, and slide block 4 is installed in valve rod 1 top, and tooth bar 6 is fixedly connected on the top of slide block 4, and tooth bar 6 is meshed with metal gear 5.Valve rod 1, slide block 4 and tooth bar 6 are with the vertical axis setting, and metal gear 5, retarder 3, direct current generator 2 are with the transversal line setting.Be provided with spring 7 between the bottom of slide block 4 and the valve seat 9, be used for resetting valve rod.
Working principle of the present invention is as described below.
When direct current generator 2 energisings, slow down by retarder 3, increase output torque, and reduce rotational speed, and then from reducer output shaft 8 outputting rotary powers; Be meshed with tooth bar 6 by the metal gear 5 on the reducer output shaft 8, rotatablely moving of reducer output shaft is converted into moving downward of slide block 4, further drive valve rod and move downward, thereby realize the unlatching of EGR valve.
When direct current generator cut off the power supply, valve rod resetted under the effect of spring 3, and the EGR valve cuts out.
Claims (1)
1. electronic EGR valve actuation force transmission mechanism, comprise the valve rod (1) that is arranged in the valve seat (9), the top of described valve rod is connected with power take-off mechanism by power-transmitting unit, described power take-off mechanism comprises direct current generator (2), the output shaft connection reducer (3) of direct current generator (2), the output shaft of retarder (3) connects power-transmitting unit, it is characterized in that: described power-transmitting unit comprises the metal gear (5) that is installed on the reducer output shaft (8), valve rod (1) top is provided with and drives the slide block (4) that valve rod moves downward under the power-transmitting unit effect, the top of slide block (4) is fixedly connected with the tooth bar (6) that is meshed with metal gear (5), described valve rod (1), slide block (4) and tooth bar (6) coaxial line are also perpendicular with the central axis of metal gear (5); Be provided with the spring (7) be used to the valve rod that resets between the bottom of described slide block (4) and the valve seat (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102271785A CN103277562A (en) | 2013-06-07 | 2013-06-07 | Power transmission mechanism for electric exhaust gas recirculation (EGR) valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102271785A CN103277562A (en) | 2013-06-07 | 2013-06-07 | Power transmission mechanism for electric exhaust gas recirculation (EGR) valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103277562A true CN103277562A (en) | 2013-09-04 |
Family
ID=49060154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102271785A Pending CN103277562A (en) | 2013-06-07 | 2013-06-07 | Power transmission mechanism for electric exhaust gas recirculation (EGR) valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103277562A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542603A (en) * | 2016-06-27 | 2018-01-05 | 马涅蒂-马瑞利公司 | EGR valve actuator device and related EGR valve sub-assembly in explosive motor |
| CN108426088A (en) * | 2018-03-08 | 2018-08-21 | 禹伟 | A kind of exhaust emission pipe for petroleum refining |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090106840A (en) * | 2008-04-07 | 2009-10-12 | 캄텍주식회사 | Exhaust gas recirculation apparatus for internal combustion engine |
| CN201739604U (en) * | 2010-06-02 | 2011-02-09 | 潍坊威度电子科技有限公司 | Integral electric EGR valve |
| EP2222991B1 (en) * | 2007-12-21 | 2012-06-27 | Continental Automotive GmbH | Actuator for actuating a valve flap in a valve seat |
| CN202611935U (en) * | 2012-06-01 | 2012-12-19 | 潍坊威度电子科技有限公司 | Electric EGR valve |
| CN103016215A (en) * | 2012-12-14 | 2013-04-03 | 宜宾天瑞达汽车零部件有限公司 | Rotary EGR (Exhaust Gas Recirculation) valve |
| CN203309288U (en) * | 2013-06-07 | 2013-11-27 | 无锡隆盛科技股份有限公司 | Power-driven EGR (exhaust gas recirculation) valve power transmission mechanism |
-
2013
- 2013-06-07 CN CN2013102271785A patent/CN103277562A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2222991B1 (en) * | 2007-12-21 | 2012-06-27 | Continental Automotive GmbH | Actuator for actuating a valve flap in a valve seat |
| KR20090106840A (en) * | 2008-04-07 | 2009-10-12 | 캄텍주식회사 | Exhaust gas recirculation apparatus for internal combustion engine |
| CN201739604U (en) * | 2010-06-02 | 2011-02-09 | 潍坊威度电子科技有限公司 | Integral electric EGR valve |
| CN202611935U (en) * | 2012-06-01 | 2012-12-19 | 潍坊威度电子科技有限公司 | Electric EGR valve |
| CN103016215A (en) * | 2012-12-14 | 2013-04-03 | 宜宾天瑞达汽车零部件有限公司 | Rotary EGR (Exhaust Gas Recirculation) valve |
| CN203309288U (en) * | 2013-06-07 | 2013-11-27 | 无锡隆盛科技股份有限公司 | Power-driven EGR (exhaust gas recirculation) valve power transmission mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542603A (en) * | 2016-06-27 | 2018-01-05 | 马涅蒂-马瑞利公司 | EGR valve actuator device and related EGR valve sub-assembly in explosive motor |
| CN108426088A (en) * | 2018-03-08 | 2018-08-21 | 禹伟 | A kind of exhaust emission pipe for petroleum refining |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130904 |