CN101915168A - Improved electronic throttle body - Google Patents
Improved electronic throttle body Download PDFInfo
- Publication number
- CN101915168A CN101915168A CN 201010246817 CN201010246817A CN101915168A CN 101915168 A CN101915168 A CN 101915168A CN 201010246817 CN201010246817 CN 201010246817 CN 201010246817 A CN201010246817 A CN 201010246817A CN 101915168 A CN101915168 A CN 101915168A
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- Prior art keywords
- throttle
- tooth sector
- plate pin
- throttle plate
- gear
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 15
- 239000000446 fuel Substances 0.000 abstract description 5
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- 238000011161 development Methods 0.000 description 3
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- 230000007613 environmental effect Effects 0.000 description 3
- 239000010721 machine oil Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 2
- 229920000965 Duroplast Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
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- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention relates to an improved electronic throttle body, belonging to throttle assemblies of automobile engine air intake systems. A crankcase vent pipe, a carbon tank pipe and a pressurizing pipe are integrated on a throttle main body, so that an engine achieves the lowest emission, and the best dynamic property and the best fuel economy of a vehicle can be ensured. A main body is provided with a high and low idle speed limit mechanism which mainly comprises a throttle shaft, a sector gear, a reset torsional spring, a torsional spring and two limit stops on the main body. When a DC motor fails and can not operate normally, a throttle valve plate always stays in a high idle speed position state under the action of the two torsional springs, and the safety of the engine system is improved; the throttle valve plate is installed on the throttle shaft through self-locking screws, and the possibility of deforming the throttle shaft by the traditional reverse riveting screw is reduced. An O-ring is installed on an air inlet of the main body, so that the air tightness of connection between the main body and an air guide pipe of an air filter is improved.
Description
Technical field
The present invention relates to the automotive engine air intake system parts, relate in particular to the throttle body assembly technical field that is used for automotive engine air intake system.
Technical background
The research work of electronic air throttle body originates from the seventies in 20th century, begins the eighties to have product to come out, and over nearly 10 years, the research to electronic throttle has abroad obtained very fast development.Development trend can be summarized as: develop into nonlinear Control by linearity control on control strategy, develop into independently electronic throttle system by the auxiliary electron closure,, take into account and improve power character, Economy, control stability, emission performance and riding comfort to integrated various control function from single control function development.
At present, external many companies have done deep research and development to electronic throttle system, such as German Bosch, Pierburg, U.S. Delphi, Visteon, Japanese Toyota, Hitachi, Denso, Italian Marelli etc. have released the medium-to-high grade car that tandem product is applied to various brands.Domestic some car as POLO, also has been equipped with electronic throttle system.
The effect of automobile engine system throttle body assembly is the charge flow rate of control motor, the operating conditions of decision motor.The driver comes the control node valve opening by the operation gas pedal.Electronic air throttle body assembly does not in the market have integrated crankcase bleed pipe, canister pipe and pressure inlet, from power character, the feature of environmental protection and fuel economy angle, motor always is not in optimal operating condition fully, and will make machine oil thinning after inflammable mixture in piston ring is scurried crankcase and the waste gas devaporation, function degenerates.Gasoline vapor in the activated carbon canister can not be brought into by clean air and participate in burning in the cylinder, has increased discharging, and has increased oil consumption.Secondly, existing electronic air throttle body rationally is not provided with high and low idling position-limit mechanism, thereby causes owing accurately of height idle position control, and causes can't proper functioning the time when motor breaks down, and the closure valve block can not automatically restore to the high idle speed position; In addition, easily leak the suction port of electronic air throttle body and empty filter plastics air pipe cooperation place; Electronic air throttle body is in long-term the use, and problem that causes throttle plate pin distortion throttle body hair fastener because of the anti-riveting screw or the like happens occasionally.
Summary of the invention
The purpose of this invention is to provide a kind of modified model electronic air throttle body that has, with final raising engine charge efficient, fuel economy and emission performance.
The object of the present invention is achieved like this: a kind of modified model electronic air throttle body, comprise tb, through the throttle plate pin of Bearing Installation on body, the closure valve block, motor, position transducer, crankcase bleed pipe, canister pipe and pressure inlet are distinguished riveting on tb, and are connected with the throttle inflow passage; The closure valve block adopts Self-locking screw to be installed on the throttle plate pin; Tooth sector is installed on the throttle plate pin, is installed in motor gear and the intermediate gear engagement that is installed on the body on the motor shaft, intermediate gear and tooth sector engagement; The pivotal position that is positioned at tooth sector on the body is provided with the positive stop of two projections; Reduction torsion spring one end is fixed on the body, and the other end is fixed on the tooth sector, and torsion spring one end between tooth sector and gear door is fixed on the tooth sector, and the other end is fixed on the gear door; The gear door is stuck on the hook of tooth sector; The torsion of reduction torsion spring arrives on first positive stop of body the gear door under nature; When throttle plate pin is in the high idle speed position, when throttle plate pin was just going to fully open position, tooth sector arrived on acting surface of second positive stop of body; When throttle plate pin was inverted to low idle position, tooth sector arrived on another acting surface of second positive stop of body; On the suction port of body O-ring seals is installed.
Compared with prior art, the invention has the beneficial effects as follows:
1, be skillfully constructed, special structure design, improve engine charge efficient, fuel economy and emission performance.
Integrated crankcase bleed pipe on the electronic air throttle body assembly is to prevent that by inflammable mixture and waste gas that the negative pressure of air inlet is extracted out in piston ring is scurried crankcase from crankcase machine oil from going bad, preventing crank shaft oil seal, crankcase liner seepage on the one hand; Be environmental requirement on the other hand, prevent various oily vapours atmosphere pollutions; Integrated canister connecting tube on the electronic air throttle body assembly of the present invention, and be connected with canister control valve, this valve is subjected to the control of Engine ECU, behind the engine misses, gasoline vapor and fresh air are in in-tank mixing and be stored in the activated carbon canister, behind engine start, the electromagnetic valve that is contained between activated carbon canister and the intake manifold is opened, and the gasoline vapor in the activated carbon canister is brought into participation burning in the cylinder by clean air under the degree of vacuum effect of suction tude.Do like this and not only reduced discharging, and reduced oil consumption.Be integrated with pressure inlet on the electronic throttle assembly and be connected, thereby the air inlet ability that has improved motor improves the power of motor, can make engine emission reach best, guarantees the power character and the fuel economy of vehicle the best with the body main passage.
2, high and low idling position-limit mechanism rationally is set, accurately control the minimum and maximum aperture of closure valve block under various operating modes, simultaneously, when breaking down, motor causes can't proper functioning the time, the closure valve block can automatically reset to the high idle speed position (exactly being under two torsion spring actings in conjunction) under the reduction torsion spring effect, thereby has increased the Security of engine system.
3, on the suction port of body seal ring is installed, because the suction port of throttle body is to link to each other with an empty filter duroplasts air pipe, consider that simultaneously motor is the exhaust gas turbocharge motor, in order to strengthen engine booster air inlet sealing, the suction port of throttle body is connected with empty filter air pipe except using the steel band clip, and throttle valve body has also carried the O RunddichtringO.
4, the closure valve block is installed and is used Self-locking screw on the body, has reduced the possibility that causes throttle plate pin distortion throttle body hair fastener because of the anti-riveting screw on the one hand, has reduced the operation of anti-riveting screw on the assembly line on the other hand, has reduced cost.
Description of drawings
Fig. 1 is the stereogram of electronic air throttle body of the present invention;
Fig. 2 is a plan view of the present invention;
Fig. 3 is a sectional view of the present invention;
Fig. 4 is O RunddichtringO mounting point figure of the present invention;
Fig. 5 is the location diagram of tooth sector and two positive stops.
Embodiment
Figure, 2, Fig. 3 illustrates, and the present invention is mainly by tb 1, closure valve block 3, throttle plate pin 2 (being installed on the body) through bearing 6, sensor cluster 4, electric machine assembly (containing direct current generator 5), intermediate gear, tooth sector assembly and compositions such as torsion spring and reduction torsion spring.
Crankcase bleed pipe 13, canister pipe 14 and pressure inlet 15 are distinguished rivetings on tb, and are connected with the throttle inflow passage; Closure valve block 3 adopts Self-locking screw 17 to be installed on the throttle plate pin 2; Tooth sector 11 is installed on the throttle plate pin 2, is installed in motor gear 7 and intermediate gear 10 engagements that are installed on the body 1, intermediate gear and tooth sector engagement on the motor shaft; The pivotal position that is positioned at tooth sector on the body is provided with the positive stop of two projections; Reduction torsion spring 8 one ends are fixed on the body, and the other end is fixed on the tooth sector 11, and torsion spring 9 one ends between tooth sector and gear door 12 are fixed on the tooth sector, and the other end is fixed on the gear door 12; Gear door 12 is stuck on the hook of tooth sector; Under nature, the torsion of reduction torsion spring 8 arrives on first positive stop 18 of body gear door 12; When throttle plate pin is in the high idle speed position, when throttle plate pin was just going to fully open position, tooth sector 11 arrived on 19 1 acting surfaces of second positive stop of body (referring to Fig. 5); When throttle plate pin was inverted to low idle position, tooth sector 11 blocks arrived on another acting surface of second positive stop of body.
High and low idling position-limit mechanism is mainly by throttle plate pin, tooth sector 11, and two positive stops of the projection on reduction torsion spring 8, torsion spring 9 and the tb are formed.One end of reduction torsion spring 8 is fixed on the tb, the other end is fixed on the tooth sector on the throttle plate pin, because the torsion of reduction torsion spring 8 makes gear door block arrive on the positive stop of body under nature, thereby making the closure valve block remain on the high idle speed state (also we can say, the unlatching that makes the closure valve block is corresponding to the high idle speed location status), the tooth sector block arrives on the positive stop (acting surface) of body when throttle plate pin just goes to fully open position, torsion spring 9 one ends are fixed on the tooth sector, the other end is fixed on the gear door 12, and torsion spring 9 is between the two.The tooth sector block arrived on the body positive stop (another acting surface) when throttle plate pin was inverted to low idle position.We can say that also the tooth sector block is inverted to when arriving on the positive stop, throttle plate pin is inverted to low idle position.Cause can't proper functioning the time when motor breaks down, the closure valve block can automatically restore to the high idle speed location status under the twisting force of reduction torsion spring 8.
Working procedure of the present invention is as follows:
The closure valve block is fixed on the throttle plate pin, and can rotate in the body gas-entered passageway, in order to change the aperture of closure valve block.Sensor interface one end of throttle plate pin is equipped with tooth sector and gear door (torsion spring 9 is contained between the two).Because the twisting force of reduction torsion spring 8 and the barrier effect of throttle body body block, the closure valve block remains on the desired high idle speed location status of system in nature.Direct current generator is contained on the electronic air throttle body body, motor gear is equipped with in direct current arbor upper end, and motor is by gear transmission mechanism (motor gear 7 and intermediate gear 10 engagements, intermediate gear 10 and tooth sector 11 engagements), drive the rotation of throttle plate pin, thus the aperture of control closure valve block.The closure valve block is just changeing maximum can be to the desired full-gear of system, and can not just change under the stopping of tb block again.
The structure of whole electronic air throttle body control system comprises: near 1, accelerator pedal position sensor (being installed in the operator cabin gas pedal); 2, electronic air throttle body assembly; 3, ECU (being arranged in the automobile engine control system).When at first the driver steps on the throttle pedal, accelerator pedal position sensor is made up of two potentiometric sensors, work under the identical reference potential (5V) that provides by ECU, change along with accelerator pedal position, corresponding variation also takes place in output voltage, produces the voltage signal input ECU of gas pedal tread amount size thus.Similar with pedal position sensor, throttle position sensor also is made up of the two-way noncontacting proximity sensor, and provides identical reference potential (5V) by ECU.When closure valve block position changes, drive throttle plate pin and rotate, thereby will change corresponding sensor voltage signal input ECU with the throttle plate pin corner.Electronic air throttle body control motor adopts the precision height, is quick on the draw, is convenient to servo-controlled direct current generator.ECU is the maincenter of The whole control system, is made of signal analysis and processing module and direct current motor drive circuit module two-part.After accelerator pedal position sensor inputs to ECU with voltage signal, ECU handles by analysis, and the binding site sensor is input to the current position signal of ECU, obtain the best aperture of closure, and the correspondent voltage signal sent in the direct current motor drive circuit module, the drive controlling direct current generator makes direct current generator pass through (motor gear and the intermediate gear engagement as shown in Figure 3 of two-stage gear transmission mechanism by pulse duration modulation (PWM), intermediate gear and tooth sector engagement, tooth sector and throttle plate pin are assembled together, and can drive the throttle plate pin rotation), thus make closure reach best aperture position.Throttle position sensor is given ECU the current aperture signal feed back of closure again, forms the positioning control of closed loop.
Crankcase bleed pipe 13 is connected with the body main passage, is on the one hand to lean on the negative pressure of air inlet from inflammable mixture and the waste gas of crankcase extraction in piston ring is scurried crankcase, prevents that machine oil from going bad, preventing crank shaft oil seal, crankcase liner seepage; Be environmental requirement on the other hand, prevent various oily vapours atmosphere pollutions.Canister pipe 14 is connected with the body main passage, and be connected with canister control valve, this valve is subjected to the control of Engine ECU, behind the engine misses, gasoline vapor and fresh air are in in-tank mixing and be stored in the activated carbon canister, behind engine start, the electromagnetic valve that is contained between activated carbon canister and the intake manifold is opened, and the gasoline vapor in the activated carbon canister is brought into participation burning in the cylinder by clean air under the degree of vacuum effect of suction tude.Do like this and not only reduced discharging, and reduced oil consumption.Pressure inlet 15 is connected with the body main passage, thereby has improved the power of the air inlet ability raising motor of motor.
Referring to Fig. 4, O RunddichtringO 16 is installed on the suction port of body 1, because the suction port of throttle body is to link to each other with an empty filter duroplasts air pipe, consider that simultaneously motor is the exhaust gas turbocharge motor, in order to strengthen engine booster air inlet sealing, the suction port of throttle body is connected with empty filter air pipe except using the steel band clip, and throttle body has also carried the O RunddichtringO.The closure valve block is installed with Self-locking screw 17 on the body 1, has reduced the possibility that causes throttle plate pin distortion closure hair fastener because of the anti-riveting screw on the one hand, has reduced the operation of anti-riveting screw on the assembly line on the other hand, has reduced cost.
Intermediate gear is a cluster gear, promptly form and (also we can say by an intermediate gear of coaxial setting and a reduction gear, the said gear driving mechanism is: motor gear and intermediate gear engagement, with the reduction gear and the tooth sector engagement of the coaxial setting of intermediate gear).
Claims (1)
1. modified model electronic air throttle body, comprise, tb (1), be installed in throttle plate pin (2) on the body, closure valve block (3), motor (5) through bearing (6), position transducer (4), it is characterized in that crankcase bleed pipe (13), canister pipe (14) and pressure inlet (15) are distinguished riveting on tb, and be connected with the throttle inflow passage; Described closure valve block (3) adopts Self-locking screw (17) to be installed on the throttle plate pin (2); Tooth sector (11) is installed on the throttle plate pin (2), is installed in motor gear (7) and intermediate gear (10) engagement that is installed on the body (1) on the motor shaft, intermediate gear and tooth sector engagement; The pivotal position that is positioned at tooth sector on the body is provided with the positive stop of two projections; Reduction torsion spring (8) one ends are fixed on the body, and the other end is fixed on the tooth sector (11), and torsion spring (9) one ends that are positioned between tooth sector and the gear door (12) are fixed on the tooth sector, and the other end is fixed on the gear door (12); Gear door (12) is stuck on the hook of tooth sector; The torsion of reduction torsion spring under nature (8) arrives on first positive stop (18) of body gear door (12); When throttle plate pin is in the high idle speed position, when throttle plate pin was just going to fully open position, tooth sector (11) arrived on (19) acting surfaces of second positive stop of body; When throttle plate pin was inverted to low idle position, tooth sector (11) arrived on another acting surface of second positive stop of body; O-ring seals (16) is installed on the suction port of body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010246817 CN101915168A (en) | 2010-08-06 | 2010-08-06 | Improved electronic throttle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010246817 CN101915168A (en) | 2010-08-06 | 2010-08-06 | Improved electronic throttle body |
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| Publication Number | Publication Date |
|---|---|
| CN101915168A true CN101915168A (en) | 2010-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010246817 Pending CN101915168A (en) | 2010-08-06 | 2010-08-06 | Improved electronic throttle body |
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| Country | Link |
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| CN (1) | CN101915168A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392742A (en) * | 2011-10-12 | 2012-03-28 | 四川红光汽车机电有限公司 | Electronic throttle body |
| CN104179578A (en) * | 2014-08-15 | 2014-12-03 | 广西淞森车用部件有限公司 | Automobile electronic throttle valve |
| CN104379910A (en) * | 2013-06-03 | 2015-02-25 | 现代凯菲克株式会社 | Valve assembly |
| CN104454177A (en) * | 2014-12-15 | 2015-03-25 | 无锡隆盛科技股份有限公司 | Throttle valve driven by direct-current motor |
| CN104533664A (en) * | 2015-01-07 | 2015-04-22 | 福建福鼎京科化油器有限公司 | Step control choke valve device for carburetor |
| CN106979085A (en) * | 2016-01-19 | 2017-07-25 | 大陆汽车系统公司 | Bearing seal assembly for electronic throttle control valve |
| CN107893705A (en) * | 2016-10-03 | 2018-04-10 | 马涅蒂-马瑞利公司 | Choke valve for explosive motor |
| WO2021003606A1 (en) * | 2019-07-05 | 2021-01-14 | 华益机电有限公司 | Throttle for electronic fuel injection |
| CN117780516A (en) * | 2024-02-23 | 2024-03-29 | 福鼎市福海化油器有限公司 | Dual-chamber throttle body with adjustable maximum air intake |
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| US20040187827A1 (en) * | 2003-03-31 | 2004-09-30 | Goichi Katayama | Air intake structure for engine |
| JP2008106637A (en) * | 2006-10-24 | 2008-05-08 | Aisan Ind Co Ltd | Blowby gas passage structure |
| CN201180582Y (en) * | 2008-04-11 | 2009-01-14 | 东莞市力宇燃气动力有限公司 | A gas engine converted from a diesel engine |
| CN101520004A (en) * | 2009-04-01 | 2009-09-02 | 四川红光汽车机电有限公司 | Electronic air throttle body for non-contact sensor |
| CN101629503A (en) * | 2008-07-18 | 2010-01-20 | 福特环球技术公司 | System and method for storing crankcase gases to improve engine air-fuel control |
-
2010
- 2010-08-06 CN CN 201010246817 patent/CN101915168A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040187827A1 (en) * | 2003-03-31 | 2004-09-30 | Goichi Katayama | Air intake structure for engine |
| JP2008106637A (en) * | 2006-10-24 | 2008-05-08 | Aisan Ind Co Ltd | Blowby gas passage structure |
| CN201180582Y (en) * | 2008-04-11 | 2009-01-14 | 东莞市力宇燃气动力有限公司 | A gas engine converted from a diesel engine |
| CN101629503A (en) * | 2008-07-18 | 2010-01-20 | 福特环球技术公司 | System and method for storing crankcase gases to improve engine air-fuel control |
| CN101520004A (en) * | 2009-04-01 | 2009-09-02 | 四川红光汽车机电有限公司 | Electronic air throttle body for non-contact sensor |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392742B (en) * | 2011-10-12 | 2013-12-18 | 四川红光汽车机电有限公司 | Electronic throttle body |
| CN102392742A (en) * | 2011-10-12 | 2012-03-28 | 四川红光汽车机电有限公司 | Electronic throttle body |
| CN104379910A (en) * | 2013-06-03 | 2015-02-25 | 现代凯菲克株式会社 | Valve assembly |
| CN104179578A (en) * | 2014-08-15 | 2014-12-03 | 广西淞森车用部件有限公司 | Automobile electronic throttle valve |
| CN104454177A (en) * | 2014-12-15 | 2015-03-25 | 无锡隆盛科技股份有限公司 | Throttle valve driven by direct-current motor |
| CN104533664B (en) * | 2015-01-07 | 2018-03-02 | 福建福鼎京科化油器有限公司 | The step motion control choke of carburetor |
| CN104533664A (en) * | 2015-01-07 | 2015-04-22 | 福建福鼎京科化油器有限公司 | Step control choke valve device for carburetor |
| CN106979085A (en) * | 2016-01-19 | 2017-07-25 | 大陆汽车系统公司 | Bearing seal assembly for electronic throttle control valve |
| CN107893705A (en) * | 2016-10-03 | 2018-04-10 | 马涅蒂-马瑞利公司 | Choke valve for explosive motor |
| CN107893705B (en) * | 2016-10-03 | 2021-08-06 | 马涅蒂-马瑞利公司 | Throttle valve for internal combustion engine |
| WO2021003606A1 (en) * | 2019-07-05 | 2021-01-14 | 华益机电有限公司 | Throttle for electronic fuel injection |
| CN117780516A (en) * | 2024-02-23 | 2024-03-29 | 福鼎市福海化油器有限公司 | Dual-chamber throttle body with adjustable maximum air intake |
| CN117780516B (en) * | 2024-02-23 | 2024-05-03 | 福鼎市福海化油器有限公司 | Dual-chamber throttle body with adjustable maximum air intake |
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Application publication date: 20101215 |