CN101978148A - Idle air intake control device of engine - Google Patents
Idle air intake control device of engine Download PDFInfo
- Publication number
- CN101978148A CN101978148A CN2009801095133A CN200980109513A CN101978148A CN 101978148 A CN101978148 A CN 101978148A CN 2009801095133 A CN2009801095133 A CN 2009801095133A CN 200980109513 A CN200980109513 A CN 200980109513A CN 101978148 A CN101978148 A CN 101978148A
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- CN
- China
- Prior art keywords
- dust
- chamber
- trapping chamber
- dust trapping
- bypass
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M23/00—Apparatus for adding secondary air to fuel-air mixture
- F02M23/04—Apparatus for adding secondary air to fuel-air mixture with automatic control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
Disclosed is an idle air intake control device of an engine wherein a bypath (5) connected with an intake route (1) while detouring a throttle valve (2), and a bypass valve (6) for throttling the bypath (5) adjustably are provided in a throttle body (T), and a dust trap (7) for preventing intrusion of dust into the bypass valve (6) from the intake route (1) is provided in the bypath (5). The dust trap (7) is formed, to have a U-shaped section, of a first trap chamber (30) to which the intake route (1)-side trap inlet hole (10) opens, a second trap chamber (31) contiguous to the first trap chamber (30) with a barrier wall (32) interposed therebetween and to which the bypass valve (6)-side trap outlet hole (11) opens, and a reversal chamber (33) for communicating the first and second trap chambers (30, 31) with each other so that the chamber surrounds one end of the barrier wall (32). Consequently, an idle intake control device of an engine equipped with a compact dust trap and exhibiting good dust separation effect can be provided.
Description
Technical field
The present invention relates to a kind of improvement of idling Intaker controller of motor, the idling Intaker controller of this motor has following structure: throttle body has gas-entered passageway that links to each other with the suction port of motor and the closure that this gas-entered passageway is opened and closed, be provided with bypass and bypass valve at this throttle body, described bypass is walked around closure and is connected with gas-entered passageway, described bypass valve adjustable ground makes this by-pass throttle, is provided with in described bypass and prevents that dust from entering the dust arrestment device (dust trap) of bypass valve from gas-entered passageway.
Background technique
All the time, in the idling Intaker controller of above-mentioned motor, known have following two kinds of structures: a kind of structure is, the dust arrestment device is made of a plurality of paths that crank-like ground connects, the direction of the suction air that flows in bypass at right angles changes, thereby isolates dust (with reference to patent documentation 1) from this suction air; Another kind of structure is, by constituting dust arrestment device (with reference to patent documentation 2) to sucking the swirling chamber that air applies gyration airflow and centrifugation goes out dust from suck air.
Patent documentation 1: TOHKEMY 2001-115931 communique
Patent documentation 2: Japanese kokai publication hei 3-264769 communique
Yet, in the catcher of patent documentation 1 record, the direction of the suction air in the bypass is at right angles changed, a little less than the separating effect that sucks the air separation dust, in addition, in the catcher in patent documentation 2, in order to apply gyration airflow to sucking air effectively, need in throttle body, form large diameter swirling chamber, be used for the small-sized throttle body of motor bike etc., almost not form the more than needed of this swirling chamber.
Summary of the invention
The present invention In view of the foregoing finishes, and its purpose is to provide the idling Intaker controller of the motor of a kind of good separation with dust and compact dust arrestment device.
In order to reach above-mentioned purpose, first of the idling Intaker controller of motor of the present invention is characterised in that, throttle body has gas-entered passageway that links to each other with the suction port of motor and the closure that this gas-entered passageway is opened and closed, be provided with bypass and bypass valve at this throttle body, described bypass is walked around closure and is connected with gas-entered passageway, described bypass valve adjustable ground makes this by-pass throttle, be provided with in described bypass and prevent that dust from entering the dust arrestment device of bypass valve from gas-entered passageway, wherein, described dust arrestment device is formed in the mode that the cross section is the U font by following each several part: first dust trapping chamber offers the catcher inlet opening of the bypass of gas-entered passageway side in this first dust trapping chamber; Second dust trapping chamber, this second dust trapping chamber is adjacent with this first dust trapping chamber across partition wall, and offers the catcher exit orifice of the bypass of bypass valve side in this second dust trapping chamber; And the reverse chamber, this reverse chamber will be communicated with between described first dust trapping chamber and second dust trapping chamber in the mode around an end of described partition wall.
And on the basis of first feature, of the present invention second is characterised in that, forms stepped part between the described reverse chamber and second dust trapping chamber, and this stepped part makes the bottom surface of second dust trapping chamber be higher than the bottom surface of reversing the chamber.
And, on the basis of first or second feature, the of the present invention the 3rd is characterised in that, forms described first dust trapping chamber, second dust trapping chamber and reverses the chamber by mould-forming from a side of throttle body, and the nib that rises that will remain in a side of throttle body with the sealing bolt seals.
Have, on the basis of the 3rd feature, the of the present invention the 4th is characterised in that again, described catcher inlet opening is opened in the bottom surface of described first dust trapping chamber.
In addition, on the basis of the 4th feature, the of the present invention the 5th is characterised in that, described catcher exit orifice is opened in the inner side surface of described second dust trapping chamber, make the parallel axes of the valve stem of the axis of this catcher exit orifice and closure, be provided with the valve opening that is used to install described bypass valve in mode with described catcher exit orifice coaxial line.
The invention effect
In accordance with a first feature of the invention, the air by bypass or gas in the dust arrestment device when bypass valve flows, at first, when when the catcher inlet opening flows into first dust trapping chamber, flow towards reversing the chamber along partition wall, reverse at this and to reverse roughly 180 ° and flow in chamber towards second dust trapping chamber, and continue to the diffluence of catcher exit orifice, therefore, be included in dust in above-mentioned air or the gas when carrying out above-mentioned roughly 180 ° reverse effectively by centrifugation, consequently, the dust that arrives the catcher exit orifice falls sharply.Therefore, dust accretion can be prevented around bypass valve, and the adjustment function all-the-time stable of this bypass valve can be made.And, by first dust trapping chamber, second dust trapping chamber with to reverse the U font dust arrestment device that the chamber constituted be compact, can easily be formed at the small-sized throttle body of usefulness such as motor bike.
According to second feature of the present invention, the bottom surface of second dust trapping chamber exceeds single order via stepped part than the bottom surface of reversing the chamber, therefore, having reversed roughly 180 ° air or gas in reversing the chamber collides with above-mentioned stepped part and changes route upward, be transferred to second dust trapping chamber then, and to the diffluence of catcher exit orifice.Therefore, being about to just can to utilize proportion difference with the dust separation that is contained in above-mentioned air or the gas, can improve the dust separation function of dust arrestment device from reversing the chamber when changing route with the stepped part collision before being transferred to second dust trapping chamber.
According to the 3rd feature of the present invention, form the dust arrestment device from a side of throttle body by mould-forming, and the nib that rises that will remain in a side of throttle body with the sealing bolt seals, therefore, can in the moulding throttle body, form the dust arrestment device, need not the dust arrestment device is implemented special processing, can help to cut down manufacture cost.
According to the 4th feature of the present invention, offer the catcher inlet opening in the bottom surface of first dust trapping chamber, so can be by carrying out mould-forming from described nib or hole to process easily to form this catcher inlet opening, and the air or the gas that flow in first dust trapping chamber slowly flow in the bottom of first dust trapping chamber, and in reversing the chamber, reverse, collide with stepped part effectively afterwards, so can improve the centrifugation of from this air or gas, isolating dust.
According to the 5th feature of the present invention, can process the valve stem hole of catcher exit orifice and valve opening and closure parallel at throttle body, coaxially, can improve the manufacturing efficiency of throttle body.
Description of drawings
Fig. 1 is the vertical profile side view of throttle body with idling Intaker controller of motor of the present invention.(first embodiment)
Fig. 2 is the amplification view along the 2-2 line of Fig. 1.(first embodiment)
Fig. 3 is the sectional view along the 3-3 line of Fig. 2.(first embodiment)
Fig. 4 is the sectional view along the 4-4 line of Fig. 2.(first embodiment)
Label declaration:
T: throttle body (throttle body); 1: gas-entered passageway; 2: closure: 2a: valve stem; 5: bypass; 6: bypass valve; 7: the dust arrestment device; 10: the catcher inlet opening; 11: the catcher exit orifice; 15: valve opening; 30: the first dust trapping chamber; 31: the second dust trapping chamber; 32: partition wall; 33: reverse (anti-translocation) chamber; 34: stepped part; 35: play nib; 36: the sealing bolt.
Embodiment
Based on the preferred embodiments of the present invention shown in the drawings embodiments of the present invention are described.
At first, in Fig. 1, throttle body T is installed on not shown engine for two-wheel motor vehicle, center at throttle body T, be formed with the gas-entered passageway 1 of the substantially horizontal that links to each other with the suction port of motor, the valve stem 2a of the bultterflythrottle 2 that this gas-entered passageway 1 is opened and closed is supported in throttle body T.Upper side wall at throttle body T is equipped with electro-magneto fuel injector 4, and this Fuelinjection nozzle 4 can be towards gas-entered passageway 1 burner oil that leans on the downstream side than closure 2.
As depicted in figs. 1 and 2, be formed with bypass 5 at throttle body T, this bypass 5 is circuitous and be connected with gas-entered passageway 1 at the upside of closure 2, be provided with bypass valve 6 and dust arrestment device 7 midway in this bypass 5, these bypass valve 6 adjustable grounds make bypass 5 throttlings, and this dust arrestment device 7 prevents that dust from entering bypass valve 6 from the upstream side of gas-entered passageway 1.In above-mentioned dust, blow back into burning slag in the gas-entered passageway 1 etc. when comprising dust in the atmosphere that is inhaled in the gas-entered passageway 1, engine flashback (back fire).
Illustrate clearly as Fig. 2, be provided with across the valve opening 15 of measuring hole 12, in this valve opening 15, bypass valve 6 is installed with catcher exit orifice 11 arranged coaxial at throttle body T.Valve opening 15 is by constituting as the bottom: the path bullport 16 that is opened in measuring hole 12; Link to each other with this path bullport 16 and large-diameter thread hole 17 that diameter is bigger than the diameter of this path bullport 16; And link to each other with this tapped hole 17 and big footpath bullport 18 that diameter is bigger than the diameter of this tapped hole 17.On the other hand, bypass valve 6 forms by following each one is fused: rotation is embedded in the valve portion 20 of path bullport 16 freely and sliding freely; The screw spindle part 21 that screws togather with tapped hole 17; And the head 22 of band well 23, these head 22 rotations are embedded in big footpath bullport 18 freely and sliding freely.In the circumferential groove 22a of head 22, maintain the sealed member 24 that closely contacts with the inner peripheral surface of big footpath bullport 18.And compression is provided with the helical spring 25 that is used to stop bypass valve 6 rotations in the bullport 18 of big footpath.
And, when the idle running of the motor that makes closure 2 full cut-offs, by the instrument that engages with well 23 bypass valve 6 is rotated and reverse, protrude in the overhang of measuring hole 12, thereby can adjust the idling air inflow of the motor that flows through bypass valve 5 by modulating valve portion 20.
Next, by Fig. 2～Fig. 4 dust arrestment device 7 is described.
Above-mentioned dust arrestment device 7 is that the upper surface side from throttle body T forms by mould-forming when casting throttle body T with catcher inlet opening 10, and the nib 35 that rises that remains in the circle of throttle body T upper surface is closed bolt 36 sealings.
In addition, in Fig. 2, label 37 is the throttle sensors that link with the valve stem 2a of closure 2, in order to detect the aperture of closure 2.
Next, the effect to present embodiment describes.
When engine idling operation, when the idling of motor suck air from the upstream side of gas-entered passageway 1 through bypass 5 when flow in the downstream side of gas-entered passageway 1, in dust arrestment device 7,10 air that flow into the underside side of first dust trapping chamber 30 at first flow towards reversing chamber 33 along partition wall 32 from the bottom of first dust trapping chamber 30 from the catcher inlet opening, and reverse at this and to reverse roughly 180 ° and flow towards second dust trapping chamber 31 in chamber 33.Because the bottom surface of this second dust trapping chamber 31 exceeds single order via stepped part 34 than the bottom surface of reversing chamber 33, therefore, the bottom of reversing chamber 33 reversed roughly that 180 ° air collides with above-mentioned stepped part 34 and towards above change course, travel to second dust trapping chamber 31 then, and to 11 diffluences of catcher exit orifice.Therefore, if sneaked into dust in the above-mentioned air, when air reverses roughly 180 ° at first in the bottom of reversing chamber 33, dust will be effectively from air centrifugation come out.Then, before air soon travelled to second dust trapping chamber 31 from reverse chamber 33, when changing course with stepped part 34 collisions, dust can be separated from air because of proportion difference.
Like this, the air of having been removed dust by dust arrestment device 7 flows towards measuring hole 12 from catcher exit orifice 11, and after the valve portion 20 by bypass valve 6 has adjusted flow, flows to the downstream side of gas-entered passageway 1 through bending road 13, and be inhaled in the motor.Therefore, always flow through clean air in the measuring hole 12, prevent dust accretion around the valve portion 20 of bypass valve 6, therefore, can make the adjustment function all-the-time stable of this bypass valve 6.
Yet, by first dust trapping chamber 30, second dust trapping chamber 31 and the dust arrestment device 7 that reverses the U font that chamber 33 constituted be compact, can easily be formed at the small-sized throttle body T that is used for motor bike etc.Particularly, owing to be that upper side side from throttle body T forms this dust arrestment device 7 by mould-forming, and the nib 35 that rises that will remain in the upper side of throttle body T with sealing bolt 36 seals, therefore, can in moulding throttle body T, form dust arrestment device 7, need not dust arrestment device 7 is implemented special processing, can help to cut down manufacture cost.
And, owing to offer catcher inlet opening 10 in the bottom surface of first dust trapping chamber 30, therefore, can be by carrying out mould-forming from described nib 35 or hole to process easily to form this catcher inlet opening 10, and flow into air in the first dust trapping chamber 30 ( わ せ that slowly flows in the bottom of first dust trapping chamber 30), and reverse reversing chamber 33, then effectively with stepped part 34 collisions, so can improve the centrifugation of from this air, isolating dust.
And, owing to make the axis Y2 of the catcher exit orifice of offering at the inner side surface of second dust trapping chamber 31 11 parallel with the axis Y1 of the valve stem 2a of closure 2, and the valve opening 15 that is used to install bypass valve 6 with mode being provided with catcher exit orifice 11 coaxial line Y2, therefore, can parallel at throttle body T, coaxially process the (Bian Shaft hole, valve stem hole of catcher exit orifice 11 and valve opening 15 and closure 2), can improve the manufacturing efficiency of throttle body T.
In the present embodiment, when engine idling operation, under the situation that gas of combustion has flow backwards in bypass 5 with dust such as burning slag etc., this dust is separated on bending road 13.Like this,, replace above-mentioned bending road 13, and dust arrestment device 7 of the present invention is arranged on than bypass valve 6 by also being effective in the bypass 5 in downstream in order from the gas that bypass 5, flows backwards, to isolate dust.
Claims (5)
1. the idling Intaker controller of a motor, the idling Intaker controller of this motor has following structure: throttle body (T) has gas-entered passageway (1) that links to each other with the suction port of motor and the closure (2) that this gas-entered passageway (1) is opened and closed, be provided with bypass (5) and bypass valve (6) at this throttle body (T), described bypass (5) is walked around closure (2) and is connected with gas-entered passageway (1), described bypass valve (6) adjustable ground makes this bypass (5) throttling, be provided with in described bypass (5) and prevent that dust from entering the dust arrestment device (7) of bypass valve (6) from gas-entered passageway (1)
The idling Intaker controller of this motor is characterised in that,
Described dust arrestment device (7) is formed in the mode that the cross section is the U font by following each several part: first dust trapping chamber (30) offers the catcher inlet opening (10) of the bypass (5) of gas-entered passageway (1) side in this first dust trapping chamber (30); Second dust trapping chamber (31), this second dust trapping chamber (31) is adjacent with this first dust trapping chamber (30) across partition wall (32), and offers the catcher exit orifice (11) of the bypass (5) of bypass valve (6) side in this second dust trapping chamber (31); And reversing chamber (33), this reverses chamber (33) will connection between described first dust trapping chamber (30) and second dust trapping chamber (31) in the mode around an end of described partition wall (32).
2. the idling Intaker controller of motor as claimed in claim 1 is characterized in that,
Form stepped part (34) between described reverse chamber (33) and second dust trapping chamber (31), this stepped part (34) makes the bottom surface of second dust trapping chamber (31) be higher than the bottom surface of reversing chamber (33).
3. the idling Intaker controller of motor as claimed in claim 1 or 2 is characterized in that,
Form described first dust trapping chamber (30), second dust trapping chamber (31) and reverse chamber (33) by mould-forming from a side of throttle body (T), the nib (35) that rises that will remain in a side of throttle body (T) with sealing bolt (36) seals.
4. the idling Intaker controller of motor as claimed in claim 3 is characterized in that,
Described catcher inlet opening (10) is opened in the bottom surface of described first dust trapping chamber (30).
5. the idling Intaker controller of motor as claimed in claim 4 is characterized in that,
Described catcher exit orifice (11) is opened in the inner side surface of described second dust trapping chamber (31), make the axis (Y2) of this catcher exit orifice (11) parallel, be provided with the valve opening (15) that is used to install described bypass valve (6) in mode with described catcher exit orifice (11) coaxial line (Y2) with the axis (Y1) of the valve stem (2a) of closure (2).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008073195A JP4879927B2 (en) | 2008-03-21 | 2008-03-21 | Engine idle intake control device |
| JP2008-073195 | 2008-03-21 | ||
| PCT/JP2009/054506 WO2009116424A1 (en) | 2008-03-21 | 2009-03-10 | Idle air intake control device of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101978148A true CN101978148A (en) | 2011-02-16 |
| CN101978148B CN101978148B (en) | 2013-06-19 |
Family
ID=41090829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801095133A Active CN101978148B (en) | 2008-03-21 | 2009-03-10 | Idle air intake control device of engine |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4879927B2 (en) |
| CN (1) | CN101978148B (en) |
| BR (1) | BRPI0908769A2 (en) |
| TW (1) | TWI343966B (en) |
| WO (1) | WO2009116424A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821623A (en) * | 2012-09-27 | 2014-05-28 | 万国引擎知识产权有限责任公司 | Methods for controlling engine idle speed |
| CN111226028A (en) * | 2018-01-26 | 2020-06-02 | 株式会社三国 | Throttle device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08182909A (en) * | 1994-12-28 | 1996-07-16 | Tsuchiya Mfg Co Ltd | Dust discharge device of air cleaner |
| JPH112170A (en) * | 1997-06-11 | 1999-01-06 | Nippon Soken Inc | Idle intake control device |
| JP2001115931A (en) * | 1999-10-19 | 2001-04-27 | Keihin Corp | Intake quantity control device for engine |
| JP2003049727A (en) * | 2001-08-06 | 2003-02-21 | Fuji Heavy Ind Ltd | Intake system for engine |
-
2008
- 2008-03-21 JP JP2008073195A patent/JP4879927B2/en not_active Expired - Fee Related
-
2009
- 2009-02-26 TW TW098106171A patent/TWI343966B/en not_active IP Right Cessation
- 2009-03-10 BR BRPI0908769-9A patent/BRPI0908769A2/en not_active Application Discontinuation
- 2009-03-10 CN CN2009801095133A patent/CN101978148B/en active Active
- 2009-03-10 WO PCT/JP2009/054506 patent/WO2009116424A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08182909A (en) * | 1994-12-28 | 1996-07-16 | Tsuchiya Mfg Co Ltd | Dust discharge device of air cleaner |
| JPH112170A (en) * | 1997-06-11 | 1999-01-06 | Nippon Soken Inc | Idle intake control device |
| JP2001115931A (en) * | 1999-10-19 | 2001-04-27 | Keihin Corp | Intake quantity control device for engine |
| JP2003049727A (en) * | 2001-08-06 | 2003-02-21 | Fuji Heavy Ind Ltd | Intake system for engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821623A (en) * | 2012-09-27 | 2014-05-28 | 万国引擎知识产权有限责任公司 | Methods for controlling engine idle speed |
| CN111226028A (en) * | 2018-01-26 | 2020-06-02 | 株式会社三国 | Throttle device |
| CN111226028B (en) * | 2018-01-26 | 2022-07-22 | 株式会社三国 | Throttling device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009228509A (en) | 2009-10-08 |
| TW200946769A (en) | 2009-11-16 |
| JP4879927B2 (en) | 2012-02-22 |
| WO2009116424A1 (en) | 2009-09-24 |
| TWI343966B (en) | 2011-06-21 |
| BRPI0908769A2 (en) | 2015-07-28 |
| CN101978148B (en) | 2013-06-19 |
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Effective date of registration: 20220107 Address after: Ibaraki Patentee after: Hitachi astemo Co.,Ltd. Address before: Tokyo, Japan Patentee before: KEIHIN Corp. |
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