CN100460661C - Air leakage reflux device of internal combustion engines - Google Patents
Air leakage reflux device of internal combustion engines Download PDFInfo
- Publication number
- CN100460661C CN100460661C CNB021075670A CN02107567A CN100460661C CN 100460661 C CN100460661 C CN 100460661C CN B021075670 A CNB021075670 A CN B021075670A CN 02107567 A CN02107567 A CN 02107567A CN 100460661 C CN100460661 C CN 100460661C
- Authority
- CN
- China
- Prior art keywords
- connecting tube
- internal
- combustion engine
- upstream
- gas
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0438—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a filter
Abstract
In an intake system of an internal combustion engine comprising a carburetor and an air cleaner disposed on the upstream side thereof which are connected to each other by a connecting tube, to simplify the structure of supporting a gas-liquid separation chamber of a blow-by gas recirculation means by the connecting tube and the structure of a communication passage between the connecting tube and the gas-liquid separation chamber. Two support portions 25 and 26 are provided integrally with a connecting tube TC for connection between an air cleaner AC and a carburetor CA, and one 25 of them is made to function also as a communication passage 25a for communication between the connecting tube TC and the gas-liquid separation chamber 29.
Description
Technical field
The present invention relates to vehicle at motor bike etc. and be used for making blow-by gas recirculation that internal combustion engine operation produces air leakage reflux device in the internal-combustion engine suction system to the internal-combustion engine of its suction system.
Background technique
In the suction system of motorcycle-use internal-combustion engine, the combustion engine crank case, with the air-breathing road of air generating apparatus (being vaporizer) upstream between be provided with the blow-by gas recirculation path that is communicated with their inside, make the blow-by gas recirculation that produces in the internal combustion engine operation process to suction system, make these gas leakage burning again in internal-combustion engine, cause pollution of atmosphere to suppress it to drain into atmosphere, this air leakage reflux device, from the past with regard to known (with reference to the real public clear 55-60438 communique of day patent).
In addition, in the motorcycle-use internal-combustion engine, in order to reach the simplification of suction system structure, compactness, cripeturaization etc., by connecting tube vaporizer and the air purifier unit that is disposed at its upstream are directly linked up, the blow-by gas recirculation path upstream portion that is communicated with internal-combustion engine gas leakage generating unit also is widely known by the people at the air leakage reflux device of its connecting tube upper shed.
But, in the air leakage reflux device of this internal-combustion engine, to being communicated with the access of air-strainer and vaporizer, at the supporting air leakage reflux device with air leakage reflux device outlet is communicated in aspect its access, proposed to simplify its supporting construction and be communicated with structure with it and simplify its supporting and be communicated with the requirement of operating.
Summary of the invention
Therefore main purpose of the present invention is to provide a kind of novel internal-combustion engine air leakage reflux device, in this device, connect air-strainer and vaporizer by the connecting tube that bends to the elbow shape along the fore-and-aft direction arranged in series, at its connecting tube upper support blow-by gas recirculation path upstream portion, make simultaneously in its current return circuit and the connecting tube and be communicated with, in such structure, can blow-by gas recirculation path upstream portion be supported on the outside curve wall of the crooked joint of connecting tube by simply constructed supporting construction at an easy rate; Can make simultaneously its support be also used as the access of connecting tube and blow-by gas recirculation path, to satisfy described requirement; In addition, in connecting tube, the gas leakage that can promote to flow in it can make certainization of air fuel ratio (A/F) with sucking Air mixing.
For achieving the above object, the internal-combustion engine air leakage reflux device that first technological scheme is recorded and narrated, to utilize air and fuel to generate the vaporizer of mixed gas, in the internal-combustion engine suction system that couples together by connecting tube with the air-strainer that is disposed at its upstream side, the upstream-side-end of described connecting tube forms curved shape, the upstream-side-end of this connecting tube is as a side that is connected with described air-strainer, it is characterized in that, outstanding integratedly a plurality of supports that the reflux that is used to support gas leakage is being set on the outside curve wall of described upstream-side-end outside, at least one of described support is in the described reflux of supporting, as the access that is communicated with connecting tube and reflux.According to this feature, can simplify the supporting construction and the access structure thereof to the air leakage reflux device upstream portion of connecting tube, owing to do not need the air leakage reflux device upstream portion is supported on other support members of connecting tube,, its supporting simplifies simultaneously so operating also.
In addition, for achieving the above object, the invention that second technological scheme is recorded and narrated is characterised in that in the device that first technological scheme is recorded and narrated, the reflux upstream portion is the gas-liquid separation chamber of gas leakage.As according to this feature, can simplify connecting tube to the supporting construction of air leakage reflux device gas-liquid separation chamber and the structure of access thereof; In addition, owing to do not need other support members that are held on the connecting tube are propped up in air leakage reflux device gas-liquid separation chamber, also can simplify its supporting operation.
Also have, for achieving the above object, being characterised in that of the invention that the 3rd technological scheme is recorded and narrated, in the device that first technological scheme is recorded and narrated, described connecting tube is made of elastomer, described a plurality of support and described connecting tube are integrally formed, with the direct yielding support of the upstream portion of reflux in these supports.As according to these features, can simplify the supporting construction and the access structure thereof to the air leakage reflux device upstream portion of connecting tube; In addition, owing to, do not need other support members, also can simplify its supporting operation only by connecting tube yielding support air leakage reflux device.
Moreover, the invention that the 4th technological scheme is recorded and narrated is characterised in that, in the device that above-mentioned three technological schemes are recorded and narrated, the opening end of the connecting tube side of described access forms and points to the upstream-side-end ground opening of described connecting tube along the internal face of described crooked joint outside curve wall.As according to this feature, except that can obtaining the same effect of device that technique scheme is recorded and narrated,, gas leakage sucks air velocity acceleration place in the connecting tube because being ejected into, thus can promote to suck air and mixing of leaking gas, and can make air than certainization.
Description of drawings
Fig. 1 is the motor bike unitary side view that is carrying the internal-combustion engine with air leakage reflux device of the present invention;
Fig. 2 is the side view of air leakage reflux device;
Fig. 3 is the 3-3 sectional view of Fig. 2;
Fig. 4 is the 4-4 sectional view of Fig. 2;
Fig. 5 is the 5-5 sectional view of Fig. 2;
Fig. 6 is the 6-6 sectional view of Fig. 3.
Embodiment
The following reference embodiment of the invention shown in the drawings illustrates example of the present invention.
Following embodiment, it is the situation that internal-combustion engine air leakage reflux device of the present invention is used in the internal-combustion engine of lift-launch on motor bike, in the following description, said " upper and lower " " left and right " and " forward and backward " all are that direct of travel with motor bike is as the criterion.
Fig. 1 is the motor bike unitary side view that has carried the internal-combustion engine with air leakage reflux device of the present invention; Fig. 2 is the air leakage reflux device side view; Fig. 3 is the 3-3 sectional view of Fig. 2; Fig. 4 is the 4-4 sectional view of Fig. 2; Fig. 5 is the 5-5 sectional view of Fig. 2; Fig. 6 is the 6-6 sectional view of Fig. 3.
In Fig. 1, but supporting front fork 2 to steering on the head pipe 1 of the framework of body F front end that constitutes the motor bike skeleton, axle is propping up front-wheel W in the lower end of this front fork 2
F, be provided with Joystick 3 in front fork 2 upper ends.And, trailing wheel W by posterior bumper 4 suspensions at framework of body F rear portion
R
Fore-and-aft direction intermediate portion at framework of body F is carrying the driver part UD with internal-combustion engine E, and the output shaft 5 of this driver part UD is linked to trailing wheel W by the chain drive interlock
ROn the framework of body F above the described driver part UD, carrying fuel tank T, and at trailing wheel W
RCarrying vehicle seat S on the framework of body F of top.
The cylinder portion 8 of described internal-combustion engine E is forward lean, is connecting the suction system IN with air leakage reflux device of the present invention on the intakeport 10 of its back opening; And on the relief opening 11 of its front openings, connecting vent systems EX.
Described suction system IN be by as the air-strainer AC series arrangement of the vaporizer CA, its upstream side that are connected in the air generating apparatus of described intakeport 10 in the fore-and-aft direction of framework of body F, and by the connecting tube TC that bends to the elbow shape they are linked up and to form.
Secondly, shown in Fig. 2～6, the filter case 13 of described air-strainer AC forms airtight hollow shape by enclosure body 13a and the lid 13b that seals its opening surface, and annular filter element 14 has been accommodated in its inside.The conformal member 14b that this filter element 14 is made of annular punched-plate twines and is affixed on annular porous foamed body 14a inner peripheral surface and constitutes.This filter element 14 is divided into filter case 13 contaminated side 15 clean side 16 inboard with it in its outside.On the inlet that is opened on filter case 13 rear walls, connecting air conduit 20, making contaminated side 15 be communicated with atmosphere by this air conduit 20.In addition, be that the intermediate portion of its lid 13b offers outlet 18 at a sidewall of filter case 13, in this outlet 18, cooperating connecting tube TC upstream-side-end dismantledly; Its outlet 18 is communicated with connecting tube TC; Be provided with the filter screen 21 that forms by punched-plate at its interconnecting part.
Described connecting tube TC is that rubber forms by elastomer; As Fig. 2, shown in Figure 4, its global shape is the elbow shape, and the upstream-side-end that its upstream-side-end promptly is connected to filter case 13 inlets 17 1 sides forms curved shape; Towards described vaporizer CA straight-line extension forwards, its end of downstream side is linked to the inlet of this vaporizer CA with linking belt 22 from here.
Described rubber system connecting tube TC upstream-side-end is provided with the support 24 that is used to support air leakage reflux device RB upstream portion.Promptly as Fig. 4, shown in Figure 5, front and back devices spaced apart one is given prominence to and is provided with first and second support 25,26 on the outside curve wall of rubber system connecting tube TC upstream-side-end.Described first support 25 forms open ended tubulose, and its inside has formed gas leakage access 25a; Described second support 26 is integrally formed the tailstock shape pinch hand 26c with annular groove 26b in hub-like solid projections portion 26a outer end.Described first and second support 25,26 has constituted the support 24 of described air leakage reflux device RB.
Described air leakage reflux device RB connects the inlet 29a that has constituted sealed mode gas-liquid separation chamber 29 in blow-by gas recirculation path 28 downstream, be provided with outlet 29b on the top of this gas-liquid separation chamber 29, give prominence in one side one again installation tongue piece 29c is being set, on this installation tongue piece 29c, leave patchhole 29d.Then, described outlet 29b is inserted first support 25; And the patchhole 29d of described installation tongue piece 29c is inserted the annular groove 26b of described second support 26, like this, can be with air leakage reflux device RB upstream portion, be the curved shape outside of gas-liquid separation chamber's 29 elasticity outside curve wall that can be supported on connecting tube TC with freely installing and removing; Simultaneously, can make its gas-liquid separation chamber 29 be communicated in connecting tube TC.Blow-by gas recirculation path 28 downstream are gas leakage tapping holes of internal-combustion engine E, connect in its crank box top.
Connecting tube TC end of downstream side is connected in the inlet of described vaporizer CA.Described vaporizer CA is owing to be now known structure, its detailed description of Therefore, omited.
Bottom illustrates the effect of present embodiment.At first when internal-combustion engine E turned round, because the intake negative-pressure that produces in its suction system IN, atmosphere sucked in the air-strainer AC from air conduit 20.Shown in Fig. 3～Fig. 5 arrow, the air that sucks in the air-strainer AC enters clean side 16 after contaminated side 15 is filtered through filter element 14, from passing through filter screen 21 here again after secondary filter, enter vaporizer CA through connecting tube TC, here the air of Sheng Chenging is inhaled into the firing chamber of internal-combustion engine E, makes internal-combustion engine E running.
And, entering gas-liquid separation chamber 29 through blow-by gas recirculation path 28 from its crank box by the gas leakage that internal-combustion engine E running generates, the blow-by gas recirculation of having isolated a shape fuel here is to connecting tube TC, from suction-type carburetor CA here.
Because the gas-liquid separation chamber of air leakage reflux device RB upstream portion is by outstanding 25,26 supportings of first and second support that are arranged at the crooked joint outside curve wall outside of rubber system connecting tube TC of one, and first support 25 also be also used as gas leakage access 25a, can make the supporting construction of connecting tube TC supporting air leakage reflux device RB and the structure of access 25a thereof simplify; And, can not need other support member ground simply to carry out air leakage reflux device is supported on the operation of connecting tube.Also have, because the opening end in the connecting tube TC of the gas leakage access 25a that is formed by first support 25 of connecting tube TC is along internal face while of its outside curve wall and make it point to its upstream, in connecting tube TC, suck air velocity quickening place ejection gas leakage, its result has promoted to suck mixing of air and gas leakage, can make the air than (A/F) certainization.
Embodiments of the invention more than have been described, but the present invention is not limited to these embodiments, within the scope of the invention various embodiments can be arranged.
Such as, in described embodiment, illustrated air leakage reflux device is implemented on motor-driven two-wheeled with on the internal-combustion engine, also can will be imposed on other for motor vehicle internal-combustion engines certainly, also can will be imposed on other for motor vehicle internal-combustion engines certainly; The outstanding air leakage reflux device support that is arranged on the connecting tube of one is to be made of first and second support in addition, but also can be made of the support more than 1～3, and at this moment, one of them is also used as the gas leakage access.
As above-mentioned, as invention according to first technological scheme, in the air leakage reflux device of internal-combustion engine, can simplify supporting construction and its access structure of connecting tube supporting air leakage reflux device upstream portion, simultaneously owing to only the air leakage reflux device upstream portion is supported on connecting tube, do not need other support members, simplified its supporting operation yet.
In addition, as the invention of recording and narrating according to second technological scheme, in the internal-combustion engine air leakage reflux device, can simplify the supporting construction and the access structure thereof to air leakage reflux device gas-liquid separation chamber of connecting tube; Owing to, do not need other support member, also make its supporting simplified control simultaneously for air leakage reflux device upstream portion gas-liquid separation chamber is supported on connecting tube.
As the invention of recording and narrating according to the 3rd technological scheme, in the internal-combustion engine air leakage reflux device, can simplify the yielding support structure and the access structure thereof to the air leakage reflux device upstream portion of connecting tube; Be simultaneously with air leakage reflux device upstream portion yielding support on connecting tube, do not need other support member, also make its supporting simplified control.
As the invention of recording and narrating according to the 4th technological scheme, in the internal-combustion engine air leakage reflux device, except that desirablely win, two, the three technological scheme effect same, also, gas leakage sucks air velocity acceleration place in the connecting tube because being ejected into, so can promote to suck mixing of air and gas leakage, and can make air than (A/F) certainization.
Claims (4)
1. internal-combustion engine air leakage reflux device, in the internal-combustion engine suction system that vaporizer (CA) that will utilize air and fuel generation mixed gas and the air-strainer (AC) that is disposed at its upstream side couple together by connecting tube (TC), the upstream-side-end of described connecting tube (TC) forms curved shape, the upstream-side-end of this connecting tube (TC) is as a side that is connected with described air-strainer (AC), it is characterized in that
Outstanding integratedly a plurality of supports (25,26) that the reflux (RB) that is used to support gas leakage is being set on the outside curve wall outside of described upstream-side-end, at least one of described support (25,26) is in the described reflux of supporting (RB), as the access (25a) that is communicated with connecting tube (TC) and reflux (RB).
2. internal-combustion engine air leakage reflux device as claimed in claim 1 is characterized in that, the upstream portion of described reflux (RB) is the gas-liquid separation chamber (29) of gas leakage.
3. by the described internal-combustion engine air leakage reflux device of claim 1, it is characterized in that, described connecting tube (TC) is made of elastomer, and described support (25,26) is integrally formed with described connecting tube, and described support (25,26) is the upstream portion of the described reflux of yielding support (RB) directly.
4. as claim 1,2 or 3 described internal-combustion engine air leakage reflux devices, it is characterized in that, the opening end of described connecting tube (TC) side of described access (25a), internal face along the outside curve wall of described crooked joint forms, and points to the described upstream-side-end ground opening of described connecting tube.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP086001/2001 | 2001-03-23 | ||
| JP2001086001A JP4041287B2 (en) | 2001-03-23 | 2001-03-23 | Blow-by gas recirculation device in an internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1376858A CN1376858A (en) | 2002-10-30 |
| CN100460661C true CN100460661C (en) | 2009-02-11 |
Family
ID=18941437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021075670A Expired - Fee Related CN100460661C (en) | 2001-03-23 | 2002-03-15 | Air leakage reflux device of internal combustion engines |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4041287B2 (en) |
| KR (1) | KR100404124B1 (en) |
| CN (1) | CN100460661C (en) |
| BR (1) | BR0200847B1 (en) |
| TW (1) | TW533269B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4121392B2 (en) * | 2003-02-17 | 2008-07-23 | 本田技研工業株式会社 | Motorcycle air cleaner equipment |
| US8752533B2 (en) * | 2011-02-11 | 2014-06-17 | Briggs & Stratton Corporation | Air filter assembly for an engine |
| JP6263279B2 (en) * | 2014-12-19 | 2018-01-24 | 本田技研工業株式会社 | Air cleaner device for vehicle |
| JP2018162760A (en) | 2017-03-27 | 2018-10-18 | 本田技研工業株式会社 | Intake passage structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5560438U (en) * | 1978-10-19 | 1980-04-24 | ||
| US5690084A (en) * | 1995-08-11 | 1997-11-25 | Honda Giken Kogyo Kabushiki Kaisha | Breather structure for blow-by gas in internal combustion engine |
| CN1171835A (en) * | 1994-11-03 | 1998-01-28 | 西门子电气有限公司 | Means and method for operating evaporative emission system leak detection pump |
| CN1184203A (en) * | 1996-11-29 | 1998-06-10 | 铃木株式会社 | Blow by gas-returning structure for engine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5337155Y2 (en) * | 1973-06-01 | 1978-09-08 | ||
| JPH0466310U (en) * | 1990-10-17 | 1992-06-11 | ||
| JP4364360B2 (en) * | 1999-09-05 | 2009-11-18 | 本田技研工業株式会社 | Blow-by gas reduction device |
-
2001
- 2001-03-23 JP JP2001086001A patent/JP4041287B2/en not_active Expired - Fee Related
-
2002
- 2002-03-14 KR KR10-2002-0013829A patent/KR100404124B1/en not_active IP Right Cessation
- 2002-03-15 CN CNB021075670A patent/CN100460661C/en not_active Expired - Fee Related
- 2002-03-18 TW TW091105043A patent/TW533269B/en active
- 2002-03-18 BR BRPI0200847-5A patent/BR0200847B1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5560438U (en) * | 1978-10-19 | 1980-04-24 | ||
| CN1171835A (en) * | 1994-11-03 | 1998-01-28 | 西门子电气有限公司 | Means and method for operating evaporative emission system leak detection pump |
| US5690084A (en) * | 1995-08-11 | 1997-11-25 | Honda Giken Kogyo Kabushiki Kaisha | Breather structure for blow-by gas in internal combustion engine |
| CN1184203A (en) * | 1996-11-29 | 1998-06-10 | 铃木株式会社 | Blow by gas-returning structure for engine |
Also Published As
| Publication number | Publication date |
|---|---|
| TW533269B (en) | 2003-05-21 |
| BR0200847B1 (en) | 2011-04-05 |
| JP4041287B2 (en) | 2008-01-30 |
| KR100404124B1 (en) | 2003-10-30 |
| CN1376858A (en) | 2002-10-30 |
| JP2002285816A (en) | 2002-10-03 |
| BR0200847A (en) | 2003-03-25 |
| KR20020081548A (en) | 2002-10-28 |
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Granted publication date: 20090211 Termination date: 20140315 |