CN101798970B - Starting device for enriching-valve type carburetor - Google Patents
Starting device for enriching-valve type carburetor Download PDFInfo
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- CN101798970B CN101798970B CN 201010152184 CN201010152184A CN101798970B CN 101798970 B CN101798970 B CN 101798970B CN 201010152184 CN201010152184 CN 201010152184 CN 201010152184 A CN201010152184 A CN 201010152184A CN 101798970 B CN101798970 B CN 101798970B
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- Prior art keywords
- enriching
- valve
- starting
- type carburetor
- valve type
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- 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
- F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
- F02M1/04—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being auxiliary carburetting apparatus able to be put into, and out of, operation, e.g. having automatically-operated disc valves
- F02M1/046—Auxiliary carburetting apparatus controlled by piston valves
Abstract
The invention discloses a starting device for an enriching-valve type carburetor, comprising an enriching valve which is arranged on the enriching-valve type carburetor. A control valve is arranged on the enriching valve; a starting plunger and an oil needle are arranged on the control valve and are respectively inserted in a plunger cavity of the enriching valve and an enriching oil supplying channel; the starting plunger and the oil needle can move along the axis of the plunger cavity of the enriching valve and the enriching oil supplying channel; and a gas inlet and an mixed gas outlet are arranged on the plunger cavity of the enriching valve, wherein the gas inlet is directly communicated with the air through a channel except an engine gas inlet system, With the design, the starting device can start the motorcycle in the high-temperature environment, thereby effectively solving the problem that the motorcycle is difficult to start in the high-temperature environment. The starting device can be matched with the system without being affected in the starting performance in the high-temperature environment, and the starting device can be widely applied to the enriching-valve type carburetor.
Description
Technical field
The present invention relates to a kind of Carburetor starting arrangement, especially a kind of motorcycle starting arrangement of enriching-valve type carburetor.
Background technique
At present, the upgrading valve of Carburetor starting system is to get gas in the engine aspirating system pipeline, mix with the fuel oil of oil supply gallery in the upgrading valve body, when starting cold for motor provides denseer mixed gas, so that cold car can start smoothly.A kind of existing structure is: the upgrading valve body is set on the Carburetor body, on the upgrading valve body electronic valve is housed, electronic valve is provided with the spindle of starting plunger and starting plunger lower end, starting plunger and spindle coaxial line, starting plunger and spindle are pegged graft respectively in the plunger cavity 21 of upgrading valve body 2 and the enriching oil supply gallery 22 with reference to shown in Figure 7, described plunger cavity 21 is provided with suction port 23 and mixed gas outlet 24, suction port 23 is communicated with air-inlet cavity 26, starting plunger and spindle can move along the axis of plunger cavity 21 and enriching oil supply gallery 22, thereby open or close the enriching oil supply gallery and the air flue of upgrading valve 2.Suction port 23 communicates by the mixing chamber of the trunnion front end on air-inlet cavity 26 and the vent cap that links to each other with this chamber and the Carburetor body, in the engine aspirating system pipeline, get gas, thereby on upgrading valve and Carburetor body, need to process the vent cap that communicates with the gas handling system pipeline; For machining suction port 23 on plunger cavity 21, must be earlier on upgrading valve 2 outer walls the coaxial auxiliary hole 25 of one of processing and suction port 23, auxiliary hole 25 is air-inlet cavity 26 connections, suction port 23 machines add finish after, again with filling in part 27, so make comparatively complicated with auxiliary hole 25 shutoff.Because the upgrading valve of existing Carburetor starting system is got gas in the engine aspirating system pipeline, caused major defect: when parking or ambient temperature are higher after the motorcycle work, the thermal radiation meeting makes in the Carburetor and the gasoline on the intake duct wall is evaporated, because the engine aspirating system pipeline is difficult for distributing than the long oil steam, thereby remains in the air inlet pipeline; Electronic valve no electric circuit after stopping, the cooling of PTC heater, paraffin shrinks, and the starting plunger promotes and makes starting upgraded oil circuit and airway open, and denseer mixed gas also is provided when starting; The charcoal jar of adding EVAP Evaporative System under the hot environment also adsorbs more oily vapours, can make the oily vapours desorption in the charcoal jar during engine start under the effect of negative pressure, also can cause mixed gas to thicken; Under above Several Factors effect, mixed gas overrich when causing engine start can't normal starting.
At the problem of confession mixed gas overrich, have four kinds of solutions at present, but defectiveness all is respectively:
Open the throttle when 1. starting, suck fresh air more, make air fuel ratio maintain flammable range; But this operation is dangerous, may cause life risk to the user.
2. Carburetor adopts two atmospheric equilibrium pipes, and the oil vapor in the Carburetor directly is evaporated in the atmosphere, does not enter in the gas handling system pipeline; But want corresponding fuel evaporation Abgasgesetz at present, direct if the oil vapor in the Carburetor directly is evaporated in the atmosphere, the fuel evaporation Abgasgesetz is difficult to up to standard like this.
3. perforate on the gas handling system pipeline distributes oil vapor, but unfavorable to dust-fast, water-fast, the anti-mud of engine charge, fuel evaporation Abgasgesetz etc.
4. the setting of Carburetor upgrading valve is rarer partially, but cold starting performance is bad.
Thereby also do not have a kind of can be really the effective technological scheme of head it off.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of simple in structure, good reliability, Carburetor is changed the enriching-valve type carburetor starting arrangement little, that cost is low, it starts easily motor under hot environment, do not influence the cold starting performance of motor simultaneously again.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of starting arrangement of enriching-valve type carburetor, comprise the upgrading valve that is arranged on the Carburetor body, control valve is housed on the upgrading valve, control valve is provided with starting plunger and spindle, described starting plunger and spindle are pegged graft in the plunger cavity of upgrading valve body and the enriching oil supply gallery respectively and can be moved along its axis, described plunger cavity is provided with suction port and mixed gas outlet, and described suction port directly is communicated with atmosphere by the passage beyond the engine aspirating system.
Further, described engine aspirating system comprises: Carburetor, engine inlets, air intake branch of the engine or empty filter assembly.
Further, simple in structure for making, described suction port directly communicates with atmosphere with passage beyond the engine aspirating system by the intrinsic air flue of described upgrading valve and the rubber pipe that joins with it.
Further, described upgrading valve body is provided with auxiliary hole coaxial with suction port and that communicate with it, and this auxiliary hole stretches in the vehicle frame pipe pipe by rubber pipe, and starting system is got gas in the vehicle frame pipe, dustproof and waterproof; Utilize original auxiliary hole passage, upgrading valve is changed little, and processing is few.Described vehicle frame pipe is provided with inlet hole and osculum.
As another kind of mode of execution, the auxiliary hole of above-mentioned upgrading valve suction port is connected with independent empty filter by rubber pipe, and starting system is got gas in independent empty filter.
As further improvement, be plugged with connecting tube on the described auxiliary hole and be connected with rubber pipe; Described control valve is an electronic valve.
The invention has the beneficial effects as follows: because the upgrading valve suction port is directly to be communicated with atmosphere by the path beyond the engine aspirating system, starting system enters fresh air when making the motorcycle starting, thereby can not cause the starting mixture overrich because of the oil vapor that sucks in the gas handling system, cause and to start smoothly, after this scheme improvement, motorcycle also can start smoothly under hot environment, this design efficiently solves motorcycle hot environment starting difficulty problem, by not influencing cold starting performance after the system matches again, make and to be widely used on the enriching-valve type carburetor.In addition,, need not stop up auxiliary hole yet, simplify processing technology, reduce cost of production owing to need on upgrading valve and Carburetor body, not process the vent cap that communicates with the gas handling system pipeline.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is an enriching-valve type carburetor structural representation of the present invention;
Fig. 2 is a upgrading valve structural representation of the present invention;
Fig. 3 is a starting arrangement structural representation of the present invention;
Fig. 4 is the schematic representation of one embodiment of the present invention;
Fig. 5 is the schematic representation of another embodiment of the present invention;
Fig. 6 is the start-up parameters comparison diagram of the present invention and existing product;
Fig. 7 is the structural representation of existing upgrading valve.
Embodiment
With reference to Fig. 1, Fig. 2, Fig. 3, a kind of starting arrangement of enriching-valve type carburetor, comprise the upgrading valve body 2 that is arranged on the Carburetor body 1, control valve 3 is housed on the upgrading valve body 2, this control valve 3 is electronic valve preferably, certainly, it also can be mechanical valve, it is provided with starting plunger 31 and spindle 32, described starting plunger 31 and spindle 32 insert in the plunger cavity 21 of upgrading valve body 2 and the enriching oil supply gallery 22 respectively and can move along its axis, described plunger cavity 21 is provided with suction port 23 and mixed gas outlet 24, described suction port 23 directly is communicated with atmosphere by the passage beyond the engine aspirating system, described engine aspirating system is a Carburetor, engine inlets, air intake branch of the engine and empty filter assembly etc., this design make to add at the Carburetor body need not process the vent cap that communicates with the gas handling system pipeline man-hour.In addition, because suction port 23 adds man-hour on upgrading valve body 2, must produce a coaxial with it auxiliary hole 25 on its surface, this design utilizes original auxiliary hole passage, and it is little to make upgrading valve change, and processing is few, structure is more simple, and it is more easy to make, and cost reduces.
The described suction port 23 of this product communicates with atmosphere by air flue in the described upgrading valve body 2 and the rubber pipe 4 that joins with it, its Placement is as follows: with reference to Fig. 4, be dustproof and waterproof, described auxiliary hole 25 stretches in vehicle frame pipe 5 pipes by rubber pipe 4, according to actual needs, can be provided with blowhole 51 and osculum 52 by described vehicle frame pipe 5; With reference to Fig. 5, described auxiliary hole 25 is connected with independent empty filter 6 by rubber pipe 4, and independent empty filter 6 can be fixed on the vehicle frame by mounting bracket.This product is connected with rubber pipe 4 for the ease of auxiliary hole 25, is plugged with connecting tube 28 on the described auxiliary hole 25, the other end of rubber pipe 4 socket connection pipes 28.Certainly; also be not limited to above-mentioned technological scheme in the reality; also can adopt other common Connecting format; the suction port that needs only in a word based on the Carburetor upgrading valve reaches technique effect of the present invention by the means that the passage beyond the engine aspirating system directly communicates with atmosphere, all should belong to protection scope of the present invention.
As shown in Figure 6, this test is that car load is tested after static 12 hours in 45 ° hot cell, what horizontal axis was represented in the chart is the test time, what the vertical shaft on the left side was represented is air fuel ratio, what the vertical shaft on the right was represented is the revolution of motor, as we can see from the figure, because the mixed gas overrich, existing product could start through sparking repeatedly; And the product after improving, because air fuel ratio is in the reasonable scope, mixture strength is moderate, product is once struck sparks and just can be started smoothly, thereby effectively solves the problem of starting difficulty under the motorcycle hot environment.
The embodiment of the invention is work like this: after the parking, electronic valve 3 no electric circuits, its PTC heater cooling, paraffin shrinks, and starting plunger 31 and spindle 32 promote, and make starting upgraded oil circuit and airway open, fresh air beyond the engine aspirating system enters plunger cavity 21 by auxiliary hole 25, suction port 23, enriching oil supply gallery 22 is fuel-displaced, and mixed gas offers motor by mixed gas outlet 24, and motor is started smoothly; Electronic valve body 2 energisings after the engine start, its PTC heater heats up, and paraffin expands, and starting plunger 31 and spindle 32 fall, and close Carburetor starting system oil circuit and air flue.Because what the Carburetor starting system entered during the motorcycle starting is fresh air, thereby can not cause the starting mixture overrich because of the oil vapor that sucks in the air inlet pipeline, cause and to start smoothly, after this scheme improvement, motorcycle also can start smoothly under hot environment, this design effectively solves motorcycle high-temperature start-up difficult problem, by not influencing cold starting performance after the system matches again, makes and can be widely used on the enriching-valve type carburetor.
Claims (8)
1. the starting arrangement of an enriching-valve type carburetor, comprise the upgrading valve body (2) that is arranged on the Carburetor body (1), control valve (3) is housed on the upgrading valve body (2), control valve (3) is provided with starting plunger (31) and spindle (32), described starting plunger (31) and spindle (32) insert in the plunger cavity (21) of upgrading valve body (2) and the enriching system oil supply gallery (22) respectively and can move along its axis, described plunger cavity (21) is provided with suction port (23) and mixed gas outlet (24), it is characterized in that: described suction port (23) directly is communicated with atmosphere by the passage beyond the engine aspirating system, enters fresh air during work.
2. the starting arrangement of a kind of enriching-valve type carburetor according to claim 1, it is characterized in that: described engine aspirating system comprises Carburetor, engine inlets, air intake branch of the engine and empty filter assembly.
3. the starting arrangement of a kind of enriching-valve type carburetor according to claim 1 is characterized in that: described suction port (23) communicates with engine aspirating system atmosphere in addition by air flue in the described upgrading valve body (2) and the rubber pipe (4) that joins with it.
4. the starting arrangement of a kind of enriching-valve type carburetor according to claim 3, it is characterized in that: described upgrading valve body (2) is provided with auxiliary hole (25) coaxial with suction port (23) and that communicate with it, and this auxiliary hole (25) stretches in vehicle frame pipe (5) pipe by rubber pipe (4).
5. the starting arrangement of a kind of enriching-valve type carburetor according to claim 4, it is characterized in that: described vehicle frame pipe (5) is provided with blowhole (51) and osculum (52).
6. the starting arrangement of a kind of enriching-valve type carburetor according to claim 3, it is characterized in that: described upgrading valve body (2) is provided with auxiliary hole (25) coaxial with suction port (23) and that communicate with it, and this auxiliary hole (25) is connected with independent empty filter (6) by rubber pipe (4).
7. according to the starting arrangement of claim 4 or 6 described a kind of enriching-valve type carburetors, it is characterized in that: be plugged with connecting tube (28) on the described auxiliary hole (25) and be connected with rubber pipe (4).
8. the starting arrangement of a kind of enriching-valve type carburetor according to claim 1, it is characterized in that: described control valve (3) is an electronic valve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010152184 CN101798970B (en) | 2010-04-21 | 2010-04-21 | Starting device for enriching-valve type carburetor |
| PCT/CN2011/073085 WO2011131131A1 (en) | 2010-04-21 | 2011-04-20 | Starting device for enriching-valve type carburetor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010152184 CN101798970B (en) | 2010-04-21 | 2010-04-21 | Starting device for enriching-valve type carburetor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101798970A CN101798970A (en) | 2010-08-11 |
| CN101798970B true CN101798970B (en) | 2011-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010152184 Active CN101798970B (en) | 2010-04-21 | 2010-04-21 | Starting device for enriching-valve type carburetor |
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| CN (1) | CN101798970B (en) |
| WO (1) | WO2011131131A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798970B (en) * | 2010-04-21 | 2011-08-24 | 江门市大长江集团有限公司 | Starting device for enriching-valve type carburetor |
| CN101979863A (en) * | 2010-12-03 | 2011-02-23 | 成都恒高机械电子有限公司 | Sealing structure of large-displacement motorcycle carburetor starting system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201671726U (en) * | 2010-04-21 | 2010-12-15 | 江门市大长江集团有限公司 | Starting device of enrichment valve type carburetor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0240062A (en) * | 1988-07-29 | 1990-02-08 | Yamaha Motor Co Ltd | Carburetor |
| CN2363072Y (en) * | 1998-10-23 | 2000-02-09 | 财团法人工业技术研究院 | Heat wax-melting cool starting valve |
| DE10163805A1 (en) * | 2001-12-22 | 2003-07-03 | Stihl Maschf Andreas | Carburetor arrangement for an internal combustion engine of a hand-held implement |
| CN2729343Y (en) * | 2004-08-10 | 2005-09-28 | 王品强 | Universal carburetor for gasoline engine |
| JP2007177758A (en) * | 2005-12-28 | 2007-07-12 | Komatsu Zenoah Co | Carburetor |
| US7490584B1 (en) * | 2006-12-15 | 2009-02-17 | Brunswick Corporation | Fuel enrichment cold start/run circuit |
| CN201170142Y (en) * | 2007-06-21 | 2008-12-24 | 陈俭敏 | Carburetor start-up enrichment device and carburetor having the same |
| CN101798970B (en) * | 2010-04-21 | 2011-08-24 | 江门市大长江集团有限公司 | Starting device for enriching-valve type carburetor |
-
2010
- 2010-04-21 CN CN 201010152184 patent/CN101798970B/en active Active
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2011
- 2011-04-20 WO PCT/CN2011/073085 patent/WO2011131131A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201671726U (en) * | 2010-04-21 | 2010-12-15 | 江门市大长江集团有限公司 | Starting device of enrichment valve type carburetor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011131131A1 (en) | 2011-10-27 |
| CN101798970A (en) | 2010-08-11 |
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