CN100441853C - Built-in negative-pressure balancing air pump - Google Patents
Built-in negative-pressure balancing air pump Download PDFInfo
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- CN100441853C CN100441853C CNB2005101058956A CN200510105895A CN100441853C CN 100441853 C CN100441853 C CN 100441853C CN B2005101058956 A CNB2005101058956 A CN B2005101058956A CN 200510105895 A CN200510105895 A CN 200510105895A CN 100441853 C CN100441853 C CN 100441853C
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- negative
- air pump
- built
- valve
- pressure balancing
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Abstract
A built-in negative pressure balanced air pump comprises a vacuum diaphragm, a leaf valve, a vacuum chamber, a joint for connecting with a carburetor, a seal cover and a return spring between the seal cover and the vacuum diaphragm. It also includes a check valve consisting of a taper valve seat and a sealing cone valve and the check valve is in communication with the above vacuum chamber through a hollow connecting-rod.
Description
Technical field
The present invention relates to a kind of air pump, particularly a kind of built-in negative-pressure balancing air pump that is used for motorcycle engine secondary air inlet system.
Background technique
The present air pump structure that motorcycle engine adopted is generally a diaphragm valve and a leaf valve combines.The shortcoming of this structure is: because the operation of the operating mode of motor itself is the process of a complexity, motor is in moderating process, air-intake negative-pressure can raise suddenly, this moment, motor can suck too much fuel oil, this moment, motor was the process that a deceleration does not need a lot of power, too much fuel oil not only makes energy waste, and the discharging of engine exhaust increases, and causes the pollution of atmosphere; And when the descending constant-speed driving, if keep the speed of a motor vehicle constant, must turn down closure this moment gradually, degree of vacuum in the suction tude is inevitable like this increases gradually, when increasing to a certain degree, can cause motor can suck too much fuel oil, the discharging of engine exhaust is increased, cause pollution of atmosphere.
The main cause that the deceleration negative pressure generates is, the flowing velocity of gas is very big under the very big situation of throttle opening, when closure reduces suddenly, after a large amount of gas in front flows to cylinder head, gas flow behind the closure has only seldom a part of gas to flow through owing to be subjected to stopping of closure, this just forms a degree of vacuum in the place of closure, and this will force too much part oil to flow out from main jet so.And this a part of oil is unwanted, and this has just formed pollution sources, and the actual deceleration process has almost accounted for 1/3 of overall process.
The operating condition method test is exactly the experiment of the actual road conditions of simulation, and by actual measurement, the deceleration negative pressure is far longer than the constant speed negative pressure, and this explanation is quickened and moderating process is the main process that generates waste gas, the waste gas that is produced when it is far longer than constant speed.Therefore, the oil consumption when not being controlled at constant speed just because of the oil that is consumed when quickening and slow down causes engine exhaust emission and the pollution of atmosphere that causes.
Summary of the invention
The defective and the deficiency that the objective of the invention is to the air pump structure that adopts at above-mentioned existing motorcycle engine, a kind of built-in negative-pressure balancing air pump is provided, its induction part is utilized the built-in negative-pressure balancing structure, the eddy current that utilizes atmosphere to form when slowing down smashes elaioleucite, carry out the atomizing of fuel oil, sucking certain gas simultaneously when moderating process reduces the negative pressure of suction tude, thereby avoid when slowing down, sucking too much fuel oil, not only can save fuel oil, reduced the discharging of engine exhaust simultaneously, air conservation.
For achieving the above object, the invention provides a kind of built-in negative-pressure balancing air pump, it comprises a vacuum diaphragm and reed valve composition, described vacuum diaphragm top is provided with a vacuum chamber, it on it joint that connects carburetor vacuum, be provided with a return spring between one seal closure and the described vacuum diaphragm, wherein, described built-in negative-pressure balancing air pump also includes a conical valve seat and seals the one-way valve that cone valve is formed, and described one-way valve is by the connecting rod and the described vacuum chamber of a hollow.
The vacuum chamber of this built-in negative-pressure balancing air pump is by the described connecting rod of hollow and the cavity between described vacuum diaphragm and the described one-way valve, and the gas handling system of described one-way valve bottom is communicated with; Cavity one side joint between described vacuum diaphragm and the described one-way valve is provided with exhaust pipe combination.The sealing cone valve is fastened on the connecting rod.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technological scheme as can be known, adopt the structure of built-in negative-pressure balancing air pump of the present invention, the eddy current that utilizes atmosphere to form when slowing down smashes elaioleucite, carry out the atomizing of fuel oil, when moderating process, suck certain gas simultaneously the negative pressure of suction tude is reduced, not only compact structure, easy to assembly, practical, saving cost, and avoid when slowing down, sucking too much fuel oil, can save fuel oil, reduce the discharging of engine exhaust simultaneously, air conservation.
Below, also the present invention is described in further detail in conjunction with the accompanying drawings by specific embodiment.
Description of drawings
Fig. 1 is the structural representation of built-in negative-pressure balancing air pump of the present invention;
Figure 2 shows that the partial enlarged drawing and the sectional drawing of the conical valve seat among Fig. 1.
Among the figure:
1, connects the joint of carburetor vacuum; 2, vacuum diaphragm; 3, return spring;
4, connecting rod; 5, seal closure; 6, conical valve seat;
7, sealing cone valve; 8, vacuum chamber; 9, reed valve;
10, leaf valve backplate; 11, exhaust pipe combination; 12, air pump body.
Embodiment
Consult Fig. 1 and Fig. 2, Fig. 1 is the structural representation of built-in negative-pressure balancing air pump of the present invention, Figure 2 shows that the partial enlarged drawing of the conical valve seat among Fig. 1.This built-in negative-pressure balancing air pump is made up of a vacuum diaphragm 2 and a reed valve 9, described vacuum diaphragm 2 tops are provided with a vacuum chamber 8, for connecing the joint 1 of carburetor vacuum, form a degree of vacuum in the middle of making on it, be provided with a return spring 3 between a seal closure 5 and the described vacuum diaphragm 2; Wherein, referring to Fig. 2, described built-in negative-pressure balancing air pump also includes a one that a conical valve seat 6 and sealing cone valve 7 formed and is fastened on one-way valve on the connecting rod 4, and described one-way valve is communicated with described vacuum chamber 8 by the connecting rod 4 of hollow.Vacuum chamber 8 is by the described connecting rod 4 of hollow and the cavity between described vacuum diaphragm 2 and the described one-way valve, and the connection of the gas handling system of described one-way valve bottom, and cavity one side joint between described vacuum diaphragm 2 and the described one-way valve is provided with exhaust pipe combination 11.
Return spring 3 in this structure at first has certain pretightening force, when throttle opening rising or rotating speed rising, degree of vacuum constantly increases, and the joint 1 and the closure vacuum that connect carburetor vacuum communicate, when reaching X1 MPa, degree of vacuum can overcome the pretightening force of return spring 3, and vacuum diaphragm 2 is moved up together with connecting rod 4, one-way valve is opened gradually, make gas through the gap between tapered valve seat 6 and the sealing cone valve 7, enter the connecting rod 4 of hollow, connecting rod 4 from hollow enters vacuum chamber 8 again, is entered suction tude.When degree of vacuum reached X2 Mpa, vacuum diaphragm 2 played the extreme higher position together with connecting rod 4 one, the one-way valve standard-sized sheet, and seal closure 5 contacts with the one-way valve body fully, and reed valve 9 no longer works, and atmosphere can not enter flue gas leading.The gas of this moment directly enters suction tude from the connecting rod 4 of hollow, and the balance air-intake negative-pressure makes negative pressure reduce, and when being reduced to a certain degree, seal closure 5 falls the pipeline that reseals the negative-pressure balancing plate to one-way valve after rise, makes gas lead to flue gas leading.This kind air pump is unlikely to when negative pressure is too high to suck too much fuel oil, has saved fuel oil effectively, has also solved because of the deceleration negative pressure too highly simultaneously, and the fuel oil that sucks is discharged a large amount of waste gas and secondary air inlet system and sprayed into a large amount of O after through burning
2Enter silencing apparatus and mix the back flash fire, the explosive sound that is produced is promptly blown out phenomenon, can save certain fuel oil again simultaneously.This one-way valve makes the intake pipe negative pressure of motor be stabilized in same value always, can not suck too much oil.
The principle that the present invention improves main foundation is, air pump of the prior art is not with the negative-pressure balancing one-way valve, when engine retard, negative pressure rising diaphragm valve overcomes initial tension of spring under suction function, seal closure is upwards mentioned makes the gas that enters air outlet flue reduce, and this moment, motor increased owing to negative pressure, suck too much fuel oil, if return spring is return in time, will cause the large quantity of exhaust gas of motor and the ozone situation in the silencing apparatus flash fire so, this just might cause the silencing apparatus of motor to form the sound of detonation.And if the timely return of return spring, live gas can not enter air outlet flue, the discharge amount of exhaust gas of motor just can not be controlled effectively when slowing down so.Through increase on the air pump after improvement one can the balance air-intake negative-pressure one-way valve, when motor is slowing down, negative pressure rising diaphragm valve overcomes initial tension of spring under suction function, seal closure is upwards mentioned makes the gas that enters air pump reduce, tapered valve and seal closure are upwards mentioned simultaneously simultaneously, make a part of air enter suction tude through the passage of balance plate, make air-intake negative-pressure in time reduce, too much fuel oil can not proposed when slowing down, air and the original air of air duct that enters air duct from balance plate forms powerful eddy current simultaneously, promote the further atomizing of fuel oil in the suction tude to make that burning is more abundant, discharging is effectively reduced, and makes fuel more economically simultaneously.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, but every technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (3)
1, a kind of built-in negative-pressure balancing air pump, comprise a vacuum diaphragm (2) and a reed valve (9), described vacuum diaphragm (2) top is provided with a vacuum chamber (8), it on it joint (1) that connects carburetor vacuum, be provided with a return spring (3) between one seal closure (5) and the described vacuum diaphragm (2), it is characterized in that; Described built-in negative-pressure balancing air pump also includes a conical valve seat (6) and seals the one-way valve that cone valve (7) is formed, and described one-way valve is communicated with described vacuum chamber (8) by connecting rod (4), and wherein said connecting rod (4) is a hollow.
2, built-in negative-pressure balancing air pump according to claim 1, it is characterized in that: described vacuum chamber (8) is by the described connecting rod (4) of hollow and the cavity between described vacuum diaphragm (2) and the described one-way valve, and the connection of the gas handling system of described one-way valve bottom, cavity one side joint between described vacuum diaphragm (2) and the described one-way valve is provided with exhaust pipe combination (11).
3, built-in negative-pressure balancing air pump according to claim 1 is characterized in that: described sealing cone valve (7) is fastened on the connecting rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101058956A CN100441853C (en) | 2005-09-29 | 2005-09-29 | Built-in negative-pressure balancing air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101058956A CN100441853C (en) | 2005-09-29 | 2005-09-29 | Built-in negative-pressure balancing air pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1940279A CN1940279A (en) | 2007-04-04 |
| CN100441853C true CN100441853C (en) | 2008-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101058956A Expired - Fee Related CN100441853C (en) | 2005-09-29 | 2005-09-29 | Built-in negative-pressure balancing air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100441853C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405540A (en) * | 2014-10-24 | 2015-03-11 | 重庆市合川区邓健萍摩托车配件加工厂 | Environment-friendly motorbike with low content of pollutant gas in tail gas |
| CN110131585A (en) * | 2019-05-31 | 2019-08-16 | 江苏仅一联合智造有限公司 | A kind of milk powder filling production equipment big flow multiple-limb negative pressure control apparatus |
| CN110552206A (en) * | 2019-09-20 | 2019-12-10 | 浙江肯特科技股份有限公司 | Hydrophobic fabric manufacturing system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2029551A (en) * | 1978-09-01 | 1980-03-19 | Fram Ltd Canada | Deceleration valve |
| CN86206090U (en) * | 1986-08-16 | 1987-06-17 | 陕西省煤炭建设公司建筑材料厂 | Fuel-saving device of the carburetter in petrol vehicle |
| CN2566006Y (en) * | 2002-08-13 | 2003-08-13 | 厦门信源交通器材有限公司 | Improved secondary air control valve for motorcycle |
| CN2737970Y (en) * | 2004-10-26 | 2005-11-02 | 厦门信源交通器材有限公司 | Secondary air control valve and one-way valve integrated structure for engine |
| CN2841988Y (en) * | 2005-09-29 | 2006-11-29 | 重庆宗申技术开发研究有限公司 | Built-in negative pressure balance air pump |
-
2005
- 2005-09-29 CN CNB2005101058956A patent/CN100441853C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2029551A (en) * | 1978-09-01 | 1980-03-19 | Fram Ltd Canada | Deceleration valve |
| CN86206090U (en) * | 1986-08-16 | 1987-06-17 | 陕西省煤炭建设公司建筑材料厂 | Fuel-saving device of the carburetter in petrol vehicle |
| CN2566006Y (en) * | 2002-08-13 | 2003-08-13 | 厦门信源交通器材有限公司 | Improved secondary air control valve for motorcycle |
| CN2737970Y (en) * | 2004-10-26 | 2005-11-02 | 厦门信源交通器材有限公司 | Secondary air control valve and one-way valve integrated structure for engine |
| CN2841988Y (en) * | 2005-09-29 | 2006-11-29 | 重庆宗申技术开发研究有限公司 | Built-in negative pressure balance air pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1940279A (en) | 2007-04-04 |
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Owner name: ZHEJIANG LINYA CRAFTWORK CO., LTD. Free format text: FORMER OWNER: ZHAO NIANGAO Effective date: 20101102 |
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Free format text: CORRECT: ADDRESS; FROM: 317005 ZHEJIANG LINYA CRAFTWORK CO., LTD., NO.375-1, CHUANJIN ROAD, DONGCHENG TOWN, LINHAI CITY, ZHEJIANG PROVINCE TO: 317005 ZHONGJIE VILLAGE, DONGCHENG TOWN, LINHAI CITY, ZHEJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20101108 Address after: 400054 Banan District, Chongqing City Industrial Park Patentee after: CHONGQING ZONGSHEN ENGINE MANUFACTURING Co.,Ltd. Address before: 400039, No. 25 Erlang Road, Chongqing hi tech Development Zone, Shiqiaopu Patentee before: Chongqing Zongshen Technology Development and Research Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |