CN2841988Y - Built-in negative pressure balance air pump - Google Patents
Built-in negative pressure balance air pump Download PDFInfo
- Publication number
- CN2841988Y CN2841988Y CN 200520127079 CN200520127079U CN2841988Y CN 2841988 Y CN2841988 Y CN 2841988Y CN 200520127079 CN200520127079 CN 200520127079 CN 200520127079 U CN200520127079 U CN 200520127079U CN 2841988 Y CN2841988 Y CN 2841988Y
- Authority
- CN
- China
- Prior art keywords
- air pump
- built
- way valve
- valve
- vacuum
- 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
Links
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a built-in negative pressure balancing air pump comprising a vacuum film piece (2) and a reed valve (9). The upper part of the vacuum film piece (2) is provided with a vacuum chamber (8). The upper part of the vacuum chamber (8) is connected with a vacuum connector (1) of a carburetor. A return spring (3) is arranged between a sealing hood (5) and the vacuum film piece (2), wherein the built-in negative pressure balancing air pump also comprises a one-way valve which is composed of a cone-shaped valve seat (6) and a sealing cone valve (7). The one-way valve is communicated with the vacuum chamber (8) through a hollow connecting rod (4). Because the structure of the built-in negative pressure balancing air pump of the utility model is adopted, the utility model has the advantages of compact structure, convenient assemblage, strong practicability and low cost. Excessive fuel oil can be avoided imbibing when the utility model decelerates, so fuel oil can be saved and simultaneously discharge of exhaust gas of engines is lowered to prevent polluting the air.
Description
Technical field
The utility model 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.
The model utility content
The purpose of this utility model is the defective and the deficiency of 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 utility model 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 one-way valve one that conical valve seat and sealing cone valve are formed is fastened on the connecting rod.
The utility model 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 utility model, 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 in conjunction with the accompanying drawings the utility model is described in further detail by specific embodiment.
Description of drawings
Fig. 1 is the structural representation of built-in negative-pressure balancing air pump of the present utility model;
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 utility model, 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 utility model 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 utility model, be not that the utility model 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 solutions of the utility model content that do not break away from,, all still belong in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present utility model.
Claims (4)
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, 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 and 2 is characterized in that: the one-way valve that described conical valve seat (6) and sealing cone valve (7) are formed is an one.
4, built-in negative-pressure balancing air pump according to claim 3 is characterized in that: described one-way valve is fastened on the connecting rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520127079 CN2841988Y (en) | 2005-09-29 | 2005-09-29 | Built-in negative pressure balance air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520127079 CN2841988Y (en) | 2005-09-29 | 2005-09-29 | Built-in negative pressure balance air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2841988Y true CN2841988Y (en) | 2006-11-29 |
Family
ID=37445874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520127079 Expired - Fee Related CN2841988Y (en) | 2005-09-29 | 2005-09-29 | Built-in negative pressure balance air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2841988Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441853C (en) * | 2005-09-29 | 2008-12-10 | 重庆宗申技术开发研究有限公司 | Built-in negative-pressure balancing air pump |
-
2005
- 2005-09-29 CN CN 200520127079 patent/CN2841988Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441853C (en) * | 2005-09-29 | 2008-12-10 | 重庆宗申技术开发研究有限公司 | Built-in negative-pressure balancing air pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201162590Y (en) | Supercharging and compensating gear of engine | |
| CN205532781U (en) | Ventilation system of adjustable crankcase pressure | |
| CN100441853C (en) | Built-in negative-pressure balancing air pump | |
| CN2841988Y (en) | Built-in negative pressure balance air pump | |
| CN2804406Y (en) | Pressure variable oxygen producing burning aid for turbocharged engine | |
| JPS5929726A (en) | Controller for turbocharger of engine | |
| CN101545411B (en) | Boosting compensation device of engine | |
| CN201037438Y (en) | Electric control carburetor | |
| CN2846765Y (en) | Air inlet path for diesel engine | |
| CN2866869Y (en) | Diaphragm secondary additional air supply valve for gasoline engine | |
| CN202250467U (en) | Fuel saving device for controlling opening/closing of atmosphere balance hole of carburetor | |
| CN208473993U (en) | A kind of turbo charge system based on Venturi tube | |
| CN203717113U (en) | Exhaust turbine pressure increasing delay compensation device | |
| CN202300634U (en) | Fuel-saving device of automobile | |
| CN202441517U (en) | Air filter utilizing wind resistance to boost pressure | |
| CN2864112Y (en) | Complex air pump | |
| CN202381196U (en) | Environmentally-friendly oil saver for internal combustion engine | |
| CN2660146Y (en) | Energy saving carburetor of motorcycle | |
| CN205370799U (en) | A valve for diesel exhaust recycling | |
| CN100422517C (en) | Compound air pump | |
| CN2695664Y (en) | Oil-saving device of electric engine | |
| CN2308718Y (en) | High efficiency I. C. engine | |
| CN2220538Y (en) | Crankcase vacuum controlled blowing air leak recovery device | |
| CN219587658U (en) | Novel electronic injection throttle valve | |
| CN2576987Y (en) | Engine air-intake venturi apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING ZONGSHEN ENGINE MANUFACTURING CO. Free format text: FORMER OWNER: CHONGQING ZONGSHEN TECHNOLOGY DEVELOPMENT + RESEARCH CO., LTD. Effective date: 20071221 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071221 Address after: Shen Shen industrial park, Banan District, Chongqing, China: 400054 Patentee after: Chongqing Zongshen Engine Manufacturing Co., Ltd. Address before: No. 25 Erlang Road, Chongqing hi tech Development Zone, Shiqiaopu, 400039 Patentee before: Chongqing Zongshen Technology Development & Research Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061129 Termination date: 20130929 |