CN2512912Y - Multiple air valve air charging mechanism - Google Patents
Multiple air valve air charging mechanism Download PDFInfo
- Publication number
- CN2512912Y CN2512912Y CN01264671U CN01264671U CN2512912Y CN 2512912 Y CN2512912 Y CN 2512912Y CN 01264671 U CN01264671 U CN 01264671U CN 01264671 U CN01264671 U CN 01264671U CN 2512912 Y CN2512912 Y CN 2512912Y
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- CN
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- Prior art keywords
- air
- air inlet
- cam
- valve
- outlet
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- Expired - Fee Related
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Abstract
The utility model relates to a multiple air valve air inflation mechanism, comprising an air cylinder cover, an air inlet and outlet channel, an air inlet and outlet, a com cover and a dual overhead air inlet and outlet cam and a cam. The air inlet channel takes an asymmetric structure, one is eddy current channel and the other is rolling current channel. The air inlet and the air outlet cams are connected by a chain wheel through a chain. The curved shaft is connected with the air inlet and the air outlet cams through a round gear type band. The cam is connected with a valve through a vertical post mechanism. The vertical post mechanism takes a mechanical vertical post or a hydraulic vertical post. The utility model hardly changes the shape, the mounting size and the whole quality of the basic device. Besides, the utility model has the advantages of more even air mixing inside the air inlet channel, compact structure, stable rotation, low noise and reducing the friction loss.
Description
Technical field
The utility model belongs to motor car engine distribution device control technique field, is specifically related to a kind of many valves car mechanism of qi structure.
Technical background
Many Valves Technology are for improving motor car engine power performance Economy, reducing one of effective means of exhaust pollution.Adopt many Valves Technology, each big motor corporation of the world has released the new work engine of plurality of specifications to market.These motors are compared with existing fundamental mode motor, at aspects such as technical merit, power per liter, power character, Economy and dischargings significant advantage are arranged all.Simultaneously, mixed gas is owed evenly in existing many valves petrol engine ubiquity intake duct, between the parts such as rocking arm and pitman arm shaft friction loss big, structure is not compact, between the camshaft between transmission and bent axle and the camshaft transmission stability poor, and have shortcomings such as noise is bigger.
Deficiency at last art prior art, the purpose of this utility model is not do under the prerequisite of big change in external form, installation dimension and complete machine quality to the fundamental mode machine, it is more even to design in a kind of intake duct mixed gas, compact structure, stability of rotation reduces noise, and loss reduces friction, improve driving, that is the raising performance is many valve distribution mechanisms of purpose.
Summary of the invention
The technical solution adopted in the utility model is:
A kind of many valve distribution mechanisms comprise cylinder head, intake and exhaust port, inlet and exhaust valve, camshaft cover, double overhead formula, intake and exhaust cam axle and cam, and intake duct is a non-symmetry structure, and one is swirl air passage, and another is for rolling the gas road.
Connect by chain by sprocket wheel between the described intake and exhaust cam axle, be connected by arc toothed band between bent axle and the intake and exhaust cam axle.Cam links to each other with valve by the tappet structure, and described tappet structure is mechanical tappet or hydraulic tappet.
Adopt many valves petrol engine of the technical program to have the following advantages:
1. intake duct is a non-symmetry structure, and promptly one is swirl air passage, and one for rolling the gas road, when increasing air inflow, makes mixed gas more even, and can adopt more advanced Lean Burning Technique.
2. chain-driven is adopted in the transmission between two cam admission cam shafts, the exhaust cam shaft, makes the air distribution structure compactness, transmits reliable.
3. adopt arc toothed transmission between bent axle and the camshaft, can reduce rotational noise, improve the stationarity of rotating.
4. adopt the double overhead camshaft structure, cam links to each other with valve by the tappet structure, and parts such as cancellation rocking arm, pitman arm shaft have reduced friction pair, have reduced friction loss.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 is many valve distribution mechanisms of the utility model sectional view (adopting mechanical tappet);
Fig. 2 is the asymmetric air passage structure figure of the many valve distribution mechanisms of the utility model:
Fig. 3 is an annexation sectional view between many valve distribution mechanisms of the utility model crest places the cam.
Fig. 4 is many valve distribution mechanisms of the utility model camshaft and bent axle annexation sectional view.
Fig. 5 is the sectional view that the many valve distribution mechanisms of the utility model adopt hydraulic tappet.
Embodiment
Embodiment: so-called many valves are meant that every cylinder valve number is more than two I. C engine distribution mechanism.Three valve, four valves and five valves are arranged usually, and adopt four Valves Technology (2 advance, 2 row) here.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, many valve distribution mechanisms comprise cylinder head 2, inlet and exhaust valve 1, camshaft cover 4, intake and exhaust cam axle 5 and cam 6.Cam 6 links to each other with valve 1 by mechanical tappet 3.Intake duct is a non-symmetry structure, and one of intake duct is a swirl air passage 7, and another is for rolling gas road 8.Realize connecting by chain 9 by sprocket wheel 10 between the intake and exhaust cam axle 5, realize transmission by camshaft timing belt pulley 11 and bent axle Timing Belt wheel 13 by arc toothed 12 between bent axle 14 and the intake and exhaust cam axle 5.
Referring to Fig. 5, the tappet that the figure illustrates many valve distribution mechanisms adopts the structure of hydraulic tappet 15.
Adopt said structure, the inlet and outlet sectional area of valve is increased, car valve air inlet area can increase about 15%, and leaving area increases about 5% approximately.Two intake valves cause more suitable air movement, thereby have improved quality of mixing gas mixture, have reduced the discharge amount of CO and HC, shorten for combustion duration, thereby have reduced the formation of Nox.The quality that alleviates each valve can make internal-combustion engine rotational speed increase.Charging efficiency increases after adopting many valves, and velocity of combustion increases, and the result who improves charging efficiency and raising internal-combustion engine rotational speed makes nominal power, Maximum Torque improve about 20%, reduces minimum specific fuel consumption.
Claims (3)
1, a kind of many valve distribution mechanisms, comprise cylinder head (2), intake and exhaust port, inlet and exhaust valve (1), camshaft cover (4), double overhead formula, intake and exhaust cam axle (5) and cam (6), it is characterized in that: intake duct is a non-symmetry structure, one is swirl air passage (7), and another is for rolling gas road (8).
2, many valve distribution mechanisms according to claim 1 is characterized in that: connected by chain (9) by sprocket wheel (10) between the intake and exhaust cam axle (5), be connected by arc toothed band (12) between bent axle (14) and the intake and exhaust cam axle (5).
3, many valve distribution mechanisms according to claim 1 is characterized in that: cam (6) links to each other with valve (1) by the tappet structure, and described tappet structure is mechanical tappet (3) or hydraulic tappet (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01264671U CN2512912Y (en) | 2001-04-27 | 2001-09-05 | Multiple air valve air charging mechanism |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01206098 | 2001-04-27 | ||
| CN01206098.4 | 2001-04-27 | ||
| CN01264671U CN2512912Y (en) | 2001-04-27 | 2001-09-05 | Multiple air valve air charging mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2512912Y true CN2512912Y (en) | 2002-09-25 |
Family
ID=34064528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01264671U Expired - Fee Related CN2512912Y (en) | 2001-04-27 | 2001-09-05 | Multiple air valve air charging mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2512912Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101796268B (en) * | 2007-09-05 | 2013-06-12 | 马勒国际有限公司 | Piston engine |
-
2001
- 2001-09-05 CN CN01264671U patent/CN2512912Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101796268B (en) * | 2007-09-05 | 2013-06-12 | 马勒国际有限公司 | Piston engine |
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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 CHANG AN AUTOMOBILE CO., LTD. Free format text: FORMER OWNER: CHANGAN AUTOMOBILE (GROUP) CO., LTD. Effective date: 20060825 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060825 Address after: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Patentee after: Chongqing Changan Automobile Co., Ltd. Address before: 400023, Shi Yongqing, 260 Xin Dong Dong Road, Jiangbei, Chongqing Patentee before: Chang'an Automobile (Group) Co., Ltd. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |