CN202991291U - Air inlet system structure of FSAE racing automobile engine - Google Patents
Air inlet system structure of FSAE racing automobile engine Download PDFInfo
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- CN202991291U CN202991291U CN 201220329169 CN201220329169U CN202991291U CN 202991291 U CN202991291 U CN 202991291U CN 201220329169 CN201220329169 CN 201220329169 CN 201220329169 U CN201220329169 U CN 201220329169U CN 202991291 U CN202991291 U CN 202991291U
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Abstract
The utility model provides an air inlet system structure of an FSAE racing automobile engine. The air inlet system structure of the FSAE racing automobile engine comprises the following components: an air filter (1), an air inlet diversion pipe (2), a resonant chamber (3), a disc control valve (4), a throttle valve body (5), a flow limiting valve (6) and a fuel injector (7), wherein the air filter (1) is connected with the resonant chamber (3) through the air inlet division pipe (2). The resonant chamber (3) is connected with the flow limiting valve (6) through the throttle valve body (5). The flow limiting valve (6) is connected with the fuel injector (7), wherein the disc control valve (4) is connected with the resonant chamber (3) and the throttle valve body (5) therebetween. The air inlet system structure of the FSAE racing automobile engine prevents the following problems in operation of the engine: flameout caused by insufficient inlet air, unstable idle speed, high starting difficulty, insufficient power, high fuel atomization difficulty, inhomogeneous mixed gas, etc. The air inlet system of the FSAE racing automobile engine further has the following advantages: improving volumetric efficiency of the engine under different rotating speeds, greatly improving fuel atomization effect, and obtaining better power performance and discharging performance of the racing automobile engine.
Description
Technical field
The utility model is a kind of air intake system structure of FSAE racing engine, belongs to the renovation technique of the air intake system structure of FSAE racing engine.
Background technique
Engine aspirating system is the integrated morphology that the mixed gas of fresh air or air and fuel oil flows into engine cylinder-body.Engine aspirating system mainly comprises: air-strainer, air inlet honeycomb duct, resonant cavity, intake manifold, throttle mechanisms.After air process air-strainer impurity screening, flow through Air flow meter or air intake branch pressure transducer, enter intake manifold through intake duct, with the proportionate mixed gas of gasoline hybrid type of oil sprayer ejection, send into igniting generation power in cylinder block by intake valve.The effect of gas handling system is as much as possible and uniform to the mixed gas of each cylinder air supply and fuel oil or pure air as far as possible.
FSAE equation (Formula Sae) is the international race that small-sized equation motorcycle race is conceived, designs, makes and driven in the challenge undergraduate that sponsored by american car engineering association (Society of Automotive Engineers), graduate team.The motor less than the 610CC capacity is used in racing car, carries out this match of a plurality of projects.This car must be at acceleration, and braking and the aspect such as handling do well, and (require the actual cost of prototype vehicle should lower than 2.5 ten thousand dollars) with low cost, for ease of maintenaince, good reliability.Also need consider simultaneously the versatility of its aesthetic property, travelling comfort and component etc.
Along with the development of automotive industry, increasing country and institution of higher learning add the FSAE match.The manufacture level of racing car is also improving constantly.According to large tournament rules, must install an inner section between engine air throttle and oil sprayer additional for circular, diameter is the flow-limiting valve of 20mm, to guarantee justice and the Security of match.
The structure of existing racing engine gas handling system as shown in Figure 1, comprise air-strainer 1, air inlet honeycomb duct 2, resonant cavity 3, throttle valve body 5, flow-limiting valve 6, oil sprayer 7, air-strainer 1, air inlet honeycomb duct 2, resonant cavity 3, rubber hose 8, throttle valve body 5, flow-limiting valve 6, oil sprayer 7 are according to the fixing engine aspirating system that forms a racing car of air inlet order tandem connection successively.The shortcoming that this system exists is: although after oil sprayer 7 is arranged on flow-limiting valve 6, is beneficial to and improves fuel atomization effect, intake manifold length can not change with engine speed, and motor power performance when low speed, middling speed, high speed is descended, and emission performance is relatively poor.
Summary of the invention
The purpose of this utility model be to consider the problems referred to above and provide a kind of when avoiding engine running occurring because the air inlet deficiency causes stopping working, unstable idle speed, the phenomenon of difficulty in starting, eliminated power character not enough, the air intake system structure of the FSAE racing engine of the problems such as fuel-oil atmozation is difficult, and mixed gas is inhomogeneous.The utility model improves the volumetric efficiency of motor under different rotating speeds, and fuel atomization effect is greatly improved, and makes racing engine that power character, emission performance preferably be arranged.
The technical solution of the utility model is: the air intake system structure of FSAE racing engine of the present utility model, include air-strainer, air inlet honeycomb duct, resonant cavity, disk control valve, throttle valve body, flow-limiting valve, oil sprayer, wherein air-strainer is connected with resonant cavity by the air inlet honeycomb duct, resonant cavity is connected with flow-limiting valve by throttle valve body, flow-limiting valve is connected with oil sprayer, wherein is connected with the disk control valve between resonant cavity and throttle valve body.
The switching of above-mentioned disk control valve is controlled by actuating motor.
The switching of above-mentioned disk control valve is controlled by electric control device according to engine speed by actuating motor.
Above-mentioned disk control valve respectively with joint, the front and back round-corner transition of resonant cavity and throttle valve body, inboard smooth.
Above-mentioned disk control valve matches with the radial dimension of resonant cavity connecting tube and the radial dimension of throttle valve body respectively with the radial dimension of resonant cavity and throttle valve body joint respectively.
Above-mentioned throttle valve body extends downwards, and flow-limiting valve, oil sprayer are arranged on throttle valve body.
The utility model arranges the structure of disk control valve owing to adopting between resonant cavity and throttle valve body, and joint, front and back radial dimension matches, and the switching of disk control valve is determining the change of gas-entered passageway.The inner wall smooth of disk control valve opens and closes sensitively, and the disk control valve controlled by actuating motor, controls accurately.When the utility model can engine running not occur because the air inlet deficiency causes stopping working, unstable idle speed, the phenomenon of difficulty in starting has been eliminated power character not enough, fuel-oil atmozation is difficult, the problem that mixed gas is inhomogeneous; The disk control valve is controlled by actuating motor, can accurately open or close valve to different rotating speeds, changes gas-entered passageway.The volumetric efficiency of motor under different rotating speeds improves, and fuel atomization effect is greatly improved, and finally makes racing engine that power character, emission performance are preferably arranged.In addition, the utility model does not split other structure of gas handling system, only install the disk control valve additional in the air inlet flow process, flow-limiting valve and oil sprayer are arranged on existing prolongation throttle valve body, do not affect Air flow meter in gas handling system or the function of air intake branch pressure transducer, therefore do not affect switching and the oil sprayer work of closure.The utility model has improved power character, the emission performance of FSAE racing engine, improves the charging efficiency of motor, and the defective of engine charge deficiency when making up low speed, middling speed, high speed can improve the volumetric efficiency under the various rotating speeds of motor.The utility model is that a kind of design is ingenious, function admirable, the air intake system structure of convenient and practical FSAE racing engine.
Description of drawings
Fig. 1 is the air intake system structure figure of existing FSAE racing engine.
Fig. 2 is structural representation of the present utility model.
Schematic diagram when Fig. 3 is the unlatching of the utility model disk control valve.
Fig. 4 is the schematic diagram of the utility model disk control valve when closing.
Embodiment
Embodiment:
Structural representation of the present utility model is as shown in Fig. 1,2,3,4, the air intake system structure of FSAE racing engine of the present utility model, include air-strainer 1, air inlet honeycomb duct 2, resonant cavity 3, disk control valve 4, throttle valve body 5, flow-limiting valve 6, oil sprayer 7, wherein air-strainer 1 is connected with resonant cavity 3 by air inlet honeycomb duct 2, resonant cavity 3 is connected with flow-limiting valve 6 by throttle valve body 5, flow-limiting valve 6 is connected with oil sprayer 7, wherein is connected with disk control valve 4 between resonant cavity 3 and throttle valve body 5.
The switching of above-mentioned disk control valve 4 is controlled by actuating motor.
The switching of above-mentioned disk control valve 4 is controlled by electric control device according to engine speed by actuating motor.As shown in Figure 3, Figure 4, the opening and closing of disk control valve 4 change gas-entered passageway, and the switching of disk control valve 4 is controlled according to engine speed by ECU, controls by actuating motor and works.
Above-mentioned disk control valve 4 respectively with joint, the front and back round-corner transition of resonant cavity 3 and throttle valve body 5, inboard smooth.
Above-mentioned disk control valve 4 matches with the radial dimension of resonant cavity 3 connecting tubes and the radial dimension of throttle valve body 5 respectively with the radial dimension of resonant cavity 3 and throttle valve body 5 joints respectively.
In the present embodiment, above-mentioned throttle valve body 5 extends downwards, and flow-limiting valve 6, oil sprayer 7 are arranged on throttle valve body 5.
Working principle of the present utility model is as follows: under actuating motor was controlled, disk control valve 4 was when high engine speeds, and disk control valve 4 keeps standard-sized sheet, to reduce the flow resistance of air inlet, as the structural representation of Fig. 3; When low engine speed, disk control valve 4 keeps closing, and forces all air inlets by long and narrow admission line, as the structural representation of Fig. 4; When medium engine speed, the unlatching that valve is slight realizes the smooth transition that two kinds of methods of operation are middle.The volumetric efficiency of motor improves under various rotating speeds like this, and fuel atomization effect is greatly improved, and finally makes racing engine that power character, emission performance are preferably arranged.
Claims (6)
1. the air intake system structure of a FSAE racing engine, include air-strainer (1), air inlet honeycomb duct (2), resonant cavity (3), disk control valve (4), throttle valve body (5), flow-limiting valve (6), oil sprayer (7), wherein air-strainer (1) is connected with resonant cavity (3) by air inlet honeycomb duct (2), resonant cavity (3) is connected with flow-limiting valve (6) by throttle valve body (5), flow-limiting valve (6) is connected with oil sprayer (7), it is characterized in that being connected with disk control valve (4) between resonant cavity (3) and throttle valve body (5).
2. the air intake system structure of FSAE racing engine according to claim 1, is characterized in that the switching of above-mentioned disk control valve (4) is controlled by actuating motor.
3. the air intake system structure of FSAE racing engine according to claim 1, is characterized in that the switching of above-mentioned disk control valve (4) is controlled by electric control device according to engine speed by actuating motor.
4. the air intake system structure of FSAE racing engine according to claim 1, it is characterized in that above-mentioned disk control valve (4) respectively with joint, the front and back round-corner transition of resonant cavity (3) and throttle valve body (5), inboard smooth.
5. the air intake system structure of FSAE racing engine according to claim 1 is characterized in that above-mentioned disk control valve (4) matches with the radial dimension of resonant cavity (3) connecting tube and the radial dimension of throttle valve body (5) respectively with the radial dimension of resonant cavity (3) and throttle valve body (5) joint respectively.
6. the air intake system structure of FSAE racing engine according to claim 1, is characterized in that above-mentioned throttle valve body (5) elongation downwards, and flow-limiting valve (6), oil sprayer (7) are arranged on throttle valve body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220329169 CN202991291U (en) | 2012-07-09 | 2012-07-09 | Air inlet system structure of FSAE racing automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220329169 CN202991291U (en) | 2012-07-09 | 2012-07-09 | Air inlet system structure of FSAE racing automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991291U true CN202991291U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220329169 Expired - Fee Related CN202991291U (en) | 2012-07-09 | 2012-07-09 | Air inlet system structure of FSAE racing automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991291U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014713A (en) * | 2016-05-25 | 2016-10-12 | 东南大学 | Special intake-exhaust system for JH600 engine of FSAE racing car |
| CN111828163A (en) * | 2020-06-24 | 2020-10-27 | 东南大学 | Variable air intake mechanism of CBR600 in-line four-cylinder engine meeting requirements of FSC (free gas cylinder) flow limiting valve |
-
2012
- 2012-07-09 CN CN 201220329169 patent/CN202991291U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014713A (en) * | 2016-05-25 | 2016-10-12 | 东南大学 | Special intake-exhaust system for JH600 engine of FSAE racing car |
| CN106014713B (en) * | 2016-05-25 | 2018-10-30 | 东南大学 | A kind of special air inlet system and exhaust system of FSAE racing cars JH600 engines |
| CN111828163A (en) * | 2020-06-24 | 2020-10-27 | 东南大学 | Variable air intake mechanism of CBR600 in-line four-cylinder engine meeting requirements of FSC (free gas cylinder) flow limiting valve |
| CN111828163B (en) * | 2020-06-24 | 2021-08-10 | 东南大学 | Variable air intake mechanism of CBR600 in-line four-cylinder engine meeting requirements of FSC (free gas cylinder) flow limiting valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20140709 |
|
| EXPY | Termination of patent right or utility model |