CN203560021U - Air inlet system for engine - Google Patents
Air inlet system for engine Download PDFInfo
- Publication number
- CN203560021U CN203560021U CN201320640538.XU CN201320640538U CN203560021U CN 203560021 U CN203560021 U CN 203560021U CN 201320640538 U CN201320640538 U CN 201320640538U CN 203560021 U CN203560021 U CN 203560021U
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- China
- Prior art keywords
- air inlet
- air
- engine
- inlet pipeline
- rubber hose
- 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
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- 238000001914 filtration Methods 0.000 claims abstract description 6
- 239000000725 suspension Substances 0.000 claims description 9
- 238000013016 damping Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 16
- 238000013461 design Methods 0.000 description 12
- 238000009826 distribution Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses an air inlet system for an engine. The air inlet system comprises the following components: an air inlet arranged at the upper part of the rear periphery of a car, an air inlet grille (1), a water-discharging box (4), a first air inlet pipeline (3), a first rubber elbow (2), a second air inlet pipeline(5), a second rubber elbow (6), a fixing bracket (7), a connecting hanging bracket (8), an air cleaner (10) and a vibration-reducing rubber mat (9). The air inlet system for the engine can effectively improve the air inlet environment of the engine and prolong the maintenance period and the service life of an air filtration chip, and can meet the application requirements for the engine, so that the dynamic property, economical efficiency and reliability of the engine are fully played.
Description
Technical field
The utility model relates to engine aspirating system, and particularly a kind of have a gas handling system that is arranged on the engine intake of upper part after vehicle.
Background technique
In recent years, along with the continuous growth of China's economy, bus industry development rapidly, but there is certain problem in existing passenger vehicle in the design of engine intake position, in motor air amount, also suck a large amount of dust, cause passenger vehicle in use frequently to occur some motor premature wears, burn oil, the phenomenon such as be short of power, and then cause vehicle to stop using, keep in repair, bring larger economic loss to the vehicle owner.
Analyze by inquiry, existing passenger vehicle is rear engine, and engine intake is conventionally in 3 positions shown in Fig. 1:
1, engine intake designs in hatch door position, vehicle rear wheel rear portion, with intercooler in same storehouse, referring to the position in Fig. 1 (1);
2, engine intake designs in the large side bar of vehicle rear car load skeleton top position, referring to the position in Fig. 1 (2);
3, engine intake designs in luggage compartment door position, vehicle rear wheel front, referring to the position in Fig. 1 (3);
For above-mentioned situation, the applicant analyzes and researches for airflow pattern in the process of moving of the passenger vehicle of rear engine and the distribution of dust, has formulated feasible experimental program, and has carried out test of many times.Experimental technique comprises the steps:
Step 1: clean vehicle outer surface, cleaning air-strainer and air inlet pipeline;
Step 2: paste respectively red adhesive tape in vehicle body both sides take 100mm as spacing, and be coated with uniformly last layer antifreeze liquid, for adsorbing dust;
Step 3: travel continuously 100 kilometers on the more road surface of dust, observe the situation of vehicle external surface absorption dust.
According to experimental result, draw out Vehicle Driving Cycle dust distribution figure, as shown in Figure 2, wherein shadow region is dust distribution.
As shown in Figure 2, the dust of kicking up due to trailing wheel during Vehicle Driving Cycle, is distributed in substantially take trailing wheel as starting point, and the 45 ° of extensions that recede are with in regional extent apart from the crossing formation of ground 2420mm horizontal linear, and the rear face position of vehicle.Engine intake position (1) and position (2) are all in experiment dust distributed areas, position (3) is not though in experiment dust distributed areas, but lower apart from ground because of it, when mixing dust road traveling, overtake other vehicles in the same way or still have a large amount of dust during two-way giving another the right of way and be inhaled into engine charge pipeline, in addition, the design of position (3) also needs to take part luggage compartment space.
After off-test, check air-strainer, inner product has a large amount of dusts, shows the suction port position existing problems of former air-strainer, and dust is more, as not frequent cleaning maintenance, will have a strong impact on performance and the working life of air-strainer and motor.
Summary of the invention
For the defect of prior art, propose the utility model, the utility model proposes a kind of new gas handling system design proposal, engine intake is arranged in to upper part after vehicle (be called for short upper air, lower with), this position dust is few, and does not take luggage compartment space.
The utility model can be realized by following measure.
A kind of engine aspirating system, is characterised in that:
Suction port is arranged on upper part after vehicle.
According to above-mentioned engine aspirating system, also comprise and being arranged on suction port and by the air-inlet grille of its covering (1);
Sluicing box (4);
Be connected to first air inlet pipeline (3) of sluicing box (4);
Be connected to first curved rubber hose (2) of the first air inlet pipeline (3);
Be connected to second air inlet pipeline (5) of the first curved rubber hose (2);
Be connected to second curved rubber hose (6) of the second air inlet pipeline (5);
Fix the fixed support (7) of the first air inlet pipeline (3), the first curved rubber hose (2), the second air inlet pipeline (5) and the second curved rubber hose (6);
Be connected to the connection suspension bracket (8) of fixed support (7);
Be fixed to the air-strainer (10) that connects suspension bracket (8) and be connected to the second curved rubber hose (6);
Be arranged on air-strainer (10) and connect the damping rubber pad (9) between suspension bracket (8).
According to above-mentioned engine aspirating system, wherein fresh air enters sluicing box (4) by air-inlet grille (1), afterwards successively through the first air inlet pipeline (3), the first curved rubber hose (2), the second air inlet pipeline (5), the second curved rubber hose (6) to arrive air-strainer (10), by removable paper filter core, carry out filtering subsequently, finally enter into motor.
According to above-mentioned engine aspirating system, the bottom level of the box (4) that wherein sluices is lower than the bottom level of the first air inlet pipeline (3).
According to above-mentioned engine aspirating system, wherein the sectional area of the net air pipeline of gas handling system is:
For naturally aspirated engine, be 46-51.75mm
2/ KW;
For supercharged engine, be 57.5-74.75mm
2/ KW.
According to above-mentioned engine aspirating system, wherein the air inlet area of air-inlet grille (1) is more than or equal to the sectional area of net air pipeline.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of passenger vehicle suction port of the prior art position;
Fig. 2 is bus driving dust distribution schematic diagram of the prior art;
Fig. 3 is the plane perspective view according to engine aspirating system of the present utility model; And
Fig. 4 is the plane perspective view along the A direction in Fig. 3.
Embodiment
Below in conjunction with embodiment, the utility model is further described.
As shown in Fig. 3 and Fig. 4, according to engine aspirating system of the present utility model, comprise: the suction port that is arranged on upper part after vehicle; Be arranged on suction port and by the air-inlet grille of its covering (1); Sluicing box (4); Be connected to first air inlet pipeline (3) of sluicing box (4); Be connected to first curved rubber hose (2) of the first air inlet pipeline (3); Be connected to second air inlet pipeline (5) of the first curved rubber hose (2); Be connected to second curved rubber hose (6) of the second air inlet pipeline (5); Fix the fixed support (7) of the first air inlet pipeline (3), the first curved rubber hose (2), the second air inlet pipeline (5) and the second curved rubber hose (6); Be connected to the connection suspension bracket (8) of fixed support (7); Be fixed to the air-strainer (10) that connects suspension bracket (8) and be connected to the second curved rubber hose (6); Be arranged on air-strainer (10) and connect the damping rubber pad (9) between suspension bracket (8).
Wherein fresh air enters sluicing box (4) by air-inlet grille (1) by suction port, and sluicing box (4) bottom has the adaptor tube (not shown) of Φ 8, and Φ 8 adaptor tube bottoms connect Φ 12 rubber hose (not shown) to vehicle bottom.
As shown in Fig. 3 and Fig. 4, there is certain height difference in the bottom of the bottom of sluicing box (4) and the first air inlet pipeline (3), and the bottom level of the box that sluices (4) is lower than the bottom level of the first air inlet pipeline (3).Therefore when rainy or carwash, if while having water to enter, water can be discharged outside cars by Φ 8 adaptor tubes of sluicing box (4) bottom and Φ 12 rubber hose, thereby avoids entering in air-strainer (10).
By sluicing box (4) afterwards, fresh air through the first air inlet pipeline (3) to the first curved rubber hose (2), again to the second air inlet pipeline (5) to the second curved rubber hose (6) to arrive air-strainer (10), subsequently by removable paper filter core filtering air, then enter into motor.In addition, air-strainer (10) is with automatically controlled maintenance indicator (not shown), can point out driver's cleaned at regular intervals or renew cartridge more.
Said structure both can prevent that airborne dust from entering, also can filter out airborne rainwater, thereby effectively improved the air inlet environment of motor, maintenance period and the working life thereof of air filtering core have been extended, and guaranteed the usage requirement of motor, give full play to power character, Economy and the reliability of motor.
The design of gas handling system, except the relative position of engine intake, the design of air inlet pipeline also has important technical order, i.e. an intake resistance.The large young pathbreaker of intake resistance directly affects the performance of engine power.The factor of resistance that affects gas handling system is a lot, comprising the profile of the smooth degree of the shape of pipeline, conveyance conduit, flexible coupling pattern, line size, suction port and bend pipe pattern etc.
According to circuit design of the present utility model, comprise:
The size design basis of net air pipeline:
Sectional area requirement=40-45mm
2/ KW, for naturally aspirated engine.
Sectional area requirement=50-65mm
2/ KW, for supercharged engine.
First, according to engine power, calculate the size of net air pipeline, far away in view of the positional distance motor according to suction port of the present utility model, therefore the sectional area of net air pipeline should strengthen 15% left and right again, for naturally aspirated engine, is 46-51.75mm
2/ KW; For supercharged engine, be 57.5-74.75mm
2/ KW.Net air pipeline should be straight as far as possible, reduces bending part, will avoid especially zig zag situation, in order to avoid increase intake resistance.
Then, calculate the drag overall of gas handling system, compare with the desired full admission resistance of motor, thus the final circuit design scheme of definite gas handling system.
Finally the design of air-inlet grille (1), the sectional area of answer >=(being more than or equal to) net air pipeline of its air inlet area, thus guarantee air inflow.
The upper air scheme proposing for the utility model is carried out real vehicle application, by engine production producer, carries out the test of car load matching performance, and test result shows, upper air scheme of the present utility model meets the requirement of motor to gas handling system completely.
So far, foregoing description has described engine aspirating system of the present utility model in detail, with respect to the gas handling system of prior art, the engine aspirating system the utility model proposes can improve the air inlet environment of motor effectively, extend maintenance period and the working life thereof of air filtering core, and guarantee the usage requirement of motor, give full play to power character, Economy and the reliability of motor.The embodiment who describes is above only preferred embodiment of the present utility model, and it is not intended to limit the utility model.Those skilled in the art are not departing under the prerequisite of the utility model spirit, can make any modification to the utility model, and protection domain of the present utility model are limited to the appended claims.
Claims (6)
1. an engine aspirating system, is characterised in that:
Suction port is arranged on upper part after vehicle.
2. engine aspirating system according to claim 1, also comprises:
Be arranged on suction port and by the air-inlet grille of its covering (1);
Sluicing box (4);
Be connected to first air inlet pipeline (3) of sluicing box (4);
Be connected to first curved rubber hose (2) of the first air inlet pipeline (3);
Be connected to second air inlet pipeline (5) of the first curved rubber hose (2);
Be connected to second curved rubber hose (6) of the second air inlet pipeline (5);
Fix the fixed support (7) of the first air inlet pipeline (3), the first curved rubber hose (2), the second air inlet pipeline (5) and the second curved rubber hose (6);
Be connected to the connection suspension bracket (8) of fixed support (7);
Be fixed to the air-strainer (10) that connects suspension bracket (8) and be connected to the second curved rubber hose (6);
Be arranged on air-strainer (10) and connect the damping rubber pad (9) between suspension bracket (8).
3. engine aspirating system according to claim 2, wherein fresh air enters sluicing box (4) by air-inlet grille (1), afterwards successively through the first air inlet pipeline (3), the first curved rubber hose (2), the second air inlet pipeline (5), the second curved rubber hose (6) to arrive air-strainer (10), by removable paper filter core, carry out filtering subsequently, finally enter into motor.
4. according to the engine aspirating system described in claim 2 or 3, the bottom level of the box (4) that wherein sluices is lower than the bottom level of the first air inlet pipeline (3).
5. engine aspirating system according to claim 1, wherein the sectional area of the net air pipeline of gas handling system is:
For naturally aspirated engine, be 46-51.75mm
2/ KW;
For supercharged engine, be 57.5-74.75mm
2/ KW.
6. engine aspirating system according to claim 5, wherein the air inlet area of air-inlet grille (1) is more than or equal to the sectional area of net air pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320640538.XU CN203560021U (en) | 2013-10-17 | 2013-10-17 | Air inlet system for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320640538.XU CN203560021U (en) | 2013-10-17 | 2013-10-17 | Air inlet system for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560021U true CN203560021U (en) | 2014-04-23 |
Family
ID=50509747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320640538.XU Expired - Fee Related CN203560021U (en) | 2013-10-17 | 2013-10-17 | Air inlet system for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560021U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108367670A (en) * | 2015-12-11 | 2018-08-03 | 沃尔沃卡车集团 | Active burning air induction system for truck, tractor or public transit vehicle |
-
2013
- 2013-10-17 CN CN201320640538.XU patent/CN203560021U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108367670A (en) * | 2015-12-11 | 2018-08-03 | 沃尔沃卡车集团 | Active burning air induction system for truck, tractor or public transit vehicle |
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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: 20140423 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |