CN201531322U - Engine air intake duct structure - Google Patents
Engine air intake duct structure Download PDFInfo
- Publication number
- CN201531322U CN201531322U CN2009201413735U CN200920141373U CN201531322U CN 201531322 U CN201531322 U CN 201531322U CN 2009201413735 U CN2009201413735 U CN 2009201413735U CN 200920141373 U CN200920141373 U CN 200920141373U CN 201531322 U CN201531322 U CN 201531322U
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- China
- Prior art keywords
- intake duct
- engine
- air
- air intake
- baffle plate
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Abstract
The utility model relates to an engine air intake duct structure which comprises an air intake duct and a baffle plate, wherein the baffle plate divides the air intake duct into two independent air intake ducts, that is, a first air intake duct and a second air intake duct, and at the inlet of the air intake duct, the baffle plate is provided with an avoiding groove used for the fuel spraying of an fuel injector, an air intake duct inlet of a changeable cross-sectional engine intake manifold is provided with two independent air inlets, that is, a first air inlet and a second air inlet, and the first and second air inlets are provided with valve slices which are controlled by an engine electronic control unit ECU. Compared with the prior art, when an engine is in the working order of low speed and low load, the mixing gas mainly flows into a combustion chamber through one of the air passages, the intake air flow speed is increased, and the inertia is enlarged, thereby the intake air quantity in the engine combustion chamber during the same time is increased, the engine charging efficiency is increased, and the exhausting property, the comprehensive oil consumption and the dynamic property of the engine are improved.
Description
[technical field]
Technical solutions of the utility model relate to the improvement of cylinder cover of automobile engine intake duct structure, are specifically related to a kind of engine cylinder cap intake duct of variable cross section.
[background technique]
Petrol engine cylinder cap intake duct directly is connected with engine chamber, mainly is that fresh burning mixture is provided in the firing chamber.The design of cylinder cap intake duct can play under identical accelerator open degree, provide polyhybird gas more effect, thereby improve engine power performance.The design form that separates after the first integral body is generally adopted in the design of traditional double engine intake valve intake duct, promptly on cylinder cap before this by an intake duct air inlet, before entering the firing chamber, just be divided into two independently suction ports.Because gas flow rate is relevant with the sectional area size of air flue usually, under the same traffic, sectional area is more little, and flow velocity is big more.And incorporate design is big owing to sectional area of air passage, and under identical flow, induction air flow ratio is low, in identical inflationtime, the gas gross that enters into the firing chamber is little, thereby engine power performance is poor, and especially motor shows more obviously when the low speed operating mode.And the performance of motor under low speed more can be pressed close to vehicle actual travel operating mode, and the engine performance when therefore promoting low speed has realistic meanings more to the automobile consumer.
The design that separates after the traditional double engine intake valve intake duct elder generation integral body makes induction air flow ratio low, and charging efficiency is low, especially motor poor performance under the low speed situation.
[model utility content]
In order to improve the motor performance under the low speed operating mode, especially motor power performance and the fuel-economy performance under lower-speed state, the utility model provides a kind of engine inlets structure.
The technological scheme that the prior art problem that solves the utility model is adopted is: a kind of engine inlets structure is provided, comprise intake duct, baffle plate, described baffle plate is divided into two independently intake duct first intake duct and second intake ducts with intake duct, be provided with a groove of dodging that is used for the oil sprayer oil spout at the described baffle plate in the ingress of intake duct, described variable cross section formula engine intake manifold inlet mouth is two independently first suction port and second suction ports, and first suction port or second suction port are provided with by the valve block on the manifold that is used with cylinder cap of engine electronic control unit ECU control.
Optimal technical scheme of the present utility model is: the ingress of described first intake duct and second intake duct be shaped as half peach shape.
Optimal technical scheme of the present utility model is: describedly dodge the position that groove is positioned at half peach shape peach point.
Optimal technical scheme of the present utility model is: the valve block on the manifold that described and cylinder cap is used is dish-shaped valve block.
The dish valve block: the structure of this valve is the principle of pulling according to the pipe retaining, its flow control component is one the dish (door) (its material can be metal or the metal outer rim is wrapped plastic cement, polytetrafluoroethylene etc.) at inclination angle to be arranged, disk is fixed on the axle, and control the switching rotation of 90 degree (open and close need only) with revolvable axle, valve seat can be materials such as metal, rubber, polytetrafluoroethylene, and be fixed on the valve body wall, this valve constitution is simple, its valve body is pancake (WAFER) type, in light weight, and not taking up space is suitable for the usefulness of throttling and switching.
Optimal technical scheme of the present utility model is: describedly dodge the groove of dodging that groove is a wedge shape.
Compared to prior art, a kind of engine inlets structure that the utility model provides, because motor mixed gas under the low speed and load operating mode mainly is to flow into the firing chamber by one of them air flue, induction air flow ratio increases, inertia strengthens, thereby the air inflow that enters into engine chamber in the identical time is increased, and the motor charging efficiency increases, and the emission performance of motor and comprehensive oil consumption and power performance all improve.Because the increase of induction air flow ratio makes that the swirl rate of gas increases in the firing chamber, air is more abundant with mixing of fuel simultaneously, velocity of propagation of flame is faster, the burning of motor is more abundant, and emission performance is improved greatly, and the idle stability of motor can be also better.
[description of drawings]
Fig. 1 is a kind of engine inlets structure of the utility model cylinder cap air inlet side structure schematic representation
Fig. 2 is the split type cylinder cap intake duct of a kind of engine inlets structure of a utility model project organization schematic perspective view;
Fig. 3 is the split type cylinder cap intake duct of a kind of engine inlets structure of a utility model project organization floor map.
Fig. 4 is the intake manifold supporting with the utility model.
Fig. 5 is the utility model baffle plate peach tip cutter processing schematic representation.
Fig. 6 is the utility model intake duct sectional view.
Fig. 7 is the utility model inlet structure schematic representation.
Each component names is as follows among the figure: cylinder cap 1, peach point 2, first intake duct 3, second intake duct 4, first suction port 5, second suction port 6, baffle plate 7, first cutter 8, second cutter 9, valve block 10, dodge groove 11, jet 12.
[embodiment]
Below in conjunction with drawings and Examples technical solutions of the utility model are launched explanation:
A kind of engine inlets structural design of the utility model as shown in Figure 1 to Figure 3 adopts a kind of split type cylinder cap intake duct design, cooperates a kind of variable cross section formula engine intake manifold, sees Fig. 4.Cylinder cap 1 adopts casting aluminium material, adopt two independence half peach type designs in the ingress of cylinder cap intake duct, middle design has baffle plate 7, baffle plate 7 is divided into two fully independently first intake duct 3 and second intake ducts 4 with intake duct, in the ingress of two air flues is peach point 2 positions, and the groove 11 of dodging that baffle plate is processed a wedge shape is used for the oil sprayer oil spout.The split type cylinder cap intake duct of the utility model wedge shape is dodged the groove processing mode as shown in Figure 5, and first cutter 8 and second cutter 9 are processed the wedge shape of the ingress of two air flues respectively and dodged groove, forms the shape of peach point 2.Cylinder cap and variable cross section intake manifold are used.Among Fig. 4, the variable intake manifold inlet mouth is divided into two independently suction port first suction port 5 and second suction ports 6.On second suction port 6, be furnished with a controlled dish-like valve block 10.Dish-like valve block 10 can be realized opening and closing under the control of Engine ECU (engine electronic control unit).When motor when the low speed and load operating mode is moved, dish-like valve block 10 is closed, at this moment air mainly flow into the cylinder cap intake duct 3 from suction port 5, and forms air-fuel mixture enter into engine chamber in air flue 3.When motor when fast state moves, dish-like valve block 10 is opened, at this moment air flow into cylinder cap first intake duct 3 and second intake duct 4 simultaneously from first suction port 5 and second suction port 6, and the formation air-fuel mixture enters into engine chamber in first intake duct 3 and second intake duct 4.
Effect from practical application, because motor mixed gas under the low speed and load operating mode mainly is to flow into the firing chamber by one of them air flue, induction air flow ratio increases, inertia strengthens, thereby the air inflow that enters into engine chamber in the identical time is increased, the motor charging efficiency increases, and power performance improves.Because the increase of induction air flow ratio makes that the swirl rate of gas increases in the firing chamber, air is more abundant with mixing of fuel simultaneously, velocity of propagation of flame is faster, the burning of motor is more abundant, and emission performance is improved greatly, and the idle stability of motor can be also better.
Above content be in conjunction with concrete optimal technical scheme to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. engine inlets structure, comprise intake duct, it is characterized in that: comprise baffle plate (7), variable cross section formula engine intake manifold, described baffle plate (7) is divided into two independently intake duct first intake duct (3) and second intake ducts (4) with intake duct, the described baffle plate in the ingress of intake duct (7) be provided with one be used for the oil sprayer oil spout dodge groove (11), described variable cross section formula engine intake manifold inlet mouth is two independently first suction port (5) and second suction ports (6), and first suction port (5) or second suction port (6) are provided with by the valve block (10) on the manifold that is used with cylinder cap of engine electronic control unit ECU control.
2. a kind of engine inlets structure as claimed in claim 1 is characterized in that: the ingress of described first intake duct (3) and second intake duct (4) be shaped as half peach shape.
3. a kind of engine inlets structure as claimed in claim 1 is characterized in that: describedly dodge the position that groove (11) is positioned at half peach shape peach point (2).
4. as any described a kind of engine inlets structure of claim 1 to 3, it is characterized in that: described valve block (10) is dish-shaped valve block.
5. as any one described a kind of engine inlets structure of claim 1 to 3, it is characterized in that: the described groove of dodging of dodging groove (11) for wedge shape.
6. a kind of engine inlets structure as claimed in claim 4 is characterized in that: the described groove of dodging of dodging groove (11) for wedge shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201413735U CN201531322U (en) | 2009-09-25 | 2009-09-25 | Engine air intake duct structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201413735U CN201531322U (en) | 2009-09-25 | 2009-09-25 | Engine air intake duct structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201531322U true CN201531322U (en) | 2010-07-21 |
Family
ID=42526726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201413735U Expired - Lifetime CN201531322U (en) | 2009-09-25 | 2009-09-25 | Engine air intake duct structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201531322U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943722A (en) * | 2012-11-29 | 2013-02-27 | 重庆长安汽车股份有限公司 | Air filter |
| CN106762106A (en) * | 2015-11-23 | 2017-05-31 | 现代自动车株式会社 | For the engine structure of vehicle |
-
2009
- 2009-09-25 CN CN2009201413735U patent/CN201531322U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943722A (en) * | 2012-11-29 | 2013-02-27 | 重庆长安汽车股份有限公司 | Air filter |
| CN106762106A (en) * | 2015-11-23 | 2017-05-31 | 现代自动车株式会社 | For the engine structure of vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100721 |
|
| CX01 | Expiry of patent term |