CN2259494Y - Air intake system with by-pass air flow control valve - Google Patents
Air intake system with by-pass air flow control valve Download PDFInfo
- Publication number
- CN2259494Y CN2259494Y CN 95228133 CN95228133U CN2259494Y CN 2259494 Y CN2259494 Y CN 2259494Y CN 95228133 CN95228133 CN 95228133 CN 95228133 U CN95228133 U CN 95228133U CN 2259494 Y CN2259494 Y CN 2259494Y
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- CN
- China
- Prior art keywords
- valve
- control valve
- bypass
- air flue
- flow control
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- 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 - Lifetime
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- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The utility model relates to an air intake system with by-pass air flow control valves. The side of a main air inlet path outside the air inlet valve of a four-stroke engine cylinder body is ramified into a by-pass air path with at least one small section area, wherein, a throttle valve is arranged in a pipeline of which the length nears the length of the by-pass air path on the main air inlet path, a control valve is arranged between every two pipelines of the by-pass air path, wherein, the throttle valve and the control valve properly control the opening of every valve by a throttle linkage device. When an engine has a middle or low load, the valve of the throttle valve of the main air path is closed, and the control valve of the by-pass air path is properly opened. When the load of the engine is increased bit by bit, the valve of the throttle valve of the main air path is opened bit by bit.
Description
The utility model and engine mechanism have out, particularly about a kind of gas handling system with bypass flow control valve.
Press, the combustion efficiency of four-journey engine and the requirement of low contaminativity are improved constantly, therefore multiple air fuel ratio at engine (A/F Ratio) and otherwise research modification method are arranged; Yet,, also be the key factor of engine efficiency for charge air flow speed aspect; Aspect charge air flow speed, according to many experiment confirms, when charge air flow speed is quickened, can cause forming in the cylinder powerful flow-disturbing, make roll air-flow (Tumble) or swirl rate (SwirlRatio) bigger, its result all makes combustion variation reduce, and has splendid firing effect.
Only, general four-journey engine is for obtaining higher horsepower, to design along work valve rod direction near the air flue of air intake valve, so, when high load, its accelerator open degree maximum, air inflow makes airspeed bigger more, and can get the highest intake efficiency and obtain maximum horsepower output (as Figure 1A), but when middle-low load, air inflow is less to make that the airspeed of passing through air intake valve is too little, so, enter to make behind the cylinder and be the slow dead state of air-flow (as Figure 1B), can't carry out the thin oil burning, influence oil gas mixing and burning effect, cause fuel consumption big and discharge amount of exhaust gas is many.
Main purpose of the present utility model is to provide a kind of gas handling system with bypass flow control valve, be to adopt the long-pending bypass air flue of a small cross sections in main airway, with the friendship of main airway valve and the bypass duct control system aperture suitably control of cooperation one that matches, under the high, medium and low any load of engine, make that all charge air flow speeds up, improve roll air-flow (Tumble) or swirl rate (Swirl Ration) to obtain thin oil rapid combustion, reach best combustion effect and low contaminativity.
Another purpose of the present utility model is to provide a kind of gas handling system with bypass flow control valve, and its system architecture is simple and reliable and with low cost, and economic benefit is worth high.
For reaching above-mentioned purpose, the utlity model has the gas handling system of bypass air flue control valve, be that main airway side outside a four-journey engine cylinder body is provided with the long-pending bypass air flue of a small bore, wherein this main airway is provided with a throttle valve in the pipeline enclosure of adjacent this bypass airway length, then installed a control valve between this bypass airway tube, and this throttle valve and this control valve are suitably controlled the aperture of this each valve by an accelerator linking device, make engine when middle-low load, the throttle of this main airway is closed, and the control valve of this bypass air flue is suitable aperture, make air inflow only pass through from the long-pending bypass air flue of small bore, to strengthen inlet stream speed, improve roll air-flow or swirl rate, when engine is loaded cumulative, the throttle valve valve of cumulative then this main airway of air inflow gradually leaves and the standard-sized sheet that arrives, and makes the air inlet air flue that the maximum access area be arranged, and engine is reached best full load operation.
Relevant detailed construction of the present utility model, function and characteristics can be got fully by the detailed description of following examples and conjunction with figs. and understand:
Fig. 1 (A) is engine airspeed sketch when high load of prior art.
Fig. 1 (B) is engine airspeed sketch when low-load of prior art.
Fig. 2 is the side schematic view that gas handling system first embodiment that the utlity model has the bypass flow control valve is applied to single cylinder list intake valve engine.
Fig. 3 is that the gas handling system start that the utlity model has the bypass flow control valve links Block Diagram.
Fig. 4 is the end face schematic representation that gas handling system second embodiment that the utlity model has the bypass flow control valve is applied to the two intake valve engines of single cylinder.
Fig. 5 is the end face schematic representation that the utility model the 3rd embodiment is applied to multi-cylinder list intake valve engine, and it shows that this each bypass air flue is to be provided with a control valve altogether.
Fig. 6 is same Fig. 5, and it shows that this each bypass air flue is independently to be provided with a control valve.
Fig. 7 is same Fig. 5, and it shows that this each bypass air flue is the schematic representation that the side ring is established.
At first see also shown in Figure 2, according to diagram is to show four-journey engine cylinder block (10), this cylinder block (10) head is provided with the main airway (20) of an air inlet and an air intake valve (30) of this main airway (20) lower exit, and this main airway (20) side divides an inconsistent small cross sections long-pending bypass air flue (40); This main airway (20) is provided with a throttle valve (50) in the pipeline enclosure of adjacent this bypass air flue (40) in addition, this bypass air flue (40) pipe path has then installed a control valve (60), wherein this throttle valve (50) is to utilize a linking mechanism (70) to link a throttle (80) with this control valve (60), as shown in Figure 3, step on and this coupling mechanism of interlock (70) by this throttle (80), making this throttle valve (50) and this control valve (60) valve opening work in coordination and do a suitably control, is to can be multi-connecting-rod mechanism or be multiple designs such as electromagnetic valve structure as for this linking mechanism (70).
When engine in than low-load the time, required air inflow is less, drive this main airway (20) throttle valve (50) valve closing by this throttle (80) through linking mechanism (70) this moment, and this bypass air flue (40) control valve (60) valve has suitable aperture, make charge air flow just win by this bypass air flue (40), because of this bypass air flue (40) sectional area little, charge air flow is quickened, and the experiment proved that, heal closely from the distance of air intake valve (30) when this bypass air flue (40) extends to the other outlet of main airway (20), then can make the inner formation of this cylinder (10) flow-disturbing more powerful; When the raising gradually of engine load, this linking mechanism (70) drives this bypass air flue (40) control valve (60) valve eventually to standard-sized sheet, and this main airway (20) throttle valve (50) is progressively opened; When engine arrived full load, this main airway (10) throttle valve (50) and this bypass air flue (40) control valve (60) valve wide open made the air inlet air flue that the maximum access area be arranged; And lifting horsepower, therefore the charge air flow speed of engine cylinder all keeps the high speed effect under high, medium and low any load, can improve air-flow that rolls (Tumble) or swirl rate (Swirl Ratio) to obtain thin oil rapid combustion effect, therefore make the engine combustion variability reduce, have that splendid oil gas mixes and burning benefit and reach more fuel-efficient and oligosaprobic purpose.
See also shown in Figure 4, it is the end face schematic representation that second embodiment that the utlity model has the gas handling system of bypass flow control valve is applied to the two intake valve engines of single cylinder, it shows that this engine cylinder body (10) has two air intake valves (30), and therefore by this main airway (20) side difference two bypass air flues (40) being arranged is to extend near this each air intake valve (30); See also shown in Figure 5 again, be that the utility model the 3rd embodiment is applied to multi-cylinder list intake valve engine, it shows four cylinder block (10), it has single main airway (20) and four air intake valves (30), therefore by the other difference of this main airway (20) air vent (40) trunk (41) is on one side arranged, divide inconsistent four branches (42) extending near this each air intake valve (30) again, and be provided with a control valve (60) in this bypass air flue (40) trunk (41) pipeline; Seeing also shown in Figure 6ly again, is to be same as Fig. 5, and its difference only is that this each branch (42) of this bypass air flue (40) independently is provided with a control valve (60), see also Fig. 7 again, be with shown in Figure 5, its difference is to establish for the side ring in this bypass air flue difference direction, can have the flow-disturbing form of difference.Certainly, the utility model is bypass air flue (40) design that varying number and difference route can be arranged at the quantity of cylinder block (10), air intake valve (30), main airway (20), make the air inflow of engine cylinder in the valve opening of main airway and bypass air flue under suitable friendship matches control, under high, medium and low load, all has high speed airflow speed, and acquisition thin oil rapid combustion effect, be able to the engine combustion variability and reduce, and have that splendid oil gas mixes and burning benefit and reach more fuel-efficient and the low purpose of polluting.
Claims (5)
1. gas handling system with bypass flow control valve, it is characterized in that, it is the bypass air flue that the air inlet main airway side outside a four-journey engine cylinder block air intake valve divides inconsistent at least one small bore to amass, wherein this main airway is provided with a throttle valve in the pipeline enclosure of adjacent this bypass airway length, then installed a control valve between this bypass airway tube, wherein this throttle valve and this control valve are the apertures of suitably controlling this each valve by an accelerator linking device, when engine during in middle-low load, the throttle valve valve closing of this main airway, the control valve of this bypass air flue is suitable aperture, cumulative when the engine load, the throttle valve valve of this main airway gradually leaves.
2. the gas handling system with bypass flow control valve according to claim 1 is characterized in that, wherein this bypass air flue extends to the outlet of this main airway near the cylinder intake valve.
3. according to the described gas handling system of claim 1, it is characterized in that wherein this bypass air flue difference direction is that last side ring is established with bypass flow control valve.
4. according to the described gas handling system of claim 1, it is characterized in that wherein this bypass air flue difference direction is established for the side ring with bypass flow control valve.
5. according to the described gas handling system of claim 1, it is characterized in that wherein this bypass air flue can independently be provided with a control valve separately with bypass flow control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95228133 CN2259494Y (en) | 1995-11-14 | 1995-11-14 | Air intake system with by-pass air flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95228133 CN2259494Y (en) | 1995-11-14 | 1995-11-14 | Air intake system with by-pass air flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2259494Y true CN2259494Y (en) | 1997-08-13 |
Family
ID=33873796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95228133 Expired - Lifetime CN2259494Y (en) | 1995-11-14 | 1995-11-14 | Air intake system with by-pass air flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2259494Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8127742B2 (en) | 2006-05-09 | 2012-03-06 | Toyota Jidosha Kabushiki Kaisha | Intake control device for internal combustion engine |
| CN106593623A (en) * | 2015-10-17 | 2017-04-26 | 熵零控股股份有限公司 | Throttling internal-combustion engine |
-
1995
- 1995-11-14 CN CN 95228133 patent/CN2259494Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8127742B2 (en) | 2006-05-09 | 2012-03-06 | Toyota Jidosha Kabushiki Kaisha | Intake control device for internal combustion engine |
| CN106593623A (en) * | 2015-10-17 | 2017-04-26 | 熵零控股股份有限公司 | Throttling internal-combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |