CN201100191Y - Gas engine negative pressure flow guider - Google Patents
Gas engine negative pressure flow guider Download PDFInfo
- Publication number
- CN201100191Y CN201100191Y CNU2007201256631U CN200720125663U CN201100191Y CN 201100191 Y CN201100191 Y CN 201100191Y CN U2007201256631 U CNU2007201256631 U CN U2007201256631U CN 200720125663 U CN200720125663 U CN 200720125663U CN 201100191 Y CN201100191 Y CN 201100191Y
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- CN
- China
- Prior art keywords
- negative pressure
- pressure drainage
- negative
- air
- air inlet
- 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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Abstract
A diesel engine negative pressure drainage pump does not consume extra mechanical energy, and draws introduced air into an air inlet pipe through utilizing negative pressure. A negative pressure drainage pipe is connected with the air inlet pipe, which makes the air inlet and the air outlet of the drainage pipe be located on the external portion and the inner portion of the air inlet pipe. A negative pressure region is formed on the vicinity region of the air outlet of the negative pressure drainage pipe when high speed entering air which has the same direction with the opening of the air outlet of the negative pressure drainage pipe flows in the air inlet pipe, introduced air flows into the negative pressure region through the negative pressure drainage pipe under the effect of the negative pressure, thereby reaching the purposes of non consuming extra mechanical energy, and drawing introduced air into the air inlet pipe through utilizing negative pressure which is caused by the high speed flow of air.
Description
Affiliated technical field
The utility model relates to a kind of internal-combustion engine gas introducing apparatus, and especially on the basis that does not consume extra mechanical energy, the negative pressure of utilizing gas flow to produce will be introduced into the internal combustion engine negative pressure drainage device that gas is introduced suction tude.
Background technique
At present, known internal-combustion engine egr system is to utilize Venturi tube that waste gas is introduced suction tude, EGR gas passes through cooler, be introduced in the aditus laryngis place of Venturi tube, in this point, air inlet is passed through a tapered channels by the speedup step-down, pressure is reduced to minimum at nearly aditus laryngis place, even after the waste gas of recirculation mixes, by a diffuser pipe, pressure is recovered gradually again.Adopt the Venturi tube system that the induction system of internal combustion engine volume is increased, the pressurized machine load strengthens, and manufacture cost improves.
Summary of the invention
In order to dwindle the volume of internal-combustion engine egr system, reduce the pressurized machine load, effectively reduce manufacture cost, the utility model provides a kind of internal combustion engine negative pressure drainage device, this internal combustion engine negative pressure drainage device can not only be introduced suction tude with being introduced into gas, and volume is little, easily adjustments of gas introducing amount.
The technological scheme that its technical problem that solves the utility model adopts is: in suction tude, negative-pressure drainage tube is set, makes the air outlet opening direction of negative-pressure drainage tube consistent with the direction of air inlet gas flow.When air inlet gas flow at high speed, negative-pressure drainage tube forms inhibition to charge air flow, cause forming negative pressuren zone at the air outlet of negative-pressure drainage tube near zone, under the effect of negative pressure, be introduced into gas and be incorporated into negative pressuren zone by negative-pressure drainage tube, and mix with air inlet gas and to form mixed gas and in suction tude, move on, reach on the basis that does not consume extra mechanical energy, the negative pressure of utilizing gas flow to produce will be introduced into the purpose that gas is introduced suction tude.
The beneficial effects of the utility model are, as long as negative-pressure drainage tube is installed on suction tude, need not consume extra mechanical energy, and the negative pressure of utilizing gas flow to produce is introduced suction tude with gas, and is simple in structure, and the gas handling system volume increases little, easy to manufacture.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a schematic diagram of the present utility model.
Fig. 2 is internal combustion engine negative pressure drainage device embodiment's a plan view.
Fig. 3 is the I--I sectional view of Fig. 2.
Fig. 4 is the II--II sectional view of Fig. 2.
1. suction tude among Fig. 1,2. air inlet gas, 3. negative-pressure drainage tube, 4. the negative-pressure drainage tube suction port 5. is introduced into gas, 6. negative-pressure drainage tube air outlet, 7. mixed gas, 8. negative pressuren zone.
Embodiment
In Fig. 1, negative-pressure drainage tube (3) is installed on the suction tude (1), negative-pressure drainage tube suction port (4) is in the outside of suction tude (1), and negative-pressure drainage tube air outlet (6) in the inside of suction tude (1), the opening direction of negative-pressure drainage tube air outlet (6) is consistent with the flow direction of air inlet gas (2).When air inlet gas (2) flows forward in suction tude (1), near zone in negative-pressure drainage tube air outlet (6) forms negative pressuren zone (8), be introduced into gas (5) and enter negative-pressure drainage tube (3) from negative-pressure drainage tube suction port (4), flow out negative-pressure drainage tube (3) from negative-pressure drainage tube air outlet (6), enter negative pressuren zone (8), be introduced into gas (5) and air inlet gas (2) and in suction tude (1), mix and form mixed gas (7) and move on.Regulate the size of negative-pressure drainage tube suction port (4), be introduced into the amount of gas (5) with regard to can regulate.
In embodiment illustrated in fig. 2, suction tude (1) is integrated with negative-pressure drainage tube (3), in order to guarantee the abundant inflow of air inlet gas (2), the sectional area of the gas-entered passageway of suction tude (1) is 2 times of sectional area of the cylindrical tube at place, negative-pressure drainage tube air outlet (6).
Claims (3)
1. an internal combustion engine negative pressure drainage device is provided with negative-pressure drainage tube in suction tude, it is characterized in that: negative-pressure drainage tube passes the air inlet tube wall and is connected with suction tude.
2. internal combustion engine negative pressure drainage device according to claim 1 is characterized in that: the suction port of negative-pressure drainage tube is in the outside of suction tude, and the air outlet is in the inside of suction tude, and the opening direction of air outlet is consistent with the direction of charge air flow.
3. internal combustion engine negative pressure drainage device according to claim 1, the sectional area of cylindrical tube that it is characterized in that place, negative-pressure drainage tube air outlet is less than the sectional area of suction tude gas-entered passageway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201256631U CN201100191Y (en) | 2007-07-25 | 2007-07-25 | Gas engine negative pressure flow guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201256631U CN201100191Y (en) | 2007-07-25 | 2007-07-25 | Gas engine negative pressure flow guider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201100191Y true CN201100191Y (en) | 2008-08-13 |
Family
ID=39936725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201256631U Expired - Fee Related CN201100191Y (en) | 2007-07-25 | 2007-07-25 | Gas engine negative pressure flow guider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201100191Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018027536A1 (en) * | 2016-08-09 | 2018-02-15 | 孟三中 | Air booster |
-
2007
- 2007-07-25 CN CNU2007201256631U patent/CN201100191Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018027536A1 (en) * | 2016-08-09 | 2018-02-15 | 孟三中 | Air booster |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080813 |