CN103867288A - Variable return pressure intake air resonator of internal combustion engine - Google Patents
Variable return pressure intake air resonator of internal combustion engine Download PDFInfo
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- CN103867288A CN103867288A CN201410077754.7A CN201410077754A CN103867288A CN 103867288 A CN103867288 A CN 103867288A CN 201410077754 A CN201410077754 A CN 201410077754A CN 103867288 A CN103867288 A CN 103867288A
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- combustion engine
- pressure intake
- hydraucone
- circular ring
- engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention discloses a variable return pressure intake air resonator of an internal combustion engine. The variable return pressure intake air resonator comprises a vent pipe, wherein the inner diameter of one end of the vent pipe is gradually reduced, and the vent pipe is venturi-shaped; the vent pipe is internally provided with a hydraucone-shaped circular ring; the back side of the hydraucone-shaped circular ring and one end of a hollow cylindrical pipe are fixedly connected into a whole; the inner edge port of a venturi-shaped port is of a cutter point shape; the lower port of the inner edge of the hydraucone-shaped circular ring is of a cutter point shape; the cylindrical pipe is connected with the outer edge of the hydraucone-shaped circular ring; the outer wall of the cylindrical pipe is fixedly connected with a fixed plate; the cylindrical pipe is connected with the inner wall of the vent pipe by virtue of the fixed plate; the gradients of the venturi-shaped port and the hydraucone-shaped circular ring are 30-50 degrees. The variable return pressure intake air resonator can be used for promoting air and a fuel in a cylinder of the internal combustion engine to generate a gas mixture with optimized air fuel ratio so as to realize sufficient burning, improving the explosion wave, conducing to improvement on the power of an engine, reducing the emission load of harmful tail gas, optimizing the sound field distribution in the engine, reducing air inlet noises, improving the adaptive capability of the engine and improving the heat-to-power conversion efficiency.
Description
Technical field
The present invention relates to air-intake device for internal combustion engine, specifically a kind of internal-combustion engine variable back pressure Intake resonator being arranged in suction tude.
Background technique
Improve the power per liter of internal-combustion engine, can improve effect of internal-combustion engine, strengthening air inflow is a solution, if internal-combustion engine adopts natural aspiration method, improve again air inflow, can be by improving scavenging efficiency, the flowing velocity that improves gas improves the intake and exhaust amount in the unit time.
The exhaust of internal-combustion engine is due to the working principle of motor, the blast of exhaust is that a ripple one rolling land pulse is discharged, each ripple of discharging blast all can be at the larger pressure of outlet pipe internal form, in the time that this ripple blast starts outwards discharge in outlet pipe, will form a negative pressure, namely said back pressure to a rear ripple blast.Back pressure is larger, internal combustion engine at slow-revving blast owing to being subject to the impact of last ripple blast, will be sooner by the negative pressure sucking-off of last ripple waviness, that is to say that exhaust effect is better, but in the time that engine arrives high revolution, because the internal diameter of outlet pipe is less, cause the gas temperature in outlet pipe to increase, not only next ripple blast of sucking-off as early as possible of gas expansion pressure, on the contrary the discharge of each wave is caused to suitable resistance, and interact between each ripple blast, different rotating speeds causes exhaust not smoothly, thereby reduce the aeration quantity of internal-combustion engine, the charging efficiency of internal-combustion engine single cylinder is reduced, less air impact air fuel ratio in firing chamber, make incomplete combustion, cause the discharge amount of waste gas larger, power declines, oil consumption increases, in the time that motor starts air inlet program, intake valve slightly lags behind and just opens, within this utmost point short time, initial air inlet heats up because being obstructed, volumetric expansion and rebounding, and follow-up air inlet and bounce-back gas collisions form pulse phenomenon, this phenomenon can affect the aeration quantity of cylinder, burning is had some setbacks, cause engine power to decline, also increased the discharge of exhaust pollutant.
Existing improvement air-intake of combustion engine, exhaust situation, improve the method for scavenging efficiency, normally the outlet pipe of combustion motor is transformed, for example mechanical type turbo charging installation, utilization reaches the strength of certain exhaust and carrys out rotary turbine, air is forced overcome resistance after supercharging to send into cylinder through menifold, can improve the aeration quantity of cylinder, but this apparatus structure complexity, also need Special temperature resistant material, manufacture cost is high, and in the time of internal-combustion engine low-speed running, this mechanical type turbo charging installation does not have the effect of supercharging yet.
Summary of the invention
The object of the invention is the air inlet backflow pulse problem existing for above-mentioned motor, and provide one can promote gas handling system smoothness, improve the internal-combustion engine variable back pressure Intake resonator of engine power performance.
The object of the invention is to realize by following technological scheme:
A kind of internal-combustion engine variable back pressure Intake resonator, comprise that one end is internal diameter convergent, be the breathing pipe of venturi shaped, in described breathing pipe, be provided with toroidal annulus, one end of the dorsal part of toroidal annulus and a hollow cylindrical tube fixes as one, the interior bead of described venturi shaped port is knife edge shape, and in described toroidal annulus, the lower end mouth on edge is knife edge shape.
Described cylindrical tube is connected with the outer of toroidal annulus.
The outer wall of described cylindrical tube is connected with fixed plate, and cylindrical tube is connected with the inwall of breathing pipe by fixed plate.
The gradient of described venturi shaped port, toroidal annulus is 30～50o, and preferred gradient is 46o.
The present invention is by the pull of vacuum of motor own, ambient air is sucked, when air stream produces high velocity air during through convergent breathing pipe cutting edge of a knife or a sword mouth, and gas moment is amplified, mineralization pressure is poor, produce high velocity air propelling pressure, can stop the part backflow pulse that engine charge produces, toroidal annulus the form venturi shaped same with cylindrical tube arranging in breathing pipe, further stop the part backflow pulse that engine charge produces from the middle part of breathing pipe, from suppressing near aspect, two, middle part in breathing pipe tube wall inner side and pipe the backflow pulse that engine charge produces, and improve the aeration quantity of unit time cylinder by the rebounding force of pulse back pressure, the mixed gas that promotes gas gas in the jar and fuel oil to produce optimization air fuel ratio fully burns, improve explosive blast, contribute to improve engine power, reduce Tail Gas discharge amount, to energy-conservation, environmental protection all has positive effect, meanwhile, this installation optimization sound field in thermoacoustic engine distribute, reduce inflow noise, improve the adaptive ability of motor, improve hot merit conversion efficiency.
Accompanying drawing explanation
Fig. 1 is the equipped structural representation of embodiment of the present invention internal-combustion engine variable back pressure Intake resonator and suction tude.
In figure, 1. interior bead 3. annulus 4. cylindrical tube 5. lower end mouth 6. fixed plate 7. suction tude of breathing pipe 2..
Embodiment
Below in conjunction with drawings and Examples, content of the present invention is further elaborated, but is not limitation of the invention.
Embodiment:
With reference to Fig. 1, a kind of internal-combustion engine variable back pressure Intake resonator, comprise that one end is internal diameter convergent, be the breathing pipe 1 of venturi shaped, in described breathing pipe 1, be provided with toroidal annulus 3, one end of the dorsal part of toroidal annulus 3 and a hollow cylindrical tube 4 fixes as one, and the interior bead 2 of described venturi shaped port is knife edge shape, and the lower end mouth 5 on described toroidal annulus 3 interior edges is knife edge shape.
Described cylindrical tube 4 is connected with the outer of toroidal annulus 3.
The outer wall of described cylindrical tube 4 is connected with fixed plate 6, and cylindrical tube 4 is connected with the inwall of breathing pipe 1 by fixed plate 6.
Arrow in figure represents airflow direction.
The internal diameter of the lower end mouth 5 on the interior bead 2 of venturi shaped port and annulus 3 interior edges is adjusted size according to the difference of engine swept volume, and the gradient of venturi shaped port, toroidal annulus 3 is 30～50o, and this routine gradient is 46o, can reach good effect.
As shown in Figure 1, this device is arranged in suction tude 7, be close to suction tude 7 inwalls, the lower end mouth 5 on the interior bead 2 of venturi shaped port and annulus 3 interior edges is all towards motor end, when work, by the pull of vacuum of motor own, ambient air is sucked, when air stream produces high velocity air during through convergent breathing pipe 1 cutting edge of a knife or a sword mouth, and gas moment is amplified, mineralization pressure is poor, produce high velocity air propelling pressure, stop the part backflow pulse that engine charge produces, toroidal annulus 3 formation same with cylindrical tube 4 venturi shaped of breathing pipe 1 interior setting, further stop the part backflow pulse that engine charge produces from the middle part of breathing pipe 1, from suppressing near aspect, two, middle part in breathing pipe 1 tube wall inner side and pipe the backflow pulse that engine charge produces, and improve the aeration quantity of unit time cylinder by the rebounding force of pulse back pressure, meanwhile, this installation optimization sound field in thermoacoustic engine distribute, reduced inflow noise.
Claims (5)
1. an internal-combustion engine variable back pressure Intake resonator, it is characterized in that: comprise that one end is internal diameter convergent, be the breathing pipe of venturi shaped, in described breathing pipe, be provided with toroidal annulus, one end of the dorsal part of toroidal annulus and a hollow cylindrical tube fixes as one, the interior bead of described venturi shaped port is knife edge shape, and in described toroidal annulus, the lower end mouth on edge is knife edge shape.
2. internal-combustion engine variable back pressure Intake resonator according to claim 1, is characterized in that: described cylindrical tube is connected with the outer of toroidal annulus.
3. internal-combustion engine variable back pressure Intake resonator according to claim 1, is characterized in that: the outer wall of described cylindrical tube is connected with fixed plate, and cylindrical tube is connected with the inwall of breathing pipe by fixed plate.
4. internal-combustion engine variable back pressure Intake resonator according to claim 1, is characterized in that: the gradient of described venturi shaped port, toroidal annulus is 30～50o.
5. internal-combustion engine variable back pressure Intake resonator according to claim 1, is characterized in that: the gradient of described venturi shaped port, toroidal annulus is 46o.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410077754.7A CN103867288A (en) | 2014-03-05 | 2014-03-05 | Variable return pressure intake air resonator of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410077754.7A CN103867288A (en) | 2014-03-05 | 2014-03-05 | Variable return pressure intake air resonator of internal combustion engine |
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| Publication Number | Publication Date |
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| CN103867288A true CN103867288A (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410077754.7A Pending CN103867288A (en) | 2014-03-05 | 2014-03-05 | Variable return pressure intake air resonator of internal combustion engine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107241668A (en) * | 2017-05-17 | 2017-10-10 | 西北工业大学 | A kind of strong generating device and method based on explosive combustion |
| GB2566143A (en) * | 2017-06-22 | 2019-03-06 | Bosch Gmbh Robert | Venturi nozzle, combustion device incorporating same and building heating system having such a combustion device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07253066A (en) * | 1994-03-16 | 1995-10-03 | Hino Motors Ltd | Intake air throttling structure of internal combustion engine |
| US5628287A (en) * | 1994-09-30 | 1997-05-13 | Siemens Electric Limited | Adjustable configuration noise attenuation device for an air induction system |
| JP2001059458A (en) * | 1999-06-16 | 2001-03-06 | Aichi Mach Ind Co Ltd | Intake manifold for internal combustion engine |
| CN2576987Y (en) * | 2002-10-28 | 2003-10-01 | 孟启平 | Engine air-intake venturi apparatus |
| KR100786297B1 (en) * | 2006-09-12 | 2007-12-21 | 김수원 | Engine inhalation device |
| JP2008159458A (en) * | 2006-12-25 | 2008-07-10 | Toyota Motor Corp | Lamp structure |
| CN203847237U (en) * | 2014-03-05 | 2014-09-24 | 刘华 | Return-pressure-variable air inlet resonator for internal combustion engine |
-
2014
- 2014-03-05 CN CN201410077754.7A patent/CN103867288A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07253066A (en) * | 1994-03-16 | 1995-10-03 | Hino Motors Ltd | Intake air throttling structure of internal combustion engine |
| US5628287A (en) * | 1994-09-30 | 1997-05-13 | Siemens Electric Limited | Adjustable configuration noise attenuation device for an air induction system |
| JP2001059458A (en) * | 1999-06-16 | 2001-03-06 | Aichi Mach Ind Co Ltd | Intake manifold for internal combustion engine |
| CN2576987Y (en) * | 2002-10-28 | 2003-10-01 | 孟启平 | Engine air-intake venturi apparatus |
| KR100786297B1 (en) * | 2006-09-12 | 2007-12-21 | 김수원 | Engine inhalation device |
| JP2008159458A (en) * | 2006-12-25 | 2008-07-10 | Toyota Motor Corp | Lamp structure |
| CN203847237U (en) * | 2014-03-05 | 2014-09-24 | 刘华 | Return-pressure-variable air inlet resonator for internal combustion engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107241668A (en) * | 2017-05-17 | 2017-10-10 | 西北工业大学 | A kind of strong generating device and method based on explosive combustion |
| CN107241668B (en) * | 2017-05-17 | 2019-05-24 | 西北工业大学 | A kind of strong generating device and method based on explosive combustion |
| GB2566143A (en) * | 2017-06-22 | 2019-03-06 | Bosch Gmbh Robert | Venturi nozzle, combustion device incorporating same and building heating system having such a combustion device |
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Application publication date: 20140618 |
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