CN102305159A - Engine dual-fuel plastic air inlet manifold - Google Patents
Engine dual-fuel plastic air inlet manifold Download PDFInfo
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- CN102305159A CN102305159A CN201110248640A CN201110248640A CN102305159A CN 102305159 A CN102305159 A CN 102305159A CN 201110248640 A CN201110248640 A CN 201110248640A CN 201110248640 A CN201110248640 A CN 201110248640A CN 102305159 A CN102305159 A CN 102305159A
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- intake manifold
- air
- air flue
- air inlet
- pressure stabilizing
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Abstract
The invention discloses an engine dual-fuel plastic air inlet manifold, which sequentially comprises an air inlet header pipe (7), a pressure stabilizing cavity (11) and a 6-shaped air passage (5), wherein the air inlet end of the air inlet header pipe is provided with a throttle valve body connecting flange (6), and the air outlet end of the air inlet header pipe is communicated with the pressure stabilizing cavity; the air inlet end of the air passage is communicated with the pressure stabilizing cavity, and the air outlet end of the air passage is provided with a cylinder cover connecting flange (1); each air passage corresponds to a fuel oil injection port (2) and a fuel gas injection port (4), and the fuel oil injection port is integrated on the cylinder cover connecting flange; and the air passage has a variable cross section, the diameter of the equivalent cross section of the air passage close to the pressure stabilizing cavity is larger, the diameter of the equivalent cross section of the air passage close to the cylinder cover flange is smaller, and a transition section is in smooth transition. The engine dual-fuel plastic air inlet manifold is simple in structure, high in generality, and convenient to mount and maintain, effectively improves medium and low speed torque of the engine and meets the power requirement at a high speed on the premise of not using a variable air inlet system, and has high cost performance.
Description
Technical field
The invention belongs to engine art, be specifically related to a kind of motor double fuel plastic air intake manifold.
Background technique
Along with industrial technology and expanding economy, automobile has become the very universal and important means of transportation of people.The demand of energy source of car is increasing, and the fuel of motor car engine also is tending towards variation.Motor fuel has liquid fuel and vaporized fuel at present, and liquid fuel mainly is gasoline and diesel oil; Vaporized fuel has CNG (compressed natural gas), LPG (liquefied petroleum gas (LPG)), methyl alcohol, hydrogen fuel etc.The Traditional engine intake manifold has only a kind of propellant spray mouth, can only use liquid fuel or can only use vaporized fuel.In view of the diversity of motor fuel, the present invention provides a double-fuel inlet manifold, makes the user select suitable motor fuel according to the Environmental Conditions of locality and the Economy of fuel.
Intake manifold is the vitals of motor, and its significance is particularly evident in naturally aspirated engine.The structure of intake manifold and air flue parameter can directly influence performances such as the power character, fuel economy of motor.
Summary of the invention
It is dual-purpose mostly to be that to present minicar the merchant takes advantage of, and requires motor that bigger moment of torsion output is arranged under middle and slow speed of revolution; Motor fuel is tending towards variation; The Environmental Conditions of various places vehicle is different, environmental requirement is different, fuel economy is different; The object of the invention be to provide a kind of simple in structure, versatility good, install and overhaul high performance-price ratio double fuel plastic air intake manifold easily.
Technical solution of the present invention is (referring to an accompanying drawing): a kind of motor double fuel plastic air intake manifold comprises intake manifold (7), pressure stabilizing cavity (11) and " 6 " font air flue (5) successively; Said intake manifold's (7) suction port end is provided with throttle body adpting flange (6), and said intake manifold's (7) air outlet end communicates with said pressure stabilizing cavity (11); The suction port end of said air flue (5) communicates with said pressure stabilizing cavity (11), and the air outlet end of said air flue (5) is provided with cylinder cap adpting flange (1); A corresponding fuel injection mouth (2) of each air flue (5) and a combustion gas spray mouth (4), said fuel injection mouth (2) is integrated on the said cylinder cap adpting flange (1); Said air flue (5) adopts the variable cross section design, and its end air flue representative section diameter near pressure stabilizing cavity is bigger, and less near an end air flue representative section diameter of cylinder cap flange, changeover portion is for seamlessly transitting.
Further, said combustion gas spray mouth (4) is tangent with said air flue (5).
Further, said throttle body adpting flange (6) is inclined upwardly.
Further, said intake manifold (7) is provided with PCV interface and Valve EGR interface (10).
Further, said intake manifold (7) is provided with the EGR pipe.
Further, said air flue (5) is about 59 ° with the angle of said cylinder cap adpting flange (1), and said fuel injection mouth (2) is about 19 ° with the angle of said air flue (5).
Further, said air flue (5) is provided with oily rail erection support (3).
Further, said air flue (5) length is greater than 600mm.
The present invention compared with prior art has following advantage:
(1) " 6 " of the present invention font air passage structure adopts the variable cross section design, and its end air flue representative section diameter near pressure stabilizing cavity is bigger, and less near an end air flue representative section diameter of cylinder cap flange, changeover portion is for seamlessly transitting.Make intake manifold under the prerequisite of not using variable volume intake system, improve the power requirements when low speed torque satisfies high speed again simultaneously in the motor effectively, realize high performance-price ratio.Manifold simple in structure, with low cost.
(2) integrated fuel injection mouth of intake manifold of the present invention and combustion gas spray mouth can be selected to use vaporized fuel or liquid fuel according to the Economy of Environmental Conditions and fuel, and the versatility of manifold is good.Combustion gas spray mouth is reserved on air flue and is tangential on air flue, and having avoided in the past influences the problem of intake efficiency because combustion gas spray mouth forms the interference in air flow that certain angle causes perpendicular to air flue or with air flue.
(3) in the car load environment, the throttle body adpting flange of the intake manifold of the present invention several angle that is inclined upwardly, having avoided when cold snap throttle body place ponding to freeze influences the normal operation of motor.
(4) EGR pipe of the present invention, PDV interface, Valve EGR interface all are distributed on the intake manifold, the gas that helps getting into intake manifold by each passage be assigned to uniformly in 4 air flues after fresh air fully mixes.
Description of drawings
Fig. 1 is the double fuel plastic air intake manifold schematic representation of the embodiment of the invention;
Fig. 2 is the embodiment of the invention " a 6 " font air passage structure schematic representation;
Fig. 3 is the fuel injection mouth and the combustion gas spray bicker degree design diagram of the embodiment of the invention.
Figure number explanation: 1-cylinder cap adpting flange, 2-fuel injection mouth, 3-oil rail erection support, 4-combustion gas spray mouth, 5-" 6 " font air flue, 6-throttle body adpting flange, 7-intake manifold, 8-PCV interface, 9-EGR pipe, 10-Valve EGR interface, 11-pressure stabilizing cavity.
Embodiment
Below with embodiments of the present invention are described with reference to the accompanying drawings.
As shown in Figure 1, the motor double fuel plastic air intake manifold of present embodiment comprises intake manifold 7, pressure stabilizing cavity 11 and 4 " 6 " font air flues 5 (number of air flue is decided according to concrete condition) successively; Said intake manifold's 7 suction port end is provided with throttle body adpting flange 6, and said intake manifold's 7 air outlet end communicates with said pressure stabilizing cavity 11; The suction port end of said air flue 5 communicates with said pressure stabilizing cavity 11, and the air outlet end of said air flue 5 is provided with cylinder cap adpting flange 1; Each air flue 5 a corresponding fuel injection mouth 2 and combustion gas spray mouth 4, said fuel injection mouth 2 is integrated on the said cylinder cap adpting flange 1; Said air flue 5 adopts the variable cross section design, and its end air flue representative section diameter near pressure stabilizing cavity is bigger, and less near an end air flue representative section diameter of cylinder cap flange, changeover portion is for seamlessly transitting.
As shown in Figure 2, intake manifold adopts " 6 " font air passage structure, makes it under limited space, to have guaranteed＞airway length of 600mm the moment of torsion when improving the motor middle and slow speed of revolution effectively.4 air flues connect pressure stabilizing cavity and cylinder cap adpting flange, and for taking into account the power output under the high rotating speed, the intake manifold air flue adopts the variable cross section design.End air flue representative section diameter near pressure stabilizing cavity is bigger, and less at the end air flue representative section diameter near the cylinder cap flanged surface, changeover portion seamlessly transits.The design of this air flue makes intake manifold under the prerequisite of not using VGIS (Variable Geometric Intake System variable-geometry gas handling system), has improved the moment of torsion of middle and slow speed of revolution effectively, the power output when also having guaranteed high rotating speed; Owing to do not use variable volume intake system, this manifold structure is simple relatively, with low cost simultaneously.
Integrated 4 the fuel injection mouths of intake manifold and 4 combustion gas spray mouths, the corresponding fuel injection mouth of each air flue and a combustion gas spray mouth.The fuel injection mouth is integrated on the cylinder cap adpting flange.As shown in Figure 3, the angle of air flue and cylinder cap adpting flange is about 59 °, and the angle β of fuel injection mouth and air flue is about 19 °.Oily rail erection support 3 is arranged on the manifold, and oily rail is directly fixed on the manifold, has guaranteed the oil nozzle installation precision, is that fuel oil better atomizes, and oil inflame is more abundant.The installation and the maintenance of convenient simultaneously oily rail and oil nozzle.Combustion gas spray mouth is reserved on air flue, can select whether to use combustion gas spray mouth according to the market demand.Combustion gas spray mouth 4 is tangential on air flue 5, has avoided in the past because combustion gas spray mouth forms the interference in air flow that certain angle causes, the problem that influences intake efficiency perpendicular to air flue or with air flue.
Fresh air gets into pressure stabilizing cavity by the intake manifold, and reasonably the design of pressure stabilizing cavity structure and volume can be assigned in 4 air flues fresh air uniformly.Intake manifold's the other end has the throttle body adpting flange.In the past, mostly the throttle body adpting flange was vertical in horizontal plane or slightly downward-sloping after manifold installs to car load, and such design is prone to cause under the cold snap throttle body aditus laryngis place to freeze, and causes the motor cisco unity malfunction.Throttle body adpting flange 6 of the present invention is inclined upwardly, and avoids the phenomenon that ponding freezes at the throttle body place.
For reducing the discharging of oxynitrides, manifold is provided with EGR (Exhaust Gas Recirculation exhaust gas recirculation) pipe.EGR pipe, PCV (Positive Crankcase Ventilation positive crankcase ventilation (PCV)) interface, Valve EGR interface 10 all are distributed on the intake manifold, are assigned to uniformly in 4 air flues after being beneficial to the gas that gets into intake manifold by each passage and fresh air fully mixing.
Double fuel plastic air intake manifold provided by the invention can satisfy the intake manifold of following requirement simultaneously:
1) can effectively improve low speed output torque in the motor, take into account the high-speed power requirement simultaneously;
2) adhere to low-cost theory, strict control intake manifold cost;
3) take into account environmental requirement, reduce the discharging of oxynitrides;
4) realize the optional of liquid fuel and vaporized fuel.
The present invention is not limited to the protection content that claim and specific embodiment are addressed, so long as any invention of creating out according to design of the present invention all should belong within protection scope of the present invention.
Claims (8)
1. a motor double fuel plastic air intake manifold is characterized in that: comprise intake manifold (7), pressure stabilizing cavity (11) and " 6 " font air flue (5) successively; Said intake manifold's (7) suction port end is provided with throttle body adpting flange (6), and said intake manifold's (7) air outlet end communicates with said pressure stabilizing cavity (11); The suction port end of said air flue (5) communicates with said pressure stabilizing cavity (11), and the air outlet end of said air flue (5) is provided with cylinder cap adpting flange (1); A corresponding fuel injection mouth (2) of each air flue (5) and a combustion gas spray mouth (4), said fuel injection mouth (2) is integrated on the said cylinder cap adpting flange (1); Said air flue (5) adopts the variable cross section design, and its end air flue representative section diameter near pressure stabilizing cavity is bigger, and less near an end air flue representative section diameter of cylinder cap flange, changeover portion is for seamlessly transitting.
2. motor double fuel plastic air intake manifold according to claim 1 is characterized in that: said combustion gas spray mouth (4) is tangent with said air flue (5).
3. motor double fuel plastic air intake manifold according to claim 1 is characterized in that: said throttle body adpting flange (6) is inclined upwardly.
4. motor double fuel plastic air intake manifold according to claim 1 is characterized in that: said intake manifold (7) is provided with PCV interface and Valve EGR interface (10).
5. motor double fuel plastic air intake manifold according to claim 1 is characterized in that: said intake manifold (7) is provided with the EGR pipe.
6. motor double fuel plastic air intake manifold according to claim 1 is characterized in that: said air flue (5) is about 59 ° with the angle of said cylinder cap adpting flange (1), and said fuel injection mouth (2) is about 19 ° with the angle of said air flue (5).
7. motor double fuel plastic air intake manifold according to claim 1 is characterized in that: said air flue (5) is provided with oily rail erection support (3).
8. motor double fuel plastic air intake manifold according to claim 1 is characterized in that: said air flue (5) length is greater than 600mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110248640A CN102305159A (en) | 2011-08-26 | 2011-08-26 | Engine dual-fuel plastic air inlet manifold |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110248640A CN102305159A (en) | 2011-08-26 | 2011-08-26 | Engine dual-fuel plastic air inlet manifold |
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| CN102305159A true CN102305159A (en) | 2012-01-04 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850830A (en) * | 2012-11-28 | 2014-06-11 | 上海汽车集团股份有限公司 | Branch air pipe variable section pressurizing type air inlet manifold, engine air inlet system and engine |
| CN104454264A (en) * | 2014-12-22 | 2015-03-25 | 溧阳市超强链条制造有限公司 | Modified structure of S495 diesel engine air inlet pipe |
| CN112145328A (en) * | 2020-10-22 | 2020-12-29 | 河北工业大学 | Oil spout base that FSAE race car was used |
| CN112254969A (en) * | 2020-09-11 | 2021-01-22 | 北京动力机械研究所 | Gas collecting device capable of uniformly feeding gas |
| CN114645809A (en) * | 2021-05-25 | 2022-06-21 | 长城汽车股份有限公司 | Throttle valve icing prevention structure, control method and vehicle |
| CN115419501A (en) * | 2022-10-19 | 2022-12-02 | 天津大学 | Engine combustion system with air inlet channel, cylinder cover and combustion chamber in cooperation |
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| CN200955464Y (en) * | 2006-09-05 | 2007-10-03 | 沈阳华晨金杯汽车有限公司 | Engine novel air-intake manifold branch |
| CN101131138A (en) * | 2007-09-27 | 2008-02-27 | 重庆长安汽车股份有限公司 | Intake manifold of dual-fuel engine |
| WO2008153213A1 (en) * | 2007-06-15 | 2008-12-18 | Toyota Jidosha Kabushiki Kaisha | Waterproof connecting structure for pipe |
| CN201486703U (en) * | 2009-08-17 | 2010-05-26 | 重庆小康汽车产业（集团）有限公司 | Dual-fuel gas inlet manifold assembly of engine |
| CN102116227A (en) * | 2011-03-30 | 2011-07-06 | 重庆长安汽车股份有限公司 | Connecting structure of intake manifold and vacuum boosting pipe of gasoline engine |
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2011
- 2011-08-26 CN CN201110248640A patent/CN102305159A/en active Pending
Patent Citations (5)
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| CN200955464Y (en) * | 2006-09-05 | 2007-10-03 | 沈阳华晨金杯汽车有限公司 | Engine novel air-intake manifold branch |
| WO2008153213A1 (en) * | 2007-06-15 | 2008-12-18 | Toyota Jidosha Kabushiki Kaisha | Waterproof connecting structure for pipe |
| CN101131138A (en) * | 2007-09-27 | 2008-02-27 | 重庆长安汽车股份有限公司 | Intake manifold of dual-fuel engine |
| CN201486703U (en) * | 2009-08-17 | 2010-05-26 | 重庆小康汽车产业（集团）有限公司 | Dual-fuel gas inlet manifold assembly of engine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850830A (en) * | 2012-11-28 | 2014-06-11 | 上海汽车集团股份有限公司 | Branch air pipe variable section pressurizing type air inlet manifold, engine air inlet system and engine |
| CN104454264A (en) * | 2014-12-22 | 2015-03-25 | 溧阳市超强链条制造有限公司 | Modified structure of S495 diesel engine air inlet pipe |
| CN112254969A (en) * | 2020-09-11 | 2021-01-22 | 北京动力机械研究所 | Gas collecting device capable of uniformly feeding gas |
| CN112254969B (en) * | 2020-09-11 | 2022-10-28 | 北京动力机械研究所 | Gas collecting device capable of uniformly feeding gas |
| CN112145328A (en) * | 2020-10-22 | 2020-12-29 | 河北工业大学 | Oil spout base that FSAE race car was used |
| CN114645809A (en) * | 2021-05-25 | 2022-06-21 | 长城汽车股份有限公司 | Throttle valve icing prevention structure, control method and vehicle |
| CN115419501A (en) * | 2022-10-19 | 2022-12-02 | 天津大学 | Engine combustion system with air inlet channel, cylinder cover and combustion chamber in cooperation |
| CN115419501B (en) * | 2022-10-19 | 2024-02-20 | 天津大学 | Engine combustion system with cooperative air inlet channel, cylinder cover and combustion chamber |
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Application publication date: 20120104 |