CN103603754B - A kind of grouping cavate air inlet device altogether - Google Patents
A kind of grouping cavate air inlet device altogether Download PDFInfo
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- CN103603754B CN103603754B CN201310625204.XA CN201310625204A CN103603754B CN 103603754 B CN103603754 B CN 103603754B CN 201310625204 A CN201310625204 A CN 201310625204A CN 103603754 B CN103603754 B CN 103603754B
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Abstract
A kind of grouping cavate air inlet device altogether, comprise air conveying seat, fuel gas transmission seat, dividing plate is provided with in air conveying seat, air carries seat to be separated into a consistent cavity of structure by this dividing plate, No. two cavitys, fuel gas transmission seat is positioned at the top of air conveying seat, its inside offers the hollow cavity communicated with gas header pipe, the bottom of hollow cavity offers multiple with its connection and the consistent nozzle mounting hole of structure, No. two nozzle mounting holes, a nozzle mounting hole, in No. two nozzle mounting holes, correspondence is provided with a gas nozzle, No. two gas nozzles, a gas nozzle, the fuel channel that the outlet side of No. two gas nozzles is all offered by correspondence and a gas diversion pipe, the inlet end of No. two gas diversion pipes communicates, a gas diversion pipe, the outlet side of No. two gas diversion pipes passes a cavity respectively, extend in corresponding intake duct after No. two cavitys.The design not only reduces air inlet resistance, and it is unstable to avoid engine power output.
Description
Technical field
The present invention relates to a kind of engine air inlet tube, particularly relate to a kind of grouping cavate air inlet device altogether, be specifically applicable to the intake resistance of reduction air, avoid engine power output unstable.
Background technique
Suction tude is a part for motor, is the passage that air or inflammable mixture enter in engine cylinder, directly affects motor, particularly the charging efficiency of premixed motor and cylinder by cylinder uniformity.The major design of current suction tude is the design proposal of air inlet tube, intake manifold and air intake branch, the design attitude of suction port has front end airflow, middle air inlet and biased air inlet, for premixed motor, the position of suction port is many in centre, and this is conducive to the distributed uniform of inflammable mixture.Premixed motor refers to that inflammable mixture completes mixing entering before in cylinder, is also just complete mixing intake manifold or intake manifold.The fuel gas supply mode of intake manifold's mixing is single-point discharge formula, and the fuel gas supply mode of manifold mixing is Multi-point jetting type (every cylinder injection unit).Multi-point jetting type is faster to the response of motor compared with single-point discharge formula, more accurate to the control of air fuel ratio, and being conducive to the raising of engine operability and Economy, is the main way of current premixed motor.
Chinese patent application publication No. is CN102337994A, Shen Qing Publication day is that the patent of invention on February 1st, 2012 discloses a kind of manifold type air inlet pipe, this suction tude forms by by pressure stabilizing cavity and intake manifold, pressure stabilizing cavity is at the middle part of suction tude, pressure stabilizing cavity upper center has suction port, and intake manifold is distributed on pressure stabilizing cavity near engine cylinder cap side.Although in this invention, the suction port design proposal be positioned in the middle part of pressure stabilizing cavity can ensure the uniformity that air flows and stability, but still there is following defect:
1, in this invention, suction tude is provided with the intake manifold corresponding with each cylinder, the existence of these intake manifold increases the circulating pathway of air in intake process, add intake resistance, easily cause charging efficiency to reduce, thus affect the power performance of motor;
2, in this invention, combustion gas enters the suction port of firing chamber via the honeycomb duct be fitted in intake manifold from outside, controller for gas is positioned at the outside of suction tude, pipeline between its outlet side and the enterprising air flue of engine cylinder cap is longer, easily cause and still have abundant residues combustion gas enter cylinder and affect air fuel ratio after fuel gas shutoff, thus it is unstable to cause engine power to export.
Summary of the invention
The object of the invention is to overcome the problem that air inlet resistance is comparatively large, engine power exports shakiness existed in prior art, provide a kind of air inlet resistance less, and engine power can be avoided to export unstable grouping cavate air inlet device altogether.
For realizing above object, technological scheme of the present invention is as follows:
A kind of grouping cavate air inlet device altogether, comprise air conveying seat, gas diversion pipe, the inlet end of described air conveying seat communicates with air header, the outlet side of air conveying seat communicates with the intake duct that cylinder covers, the inlet end of described gas diversion pipe communicates with gas header pipe, and the outlet side of gas diversion pipe passes after air carries seat and extends in corresponding intake duct;
The inside of described air conveying seat is provided with dividing plate, air carries seat to be separated into a consistent cavity of structure, No. two cavitys by this dividing plate, described gas diversion pipe comprises a consistent gas diversion pipe of quantity, No. two gas diversion pipes, the inlet end of a described gas diversion pipe, No. two gas diversion pipes all communicates with gas header pipe, extend to after the outlet side of a described gas diversion pipe passes a cavity in corresponding intake duct, extend in corresponding intake duct after the outlet side of described No. two gas diversion pipes passes No. two cavitys.
The quantity of a described gas diversion pipe, No. two gas diversion pipes is N root, and described N is integer, and 2≤N≤6.
Described N is 3.
Described air inlet device also comprises fuel gas transmission seat, gas nozzle, described fuel gas transmission seat is arranged on the top of air conveying seat, and the inside of fuel gas transmission seat offers the hollow cavity communicated with gas header pipe, two ends bottom described hollow cavity offer a consistent nozzle mounting hole of multiple structure respectively, No. two nozzle mounting holes, described gas nozzle comprises a gas nozzle, No. two gas nozzles, a described gas nozzle, No. two gas nozzle correspondences are arranged on a nozzle mounting hole, in No. two nozzle mounting holes, and a gas nozzle, the inlet end of No. two gas nozzles all communicates with hollow cavity, the outlet side of a gas nozzle is communicated with the inlet end of a gas diversion pipe by the corresponding fuel channel offered, the outlet side of No. two gas nozzles is communicated with the inlet end of No. two gas diversion pipes by the corresponding fuel channel offered.
A described gas nozzle, No. two gas nozzles are all fixed in a nozzle mounting hole, No. two nozzle mounting holes by pressing plate.
A described gas nozzle, No. two gas nozzles are solenoid valve.
Be connected by vibration damper plate between a described adjacent gas diversion pipe, be connected by vibration damper plate between described No. two adjacent gas diversion pipes.
The inlet end of described air conveying seat is communicated with air header by air inlet tube.
Described air conveying seat and fuel gas transmission seat are integral type structure.
Compared with prior art, beneficial effect of the present invention is:
1, in a kind of common cavate air inlet device that divides into groups of the present invention, the inside of air conveying seat is provided with dividing plate, air carries seat to be separated into a consistent cavity of structure, No. two cavitys by this dividing plate, the intake duct that engine cylinder covers by this design is divided into two groups, and often organize the shared cavity of intake duct, packet design makes adjacent two acting cylinders to be independent of each other charging efficiency, chamber design avoids and uses multiple intake manifold altogether, not only reduce the intake resistance of air, ensure that the uniformity of air inlet, and simplify the structure of air conveying seat.Therefore, the present invention not only ensure that the charging efficiency of each cylinder, and reduces the intake resistance of air.
2, in a kind of common cavate air inlet device that divides into groups of the present invention, the top of air conveying seat is provided with fuel gas transmission seat, and the nozzle mounting hole that fuel gas transmission seat is offered, No. two nozzle mounting hole internal fixtion have gas nozzle, this design makes air inlet device be integrated with air induction system and gas inlet system, not only save arrangement space, save cost, and effectively shorten the length of gas diversion pipe, after avoiding fuel gas shutoff, abundant residues fuel enters cylinder affects air fuel ratio, and then it is unstable to cause engine power to export.Therefore, the present invention not only saves arrangement space, has saved cost, and it is unstable to avoid engine power output.
3, be connected by vibration damper plate between adjacent in a kind of common cavate air inlet device that divides into groups of a present invention gas diversion pipe, be connected by vibration damper plate between No. two adjacent gas diversion pipes, this design effectively alleviates the gas diversion pipe vibrations caused because of air-flow panting in intake process.Therefore, the present invention slow down the vibrations of gas diversion pipe.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of air conveying seat, fuel gas transmission seat in Fig. 1.
Fig. 3 is that the A-A of Fig. 1 is to sectional view.
Fig. 4 is the longitudinal sectional view of fuel gas transmission seat in Fig. 1.
Fig. 5 is assembling schematic diagram of the present invention.
In figure: air conveying seat 1, dividing plate 11, cavity 12, No. two cavitys 13, fuel gas transmission seat 2, hollow cavity 21, nozzle mounting hole 22, No. two nozzle mounting holes 23, fuel channel 24, gas diversion pipe 3, gas diversion pipe 31, No. two gas diversion pipes 32, gas nozzle 4, gas nozzle 41, No. two gas nozzles 42, engine cylinder cap 5, intake duct 51, pressing plate 6, air inlet tube 7, vibration damper plates 8.
Embodiment
Illustrate that the present invention is further detailed explanation with embodiment below in conjunction with accompanying drawing.
See figure 1 – Fig. 5, a kind of grouping cavate air inlet device altogether, comprise air conveying seat 1, gas diversion pipe 3, the inlet end of described air conveying seat 1 communicates with air header, the air conveying outlet side of seat 1 communicates with the intake duct 51 on engine cylinder cap 5, the inlet end of described gas diversion pipe 3 communicates with gas header pipe, and the outlet side of gas diversion pipe 3 passes after air carries seat 1 and extends in corresponding intake duct 51;
The inside of described air conveying seat 1 is provided with dividing plate 11, air carries seat 1 to be separated into a consistent cavity 12 of structure by this dividing plate 11, No. two cavitys 13, described gas diversion pipe 3 comprises a consistent gas diversion pipe 31 of quantity, No. two gas diversion pipes 32, a described gas diversion pipe 31, the inlet end of No. two gas diversion pipes 32 all communicates with gas header pipe, extend to after the outlet side of a described gas diversion pipe 31 passes a cavity 12 in corresponding intake duct 51, extend in corresponding intake duct 51 after the outlet side of described No. two gas diversion pipes 32 passes No. two cavitys 13.
The quantity of a described gas diversion pipe 31, No. two gas diversion pipes 32 is N root, and described N is integer, and 2≤N≤6.
Described N is 3.
Described air inlet device also comprises fuel gas transmission seat 2, gas nozzle 4, described fuel gas transmission seat 2 is arranged on the top of air conveying seat 1, and the inside of fuel gas transmission seat 2 offers the hollow cavity 21 communicated with gas header pipe, two ends bottom described hollow cavity 21 offer a consistent nozzle mounting hole 22 of multiple structure respectively, No. two nozzle mounting holes 23, described gas nozzle 4 comprises a gas nozzle 41, No. two gas nozzles 42, a described gas nozzle 41, No. two gas nozzle 42 correspondences are arranged on a nozzle mounting hole 22, in No. two nozzle mounting holes 23, and a gas nozzle 41, the inlet end of No. two gas nozzles all communicates with hollow cavity 21, the outlet side of a gas nozzle 41 is communicated with the inlet end of a gas diversion pipe 31 by the corresponding fuel channel 24 offered, the outlet side of No. two gas nozzles 42 is communicated with the inlet end of No. two gas diversion pipes 32 by the corresponding fuel channel 24 offered.
A described gas nozzle 41, No. two gas nozzles 42 are all fixed in a nozzle mounting hole 22, No. two nozzle mounting holes 23 by pressing plate 6.
A described gas nozzle 41, No. two gas nozzles 42 are solenoid valve.
Be connected by vibration damper plate 8 between a described adjacent gas diversion pipe 31, be connected by vibration damper plate 8 between described No. two adjacent gas diversion pipes 32.
The inlet end of described air conveying seat 1 is communicated with air header by air inlet tube 7.
Described air conveying seat 1 is integral type structure with fuel gas transmission seat 2.
Principle of the present invention is described as follows:
The present invention is integrated with air induction system and gas supply system two functions, at premixed single-fuel engine, has on the duel fuel engine of premixed supply and all can apply.
Air conveying seat 1: in the present invention, the inside of air conveying seat 1 is provided with dividing plate 11, air carries seat 1 to be separated into a consistent cavity 12 of structure by this dividing plate 11, No. two cavitys 13, this design two groups of making intake duct 51 quantity of formation on engine cylinder cover 5 consistent, and often organize the shared cavity of intake duct 51, air from air header is divided into two-way from the inlet end of air conveying seat 1 and enters a cavity 12 respectively, in No. two cavitys 13, then via a cavity 12, No. two cavitys 13 enter in intake duct 51 respectively, packet type design reduces the interference in air flow between adjacent two acting cylinders, ensure that the charging efficiency of each cylinder, altogether cavate design is due to without the need to using multiple intake manifold, reduce the intake resistance of air, ensure that the uniformity of air inlet, also simplify structure and the preparation process of air inlet device simultaneously.
Fuel gas transmission seat 2: because the hollow cavity 21 of fuel gas transmission seat 2 directly communicates with gas header pipe, the combustion gas of certain pressure, temperature can be full of in hollow cavity 21, and hollow cavity 21 and gas nozzle 4, fuel channel 24, gas diversion pipe 3 form a complete blast tube, during work, by the gas nozzle 4 be arranged on bottom hollow cavity 21 by near fuel gas injection to engine combustion chambers mouth, make combustion gas enter in cylinder when aspirating stroke together with air, time for spraying and injection pulse width are realized by controlling gas nozzle 4 by complete machine computer module.
Integrated design: the present invention is provided with fuel gas transmission seat 2 at the top of air conveying seat 1, and in fuel gas transmission seat 2, offer a nozzle mounting hole 22, No. two nozzle mounting holes 23 of fixing controller for gas-gas nozzle 4, this design makes air inlet device be integrated with air induction system and gas inlet system, effectively reduce arrangement space, and be conducive to light-weight design; Meanwhile, this Integration Design also shortens the length of gas diversion pipe 3, has not only effectively saved cost, and decreases the residual combustion gases amount after fuel gas shutoff in gas diversion pipe 3, ensure that air fuel ratio, avoids engine power and exports unstable.
Embodiment 1:
See figure 1 – Fig. 5, a kind of grouping cavate air inlet device altogether, comprise air conveying seat 1, fuel gas transmission seat 2, gas diversion pipe 3, gas nozzle 4, described air conveying seat 1 is integral type structure with fuel gas transmission seat 2, the inlet end of described air conveying seat 1 is communicated with air header by air inlet tube 7, the air conveying outlet side of seat 1 communicates with the intake duct 51 on engine cylinder cap 5, and the inside of air conveying seat 1 is provided with dividing plate 11, air carries seat 1 to be separated into a consistent cavity 12 of structure by this dividing plate 11, No. two cavitys 13, described fuel gas transmission seat 2 is arranged on the top of air conveying seat 1, and the inside of fuel gas transmission seat 2 offers the hollow cavity 21 communicated with gas header pipe, two ends bottom described hollow cavity 21 offer a consistent nozzle mounting hole 22 of multiple structure respectively, No. two nozzle mounting holes 23, described gas diversion pipe 3 comprises a consistent gas diversion pipe 31 of quantity, No. two gas diversion pipes 32, described gas nozzle 4 comprises a gas nozzle 41, No. two gas nozzles 42, a described gas nozzle 41, No. two gas nozzles 42 are solenoid valve, and a gas nozzle 41, No. two gas nozzles 42 are all arranged on a nozzle mounting hole 22 by pressing plate 6 correspondence, in No. two nozzle mounting holes 23, a gas nozzle 41, the inlet end of No. two gas nozzles all communicates with hollow cavity 21, the outlet side of a gas nozzle 41 is communicated with the inlet end of a gas diversion pipe 31 by the corresponding fuel channel 24 offered, the outlet side of No. two gas nozzles 42 is communicated with the inlet end of No. two gas diversion pipes 32 by the corresponding fuel channel 24 offered, extend to after the outlet side of a described gas diversion pipe 31 passes a cavity 12 in corresponding intake duct 51, extend to after the outlet side of described No. two gas diversion pipes 32 passes No. two cavitys 13 in corresponding intake duct 51, and a gas diversion pipe 31, the quantity of No. two gas diversion pipes 32 is N root, described N is integer, and 2≤N≤6, be connected by vibration damper plate 8 between a described adjacent gas diversion pipe 31, be connected by vibration damper plate 8 between described No. two adjacent gas diversion pipes 32.
Claims (9)
1. grouping cavate air inlet device altogether, comprise air conveying seat (1), gas diversion pipe (3), the inlet end of described air conveying seat (1) communicates with air header, the outlet side of air conveying seat (1) communicates with the intake duct (51) on engine cylinder cap (5), the inlet end of described gas diversion pipe (3) communicates with gas header pipe, the outlet side of gas diversion pipe (3) passes after air carries seat (1) and extends in corresponding intake duct (51), it is characterized in that:
The inside of described air conveying seat (1) is provided with dividing plate (11), air carries seat (1) to be separated into a consistent cavity (12) of structure by this dividing plate (11), No. two cavitys (13), described gas diversion pipe (3) comprises a consistent gas diversion pipe (31) of quantity, No. two gas diversion pipes (32), a described gas diversion pipe (31), the inlet end of No. two gas diversion pipes (32) all communicates with gas header pipe, extend to after the outlet side of a described gas diversion pipe (31) passes a cavity (12) in corresponding intake duct (51), extend in corresponding intake duct (51) after the outlet side of described No. two gas diversion pipes (32) passes No. two cavitys (13).
2. one grouping according to claim 1 cavate air inlet device altogether, is characterized in that: the quantity of a described gas diversion pipe (31), No. two gas diversion pipes (32) is N root, and described N is integer, and 2≤N≤6.
3. one grouping according to claim 2 cavate air inlet device altogether, is characterized in that: described N is 3.
4. according to claim 1 ?one grouping cavate air inlet device altogether according to any one of 3, it is characterized in that: described air inlet device also comprises fuel gas transmission seat (2), gas nozzle (4), described fuel gas transmission seat (2) is arranged on the top of air conveying seat (1), and the inside of fuel gas transmission seat (2) offers the hollow cavity (21) communicated with gas header pipe, the two ends of described hollow cavity (21) bottom offer a consistent nozzle mounting hole (22) of multiple structure respectively, No. two nozzle mounting holes (23), described gas nozzle (4) comprises a gas nozzle (41), No. two gas nozzles (42), a described gas nozzle (41), No. two gas nozzle (42) correspondences are arranged on a nozzle mounting hole (22), in No. two nozzle mounting holes (23), and a gas nozzle (41), the inlet end of No. two gas nozzles all communicates with hollow cavity (21), the outlet side of a gas nozzle (41) is communicated with the inlet end of a gas diversion pipe (31) by the corresponding fuel channel (24) offered, the outlet side of No. two gas nozzles (42) is communicated with the inlet end of No. two gas diversion pipes (32) by the corresponding fuel channel (24) offered.
5. one grouping according to claim 4 cavate air inlet device altogether, is characterized in that: a described gas nozzle (41), No. two gas nozzles (42) are all fixed in a nozzle mounting hole (22), No. two nozzle mounting holes (23) by pressing plate (6).
6. one grouping according to claim 4 cavate air inlet device altogether, is characterized in that: a described gas nozzle (41), No. two gas nozzles (42) are solenoid valve.
7. according to claim 1 ?one grouping cavate air inlet device altogether according to any one of 3, it is characterized in that: be connected by vibration damper plate (8) between a described adjacent gas diversion pipe (31), be connected by vibration damper plate (8) between described No. two adjacent gas diversion pipes (32).
8. according to claim 1 ?one grouping cavate air inlet device altogether according to any one of 3, it is characterized in that: the inlet end of described air conveying seat (1) is communicated with air header by air inlet tube (7).
9. the one grouping cavate air inlet device altogether according to any one of claim 1 ?3, is characterized in that: described air conveying seat (1) is integral type structure with fuel gas transmission seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310625204.XA CN103603754B (en) | 2013-12-02 | 2013-12-02 | A kind of grouping cavate air inlet device altogether |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310625204.XA CN103603754B (en) | 2013-12-02 | 2013-12-02 | A kind of grouping cavate air inlet device altogether |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103603754A CN103603754A (en) | 2014-02-26 |
| CN103603754B true CN103603754B (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310625204.XA Active CN103603754B (en) | 2013-12-02 | 2013-12-02 | A kind of grouping cavate air inlet device altogether |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113006985A (en) * | 2019-12-19 | 2021-06-22 | 浙江吉利新能源商用车集团有限公司 | Gas engine air intake system, gas engine and car |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337994A (en) * | 2010-07-16 | 2012-02-01 | 中国第一汽车集团公司 | Manifold type air inlet pipe |
| CN202732171U (en) * | 2012-06-26 | 2013-02-13 | 常州科普动力机械有限公司 | Two-cylinder diesel engine air inlet device |
| CN203640884U (en) * | 2013-12-02 | 2014-06-11 | 东风商用车有限公司 | Packetized cavity-shared gas inlet pipe device |
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| CN103603754A (en) | 2014-02-26 |
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