CN103603754A - Grouped cavity-shared type gas inlet pipe device - Google Patents
Grouped cavity-shared type gas inlet pipe device Download PDFInfo
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- CN103603754A CN103603754A CN201310625204.XA CN201310625204A CN103603754A CN 103603754 A CN103603754 A CN 103603754A CN 201310625204 A CN201310625204 A CN 201310625204A CN 103603754 A CN103603754 A CN 103603754A
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Abstract
A grouped cavity-shared type gas inlet pipe device comprises an air transportation base and a gas transportation base. A partition plate is arranged in the air transportation base, the partition plate divides the air transportation base into a first cavity and a second cavity, and the first cavity and the second cavity are consistent in structure. The gas transportation base is located on the top of the air transportation base, and a hollow inner cavity which is communicated with a gas main pipe is formed inside the gas transportation base. A plurality of first nozzle installation holes and a plurality of second nozzle installation holes are formed in the bottom of the hollow inner cavity, and the first nozzle installation holes and the second nozzle installation holes are communicated with the hollow inner cavity and consistent in structure. First gas nozzles and second gas nozzles are correspondingly arranged in the first nozzle installation holes and the second nozzle installation holes. Gas outlet ends of the first gas nozzles and gas outlet ends of the second gas nozzles are communicated with gas inlet ends of first gas diversion pipes and gas inlet ends of second gas diversion pipes through gas passageways which are correspondingly arranged, and gas outlet ends of the first gas diversion pipes and gas outlet ends of the second gas diversion pipes penetrate through the first cavity and the second cavity respectively and then extend into corresponding gas inlet passageways. Due to the design, not only is the air inlet resistance reduced, but also unstable power outlet of an engine is avoided.
Description
Technical field
The present invention relates to a kind of engine air inlet tube, relate in particular to altogether cavate air inlet device of a kind of grouping, be specifically applicable to reduce air intake resistance, avoid engine power output unstable.
Background technique
Suction tude is a part for motor, is that air or inflammable mixture enter the passage in engine cylinder, directly affects charging efficiency and each cylinder working uniformity of motor, particularly premixed motor.The main design of suction tude is the design proposal of air inlet tube, intake manifold and air intake branch at present, the design attitude of suction port has front end airflow, middle air inlet and biasing 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 before inflammable mixture is in entering cylinder and completes mixing, is also just intake manifold or intake manifold, to complete mixing.The fuel gas supply mode that intake manifold mixes is single-point discharge formula, and the fuel gas supply mode that manifold mixes is Multi-point jetting type (injection unit of every cylinder).Multi-point jetting type is faster, more accurate to the control of air fuel ratio to the response of motor compared with single-point discharge formula, is conducive to the raising of power operation 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 is by being comprised of 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 one side.Although the design proposal that in this invention, suction port is positioned at pressure stabilizing cavity middle part can guarantee uniformity and the stability of Air Flow, but still has following defect:
1, in this invention, in suction tude, be provided with the intake manifold corresponding with each cylinder, the existence of these intake manifold has lengthened the circulating pathway of air in intake process, increase intake resistance, easily caused charging efficiency to reduce, thereby affected the power performance of motor;
2, in this invention combustion gas from outside via the suction port that is fitted in honeycomb duct in intake manifold and enters firing chamber, controller for gas is positioned at the outside of suction tude, pipeline between the enterprising air flue of its outlet side and engine cylinder cap is longer, easily cause and after fuel gas shutoff, still have abundant residues combustion gas to enter cylinder and affect air fuel ratio, thereby cause engine power output unstable.
Summary of the invention
The object of the invention is to overcome that the air inlet resistance that exists in prior art is large, engine power is exported unstable problem, provide a kind of air inlet resistance less, and can avoid engine power 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 is cavate air inlet device altogether, comprise air conveying seat, gas diversion pipe, described air carries the inlet end of seat to communicate with air header, the intake duct that air carries the outlet side of seat to cover with cylinder communicates, the inlet end of described gas diversion pipe communicates with gas header pipe, and the outlet side of gas diversion pipe passes after air is carried seat and extends in corresponding intake duct;
Described air carries the inside of seat to be provided with dividing plate, this dividing plate carries seat to be separated into the cavity that structure is consistent, No. two cavitys air, described gas diversion pipe comprises the gas diversion pipe that quantity is consistent, 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, the outlet side of a described gas diversion pipe extends in corresponding intake duct after passing a cavity, and the outlet side of described No. two gas diversion pipes extends in corresponding intake duct after passing 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 combustion gas conveying seat, gas nozzle, described combustion gas carries seat to be arranged on the top that air is carried seat, and combustion gas carries the inside of seat to offer the hollow cavity communicating with gas header pipe, the two ends of described hollow cavity bottom offer respectively the nozzle mounting hole that a plurality of structures are consistent, No. two nozzle mounting holes, described gas nozzle comprises gas nozzle No. one, No. two gas nozzles, a described gas nozzle, No. two gas nozzle correspondence is arranged on nozzle mounting hole No. one, in No. two nozzle mounting holes, an and gas nozzle, the inlet end of No. two gas nozzles all communicates with hollow cavity, the fuel channel that the outlet side of a gas nozzle is offered by correspondence communicates with the inlet end of a gas diversion pipe, the fuel channel that the outlet side of No. two gas nozzles is offered by correspondence communicates with the inlet end of No. two gas diversion pipes.
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.
Between a described adjacent gas diversion pipe, by vibration damper plate, be connected, between described No. two adjacent gas diversion pipes, by vibration damper plate, be connected.
Described air carries the inlet end of seat to communicate with air header by air inlet tube.
It is integral type structure that described air carries seat to carry seat with combustion gas.
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, air carries the inside of seat to be provided with dividing plate, this dividing plate carries seat to be separated into the cavity that structure is consistent, No. two cavitys air, the intake duct that this design covers engine cylinder is divided into two groups, and every group of intake duct shares a cavity, packet design makes the adjacent two acting cylinders charging efficiencies that are independent of each other, chamber design has avoided using a plurality of intake manifold altogether, not only reduced the intake resistance of air, guarantee the uniformity of air inlet, and simplified the structure that air is carried seat.Therefore, the present invention has not only guaranteed the charging efficiency of each cylinder, and has reduced the intake resistance of air.
2, in a kind of common cavate air inlet device that divides into groups of the present invention, air is carried the top of seat to be provided with combustion gas and is carried seat, and combustion gas is carried in a nozzle mounting hole of offering on seat, No. two nozzle mounting holes and is fixed with gas nozzle, this design make air inlet device integrated air inlet system and gas inlet system, not only save arrangement space, saved cost, and effectively shortened the length of gas diversion pipe, having avoided after fuel gas shutoff abundant residues fuel to enter cylinder affects air fuel ratio, and then causes engine power output unstable.Therefore, the present invention has not only saved arrangement space, has saved cost, and has avoided engine power output unstable.
3, in a kind of common cavate air inlet device that divides into groups of the present invention, between an adjacent gas diversion pipe, by vibration damper plate, be connected, between No. two adjacent gas diversion pipes, by vibration damper plate, be connected, the gas diversion pipe vibrations that cause because of air-flow panting in intake process have effectively been alleviated in this design.Therefore, the present invention has slowed down the vibrations of gas diversion pipe.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is that in Fig. 1, air carries seat, combustion gas to carry the structural representation of seat.
Fig. 3 is that the A-A of Fig. 1 is to sectional view.
Fig. 4 is the longitudinal sectional view that in Fig. 1, seat is carried in combustion gas.
Fig. 5 is assembling schematic diagram of the present invention.
In figure: air carries seat 1, dividing plate 11, cavity 12, No. two cavitys 13, combustion gas to carry 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 plate 8.
Embodiment
Below in conjunction with accompanying drawing explanation and embodiment, the present invention is further detailed explanation.
Referring to figure 1 – Fig. 5, a kind of grouping is cavate air inlet device altogether, comprise air conveying seat 1, gas diversion pipe 3, described air carries the inlet end of seat 1 to communicate with air header, air carries the outlet side of seat 1 to communicate 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 is carried seat 1 and extends in corresponding intake duct 51;
Described air carries the inside of seat 1 to be provided with dividing plate 11, this dividing plate 11 carries seat 1 to be separated into the cavity 12 that structure is consistent air, No. two cavitys 13, described gas diversion pipe 3 comprises the gas diversion pipe 31 that quantity is consistent, 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, the outlet side of a described gas diversion pipe 31 extends in corresponding intake duct 51 after passing a cavity 12, the outlet side of described No. two gas diversion pipes 32 extends in corresponding intake duct 51 after passing 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 combustion gas conveying seat 2, gas nozzle 4, described combustion gas carries seat 2 to be arranged on the top that air is carried seat 1, and combustion gas carries the inside of seat 2 to offer the hollow cavity 21 communicating with gas header pipe, the two ends of described hollow cavity 21 bottoms offer respectively the nozzle mounting hole 22 that a plurality of structures are consistent, No. two nozzle mounting holes 23, described gas nozzle 4 comprises gas nozzle 41 No. one, No. two gas nozzles 42, a described gas nozzle 41, No. two gas nozzle 42 correspondences are arranged on nozzle mounting hole 22 No. one, in No. two nozzle mounting holes 23, an and gas nozzle 41, the inlet end of No. two gas nozzles all communicates with hollow cavity 21, the fuel channel 24 that the outlet side of a gas nozzle 41 is offered by correspondence communicates with the inlet end of a gas diversion pipe 31, the fuel channel 24 that the outlet side of No. two gas nozzles 42 is offered by correspondence communicates with the inlet end of No. two gas diversion pipes 32.
A described gas nozzle 41, No. two gas nozzles 42 are all fixed in 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.
Between a described adjacent gas diversion pipe 31, by vibration damper plate 8, be connected, between described No. two adjacent gas diversion pipes 32, by vibration damper plate 8, be connected.
Described air carries the inlet end of seat 1 to communicate with air header by air inlet tube 7.
It is integral type structure that described air carries seat 1 to carry seat 2 with combustion gas.
Principle of the present invention is described as follows:
Two functions of air inlet system and gas supply system that the present invention is integrated, at premixed single-fuel engine, have on the duel fuel engine of premixed supply and all can apply.
Air is carried seat 1: in the present invention, air carries the inside of seat 1 to be provided with dividing plate 11, this dividing plate 11 carries seat 1 to be separated into the cavity 12 that structure is consistent air, No. two cavitys 13, this design makes consistent two groups of intake duct 51 quantity of formations on engine cylinder cover 5, and every group of intake duct 51 shares a cavity, from the air of air header, from air, carry the inlet end of seat 1 to be divided into two-way and enter respectively cavity 12 No. one, in No. two cavitys 13, then via a cavity 12, No. two cavity 13 enters respectively in intake duct 51, packet type design has reduced the interference in air flow between adjacent two acting cylinders, guaranteed the charging efficiency of each cylinder, altogether cavate design is due to without using a plurality of intake manifold, reduced the intake resistance of air, guaranteed the uniformity of air inlet, also structure and the preparation process of air inlet device have been simplified simultaneously.
Integrated design: the present invention carries the top of seat 1 to be provided with combustion gas at air and carries seat 2, and a nozzle mounting hole 22 that offers fixing controller for gas-gas nozzle 4 in seat 2, No. two nozzle mounting holes 23 are carried in combustion gas, this design make air inlet device integrated air inlet system and gas inlet system, effectively reduce arrangement space, and be conducive to light-weight design; Meanwhile, this Integration Design has also shortened the length of gas diversion pipe 3, has not only effectively saved cost, and has reduced the remaining gas quantity in gas diversion pipe 3 after fuel gas shutoff, has guaranteed air fuel ratio, has avoided engine power output unstable.
Embodiment 1:
Referring to figure 1 – Fig. 5, a kind of grouping is cavate air inlet device altogether, comprise air conveying seat 1, seat 2 is carried in combustion gas, gas diversion pipe 3, gas nozzle 4, it is integral type structure that described air carries seat 1 to carry seat 2 with combustion gas, described air carries the inlet end of seat 1 to communicate with air header by air inlet tube 7, air carries the outlet side of seat 1 to communicate with the intake duct 51 on engine cylinder cap 5, and air carries the inside of seat 1 to be provided with dividing plate 11, this dividing plate 11 carries seat 1 to be separated into the cavity 12 that structure is consistent air, No. two cavitys 13, described combustion gas carries seat 2 to be arranged on the top that air is carried seat 1, and combustion gas carries the inside of seat 2 to offer the hollow cavity 21 communicating with gas header pipe, the two ends of described hollow cavity 21 bottoms offer respectively the nozzle mounting hole 22 that a plurality of structures are consistent, No. two nozzle mounting holes 23, described gas diversion pipe 3 comprises the gas diversion pipe 31 that quantity is consistent, No. two gas diversion pipes 32, described gas nozzle 4 comprises gas nozzle 41 No. one, No. two gas nozzles 42, a described gas nozzle 41, No. two gas nozzle 42 is solenoid valve, an and gas nozzle 41, No. two gas nozzle 42 is all arranged on nozzle mounting hole 22 No. one by pressing plate 6 correspondences, 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 fuel channel 24 that the outlet side of a gas nozzle 41 is offered by correspondence communicates with the inlet end of a gas diversion pipe 31, the fuel channel 24 that the outlet side of No. two gas nozzles 42 is offered by correspondence communicates with the inlet end of No. two gas diversion pipes 32, the outlet side of a described gas diversion pipe 31 extends in corresponding intake duct 51 after passing a cavity 12, the outlet side of described No. two gas diversion pipes 32 extends in corresponding intake duct 51 after passing No. two cavitys 13, an and gas diversion pipe 31, the quantity of No. two gas diversion pipes 32 is N root, described N is integer, and 2≤N≤6, between a described adjacent gas diversion pipe 31, by vibration damper plate 8, be connected, between described No. two adjacent gas diversion pipes 32, by vibration damper plate 8, be connected.
Claims (9)
1. a grouping is total to cavate air inlet device, comprise air conveying seat (1), a gas diversion pipe (3), described air carries the inlet end of seat (1) to communicate with air header, air carries the outlet side of seat (1) to communicate 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 is carried seat (1) and extends in corresponding intake duct (51), it is characterized in that:
Described air carries the inside of seat (1) to be provided with dividing plate (11), this dividing plate (11) carries seat (1) to be separated into the cavity (12) that structure is consistent air, No. two cavitys (13), described gas diversion pipe (3) comprises the gas diversion pipe (31) that quantity is consistent, 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, the outlet side of a described gas diversion pipe (31) extends in corresponding intake duct (51) after passing a cavity (12), the outlet side of described No. two gas diversion pipes (32) extends in corresponding intake duct (51) after passing No. two cavitys (13).
2. a kind of grouping according to claim 1 is total to cavate air inlet device, it 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. a kind of grouping according to claim 2 is total to cavate air inlet device, it is characterized in that: described N is 3.
According to claim 1 ?the cavate air inlet device altogether of a kind of grouping described in any one in 3, it is characterized in that: described air inlet device also comprises combustion gas conveying seat (2), gas nozzle (4), described combustion gas carries seat (2) to be arranged on the top that air is carried seat (1), and combustion gas carries the inside of seat (2) to offer the hollow cavity (21) communicating with gas header pipe, the two ends of described hollow cavity (21) bottom offer respectively the nozzle mounting hole (22) that a plurality of structures are consistent, 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 nozzles (42) correspondence is arranged on a nozzle mounting hole (22), in No. two nozzle mounting holes (23), an and gas nozzle (41), the inlet end of No. two gas nozzles all communicates with hollow cavity (21), the fuel channel (24) that the outlet side of a gas nozzle (41) is offered by correspondence communicates with the inlet end of a gas diversion pipe (31), the fuel channel (24) that the outlet side of No. two gas nozzles (42) is offered by correspondence communicates with the inlet end of No. two gas diversion pipes (32).
5. a kind of grouping according to claim 4 is total to cavate air inlet device, it 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. a kind of grouping according to claim 4 is total to cavate air inlet device, it is characterized in that: a described gas nozzle (41), No. two gas nozzles (42) are solenoid valve.
According to claim 1 ?the cavate air inlet device altogether of a kind of grouping described in any one in 3, it is characterized in that: between a described adjacent gas diversion pipe (31), by vibration damper plate (8), be connected, between described adjacent No. two gas diversion pipes (32), by vibration damper plate (8), be connected.
According to claim 1 ?the cavate air inlet device altogether of a kind of grouping described in any one in 3, it is characterized in that: described air carries the inlet end of seat (1) to communicate with air header by air inlet tube (7).
9. according to a kind of grouping described in any one in claim 1 ?3, be total to cavate air inlet device, it is characterized in that: described air carries seat (1) and combustion gas to carry (2) for integral type structure.
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 |
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| 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 |
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| CN103603754A true CN103603754A (en) | 2014-02-26 |
| CN103603754B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (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 |
-
2013
- 2013-12-02 CN CN201310625204.XA patent/CN103603754B/en active Active
Patent Citations (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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN103603754B (en) | 2015-10-14 |
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