CN110552823A - Air inlet connecting pipe assembly and natural gas engine thereof - Google Patents
Air inlet connecting pipe assembly and natural gas engine thereof Download PDFInfo
- Publication number
- CN110552823A CN110552823A CN201910883738.XA CN201910883738A CN110552823A CN 110552823 A CN110552823 A CN 110552823A CN 201910883738 A CN201910883738 A CN 201910883738A CN 110552823 A CN110552823 A CN 110552823A
- Authority
- CN
- China
- Prior art keywords
- pipe
- natural gas
- air inlet
- mixer
- assembly
- 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.)
- Pending
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000003345 natural gas Substances 0.000 title claims abstract description 28
- 238000005266 casting Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract description 2
- 239000002912 waste gas Substances 0.000 description 11
- 230000004075 alteration Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/04—Gas-air mixing apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M29/00—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture
- F02M29/02—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having rotary parts, e.g. fan wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M29/00—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture
- F02M29/04—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1015—Air intakes; Induction systems characterised by the engine type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0215—Mixtures of gaseous fuels; Natural gas; Biogas; Mine gas; Landfill gas
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention provides an air inlet connecting pipe assembly and a natural gas engine thereof, comprising: the pipeline comprises a pipeline body, wherein a pipeline joint, a bent pipe and a straight pipe are arranged on the pipeline body, one end of the pipeline joint is connected with one end of the bent pipe, and the other end of the bent pipe is connected with one end of the straight pipe; the straight pipe is also provided with a mixer and a throttle valve which are communicated with the straight pipe, the mixer is also provided with a natural gas inlet pipe, and one end of the natural gas inlet pipe is communicated with and fixedly connected with the mixer; according to the air inlet connecting pipe assembly and the natural gas engine thereof, the turbulent flow mixing function is directly integrated in the air inlet connecting pipe, so that the function is realized, the number of parts is reduced, the overall cost is saved, the mixing function is more reliable through a casting or welding process mode, and the air leakage risk is reduced.
Description
Technical Field
The invention belongs to the technical field of engine pipelines, and particularly relates to an air inlet connecting pipe assembly and a natural gas engine thereof.
Background
At present, the natural gas engine adopting a single-point injection scheme is characterized in that the mixing of air and natural gas is realized by a mixer, the mixer is generally arranged behind an electronic throttle valve, the air and the natural gas are mixed in the mixer, and the mixture enters each cylinder of the engine through an air inlet connecting pipe. Due to the technical level of the mixer or due to the limitation of the arrangement scheme of the air supply system, insufficient mixing uniformity is often caused, namely, the air and the natural gas cannot be mixed sufficiently.
The Chinese utility model with publication number CN206972406U discloses an air inlet connecting pipe of a diesel engine, which comprises an air inlet connecting pipe body, a waste gas guide pipe and an air inlet mixer, wherein the front side and the rear side of the air inlet connecting pipe body are respectively provided with an air inlet channel and a waste gas inlet channel, the upper part of the air inlet channel of the air inlet connecting pipe body is provided with a waste gas guide pipe installation cavity, and the waste gas guide pipe is vertically embedded in the waste gas guide pipe installation cavity; the waste gas guide pipe is internally provided with a waste gas guide channel, the side surface of the waste gas guide pipe is provided with an air inlet end, the air inlet end of the waste gas guide pipe is communicated with the air outlet end of the waste gas inlet channel, and the center of the air inlet mixer is provided with a plurality of mixing blades.
It can be seen that the air inlet connecting pipe in the prior art mainly depends on the mixer to conduct air and waste gas diversion and mixing, and the insufficient pipe length thereof causes the need of depending on the air inlet cavity and the gas mixing cavity with overlarge volumes, and the problem of uniform mixing also exists.
Disclosure of Invention
The invention aims to provide an air inlet connecting pipe assembly and a natural gas engine thereof, and aims to solve the problem that in the prior art, the structure is more compact while air inlet is uniformly mixed.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
The invention provides an air inlet connecting pipe component, which comprises: the pipeline comprises a pipeline body, wherein a pipeline joint, a bent pipe and a straight pipe are arranged on the pipeline body, one end of the pipeline joint is connected with one end of the bent pipe, and the other end of the bent pipe is connected with one end of the straight pipe;
The straight pipe is also provided with a mixer and a throttle valve which are communicated with the straight pipe, the mixer is also provided with a natural gas inlet pipe, and one end of the natural gas inlet pipe is communicated with and fixedly connected with the mixer.
Preferably, turbine blades are also arranged in the bent pipe.
Preferably, the turbine blade further comprises a bearing, and the turbine blade is fixedly connected with a movable end of the bearing.
Preferably, the fixed end of the bearing is welded and fixed with the inner wall of the elbow.
preferably, the turbine blade is integrally formed with the elbow.
Preferably, the vortex generator is arranged between the bent pipe and the straight pipe, one end of the vortex generator is communicated and fixedly connected with one end of the bent pipe, and the other end of the vortex generator is communicated and fixedly connected with one end of the straight pipe.
Preferably, the spoiler comprises a housing and a spoiler, wherein the spoiler is movably connected with the housing.
The invention also provides a natural gas engine which comprises the air inlet connecting pipe assembly.
the invention has the advantages that:
According to the air inlet connecting pipe assembly and the natural gas engine thereof, the turbulent flow mixing function is directly integrated in the air inlet connecting pipe, so that the function is realized, the number of parts is reduced, the overall cost is saved, the mixing function is more reliable, the overall attractiveness is higher, and the air leakage risk is reduced by a casting or welding process mode.
Drawings
FIG. 1 is a schematic structural view of an intake air connector assembly according to the present invention;
FIG. 2 is a partial cross-sectional view of an elbow of the invention;
FIG. 3 is a schematic cross-sectional view of an elbow of the present invention;
FIG. 4 is a schematic view of an air inlet joint assembly according to the present invention including a spoiler;
Fig. 5 is a schematic structural diagram of the spoiler according to the present invention.
In the figure, 100 is a pipeline body, 101 is a pipeline joint, 102 is a bent pipe, 103 is a straight pipe, 104 is a turbine blade, 110 is a mixer, 120 is a natural gas inlet pipe, 130 is a throttle valve, 140 is a spoiler, 141 is a housing, and 142 is a spoiler.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In an embodiment of the present invention, there is provided an intake junction assembly, as shown in fig. 1, including: the engine air suction device comprises a pipeline body 100, wherein a pipeline joint 101, an elbow pipe 102 and a straight pipe 103 are arranged on the pipeline body 100, one end of the pipeline joint 101 is connected with one end of the elbow pipe 102, the other end of the pipeline joint 101 is connected with an engine, the other end of the elbow pipe 102 is connected with one end of the straight pipe 103, and the other end of the straight pipe 103 is used for sucking air;
The straight pipe 103 is further provided with a mixer 110 and a throttle 130 which are communicated with the straight pipe 103, the mixer 110 is further provided with a natural gas inlet pipe 120, one end of the natural gas inlet pipe 120 is communicated and fixedly connected with the mixer 110, the mixer 110 is used for fully and uniformly mixing natural gas and air, the throttle 130 is used for controlling the amount of air sucked, the throttle 130 can also be of an electronic actuating structure, and the specific structure refers to the prior art.
In one embodiment, as shown in fig. 2 and 3, a turbine blade 104 is further disposed in the elbow 102, the natural gas and the air are mixed by a mixer 110 and then pass through the turbine blade 104, and the turbine blade 104 rotates under the action of the mixture of the natural gas and the air, so as to further improve the uniformity of the mixing.
In one embodiment, a bearing is further included, and the turbine blade 102 is further fixedly connected to a free end of the bearing.
in one embodiment, the fixed end of the bearing is welded to the inner wall of the elbow 102.
in some embodiments, the turbine blades 104 are integrally formed with the elbow 102.
In some embodiments, as shown in fig. 4, a turbulence generator 140 is further included, the turbulence generator 140 is disposed between the curved pipe 102 and the straight pipe 103 for further improving the mixing uniformity of the natural gas and the air, one end of the turbulence generator 140 is communicated and fixedly connected with one end of the curved pipe 102, and the other end of the turbulence generator 140 is communicated and fixedly connected with one end of the straight pipe 103.
In one embodiment, as shown in fig. 5, the spoiler 140 includes a housing 141 and a spoiler 142, and the spoiler 142 is movably connected to the housing 141.
the invention also provides a natural gas engine, which comprises the air inlet connecting pipe assembly, and the structure of other parts of the natural gas engine is referred to the prior art and is not repeated herein.
Reference in the specification to "some embodiments," "one embodiment," or "an embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in some embodiments," "in one embodiment," or "in an embodiment," or the like, in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, a particular feature, structure, or characteristic illustrated or described in connection with one embodiment may be combined, in whole or in part, with a feature, structure, or characteristic of one or more other embodiments without limitation, as long as the combination is not logical or operational. Additionally, the various elements of the drawings of the present application are merely schematic illustrations and are not drawn to scale.
having thus described several aspects of at least one embodiment of this invention, it is to be appreciated various alterations, modifications, and improvements will readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be within the spirit and scope of the invention.
Claims (8)
1. An intake air junction assembly, comprising: the pipeline comprises a pipeline body, wherein a pipeline joint, a bent pipe and a straight pipe are arranged on the pipeline body, one end of the pipeline joint is connected with one end of the bent pipe, and the other end of the bent pipe is connected with one end of the straight pipe;
The straight pipe is also provided with a mixer and a throttle valve which are communicated with the straight pipe, the mixer is also provided with a natural gas inlet pipe, and one end of the natural gas inlet pipe is communicated with and fixedly connected with the mixer.
2. The intake collar assembly of claim 1, wherein turbine blades are further disposed within the elbow.
3. the intake adapter assembly of claim 2, further comprising a bearing, wherein the turbine blade is further fixedly attached to a free end of the bearing.
4. The intake air union assembly of claim 3, wherein the fixed end of the bearing is welded to the inner wall of the elbow.
5. The intake adapter assembly of claim 2 or 3, wherein the turbine blades are integrally formed with the elbow.
6. The intake connecting pipe assembly according to claim 1 or 2, further comprising a spoiler disposed between the curved pipe and the straight pipe, one end of the spoiler being communicated and fixedly connected with one end of the curved pipe, and the other end of the spoiler being communicated and fixedly connected with one end of the straight pipe.
7. The intake collar assembly of claim 6, wherein the spoiler comprises a housing and a spoiler that is movably coupled to the housing.
8. A natural gas engine comprising the intake air connector assembly of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910883738.XA CN110552823A (en) | 2019-09-18 | 2019-09-18 | Air inlet connecting pipe assembly and natural gas engine thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910883738.XA CN110552823A (en) | 2019-09-18 | 2019-09-18 | Air inlet connecting pipe assembly and natural gas engine thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110552823A true CN110552823A (en) | 2019-12-10 |
Family
ID=68740703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910883738.XA Pending CN110552823A (en) | 2019-09-18 | 2019-09-18 | Air inlet connecting pipe assembly and natural gas engine thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110552823A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173649A (en) * | 2020-01-07 | 2020-05-19 | 一汽解放汽车有限公司 | Natural gas engine air intake system and EGR control method thereof |
| CN113431714A (en) * | 2021-07-08 | 2021-09-24 | 湖南大学 | High-efficient blender device of variable cross section gas |
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| CN104265513A (en) * | 2014-09-22 | 2015-01-07 | 广西玉柴机器股份有限公司 | Natural gas engine egr mixing device |
| JP2015151994A (en) * | 2014-02-19 | 2015-08-24 | 株式会社Ｉｈｉシバウラ | gas engine |
| CN105003361A (en) * | 2015-08-10 | 2015-10-28 | 广西玉柴机器股份有限公司 | Integrated EGR (exhaust gas recirculation) mixer |
| CN208010480U (en) * | 2018-03-22 | 2018-10-26 | 中国第一汽车股份有限公司 | Engine intake duct |
| CN208184864U (en) * | 2018-05-02 | 2018-12-04 | 潍柴西港新能源动力有限公司 | A kind of natural gas engine gas handling system |
| CN208651002U (en) * | 2018-04-04 | 2019-03-26 | 上海柴油机股份有限公司 | A kind of three medium mixing arrangement of natural gas engine |
| CN209398514U (en) * | 2018-12-20 | 2019-09-17 | 湖北云康动力科技有限公司 | A kind of Commingler for natural gas engine |
| CN211174410U (en) * | 2019-09-18 | 2020-08-04 | 广西玉柴机器股份有限公司 | Air inlet connecting pipe assembly and natural gas engine thereof |
-
2019
- 2019-09-18 CN CN201910883738.XA patent/CN110552823A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015151994A (en) * | 2014-02-19 | 2015-08-24 | 株式会社Ｉｈｉシバウラ | gas engine |
| CN104265513A (en) * | 2014-09-22 | 2015-01-07 | 广西玉柴机器股份有限公司 | Natural gas engine egr mixing device |
| CN105003361A (en) * | 2015-08-10 | 2015-10-28 | 广西玉柴机器股份有限公司 | Integrated EGR (exhaust gas recirculation) mixer |
| CN208010480U (en) * | 2018-03-22 | 2018-10-26 | 中国第一汽车股份有限公司 | Engine intake duct |
| CN208651002U (en) * | 2018-04-04 | 2019-03-26 | 上海柴油机股份有限公司 | A kind of three medium mixing arrangement of natural gas engine |
| CN208184864U (en) * | 2018-05-02 | 2018-12-04 | 潍柴西港新能源动力有限公司 | A kind of natural gas engine gas handling system |
| CN209398514U (en) * | 2018-12-20 | 2019-09-17 | 湖北云康动力科技有限公司 | A kind of Commingler for natural gas engine |
| CN211174410U (en) * | 2019-09-18 | 2020-08-04 | 广西玉柴机器股份有限公司 | Air inlet connecting pipe assembly and natural gas engine thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173649A (en) * | 2020-01-07 | 2020-05-19 | 一汽解放汽车有限公司 | Natural gas engine air intake system and EGR control method thereof |
| CN113431714A (en) * | 2021-07-08 | 2021-09-24 | 湖南大学 | High-efficient blender device of variable cross section gas |
| CN113431714B (en) * | 2021-07-08 | 2022-03-01 | 湖南大学 | High-efficient blender device of variable cross section gas |
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