CN107654312A - A kind of marine engine air inlet pipeline - Google Patents
A kind of marine engine air inlet pipeline Download PDFInfo
- Publication number
- CN107654312A CN107654312A CN201711042814.1A CN201711042814A CN107654312A CN 107654312 A CN107654312 A CN 107654312A CN 201711042814 A CN201711042814 A CN 201711042814A CN 107654312 A CN107654312 A CN 107654312A
- Authority
- CN
- China
- Prior art keywords
- natural gas
- air inlet
- hole
- pipe
- house steward
- 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
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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
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
-
- 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
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/0248—Injectors
- F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
-
- 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
- F02M35/104—Intake manifolds
-
- 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)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention belongs to gas engine technical field, is related to a kind of marine engine air inlet pipeline.A kind of marine engine air inlet pipeline proposed includes natural gas air inlet pipe, air inlet house steward；Air inlet house steward is circular channel；Air inlet house steward side is disposed with some groups to supply the inlet manifold of gaseous mixture for each cylinder of engine；Each inlet manifold is connected by sleeve pipe with corresponding natural gas air inlet pipe；Natural gas air inlet pipe is uniform multiple on natural gas main；Nozzle is installed in sleeve pipe；The head of nozzle is connected with air inlet house steward；The top of nozzle head has the through hole I being connected with air inlet house steward；Also there is the through hole II for natural gas injection on the sphere of nozzle head；The tail end of nozzle is connected by the injection valve being arranged in valve block with natural gas air inlet pipe.The present invention improves power, economy, discharge performance and the life-span of engine.
Description
Technology leads city
The invention belongs to gas engine technical field, is related to a kind of marine engine air inlet pipeline.
Background technology
In recent years, with the successive development of the domestic project such as " the Changjiang river environlnental logistics Innovation project " and " gasification the Changjiang river ", day
Right gas engine is further developed in the application of ship domain；Marine engine require engine aspirating system response it is rapid and
It is safe, and existing pre-mixed charge system makes engine response poor, Operational Figure Of Merit is low, can not meet requirement.Adopt
With inlet manifold multi-point injection technology, engine transient response is fast, and combustion gas control accuracy is high, but existing multi-point injection air intake structure
Using single-walled pipe, class boat engine and high requirement of explosion proof place requirement can not be met;And mounting structure for pipeline is unfavorable
Uniformly mixed in combustion gas, air, have a strong impact on the burning and discharge of engine.
In the prior art, fuel gas injection mixing arrangement described in the B of patent CN 104121116 is by combustion gas rail, air inlet pipe, single-point
Injection valve and mixing arrangement composition, it is complicated, engine modification is big.Air intake structure described in the U of patent CN 205422983 is
It is automobile-used, the injection of natural gas single hole, it is unfavorable for natural gas and is mixed with air；Air inlet pipe described in the A of patent CN 104295418 is only entered
Gas house steward and exhaust gas nozzle structure, exhaust gas nozzle stretch into inlet cylinder, and combustion gas is injected directly into each cylinder air flue, is unfavorable for combustion gas
With the mixing of air；Above-mentioned patent fuel gas pipeline is single-walled pipe, can not meet class boat engine and high requirement of explosion proof field
Institute's requirement；And the more remote air intake ducts of fuel gas ejecting device cause engine response difference or the injection of injection apparatus single hole unfavorable
In being sufficiently mixed for combustion gas and air, combustibility is poor.
The content of the invention
In order to solve the above problems, the present invention proposes a kind of marine engine air inlet pipeline.
The present invention completes its invention task by the following technical programs：
A kind of marine engine air inlet pipeline, described air inlet pipeline include natural gas air inlet pipe, air inlet house steward；It is described
Air inlet house steward be circular channel, one end air inlet, the other end uses explosion-proof valve closure；Described air inlet house steward side
Some groups are disposed with to supply the inlet manifold of gaseous mixture for each cylinder of engine；Each inlet manifold passes through sleeve pipe and institute
Corresponding natural gas air inlet pipe is connected；Described natural gas air inlet pipe is uniform multiple, Duo Gesuo on natural gas main
The natural gas air inlet pipe stated is that each cylinder of natural gas engine supplies fuel；Nozzle is installed in described sleeve pipe；Described nozzle
It is in hemispherical circular sleeve for head, the head of the nozzle is connected with air inlet house steward；The top tool of nozzle head
There is the through hole I being connected with air inlet house steward；Also there is the through hole II for natural gas injection on the sphere of nozzle head；Institute
The through hole II stated is multiple to be uniformly distributed along the circumference；Multiple described through holes II are connected with the cavity of sleeve pipe, and multiple described leads to
Hole II can form with the air in inlet manifold in natural gas injection and disturb, and accelerate the mixing of natural gas and air；The spray
The tail end of mouth is connected by the injection valve being arranged in valve block with natural gas air inlet pipe；The center of the valve block has to pacify
Fill the through hole of injection valve；Through hole described in valve block center is cylindrical hole I, conical bore I, the cylindrical hole being from top to bottom sequentially communicated
IIIth, conical bore II and cylindrical hole III；The valve block side has the cylindrical hole II with the insertion of valve block central through hole；Described valve block
It is connected by cylindrical hole II with natural gas air inlet pipe；The both ends of the valve block pass through lower sealing flange, upper sealing flange respectively
Sealing.
Described natural gas air inlet pipe is by branch pipe is formed in branch pipe outside the natural gas being coaxially disposed, natural gas double-walled
Pipe；It is higher than the inert gas of gas pressure in the outer branch pipe of described natural gas, natural gas between branch pipe filled with pressure, is formed
Airtight collar；The outer branch pipe of described natural gas is connected firmly by adpting flange and valve block；Branch pipe passes through cylinder in described natural gas
Hole II is connected with valve block central through hole, and natural gas is provided for injection valve.
The natural gas main is made up of house steward in house steward outside the natural gas being coaxially disposed and natural gas；Described natural gas
The connection that house steward passes through main and natural-gas transfer pipeline outside main in natural gas, natural gas in outer house steward, natural gas.
When engine works, air enters inlet manifold through inlet manifold, and natural gas enters natural gas by main in air inlet
Interior house steward, then enter injection valve through branch pipe in air inlet；Switch of the valve control according to engine timing signal control valve door is sprayed,
When controller receives open signal, opening injection valve, natural gas enters nozzle, circular hole of the natural gas from nozzle through valve block passage
Place is sprayed, and disturbance is produced in inlet manifold, cylinder is entered after being sufficiently mixed with air therein；The injection valve presses off for height
Powered-down magnet valve, switch is sensitive, control is accurate, and the supply at regular time and quantity of natural gas can be achieved；The injection valve is loose structure, more
Hole injection natural gas forms disturbance in inlet manifold, strengthens its mixing with air, improves gaseous mixture uniformity.
A kind of marine engine air inlet pipeline proposed by the present invention, porous fuel injection valve improve gaseous mixture uniformity,
Fuel gas supply at regular time and quantity improves combustion gas control accuracy, reduces even zero escape of combustion gas escapement ratio to greatest extent, together
When improve the transient response of engine；The porous injection of novel gas nozzle arrangements makes natural gas and the sky in inlet manifold
Gas forms disturbance, further improves the troubled water of combustion gas and air, improves the power of engine, economy, discharge performance
And the life-span.
Brief description of the drawings
Fig. 1 is the front view of the present invention.
Fig. 2 is Fig. 1 left view.
Fig. 3 is Fig. 1 top view.
Fig. 4 is the structure chart of nozzle.
Fig. 5 is Fig. 4 profile.
Fig. 6 is the front view of valve block.
Fig. 7 is Fig. 6 profile.
In figure：1st, air inlet house steward；2nd, inlet manifold；3rd, nozzle；4th, lower sealing flange；5th, valve block；6th, injection valve；7、
Upper sealing flange；8th, adpting flange；9th, the outer branch pipe of natural gas；10th, branch pipe in natural gas；11st, the outer house steward of natural gas；12nd, it is natural
House steward in gas；13rd, main in natural gas；14th, the outer main of natural gas；15th, flange is coordinated；16th, welded flange；17th, cylindrical hole I；
18th, cylindrical hole II；19th, conical bore I；20th, conical bore II；21 cylindrical holes III；22nd, cylindrical hole IV；23rd, through hole I；24th, through hole II.
Embodiment
The present invention is illustrated with reference to accompanying drawing and specific implementation case：
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of marine engine air inlet pipeline, described air inlet pipeline include natural gas air inlet
Pipe, air inlet house steward；Described air inlet house steward 1 is circular channel, one end air inlet, and the other end uses explosion-proof valve closure；
The described side of air inlet house steward 1 is disposed with some groups to supply the inlet manifold 2 of gaseous mixture for each cylinder of engine；Each
The inlet manifold 2 is connected by sleeve pipe with corresponding natural gas air inlet pipe；Described natural gas air inlet pipe is natural
Gas house steward is upper uniform multiple, and multiple described natural gas air inlet pipes supply fuel for each cylinder of natural gas engine；Described set
Nozzle 3 is installed in pipe；With reference to Fig. 4, Fig. 5, described nozzle 3 is that head is in hemispherical circular sleeve, the head of the nozzle 3
Portion is connected with air inlet house steward；The top on the head of nozzle 2 has the through hole I 23 being connected with air inlet house steward；Nozzle
Also there is the through hole II 24 for natural gas injection on the sphere on head；Described through hole II 24 is multiple to be uniformly distributed along the circumference；
Multiple described through holes II 24 are connected with the cavity of sleeve pipe, and multiple described through holes II 24 can be with air inlet in natural gas injection
Air in manifold forms disturbance, accelerates the mixing of natural gas and air；Multiple through holes also increase circulation area, ensure that day
The flow of right gas；The tail end of the nozzle 3 is connected by the injection valve 6 being arranged in valve block 5 with natural gas air inlet pipe；It is described
The center of valve block 5 has to install the through hole of injection valve；Through hole described in valve block center is the circle being from top to bottom sequentially communicated
Post holes I 17, conical bore I 19, cylindrical hole III 22, conical bore II 20 and cylindrical hole III 21；The valve block side have with valve block
The cylindrical hole II 18 of heart through hole insertion；Described valve block 5 is connected by cylindrical hole II 18 with natural gas air inlet pipe；The valve block
5 both ends are sealed by lower sealing flange 4, upper sealing flange 7 respectively.
Described natural gas air inlet pipe is by branch pipe is formed in branch pipe outside the natural gas being coaxially disposed, natural gas double-walled
Pipe；It is higher than the inert gas of gas pressure in the outer branch pipe of described natural gas, natural gas between branch pipe filled with pressure, is formed
Airtight collar；The outer branch pipe of described natural gas is connected firmly by adpting flange and valve block；Branch pipe passes through cylinder in described natural gas
Hole II is connected with valve block central through hole, and natural gas is provided for injection valve.
The natural gas main is made up of house steward 10 in house steward 9 outside the natural gas being coaxially disposed and natural gas；Described day
House steward 10 passes through main 14 outside main in natural gas 13, natural gas and natural-gas transfer pipeline in the outer house steward 9 of right gas, natural gas
Connection.
When engine works, air enters inlet manifold 2 through inlet manifold 1, and natural gas is entered by main in natural gas 13
House steward 12 in natural gas, then enter injection valve 6 through branch pipe in natural gas 10.Valve control is sprayed according to engine timing signal control
The switch of valve processed, when controller receives open signal, opening injection valve, natural gas enters nozzle 3, day through the passage of valve block 5
Right gas is sprayed at the circular hole of nozzle 3, and disturbance is produced in inlet manifold 2, cylinder is entered after being sufficiently mixed with air therein.
The injection valve 6 is high-voltage switch gear magnetic valve, and switch is sensitive, control is accurate, and the supply at regular time and quantity of natural gas can be achieved.It is described
Injection valve 6 is loose structure, and porous injection natural gas forms disturbance in inlet manifold 2, strengthens the mixing of remaining air, improves
Gaseous mixture uniformity.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.
Claims (3)
- A kind of 1. marine engine air inlet pipeline, it is characterised in that：Described air inlet pipeline includes natural gas air inlet pipe, air Inlet manifold；Described air inlet house steward is circular channel, one end air inlet, and the other end uses explosion-proof valve closure；Described sky Gas inlet manifold side is disposed with some groups to supply the inlet manifold of gaseous mixture for each cylinder of engine；Each air inlet discrimination Pipe is connected by sleeve pipe with corresponding natural gas air inlet pipe；Described natural gas air inlet pipe is uniform on natural gas main It is multiple；Nozzle is installed in described sleeve pipe；Described nozzle is that head is in hemispherical circular sleeve, the head of the nozzle Portion is connected with air inlet house steward；The top of nozzle head has the through hole I being connected with air inlet house steward；Nozzle head Sphere on also have for natural gas injection through hole II；Described through hole II is multiple to be uniformly distributed along the circumference；It is multiple described Through hole II be connected with the cavity of sleeve pipe；The tail end of the nozzle passes through the injection valve being arranged in valve block and natural gas air inlet Pipe is connected；The center of the valve block has to install the through hole of injection valve；Through hole described in valve block center is from top to bottom Cylindrical hole I, conical bore I, cylindrical hole III, conical bore II and the cylindrical hole III being sequentially communicated；The valve block side has and valve block The cylindrical hole II of central through hole insertion；Described valve block is connected by cylindrical hole II with natural gas air inlet pipe；The valve block Both ends are sealed by lower sealing flange, upper sealing flange respectively.
- A kind of 2. marine engine air inlet pipeline as claimed in claim 1, it is characterised in that：Described natural gas air inlet pipe is The double-wall pipe being made up of branch pipe in branch pipe outside the natural gas being coaxially disposed, natural gas；In the outer branch pipe of described natural gas, natural gas It is higher than the inert gas of gas pressure between branch pipe filled with pressure, forms airtight collar；The outer branch pipe of described natural gas leads to Adpting flange is crossed to connect firmly with valve block；Branch pipe is connected by cylindrical hole II with valve block central through hole in described natural gas.
- A kind of 3. marine engine air inlet pipeline as claimed in claim 1, it is characterised in that：The natural gas main is by coaxial House steward is formed in the outer house steward of the natural gas of setting and natural gas；House steward passes through natural in the outer house steward of described natural gas, natural gas The connection of the outer main of main, natural gas and natural-gas transfer pipeline in gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711042814.1A CN107654312A (en) | 2017-10-31 | 2017-10-31 | A kind of marine engine air inlet pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711042814.1A CN107654312A (en) | 2017-10-31 | 2017-10-31 | A kind of marine engine air inlet pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107654312A true CN107654312A (en) | 2018-02-02 |
Family
ID=61095767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711042814.1A Pending CN107654312A (en) | 2017-10-31 | 2017-10-31 | A kind of marine engine air inlet pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107654312A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060184A (en) * | 2020-07-31 | 2022-02-18 | 比亚迪股份有限公司 | Water-gas mixing device and engine |
| CN115013189A (en) * | 2022-05-27 | 2022-09-06 | 河南柴油机重工有限责任公司 | Gas valve protection device and method for gas engine |
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|---|---|---|---|---|
| DE29706625U1 (en) * | 1997-04-12 | 1997-08-14 | Schmidt, Ernst W., 83457 Bayerisch Gmain | Electronic - magnetically operated injection nozzle |
| CN101115920A (en) * | 2005-02-08 | 2008-01-30 | 西门子威迪欧汽车电子股份公司 | Method for producing an injector body and corresponding injector body |
| CN202031725U (en) * | 2011-02-15 | 2011-11-09 | 徐庆玉 | Automobile combustion gas supply system with an air quantity adjustable and backfire explosion-preventing apparatus |
| CN103485944A (en) * | 2013-08-30 | 2014-01-01 | 广西玉柴机器股份有限公司 | Fuel gas supply system of double-fuel diesel engine |
| CN204900135U (en) * | 2015-07-07 | 2015-12-23 | 中国人民解放军装甲兵工程学院 | Engine gaseous fuel direct injection injection nozzle |
| CN205349555U (en) * | 2015-01-23 | 2016-06-29 | 卡特彼勒公司 | Setting is at cylinder head of engine and pipe assembly between supply of fuel valve case |
| CN205744143U (en) * | 2016-05-11 | 2016-11-30 | 中船重工（上海）新能源有限公司 | Air inlet pipeline ejection-type natural gas engine |
| CN106979098A (en) * | 2017-06-02 | 2017-07-25 | 广西玉柴机器股份有限公司 | the air inlet pipe assembly of gas engine |
| CN207437219U (en) * | 2017-10-31 | 2018-06-01 | 河南柴油机重工有限责任公司 | A kind of marine engine air inlet pipeline |
-
2017
- 2017-10-31 CN CN201711042814.1A patent/CN107654312A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29706625U1 (en) * | 1997-04-12 | 1997-08-14 | Schmidt, Ernst W., 83457 Bayerisch Gmain | Electronic - magnetically operated injection nozzle |
| CN101115920A (en) * | 2005-02-08 | 2008-01-30 | 西门子威迪欧汽车电子股份公司 | Method for producing an injector body and corresponding injector body |
| CN202031725U (en) * | 2011-02-15 | 2011-11-09 | 徐庆玉 | Automobile combustion gas supply system with an air quantity adjustable and backfire explosion-preventing apparatus |
| CN103485944A (en) * | 2013-08-30 | 2014-01-01 | 广西玉柴机器股份有限公司 | Fuel gas supply system of double-fuel diesel engine |
| CN205349555U (en) * | 2015-01-23 | 2016-06-29 | 卡特彼勒公司 | Setting is at cylinder head of engine and pipe assembly between supply of fuel valve case |
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| CN205744143U (en) * | 2016-05-11 | 2016-11-30 | 中船重工（上海）新能源有限公司 | Air inlet pipeline ejection-type natural gas engine |
| CN106979098A (en) * | 2017-06-02 | 2017-07-25 | 广西玉柴机器股份有限公司 | the air inlet pipe assembly of gas engine |
| CN207437219U (en) * | 2017-10-31 | 2018-06-01 | 河南柴油机重工有限责任公司 | A kind of marine engine air inlet pipeline |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060184A (en) * | 2020-07-31 | 2022-02-18 | 比亚迪股份有限公司 | Water-gas mixing device and engine |
| CN114060184B (en) * | 2020-07-31 | 2023-04-07 | 比亚迪股份有限公司 | Water-gas mixing device and engine |
| CN115013189A (en) * | 2022-05-27 | 2022-09-06 | 河南柴油机重工有限责任公司 | Gas valve protection device and method for gas engine |
| CN115013189B (en) * | 2022-05-27 | 2024-03-26 | 河南柴油机重工有限责任公司 | Gas valve protection device and method for gas engine |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180202 |
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| RJ01 | Rejection of invention patent application after publication |