CN107559104A - A kind of air inlet tube device of natural gas engine - Google Patents
A kind of air inlet tube device of natural gas engine Download PDFInfo
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- CN107559104A CN107559104A CN201710823672.6A CN201710823672A CN107559104A CN 107559104 A CN107559104 A CN 107559104A CN 201710823672 A CN201710823672 A CN 201710823672A CN 107559104 A CN107559104 A CN 107559104A
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- air inlet
- explosion
- inlet tube
- proof valve
- natural gas
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- 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
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Abstract
A kind of air inlet tube device of natural gas engine, including：Air inlet tube, explosion-proof valve base, explosion-proof valve, air inlet temperature/pressure sensor；Air inlet tube device integrated installation air inflow anti-explosion valve, the air inlet temperature/pressure sensor of such a natural gas engine, make the characteristics of compact layout of whole gas handling system, it is easy to the installation of other annexes, the space availability ratio of the engine nacelle of matched host machine can be improved to greatest extent, suitability is good.The variable cross-section pipeline uniformly increased along air motion direction can reduce intake resistance, reduce kinetic equation loss, the air inlet flowed through forms turbulent flow, is more fully mixed in relatively short pipeline, so as to obtain excellent power performance.Both the data precision of airflow influence sensor collection caused by electronic throttle action can have been prevented, and can is not on the premise of inlet manifold's structure is changed, rapidly, the temperature closest to cylinder intake, pressure signal are accurately collected, and signal is fed back into electronic control unit in time and handled.
Description
Technical field
The invention belongs to field of internal combustion engine, is related to a kind of engine connecting device, more particularly to a kind of natural gas engine
Air inlet tube device.
Background technology
At present, with energy crisis and the aggravation of air pollution, the engine using natural gas as fuel has obtained rapid hair
Exhibition.Compared with traditional gasoline engine or diesel engine, natural gas engine is with the obvious advantage in terms of exhaust emissions, granular material discharged several
It is zero, the discharge of the material such as carbon monoxide is relatively low.Gas handling system is the important component of natural gas engine.Often at present
Air inlet tube realizes being sufficiently mixed for natural gas and air to enter in gaseous mixture before combustion chamber, to meet engine work(
The requirement of rate and moment of torsion, therefore pipeline is longer, causes charge air flow linear loss to increase, air inflow is reduced, and influence is started motor-driven
Power performance.Other whole system function is more single, generally only serves the effect of connection air inlet shutter and air inlet tube passage.It is existing
Having in technology has a kind of dual fuel engine combustion gas tracheae exchanging structure, and it is that an air inlet is opened on motor intake manifold
Hole, a plinth is fixed on the air admission hole, is sealed between plinth and inlet manifold by sealing ring, plinth center has
Air admission hole and the air flue of its side wall are connected, combustion gas tube head imbeds plinth with interference fit from the air flue of its side wall, is used in combination
Sealant sealing.On the make technics comparing is complicated for this structure.Due to being flammable mixing in the air inlet pipe of natural gas engine
Gas, when engine operation irregularity is tempered, the gas that easily ignites in air inlet pipe, inner-walls of duct produces larger pressure
Power, cause the damage of the parts such as gas handling system and air cleaner.In view of the situation, we pass through multiple experiment with changing
Enter, there is provided one kind can integrated installation air inlet temperature/pressure sensor and air inflow anti-explosion valve, intake resistance can be reduced, be simple in construction,
Service-strong natural gas engine air inlet tube device.
The content of the invention
It is an object of the invention to provide a kind of integrated installation air inlet temperature/pressure sensor and air inflow anti-explosion valve, air inlet can be reduced
Resistance, characteristics of compact layout, natural gas and the well-mixed natural gas engine air inlet tube device of air can be realized.
The technical scheme is that：A kind of air inlet tube device of natural gas engine, including：It is air inlet tube, explosion-proof
Valve base, explosion-proof valve, air inlet temperature/pressure sensor；Explosion-proof valve base is arranged on air inlet tube by bolt, and explosion-proof valve is used
It is bolted on explosion-proof valve base, in the head insertion air inlet tube of air inlet temperature/pressure sensor, and is twisted with fixing bolt
Tightly.
Described air inlet tube includes main pipe, air inlet, electronic throttle mounting flange, gas outlet, air inlet pipe installation
Flange, sensor interface, gaseous mixture bypass flange；Main pipe one end connects air inlet and electronic throttle mounting flange, another
End connection gas outlet and air inlet pipe mounting flange；Air inlet is circular cross-section, and diameter dimension is 27~Φ of Φ 30mm；Gas outlet
For rectangular cross-sectional, length dimension is 99~101 mm, and width dimensions are 73~75 mm.
Main pipe's pipeline intracavity section is gradually increased along air motion direction by circular even transition to rectangle, sectional area
To the rectangular cross-sectional size of gas outlet.
Air inlet, gas outlet section are in 90 ° of angles, are turned to by radius of circular arc R, and arc size is 93~97 mm, air inlet
Mouth, gas outlet are set along the tangential direction of circular arc R；Electronic throttle mounting flange and air inlet pipe mounting flange be it is square,
Respectively it is disposed with flange mounting hole in its corner, two end face of flange are in 90 ° of angles, and height dimension is 119~121 mm, axis side
It is 119~121 mm to size.
Main pipe's intracavity section turning point sets gaseous mixture to bypass flange, is in 20 ° of angles with air inlet pipe mounting flange, explosion-proof
Valve base is arranged on main pipe by fixing bolt, and explosion-proof valve is arranged on explosion-proof valve base by fixing bolt.
Main pipe sets sensor interface, is in air inlet pipe mounting flange close to one end of air inlet pipe mounting flange, side
90 ° of angles, the head of air inlet temperature/pressure sensor is inserted in sensor interface, and is tightened in fixing bolt on main pipe.
The present invention can reach following beneficial effect after using above-mentioned technical proposal：The air inlet tube of such a natural gas engine
Device integrated installation air inflow anti-explosion valve, air inlet temperature/pressure sensor, make the arrangement of whole gas handling system more compact, are easy to it
The installation of its annex, can improve the space availability ratio of the engine nacelle of matched host machine to greatest extent, and suitability is good.Along air-flow
The variable cross-section pipeline that the direction of motion uniformly increases can reduce intake resistance, reduce kinetic equation loss, and the air inlet flowed through forms turbulent flow,
It is more fully mixed in relatively short pipeline, so as to obtain excellent power performance.
On the other hand, explosion-proof valve of the integrated installation on air inlet tube, opened rapidly when air inlet tempering occurs for engine,
Drastically elevated admission pressure is laid down, is eliminated safe hidden trouble in most short distance, so as to ensure engine health, normal fortune
Turn；Air inlet temperature/pressure sensor is arranged far from one end of electronic throttle, and as close to air inlet pipe, can both prevent
The data precision of airflow influence sensor collection, and can are not changing inlet manifold's structure caused by electronic throttle action
Under the premise of, rapidly, the temperature closest to cylinder intake, pressure signal accurately are collected, and signal is fed back to electron control in time
Unit processed is handled.
Brief description of the drawings
Fig. 1 is the main structure diagram of the air inlet tube device of natural gas engine of the present invention；
Fig. 2 is the overlooking the structure diagram of the air inlet tube device of natural gas engine of the present invention；
Fig. 3 is the three dimensional structure diagram of the air inlet tube device of natural gas engine of the present invention；
Fig. 4 is the cross section structure diagram of the air inlet tube of natural gas engine of the present invention；
Fig. 5 is the G of the air inlet tube of natural gas engine of the present invention to regarding schematic diagram.
In figure：1st, air inlet tube, 2, explosion-proof valve base, 3, explosion-proof valve, 4, air inlet temperature/pressure sensor, 5, main pipe,
6th, air inlet, 7, electronic throttle mounting flange, 8, gas outlet, 9, air inlet pipe mounting flange, 10, sensor interface, 11, mixing
Gas bypasses flange.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described further to the present invention：As shown in Figure 3, Figure 4, a kind of natural gas hair
The air inlet tube device of motivation, including：Air inlet tube 1, explosion-proof valve base 2, explosion-proof valve 3, air inlet temperature/pressure sensor 4；It is anti-
Quick-fried valve base 2 is arranged on air inlet tube 1 by bolt, and explosion-proof valve 3 is fixed by bolts on explosion-proof valve base 2, intake air temperature
In the head insertion air inlet tube 1 of pressure sensor 4, and tightened with 1 fixing bolt.
Described air inlet tube 1 includes main pipe 5, air inlet 6, electronic throttle mounting flange 7, gas outlet 8, air inlet pipe
Mounting flange 9, sensor interface 10, gaseous mixture bypass flange 11；The one end of main pipe 5 connects air inlet 6 and electronic throttle peace
Fill flange 7, other end connection gas outlet 8 and air inlet pipe mounting flange 9；Air inlet 6 is circular cross-section, and diameter of phi A sizes are Φ
27~Φ 30mm；Gas outlet 8 is rectangular cross-sectional, and long size degree B is 99~101 mm, and width dimensions C is 73~75 mm.
The pipeline intracavity section of main pipe 5 is gradually increased along air motion direction by circular even transition to rectangle, sectional area
The big rectangular cross-sectional size for arriving gas outlet 8.
Air inlet 6, the section of gas outlet 8 are in 90 ° of angles, are turned to by radius of circular arc R, and arc size R is 93~97 mm,
Air inlet 6, gas outlet 8 are set along the tangential direction of circular arc R；Electronic throttle mounting flange 7 and air inlet pipe mounting flange 9 are equal
To be square, flange mounting hole is respectively disposed with its corner, two end face of flange are in 90 ° of angles, and height dimension D is 119~121
Mm, axis direction size E are 119~121 mm.
The intracavity section turning point of main pipe 5 sets gaseous mixture to bypass flange 11, is in 20 ° of angles with air inlet pipe mounting flange 9,
Explosion-proof valve base 2 is mounted thereto by four fixing bolts, and explosion-proof valve 3 is arranged on explosion-proof valve base by four fixing bolts
On 2.
Main pipe 5 is close to one end of air inlet pipe mounting flange 9, and side sets sensor interface 10, with air inlet pipe Method for Installation
Orchid 9 is in 90 ° of angles, and the head of air inlet temperature/pressure sensor 4 is inserted in sensor interface 10, and is tightened in 1 fixing bolt
On main pipe 5.
The air inlet tube device of above-mentioned natural gas engine, design and improvement after verification experimental verification, air inlet tube master
Configuration, the change in airflow passes direction and the setting of bypass passageways of the pipeline inner section size of body 5, can be achieved to flow through pipeline
The good mixing of natural gas and air, engine is set to obtain good dynamic property；Length of pipe is short, can effectively reduce whole device
Overall size；Device integrated level is high, can improve the enging cabin space availability ratio of matched host machine, suitability to greatest extent
It is good.
When engine works, natural gas, the gaseous mixture of air enter from the air inlet 6 of the one end of electronic throttle mounting flange 7
Enter main pipe 5, tangentially into the corner rear steering of main pipe 5, continuation is tangentially flowed out, from air inlet pipe Method for Installation
The gas outlet 8 of blue 9 one end enters engine air inlet tube, subsequently into cylinder operation.Main pipe 5 uniformly increases along air motion direction
Big variable cross-section pipeline can effectively reduce intake resistance, reduce kinetic equation loss；Section turns to and sets bypass in turning point,
The gaseous mixture flowed through is no longer unidirectional streamlined flow, but forms effective turbulent motion, is realized in relatively short pipe
It is more fully mixed in road, so that natural gas engine obtains excellent power performance.Installed in entering for sensor interface 10
Main pipe 5 is stretched into close to the inner chamber of the one end of air inlet pipe mounting flange 9 in gas temperature and pressure transmitter 4, head, uprush direction,
Measurement inlet condition simultaneously feeds back to ECU, and with reference to the operating mode of engine, adjustment in real time supplies parameter.
The corner of main pipe 5 sets gaseous mixture to bypass flange 11, for installing fixed explosion-proof valve base 2 and explosion-proof valve 3,
When air inlet tempering occurs for engine, high temperature and high pressure gas or flame are back to gas handling system, are now mixed in air inlet tube 1
Atmospheric pressure raises, and promotes the valve of explosion-proof valve 3 being arranged on explosion-proof valve base 2 to open, redundancy gas releases air inlet connecting through valve
Pipe 1, valve is closed when admission pressure recovers normal, effectively protects the gas handling systems such as air throttle, blender, air cleaner
Element, so as to ensure engine health, run well.Bypassed in gaseous mixture and explosion-proof valve bottom is installed between flange 11 and explosion-proof valve 3
Seat 2, it is when using the explosion-proof valve of different model that it, which is acted on, it is only necessary to the physical dimension of explosion-proof valve base 2 is changed, without relating to
And the variation of air inlet tube 1.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not limited to this hair
Bright full content, although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still carry out formal modification to the technical scheme described in previous embodiment, or to which part skill
Art feature carries out equivalent substitution.All made form modifications within the thinking enlightenment of the present invention, equivalent substitution etc., all should be wrapped
It is contained within the scope of the present invention.
Claims (6)
1. a kind of air inlet tube device of natural gas engine, including：Air inlet tube（1）, explosion-proof valve base（2）, explosion-proof valve
（3）, air inlet temperature/pressure sensor（4）；It is characterized in that：Explosion-proof valve base（2）Air inlet tube is arranged on by bolt（1）
On, explosion-proof valve（3）It is fixed by bolts to explosion-proof valve base（2）On, air inlet temperature/pressure sensor（4）Head insertion air inlet connecting
Pipe（1）It is interior, and tightened with fixing bolt.
A kind of 2. air inlet tube device of described natural gas engine according to claim 1, it is characterised in that：Air inlet
Adapter（1）Including main pipe（5）, air inlet（6）, electronic throttle mounting flange（7）, gas outlet（8）, air inlet pipe mounting flange
（9）, sensor interface（10）, gaseous mixture bypass flange（11）；Main pipe（5）One end connects air inlet（6）And electronic throttle
Mounting flange（7）, other end connection gas outlet（8）With air inlet pipe mounting flange（9）；Air inlet（6）For circular cross-section, diameter of phi
A sizes are 27~Φ of Φ 30mm；Gas outlet（8）For rectangular cross-sectional, length dimension（B）For 99~101 mm, width dimensions
（C）For 73~75 mm.
A kind of 3. air inlet tube device of described natural gas engine according to claim 1, it is characterised in that：Supervisor
Body（5）Pipeline intracavity section is gradually increased to gas outlet along air motion direction by circular even transition to rectangle, sectional area
（8）Rectangular cross-sectional size.
A kind of 4. air inlet tube device of described natural gas engine according to claim 2, it is characterised in that：Air inlet
Mouthful（6）, gas outlet（8）Section is in 90 ° of angles, with circular arc（R）Turned to for radius, circular arc（R）Size is 93~97 mm, air inlet
Mouthful（6）, gas outlet（8）Along circular arc（R）Tangential direction set；Electronic throttle mounting flange（7）With air inlet pipe Method for Installation
It is blue（9）It is square, is respectively disposed with flange mounting hole in its corner, two end face of flange is in 90 ° of angles, height dimension（D）For 119
~121 mm, axis direction size（E）For 119~121 mm.
A kind of 5. air inlet tube device of described natural gas engine according to claim 1, it is characterised in that：Supervisor
Body（5）Intracavity section turning point sets gaseous mixture to bypass flange（11）, with air inlet pipe mounting flange（9）In 20 ° of angles, explosion-proof valve
Base（2）Main pipe is arranged on by fixing bolt（5）On, explosion-proof valve（3）Explosion-proof valve base is arranged on by fixing bolt（2）
On.
A kind of 6. air inlet tube device of described natural gas engine according to claim 1, it is characterised in that：Supervisor
Body（5）Close to air inlet pipe mounting flange（9）One end, side set sensor interface（10）, with air inlet pipe mounting flange（9）It is in
90 ° of angles, air inlet temperature/pressure sensor（4）Head insertion sensor interface（10）It is interior, and master is tightened in fixing bolt
Body（5）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823672.6A CN107559104A (en) | 2017-09-13 | 2017-09-13 | A kind of air inlet tube device of natural gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823672.6A CN107559104A (en) | 2017-09-13 | 2017-09-13 | A kind of air inlet tube device of natural gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107559104A true CN107559104A (en) | 2018-01-09 |
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ID=60980773
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710823672.6A Pending CN107559104A (en) | 2017-09-13 | 2017-09-13 | A kind of air inlet tube device of natural gas engine |
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| Country | Link |
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| CN (1) | CN107559104A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389553A (en) * | 2019-07-31 | 2019-10-29 | 浪潮商用机器有限公司 | A kind of equipment power dissipation monitoring device and method |
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| CN202756137U (en) * | 2012-08-15 | 2013-02-27 | 潍柴动力西港新能源发动机有限公司 | Natural gas engine gas inlet bending pipe |
| CN203906122U (en) * | 2014-06-04 | 2014-10-29 | 潍柴西港新能源动力有限公司 | Inlet elbow for natural gas engine |
| CN205895433U (en) * | 2016-08-18 | 2017-01-18 | 中国重汽集团济南动力有限公司 | Novel blender for 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 |
| CN107035577A (en) * | 2017-06-02 | 2017-08-11 | 广西玉柴机器股份有限公司 | The air supply system of gas engine peculiar to vessel |
| CN207212515U (en) * | 2017-09-13 | 2018-04-10 | 第一拖拉机股份有限公司 | A kind of air inlet tube device of natural gas engine |
-
2017
- 2017-09-13 CN CN201710823672.6A patent/CN107559104A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202756137U (en) * | 2012-08-15 | 2013-02-27 | 潍柴动力西港新能源发动机有限公司 | Natural gas engine gas inlet bending pipe |
| CN203906122U (en) * | 2014-06-04 | 2014-10-29 | 潍柴西港新能源动力有限公司 | Inlet elbow for natural gas engine |
| CN205895433U (en) * | 2016-08-18 | 2017-01-18 | 中国重汽集团济南动力有限公司 | Novel blender for 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 |
| CN107035577A (en) * | 2017-06-02 | 2017-08-11 | 广西玉柴机器股份有限公司 | The air supply system of gas engine peculiar to vessel |
| CN207212515U (en) * | 2017-09-13 | 2018-04-10 | 第一拖拉机股份有限公司 | A kind of air inlet tube device of natural gas engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389553A (en) * | 2019-07-31 | 2019-10-29 | 浪潮商用机器有限公司 | A kind of equipment power dissipation monitoring device and method |
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