CN206617247U - A kind of natural gas engine and its gas handling system - Google Patents
A kind of natural gas engine and its gas handling system Download PDFInfo
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- CN206617247U CN206617247U CN201720119687.XU CN201720119687U CN206617247U CN 206617247 U CN206617247 U CN 206617247U CN 201720119687 U CN201720119687 U CN 201720119687U CN 206617247 U CN206617247 U CN 206617247U
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- air inlet
- gas
- handling system
- stablizer
- 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
The utility model provides a kind of natural gas engine gas handling system, natural gas engine gas handling system includes air inlet pipe, blender and the air inlet voltage-stablizer being arranged between air inlet pipe and blender, air inlet voltage-stablizer has air inlet pressure stabilizing cavity, the air inlet of air inlet voltage-stablizer is connected with the gas outlet of blender, and the gas outlet of air inlet voltage-stablizer is connected with the air inlet of air inlet pipe.The utility model carries out secondary mixing using air inlet voltage-stablizer tangential admission to mixed gas, air inlet voltage-stablizer and the separate setting of air inlet pipe, and air inlet voltage-stablizer is not directly connected to cylinder, air inlet voltage-stablizer can be firstly gathered at by the gas of blender, subsequently into air inlet pipe, influence of the intake process to mixed admission can just be weakened by air inlet pressure stabilizing cavity, so as to improve the gas mixing uniformity of natural gas engine.
Description
Technical field
The utility model is related to technical field of engines, more specifically to a kind of natural gas engine gas handling system,
The utility model further relates to a kind of natural gas engine with above-mentioned gas handling system.
Background technology
Prior art is used as air inlet pressure stabilizing cavity by the cavity in air inlet pipe, realizes the mixing of air and natural gas.But,
Air inlet pipe is connected by inlet manifold or directly with the air intake duct of cylinder, to the gas inside air inlet pressure stabilizing cavity in intake process
Flowing, mixing, pressure influence are larger, have impact on the gas mixing uniformity of natural gas engine；Also affect and pressed after air throttle
The stability of power measurement.
Meanwhile, natural gas engine throttle opening is obtained by measuring suction press, and stable suction press is surveyed
Amount can more accurately control air throttle.
In summary, the influence in intake process to gas mixing effect how is reduced, to improve natural gas engine
Gas mixing uniformity, it is ensured that the stability of pressure measxurement, is current those skilled in the art technical problem urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of natural gas engine gas handling system, to reduce air inlet
During influence to gas mixing effect, so as to improve the gas mixing uniformity of natural gas engine.Meanwhile, pressure and temp
Sensor is installed on air inlet voltage-stablizer, the stability of measurement pressure is ensure that, so as to lift the control accuracy of engine.
Another object of the present utility model is to provide a kind of natural gas engine with above-mentioned gas handling system, to reduce
To the influence of gas mixing effect in intake process, so as to improve the gas mixing uniformity of natural gas engine.
In order to achieve the above object, the utility model provides following technical scheme：
A kind of natural gas engine gas handling system, including air inlet pipe and blender, in addition to be arranged on the air inlet pipe and
Air inlet voltage-stablizer between the blender, the air inlet voltage-stablizer has air inlet pressure stabilizing cavity, the air inlet of the air inlet voltage-stablizer
Mouth is connected with the gas outlet of the blender, and the gas outlet of the air inlet voltage-stablizer is connected with the air inlet of the air inlet pipe.
It is preferred that, in above-mentioned natural gas engine gas handling system, it is additionally provided with the air inlet voltage-stablizer for installing pressure
The sensor mounting hole of force snesor.
It is preferred that, in above-mentioned natural gas engine gas handling system, the air inlet pressure stabilizing cavity is cylindrical cavity.
It is preferred that, in above-mentioned natural gas engine gas handling system, the air inlet of the air inlet pressure stabilizing cavity is tangentially-arranged along its,
The gas outlet of the air inlet pressure stabilizing cavity is axially arranged along its.
It is preferred that, in above-mentioned natural gas engine gas handling system, inlet flange is provided with the air inlet voltage-stablizer and is gone out
Gas flange, the inlet flange is threadedly coupled with the blender；The outlet flange is threadedly coupled with the air inlet pipe.
It can be seen from above-mentioned technical scheme that, the natural gas engine gas handling system that the utility model is provided includes air inlet
Pipe, blender and the air inlet voltage-stablizer being arranged between air inlet pipe and blender, air inlet voltage-stablizer have air inlet pressure stabilizing cavity, air inlet
The air inlet of pressure stabilizing cavity is connected with the gas outlet of blender, and the gas outlet of air inlet pressure stabilizing cavity is connected with the air inlet of air inlet pipe.
The course of work of above-mentioned natural gas engine gas handling system is as follows：
Engine air, natural gas, EGR (Exhaust Gas Recirculation abbreviation, exhaust gas recirculatioon) waste gas
The air inlet that blender enters air inlet voltage-stablizer is flowed through, subsequently into air inlet pressure stabilizing cavity, makes mixed gas in air inlet pressure stabilizing cavity
Once rotation mixing is carried out, performance is then entered by the gas outlet of air inlet voltage-stablizer, finally enters and is burnt in cylinder.
The utility model carries out secondary mixing using air inlet voltage-stablizer to mixed gas, and air inlet pressure stabilizing cavity and air inlet pipe are mutual
It is independently arranged, and air inlet voltage-stablizer is not directly connected to cylinder, can reduce in intake process and gas mixing is imitated
The influence of fruit, so as to improve the gas mixing uniformity of natural gas engine.Meanwhile, pressure-temperature sensor is installed on air inlet
Voltage-stablizer, ensure that the stability of measurement pressure, so as to lift the control accuracy of engine.
The utility model additionally provides a kind of natural gas engine, including gas handling system, and the gas handling system is above-mentioned
A kind of natural gas engine gas handling system, because above-mentioned natural gas engine gas handling system has the effect above, with above-mentioned day
The natural gas engine of right gas engine aspirating system has same effect, therefore repeats no more herein.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the natural gas engine gas handling system that the utility model embodiment is provided；
Fig. 2 is the structural representation for the air inlet voltage-stablizer that the utility model embodiment is provided.
Embodiment
The utility model embodiment provides a kind of natural gas engine gas handling system, reduces in intake process to gas
The influence of mixed effect, so as to improve the gas mixing uniformity of natural gas engine.Meanwhile, pressure-temperature sensor is installed
In air inlet voltage-stablizer, the stability of measurement pressure is ensure that, so as to lift the control accuracy of engine.
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
Refer to accompanying drawing 1-2, the natural gas engine gas handling system that the utility model embodiment is provided include air inlet pipe 1,
Blender 3 and the air inlet voltage-stablizer 2 being arranged between air inlet pipe 1 and blender 3, air inlet voltage-stablizer 2 have air inlet pressure stabilizing cavity, enter
The air inlet 21 of gas pressure stabilizing cavity is connected with the gas outlet of blender 3, the gas outlet 22 of air inlet pressure stabilizing cavity and the air inlet of air inlet pipe 1
Connection.
It should be noted that above-mentioned air inlet voltage-stablizer 2 can be processed by casting, cast aluminium can be used, can also be made
Processed with plastics or other modes welded.
The course of work of above-mentioned natural gas engine gas handling system is as follows：
The blended device 3 of engine air, natural gas, EGR exhaust is mixed, the rear air inlet for entering air inlet pressure stabilizing cavity
21, subsequently into air inlet pressure stabilizing cavity, mixed gas is carried out mixed once in air inlet pressure stabilizing cavity, then by air inlet pressure stabilizing cavity
Gas outlet 22 enters air inlet pipe 1, finally enters and is burnt in cylinder.
The utility model carries out secondary mixing, air inlet pressure stabilizing cavity and the phase of air inlet pipe 1 using air inlet pressure stabilizing cavity to mixed gas
Mutually it is independently arranged, and air inlet pressure stabilizing cavity is not directly connected to cylinder, is reduced in intake process to gas mixing effect
Influence, so as to improve the gas mixing uniformity of natural gas engine.
In addition, the utility model can be such that the gas outlet of air inlet pipe 1 is directly connected with inlet cylinder, air inlet can be reduced
The volume of pipe 1, convenient arrangement, the situation with gas manifold inlet pipe 1 can not be arranged by being especially adapted for use in put-put.The natural gas is sent out
Motivation gas handling system further improves engine charge flow direction, improves efficiency of combustion.
It is preferred that, the sensor mounting hole 23 for installing pressure sensor is additionally provided with air inlet voltage-stablizer 2.Using
When, pressure sensor is installed at sensor mounting hole 23, the pressure after air throttle is measured by the pressure sensor, due to
Mixed effect in the air inlet pressure stabilizing cavity is not influenceed by intake process, so the stability of pressure measxurement after air throttle is ensure that,
So as to accurately control throttle opening, and then air inlet amount is accurately controlled, finally ensure that engine charge control
The accuracy of system, also ensures that the stability of engine performance.It is understood that when being provided with manifold in air inlet pipe 1,
Sensor mounting hole 23 can also be arranged in air inlet pipe 1.
For the ease of processing, air inlet pressure stabilizing cavity is cylindrical cavity, shortens axial direction of the gas handling system along cylinder
Length, convenient arrangement.Certainly, the air inlet pressure stabilizing cavity can also be rectangle, strip etc., and the utility model does not do specific limit to this
It is fixed.
In the natural gas engine gas handling system that above-described embodiment is provided, the air inlet 21 of air inlet pressure stabilizing cavity is tangentially set along it
Put, the gas outlet 22 of air inlet pressure stabilizing cavity is axially arranged along its.The air inlet pressure stabilizing cavity uses gas after tangential admission, air inlet to enter
Rotated in gas pressure stabilizing cavity, the mixing of natural gas and air can be promoted in rotary course, further increase natural gas hair
The air inlet mixing uniformity of motivation, so as to ensure the stability of engine charge, and then ensure that the one of each cylinder burning of engine
Cause property, while further increasing the accuracy of pressure measxurement after air throttle.
In addition, the small volume of the air inlet voltage-stablizer 2, convenient arrangement.It is interchangeable, the air inlet of above-mentioned air inlet pressure stabilizing cavity
21 can also be set along other directions, such as radially.
In the specific embodiment of the utility model one, the gas outlet of air inlet pipe 1 is additionally provided with manifold, and the present embodiment being capable of profit
Reduce influence of the intake process to gas mixing effect in air inlet pipe 1 with manifold, further ensure the uniformity of gas mixing.
The natural gas engine gas handling system of the present embodiment is applied to that the engine model of manifold can be arranged.It is understood that this
The gas outlet of the air inlet pipe 1 of utility model can also be not provided with manifold, be directly connected with cylinder.
For the ease of dismounting and overhauling, it is preferred that be provided with inlet flange and outlet flange, air inlet on air inlet voltage-stablizer 2
Flange is threadedly coupled with blender 3；Outlet flange is threadedly coupled with air inlet pipe 1.Air inlet voltage-stablizer 2 and blender 3 and air inlet pipe 1
It is bolted, air inlet voltage-stablizer 2, blender 3 and the corresponding link position of air inlet pipe 1 are provided with screwed hole, pass through
Bolt is fastened, simple in construction.Certainly, above-mentioned air inlet voltage-stablizer 2 can also weld with blender 3 and air inlet pipe 1 or use it
He is connected mode, and the utility model is no longer repeated one by one.
The utility model embodiment additionally provides a kind of natural gas engine gas handling system, and the gas handling system is any of the above-described
The natural gas engine gas handling system that item embodiment is provided, reduces the influence to gas mixing effect in intake process, so that
The gas mixing uniformity of natural gas engine is improved, its advantage is brought by natural gas engine gas handling system, specifically
Refer to part related in above-described embodiment, just repeat no more herein.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (6)
1. a kind of natural gas engine gas handling system, including air inlet pipe (1) and blender (3), it is characterised in that also including setting
Air inlet voltage-stablizer (2) between the air inlet pipe (1) and the blender (3), the air inlet voltage-stablizer (2) has air inlet steady
Chamber is pressed, the air inlet (21) of the air inlet pressure stabilizing cavity connects with the gas outlet of the blender (3), the air inlet pressure stabilizing cavity goes out
Gas port (22) is connected with the air inlet of the air inlet pipe (1).
2. natural gas engine gas handling system according to claim 1, it is characterised in that on the air inlet voltage-stablizer (2)
It is additionally provided with the sensor mounting hole (23) for installing pressure sensor.
3. natural gas engine gas handling system according to claim 1, it is characterised in that the air inlet pressure stabilizing cavity is cylinder
Shape cavity.
4. natural gas engine gas handling system according to claim 3, it is characterised in that the air inlet of the air inlet pressure stabilizing cavity
Mouth (21) is tangentially-arranged along its, and the gas outlet (22) of the air inlet pressure stabilizing cavity is axially arranged along its.
5. the natural gas engine gas handling system according to claim any one of 1-4, it is characterised in that the air inlet voltage stabilizing
Inlet flange and outlet flange are provided with device (2), the inlet flange is threadedly coupled with the blender (3)；The outlet
Flange is threadedly coupled with the air inlet pipe (1).
6. a kind of natural gas engine, including gas handling system, it is characterised in that the gas handling system is that claim 1-5 such as appoints
Natural gas engine gas handling system described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720119687.XU CN206617247U (en) | 2017-02-08 | 2017-02-08 | A kind of natural gas engine and its gas handling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720119687.XU CN206617247U (en) | 2017-02-08 | 2017-02-08 | A kind of natural gas engine and its gas handling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617247U true CN206617247U (en) | 2017-11-07 |
Family
ID=60230657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720119687.XU Active CN206617247U (en) | 2017-02-08 | 2017-02-08 | A kind of natural gas engine and its gas handling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617247U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160852A (en) * | 2020-10-09 | 2021-01-01 | 潍柴动力股份有限公司 | Air inlet mixing device and engine |
| CN115324788A (en) * | 2022-10-14 | 2022-11-11 | 潍柴动力股份有限公司 | Engine air inlet structure and engine |
-
2017
- 2017-02-08 CN CN201720119687.XU patent/CN206617247U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160852A (en) * | 2020-10-09 | 2021-01-01 | 潍柴动力股份有限公司 | Air inlet mixing device and engine |
| CN112160852B (en) * | 2020-10-09 | 2022-04-05 | 潍柴动力股份有限公司 | Air inlet mixing device and engine |
| CN115324788A (en) * | 2022-10-14 | 2022-11-11 | 潍柴动力股份有限公司 | Engine air inlet structure and engine |
| CN115324788B (en) * | 2022-10-14 | 2023-01-20 | 潍柴动力股份有限公司 | Engine air inlet structure and engine |
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