CN202832863U - Pressure-stabilizing gas distributor - Google Patents
Pressure-stabilizing gas distributor Download PDFInfo
- Publication number
- CN202832863U CN202832863U CN2012203672384U CN201220367238U CN202832863U CN 202832863 U CN202832863 U CN 202832863U CN 2012203672384 U CN2012203672384 U CN 2012203672384U CN 201220367238 U CN201220367238 U CN 201220367238U CN 202832863 U CN202832863 U CN 202832863U
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- China
- Prior art keywords
- gas
- pressure
- gas distributor
- piston
- voltage stabilizing
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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 discloses a pressure-stabilizing gas distributor which comprises a tubular body, wherein a tubular cushion chamber is formed in the body; at least one gas inlet and at least two gas outlets that are communicated with the cushion chamber are formed in the body; and an air pressure cushion device is arranged on the body and used for absorbing transient fluctuation of air pressure in the body. The pressure-stabilizing gas distributor can cushion and absorb the transient fluctuation of the air pressure in a gas pipeline in a gas distribution process, so that the gas supply process is more stable, and requirements of a multi-cylinder gas engine on gas supply are met.
Description
Technical field
The utility model relates to a kind of gas distributor, particularly a kind of voltage stabilizing gas distributor for cylinder gas engine.
Background technique
When the multiple casing gas engine is worked, combustion gas need to be transported to each cylinder position.Traditional combustion gas mode of movement is with pipeline combustion gas to be transported to the firing chamber of each cylinder position from source of the gas, and the control valve of control air-flow break-make is set at pipeline.Open control valve, combustion gas will enter into the firing chamber; Combustion gas is for after full, and closed control valve blocks air-flow and gets final product.Combustion gas is transported to the process of each cylinder position from source of the gas, need to carry out combustion gas and distribute, and namely according to the quantity of cylinder position the single channel of source of the gas is exported and is distributed into multichannel output, makes combustion gas can enter into each cylinder position.One of normal operation has the pipeline of a plurality of outlets can realize that this combustion gas distributes.Those skilled in the art can find applicable multiple exit pipeline in GB/T 5369.2 " flared type three-way union body " and GB/T 3746.2 " FERRULETYPE cross fitting body ".For example with a union cross as distributor, the outlet of source of the gas is linked to each other with a mouth of this union cross, its excess-three mouth connects respectively a single cylinder position steam line, just can realize the combustion gas distribution on the three cylinder engine.
This traditional combustion gas mode of movement technology is relatively simple, on function, also only has the break-make control that combustion gas is carried, in the moment of control valve opening/closing, gas pressure transient wave by a relatively large margin can appear in (the especially fuel gas inlet place of cylinder block) in the air delivering pipeline.The speed that the combustion gas of this transient wave meeting severe jamming is carried, so that there are a certain distance in the actual combustion gas numerical value and the design load that are transported in the firing chamber, and this gap is unstable, is not easy to be repaired.In addition, on multicylinder engine, the burning of each cylinder position is not to carry out synchronously, but certain time interval is arranged each other, this just means that the transient wave in each outlet port on gas distributor is nonsynchronous, the transient wave that some outlets produces can cause the parameter such as the stream pressure, density in all the other outlet ports to fluctuate, thereby the transient wave in each outlet port can affect each other, so that the unstability that combustion gas is carried further enlarges, consequence is exactly the actual gas quantity that is filled with in the firing chamber can be fluctuated with respect to design load.The cylinder position is more, and this interactional negative consequence is just larger, and for example under same operating mode, the air pressure fluctuation amplitude of four cylinder position motors will have more approximately 10% than three cylinder positions.When lighting a fire in the firing chamber, no matter combustion gas is excessive or not enough, all can cause the ratio off-target point of combustion gas and air, the combustion efficiency of combustion gas descends, not only can cause the waste of combustion gas, also so that the composition not up to standard in the waste gas increases, can not satisfy increasingly strict gas emission standard.
Because the existence of defects needs to occur a kind of technological means of carrying out voltage stabilizing that combustion gas is distributed.
The model utility content
The utility model is in order to overcome above-mentioned defective of the prior art, a kind of voltage stabilizing gas distributor is provided, in the process that combustion gas distributes, can the air pressure transient wave that occur in the air delivering pipeline be cushioned and absorb, so that the air feed process is more steady, satisfy multi-cylinder position gas engine to the requirement of air feed.
For achieving the above object, the utility model provides following technological scheme:
A kind of voltage stabilizing gas distributor, the body that comprises a tubulose, the inside of described body is the buffer cavity of tubulose, have at least one fuel gas inlet and at least two gas outlets of being connected with described buffer cavity on the described body, and on described body, also be provided with an atmospheric buffer device, be used for the transient wave of absorbent body internal air pressure.
In the technique scheme, described body is provided with one section closed conduct that is used for holding described atmospheric buffer device, is provided with the step shoulder in the thin footpath of a circle in this closed conduct; Described atmospheric buffer device comprises a piston and a pressure-stabilizing spring, described piston can slide in described closed conduct, the limit position that the described piston of described step shoulder restriction slides, the first end of described pressure-stabilizing spring links to each other with described piston, and the second end of described pressure-stabilizing spring links to each other with the bottom of described closed conduct.
In the technique scheme, the bottom of described closed conduct is formed by a plug screw that is screwed on the described body in the mode that is threaded.
In the technique scheme, be arranged with an O shape circle on the described piston, between described piston and described closed conduct, seal.
In the technique scheme, described body is provided with at least two fixedly lugs, is used for described body is fixed.
In the technique scheme, described fuel gas inlet and described gas outlet are equipped with internal thread and outside uncovered slope mouth.
In the technique scheme, the internal diameter of described buffer cavity is the twice of described gas outlet internal diameter at least.
Compared with prior art, the utlity model has following beneficial effect:
1, is arranged on the transient wave that the interior atmospheric buffer device of closed conduct can absorb stream pressure, plays voltage regulation result.
2, the atmospheric buffer device of piston and pressure-stabilizing spring formation has dual voltage regulation result, the first heavy effect be since the elasticity of spring can to offset the fluctuation of air pressure formed, the second heavy effect is because the variable in distance of camber of spring back piston between bottom closed conduct causes that the volume-variation of buffer cavity is formed.This dual voltage regulation result reduces the volume of body in the time of can allowing to design, thereby makes whole voltage stabilizing gas distributor have small and exquisite structure, reduces the materials cost, saves required space is installed.
3, the internal diameter of buffer cavity is more than the twice of gas outlet internal diameter, this is just so that buffer cavity can form sufficient combustion gas deposit with respect to gas outlet, because gas itself possesses certain compressibility, the combustion gas deposit of this abundance just can absorb more air pressure transient wave, so that when body increased the quantity of gas outlet, descending significantly can not appear in voltage regulation result.
4, be used as the bottom of closed conduct with plug screw, its benefit is to adjust the precession amount of plug screw, so just can adjust neatly the elastic force of damping spring, and then makes the voltage regulation performance of gas distributor reach best.
5, the slope mouth of fuel gas inlet and gas outlet setting can cooperate O shape circle that pipe joint is realized good sealing.
Description of drawings
Fig. 1 is profile plan view of the present utility model;
Fig. 2 is the right elevation of Fig. 1;
Fig. 3 is the main sectional view of Fig. 1;
Fig. 4 is the main sectional view of body among Fig. 1;
Fig. 5 is the schematic diagram that the slope mouth of gas outlet cooperates with O shape circle;
Fig. 6 is the main sectional view of piston.
Mark the following drawings mark thereon by reference to the accompanying drawings:
The 1-body, the 101-buffer cavity, the 102-fuel gas inlet, the 103-gas outlet, 104-is lug fixedly, 105-closed conduct, 2-hexagonal socket head plug, 3-pressure-stabilizing spring, 4-piston, 401-annular groove, 402-boss, 5-O shape circle, 6-gas pipeline.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subjected to the restriction of embodiment.
Embodiment 1
As shown in Figures 1 to 4, the voltage stabilizing gas distributor of the present embodiment comprises the body 1 of a tubulose, the inside of body 1 is the buffer cavity 101 of tubulose, have a fuel gas inlet 102 and two gas outlets 103 of being connected with buffer cavity 101 on the body 1, also be provided with two fixedly lug 104 and one section closed conduct 105 on the body 1.Fixedly the position of lug 104 and quantity can arrange flexibly according to the installation environment of reality, need not be limited to the situation shown in Fig. 1 to Fig. 4.As the bottom of playing sealing process, this hexagonal socket head plug 2 is screwed on the body 1 in the mode that is threaded closed conduct 105 by a hexagonal socket head plug 2.Be provided with a piston 4 and a pressure-stabilizing spring 3 in the closed conduct 105, piston 4 can be in closed conduct 105 interior slips.Pressure-stabilizing spring 3 is arranged between piston 4 and the hexagonal socket head plug 2, and its first end links to each other with piston 4, and its second end links to each other with hexagonal socket head plug 2.The precession amount of adjusting hexagonal socket head plug 2 just can be regulated the elastic force of pressure-stabilizing spring 3.As shown in Figure 4, also be provided with the thin footpath of circle step shoulder in the closed conduct 105, in order to the limit position of limited piston 4 slips.
As shown in Figure 6, being provided with a circle at piston 4 be used for to settle the annular groove 401 of O shape circle 5 and one to be used for the boss 402 that matches with the first end of pressure-stabilizing spring 3.For the second end that makes pressure-stabilizing spring 3 connects reliably, a boss can be set also on the surface of hexagonal socket head plug 2.When piston 4 slided within closed conduct 105, the O shape circle in the annular groove 401 sealed between piston 4 and closed conduct 105, prevented that buffer cavity 101 interior air-flows from entering into the space between piston 4 and the hexagonal socket head plug 2.So just can utilize this portion gas that is enclosed between piston 4 and the hexagonal socket head plug 2 as auxiliary buffering, strengthen the effect of voltage stabilizing.
Voltage stabilizing gas distributor at combustion gas process the present embodiment divides timing, the stream pressure transient wave that causes during the control valve ON/OFF be cushioned gas, the pressure-stabilizing spring 3 of chamber 101 interior storages and be enclosed in pressure-stabilizing spring 3 and hexagonal socket head plug 2 between gas absorb, cushion, so that the amplitude of the gaseous-pressure at each gas outlet 103 places fluctuation be controlled in the design pressure value 5% in, realize good voltage regulation result.
On embodiment 1 basis, the difference of the present embodiment is to be increased according to the cylinder bits number of the engine cylinder quantity with gas outlet 103.For example, corresponding to four cylinder engine, gas outlet 103 is made as four; Corresponding to six cylinder engine, gas outlet 103 is made as six.Because this easily imagination of those skilled in the art institute of changing into is so no longer cooperate accompanying drawing to describe.
Increased after the quantity of gas outlet 103, the air-flow transient wave of buffer cavity 101 interior generations also can strengthen thereupon, in order to eliminate this adverse effect, the internal diameter of buffer cavity 101 is the twice of gas outlet 103 internal diameters at least in the present embodiment, thereby can utilize buffer cavity 101 interior stored gases to come the transient wave of buffer gas flow, strengthen the stable gas pressure that combustion gas divides timing.Through actual test, used after the voltage stabilizing gas distributor of the present embodiment, under same operating mode, the air pressure fluctuation amplitude of four cylinder position motors almost has no to change than the situation of three cylinder positions.
Above disclosed only be more excellent specific embodiment of the present utility model, still, the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (7)
1. voltage stabilizing gas distributor, it is characterized in that, the body that comprises a tubulose, the inside of described body is the buffer cavity of tubulose, have at least one fuel gas inlet and at least two gas outlets of being connected with described buffer cavity on the described body, and on described body, also be provided with an atmospheric buffer device, be used for the transient wave of absorbent body internal air pressure.
2. voltage stabilizing gas distributor according to claim 1 is characterized in that, described body is provided with one section closed conduct that is used for holding described atmospheric buffer device, is provided with the step shoulder in the thin footpath of a circle in this closed conduct;
Described atmospheric buffer device comprises a piston and a pressure-stabilizing spring, described piston can slide in described closed conduct, the limit position that the described piston of described step shoulder restriction slides, the first end of described pressure-stabilizing spring links to each other with described piston, and the second end of described pressure-stabilizing spring links to each other with the bottom of described closed conduct.
3. voltage stabilizing gas distributor according to claim 2 is characterized in that, the bottom of described closed conduct is formed by a plug screw that is screwed on the described body in the mode that is threaded.
4. voltage stabilizing gas distributor according to claim 2 is characterized in that, is arranged with an O shape circle on the described piston, is used for sealing between described piston and described closed conduct.
5. voltage stabilizing gas distributor according to claim 1 is characterized in that, described body is provided with at least two fixedly lugs, is used for described body is fixed.
6. voltage stabilizing gas distributor according to claim 1 is characterized in that, described fuel gas inlet and described gas outlet are equipped with internal thread and outside uncovered slope mouth.
7. voltage stabilizing gas distributor according to claim 1 is characterized in that, the internal diameter of described buffer cavity is the twice of described gas outlet internal diameter at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203672384U CN202832863U (en) | 2012-07-26 | 2012-07-26 | Pressure-stabilizing gas distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203672384U CN202832863U (en) | 2012-07-26 | 2012-07-26 | Pressure-stabilizing gas distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832863U true CN202832863U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203672384U Expired - Fee Related CN202832863U (en) | 2012-07-26 | 2012-07-26 | Pressure-stabilizing gas distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832863U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573475A (en) * | 2012-07-26 | 2014-02-12 | 广西玉柴机器股份有限公司 | Pressure-stabilizing fuel gas distributor |
| CN112555078A (en) * | 2020-12-28 | 2021-03-26 | 福建省搜果智能科技有限公司 | Device for improving energy-saving and emission-reducing effects of automobile engine |
-
2012
- 2012-07-26 CN CN2012203672384U patent/CN202832863U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573475A (en) * | 2012-07-26 | 2014-02-12 | 广西玉柴机器股份有限公司 | Pressure-stabilizing fuel gas distributor |
| CN112555078A (en) * | 2020-12-28 | 2021-03-26 | 福建省搜果智能科技有限公司 | Device for improving energy-saving and emission-reducing effects of automobile engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20170726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |