CN201246235Y - Vacuum degree-controlled gas mixing device for automatic pressure regulation - Google Patents
Vacuum degree-controlled gas mixing device for automatic pressure regulation Download PDFInfo
- Publication number
- CN201246235Y CN201246235Y CNU2008200997481U CN200820099748U CN201246235Y CN 201246235 Y CN201246235 Y CN 201246235Y CN U2008200997481 U CNU2008200997481 U CN U2008200997481U CN 200820099748 U CN200820099748 U CN 200820099748U CN 201246235 Y CN201246235 Y CN 201246235Y
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- CN
- China
- Prior art keywords
- combustion gas
- diaphragm
- gas mixing
- control volume
- movable chamber
- 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.)
- Expired - Fee Related
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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
Abstract
The utility model relates to a fuel gas mixing device. An air stream mixing channel with a throat opening is formed between a choke valve component and a throttle valve component; a membrane moving cavity is formed between a fuel gas control body and a fuel gas mixing body; a piston membrane is arranged in the membrane moving cavity; a vacuum collecting hole is formed at the throat opening; a vacuum collecting channel is formed between the lower part of the membrane moving cavity and the vacuum collecting hole; a pressure stabilized membrane is arranged in a pressure stabilized membrane moving cavity; the upper part of the pressure stabilized membrane moving cavity is communicated with an atmosphere, and a pressure stabilized spring is arranged at the upper part of the pressure stabilized membrane moving cavity; and an air inlet sealing control member automatically opens and closes a fuel gas channel according to the intensity of fuel gas pressure, so as to ensure that the fuel gas pressure of a fuel gas storage cavity and air pressure required for an engine are automatically adjusted to be consistent. The device has the advantages that the fuel gas supply is increased with the increased of load, the service life of the engine is prolonged, the emission is reduced, and the cost is low; and because the fuel gas supply is automatically adjusted according to power, and energy can be saved by 30 to 40 percent.
Description
Technical field
The utility model relates to a kind of general-purpose engine and motorcycle engine gas mixing unit of using gases fuel, this gas mixing unit utilizes the pressure difference automatic Regulation of gaseous-pressure and atmospheric pressure and uses the required combustion gas tolerance of vacuum degree control, and it can form inflammable mixture for work by combustion usefulness with gaseous fuel and air mixing.
Background technique
On the general-purpose engine of using gases fuel, often be provided with the combustion gas mixing control gear, the effect of this combustion gas mixing control gear is similar to Carburetor, be that fuel and air mixing are formed inflammable mixture, just liquid fuel need not be atomized, because what itself used is exactly vaporized fuel, these gaseous fuels mainly comprise liquid gas, rock gas, gas, coal gas and biogas etc.The combustion gas mixing control gear of widespread usage utilizes the collection of below the throtlle valve negative pressure to carry out the unidirectional principle of opening to design in the market, between closure and cylinder head, be provided with the negative pressure that is communicated with the elastomer diaphragm rear portion and gather the hole, the diaphragm front end is provided with plug, and plug is positioned at the size that the fuel air passage is used to control the fuel air passage.When inflammable mixture entered cylinder head by closure, negative pressure was gathered the hole and is promptly produced negative pressure, and plug is opened by suction with diaphragm, and it is big that fuel air passage aperture becomes.Along with the increase of load, the aperture of closure also becomes greatly, and the negative pressure that this moment, negative pressure collection hole produced diminishes, cause fuel air passage aperture to diminish thus and form zero load and the required the same combustion gas of maximum load, the waste resource does not have energy-saving effect, and mixed gas is dense partially, causes discharging poor.From desirable working state, along with load increases, the fuel inlet also should increase, and could form abundant the burning, promptly negative pressure should with load positive correlation.As can be seen from the above analysis, existing combustion gas mixing control gear is just in time opposite, and negative pressure and load are negative correlation, and gas consumption is increased with the increase of load, this its mainly not enough.The matching gap of plug and fuel air passage is difficult to grasp in addition, and combustion gas easily leaks in the atmosphere and goes.In a word, though existing combustion gas mixing control gear is gathered the susceptibility height, complex structure, the waste resource does not have energy-saving effect, and it is poor to discharge.The more important thing is, gas consumption is increased with the increase of load.
The model utility content
At the prior art above shortcomings, the purpose of this utility model provides a kind of gas mixing unit that utilizes the pressure difference automatic Regulation of gaseous-pressure and atmospheric pressure and use vacuum degree control.
The technical solution of the utility model is achieved in that the gas mixing unit of automatic Regulation with vacuum degree control, comprise the combustion gas mixing body, combustion gas mixing body two ends are provided with chock plate parts and closure parts, it between chock plate parts and closure parts the air-flow hybrid channel that has aditus laryngis, it is characterized in that: it also comprises the combustion gas control volume, form the movable chamber of diaphragm between combustion gas control volume and combustion gas mixing body, diaphragm is provided with the piston diaphragm in the movable chamber, and piston diaphragm edge is held between combustion gas control volume and the combustion gas mixing body the movable chamber of diaphragm is divided into two-part up and down; Be provided with the blast tube of connection on combustion gas control volume and combustion gas mixing body, blast tube communicates with the air-flow hybrid channel, and piston one end is connected with the piston diaphragm, and the piston the other end is in taper and the blast tube piston sleeve that enters the combustion gas mixing body; The aditus laryngis place is provided with degree of vacuum and gathers the hole, being provided with the degree of vacuum acquisition channel between bottom, the movable chamber of diaphragm and the degree of vacuum collection hole communicates, the combustion gas mixing body is provided with the atmosphere that is communicated with top, the movable chamber of diaphragm through hole mutually, is provided with return spring between piston diaphragm and the combustion gas control volume.
Further, it also comprises sealing cover, form the movable chamber of voltage stabilizing diaphragm between sealing cover and combustion gas control volume, the voltage stabilizing diaphragm is provided with the voltage stabilizing diaphragm in the movable chamber, voltage stabilizing diaphragm edge is held between combustion gas control volume and the sealing cover the movable chamber of voltage stabilizing diaphragm is divided into two-part up and down, bottom, the movable chamber of voltage stabilizing diaphragm communicates with atmosphere and is provided with pressure-stabilizing spring, and top, the movable chamber of voltage stabilizing diaphragm is divided into the combustion gas storing cavity, and the combustion gas storing cavity communicates with the blast tube of combustion gas control volume; In the combustion gas storing cavity, be provided with air inlet sealing controls and control lever, shipping and reselling on another market of lever of control is fixed on the combustion gas control volume, control lever one end is connected with the voltage stabilizing diaphragm, the other end is connected with the air inlet sealing controls, and the air inlet sealing controls is under leverage or open or close the air inlet front end of combustion gas control volume blast tube.
Be provided with the combustion gas adjusting screw on the combustion gas control volume, the combustion gas adjusting screw stretches in the blast tube to change blast tube air inlet cross-section area, and the combustion gas adjusting screw is provided with locking spring.
Be provided with piston sleeve in the blast tube of combustion gas mixing body, piston cone body one end stretches in the piston sleeve, and the big end of cone is provided with step, and step is provided with O-ring seals.
The utility model utilizes the pressure difference of voltage stabilizing diaphragm, pressure-stabilizing spring, gaseous-pressure and atmospheric pressure to form automatic Regulation, when combustion gas storing cavity gas pressure is big, the trustworthy pressuring film plate of gaseous-pressure is toward pressing down, and the air inlet sealing controls is just closed the air inlet front end of blast tube; Combustion gas storing cavity atmospheric pressure hour, the trustworthy pressuring film plate of pressure-stabilizing spring up pushes away, and the air inlet sealing controls is just opened the air inlet front end of blast tube.When passing through aditus laryngis, combustion gas produces degree of vacuum; the utility model utilizes this principle and designs; under the degree of vacuum effect, diaphragm drive piston moves downward opens blast tube, and load is big more; the atmosphere air inflow is big more; the degree of vacuum that produces is big more, and the throttle opening of combustion gas mixing passage is just big more, and combustion gas enters many more; be that fuel gas supply increases with load, return spring up pushes up the sealing blast tube to piston during shutdown.The working state that this is desirable just makes the service behaviour of internal-combustion engine be greatly improved thus, and the performance of internal-combustion engine is demonstrated fully.
The utility model cost is low, because the fuel gas supply amount can be regulated automatically according to power, has obvious energy-saving effect, the energy-conservation 30-40% that reaches.
Description of drawings
Fig. 1-the utility model structural representation;
Fig. 2-Fig. 1 side view.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, Fig. 2, from the figure as can be seen, the utility model gas mixing unit, comprise combustion gas mixing body 1, combustion gas control volume 15 and sealing cover 22, combustion gas mixing body 1 two ends are provided with chock plate parts 2 and closure parts 3, it between chock plate parts 2 and the closure parts 3 the air-flow hybrid channel 6 that has single aditus laryngis or double-throat 4,1 of combustion gas control volume 15 and combustion gas mixing body form the movable chamber 13 of diaphragm, diaphragm is provided with piston diaphragm 16 in the movable chamber 13, and piston diaphragm 16 edges are held between combustion gas control volume 15 and the combustion gas mixing body 1 the movable chamber 13 of diaphragm is divided into two-part up and down.Be respectively equipped with connecting head 27 and connecting tube 28 connections of blast tube 30, two blast tubes 30 by two ends on combustion gas control volume 15 and combustion gas mixing body 1, the blast tube 30 after the connection communicates with air-flow hybrid channel 6.Be provided with piston sleeve 7 in the blast tube 30 of combustion gas mixing body, piston 10 1 ends are connected with the piston diaphragm, and piston 10 the other ends are taper and enter in the piston sleeve 7 that the big end of cone is provided with step, and step is provided with O-ring seals 8.Aditus laryngis 4 places are provided with degree of vacuum and gather hole 5, and movable 13 bottoms, chamber of diaphragm are gathered between the hole 5 with degree of vacuum and are provided with degree of vacuum acquisition channel 9, and combustion gas mixing body 1 is provided with and the atmosphere of the movable chamber of diaphragm 13 tops connection through hole 11 mutually.Be provided with return spring 12 between piston diaphragm 16 and the combustion gas control volume 15, return spring 12 1 ends are positioned at the location hole of the spring 14 on the combustion gas control volume 15.
15 of sealing cover 22 and combustion gas control volumes form the movable chamber 20 of voltage stabilizing diaphragm, and the voltage stabilizing diaphragm is provided with voltage stabilizing diaphragm 19 in the movable chamber 20, and voltage stabilizing diaphragm 19 edges are held between combustion gas control volume 15 and the sealing cover 22 the movable chamber 20 of voltage stabilizing diaphragm is divided into two-part up and down.20 bottoms, the movable chamber of voltage stabilizing diaphragm are provided with voltage stabilizing adjusting screw 23 and pressure-stabilizing spring 21, voltage stabilizing adjusting screw 23 is threaded with hole on the sealing cover 22, pressure-stabilizing spring 21 is located between voltage stabilizing adjusting screw 23 and the voltage stabilizing diaphragm 19, voltage stabilizing adjusting screw 23 is provided with atmosphere phase through hole 24, so that the combustion gas air pressure on top, the movable chamber of voltage stabilizing diaphragm is regulated consistent with the required air pressure of supply engine automatically.Top, the movable chamber of voltage stabilizing diaphragm is divided into combustion gas storing cavity 18, and combustion gas storing cavity 18 communicates with the blast tube 30 of combustion gas control volume; In combustion gas storing cavity 18, be provided with air inlet sealing controls 17 and control lever 29, shipping and reselling on another market of control lever 29 31 is fixed on the combustion gas control volume 15 by support, control lever 29 1 ends are connected with voltage stabilizing diaphragm 19, the other end is connected with air inlet sealing controls 17, and air inlet sealing controls 17 is under leverage or open or close the air inlet front end of combustion gas control volume blast tube.
Be provided with combustion gas adjusting screw 25 on combustion gas control volume 15, combustion gas adjusting screw 25 stretches in the blast tube 30 to change blast tube air inlet cross-section area, and combustion gas adjusting screw 25 is provided with locking spring 26.Combustion gas adjusting screw 25 is regulated blast tube 30 gas flows, and pull-off spring 26 prevents that combustion gas adjusting screw 25 from coming off.
Claims (4)
1, the automatic Regulation gas mixing unit of vacuum degree control, comprise combustion gas mixing body (1), combustion gas mixing body (1) two ends are provided with chock plate parts (2) and closure parts (3), it between chock plate parts (2) and closure parts (3) the air-flow hybrid channel (6) that has aditus laryngis (4), it is characterized in that: it also comprises combustion gas control volume (15), form the movable chamber (13) of diaphragm between combustion gas control volume (15) and combustion gas mixing body (1), be provided with piston diaphragm (16) in the movable chamber of diaphragm (13), two-part about piston diaphragm (16) edge is held between combustion gas control volume (15) and the combustion gas mixing body (1) the movable chamber of diaphragm (13) is divided into; On combustion gas control volume (15) and combustion gas mixing body (1), be provided with the blast tube (30) of connection, blast tube (30) communicates with air-flow hybrid channel (6), piston (10) one ends are connected with piston diaphragm (16), and the piston the other end is taper and enters in the blast tube of combustion gas mixing body; Aditus laryngis (4) is located to be provided with degree of vacuum and is gathered hole (5), being provided with degree of vacuum acquisition channel (9) between bottom, the movable chamber of diaphragm and the degree of vacuum collection hole (5) communicates, combustion gas mixing body (1) is provided with the atmosphere that is communicated with top, the movable chamber of diaphragm through hole (11) mutually, is provided with return spring (12) between piston diaphragm (16) and the combustion gas control volume (15).
2, gas mixing unit according to claim 1, it is characterized in that: it also comprises sealing cover (22), form the movable chamber (20) of voltage stabilizing diaphragm between sealing cover (22) and combustion gas control volume (15), be provided with voltage stabilizing diaphragm (19) in the movable chamber of voltage stabilizing diaphragm (20), voltage stabilizing diaphragm (19) edge is held between combustion gas control volume (15) and the sealing cover (22) the movable chamber of voltage stabilizing diaphragm (20) is divided into two-part up and down, bottom, the movable chamber of voltage stabilizing diaphragm communicates with atmosphere and is provided with pressure-stabilizing spring (21), top, the movable chamber of voltage stabilizing diaphragm is divided into combustion gas storing cavity (18), and combustion gas storing cavity (18) communicates with the blast tube (30) of combustion gas control volume; In combustion gas storing cavity (18), be provided with air inlet sealing controls (17) and control lever (29), ship and resell on another market (31) of control lever (29) are fixed on the combustion gas control volume (15), control lever (29) one ends are connected with voltage stabilizing diaphragm (19), the other end is connected with air inlet sealing controls (17), and air inlet sealing controls (17) is under leverage or open or close the air inlet front end of combustion gas control volume blast tube.
3, gas mixing unit according to claim 1 and 2, it is characterized in that: on combustion gas control volume (15), be provided with combustion gas adjusting screw (25), combustion gas adjusting screw (25) stretches in the blast tube (30) to change blast tube air inlet cross-section area, and combustion gas adjusting screw (25) is provided with locking spring (26).
4, gas mixing unit according to claim 3, it is characterized in that: in the blast tube of combustion gas mixing body (1), be provided with piston sleeve (7), piston cone body one end stretches in the piston sleeve (7), and the big end of cone is provided with step, and step is provided with O-ring seals (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200997481U CN201246235Y (en) | 2008-08-19 | 2008-08-19 | Vacuum degree-controlled gas mixing device for automatic pressure regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200997481U CN201246235Y (en) | 2008-08-19 | 2008-08-19 | Vacuum degree-controlled gas mixing device for automatic pressure regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246235Y true CN201246235Y (en) | 2009-05-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200997481U Expired - Fee Related CN201246235Y (en) | 2008-08-19 | 2008-08-19 | Vacuum degree-controlled gas mixing device for automatic pressure regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246235Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943085A (en) * | 2010-09-30 | 2011-01-12 | 苏州市双马机电有限公司 | Automatic gas pressure regulator |
| CN105020058A (en) * | 2015-08-03 | 2015-11-04 | 湖州新奥利吸附材料有限公司 | Gas mixing device of internal combustion engine |
-
2008
- 2008-08-19 CN CNU2008200997481U patent/CN201246235Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943085A (en) * | 2010-09-30 | 2011-01-12 | 苏州市双马机电有限公司 | Automatic gas pressure regulator |
| CN105020058A (en) * | 2015-08-03 | 2015-11-04 | 湖州新奥利吸附材料有限公司 | Gas mixing device of internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20110819 |