CN1959094A - Gas supply pressure conversion device for medium and small internal combustion engine - Google Patents
Gas supply pressure conversion device for medium and small internal combustion engine Download PDFInfo
- Publication number
- CN1959094A CN1959094A CNA2006100952414A CN200610095241A CN1959094A CN 1959094 A CN1959094 A CN 1959094A CN A2006100952414 A CNA2006100952414 A CN A2006100952414A CN 200610095241 A CN200610095241 A CN 200610095241A CN 1959094 A CN1959094 A CN 1959094A
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- Prior art keywords
- pressure
- valve
- combustion engine
- air
- housing
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- 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.)
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 15
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 32
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 239000002737 fuel gas Substances 0.000 claims description 8
- 239000004615 ingredient Substances 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 5
- 230000006837 decompression Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 28
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 12
- 239000003949 liquefied natural gas Substances 0.000 abstract description 8
- 239000003915 liquefied petroleum gas Substances 0.000 abstract description 8
- 239000003345 natural gas Substances 0.000 abstract description 4
- 239000003034 coal gas Substances 0.000 abstract description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
Images
Classifications
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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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- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
A gas supply pressure conversion device for a medium and small internal combustion engine is characterized in that: the device comprises a pressure stabilizing controller, wherein a pressure reducing shutoff valve is arranged on an air inlet channel of the pressure stabilizing controller, and a mixing ratio shutoff valve is arranged on an air outlet channel of the pressure stabilizing controller. The pressure stabilizing controller includes one hollow casing, one diaphragm inside the casing to separate the casing into one pressure stabilizing air passing cavity and one balancing cavity communicated with the outside, one air inlet and one air outlet communicated with the pressure stabilizing air passing cavity, one air inlet valve in the air inlet, and one pressure stabilizing regulating mechanism set between the valve port of the air inlet valve and the diaphragm. The invention has the advantages of simple structure, low cost and wide application range, can realize the pressure reduction conversion and stable output of high and low air source pressure, and ensures that the internal combustion engine can be supplied by a high-pressure air source, such as CNG compressed natural gas, LPG liquefied petroleum gas and LNG liquefied natural gas, and also can be supplied by a low-pressure air source, such as NG natural gas, coal gas, methane and the like, and has wide application range.
Description
(1), technical field
The present invention relates to a kind of decompressor, particularly a kind of compact internal combustion engine atmospheric pressure conversion equipment.
(2), background technique
The existing fuel gas supply device that is used for internal-combustion engine generally is made of voltage-stabilizing controller and multi-step pressure reduction valve, and it is by conversion that high-pressure air source is repeatedly reduced pressure, so that the combustible gas of setup pressure value to be provided to internal-combustion engine.This apparatus structure complexity, cost height, and only be applicable to high-pressure air source, as CNG compressed natural gas, LPG liquefied petroleum gas (LPG) and LNG LNG Liquefied natural gas etc., but for low-pressure gas source, as NG rock gas, coal gas and biogas etc., be multi-step pressure reduction because above-mentioned fuel gas supply device carries out, the combustible gas hypotony after its decompression conversion, the burning needs that can't satisfy internal-combustion engine are and inapplicable, and using scope is narrow.
(3), summary of the invention
Purpose of the present invention just provides a kind of simple in structure, with low cost and compact internal combustion engine atmospheric pressure conversion equipment that using scope is wide, and it can be realized the step-down conversion of high and low bleed pressure and stable output.
The objective of the invention is to realize that by such technological scheme it includes voltage-stabilizing controller, the gas-entered passageway of this voltage-stabilizing controller is provided with depressurize stop valve, and outlet passageway is provided with the proportions of ingredients shutoff valve.
The present invention is installed between external air source and the carburetors for internal combustion engines.At first regulate depressurize stop valve,, make pressure of its output combustible gas satisfy the inlet pressure of internal combustion engines requirement the decompression of damming of the high pressure of external air source or low-pressure gas source; By voltage-stabilizing controller the combustible gas that enters in it is carried out the voltage stabilizing adjusting again; At last by the proportions of ingredients shutoff valve, regulate the amount of the combustible gas of voltage-stabilizing controller output, make the combustible gas and the air mixing that enter Carburetor, form the inflammable mixture that satisfies the combustion in IC engine needs, make externally stable outputting power of internal-combustion engine with certain pressure and suitable air fuel ratio.
Described voltage-stabilizing controller is a prior art, it includes a hollow housing, the diaphragm that is positioned at housing is separated into the counter balance pocket that voltage stabilizing is crossed air cavity and communicated with the external world with the inner chamber of housing, housing is provided with voltage stabilizing and crosses suction port and the air outlet that air cavity communicates, the suction port place is provided with suction valve, is provided with the voltage stabilizing controlling mechanism between the valve port of suction valve and the diaphragm.Pressure regulating mechanism comprises and has the adjustment seat of regulating bolt, and described adjustment seat is positioned at that the right side and the housing of articulating point is affixed, and an end of spring is against on the lever, and the other end stretches in the adjustment seat and is against and regulates on the bolt.
Owing to adopted technique scheme, simple in structure, with low cost and advantage that using scope is wide that the present invention has, it can be realized the step-down conversion of high and low bleed pressure and stable output, make the internal-combustion engine not only can be by the high-pressure air source air feed, as CNG compressed natural gas, LPG liquefied petroleum gas (LPG) and LNG LNG Liquefied natural gas, also can be by the low-pressure gas source air feed, as NG rock gas, coal gas and biogas etc., using scope is wide.
(4), description of drawings
Description of drawings of the present invention is as follows:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the present invention and structural representation after Carburetor is connected;
Among the figure: 1. depressurize stop valve; 2. proportions of ingredients shutoff valve; 3. housing; 4. diaphragm; 5. air cavity is crossed in voltage stabilizing; 6. counter balance pocket; 7. suction port; 8. air outlet; 9. suction valve; 10. lever; 11. valve plug; 12. cross bar; 13. adjusting bolt; 14. adjustment seat; 15. spring; 16. air inlet duct; 17. outtake tube; 18. container; 19. filtered fluid.
(5), embodiment
The invention will be further described below in conjunction with drawings and Examples:
As shown in Figure 1, the present invention includes voltage-stabilizing controller, the gas-entered passageway of this voltage-stabilizing controller is provided with depressurize stop valve 1, and outlet passageway is provided with proportions of ingredients shutoff valve 2.
Described voltage-stabilizing controller is a prior art, it includes a hollow housing 3, the diaphragm 4 that is positioned at housing 3 is separated into the counter balance pocket 6 that voltage stabilizing is crossed air cavity 5 and communicated with the external world with the inner chamber of housing 3, housing 3 is provided with voltage stabilizing and crosses suction port 7 and the air outlet 8 that air cavity 5 communicates, suction port 7 places are provided with suction valve 9, are provided with the voltage stabilizing controlling mechanism between the valve port of suction valve 9 and the diaphragm 4.
The voltage stabilizing controlling mechanism comprises and is positioned at the lever 10 that air cavity 5 is crossed in voltage stabilizing, lever 10 is hinged with housing 3, the end that lever 10 is positioned at the articulating point left side is provided with the valve plug 11 that matches with suction valve 9 valve ports, and the end that lever 10 is positioned at the articulating point right side is connected with diaphragm 4 by cross bar 12; Housing 3 is provided with pressure regulating mechanism.
Pressure regulating mechanism comprises and has the adjustment seat 14 of regulating bolt 13, and described adjustment seat 14 is positioned at that the right side and the housing 3 of articulating point is affixed, and an end of spring 15 is against on the lever 10, and the other end stretches in the adjustment seat 14 and is against and regulates on the bolt 13.
When external air source is biogas, owing to contain a large amount of carbon dioxide impurity usually in the biogas, can reduce the efficient of internal-combustion engine acting, must remove.Because of a little inlet ends at depressurize stop valve 1 insert a filtering mechanism, as shown in Figure 2, this filtering mechanism comprises a container 18 of bringing airway 16 and outtake tube 17 into, be loaded with filtered fluid 19 in the container 18, one end of air inlet duct 16 is positioned at outside the container 18, and the other end is arranged in the filtered fluid 19 of container 18; Dam 1 inlet end of one end of outtake tube 17 and decompression is connected, and the other end is arranged in the cavity of container 18.Described filtered fluid can be an aqua calcis, but or the solution of other absorbing carbon dioxide.Biogas enters container by air inlet duct, after its interior contained carbon dioxide and aqua calcis react, be absorbed and remove, purified marsh gas crosses Carburetor through outtake tube 17, depressurize stop valve 1, voltage-stabilizing controller and proportions of ingredients shutoff valve 2 again, for combustion in IC engine.
Now, further specify working principle of the present invention in conjunction with Fig. 1 and 2:
The present invention is installed between external air source and the carburetors for internal combustion engines.At first regulate depressurize stop valve 1,, make the pressure of the combustible gas of its output satisfy the inlet pressure of internal combustion engines requirement the decompression of damming of the high pressure of external air source or low-pressure gas source; By voltage-stabilizing controller the combustible gas that enters in it is carried out the voltage stabilizing adjusting again; At last by proportions of ingredients shutoff valve 1, regulate the amount of the combustible gas of voltage-stabilizing controller output, after making the combustible gas and air mixing that enters Carburetor, form the inflammable mixture that satisfies the combustion in IC engine needs, make externally stable outputting power of internal-combustion engine with certain pressure and suitable air fuel ratio.
Voltage-stabilizing controller is like this combustible gas that enters in it to be carried out the voltage stabilizing adjusting: when internal-combustion engine is not worked, spring 15 acts on the pretightening force of lever 10, the thrust that makes valve plug 11 overcome combustible gas is blocked suction valve 9 valve ports, and no combustible gas inflow in the air cavity 5 is crossed in voltage stabilizing this moment.When internal combustion engine, constantly suck fresh air from the external world, voltage stabilizing is crossed and is formed negative pressure in the air cavity 5, and diaphragm 4 moves down, and 12 pairs of levers of cross bar 10 produce a downward power, when negative pressure is elevated to certain value, this power overcomes the pretightening force of spring 15 with combustible gas together to the thrust of valve plug 11, and lever 10 is turned clockwise, and moves on the valve plug 11, suction valve 9 is opened, and the post-decompression combustible gas that dams enters voltage stabilizing and crosses air cavity 5.Rotation along with lever 10, valve plug 11 further moves up, entering voltage stabilizing in unit time crosses the amount of the combustible gas of air cavity 5 and increases, because proportions of ingredients shutoff valve 2 apertures are certain, the pressure that makes voltage stabilizing cross combustible gas in the air cavity 5 constantly raises, be that the negative pressure value that voltage stabilizing is crossed in the air cavity 5 not only reduces, when negative pressure is reduced to certain value, the pretightening force of spring 15 overcomes the power that combustible gas and diaphragm 4 act on lever 10, lever 10 is rotated counterclockwise, this moment, valve plug 11 moved down, and the aperture of suction valve 9 reduces, and the amount that is entered the combustible gas of air-inlet cavity by suction valve 9 reduces, the pressure that combustible gas in the air cavity 5 is crossed in voltage stabilizing decreases, so repeatedly, voltage-stabilizing controller will enter the pressure all-the-time stable of the combustible gas that voltage stabilizing crosses air cavity 5 in a certain range of pressure values, thereby satisfy the needs of inlet pressure of internal combustion engines and air inflow.
Claims (5)
1. medium and small internal-combustion engine fuel gas supply pressure conversion device, it is characterized in that: it includes voltage-stabilizing controller, and the gas-entered passageway of this voltage-stabilizing controller is provided with depressurize stop valve (1), and outlet passageway is provided with proportions of ingredients shutoff valve (2).
2. medium and small internal-combustion engine fuel gas supply pressure conversion device as claimed in claim 1, it is characterized in that: voltage-stabilizing controller includes a hollow housing (3), the diaphragm (4) that is positioned at housing (3) is separated into the counter balance pocket (6) that voltage stabilizing is crossed air cavity (5) and communicated with the external world with the inner chamber of housing (3), housing (3) is provided with voltage stabilizing and crosses suction port (7) and air outlet (8) that air cavity (5) communicates, suction port (7) locates to be provided with suction valve (9), is provided with the voltage stabilizing controlling mechanism between the valve port of suction valve (9) and the diaphragm (4).
3. medium and small internal-combustion engine fuel gas supply pressure conversion device as claimed in claim 2, it is characterized in that: the voltage stabilizing controlling mechanism comprises that being positioned at voltage stabilizing crosses the lever of air cavity (5) (10), lever (10) is hinged with housing (3), the end that lever (10) is positioned at the articulating point left side is provided with the valve plug (11) that matches with suction valve (9) valve port, and the end that lever (10) is positioned at the articulating point right side is connected with diaphragm (4) by cross bar (12); Housing (3) is provided with pressure regulating mechanism.
4. medium and small internal-combustion engine fuel gas supply pressure conversion device as claimed in claim 3, it is characterized in that: pressure regulating mechanism comprises the adjustment seat (14) that has adjusting bolt (13), it is affixed that described adjustment seat (14) is positioned at the right side and the housing (3) of articulating point, one end of spring (15) is against on the lever (10), and the other end stretches in the adjustment seat (14) and is against and regulates on the bolt (13).
5. as claim 1,2,3 or 4 described medium and small internal-combustion engine fuel gas supply pressure conversion devices, it is characterized in that: the inlet end of depressurize stop valve (1) is provided with filtering mechanism, described filtering mechanism comprise one bring into, the container (18) of outtake tube (16,17), be loaded with filtered fluid (19) in the container (18), one end of air inlet duct (16) is positioned at outside the container (18), and the other end is arranged in the filtered fluid (19) of container (18); Dam with the decompression inlet end of (1) of one end of outtake tube (17) is connected, and the other end is arranged in the cavity of container (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100952414A CN1959094A (en) | 2006-11-28 | 2006-11-28 | Gas supply pressure conversion device for medium and small internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100952414A CN1959094A (en) | 2006-11-28 | 2006-11-28 | Gas supply pressure conversion device for medium and small internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1959094A true CN1959094A (en) | 2007-05-09 |
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ID=38070928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100952414A Pending CN1959094A (en) | 2006-11-28 | 2006-11-28 | Gas supply pressure conversion device for medium and small internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1959094A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8726929B2 (en) | 2008-07-22 | 2014-05-20 | Honda Motor Co., Ltd | Gas engine regulator |
-
2006
- 2006-11-28 CN CNA2006100952414A patent/CN1959094A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8726929B2 (en) | 2008-07-22 | 2014-05-20 | Honda Motor Co., Ltd | Gas engine regulator |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |