CN105715411A - Anti-freezing CNG injection rail - Google Patents
Anti-freezing CNG injection rail Download PDFInfo
- Publication number
- CN105715411A CN105715411A CN201610062341.0A CN201610062341A CN105715411A CN 105715411 A CN105715411 A CN 105715411A CN 201610062341 A CN201610062341 A CN 201610062341A CN 105715411 A CN105715411 A CN 105715411A
- Authority
- CN
- China
- Prior art keywords
- groove
- electric heating
- tube
- spray
- hollow pipe
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0239—Pressure or flow regulators therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
- F02M31/125—Fuel
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Railway Tracks (AREA)
Abstract
The invention discloses an anti-freezing CNG injection rail. The anti-freezing CNG injection rail comprises an intake tube and a hollow tube, wherein a plurality of injection holes are formed in the upper end of the hollow tube; electromagnetic valves are correspondingly installed on the injection holes; a groove is formed in the inner wall of the hollow tube; the injection holes directly face the groove; a plurality of electric heating tubes are arranged in the groove side by side; guide blocks are installed at the bottoms of the electric heating tubes; guide slots matched with the guide blocks are formed in the bottom of the groove; each of the electric heating tubes comprises a tube body, an insulation material filling the tube body and an electric heating wire arranged in the tube body; the tail ends of the electric heating wires are connected with binding posts; small holes which communicate with the external part are formed in the end, far away from the intake tube, of the groove; the binding posts penetrate through the small holes to be connected with a wiring board; and a heat conduction board covers the open end of the groove. The guide blocks are installed at the lower parts of the tube bodies of the electric heating tubes and the guide blocks are matched with the guide slots, so that the placement of the tube bodies is more stable, namely, the fastening of the electric heating tubes can be realized without adding a new fixing structure, so as to achieve the aim of optimizing the internal structure of the injection rail.
Description
Technical field
The present invention relates to gas injection rail, specifically refer to can be antifreeze CNG spray rail.
Background technology
Gas injection rail is necessaries on CNG-gasoline double-fuel car, but when temperature is relatively low, low temperature makes the contraction of gas in low pressure line, forms negative pressure, make gas injection rail open not easily between combustion gas common rail and filter, affects the normal use of gas burning system；Gas injection rail is heated by the mode being adopted hydro-thermal by us so that it is can normal operation, however it is necessary that installation water route, increase pipeline and interfere, it is easy to fluid leakage occurs, increase maintenance difficulties.
Summary of the invention
It is an object of the invention to provide can be antifreeze CNG spray rail, it is ensured that combustion gas normal through, avoid fuel gas pipeline occurs liquid simultaneously.
The purpose of the present invention is achieved through the following technical solutions:
CNG that can be antifreeze sprays rail, including air inlet pipe and hollow pipe in communication, multiple spray-hole is had in hollow pipe upper end, and correspondence is provided with electromagnetic valve on described spray-hole, groove is had at described hollow pipe inwall, and described spray-hole is just to described groove, multiple electrothermal tube it has been arranged side by side in described groove, guide pad is installed bottom electrothermal tube, and the gathering sill matched with guide pad is had at bottom portion of groove, described electrothermal tube includes body, it is filled in the insulant of tubular body and is placed in the heating wire of tubular body, described heating wire end is connected to binding post, groove has, away from one end of air inlet pipe, the aperture being in communication with the outside, binding post runs through aperture and is connected with wiring plate, and on the open end of groove, it is coated with heat-conducting plate, described inside grooves and hollow tube are separated by heat-conducting plate.
When the present invention works, combustion gas is injected directly in hollow pipe by air inlet pipe, and is flowed into after in electromagnetic valve by spray-hole, accurately regulating and then guaranteeing that combustion gas is maintained at the flow output of the best through electromagnetic valve；And relatively low for the air pressure in prior art mesolow pipeline and between the spray rail and the filter that cause, the situation of negative pressure occurs, the inwall place of spray-hole is just had groove at hollow pipe by the present invention, it is heated heating up by the gas circulation region in hollow pipe, utilize the caloric value of electrothermal tube and the heat transmission of heat-conducting plate, make combustion gas in the ambient temperature entered before hollow pipe in hollow pipe relative to extraneous temperature drift, namely the pressure in hollow pipe raises, combustion gas heated intensification to a certain extent after hollow pipe is entered until combustion gas, effectively prevent the flow velocity producing negative pressure between spray rail and filter and affect combustion gas, ensure the normal circulation of combustion gas.And, adopt Electric heating compared with hydro-thermal mode, while there is liquid risk of leakage, the efficiency of heating is greatly improved, and multiple electric heating tube is placed in groove, by wiring plate, the side of groove is sealed, heat loss can be reduced, being also convenient for picking and placeing electrothermal tube, namely user can determine the number of electrothermal tube in real time according to the size of fuel gas supply amount, it is ensured that completes the stable operation to combustion gas output flow with minimum heating cost simultaneously；The body bottom of electrothermal tube is provided with guide pad simultaneously, and guide pad coordinates with gathering sill so that laying of body is more stable, namely need not increase new fixed structure and just be capable of the fastening of electrothermal tube, reaches to optimize the purpose of spray rail internal structure.
Between multiple described electrothermal tubes parallel with one another.In the lasting use procedure of electrothermal tube, the loss of electrothermal tube is relatively large, namely multiple electrothermal tubes there will be the faults such as damage or short circuit, and multiple electrothermal tubes are arranged to parallel connection by the present invention, namely when single electrothermal tube breaks down, without influence on the normal use of all the other electrothermal tubes, the output flow causing combustion gas to prevent from forming negative pressure between spray rail and filter at low ambient temperatures is not enough.
Being also equipped with aluminium bar at described tubular body, described heating wire winding is on described aluminium bar.When heating wire transships or crosses stream, it is easily caused power of heating wire decline or directly produce fusing, and the aluminium bar installed in body is wound around by heating wire, can ensure that within the regular hour heating wire works on, it is to avoid between spray rail and filter, again form the output flow deficiency of negative pressure and combustion gas.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, the present invention adopts Electric heating compared with hydro-thermal mode, while there is liquid risk of leakage, the efficiency of heating is greatly improved, and multiple electric heating tube is placed in the groove of arc, by wiring plate, the side of groove is sealed, heat loss can be reduced, be also convenient for picking and placeing electrothermal tube simultaneously, namely user can determine the number of electrothermal tube in real time according to the size of fuel gas supply amount, it is ensured that completes the stable operation to combustion gas output flow with minimum heating cost；
2, the present invention adopts Electric heating compared with hydro-thermal mode, while there is liquid risk of leakage, the efficiency of heating is greatly improved, and multiple electric heating tube is placed in the groove of arc, by wiring plate, the side of groove is sealed, heat loss can be reduced, be also convenient for picking and placeing electrothermal tube simultaneously, namely user can determine the number of electrothermal tube in real time according to the size of fuel gas supply amount, it is ensured that completes the stable operation to combustion gas output flow with minimum heating cost；
3, the present invention is when heating wire transships or crosses stream, it is easily caused power of heating wire decline or directly produce fusing, and the aluminium bar installed in body is wound around by heating wire, can ensure that within the regular hour heating wire works on, it is to avoid between spray rail and filter, again form the output flow deficiency of negative pressure and combustion gas.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is present configuration schematic diagram；
Fig. 2 is the structural representation of electrothermal tube；
Labelling and corresponding parts title in accompanying drawing:
1-air inlet pipe, 2-hollow pipe, 3-spray-hole, 4-groove, 5-heat-conducting plate, 6-electromagnetic valve, 7-electrothermal tube, 8-wiring plate, 9-binding post, 10-body, 11-insulant, 12-heating wire, 13-guide pad, 14-aluminium bar.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment and the explanation thereof of the present invention are only used for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment includes air inlet pipe 1 and hollow pipe 2 in communication, multiple spray-hole 3 is had in hollow pipe 2 upper end, and correspondence is provided with electromagnetic valve 6 on described spray-hole 3, the groove 4 that cross section is major arc is had at described hollow pipe 2 inwall, and described spray-hole 3 is just to described groove 4, multiple electrothermal tube 7 it has been arranged side by side in described groove 4, guide pad 13 is installed bottom electrothermal tube 7, and bottom groove 4, have the gathering sill matched with guide pad 13, described electrothermal tube 7 includes body 10, it is filled in the insulant 11 within body 10 and is placed in the heating wire 12 within body 10, described heating wire 12 end is connected to binding post 9, groove 4 has, away from one end of air inlet pipe 1, the aperture being in communication with the outside, binding post 9 runs through aperture and is connected with wiring plate 8, and on the open end of groove 4, it is coated with heat-conducting plate 5, heat-conducting plate 5 is by spaced-apart in internal for described groove 4 and hollow pipe 2.
During work, combustion gas is injected directly in hollow pipe 2 by air inlet pipe 1, and is flowed into after in electromagnetic valve 6 by spray-hole 3, accurately regulating and then guaranteeing that combustion gas is maintained at the flow output of the best through electromagnetic valve 6；And relatively low for the air pressure in prior art mesolow pipeline and between the spray rail and the filter that cause, the situation of negative pressure occurs, the inwall place of spray-hole 3 is just had groove 4 at hollow pipe 2 by the present embodiment, the heating that heats up is carried out by the gas circulation region in hollow pipe 2, utilize the caloric value of electrothermal tube 7 and the heat transmission of heat-conducting plate 5, make combustion gas in the ambient temperature entered before hollow pipe 2 in hollow pipe 2 relative to extraneous temperature drift, namely the pressure in hollow pipe 2 raises, combustion gas heated intensification to a certain extent after hollow pipe 2 is entered until combustion gas, effectively prevent the flow velocity producing negative pressure between spray rail and filter and affect combustion gas, ensure the normal circulation of combustion gas.
And, adopt Electric heating compared with hydro-thermal mode, while there is liquid risk of leakage, the efficiency of heating is greatly improved, and multiple electric heating tube is placed in the groove 4 of arc, by wiring plate 8, the side of groove 4 is sealed, heat loss can be reduced, being also convenient for picking and placeing electrothermal tube 7, namely user can determine the number of electrothermal tube 7 in real time according to the size of fuel gas supply amount, it is ensured that completes the stable operation to combustion gas output flow with minimum heating cost simultaneously.
Wherein, in the lasting use procedure of electrothermal tube 7, the loss of electrothermal tube 7 is relatively large, namely multiple electrothermal tubes 7 there will be the faults such as damage or short circuit, and multiple electrothermal tubes 7 are arranged to parallel connection by the present embodiment, namely, when single electrothermal tube 7 breaks down, without influence on the normal use of all the other electrothermal tubes 7, the output flow causing combustion gas to prevent from forming negative pressure between spray rail and filter at low ambient temperatures is not enough；Body 10 bottom of electrothermal tube 7 is provided with guide pad 13 simultaneously, and guide pad 13 coordinates with gathering sill so that laying of body 10 is more stable, namely need not increase new fixed structure and just be capable of the fastening of electrothermal tube 7, reaches to optimize the purpose of spray rail internal structure.
As preferably, being also equipped with aluminium bar 14 inside described body 10, described heating wire 12 is wrapped on described aluminium bar 14.When heating wire 12 transships or crosses stream, it is easily caused heating wire 12 power drop or directly produces fusing, and the aluminium bar 14 installed in body 10 is wound around by heating wire 12, can ensure that within the regular hour heating wire 12 works on, it is to avoid between spray rail and filter, again form the output flow deficiency of negative pressure and combustion gas.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect have been further described; it is it should be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (3)
1. CNG that can be antifreeze sprays rail, including air inlet pipe (1) and hollow pipe (2) in communication, multiple spray-hole (3) is had in hollow pipe (2) upper end, and in described spray-hole (3) upper correspondence, electromagnetic valve (6) is installed, it is characterized in that: have groove (4) at described hollow pipe (2) inwall, and described spray-hole (3) is just to described groove (4), multiple electrothermal tube (7) it has been arranged side by side in described groove (4), electrothermal tube (7) bottom is provided with guide pad (13), and have, in groove (4) bottom, the gathering sill matched with guide pad (13), described electrothermal tube (7) includes body (10), it is filled in the internal insulant (11) of body (10) and is placed in the heating wire (12) that body (10) is internal, described heating wire (12) end is connected to binding post (9), groove (4) has, away from one end of air inlet pipe (1), the aperture being in communication with the outside, binding post (9) runs through aperture and is connected with wiring plate (8), and on the open end of groove (4), it is coated with heat-conducting plate (5), heat-conducting plate (5) is by internal for described groove (4) and hollow pipe (2) interior spaced-apart.
2. according to claim 1 can be antifreeze CNG spray rail, it is characterised in that: parallel with one another between multiple described electrothermal tubes (7).
3. according to claim 1 can be antifreeze CNG spray rail, it is characterised in that: being also equipped with aluminium bar (14) described body (10) is internal, described heating wire (12) is wrapped on described aluminium bar (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610062341.0A CN105715411A (en) | 2016-01-29 | 2016-01-29 | Anti-freezing CNG injection rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610062341.0A CN105715411A (en) | 2016-01-29 | 2016-01-29 | Anti-freezing CNG injection rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105715411A true CN105715411A (en) | 2016-06-29 |
Family
ID=56154254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610062341.0A Pending CN105715411A (en) | 2016-01-29 | 2016-01-29 | Anti-freezing CNG injection rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105715411A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822461A (en) * | 2016-03-29 | 2016-08-03 | 成都科力夫科技有限公司 | Fuel gas injection method for dual-fuel vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0685639A2 (en) * | 1994-06-03 | 1995-12-06 | CENTRO RICERCHE FIAT Società Consortile per Azioni | Electronically controlled pressure regulator device for internal combustion engines supplied with a gaseous fuel, particularly methane |
| WO2003001045A1 (en) * | 2001-06-25 | 2003-01-03 | Emer S.R.L. | Common rail having integrated pressure regulator for gaseous fuels for motor vehicles |
| CN103835838A (en) * | 2012-11-20 | 2014-06-04 | 上海大众联合汽车改装有限公司 | Valve type anti-freezing gas spray rail suitable for vehicle gas system |
| CN203642316U (en) * | 2013-11-12 | 2014-06-11 | 成都科盛石油科技有限公司 | Heater for camping room |
| CN204572250U (en) * | 2015-04-29 | 2015-08-19 | 成都柯恩斯科技有限公司 | Valve type is anti-gradually freezes gas injection rail |
-
2016
- 2016-01-29 CN CN201610062341.0A patent/CN105715411A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0685639A2 (en) * | 1994-06-03 | 1995-12-06 | CENTRO RICERCHE FIAT Società Consortile per Azioni | Electronically controlled pressure regulator device for internal combustion engines supplied with a gaseous fuel, particularly methane |
| WO2003001045A1 (en) * | 2001-06-25 | 2003-01-03 | Emer S.R.L. | Common rail having integrated pressure regulator for gaseous fuels for motor vehicles |
| CN103835838A (en) * | 2012-11-20 | 2014-06-04 | 上海大众联合汽车改装有限公司 | Valve type anti-freezing gas spray rail suitable for vehicle gas system |
| CN203642316U (en) * | 2013-11-12 | 2014-06-11 | 成都科盛石油科技有限公司 | Heater for camping room |
| CN204572250U (en) * | 2015-04-29 | 2015-08-19 | 成都柯恩斯科技有限公司 | Valve type is anti-gradually freezes gas injection rail |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822461A (en) * | 2016-03-29 | 2016-08-03 | 成都科力夫科技有限公司 | Fuel gas injection method for dual-fuel vehicle |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160629 |
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| RJ01 | Rejection of invention patent application after publication |