CN203685430U - Protecting device for back pressure type alcohol fuel conveying system - Google Patents
Protecting device for back pressure type alcohol fuel conveying system Download PDFInfo
- Publication number
- CN203685430U CN203685430U CN201320835673.XU CN201320835673U CN203685430U CN 203685430 U CN203685430 U CN 203685430U CN 201320835673 U CN201320835673 U CN 201320835673U CN 203685430 U CN203685430 U CN 203685430U
- Authority
- CN
- China
- Prior art keywords
- fuel
- outlet end
- pressure
- valve
- pressure switch
- 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 - Lifetime
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 73
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 239000002828 fuel tank Substances 0.000 abstract 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
Images
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- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The utility model relates to a protecting device for a back pressure type alcohol fuel conveying system. The device is characterized by comprising an electronic control unit, a fuel tank, a pressure reducing valve, a high-pressure switch, a filter and a low-pressure switch, wherein the fuel tank, the pressure reducing valve, the high-pressure switch, the filter and the low-pressure switch are connected with each other in sequence through pipelines; the fuel tank is connected with the input end of the pressure reducing valve by the liquid outlet end mounted on the fuel tank through a liquid fuel conveying pipeline; a liquid outlet end electromagnetic valve is arranged at the liquid outlet end or on the fuel tank; the high-pressure switch and the low-pressure switch are respectively and electrically connected with the liquid outlet end electromagnetic valve by an overpressure signal output end and an underpressure signal output end through the electronic control unit, and the pressure of the liquid fuel in the fuel tank is controlled within the safe pressure range to be output. The protecting device is used as a protecting device for a fuel supply system of an alcohol fuel car, and plays the stable, reliable and safe protecting function on the back pressure type fuel conveying system, and the adverse effect of a pump type conveying device on the long stable working of a conveying pump is avoided.
Description
Technical field
The utility model relates to vehicle fuel transporting system, is a kind of back pressure type Aalcohols fuel transporting system protective gear specifically.
Background technique
At present, on automobile motor taking alcohols in main fuel vehicle, be generally the container being made into common steel (or plastics), under normal pressure, store alcohols, oil fuel, carry out transfer the fuel supply engine burning work by the pump assembly being equipped with in container.While conveying due to Aalcohols fuel, there is the problem of pump corrosion resistance, anti-durability etc., be difficult to meet long-time stable use of vehicle, be not easy to safeguard or change.Given this, the compressed inert that prestores in steel cylinder, utilizes compressed inert force feed substituted alcohols class A fuel A pump to carry.From aspects such as current structure, bearing capacity, fuel adding modes, traditional fuel mode of movement and safety protection device are not suitable for the conveying of Aalcohols fuel.
For coordinating the Aalcohols fuel storage device of back pressure type and the safe and stable operation of automobile Aalcohols fuel transporting system, need under current market and design space state, develop a set of feasible Aalcohols fuel transporting system protective gear.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of back pressure type Aalcohols fuel transporting system protective gear, supporting safe and reliable conveying protective gear is provided to the Aalcohols fuel transporting system of back pressure type.
Described back pressure type Aalcohols fuel transporting system protective gear, it is characterized in that: comprise ECU (Electrical Control Unit) and the fuel pot being connected successively by pipeline, reduction valve, high-voltage switch gear, filter cleaner, lower pressure switch, described fuel pot is connected with the input end of reduction valve by liquid fuel conveyance conduit by the outlet end being arranged in fuel pot, described outlet end or fuel pot are provided with outlet end solenoid valve, described high-voltage switch gear and lower pressure switch are electrically connected with outlet end solenoid valve by described ECU (Electrical Control Unit) by overvoltage and under-voltage signal output part respectively, make the pressure of the liquid fuel in fuel pot be controlled in output in safe pressure range.
Described fuel pot is loaded in automobile trunk, and described reduction valve, high-voltage switch gear, filter cleaner, lower pressure switch are installed in engine engine storehouse.
Described ECU (Electrical Control Unit) triggers output terminal by "AND" logic module and sends the signal of closing outlet end solenoid valve, makes the arbitrary trouble signal of described high-voltage switch gear and lower pressure switch all can control and close outlet end.
In described fuel pot, integrated valve is installed, described integrated valve is provided with safety valve, and described integrated valve is provided with towards the safety exhaust pipeline of car bottom, automatic deflation pressure release in the time that fuel pot pressure exceedes normal value.
The utility model is as the fuel system protective gear of methanol and alcohol powered automobile; play reliable and stable safety protection effect for the fuel delivery system of back pressure type; remove the adverse effect of pump formula feedway to transfer pump long-term stable operation from; fuel is delivered directly to engine bin; after high and low pressure detects, can send into motor and burning as power source; also take reliable safety measure in fuel pot simultaneously, ensured long-term, safety, the stable operation of Aalcohols fuel transporting system.
Brief description of the drawings
Fig. 1 is the utility model Integral connection structure schematic diagram,
Fig. 2 is tank body partial enlarged drawing.
In figure: 1-automobile trunk, 2-outlet end, 3-outlet end solenoid valve, 4-fuel pot, 5-liquid fuel conveyance conduit, 6-ECU (Electrical Control Unit), 7-reduction valve, 8-high-voltage switch gear, 9-filter cleaner, 10-lower pressure switch, 11-injection apparatus, 12-engine engine storehouse, 13-integrated valve, 14-safety valve.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated: as Fig. 1, shown in 2, described back pressure type Aalcohols fuel transporting system protective gear, comprise the fuel pot 4 connecting successively by pipeline, reduction valve 7, high-voltage switch gear 8, filter cleaner 9, lower pressure switch 10, ECU (Electrical Control Unit) 6, described fuel pot 4 is connected with the input end of reduction valve 7 by liquid fuel conveyance conduit 5 by the outlet end 2 being arranged in fuel pot, described outlet end 2 or fuel pot 4 are provided with outlet end solenoid valve 3, described high-voltage switch gear 8 and lower pressure switch 10 are electrically connected with outlet end solenoid valve 3 by described ECU (Electrical Control Unit) 6 by overvoltage and under-voltage signal output part respectively, make the pressure of the liquid fuel in fuel pot be controlled in output in safe pressure range.Described fuel pot 4 is loaded in automobile trunk 1, and described reduction valve 7, high-voltage switch gear 8, filter cleaner 9, lower pressure switch 10 are installed in engine engine storehouse 12.Protective gear described in this programme detects high-pressure by high-voltage switch gear on conveying circuit simultaneously; in the time of overpressure, automatically send overvoltage signal; detect low pressure by lower pressure switch simultaneously; in the time of underpressure, send in real time under-voltage signal, guarantee motor can normally be worked in the normal scope of pressure.Pressure anomaly signal triggers ECU (Electrical Control Unit) and sends control signal to outlet end solenoid valve after ECU (Electrical Control Unit), automatically closes in real time abnormal fuel supply, under-voltage if fuel shortage causes, needs postcombustion.Overpressure can reduce fuel pot internal pressure by the mode of inert gas in the fuel pot of releasing.
As a kind of embodiment, described ECU (Electrical Control Unit) 6 triggers output terminal by "AND" logic module and sends the signal of closing outlet end solenoid valve, makes described high-voltage switch gear 8 and the arbitrary trouble signal of lower pressure switch 10 all can control and close outlet end.
In the time that tank internal pressure is too high; also have one safety measure, integrated valve 13 is installed in described fuel pot, described integrated valve is provided with safety valve 14; described integrated valve is provided with towards the safety exhaust pipeline of car bottom, automatic deflation pressure release in the time that fuel pot pressure exceedes normal value.Fuel pot can be released too high fuel pressure automatically.Make motor can remain on work in the normal scope of fuel pressure.
Claims (4)
1. a back pressure type Aalcohols fuel transporting system protective gear, it is characterized in that: comprise ECU (Electrical Control Unit) (6) and the fuel pot being connected successively by pipeline (4), reduction valve (7), high-voltage switch gear (8), filter cleaner (9), lower pressure switch (10), described fuel pot (4) is connected with the input end of reduction valve (7) by liquid fuel conveyance conduit (5) by the outlet end (2) being arranged in fuel pot, described outlet end (2) or fuel pot (4) are provided with outlet end solenoid valve (3), described high-voltage switch gear (8) and lower pressure switch (10) are electrically connected with outlet end solenoid valve (3) by described ECU (Electrical Control Unit) (6) by overvoltage and under-voltage signal output part respectively, make the pressure of the liquid fuel in fuel pot be controlled in output in safe pressure range.
2. back pressure type Aalcohols fuel transporting system protective gear according to claim 1; it is characterized in that: described fuel pot (4) is loaded in automobile trunk (1), described reduction valve (7), high-voltage switch gear (8), filter cleaner (9), lower pressure switch (10) are installed in engine engine storehouse (12).
3. back pressure type Aalcohols fuel transporting system protective gear according to claim 1; it is characterized in that: described ECU (Electrical Control Unit) (6) triggers output terminal by "AND" logic module and sends the signal of closing outlet end solenoid valve, makes described high-voltage switch gear (8) and the arbitrary trouble signal of lower pressure switch (10) all can control and close outlet end.
4. back pressure type Aalcohols fuel transporting system protective gear according to claim 1; it is characterized in that: integrated valve (13) is installed in described fuel pot; described integrated valve is provided with safety valve (14); described integrated valve is provided with towards the safety exhaust pipeline of car bottom, automatic deflation pressure release in the time that fuel pot pressure exceedes normal value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320835673.XU CN203685430U (en) | 2013-12-18 | 2013-12-18 | Protecting device for back pressure type alcohol fuel conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320835673.XU CN203685430U (en) | 2013-12-18 | 2013-12-18 | Protecting device for back pressure type alcohol fuel conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685430U true CN203685430U (en) | 2014-07-02 |
Family
ID=51007342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320835673.XU Expired - Lifetime CN203685430U (en) | 2013-12-18 | 2013-12-18 | Protecting device for back pressure type alcohol fuel conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685430U (en) |
-
2013
- 2013-12-18 CN CN201320835673.XU patent/CN203685430U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
|
| CX01 | Expiry of patent term |