CN202851231U - Cold start preheating device for methanol fuel automobile - Google Patents
Cold start preheating device for methanol fuel automobile Download PDFInfo
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- CN202851231U CN202851231U CN 201220547784 CN201220547784U CN202851231U CN 202851231 U CN202851231 U CN 202851231U CN 201220547784 CN201220547784 CN 201220547784 CN 201220547784 U CN201220547784 U CN 201220547784U CN 202851231 U CN202851231 U CN 202851231U
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- effect electric
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Abstract
The utility model discloses a cold start preheating device for a methanol fuel automobile. The device comprises an electric control unit, an on-off starting annunciator, an electromagnetic relay, a positive temperature effect electric heater and a water temperature sensor. The positive temperature effect electric heater is arranged on an air inlet main pipe behind an engine throttle and electrically connected with the electromagnetic relay; and the water temperature sensor is installed on a radiator, and the electromagnetic relay, the positive temperature effect electric heater and the water temperature sensor are electrically connected with the electric control unit respectively. According to the cold start preheating device, the problem of the cold start performance of methanol fuels at a high proportion ranging from M85 to M100 can be solved, technical requirements for the usage of the methanol fuels at a high proportion can be met completely, cold start performances of vehicle start, engine preheating warming and low-speed conditions are improved, and high emission and high fuel consumption for preheating and warming the engine within 200S are reduced.
Description
Technical field
The utility model belongs to methanol fuel automobile priming technique field, is specifically related to a kind of automatically controlled Preheating unit for methanol fuel automobile cold start-up in winter.
Background technique
China economic society is fast-developing, and the demand of the energy is increased substantially, and the factor such as non-renewable of fossil energy is having a strong impact on energy strategy and the energy security of China.
Along with the hurried increase of vehicle guaranteeding organic quantity, exhaust emissions causes pollution of atmosphere, environmental deterioration, and economic sustainable development and people healthy is subject to very big impact.From sustainable development and national energy strategic concerns, energy-saving and emission-reduction, low-carbon environment-friendly problem need to be resolved hurrily, and development and use are cleaned, renewable energy sources is imperative.
In many gasoline substitute products, methyl alcohol belongs to clean reproducible energy.Physicochemical property, the combustion characteristic of methyl alcohol are suitable for vehicle fuel, and raw material sources are extensive, and cost of production is low, are the desirable alternative fuel of gasoline.
But because the methyl alcohol flash-point is low, the latent heat of vaporization is high, is 1109kJ/kg, is 3.7 times of gasoline vaporising latent heat (310kJ/kg), and vapor tension is 0.32bar only, less than half of vapour pressure of gasoline (0.66bar); So in the lower situation of external temperature, use methanol fuel, especially during the methanol fuel of the above ratio of M85, difficult vaporization is difficult for being lighted by igniter in cylinder, causes the cold start-up in winter of vehicle difficult.
The measure that solves at present methanol fuel automobile cold start-up in winter mainly is to add to mix a certain proportion of soluble combustion improver such as dimethyl ether, isopentane etc., to improve the fire behaviour of inflammable mixture, perhaps increase attached fuel tank and cold start fuel injector device, form two oil, double pump, two spray system.
The structure and the working mechanism that increase attached fuel tank and cold start fuel injector device are: install the less petrol tank of capacity additional at car trunk, set up gasoline oil supply pipeline, petrol pump, gasoline suction booster, gasoline ejector, at gasoline pipeline and methanol fuel pipeline intersection the threeway transducer is set.Start first the Fuel Petroleum ejecting system during winter starting automobile and start vehicle, close the Fuel Petroleum ejecting system by transducer after warming-up, the intensification, switch to the methanol fuel ejecting system, work enters normality.The method need to change vehicle structure, and system architecture is complicated, and it is large to apply difficulty.
Summary of the invention
The purpose of this utility model provides methyl alcohol fuel for cold starting car Preheating unit a kind of simple in structure, easy to use, so that air and inflammable mixture in the air inlet supervisor are carried out auxiliary heating.
Methyl alcohol fuel for cold starting car Preheating unit of the present utility model comprises ECU (Electrical Control Unit), switch enable signal device, electromagnetic relay, positive temperature effect electric heating apparatus and cooling-water temperature sensor, described positive temperature effect electric heating apparatus is installed on the engine air throttle intake manifold afterwards, is electrically connected with electromagnetic relay; Described cooling-water temperature sensor is installed on the radiator, and described electromagnetic relay, switch enable signal device and cooling-water temperature sensor are electrically connected with ECU (Electrical Control Unit) respectively.
Preferably, described positive temperature effect electric heating apparatus is selected operating voltage 12V, the PTC electric heating apparatus of power 230W.
Described positive temperature effect electric heating apparatus is installed between closure and the intake manifold, also can be installed in according to vehicle the joint of split intake manifold, or intake manifold and engine cylinder cover joint, according to setting temperature, intake temperature is automatically adjusted.Be flow and the pressure that does not affect air inlet, described positive temperature effect electric heating apparatus is cellular, and diameter is less than the intake manifold, and both sides can make the part air-flow pass through.Power line then enters from a side joint of heater rigid metal shell, and the joint installs insulation spacer additional, and heater arranges anti-short-circuit grounding wire.
Preferably, described cooling-water temperature sensor is installed in the water inlet position of engine radiator.
Described switch enable signal device (STA), electromagnetic relay (final controlling element) and ECU (Electrical Control Unit) (ECU) form the automatical control system of cold start preheating device jointly.After automobile power source is connected, switch enable signal device (STA) passes to ECU (Electrical Control Unit) (ECU) with power on signal, ECU receives signal and sends instruction to electromagnetic relay (final controlling element), connect positive temperature effect electric heating apparatus (PTC) power supply, PTC rises to temperature the temperature range of regulation in 10s, the air that enters intake manifold or intake manifold is heated, improve atomizing and the gasification of fuel oil, form the heating inflammable mixture.Methanol fuel steam/air equivalent proportion reaches the minimum inflammability limit value of methyl alcohol more than 0.63, and the methanol steam mole fraction reaches more than 0.06, meets the fire extend of charge temperature in the cylinder, and vehicle is realized cold start-up.When engine warm-up, coolant water temperature reach 60 ℃, ECU is according to the water temperature information of cooling-water temperature sensor feedback, sends to electromagnetic relay (final controlling element) and closes the instruction of PTC power supply, and the PTC outage quits work, cold start preheating device is finished the startup warm, and the vehicle master control system is with normality work.
Methyl alcohol fuel for cold starting car Preheating unit of the present utility model can make the M85 methanol fuel automobile normally start (methanol fuel steam/air equivalent ratio can reach more than 0.98) under-25 ℃ of ambient temperature states, and does not adopt the M85 methanol fuel automobile of the utility model device to start under-12 ℃ of ambient temperature states.
In addition, methyl alcohol fuel for cold starting car Preheating unit of the present utility model can make the M100 methanol fuel automobile-22 ℃ (PTC be installed in closure after on the intake manifold, between the methanol fuel steam/air equivalent ratio 0.69～0.82) and near the ambient temperature state of-25 ℃ (PTC is installed in the intake manifold intake valve, between the methanol fuel steam/air equivalent ratio 0.89～0.96) under normally start.
Methyl alcohol fuel for cold starting car Preheating unit of the present utility model has improved the thermal efficiency of fuel, has improved the cold drive performance of vehicle launch, preheating warming-up, low speed operating mode, has reduced maximum discharge, high oil consumption in the preheating warming-up 200S.
Methyl alcohol fuel for cold starting car Preheating unit of the present utility model is simple in structure, with low cost, easy to operate, safe and reliable, can overcome the large shortcoming of high-proportion methanol carburretion latent heat, significantly improve the cold starting performance of high-proportion methanol fuel, can effectively solve the cold starting performance of M85～M100 high-proportion methanol fuel, can satisfy the technical requirements that high-proportion methanol fuel uses fully, implement with the Industry Promotion that advances M85～M100 high-proportion methanol fuel.
Description of drawings
Fig. 1 is the structural representation of the utility model methanol fuel cold start preheating device.
Embodiment
The structure of methanol fuel cold start preheating device for being installed in the auxiliary heating system on the motor car engine 9, is made of automatical control system, positive temperature effect electric heating apparatus 4 and cooling-water temperature sensor 5 as shown in Figure 1.Automatical control system wherein is comprised of switch enable signal device 12, electromagnetic relay 11 and ECU (Electrical Control Unit) 10, provides power supply by automobile storage battery.
Positive temperature effect electric heating apparatus 4 is installed in motor 9 closures 2 intake manifolds 3 afterwards, and diameter is electrically connected with electromagnetic relay 11 less than intake manifold 3, electromagnetic relay 11 and then connection ECU (Electrical Control Unit) 10.
Cooling-water temperature sensor 5 is installed on the water inlet position of radiator 6 of motor 9, is electrically connected with ECU (Electrical Control Unit) 10.Simultaneously, switch enable signal device 12 also is electrically connected with ECU (Electrical Control Unit) 10.
Connect automobile power source, switch enable signal device 12 is connected positive temperature effect electric heating apparatus 4 power supplys by ECU (Electrical Control Unit) 10 control electromagnetic relays 11, the air that enters intake manifold 2 by air-strainer 1 and closure 2 is heated, hot air enters intake manifold 7, mix with the fuel oil of oil sprayer 8 ejections, improve atomizing and the gasification of fuel oil, form the heating inflammable mixture, vehicle is realized cold start-up.Cooling-water temperature sensor 5 detects engine warm-up, when coolant water temperature reaches 60 ℃, with 4 outages of positive temperature effect electric heating apparatus, finishes the startup warm by ECU (Electrical Control Unit) 10 control electromagnetic relays 11, and the vehicle master control system is with normality work.
Claims (6)
1. methyl alcohol fuel for cold starting car Preheating unit, it is characterized in that comprising ECU (Electrical Control Unit), switch enable signal device, electromagnetic relay, positive temperature effect electric heating apparatus and cooling-water temperature sensor, described positive temperature effect electric heating apparatus is installed on the engine air throttle intake manifold afterwards, is electrically connected with electromagnetic relay; Described cooling-water temperature sensor is installed on the radiator, and described electromagnetic relay, switch enable signal device and cooling-water temperature sensor are electrically connected with ECU (Electrical Control Unit) respectively.
2. methyl alcohol fuel for cold starting car Preheating unit according to claim 1 is characterized in that the operating voltage 12V of described positive temperature effect electric heating apparatus, power 230W.
3. methyl alcohol fuel for cold starting car Preheating unit according to claim 1 is characterized in that described positive temperature effect electric heating apparatus is installed between closure and the intake manifold.
4. methyl alcohol fuel for cold starting car Preheating unit according to claim 1 is characterized in that described positive temperature effect electric heating apparatus is installed in split intake manifold joint.
5. methyl alcohol fuel for cold starting car Preheating unit according to claim 1 is characterized in that described positive temperature effect electric heating apparatus is installed in intake manifold and engine cylinder cover joint.
6. methyl alcohol fuel for cold starting car Preheating unit according to claim 1 is characterized in that described cooling-water temperature sensor is installed in the water inlet of engine radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220547784 CN202851231U (en) | 2012-10-24 | 2012-10-24 | Cold start preheating device for methanol fuel automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220547784 CN202851231U (en) | 2012-10-24 | 2012-10-24 | Cold start preheating device for methanol fuel automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851231U true CN202851231U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220547784 Expired - Fee Related CN202851231U (en) | 2012-10-24 | 2012-10-24 | Cold start preheating device for methanol fuel automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851231U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889159A (en) * | 2012-10-24 | 2013-01-23 | 山西鼎乔科技有限公司 | Cold-start preheating device for methanol fuel automobile |
| CN114109689A (en) * | 2021-12-14 | 2022-03-01 | 浙江吉利控股集团有限公司 | Methanol engine cold start control method and system and vehicle |
-
2012
- 2012-10-24 CN CN 201220547784 patent/CN202851231U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889159A (en) * | 2012-10-24 | 2013-01-23 | 山西鼎乔科技有限公司 | Cold-start preheating device for methanol fuel automobile |
| CN114109689A (en) * | 2021-12-14 | 2022-03-01 | 浙江吉利控股集团有限公司 | Methanol engine cold start control method and system and vehicle |
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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: 20130403 Termination date: 20151024 |
|
| EXPY | Termination of patent right or utility model |