CN103967681B - A kind of alcohol engine low-temperature pre-heating device - Google Patents
A kind of alcohol engine low-temperature pre-heating device Download PDFInfo
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- CN103967681B CN103967681B CN201410212466.8A CN201410212466A CN103967681B CN 103967681 B CN103967681 B CN 103967681B CN 201410212466 A CN201410212466 A CN 201410212466A CN 103967681 B CN103967681 B CN 103967681B
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Abstract
The invention discloses a kind of alcohol engine low-temperature pre-heating device, including passing sequentially through auxiliary fuel supply-system, low temperature automatic preheating formula fuel injector and the electric-control system that tube fit connects, and the accumulator being connected with electric-control system and low temperature automatic preheating formula fuel injector respectively；Entering the Aalcohols fuel of low temperature automatic preheating formula fuel injector from auxiliary fuel supply-system, complete quantitative injection under the control of electric-control system, the Aalcohols fuel automatic preheating after injection, moment intensification becomes atomizing gas, mixes with air, transfers high-temperature gas mixture to。Alcohol engine low-temperature pre-heating device of the present invention, it is possible to the defect such as overcome in prior art that structure is complicated, the thermal efficiency is low and the feature of environmental protection is poor, with the advantage realizing simple in construction, the thermal efficiency is high and the feature of environmental protection is good。
Description
Technical field
The present invention relates to automobile technical field, in particular it relates to a kind of alcohol engine low-temperature pre-heating device。
Background technology
Adopt the alcohols alternative fuel electromotors such as ammonia from coal can produce substantial amounts of Tail Gas in cold start-up and warming-up process, these Aalcohols fuels, owing to its flash-point is high, cold start-up is more difficult, so, it is necessary to a kind of device realizes the electromotor cold start-up in cold season thus shortening the warming-up process of electromotor。
And existing technology has use other fuel such as gasoline help to start as auxiliary fuel, this mode structure complexity, technological obsolescence, the thermal efficiency are low, performance difficulty, it is impossible to noxious gas emission problem in effective solution engine cold-start difficulty and warming-up process。
In the process realizing the present invention, inventor have found that prior art at least exists structure complexity, the thermal efficiency is low and the defect such as the feature of environmental protection is poor。
Summary of the invention
It is an object of the invention to, for the problems referred to above, it is proposed to a kind of alcohol engine low-temperature pre-heating device, with the advantage realizing simple in construction, the thermal efficiency is high and the feature of environmental protection is good。
For achieving the above object, the technical solution used in the present invention is: a kind of alcohol engine low-temperature pre-heating device, including passing sequentially through auxiliary fuel supply-system, low temperature automatic preheating formula fuel injector and the electric-control system that tube fit connects, and the accumulator being connected with described electric-control system and low temperature automatic preheating formula fuel injector respectively；
The Aalcohols fuel of low temperature automatic preheating formula fuel injector is entered from described auxiliary fuel supply-system, quantitative injection is completed under the control of electric-control system, the Aalcohols fuel automatic preheating after injection, moment intensification becomes atomizing gas, mix with air, transfer high-temperature gas mixture to。
Further, described auxiliary fuel supply-system, including being sequentially connected to the Aalcohols fuel Valve EGR of described low temperature automatic preheating formula fuel injector, Aalcohols fuel canister, Aalcohols fuel case, Aalcohols fuel kinetic pump, Aalcohols fuel cleaner, Aalcohols fuel rail assembly and controlling electromagnetic valve。
Further, described auxiliary fuel supply-system, also include the Aalcohols fuel oil pressure actuator being arranged on described Aalcohols fuel rail assembly and feeding back to Aalcohols fuel case。
Further, described low temperature automatic preheating formula fuel injector, including the preheating relay being connected with described accumulator, and it is connected to the automatic preheating formula fuel injector between described control electromagnetic valve and electric-control system；Described preheating relay, is connected to the common port of described automatic preheating formula fuel injector and electric-control system。
Further, described automatic preheating formula fuel injector, including ejector, it is arranged on the electric heating assembly in described ejector exit, and is arranged on the electric-control system socket on described ejector top；Described preheating relay and electric-control system, be respectively connecting to electric-control system socket。
Further, described electric-control system, including the electronic throttle assembly, sensor cluster and the ECU ECU that are connected with described electric-control system socket successively, and the ignition coil being connected with described sensor cluster successively and spark plug；
Described sensor cluster is also connected with Aalcohols fuel rail assembly, and described electronic throttle assembly is also connected with Aalcohols fuel Valve EGR, Aalcohols fuel case, preheating relay and control electromagnetic valve respectively。
Further, described sensor cluster, including the camshaft phase being connected in turn between described electronic throttle assembly and ignition coil, cooling-water temperature sensor, TMAP sensor, crankshaft position sensor and broad domain oxygen sensor。
Further, between described cooling-water temperature sensor and ECU ECU, it is additionally provided with lower water temperature switch。
Further, described ECU ECU, including the ECU module being connected with control electromagnetic valve, preheating relay and sensor cluster respectively, the starter being connected with described ECU module respectively and electromotor, it is arranged on the starting switch between described starter and ECU module, and the display lamp being connected with described ECU module respectively and voltage sensor；
Described voltage sensor is also connected with electromotor and accumulator respectively, is additionally provided with on and off switch between described electromotor and accumulator；Described preheating relay is also connected with electromotor。
The alcohol engine low-temperature pre-heating device of various embodiments of the present invention, owing to including passing sequentially through auxiliary fuel supply-system, low temperature automatic preheating formula fuel injector and the electric-control system that tube fit connects, and the accumulator being connected with electric-control system and low temperature automatic preheating formula fuel injector respectively；Entering the Aalcohols fuel of low temperature automatic preheating formula fuel injector from auxiliary fuel supply-system, complete quantitative injection under the control of electric-control system, the Aalcohols fuel automatic preheating after injection, moment intensification becomes atomizing gas, mixes with air, transfers high-temperature gas mixture to；Can simply low-temperature pre-heating device be applied in engine fuel supply system, realize the instantaneous large supply of fuel during engine cold-starting, and quickly pulverized fuel is mixed with air, increase fuel combustion area and improve efficiency of combustion, helping electromotor to complete cold start-up；Such that it is able to overcome the defect that in prior art, structure is complicated, the thermal efficiency is low and the feature of environmental protection is poor, with the advantage realizing simple in construction, the thermal efficiency is high and the feature of environmental protection is good。
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from description, or understand by implementing the present invention。
Below by drawings and Examples, technical scheme is described in further detail。
Accompanying drawing explanation
Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, is used for together with embodiments of the present invention explaining the present invention, is not intended that limitation of the present invention。In the accompanying drawings:
Fig. 1 is the site layout project schematic diagram of alcohol engine low-temperature pre-heating device of the present invention；
Fig. 2 is the operation principle schematic diagram of alcohol engine low-temperature pre-heating device of the present invention；
Fig. 3 is the structural representation of automatic preheating formula fuel injector in alcohol engine low-temperature pre-heating device of the present invention。
In conjunction with accompanying drawing 1, in the embodiment of the present invention, accompanying drawing labelling is as follows:
1-Aalcohols fuel Valve EGR；2-Aalcohols fuel canister；3-Aalcohols fuel case；4-Aalcohols fuel kinetic pump；5-Aalcohols fuel cleaner；6-accumulator；7-Aalcohols fuel oil pressure actuator；8-Aalcohols fuel rail assembly；9-controls electromagnetic valve；10-preheating relay；11-automatic preheating formula fuel injector；12-electronic throttle assembly；13-camshaft phase；14-cooling-water temperature sensor；15-TMAP sensor；16-crankshaft position sensor；17-broad domain oxygen sensor；18-ignition coil；19-spark plug；20-ECU (ECU)。
In conjunction with accompanying drawing 2, in the embodiment of the present invention, accompanying drawing labelling is as follows:
1-starter；2-electromotor；3-on and off switch；4-voltage sensor；5-display lamp；6-preheating relay；7-accumulator；8-controls electromagnetic valve；9-cooling-water temperature sensor；10-automatic preheating formula fuel injector；11-electronic throttle assembly；12-lower water temperature switchs；13-ECU module；14-starting switch。
In conjunction with accompanying drawing 3, in the embodiment of the present invention, accompanying drawing labelling is as follows:
1-electric heating assembly；2-ejector；3-electric-control system socket。
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention。
According to embodiments of the present invention, as shown in Figure 1, Figure 2 and Figure 3, provide a kind of alcohol engine low-temperature pre-heating device, can simply low-temperature pre-heating device be applied in engine fuel supply system, realize the instantaneous large supply of fuel during engine cold-starting, and quickly pulverized fuel is mixed with air, increase fuel combustion area and improve efficiency of combustion, helping electromotor to complete cold start-up。
The alcohol engine low-temperature pre-heating device of the present embodiment, including passing sequentially through auxiliary fuel supply-system, low temperature automatic preheating formula fuel injector and the electric-control system that tube fit connects, and the accumulator (accumulator 6 in Fig. 1) being connected with electric-control system and low temperature automatic preheating formula fuel injector respectively；Entering the Aalcohols fuel of low temperature automatic preheating formula fuel injector from auxiliary fuel supply-system, complete quantitative injection under the control of electric-control system, the Aalcohols fuel automatic preheating after injection, moment intensification becomes atomizing gas, mixes with air, transfers high-temperature gas mixture to。
Wherein, above-mentioned auxiliary fuel supply-system, including the Aalcohols fuel Valve EGR (the Aalcohols fuel Valve EGR 1 in Fig. 1) being sequentially connected to low temperature automatic preheating formula fuel injector, Aalcohols fuel canister (the Aalcohols fuel canister 2 in Fig. 1), Aalcohols fuel case (the Aalcohols fuel case 3 in Fig. 1), Aalcohols fuel kinetic pump (the Aalcohols fuel kinetic pump 4 in Fig. 1), Aalcohols fuel cleaner (the Aalcohols fuel cleaner 5 in Fig. 1), Aalcohols fuel rail assembly (the Aalcohols fuel rail assembly 8 in Fig. 1) and control electromagnetic valve (the control electromagnetic valve 9 in Fig. 1), and it is arranged on Aalcohols fuel rail assembly, and feed back to the Aalcohols fuel oil pressure actuator (the Aalcohols fuel oil pressure actuator 7 in Fig. 1) of Aalcohols fuel case。
Above-mentioned low temperature automatic preheating formula fuel injector, including the preheating relay being connected with accumulator, and it is connected to the automatic preheating formula fuel injector (the automatic preheating formula fuel injector 11 in Fig. 2, the automatic preheating formula fuel injector 10 in Fig. 2) controlled between electromagnetic valve and electric-control system；Preheating relay, is connected to the common port of automatic preheating formula fuel injector and electric-control system。Automatic preheating formula fuel injector, including ejector (ejector 2 in Fig. 3), it is arranged on the electric heating assembly (electric heating assembly 1 in Fig. 3) in ejector exit, and is arranged on the electric-control system socket (the electric-control system socket 3 in Fig. 3) on ejector top；Preheating relay and electric-control system, be respectively connecting to electric-control system socket。
Above-mentioned electric-control system, including the electronic throttle assembly (the electronic throttle assembly 12 in Fig. 1, the electronic throttle assembly 11 in Fig. 2), sensor cluster and the ECU ECU (ECU 20 in Fig. 1) that are connected with electric-control system socket successively, and the ignition coil being connected with sensor cluster successively (ignition coil 18 in Fig. 1) and spark plug (spark plug 19 in Fig. 1)；Sensor cluster is also connected with Aalcohols fuel rail assembly, and electronic throttle assembly is also connected with Aalcohols fuel Valve EGR, Aalcohols fuel case, preheating relay and control electromagnetic valve respectively。Sensor cluster, including the camshaft phase (the camshaft phase 13 in Fig. 1) being connected in turn between electronic throttle assembly and ignition coil, cooling-water temperature sensor (the cooling-water temperature sensor 14 in Fig. 1, cooling-water temperature sensor 9 in Fig. 2), TMAP sensor (the TMAP sensor 15 in Fig. 1), crankshaft position sensor (crankshaft position sensor 16 in Fig. 1) and broad domain oxygen sensor (broad domain oxygen sensor 17 in Fig. 1), between cooling-water temperature sensor and ECU ECU, it is additionally provided with lower water temperature switch (the lower water temperature switch 12 in Fig. 2)。
Above-mentioned ECU ECU, including respectively with control electromagnetic valve (the control electromagnetic valve 9 in Fig. 1, control electromagnetic valve 8 in Fig. 2), preheating relay (the preheating relay 10 in Fig. 1, preheating relay 6 in Fig. 2) and sensor cluster connect ECU module (the ECU module 13 in Fig. 2), the starter (starter 1 in Fig. 2) being connected with ECU module respectively and electromotor (electromotor 2 in Fig. 2), it is arranged on the starting switch (starting switch 14 in Fig. 2) between starter and ECU module, and the display lamp being connected with ECU module respectively (display lamp 5 in Fig. 2) and voltage sensor (voltage sensor 4 in Fig. 2)；Voltage sensor is also connected with electromotor and accumulator (accumulator 6 in Fig. 1, the accumulator 7 in Fig. 2) respectively, is additionally provided with on and off switch (on and off switch 3 in Fig. 2) between electromotor and accumulator；Preheating relay is also connected with electromotor。
The alcohol engine low-temperature pre-heating device of above-described embodiment, is made up of auxiliary fuel supply-system and low temperature automatic preheating formula fuel injector (referring to Fig. 1) and electric-control system。First, auxiliary fuel supply-system is made up of fuel conduit, control electromagnetic valve。Aalcohols fuel, from main fuel feed system, enters low temperature automatic preheating formula fuel injector then through controlling electromagnetism valve oil。Low temperature automatic preheating formula fuel injector is by electric heating assembly, and ejector forms。The Aalcohols fuel entering low temperature automatic preheating formula fuel injector completes quantitative injection under the control of electric-control system, and the moment under the help of electric heating assembly of the Aalcohols fuel after injection heats up and becomes atomizing gas, mixes with air, transfers high-temperature gas mixture to。Ejector is positioned at center, low temperature automatic preheating formula fuel injector end, and it is peripheral that electric heating assembly is then distributed in low temperature automatic preheating formula fuel injector in the form of a ring。During work, fuel is directly sprayed to electric heating assembly by ejector。This electric heating assembly is also by electric control system controls。Electric-control system is made up of cooling-water temperature sensor (in air inlet pipe), ECU module, warm-up control switch, display lamp and preheating relay etc.。This low-temperature pre-heating device installation site needs to be arranged on former electromotor, near main fuel feed system pipeline。Wherein low temperature automatic preheating formula fuel injector is arranged in air inlet pipeline, after being arranged in before air throttle。
When electromotor needs work, first on and off switch is connected, and warm-up control switch is opened, and display lamp is bright, now cooling-water temperature sensor and voltage sensor derived signals respectively, and they are by whether decision preheating device starts, and look at following 3 kinds of situations:
(1), when cooling-water temperature sensor temperature sensor is higher than design temperature, preheating device does not work, and display lamp goes out；
(2) voltage sensor detection battery voltage value, when voltage drop is low to moderate starter startup minimum voltage, preheating device does not also start, and display lamp goes out。
(3) when cooling-water temperature sensor temperature sensor is lower than design temperature, and battery voltage higher than demand voltage value time low temperature automatic preheating formula fuel injector electric heating assembly be operated, the electromagnetic valve that controls in auxiliary fuel supply-system sprays suitable Aalcohols fuel under ECU module controls, represent that whole preheating procedure completes, complete rear indicator light and go out。Now connecting engine start switch, starter operates, and preheating also begins to, if ECU module does not obtain generator signal afterwards, preheating device is waited to quit work。If after obtaining generator signal, system enters the post-heating stage (this stage low temperature automatic preheating formula fuel injector, electromagnetic valve, display lamp are energized), and the post-heating time is determined by cooling-water temperature sensor。
In sum, the alcohol engine low-temperature pre-heating device of the various embodiments described above of the present invention, at least can reach to provide the benefit that: noxious gas emission problem in effective solution alcohol engine cold start-up difficulty and warming-up process。This alcohol engine low-temperature pre-heating device to debug use, ordinary maintenance etc. all more convenient, it is possible to achieve produce in enormous quantities and use。
Last it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention, although the present invention being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature carries out equivalent replacement。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 (7)
1. an alcohol engine low-temperature pre-heating device, it is characterized in that, including passing sequentially through auxiliary fuel supply-system, low temperature automatic preheating formula fuel injector and the electric-control system that tube fit connects, and the accumulator being connected with described electric-control system and low temperature automatic preheating formula fuel injector respectively；
The Aalcohols fuel of low temperature automatic preheating formula fuel injector is entered from described auxiliary fuel supply-system, quantitative injection is completed under the control of electric-control system, the Aalcohols fuel automatic preheating after injection, moment intensification becomes atomizing gas, mix with air, transfer high-temperature gas mixture to；
Described auxiliary fuel supply-system, including being sequentially connected to the Aalcohols fuel Valve EGR of described low temperature automatic preheating formula fuel injector, Aalcohols fuel canister, Aalcohols fuel case, Aalcohols fuel kinetic pump, Aalcohols fuel cleaner, Aalcohols fuel rail assembly and controlling electromagnetic valve；
Described auxiliary fuel supply-system, also includes the Aalcohols fuel oil pressure actuator being arranged on described Aalcohols fuel rail assembly and feeding back to Aalcohols fuel case；
When electromotor needs work, first on and off switch is connected, and warm-up control switch is opened, and display lamp is bright, and, it is operated based on following three kinds of situations:
(1), when cooling-water temperature sensor temperature sensor is higher than design temperature, preheating device does not work, and display lamp goes out；
(2) voltage sensor detection battery voltage value, when voltage drop is low to moderate starter startup minimum voltage, preheating device does not also start, and display lamp goes out；
(3) when cooling-water temperature sensor temperature sensor is lower than design temperature, and battery voltage higher than demand voltage value time low temperature automatic preheating formula fuel injector electric heating assembly be operated, the electromagnetic valve that controls in auxiliary fuel supply-system sprays suitable Aalcohols fuel under ECU module controls, represent that whole preheating procedure completes, complete rear indicator light and go out；Now connecting engine start switch, starter operates, and preheating also begins to, if ECU module does not obtain generator signal afterwards, preheating device is waited to quit work；If after obtaining generator signal, system enters post-heating stage and low temperature automatic preheating formula fuel injector, electromagnetic valve, display lamp energising, and the post-heating time is determined by cooling-water temperature sensor；
This alcohol engine low-temperature pre-heating device, is made up of auxiliary fuel supply-system and low temperature automatic preheating formula fuel injector and electric-control system；First, auxiliary fuel supply-system is made up of fuel conduit, control electromagnetic valve；Aalcohols fuel, from main fuel feed system, enters low temperature automatic preheating formula fuel injector then through controlling electromagnetism valve oil；Low temperature automatic preheating formula fuel injector is by electric heating assembly, and ejector forms；The Aalcohols fuel entering low temperature automatic preheating formula fuel injector completes quantitative injection under the control of electric-control system, and the moment under the help of electric heating assembly of the Aalcohols fuel after injection heats up and becomes atomizing gas, mixes with air, transfers high-temperature gas mixture to；Ejector is positioned at center, low temperature automatic preheating formula fuel injector end, and it is peripheral that electric heating assembly is then distributed in low temperature automatic preheating formula fuel injector in the form of a ring；
During work, fuel is directly sprayed to electric heating assembly by ejector；This electric heating assembly is also by electric control system controls；Electric-control system by cooling-water temperature sensor and air inlet pipe, ECU module, warm-up control switch, display lamp and preheating relay form；This low-temperature pre-heating device installation site needs to be arranged on former electromotor, near main fuel feed system pipeline；Wherein low temperature automatic preheating formula fuel injector is arranged in air inlet pipeline, after being arranged in before air throttle。
2. alcohol engine low-temperature pre-heating device according to claim 1, it is characterized in that, described low temperature automatic preheating formula fuel injector, including the preheating relay being connected with described accumulator, and is connected to the automatic preheating formula fuel injector between described control electromagnetic valve and electric-control system；Described preheating relay, is connected to the common port of described automatic preheating formula fuel injector and electric-control system。
3. alcohol engine low-temperature pre-heating device according to claim 2, it is characterized in that, described automatic preheating formula fuel injector, including ejector, it is arranged on the electric heating assembly in described ejector exit, and is arranged on the electric-control system socket on described ejector top；Described preheating relay and electric-control system, be respectively connecting to electric-control system socket。
4. alcohol engine low-temperature pre-heating device according to claim 3, it is characterized in that, described electric-control system, including the electronic throttle assembly, sensor cluster and the ECU ECU that are connected with described electric-control system socket successively, and the ignition coil being connected with described sensor cluster successively and spark plug；
Described sensor cluster is also connected with Aalcohols fuel rail assembly, and described electronic throttle assembly is also connected with Aalcohols fuel Valve EGR, Aalcohols fuel case, preheating relay and control electromagnetic valve respectively。
5. alcohol engine low-temperature pre-heating device according to claim 4, it is characterized in that, described sensor cluster, including the camshaft phase being connected in turn between described electronic throttle assembly and ignition coil, cooling-water temperature sensor, TMAP sensor, crankshaft position sensor and broad domain oxygen sensor。
6. alcohol engine low-temperature pre-heating device according to claim 5, it is characterised in that between described cooling-water temperature sensor and ECU ECU, is additionally provided with lower water temperature switch。
7. alcohol engine low-temperature pre-heating device according to claim 4, it is characterized in that, described ECU ECU, including the ECU module being connected with control electromagnetic valve, preheating relay and sensor cluster respectively, the starter being connected with described ECU module respectively and electromotor, it is arranged on the starting switch between described starter and ECU module, and the display lamp being connected with described ECU module respectively and voltage sensor；
Described voltage sensor is also connected with electromotor and accumulator respectively, is additionally provided with on and off switch between described electromotor and accumulator；Described preheating relay is also connected with electromotor。
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| CN201410212466.8A CN103967681B (en) | 2014-05-20 | 2014-05-20 | A kind of alcohol engine low-temperature pre-heating device |
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| CN201410212466.8A CN103967681B (en) | 2014-05-20 | 2014-05-20 | A kind of alcohol engine low-temperature pre-heating device |
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| CN106762323B (en) * | 2016-11-28 | 2018-12-28 | 浙江吉利控股集团有限公司 | The activation system and starting method of alcohol engine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101375049A (en) * | 2005-09-12 | 2009-02-25 | 菲亚特汽车股份有限公司-机械分公司 | Cold start up auxiliary system for alcohol and flex engines with air-inlet and alcohol warm up |
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| JPH05149223A (en) * | 1991-11-26 | 1993-06-15 | Fuji Heavy Ind Ltd | Start control method of ffv engine and device thereof |
| US7237539B2 (en) * | 2003-10-30 | 2007-07-03 | Philip Morris Usa Inc. | Control method and apparatus for use in an alcohol fueled internal combustion engine |
| US7798131B2 (en) * | 2007-03-16 | 2010-09-21 | Continental Automotive Systems Us, Inc. | Automotive modular inductive heated injector and system |
| BRPI0705394B1 (en) * | 2007-11-08 | 2018-11-13 | Delphi Tech Inc | cold-start method for alcohol-fueled engines and cold-start system for alcohol-fueled engines |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101375049A (en) * | 2005-09-12 | 2009-02-25 | 菲亚特汽车股份有限公司-机械分公司 | Cold start up auxiliary system for alcohol and flex engines with air-inlet and alcohol warm up |
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