CN2911208Y - I.C.engine of realizing double jetting of alcohol fuel and fuel - Google Patents
I.C.engine of realizing double jetting of alcohol fuel and fuel Download PDFInfo
- Publication number
- CN2911208Y CN2911208Y CN 200520066444 CN200520066444U CN2911208Y CN 2911208 Y CN2911208 Y CN 2911208Y CN 200520066444 CN200520066444 CN 200520066444 CN 200520066444 U CN200520066444 U CN 200520066444U CN 2911208 Y CN2911208 Y CN 2911208Y
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- fuel
- alcohol liquid
- liquid fuel
- fuel injection
- solenoid valve
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Abstract
An internal combustion engine realizing double-fuel injection of both alcohol fuels and oil fuel, which consists of a at least one-jar engine, an oil fuel injection device ,a status detecting device and a ECU, can be characterized by the alcohol fuels injection device. The nozzle device is on the intake manifold of the engine, and between throttle and oil fuel nozzle. The utility model makes a car easily accelerated and driven with its combination of two injection devices, by means of timely controlling the proportion of alcohol fuels and oil fuel according to the running condition. When the car is started and accelerated, ethanol is reduced. And when the load is basically steady, ethanol is increased to make sure of the output power and motility of the engine.
Description
Technical field
The utility model relates to a kind of internal-combustion engine, particularly relates to a kind of internal-combustion engine arrangement that uses dual fuel injection.
Background technique
Now nearly all fuel vehicle all is that to adopt with the oil be that the gasoline or the diesel oil of raw material acts as a fuel, and it is well-known, ubiquity the petroleum resources worsening shortages in the world, the problem of the high and environmental requirement increasingly stringent of oil price, the China that particularly belongs to oil-poor country is particularly outstanding to this problem.Adopt the fuel except that oil to become the problem that the whole society all pays close attention to jointly as the fuel of automobile or fuel additive for this reason, this wherein adopts volatility good, the octane value height, can significantly reduce the methyl alcohol of the discharging of pollutant, alcohol liquid fuels such as ethanol just become first-selected automobile auxiliary fuel, that a certain proportion of methyl alcohol or ethanol and gasoline or diesel oil are mixed and made into the mode of miscella is the most common and ripe to adopt in present technology, but this technology is because the alcohols miscella that mixes is poorer than pure gasoline aspect startability and power character, limited alcohol liquid fuel shared ratio in mixed oil, through the theory analysis of science and a large amount of facts have proved, the shared ratio of ethanol can only be lower than 10% startability and the power character that just can not influence automobile under the condition that does not change existing Structure of Internal-Combustion Engine, therefore the method for this mixed oil can not fundamentally solve the problem that substitutes gasoline or diesel oil with the alcohol liquid fuel of maximum ratio, at the problems referred to above, Chinese patent application CN1470752 discloses a kind of name and has been called " pure device and ejection control method are sprayed in the air inlet of diesel engine ", and it is mainly by the engine load that is arranged on the nozzle in the engine air inlet tube or is arranged on the nozzle in each cylinder intake duct and drives the ECU (Electrical Control Unit) of nozzle switch and transmit information to ECU (Electrical Control Unit), rotating speed, the sensor of camshaft location and cooling water temperature is formed.Its ejection control method is according to Engine torque, rotating speed, cooling water temperature, camshaft location, at regular time and quantity to engine spray alcohol fuel.Its advantage is high load in motor (particulate and NOx discharging all very high) operating mode, replaces diesel oil with the pure fuel of part, and carbon smoke exhaust can reduce by 40% during than pure diesel combustion, and NOx can reduce more than 30% simultaneously.Under the prerequisite that does not influence its power performance, its emission performance is greatly improved.But the greatest problem that this device exists is that it can only be applied on the diesel-oil vehicle with Carburetor, and can not satisfying the emission standard of present stage at all, the Carburetor motor car engine is eliminated substantially, the mixed organization of this device is very complicated simultaneously, be not suitable for carrying out commercialization, the mass production that can not be applied to automobile but.
Summary of the invention
The purpose of this utility model is the existence at the problems referred to above, provide a kind of and can control output power and the power character of the injection proportion of oils and alcohol liquid fuel in good time according to the different operating conditions of automobile with abundant assurance motor, thereby guarantee that automobile has good acceleration and driving, and increase work efficiency greatly and cut down the consumption of energy and reach Europe III emission standard, simple in structure, the internal-combustion engine arrangement that realize to be easy to Aalcohols fuel and fuel oil dual fuel injection.
The purpose of this utility model is achieved through the following technical solutions:
A kind of internal-combustion engine arrangement of realizing alcohol liquid fuel and fuel oil dual fuel injection comprises:
One has the motor of at least one cylinder, and the cylinder of this motor is provided with one and has the intake manifold of air throttle;
One fuel injection apparatus, described fuel injection apparatus is made up of the fuel tank that connects in regular turn, the fuel pump with a solenoid valve, the fuel nozzle with a solenoid valve;
One condition checkout gear is made up of a plurality of sensors of motors such as the suction pressure that is used for the difference detection of engine, intake temperature, air throttle enable possition, crank position, coolant temperature, tail gas oxygen content operation working state signal;
One electronic control unit (ECU) is used for moving other operation working condition and fault diagnosis that working state signal is controlled the fuel injection moment, fuel injection amount and the motor of fuel injection apparatus according to detected motor;
Be characterized in also including:
One alcohol liquid fuel injection apparatus, this alcohol liquid fuel injection apparatus is made up of the alcohol liquid fuel container that connects in regular turn, the alcohol liquid fuel pump with a solenoid valve, the alcohol liquid fuel nozzle with a solenoid valve, wherein the solenoid valve of the solenoid valve of alcohol liquid fuel pump and alcohol liquid fuel nozzle is controlled by electronic control unit (ECU) respectively, and the spray nozzle device of described alcohol liquid fuel is on the intake manifold of motor and between air throttle and fuel nozzle.
The utility model is owing to adopt according to the different operating conditions of automobile and in conjunction with two and overlap the method that injection apparatus is independently controlled the injection proportion of fuel oil and alcohol liquid fuel in good time, when automobile starting and acceleration, reduce proportion of ethanol, under the basicly stable operating conditions of load, increase proportion of ethanol, because the runnability of automobile reality is that startup and time for acceleration are extremely short, therefore internal-combustion engine can be worked under ethanol vast scale state in the overwhelming majority time, wherein used the usage ratio of proof ethanol can reach 40% to 60%.Thereby guarantee effectively to reduce the use of non-renewable energy resources-oil, increase the use of renewable energy sources-ethanol, both can reduce the dependence of China, guarantee the effective way of energy security Imported oil; Can promote agricultural development again, chance creates more jobs; And can guarantee the output power and the power character of motor relatively, thus guarantee that automobile has good acceleration and driving, and make that by a large amount of uses of ethanol the discharge of poisonous waste amount is few, make it the discharge of poisonous waste amount and can reach EUROIII Emission Standard; And owing to be individual injection, spray constantly by accurately controlling the different of two kinds of fuel at same injection cycle, can improve blast and flame distribution state in the cylinder, increase work efficiency the reduction consumption greatly; Simultaneously, only need on the intake manifold of former motor, install additional an ethanol nozzle, parts production or transform simple for whole engine structure.
Describe implementation method of the present utility model in detail below in conjunction with accompanying drawing:
Description of drawings
Fig. 1 is a composition structural representation of the present utility model;
Fig. 2 is the composition frame chart of electronic control unit of the present utility model;
Fig. 3 is an implementation method flow chart of the present utility model.
Embodiment
As shown in Figures 1 and 2, a kind of internal-combustion engine arrangement of realizing alcohol liquid fuel and fuel oil dual fuel injection described in the utility model comprises:
One has the motor 1 of at least one cylinder 11, and the cylinder 11 of this motor 1 is provided with one and has the intake manifold 13 of air throttle 12;
One fuel injection apparatus 2, described fuel injection apparatus 2 is made up of the fuel tank 21 that connects in regular turn, the fuel pump 22 with a solenoid valve, the fuel nozzle 23 with a solenoid valve;
One condition checkout gear 3 is made up of a plurality of sensors of motors such as the suction pressure 31 that is used for difference detection of engine 1, intake temperature 32, air throttle enable possition 33, crank position 34, coolant temperature 35, tail gas oxygen content 36 1 operation working state signal;
One electronic control unit (ECU) 4 is used for moving other operation working condition and fault diagnosis that working state signal is controlled the fuel injection moment, fuel injection amount and the motor of fuel injection apparatus according to detected motor 1;
Be characterized in also including:
One alcohol liquid fuel injection apparatus 5, this alcohol liquid fuel injection apparatus 5 is made up of the alcohol liquid fuel container 51 that connects in regular turn, the alcohol liquid fuel pump 52 with a solenoid valve, the alcohol liquid fuel nozzle 53 with a solenoid valve, wherein the solenoid valve of the solenoid valve of alcohol liquid fuel pump 52 and alcohol liquid fuel nozzle 53 is controlled by electronic control unit (ECU) 4 respectively, and the nozzle 53 of described alcohol liquid fuel is installed on the intake manifold 13 of motor and between air throttle 12 and fuel nozzle 23.
Wherein above-mentioned electronic control unit (ECU) 4 comprises the A/D conversion equipment, the shaping filter device, interface circuit device, identification discriminatory analysis arithmetic unit, fuel injection control system and driving circuit device thereof, ignition control device and ignition drive circuit device, idle speed controller and H bridge driving circuit device, sub controlling unit and driving circuit device thereof, the supply voltage sensor of the input termination condition checkout gear of A/D conversion equipment wherein, air inlet pressure sensor, intake air temperature sensor, air throttle enable possition sensor, two oxygen level sensors in the tail gas, the cooling liquid sensor, its output termination identification discriminatory analysis arithmetic unit, the shaft position sensor of the input termination condition checkout gear of shaping filter device, rotary speed signal sensor, the ignition switch signal, the air-conditioning switch signal, its output termination identification discriminatory analysis arithmetic unit, the detonation sensor of the input termination condition checkout gear of interface circuit device, a wherein output terminal of its output termination identification discriminatory analysis arithmetic unit, its output terminal is by its driving circuit device Bunker of Redelivery pump solenoid valve, alcohol liquid fuel nozzle solenoid valve, another output terminal of the input termination identification discriminatory analysis arithmetic unit of ignition control device, its output terminal connects each spark coil by its ignition drive circuit, the another output terminal of the input termination identification discriminatory analysis arithmetic unit of idle speed control module, output terminal connects IACV (Idle Air Control Valve) by its H bridge drive circuit, the auxiliary output terminal of the input termination identification discriminatory analysis arithmetic unit of sub controlling unit, its output terminal connects main relay by its driving and interface circuit device, trouble light, auxiliary devices such as fault diagnosis.
As Fig. 1～shown in Figure 3, the implementation method of the internal-combustion engine arrangement of realization Aalcohols fuel described in the utility model and fuel oil dual fuel injection may further comprise the steps:
(1) in internal-combustion engine, increases by an alcohol liquid fuel injection apparatus 5, this alcohol liquid fuel injection apparatus 5 comprises in regular turn the alcohol liquid fuel container 51 in the internal-combustion engine of being installed on that connects, have the alcohol liquid fuel pump 52 of solenoid valve and be installed on the intake manifold 13 of motor 1 of internal-combustion engine and the alcohol liquid fuel nozzle 53 with solenoid valve between air throttle 12 and fuel nozzle 23, the solenoid valve of the solenoid valve of wherein said alcohol liquid fuel pump 52 and alcohol liquid fuel nozzle 53 is connected and is controlled by single (ECU) 4 of nothing of this electronic control with the electronic control unit (ECU) 4 of internal-combustion engine respectively;
(2) fuel pump and 52 work a period of times of alcohol liquid fuel pump that the ignition switch of starting apparatus combustion engine, the electronic control unit of internal-combustion engine (ECU) 4 start the electromagnetic valve internal-combustion engine of the solenoid valve of fuel pump and Aalcohols fuel pump respectively are used to set up necessary fuel pressure;
(3) by electronic control unit (ECU) 4 according to crank position 34 sensor that are used for detection of engine 1 rotating speed of condition checkout gear to rate signal judge whether motor 1 starts, as motor 1 rotating speed is zero, represent that then motor 1 does not start, close the solenoid valve of petrolift and the solenoid valve of alcohol liquid fuel pump 52, otherwise
(4) electronic control unit (ECU) 4 starts solenoid valve and air throttle 12 injected fuel and Air mixing body and booster coil to motor 1 cylinder 11 in of each fuel nozzle, and electronic control unit (ECU) 4 emitted dose of controlling fuel oil according to the testing signal of suction pressure 31 sensors of condition checkout gear, intake temperature 32 sensors, crank position 34 sensors is finished the quick startup of motor 1 simultaneously;
(5) electronic control unit (ECU) 4 according to the air throttle 12 enable possition sensor of condition checkout gear to air throttle 12 enable possition signals judge whether motor 1 is in idling mode, close as air throttle 12, represent that then motor 1 is in idling mode, electronic control unit this moment (ECU) 4 control fuel nozzles 23 solenoid valves are to reduce the emitted dose of fuel oil, control alcohol liquid fuel nozzle 53 solenoid valves simultaneously with the emitted dose that increases alcohol liquid fuel and turn back to step 5, otherwise
(6) size that changes of the solar term position signal that arrives according to air throttle 12 enable possitions 33 sensor of electronic control unit (ECU) 4 is judged the working state of motor 1, diminish as air throttle 12 enable possitions, represent that then motor 1 is in the load down working state, electronic control unit this moment (ECU) 4 control fuel nozzle solenoid valves are to reduce the emitted dose of fuel oil, control alcohol liquid fuel nozzle 53 solenoid valves simultaneously to increase the emitted dose of alcohol liquid fuel, become big as air throttle 12 enable possitions, representing then that motor 1 is in increases the load operation state, electronic control unit this moment (ECU) 4 control fuel nozzle solenoid valves to be to increase the emitted dose of fuel oil, control alcohol liquid fuel nozzle 53 solenoid valves simultaneously with the emitted dose that reduces alcohol liquid fuel and turn back to step 5; As air throttle 12 enable possition no changes, then
(7) electronic control unit (ECU) 4 judges motor 1 change in rotational speed according to detected crank position 34 signals of crank position 34 sensors of condition checkout gear, little as motor 1 speed drop, representing then that motor 1 is in increases the load operation state, electronic control unit this moment (ECU) 4 control fuel nozzle solenoid valves are to increase the emitted dose of fuel oil, control alcohol liquid fuel nozzle 53 solenoid valves simultaneously to reduce the emitted dose of alcohol liquid fuel, constant or the increase as motor 1 rotating speed, represent that then motor 1 is in steady load or load down working state, electronic control unit this moment (ECU) 4 control fuel nozzle solenoid valves to be to reduce the emitted dose of fuel oil, control alcohol liquid fuel nozzle 53 solenoid valves simultaneously with the emitted dose that increases alcohol liquid fuel and turn back to step 5.
Wherein, in above-mentioned steps (5), step (6), the step (7) in cylinder of internal-combustion engine simultaneously injected fuel be to control time for spraying different in the same injection cycle according to the size of rotating speed, fuel injection quantity and the ignition advance angle of motor with alcohol liquid fuel by electronic control unit (ECU), the time for spraying of control alcohol liquid fuel is always early than the time for spraying of fuel oil.
Claims (2)
1, a kind of internal-combustion engine arrangement of realizing alcohol liquid fuel and fuel oil dual fuel injection comprises:
One has the motor (1) of at least one cylinder (11), and the cylinder (11) of this motor (1) is provided with one and has the intake manifold (13) of air throttle (12);
One fuel injection apparatus (2), described fuel injection apparatus (2) is made up of the fuel tank (21) that connects in regular turn, the fuel pump (22) with a solenoid valve, the fuel nozzle (23) with a solenoid valve;
One condition checkout gear (3) is made up of a plurality of sensors of the suction pressure (31) that is used for difference detection of engine (1), intake temperature (32), air throttle enable possition (33), crank position (34), coolant temperature (35), tail gas oxygen content motors (1) such as (36) operation working state signal;
One electronic control unit (ECU) (4) is used for moving other operation working condition and fault diagnosis that working state signal is controlled the fuel injection moment, fuel injection amount and the motor of fuel injection apparatus according to detected motor (1);
It is characterized in that also including:
One alcohol liquid fuel injection apparatus (5), this alcohol liquid fuel injection apparatus (5) is by the alcohol liquid fuel container (51) that connects in regular turn, alcohol liquid fuel pump (52) with a solenoid valve, alcohol liquid fuel nozzle (53) with a solenoid valve is formed, wherein the solenoid valve of the solenoid valve of alcohol liquid fuel pump (52) and alcohol liquid fuel nozzle (53) is controlled by electronic control unit (ECU) (4) respectively, and the intake manifold (13) that the nozzle of described alcohol liquid fuel (53) is installed on motor goes up and is positioned between air throttle (12) and the fuel nozzle (23).
2, the internal-combustion engine arrangement of realization Aalcohols fuel according to claim 1 and fuel oil dual fuel injection, above-mentioned electronic control unit (ECU) (4) comprises the A/D conversion equipment, the shaping filter device, interface circuit device, identification discriminatory analysis arithmetic unit, fuel injection control system and driving circuit device thereof, ignition control device and ignition drive circuit device, idle speed controller and H bridge driving circuit device, sub controlling unit and driving circuit device thereof, the supply voltage sensor of the input termination condition checkout gear of A/D conversion equipment wherein, air inlet pressure sensor, intake air temperature sensor, air throttle enable possition sensor, two oxygen level sensors in the tail gas, the cooling liquid sensor, its output termination identification discriminatory analysis arithmetic unit, the shaft position sensor of the input termination condition checkout gear of shaping filter device, rotary speed signal sensor, the ignition switch signal, the air-conditioning switch signal, its output termination identification discriminatory analysis arithmetic unit, the detonation sensor of the input termination condition checkout gear of interface circuit device, a wherein output terminal of its output termination identification discriminatory analysis arithmetic unit, its output terminal is by its driving circuit device Bunker of Redelivery pump solenoid valve, alcohol liquid fuel nozzle solenoid valve, another output terminal of the input termination identification discriminatory analysis arithmetic unit of ignition control device, its output terminal connects each spark coil by its ignition drive circuit, the another output terminal of the input termination identification discriminatory analysis arithmetic unit of idle speed control module, output terminal connects IACV (Idle Air Control Valve) by its H bridge drive circuit, the auxiliary output terminal of the input termination identification discriminatory analysis arithmetic unit of sub controlling unit, its output terminal connects main relay by its driving and interface circuit device, trouble light, auxiliary devices such as fault diagnosis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520066444 CN2911208Y (en) | 2005-10-31 | 2005-10-31 | I.C.engine of realizing double jetting of alcohol fuel and fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520066444 CN2911208Y (en) | 2005-10-31 | 2005-10-31 | I.C.engine of realizing double jetting of alcohol fuel and fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2911208Y true CN2911208Y (en) | 2007-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520066444 Expired - Lifetime CN2911208Y (en) | 2005-10-31 | 2005-10-31 | I.C.engine of realizing double jetting of alcohol fuel and fuel |
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| Country | Link |
|---|---|
| CN (1) | CN2911208Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639015B (en) * | 2008-07-31 | 2014-10-01 | 福特环球技术公司 | Fuel system for multi-fuel engine |
| CN104481710A (en) * | 2014-10-30 | 2015-04-01 | 长城汽车股份有限公司 | Control method and control system of multi-fuel engine and vehicle |
| CN104481710B (en) * | 2014-10-30 | 2017-01-04 | 长城汽车股份有限公司 | The control method of multifuel engine, control system and vehicle |
-
2005
- 2005-10-31 CN CN 200520066444 patent/CN2911208Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639015B (en) * | 2008-07-31 | 2014-10-01 | 福特环球技术公司 | Fuel system for multi-fuel engine |
| CN104481710A (en) * | 2014-10-30 | 2015-04-01 | 长城汽车股份有限公司 | Control method and control system of multi-fuel engine and vehicle |
| CN104481710B (en) * | 2014-10-30 | 2017-01-04 | 长城汽车股份有限公司 | The control method of multifuel engine, control system and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo de New Energy Automotive Electronic Technology Co., Ltd. Assignor: Wang Heping|Zhang Hejun|Liu ya Contract fulfillment period: 2008.12.10 to 2014.12.10 Contract record no.: 2009990000178 Denomination of utility model: I.C.engine of realizing double jetting of alcohol fuel and fuel Granted publication date: 20070613 License type: Exclusive license Record date: 20090311 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.10 TO 2014.12.10; CHANGE OF CONTRACT Name of requester: NINGBO DESIKE NEW ENERGY AUTOMOTIVE ELECTRONICS TE Effective date: 20090311 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070613 |
|
| EXPY | Termination of patent right or utility model |