CN200978727Y - Double fuel jet internal combustion engine - Google Patents
Double fuel jet internal combustion engine Download PDFInfo
- Publication number
- CN200978727Y CN200978727Y CN 200520119642 CN200520119642U CN200978727Y CN 200978727 Y CN200978727 Y CN 200978727Y CN 200520119642 CN200520119642 CN 200520119642 CN 200520119642 U CN200520119642 U CN 200520119642U CN 200978727 Y CN200978727 Y CN 200978727Y
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- alcohol liquid
- liquid fuel
- solenoid valve
- fuel injection
- motor
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Abstract
A twin fuel jet gas engine comprises a motor with at least one air cylinder, a fuel jet device, a mode detecting device, an electronic control unit (E C U), characterized in that the engine motor comprises an alcohol wet fuel jet device, each nozzle of the alcohol wet fuel jet device and each wet jet nozzle is arranged in parallel in each air cylinder. The utility model uses the structure that two pairs of nozzles are located in the absolute jet devices of air cylinders in motors, and thereby the utility model can be efficiency ensured to timing control the jet proportion of fuels and alcohol wet fuels according to difference car operating conditions to ensure that on the foundation of cars with good acceleration and steer ability, the usages of fuels can be reduced a lot and energy safety can be ensured.
Description
Technical field
The utility model relates to a kind of internal-combustion engine, particularly relates to a kind of device that uses the internal-combustion engine of 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 miscella 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.Replace diesel oil with the pure fuel of part when its advantage is high load in motor (particulate and NOx discharging all very high) operating mode, its 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, in can not being applied to the mass production of automobile and reelecting.
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 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 of dual fuel injection comprises being linked in sequence:
One is provided with the motor of at least one cylinder, and the cylinder of this motor is provided with 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 that at least one is provided with solenoid valve;
One condition checkout gear comprises a plurality of sensors of the motor operation working state signal of oxygen content in the suction pressure, intake temperature, air throttle enable possition, crank position, coolant temperature, tail gas of detection of engine respectively;
One fuel injection of controlling fuel injection apparatus according to detected motor operation working state signal constantly, other operation working condition and fault diagnosis electronic control unit ECU of fuel injection amount and motor;
Be characterized in comprising:
One alcohol liquid fuel injection apparatus, this alcohol liquid fuel injection apparatus is made up of the alcohol liquid fuel container that is linked in sequence, the alcohol liquid fuel pump that is provided with a solenoid valve, alcohol liquid fuel nozzle that at least one is provided with solenoid valve, wherein the solenoid valve of the solenoid valve of alcohol liquid fuel pump and each alcohol liquid fuel nozzle is connected with electronic control unit ECU respectively, and the nozzle of described each alcohol liquid fuel and each fuel nozzle are parallel to be installed in each cylinder of motor.
The utility model is owing to adopt two cover nozzles to lay respectively at the structure of the individual injection device in each cylinder of motor, thereby can guarantee effectively that the utility model can control the injection proportion of fuel oil and alcohol liquid fuel according to the different operating conditions of automobile in good time, can select fuel injection separately at automobile starting and when quickening or significantly reduce the injection proportion of alcohol liquid fuel and guarantee that automobile has good startability and power character, and under the basicly stable operating conditions of automobile load, can select alcohol liquid fuel to spray or significantly increase the injection proportion of alcohol liquid fuel separately, because the runnability of automobile reality is that startup and time for acceleration are extremely short, therefore internal-combustion engine described in the utility model can spray under the vast scale state at alcohol liquid fuel in the overwhelming majority time and work, and the usage ratio that alcohol liquid fuel is sprayed 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-alcohol liquid fuel such as ethanol etc., both can become and reduce China the dependence of Imported oil, the effective way of assurance energy security; Can promote agricultural development again, chance creates more jobs; And can guarantee the output power and the power character of motor again relatively, to guarantee that automobile has good acceleration and driving, and reduce the discharge of poisonous waste amount by a large amount of uses of alcohol liquid fuel such as ethanol etc., make the discharge amount of internal-combustion engine can reach EUROIII Emission Standard; And owing to be individual injection, in same injection cycle, can spray constantly by accurate the different of two kinds of fuel of control, increase work efficiency greatly and reduce consumption with blast in effective raising cylinder and flame distribution state; For whole engine structure, only need to install an alcohol liquid fuel nozzle and a pipeline additional on the fuel nozzle pipeline of former motor simultaneously, the parts production and transformation are all simple.
Describe basic structure of the present utility model and implementation method 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 dual fuel injection internal-combustion engine described in the utility model comprises:
One is provided with the motor 1 of at least one cylinder 11, and the cylinder 11 of this motor 1 is provided with 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 that is provided with a solenoid valve, the fuel nozzle 23 that at least one is provided with solenoid valve;
One condition checkout gear 3 comprises a plurality of sensors of the motor 1 operation working state signal of oxygen content 36 in the suction pressure 31, intake temperature 32, air throttle enable possition 33, crank position 34, coolant temperature 35, tail gas of detection of engine 1 respectively;
One fuel injection of controlling fuel injection apparatus according to detected motor 1 operation working state signal constantly, other operation working condition and fault diagnosis electronic control unit ECU4 of fuel injection amount and motor;
Be characterized in comprising:
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 is linked in sequence, the alcohol liquid fuel pump 52 that is provided with a solenoid valve, alcohol liquid fuel nozzle 53 that at least one is provided with solenoid valve, wherein the solenoid valve of the solenoid valve of alcohol liquid fuel pump 52 and each alcohol liquid fuel nozzle 53 is connected with electronic control unit ECU4 respectively, the nozzle 53 of described each alcohol liquid fuel and each fuel nozzle 23 parallel being installed in each cylinder of motor.
Wherein above-mentioned electronic control unit ECU4 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 controller, output terminal connects IACV (Idle Air Control Valve) by its H bridge driving circuit device, 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, the auxiliary device of fault diagnosis.
As Fig. 1～shown in Figure 3, the implementation method of the internal-combustion engine of realization Aalcohols fuel described in the utility model and fuel oil dual fuel injection is characterized in may further comprise the steps:
(1), in internal-combustion engine, increase 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, the alcohol liquid fuel nozzle with solenoid valve 53 that has in parallel each cylinder that is installed on motor of the alcohol liquid fuel pump 52 of solenoid valve and at least one and fuel nozzle 23 is formed, the solenoid valve of the solenoid valve of wherein said alcohol liquid fuel pump 52 and alcohol liquid fuel nozzle 53 be connected with the electronic control unit ECU4 of internal-combustion engine respectively and with single the no ECU4 of this electronic control, the nozzle 53 of described each alcohol liquid fuel walks abreast with each fuel nozzle 23 and is installed in each cylinder of motor.
(2), the ignition switch of starting apparatus combustion engine, fuel pump and 52 work a period of times of alcohol liquid fuel pump that the electronic control unit ECU4 of internal-combustion engine starts 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 ECU4 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 ECU4 starts solenoid valve and air throttle 12 injected fuel and Air mixing body and booster coil in motor 1 cylinder 11 of each fuel nozzle, electronic control unit ECU4 finishes the quick startup of motor 1 according to the emitted dose of the testing signal control fuel oil of suction pressure 31 sensors of condition checkout gear, intake temperature 32 sensors, crank position 34 sensors simultaneously;
(5), electronic control unit ECU4 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 ECU4 control this moment fuel nozzle 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), the size that the solar term position signal that electronic control unit ECU4 arrives according to air throttle 12 enable possitions 33 sensor changes 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 ECU4 control this moment fuel nozzle solenoid valve is 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 ECU4 control this moment fuel nozzle solenoid valve to be to increase the emitted dose of fuel oil, controls 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 ECU4 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 ECU4 control this moment fuel nozzle solenoid valve is 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 ECU4 control this moment fuel nozzle solenoid valve to be to reduce the emitted dose of fuel oil, controls 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 dual fuel injection internal-combustion engine comprises being linked in sequence:
One is provided with the motor (1) of at least one cylinder (11), and the cylinder (11) of this motor (1) is provided with 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) that is provided with a solenoid valve, the fuel nozzle (23) that at least one is provided with solenoid valve;
One condition checkout gear (3) comprises a plurality of sensors of motor (1) the operation working state signal of oxygen content (36) in the suction pressure (31), intake temperature (32), air throttle enable possition (33), crank position (34), coolant temperature (35), tail gas of detection of engine (1) respectively;
One fuel injection of controlling fuel injection apparatus according to detected motor (1) operation working state signal constantly, other operation working condition and fault diagnosis electronic control unit ECU (4) of fuel injection amount and motor;
It is characterized in that comprising:
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 is linked in sequence, the alcohol liquid fuel pump (52) that is provided with a solenoid valve, alcohol liquid fuel nozzle (53) that at least one is provided with solenoid valve, wherein the solenoid valve of the solenoid valve of alcohol liquid fuel pump (52) and each alcohol liquid fuel nozzle (53) is connected with electronic control unit ECU (4) respectively, and the nozzle of described each alcohol liquid fuel (53) is installed in each cylinder of motor with each fuel nozzle (23) is parallel.
2, dual fuel injection internal-combustion engine according to claim 1, it is characterized in that 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 controller, output terminal connects IACV (Idle Air Control Valve) by its H bridge driving circuit device, 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, the auxiliary device of fault diagnosis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520119642 CN200978727Y (en) | 2005-11-29 | 2005-11-29 | Double fuel jet internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520119642 CN200978727Y (en) | 2005-11-29 | 2005-11-29 | Double fuel jet internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200978727Y true CN200978727Y (en) | 2007-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520119642 Expired - Lifetime CN200978727Y (en) | 2005-11-29 | 2005-11-29 | Double fuel jet internal combustion engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN200978727Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581248B (en) * | 2008-05-15 | 2013-05-01 | 福特环球技术公司 | Engine exhaust temperature regulation |
| CN115467755A (en) * | 2022-10-13 | 2022-12-13 | 武汉菱电汽车电控系统股份有限公司 | Electric control method for fuel fractional injection of double nozzles of PFI engine |
-
2005
- 2005-11-29 CN CN 200520119642 patent/CN200978727Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581248B (en) * | 2008-05-15 | 2013-05-01 | 福特环球技术公司 | Engine exhaust temperature regulation |
| CN115467755A (en) * | 2022-10-13 | 2022-12-13 | 武汉菱电汽车电控系统股份有限公司 | Electric control method for fuel fractional injection of double nozzles of PFI engine |
| CN115467755B (en) * | 2022-10-13 | 2024-03-19 | 武汉菱电汽车电控系统股份有限公司 | Electric control method for double-nozzle fuel oil split injection of PFI engine |
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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.: 2009990000180 Denomination of utility model: Double fuel jet internal combustion engine Granted publication date: 20071121 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: 20071121 |
|
| EXPY | Termination of patent right or utility model |