CN201034047Y - Automobile engine expanding intelligent fuel-gas feeding system - Google Patents
Automobile engine expanding intelligent fuel-gas feeding system Download PDFInfo
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- CN201034047Y CN201034047Y CNU2007201026841U CN200720102684U CN201034047Y CN 201034047 Y CN201034047 Y CN 201034047Y CN U2007201026841 U CNU2007201026841 U CN U2007201026841U CN 200720102684 U CN200720102684 U CN 200720102684U CN 201034047 Y CN201034047 Y CN 201034047Y
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Abstract
The utility model discloses an extended intelligent fuel and air supply system for an automobile engine, comprising a sensor, an engine ECU control circut, an actuator, a hot start motor controlled by an extended ECU control circuit, and an air feeder controlled by the extended ECU control circuit. The air feeder comprises a booster fan assembled in the pipeline of the air supply system, an air spiral guiding object matched with the booster fan, and an inlet pipe of the engine matched with the air spiral guiding object. The extended ECU control circuit comprises a signal conditioning circuit of the sensor, an input circuit of dangerous signal, a CPU circuit, and an output drive circuit. The input end of the CPU circuit is connected with the output end of the signal conditioning circuit of the sensor and the input circuit of dangerous signal; the output end of the CPU circuit is connected with the input end of the output drive circuit. The utility model has the advantages of power increase with the increase rate of above 5%, oil consumption reduction with the oil-saving rate of above 10%, and high purifying rate of exhaust emission, and higher efficiency in environmental protection-above the Europe IV standard.
Description
Technical field
The utility model relates to a kind of motor car engine and expands intelligent supplying oil and gas system.
Background technique
Motor car engine is a kind of to be to obtain kinetic energy with oil inflame, carries out the machine of power output.Motor car engine is in real work, and power demand is ever-changing, and working conditions such as idling, little load, middle load and full load are arranged.The required material of motor car engine acting has only two kinds: air and fuel oil, for adapting to the different load demand, motor is in the course of the work according to the demand of loading, at any time adjust the ratio of air and fuel oil, when especially the frequent amplitude of load variations increases, frequency and the amplitude of adjusting air and fuel oil can be bigger, in whole dynamic adjustment process, be difficult to guarantee optimum air and fuel ratio, cause fuel oil fully not burn, the part fuel oil changes into black smoke and enters atmosphere, oil consumption is increased, and environment is caused very big pollution.
Motor car engine is a kind of machine that consumes very much gas, and is also very high to the requirement of air, as temperature, humidity, degree of purification, delivery volume and contain oxygen ratio etc.The quality and quantity of air and the ratio of mixing with fuel oil directly have influence on the degree of purification of Economy, power character and the exhaust emissions of motor.The engine technology development so far, the ratio of air and fuel oil will adapt to the motor dynamic characteristic, air and fuel oil are controlled in the desirable calculated value (14.7: 1), it is a global difficult problem, in countries in the world automobile emissions standards are required under the more and more stricter situation, MANUFACTURER and user can only sacrifice Economy, power character guarantees that discharging does not exceed standard.
Set up air and the fuel oil system that ensures supply synchronously, implement the improvement to the charge air flow state, the flow velocity in the accelerating charge process reduces the shock range in the intake process.
The model utility content
The utility model technical issues that need to address provide a kind of motor car engine and expand intelligent supplying oil and gas system, make the burning mixture proportioning more reasonable, firing effect is better, engine response is fast, obtain power rapidly, carbon distribution reduces, tail gas clean-up degree height, not only fuel-economizing but also environmental protection.
For achieving the above object, technical solution adopted in the utility model is:
A kind of motor car engine is expanded intelligent supplying oil and gas system, comprise sensor, the Engine ECU control circuit, performer, also comprise the thermal starting motor of being expanded the control of ECU control circuit, the air feeder of forming and be controlled by expansion ECU control circuit by the engine air inlet tube that is assemblied in force(d) (draft) fan in the air system pipeline and the air spiral stream guidance body that cooperates with force(d) (draft) fan and cooperate with air spiral stream guidance body, expansion ECU control circuit comprises sensor signal conditioning circuit, the red signal input circlult, cpu circuit, output driving circuit, the input end of the output termination cpu circuit of sensor signal conditioning circuit and red signal input circlult, the input end of the output termination output driving circuit of cpu circuit; The inertia of this expansion ECU control circuit comprehensive utilization motor and vehicle; power driven vehicle with motor; between given zone He in the time, slide, stop when traffic congestion, red light standby oil; autostop when temperature arrives predetermined temperature during idle machine; when needing to recover power; the automatic actuation engine proper functioning; at vehicle by static state during to dynamic conversion and auxiliary by the thermal starting motor during ato unit; change the detuning phenomena of dynamic operation condition air and fuel ratio, dynamic space-time gas is followed the tracks of compensation.
The input signal of above-mentioned expansion ECU control circuit comprises closure voltage signal, temperature signal, oxygen sensor signal, intake pressure sensor signal, vehicle speed sensor signal, corner signal, air-conditioning demand signal, oil sprayer input signal.
The sensor signal conditioning circuit comprises digital signal processing circuit and analog signal processing circuit, the processes temperature signal circuit of digital signal processing circuit is by optocoupler U11, phase inverter U2D, resistance R 8 is formed, temperature signal connects 1 pin of optocoupler U11, the 2 pin ground connection of optocoupler U11,4 pin of optocoupler U11 connect 9 pin of phase inverter U2D, the end of while connecting resistance R8, resistance R 8 another termination power VCC, 8 pin of phase inverter U2D connect 8 pin of single-chip microcomputer U1, other supplied with digital signal processing circuits are identical element circuit with the processes temperature signal circuit, the closure voltage signal processing circuit of analog signal processing circuit is by amplifier U26A, AD converter U25, optocoupler U29-U33, phase inverter U27, U28, resistance R 55-R69 forms, wherein 3 pin of amplifier U26A are just connecing the closure voltage signal, 4 of amplifier U26A, 8 pin meet power vd D respectively, VCC, 2 pin of amplifier U26A connect 3 pin that meet AD converter U25 behind 1 pin again, 37 pin of single-chip microcomputer U1 connect 3 pin of optocoupler U31 by phase inverter U27A, the end of the node connecting resistance R62 of phase inverter U27A and optocoupler U31, another termination power VCC of resistance R 62, resistance R 61 is connected between 2 pin and power supply VCC of optocoupler U31,6 pin of optocoupler U31 connect 13 pin of AD converter U25 by phase inverter U27D, the end of the node connecting resistance R63 of optocoupler U31 and phase inverter U27D, another termination power 5v of resistance R 62, at 7 of optocoupler U31,8 pin meet power supply 5v, 38 of single-chip microcomputer U1,39 pin are connected to 2 of AD converter U25 with 37 pin respectively with identical element circuit and Placement, 12 pin, 11 pin of AD converter U25 connect 3 pin of optocoupler U29 by phase inverter U28A, the end of the node connecting resistance R62 of phase inverter U28A and optocoupler U29, another termination power 5v of resistance R 62, resistance R 61 is connected between 2 pin and power supply 5v of optocoupler U31,6 pin of optocoupler U29 connect 36 pin of single-chip microcomputer U1 by phase inverter U28C, the end of the node connecting resistance R57 of optocoupler U29 and phase inverter U28C, another termination power VCC of resistance R 57, at 7 of optocoupler U31,8 pin meet power supply VCC, and 10 pin of AD converter U25 and 11 pin are connected to 35 pin of single-chip microcomputer U1 with identical element circuit and Placement.
Above-mentioned red signal input circlult is made up of switch S 1,42 input nand gate chip U24, resistance 53,54, the common point ground connection of switch S 1,22,4 pin that meet four or two input nand gate chip U24A, U24B respectively in addition, the node of four or two input nand gate chip U24A, U24B and switch S 1 meets power supply VCC by resistance R 53, R54 respectively, 3 pin of four or two input nand gate chip U24A connect 5 pin of U24B and 12 pin of single-chip microcomputer U1, and 1 pin of four or two input nand gate chip U24A connects 6 pin of U24B.
Above-mentioned output driving circuit comprises drive circuit of injector, air feeder blower fan drive circuit, the thermal starting motor-drive circuit, wherein the thermal starting motor-drive circuit is by phase inverter U21F, U22C, optocoupler U19, resistance R 41-R45, triode Q11, Q12 forms, 27 pin of single-chip microcomputer U1 connect 2 pin of optocoupler U19 respectively by phase inverter U21F and resistance R 42, the node of phase inverter U21F and resistance R 42 meets power supply VCC by resistance R 41,1 pin of optocoupler U19 meets power supply VCC, 3 pin of optocoupler U19 connect the base stage of triode Q11 respectively by phase inverter U22C and resistance R 44, the node of phase inverter U22C and resistance R 44 meets power supply 12v by resistance R 43,4 pin of optocoupler U19 connect simulation ground and connect the base stage of emitter and the triode Q12 of triode Q11 by resistance R 45, the collector electrode of triode Q11 meets power supply 12v by resistance R 46, the collector electrode of triode Q12 meets power supply VCC, the emitter of triode Q12 connects load input terminal, and other drive circuits also adopt identical circuit structure and Placement.
Adopt the beneficial effect that technique scheme produced to be:
This novel sensor that comprises, the Engine ECU control circuit, performer, also comprise the thermal starting motor of being expanded the control of ECU control circuit, the air feeder of forming and be controlled by expansion ECU control circuit by the engine air inlet tube that is assemblied in force(d) (draft) fan in the air filter loam cake and the air spiral stream guidance body that cooperates with force(d) (draft) fan and cooperate with air spiral stream guidance body, expansion ECU control circuit comprises sensor signal conditioning circuit, the red signal input circlult, cpu circuit, output driving circuit, the input end of the output termination cpu circuit of sensor signal conditioning circuit and red signal input circlult, the input end of the output termination output driving circuit of cpu circuit, during automobile slide, cut off the supplying fuel of motor, motor self is in passive rotation, and discharging is zero; When the engine idle state, arrive autostop when requiring temperature, stop idle consumable phenomenon, reduce the motor running time, reduce emission of harmful substances; When traffic congestion or when waiting red light, motor and vehicle are in idle consumable state, manual at this moment or automatic fuel shut-off supply; Optimize the fuel feeding pattern of motor dynamic operation condition, change the out-of-control phenomenon of dynamic operation condition air and fuel ratio, realize the dynamic air compensation, the optimized combustion effect promotes former car engine power; The inertia of this novel comprehensive utilization motor and vehicle; power driven vehicle with motor; between given zone He in the time, slide, stop when traffic congestion, red light standby oil; autostop when temperature arrives predetermined temperature during idle machine; when need recovering power, the automatic actuation engine proper functioning, at vehicle by static state during to dynamic conversion and auxiliary by the thermal starting motor during ato unit; change the detuning phenomena of dynamic operation condition air and fuel ratio, dynamic space-time gas is followed the tracks of compensation.This novel power and reduction fuel consumption of not only improving, more outstanding characteristic is an exhaust emissions degree of purification height, its fuel saving ratio is higher than more than 10%.Power-lift is greater than more than 5%.Environmental protection is higher than former situation--Europe IV.
Description of drawings
Fig. 1 is the utility model expansion ECU control circuit theory diagram;
Fig. 2 is the utility model schematic diagram analog signal processing circuit schematic diagram;
Fig. 3 is the utility model schematic diagram digital signal processing circuit and cpu circuit schematic diagram;
Fig. 4 is the utility model schematic diagram output driving circuit schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
As shown in Figure 1, expansion ECU control circuit comprises sensor signal conditioning circuit, red signal input circlult, cpu circuit, output driving circuit, sensor signal is input to the input end of sensor signal conditioning circuit, the input end of the output termination cpu circuit of sensor signal conditioning circuit and red signal input circlult, the input end of the output termination output driving circuit of cpu circuit.The output termination executive component of output driving circuit, such as the blower fan of air feeder, thermal starting motor, oil sprayer etc.
As Fig. 2,3, shown in 4, this circuit is the main functionality circuit of expansion ECU control circuit, the sensor signal input processing circuit is divided into digital signal processing circuit and analog signal processing circuit, digital signal processing circuit is the example explanation with the processes temperature signal circuit, its basic element circuit is by optocoupler U11, phase inverter U2D, resistance R 8 is formed, temperature signal connects 1 pin of optocoupler U11, the 2 pin ground connection of optocoupler U11,4 pin of optocoupler U11 connect 9 pin of phase inverter U2D, the end of while connecting resistance R8, resistance R 8 another termination power VCC, 8 pin of phase inverter U2D connect 8 pin of single-chip microcomputer U1, adopt the circuit identical during the signal processing of other sensors input with the element circuit of treatment temperature signal, analog signal processing circuit is with the explanation of closure voltage signal processing circuit, its basic circuit is by amplifier U26A, AD converter U25, optocoupler U29-U33, phase inverter U27, U28, resistance R 55-R69 forms, wherein 3 pin of amplifier U26A are just connecing the closure voltage signal, 4 of amplifier U26A, 8 pin meet power vd D respectively, VCC, 2 pin of amplifier U26A connect 3 pin that meet AD converter U2 5 behind 1 pin again, 37 pin of single-chip microcomputer U1 connect 3 pin of optocoupler U31 by phase inverter U27A, the end of the node connecting resistance R62 of phase inverter U27A and optocoupler U31, another termination power VCC of resistance R 62, resistance R 61 is connected between 2 pin and power supply VCC of optocoupler U31,6 pin of optocoupler U31 connect 13 pin of AD converter U25 by phase inverter U27D, the end of the node connecting resistance R63 of optocoupler U31 and phase inverter U27D, another termination power 5v of resistance R 62, at 7 of optocoupler U31,8 pin meet power supply 5v, 38 of single-chip microcomputer U1,39 pin are connected to 2 of AD converter U25 with 37 pin respectively with identical element circuit and Placement, 12 pin, 11 pin of AD converter U25 connect 3 pin of optocoupler U29 by phase inverter U28A, the end of the node connecting resistance R62 of phase inverter U28A and optocoupler U29, another termination power 5v of resistance R 62, resistance R 61 is connected between 2 pin and power supply 5v of optocoupler U31,6 pin of optocoupler U29 connect 36 pin of single-chip microcomputer U1 by phase inverter U28C, the end of the node connecting resistance R57 of optocoupler U29 and phase inverter U28C, another termination power VCC of resistance R 57, at 7 of optocoupler U31,8 pin meet power supply VCC, 10 pin of AD converter U25 and 11 pin are connected to 35 pin of single-chip microcomputer U1 with identical element circuit and Placement, and Analog signals all adopts top described element circuit if desired; Cpu circuit is made up of single-chip microcomputer and peripheral circuit thereof, and peripheral circuit is by crystal oscillation circuit of being made up of crystal oscillator X1, capacitor C 7, C8 and the reset circuit be made up of resistance R 9 and capacitor C 9; The red signal input circlult is made up of switch S 1,42 input nand gate chip U24, resistance 53,54, the common point ground connection of switch S 1,22,4 pin that meet four or two input nand gate chip U24A, U24B respectively in addition, the node of four or two input nand gate chip U24A, U24B and switch S 1 meets power supply VCC by resistance R 53, R54 respectively, 3 pin of four or two input nand gate chip U24A connect 5 pin of U24B and 12 pin of single-chip microcomputer U1, and 1 pin of four or two input nand gate chip U24A connects 6 pin of U24B; Drive circuit is made up of some identical cell driving circuits, with the thermal starting motor-drive circuit is the example explanation, it is by phase inverter U21F, U22C, optocoupler U19, resistance R 41-R45, triode Q11, Q12 forms, 27 pin of single-chip microcomputer U1 connect 2 pin of optocoupler U19 respectively by phase inverter U21F and resistance R 42, the node of phase inverter U21F and resistance R 42 meets power supply VCC by resistance R 41,1 pin of optocoupler U19 meets power supply VCC, 3 pin of optocoupler U19 connect the base stage of triode Q11 respectively by phase inverter U22C and resistance R 44, the node of phase inverter U22C and resistance R 44 meets power supply 12v by resistance R 43,4 pin of optocoupler U19 connect simulation ground and connect the base stage of emitter and the triode Q12 of triode Q11 by resistance R 45, the collector electrode of triode Q11 meets power supply VCC by resistance R 46, the collector electrode of triode Q12 meets load power source VCC, and the emitter of triode Q12 connects load input terminal.
Working principle: this novel expansion ECU control circuit is by the sensor acquisition signal of former car sensor and increase, interface adopts expansion interface, do not destroy primary car structure, judge the vehicle motor operating mode by sensor signal, and then control performer (thermal starting motor, oil sprayer, air feeder blower fan), make motor be in optimum Working.
The sensor digital signal of signal processing circuit is by light-coupled isolation, phase inverter oppositely back input single-chip microcomputer is handled, analogue signal is by after the AD converter, pass through the reverse and light-coupled isolation input single-chip microcomputer of phase inverter again, import by switch Deng red signal, switching signal is imported single-chip microcomputer after de-twitter circuit goes to tremble, single-chip microcomputer calculates and judgement output by the program that is stored in its program storage, its output signal is reverse by phase inverter, and after light-coupled isolation, reverse through phase inverter again, drive triode cascade amplification circuit, thereby drive executive component work.
Claims (5)
1. a motor car engine is expanded intelligent supplying oil and gas system, comprise sensor, the Engine ECU control circuit, performer, it is characterized in that: also comprise the thermal starting motor of being expanded the control of ECU control circuit, form by the engine air inlet tube that is assemblied in force(d) (draft) fan in the air system pipeline and the air spiral stream guidance body that cooperates with force(d) (draft) fan and cooperate with air spiral stream guidance body, and the air feeder that is controlled by expansion ECU control circuit, expansion ECU control circuit comprises sensor signal conditioning circuit, the red signal input circlult, cpu circuit, output driving circuit, the input end of the output termination cpu circuit of sensor signal processing circuit and red signal input circlult, the input end of the output termination output driving circuit of cpu circuit.
2. motor car engine according to claim 1 is expanded intelligent supplying oil and gas system, it is characterized in that the input signal of described expansion ECU control circuit comprises closure voltage signal, temperature signal, oxygen sensor signal, intake pressure sensor signal, vehicle speed sensor signal, air-conditioning demand signal, oil sprayer input signal.
3. motor car engine according to claim 1 is expanded intelligent supplying oil and gas system, it is characterized in that described sensor signal conditioning circuit comprises digital signal processing circuit and analog signal processing circuit, the processes temperature signal circuit of digital signal processing circuit is by optocoupler U11, phase inverter U2D, resistance R 8 is formed, temperature signal connects 1 pin of optocoupler U11, the 2 pin ground connection of optocoupler U11,4 pin of optocoupler U11 connect 9 pin of phase inverter U2D, the end of while connecting resistance R8, resistance R 8 another termination power VCC, 8 pin of phase inverter U2D connect 8 pin of single-chip microcomputer U1, other supplied with digital signal processing circuits are identical element circuit with the processes temperature signal circuit, the closure voltage signal processing circuit of analog signal processing circuit is by amplifier U26A, AD converter U25, optocoupler U29-U33, phase inverter U27, U28, resistance R 55-R69 forms, wherein 3 pin of amplifier U26A are just connecing the closure voltage signal, 4 of amplifier U26A, 8 pin meet power vd D respectively, VCC, 2 pin of amplifier U26A connect 3 pin that meet AD converter U25 behind 1 pin again, 37 pin of single-chip microcomputer U1 connect 3 pin of optocoupler U31 by phase inverter U27A, the end of the node connecting resistance R62 of phase inverter U27A and optocoupler U31, another termination power VCC of resistance R 62, resistance R 61 is connected between 2 pin and power supply VCC of optocoupler U31,6 pin of optocoupler U31 connect 13 pin of AD converter U25 by phase inverter U27D, the end of the node connecting resistance R63 of optocoupler U31 and phase inverter U27D, another termination power 5v of resistance R 62, at 7 of optocoupler U31,8 pin meet power supply 5v, 38 of single-chip microcomputer U1,39 pin are connected to 2 of AD converter U25 with 37 pin respectively with identical element circuit and Placement, 12 pin, 11 pin of AD converter U25 connect 3 pin of optocoupler U29 by phase inverter U28A, the end of the node connecting resistance R62 of phase inverter U28A and optocoupler U29, another termination power 5v of resistance R 62, resistance R 61 is connected between 2 pin and power supply 5v of optocoupler U31,6 pin of optocoupler U29 connect 36 pin of single-chip microcomputer U1 by phase inverter U28C, the end of the node connecting resistance R57 of optocoupler U29 and phase inverter U28C, another termination power VCC of resistance R 57, at 7 of optocoupler U31,8 pin meet power supply VCC, and 10 pin of AD converter U25 and 11 pin are connected to 35 pin of single-chip microcomputer U1 with identical element circuit and Placement.
4. motor car engine according to claim 1 is expanded intelligent supplying oil and gas system, it is characterized in that described red signal input circlult is by switch S 1, four or two input nand gate chip U24, resistance 53,54 form, the common point ground connection of switch S 1,2 meet four or two input nand gate chip U24A respectively in addition, 2 of U24B, 4 pin, four or two input nand gate chip U24A, the node of U24B and switch S 1 is respectively by resistance R 53, R54 meets power supply VCC, 3 pin of four or two input nand gate chip U24A connect 5 pin of U24B and 12 pin of single-chip microcomputer U1, and 1 pin of four or two input nand gate chip U24A connects 6 pin of U24B.
5. motor car engine according to claim 1 is expanded intelligent supplying oil and gas system, it is characterized in that described output driving circuit comprises drive circuit of injector, air feeder blower fan drive circuit, the thermal starting motor-drive circuit, wherein the thermal starting motor-drive circuit is by phase inverter U21F, U22C, optocoupler U19, resistance R 41-R45, triode Q11, Q12 forms, 27 pin of single-chip microcomputer U1 connect 2 pin of optocoupler U19 respectively by phase inverter U21F and resistance R 42, the node of phase inverter U21F and resistance R 42 meets power supply VCC by resistance R 41,1 pin of optocoupler U19 meets power supply VCC, 3 pin of optocoupler U19 connect the base stage of triode Q11 respectively by phase inverter U22C and resistance R 44, the node of phase inverter U22C and resistance R 44 meets power supply 12v by resistance R 43,4 pin of optocoupler U19 connect simulation ground and connect the base stage of emitter and the triode Q12 of triode Q11 by resistance R 45, the collector electrode of triode Q11 meets power supply 12v by resistance R 46, the collector electrode of triode Q12 meets load power source VCC, the emitter of triode Q12 connects load input terminal, and other drive circuits also adopt identical circuit structure and Placement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201026841U CN201034047Y (en) | 2007-09-30 | 2007-09-30 | Automobile engine expanding intelligent fuel-gas feeding system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201026841U CN201034047Y (en) | 2007-09-30 | 2007-09-30 | Automobile engine expanding intelligent fuel-gas feeding system |
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| CN201034047Y true CN201034047Y (en) | 2008-03-12 |
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| CNU2007201026841U Expired - Fee Related CN201034047Y (en) | 2007-09-30 | 2007-09-30 | Automobile engine expanding intelligent fuel-gas feeding system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111527736A (en) * | 2017-12-27 | 2020-08-11 | 斯堪尼亚商用车有限公司 | Method for configuring expansion interface and control unit |
-
2007
- 2007-09-30 CN CNU2007201026841U patent/CN201034047Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111527736A (en) * | 2017-12-27 | 2020-08-11 | 斯堪尼亚商用车有限公司 | Method for configuring expansion interface and control unit |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HEBEI FEIER DRIVING SCIENCE + TECHNOLOGY DEVELOPME Free format text: FORMER OWNER: CHEN SHUANGQUAN Effective date: 20090508 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090508 Address after: No. 44, the Yellow River Avenue, East hi tech Development Zone, Hebei, Shijiazhuang: 050021 Patentee after: Hebei Feier Power Science and Technology Development Co., Ltd. Address before: Unit 1, building four, Hebei Xinhua printing two factory, Shi Luan Road, Shijiazhuang, Hebei 101, zip code: 050021 Co-patentee before: Li Bingzhang Patentee before: Chen Bi Quan |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080312 Termination date: 20110930 |