CN2400595Y

CN2400595Y - Multi-spark igniter

Info

Publication number: CN2400595Y
Application number: CN 99210372
Authority: CN
Inventors: 冯惠祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-02
Filing date: 1999-06-02
Publication date: 2000-10-11
Anticipated expiration: 2009-06-02

Abstract

The utility model discloses a multi-spark igniter, which comprises a power switch, a platinum igniter and a high-voltage coil. The utility model is characterized in that the multi-spark igniter also comprises an oscillating circuit which is composed of a triode, a diode, a resistor and a capacitor, wherein, one end of the oscillating circuit is connected with the positive electrode of the high-voltage coil, and the other end is connected with the negative electrode of the high-voltage coil. When an engine is started, the oscillating circuit can begin to be opened and closed continuously due to sparking voltage which is generated by the opening and the closing of platinum, so that multi-spark ignition can be formed till the platinum is closed. The multi-spark igniter can effectively improve the combustion efficiency, can more obviously decrease pollutant discharge, and can improve the service life of the igniter.

Description

The mulitple ignition device

The utility model relates to a kind of mulitple ignition device, specifically, the utility model relates to a kind of can produce a plurality of sparks and prolong firing time make the mixed gas mulitple ignition device that fully burns.

Ignition system is very important concerning spark-ignition engine, the each igniting of present ignition system can only produce a spark, and to successfully light mixed gas, also depend on the multiple factors such as oil gas mixing ratio in the firing chamber, yet oil gas mixes situation and can produce difference with factors such as the temperature of engine itself and environmental changes in the cylinder, therefore, no matter how advanced the design of engine is, and the ignition system that adopts can not guarantee under any circumstance all can light a fire smoothly in good time at present.

Multiple-spark discharge ignition system is at the problems referred to above, is not enough design that remedies the igniting of general point ignition system, and this system need not to do on the engine igniting system that big repacking can be installed in most of vehicles easily (referring to accompanying drawing 1).

The purpose of this utility model provides and a kind ofly can produce a plurality of sparks and prolong firing time, overcomes the deficiency of general point firearm, guarantees the mulitple ignition device that under any circumstance all can light a fire smoothly.

For achieving the above object, the solution that the utility model adopted is: a kind of mulitple ignition device, comprise power switch, platinum point firearm and high-tension coil, it is characterized in that: it also comprises a vibrator circuit of being made up of triode, diode, resistance and electric capacity, one end of this vibrator circuit is connected in the positive pole of high-tension coil, and the other end is connected in the negative pole of high-tension coil.

After adopting such scheme, because igniter is provided with vibrator circuit, can make has a plurality of sparks to take place in the burn period, thereby strengthened the energy that forms flame kernel, and develop the flame that to propagate rapidly, prolonged firing time, thereby the success rate and the mixed gas alkene that have improved igniting burn speed, have saved fuel oil.

Be description of drawings below,, can more be expressly understood scheme described in the utility model by description of drawings and in conjunction with the following detailed description, wherein:

Accompanying drawing 1 is the installation wiring diagram of mulitple ignition device;

Accompanying drawing 2 is arcing situations of mulitple ignition device described in the utility model;

Accompanying drawing 3 is ignition voltage waveforms of mulitple ignition device described in the utility model.

Accompanying drawing 4 is the vibrator circuit figure in the mulitple ignition device described in the utility model;

In above-mentioned accompanying drawing, the 1st, power switch, the 2nd, vibrator circuit, the 3rd, platinum ignition switch or all-electronin igniter; The 4th, high-tension coil, the 5th, the time zone that the platinum point firearm is opened, the 6th, the shut-in time zone of platinum point firearm, the 7th, the platinum point firearm is opened the sparking voltage that is produced, the 8th, the sparking voltage that the mulitple ignition device is produced.

To detailed description of the present utility model below:

The research of relevant burning points out, has propagation from spark plug sparking to making the combustion chamber mixture combustion and forming The flame of ability, this process roughly are divided into two stages. When spark plug sparking, produce pyrophoric regional area Middle gaseous mixture is heated, and begins to get angry to react, and through the regular hour, forms flame kernel, and this is the phase I, Be called time lag of inflammation; Second stage, flame kernel further develops, until to a certain degree, just forms and can pass The flame of broadcasting.

Therefore, for the success of lighting a fire, the first, must supply with and form the necessary energy of flame kernel; The second, must Must replenish makes flame kernel develop into a certain size necessary energy. A rear condition be as being met, and then one The flame kernel that degree produces will extinguish, so that can not light a fire.

Multi-spark igniter described in the utility model is exactly by fully satisfying above-mentioned two conditions, and particularly second The requirement of bar overcomes the deficiency of general point ignition system, the efficient igniting of realization.

See the ignition voltage output waveform of multi-spark igniter shown in the accompanying drawing 3, the igniter that adopts in prior art produces And then the ignition voltage that is periodic damping 8 that is produced by many sparks device behind the ignition voltage 7 of giving birth to. They make a little Fire is interim to have a plurality of sparks to take place, thereby has strengthened the energy that forms flame kernel, makes gaseous mixture that better chance be arranged Lighted; Energy requirement has also obtained fully satisfying because arc energy repeats to make flame kernel development institute continuously simultaneously, Guarantee that flame kernel can develop the flame that can propagate rapidly. Thereby success rate and the gaseous mixture of igniting have greatly been improved Burn rate.

In addition, research points out, the igniter of prior art needs 32 microseconds approximately lighting a fire to the blow-out of igniter own, and the general required spark of four-stroke gasoline engine cylinder fuel perfect combustion should be not less than 400 microseconds perdurabgility.

And mulitple ignition device described in the utility model is brought into play its continuous ignition function, can reach fully, even greater than 400 microseconds, thereby make the burning of mixed gas be tending towards complete.This point also makes this system to oil-gas ratio, ignition advance angle, and the variation of factors such as spark plug gap has good adaptability, still can guarantee smooth igniting when condition changes.

Igniter is very important concerning engine.The present igniter arcing function for once that adopts could realize ignition when having only oil gas mixing ratio to reach certain quantity.Yet oil gas in the cylinder mixes situation can produce difference with the temperature and the environmental change of engine itself, and therefore, no matter the design of engine advanced person how can not guarantee under any circumstance can light a fire smoothly.

The mulitple ignition device that the utility model proposes is at the problems referred to above, remedies the not enough of general point firearm igniting and design.The vibrator circuit 2 of this igniter can be installed on the engine igniter of most of vehicles simply, become the mulitple ignition device, make original single arcing number of times become mulitple ignition, thereby strengthen ignition function, engine can be at different oil gas mixing ratio down-firings, and it is more quick even to burn.

Lighting of mixed gas in the engine cylinder relies on conduction to form diffusive combustion, adopt present ignition system, because previous reasons, run up down at engine, there is partially mixed gas also not have enough time to burn promptly to be gone out outside the firing chamber in the cylinder by pressure, cause fuel oil waste, horsepower deficiency, and cause environmental pollution.

Adopt mulitple ignition device described in the utility model, because ignition intensity is big, the mixed gas that enters cylinder can produce swirl shape and mix moving in compression process, many sparks device is brought into play continuous ignition function, produce bull and light mixed gas, light effect, make mixture combustion be tending towards complete thereby strengthen, energy saving reduces pollutant emission.

Embodiment one

As shown in Figures 1 to 4, the structure of described mulitple ignition device comprises power switch 1, platinum ignition switch or all-electronin igniter 3, high-tension coil 4 and vibrator circuit 2, one end of this vibrator circuit 2 is connected in the positive pole of high-tension coil 4, and its other end is connected in the negative pole (see figure 1) of high-tension coil 4.Fig. 2 has illustrated the arcing situation of mulitple ignition device, i.e. the time zone 6 that the time zone 5 of platinum point firearm unlatching and platinum point firearm are closed.Fig. 3 has represented the ignition voltage waveform of mulitple ignition device, the sparking voltage 8 that sparking voltage 7 that the platinum point firearm is produced and mulitple ignition device are produced, illustrated in the mulitple ignition device owing to installed vibrator circuit 2, shown major character of the present utility model, this vibrator circuit 2 should make the mulitple ignition device generation ignition voltage that is periodic damping as shown in Figure 3, behind power connection, the about 5-10KV of the ignition voltage of platinum point firearm 3, no matter platinum point firearm 3 is in is opened or engages, because the high voltage flash phenomenon that high-tension coil 4 negative poles also produce less than the folding because of platinum point firearm 3, corresponding mulitple ignition device does not carry out arcing.

When engine starting energising, the folding that the sparking voltage that is produced because of 3 foldings of platinum point firearm does not stop vibrating circuit 2 beginnings of mulitple ignition device, the on-off action that is equivalent to platinum point firearm 3, thereby spark is ceaselessly being jumped, till platinum point firearm 3 cut out, the principle of use electronic ignitin system too.

Wherein, in the present embodiment, the described sparking voltage that is decay carried out in the time that is not less than 50 microseconds, and its upper limit is 4/5 time of a combustion process.

Embodiment two

In the present embodiment, other are identical with embodiment 1, the vibrator circuit 2 that different are in the igniter is installed as shown in Figure 4, after power switch 1 is connected, no matter platinum point firearm 3 is to be in unlatching or jointing state, because the high voltage flash phenomenon that high-tension coil 4 negative poles also do not produce because of 3 foldings of platinum point firearm, make the negative pole bias voltage of the R3 of vibrator circuit 2 can make the TR1 conducting, thereby make also conducting together of TR2, the B pin of TR3 just can be in low voltage for a long time, therefore, the mulitple ignition device can the take-off fire action.

When engine starting energising, the sparking voltage that is produced because of 3 foldings of platinum point firearm enters the D2 of mulitple ignition device vibrator circuit 2, and process R2 makes the TR1 open circuit, the vibrator circuit that TR2 and TR3 formed just begins the folding that do not stop, the on-off action that is equivalent to platinum point firearm 3, thereby spark is ceaselessly being jumped, form mulitple ignition, till platinum point firearm 3 cuts out.

Wherein, in the present embodiment, the described sparking voltage that is decay carried out in the time that is not less than 100 microseconds, and its upper limit is 3/4 of the required time of combustion process.

Be the result that mulitple ignition device described in the utility model is tested and detected below, wherein:

Testing installation comprises:

1. liberate CA-10C type petrol engine Qingdao engine works

2.D350 hydrodynamometer Changchun automotive research institute

3.LYS-101 type numeral oil consumption meter Tianjin pressure Watch Factory

4. exhaust gas thermometer XCZ-101 0-80 ℃ of Shanghai instrument and meter for automation six factories

5. thermometer WTZ-280 0-120 ℃ of Nanyang instrucment and meter plant

6. katathermometer

7. atmospheric pressure meter Changchun meteorological insturment factory

8.XD-1 digital revmeter Shanghai digital instrument Watch Factory of Xingda

Exerciser and test result are as follows:

1200 rev/mins load-characteristic test after measuring the former machine state of CA-10C petrol engine respectively and installing multiple-spark discharge ignition system described in the utility model additional.

1. former machine state: motor is not done any change, and keeps optimum Working, uses former igniting device.The spark plug gap is the 0.8mm of standard.

2. install the utility model mulitple ignition device additional, motor keeps former machine state, test data.

3. install the utility model mulitple ignition device additional, adjust spark gap and mixture strength; The spark plug gap transfers to 1.1mm by 0.8mm; The carburetor main spindle screws in mouthful 3/4 circle inwards by former machine state.

More than 1200 rev/mins of load-characteristic test curves and oil consumption contrast situation under three kinds of different conditions draw as drawing a conclusion:

Above-mentioned detection shows, mulitple ignition device described in the utility model on petrol engine installation and when using, the test operating point of each correspondence is in various degree oil-saving effect all.After installing mulitple ignition device described in the utility model additional, motor is not done any adjustment, and the highest fuel saving ratio of test is 3.5%, and average fuel saving ratio is 1.79%.After installing mulitple ignition device described in the utility model additional, and motor is done the suitable the highest fuel saving ratio of adjusting the back test is 7.8%, and average fuel saving ratio is 3.86%.

Adopt mulitple ignition device described in the utility model to do another experiment, other are identical with above-mentioned experiment in the experiment, and different is, in this experiment, the described sparking voltage that is decay carried out in the time that is not less than 400 microseconds, and its upper limit is 2/3 of the required time of combustion process.

Multi-spark igniter described in the utility model has following advantages:

1. can effectively improve efficiency of combustion, capable of saving fuel oil;

2. can more obviously reduce pollutant emission;

3. can strengthen the combustion explosion power of mist, improve engine power;

4. because mixture combustion is more complete, can reduce the carbon deposit in the cylinder, thereby improve the use longevity of engine Life;

5. ignition intensity is big, and starting easily. Also can save the electric energy of startup power supply, improve service life.

Claims

1. mulitple ignition device, comprise power switch (1), platinum point firearm (3) and high-tension coil (4), it is characterized in that: it also comprises a vibrator circuit of being made up of triode, diode, resistance and electric capacity (2), one end of this vibrator circuit (2) is connected in the positive pole of high-tension coil (4), and the other end is connected in the negative pole of high-tension coil (4).