CN2453242Y

CN2453242Y - Electronic device for treating motor vehicle tail gas

Info

Publication number: CN2453242Y
Application number: CN 00258030
Authority: CN
Inventors: 徐荣江
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-25
Filing date: 2000-10-25
Publication date: 2001-10-10
Anticipated expiration: 2010-10-25

Abstract

The utility model relates to an electronic tail gas purifier for motor vehicles. The utility model is characterized in that the utility model is formed by a first spiral steel belt cavity, an electric field processor cavity and a second spiral steel belt cavity, which are all communicated in sequence. A copper clad plate inlaid in the electric field processor cavity is introduced to the positive electrode of a pulse direct current high voltage through a binding post. A memory alloy wire fixed in the electric field processor cavity in a longitudinal direction is grounded through a shell body. The utility model uses physical methods to process tail gas of automobiles, resulting in low price and high universality. Without large changes to the existing motor vehicles, the utility model is convenient for installation.

Description

Motor-vehicle tail-gas electronics clarifier

The utility model relates to a kind of motor-vehicle tail-gas controlling device.

At present, the technology for the treatment of vehicle exhaust comprises: the use of electric jet pump, filling unleaded gas and use three former catalyst converters.Traditional treating vehicle exhaust technology can reduce the pollution of motor-vehicle tail-gas to atmospheric environment, and is also just helpful to the gasoline-type car, and diesel vehicle but is stymied by.The existing EGR maturity of technology, the reliability of using of diesel vehicle is all undesirable.Treating tail gas technology of using now and means can not be general in automotive field to the demanded fuel harshness of use in sum, are in the stage of passive improvement basically.

It is one general and be not subjected to the motor-vehicle tail-gas electronics clarifier of fuel limit that the purpose of this utility model is to provide.

The utility model realizes that the above-mentioned purpose key is: it is made up of three approximate cavitys and two metal guide pipes that are communicated with above-mentioned three approximate cavitys; Be respectively equipped with the grid of being made up of helical steel band in the cavity at described two ends, the outer end of above-mentioned each cavity is respectively equipped with into or gives vent to anger and connects mouth; Described air inlet connects mouth and is connected with internal combustion engine air vent, and described outlet nozzle is the tail gas outlet; The cavity at middle part is built-in with copper clad plate, and introduces the positive pole of pulse direct current high-tension electricity through binding post, and this cavity vertically is fixed with a memorial alloy line, and through the housing bonding; Waste gas that internal combustion engine is discharged and sound wave connect mouth, the first helical steel band cavity, middle part electric field treatment device cavity, the second helical steel band cavity through air inlet successively and give vent to anger and connect the mouth discharge.

Motor-vehicle tail-gas electronics clarifier described in the utility model is compared with three traditional former catalyst converters has following advantage: working method adopts physics mode, and valency is low, general, is 1/2nd cost of source catalyst converter; Install this device back noise additional and reduce 3-5db, soot emissions reach the discharging new standard, must not do big change to existing motor vehicle, install additional conveniently, initiatively participate in administering, and form contrary bottleneck effect.

The drawing explanation:

Fig. 1 is the structural representation of motor-vehicle tail-gas electronics clarifier described in the utility model.

Fig. 2 is the cutaway view of motor-vehicle tail-gas electronics clarifier described in the utility model.

Fig. 3 is the A-A cutaway view of motor-vehicle tail-gas electronics clarifier described in the utility model.

Fig. 4 is the structural representation of motor-vehicle tail-gas electronics clarifier described in the utility model middle part electric field treatment device.

Fig. 5 is the cross-sectional view of motor-vehicle tail-gas electronics clarifier described in the utility model middle part electric field treatment device.

Fig. 6 is a motor-vehicle tail-gas electronics clarifier pulse direct current high-tension circuit block diagram described in the utility model.

Embodiment of the present utility model sees accompanying drawing: it is made up of three cavity body arranged side by side, in described three cavity body arranged side by side, cavity A left side is suction nozzle (8), cavity A right side is connected with cavity B right side by gas metal guide pipe (2), cavity B passes on left gas metal guide pipe (6) and is connected with the left side of cavity C, cavity C right-hand member is outlet nozzle (3), (4), (7) be stay rod in a pair, (1) is hull plate, (5) be outer terminal, (9) be copper clad plate, (10) be internal wiring terminal, (11) be the epoxy resin pipe, (12) are second helical steel bands, and (13) are internal wiring terminals, (14) be first helical steel band, (15) be electric field high-voltage connection metal cap, (16) are electric field high-voltage connection ceramic insulation posts, and (17) connect high pressure memorial alloy line in being.

Gas sound mixture buffering, decay, the precipitation of the grid that first helical steel band is formed among the figure to entering, unburned is gel completely, and the flue dust that the big quality of particle is heavy etc. is blocked at this.According to the characteristic that sound wave is propagated, grid is to sound wave expansion, compression, further expansion, recompression, and so circulation finally reaches to the purpose of decay.

The electric field treatment device is that middle part cavity B handles ionized gas by the tubulose of high strength, high insulation and the electric treatment field that the memorial alloy line is formed, decomposition flue dust, waste gas among the figure.The marriage chain of the hydrocarbon in the tail gas is broken up by high voltage electric field.According to the Cotterell principle, high voltage electric field has the effect of absorption, neutralization, separation to flue dust.Less soot dust granule is carbonized burning, discharges with uncertain shape.Processed waste gas is introduced the de-noising position that second helical steel band is formed through second guide wire, attenuation of the second kind sound wave, and separating suspension, the gas of ionization is discharged from the screen pack of the mouth of pipe, enters atmosphere, finishes processing.

Above-mentioned input and output gas connects mouth and is stamped to form by sheet metal, is linked to be with hull plate spot welding, and first helical steel band stretches after unwrapping wire is sheared, and the both sides spot welding of one-tenth spring shape places two of hull plate; The built-in copper clad plate of the electric treatment device of cavity B is through (+) utmost point of binding post introducing high-tension electricity, and the memorial alloy line is through housing bonding (one).Two metal guide pipes are communicated as one three approximate cavitys.Electric field treatment device integral body can select for use corrosion resistant plate, band etc. rolling, cold pressing, butt welding; Gas conduit is selected megohmite insulant for use; The electric treatment device is by epoxy resin such as mica powder, quartz sand, sheet metal, form behind mold, tread flaking, finish turning; The memorial alloy line selection loose type of normal temperature; The electric field treatment device because high temperature of living in, shake by force, environment such as corrosion, the raw material of intending selecting for use must have good quality; The electric field treatment device of lorry, engineering vehicle and car because of separately structure, to lay the space different.Stretching, as to prolong car type electric field treatment device just becomes the processor of lorry, engineering truck; Compression, the microminiaturized processor that just can become motorcycle.

The sensor of this device circuit part picks up the operating mode of engine.Searching of signal can be the consumption of fuel, the soakage of air, the height of engine speed, the discharge rate of tail gas, the igniting number of times what etc. the aspect.These signal great majority are the output of analog quantity, just must add one-level V/F conversion to subordinate's circuit, and analog signal conversion is become data signal.Can only add opto-electronic conversion to diesel vehicle, or the sensor of Hall type switching value.The intelligent inverter of being made up of intelligent ECU and pulse width modulator and high-power V metal-oxide-semiconductor, after sensor input signal differentiated, starting CPU promoted the VMOS pipe and causes transformer, after rectification, was fed into the electric field treatment device of next stage in the secondary high pressure of transformer.The output signal of ECU is that the variation with input signal changes, and just what of output pulses ECU determine according to what of tail, and the break-make mouth of control VMOS pipe provides required voltage energy.Pulse-modulator has soft start and starts synchronously.The damage that the surge current that soft start produces in the time of can avoiding system works causes device, startup have synchronously just realized the full intellectuality that exhaust emissions is administered.

Sensor is more to the signal that gasoline-type can pick up, and diesel-type is not owing to there is electric energy to participate in, and picking up of signal is more difficult, can only install active optoelectronic switch additional, or peels off signal from the tachometer of machine itself.To analog quantity output, must add one-level A/D conversion.Intelligence ECU part technical parameter; Oscillator central task frequency: 50KHZ ± 15KHZ; Dutycycle 50% ↓; High pressure generator output: 50KV ± 10KV.

Now the rotating speed with internal combustion engine is an example, startup, idling section, N≤K, CPU machine and inverter are asynchronous, and waveform generator oscillation center frequency moves down, and works in about 35--40KHZ, export to inverter, inverter produces high pressure and introduce the electrode processor after rectification, finishes a work period.At moderate duty, full load, accelerating sections, N＞K, CPU stop the drive waveforms generator, and directly FD feed is given the synchronous end of inverter chip, and inverter works in about 50KHZ, produces high pressure and export to the electric field treatment device after rectification.Supply convertor carries out conversion to the 12V or the 24V working power of input.

Claims

1. motor-vehicle tail-gas electronics clarifier is characterized in that: it is made up of three approximate cavitys and two metal guide pipes that are communicated with above-mentioned three approximate cavitys; Be respectively equipped with the grid of being made up of helical steel band in the cavity at described two ends, the outer end of above-mentioned each cavity is respectively equipped with into or gives vent to anger and connects mouth; Described air inlet connects mouth and is connected with internal combustion engine air vent, and described outlet nozzle is the tail gas outlet; The cavity at middle part is built-in with copper clad plate, and introduces the positive pole of pulse direct current high-tension electricity through binding post, and this cavity vertically is fixed with a memorial alloy line, and through the housing bonding; Waste gas that internal combustion engine is discharged and sound wave connect mouth, the first helical steel band cavity, middle part electric field treatment device cavity, the second helical steel band cavity through air inlet successively and give vent to anger and connect the mouth discharge.