Device for measuring temperature and/or heating and its application in cellular structures, particularly buildings - media catalyst

 

(57) Abstract:

Usage: for temperature measurements in a cellular phone, in particular, carriers of the catalyst. The inventive equally between structured sheets of metal foil formed in them convexity is the temperature sensor or the heating conductor. When using other semi-structured sheets formed metal housing - catalyst carrier. Case - catalyst carrier is located in the tubular shell. 13. C.p. f-crystals, 8 ill.

The present invention relates to a device designed to measure temperature and/or heating of the metal honeycomb structure, in particular, case-catalyst carrier for exhaust of internal combustion engines.

Due to the fact that all over the world stricter requirements in respect of emissions for internal combustion engines, especially for cars that are increasingly catalytic convectors for neutralization of exhaust gases. It is necessary to adjust the combustion process in the engine, depending on many parameters of the measurement, also pin their joint regulation. At the same time it is necessary to make measurements of temperature in the exhaust system and/or in the catalytic convector.

The basic design of catalytic convector disclosed, for example, in the application WO 89/07488, and, in particular, describes a metal mesh design, consisting of a set of partially structured layers of metal sheets, one or more of which are reinforced, and these metal layers made of two or more identical structured and adjacent to each other of the sheets.

Also from the application WO 90/03220 know different implementations of cellular structures of the structured metal sheets, in particular, alternating smooth and corrugated sheets. From the application WO 89/10471 known, in addition, electrical heating such cellular structures.

And finally, in another unpublished earlier international application PCT/EP89/00311 describes the various features embedded temperature sensors in metal mesh design for direct measurement of its temperature.

The problem of measurement in the exhaust gas and in particular in the cavity catalytic convector is that o and therefore, alloys, usually suitable for the manufacture of temperature sensors and heating elements, cannot be applied here unprotected.

Another problem is that the flow of exhaust gas in the system, its removal is not evenly distributed in the cross section of the exhaust system temperature profile, resulting in spot metering temperature, as a rule, does not always gives a fairly correct picture. Therefore, as mentioned in the application PCT/EP89/00311, to make measurement possible linearly on the most significant cross-section of the exhaust system.

The present invention is a device for measuring temperature and/or heat, which can be used primarily in the cavity of catalytic converters, which can be any of the materials without the necessity of accounting and corrosion resistance.

To solve this problem is a device for measuring temperature and/or electric heating, containing

a) at least two layers, in particular, the upper and lower layer, located mainly with a tight fit to each other and consisting of the same dream from both leaves;

in one temperature sensor and/or the heating element is held in the cavity (38), and accordingly his leash in the cavity.

In this device the top and bottom layers consist of heat-resistant corrosion-resistant material and protects the actual temperature sensor and its connections. This invention is equally suitable for both sensors, performing spot measurements, eyeliner which must be protected, and sensor measurements along the line or plane, as well as for the heating elements, which must be protected in its entirety. Usually the temperature sensor consists of a wire or foil with an electric resistance, made primarily of Nickel alloys. Often find the use of a so-called measuring conductors with a protective shell in which the wire has resistance, embedded in the layer of electrically insulating ceramic powder, is placed in the shell in the form of a metal tube. For such measuring conductors with protective sheath is particularly suitable for this invention, however, thanks to the presence of protecting the upper and lower layer, it is also possible to seal the measuring conductor directly between e hnim layer so that it is only necessary to lay a conductive core and connect it, while another connection is usually through its upper contact layer to the "masses". However, in principle, the invention is also suitable for twin-core or even multi-strand conductors, especially for U-shaped application in a metal tube conductors.

As for the top and bottom layer are mainly used in very thin metal foil having a thickness of from 0.02 to 0.1 mm for laying electric wires, temperature sensors or connections, hereinafter referred to as a measuring guide, to perform the cavity by forming bumps on both sheets so that the required deformation of the sheets was not too large. However, in principle, it is also possible to create a cavity for the formation of bulges in only one of both surrounding the conductor sheets. The device according to the present invention can be performed in sheets with virtually any structuring, however, it is most preferable if the sheets have shirring with a defined height of the ridge, and the measuring conductor is laid across the ridges. Thus for p is m, what they do not change the height of the ridge, and always adhere to the inner sides of the ridges. Such a device can, for example, be manufactured in such a way that the measuring conductor swallowed between two metal foils by means of two interacting toothed rollers, in particular, with involute gearing. Both roller engaged shirring, outside circumference provided with a groove depth which approximately corresponds to the diameter closed up Explorer. This groove plays a role only for the deepening of teeth hariraya rolls, which are then formed into the inner side of the ridges. Thus, the conductor can be zavalova so that it always passes through the inner side of the ridges and thereby does not affect the height of the ridges, making ridges on both sides of the corrugation is not given opportunity to see the measurement guide. In the further execution of the metallic honeycomb structure is crucial.

Although in principle it is possible to Cavalcanti measuring conductor and between the smooth foils, for example, using a pair of rollers in which one roller is made of elastic material, but not every smooth Etwah may require a corresponding groove in the adjacent structured sheets, and smooth sheet with the bulge is more rigid than the usual smooth sheet. Conversely, corrugated sheet, measurement guide is very elastic, on its external lines fit cannot be distinguished from conventional corrugated sheets, and due to the presence of ridges in them can be longer temperature sensor or the heating element in comparison with a smooth sheet, which considerably increases the accuracy of the measurement or Pets any resistance of the heating conductor.

To increase service life in corrosive environments it is often important to have a measuring conductor is sealed between the two sheets. For this purpose it is expedient tightly connect the layers to each other at least at the edges, preferably by means of soldering. This can be achieved first of all in case along the edges of the sheets simultaneously with the measuring guide to Cavalcanti thin, for example, self-adhesive solder film to make in the future at a later manufacturing operations to be brazed. Needless to say, the top layer can be made by folding only one foil, so that remains the governmental sheets are formed in a honeycomb structure, having multiple channels, which may leak fluid that is later sealing together of the leaves on the ends, resulting in just this one process can perform the sealing of the two sheets that protect the measuring conductor. However, it can also improve the quality and integrity through the use of additional simultaneously zahlcovany solder film. As further shown in the drawing, particularly preferably, if the device for measuring temperature by itself or together with other partially structured sheet is formed into a honeycomb structure, which serves as a carrier for the catalytically active material. In this case, the temperature sensor measures the temperature of the exhaust gas in an internal combustion engine, and the wall temperature of the catalytic convector, which increases the reliability of temperature measurement in relation to the determination of the nature of the operation.

Such honeycomb structure surrounded by a tubular sheath, through which, naturally, should be the measuring conductor. According to the invention this can be done through open the tion layer has an elongated mounting plate, which together with closed up in her measuring conductor may act out through a hole that has a big influence on the manufacturing process.

It should be noted that the device according to the invention, although especially suitable for measuring temperature or heat in the metal honeycomb structure, but is not limited to these applications. In principle, such devices may be used in other places.

The figures shown examples in which the invention however is not limited to,

Fig. 1 shows the measuring conductor in a protective shell, rolled between two smooth foils;

Fig. 2 measurement guide, rolled between two corrugated foils;

Fig. 3, the measuring guide in the form of a film, rolled between the smooth sheets,

Fig. 4, the stack of sheets for manufacturing the honeycomb structure with padded between the device for measuring temperature;

Fig. 5 of the honeycomb structure obtained from the stack according to Fig. 4;

Fig. 6 and 7 different ways to strip measuring conductors between two metal foils;

Fig. 8 schematically shows the arrangement of the bumps in americacom the image cross-section to smooth the top sheet 11, smooth the bottom sheet 12, each of which has a concavity 13. In the cavity formed by the protuberances 13 is a measuring guide in a protective sheath consisting of a tubular metal shell 15, the insulating layer 16 and the measuring conductor 17. The edges of the top sheet 11 and the lower sheet 12 is hermetically connected to each other rations 14 so that they fully protect the measuring guide in the shell 15, 16, 17 of the gases causing corrosion.

In Fig. 2 shows a corrugated top sheet 21, corrugated bottom sheet 22, each of which also has a convexity 23, forming a cavity. This cavity is sealed measuring conductor 27, which is surrounded by an insulating layer 26 from the surrounding leaves. And here the top sheet 21 and the lower sheet 22 is hermetically connected along their edges pike 24.

In Fig. 3 shows another variant, namely, strip measuring film 37 between the upper sheet 31. Relatively flat convexity 33 form a planar cavity 38 in which is located a measuring tape 37, embedded between two insulating layers 36, for example, of fibrous material. Edges are similarly sealed solder connection 34.

In all embodiments shown in the examples of withmetal in the device two or more spaced at a distance from each other and measuring guide.

As shown in Fig. 4 and 5, smooth or structured foil embedded in them measuring conductors can be easily included in one cycle of manufacture of catalytic metal catalysts with the supporting structures. Such a manufacturing process, including for sheets of different thickness, already described in the application WO 89/07488 and mentioned in her publications, and therefore it should only refer to the presence of singularities arising in connection with temperature sensors. In Fig. 4 shows a stack of alternating layers of smooth and corrugated sheets 2 sheets 2, within which is located the upper layer 41 and the lower layer 42 is placed between the measuring conductors 45, 46, 47 in a protective sheath. In this implementation includes an elongated mounting plate 48 that extends laterally from the stack 40. This mounting plate 48 between the two protuberances 43 is also measuring conductor 45, 46, 47 in a protective sheath that is protruding from the mounting plate 48 to connect in the future or to accommodate connection of the connector. As is known from the prior art, the entire stack 40 can bend a loop in two opposite directions around the two features 50 of the connecting plate 48 may, as shown in Fig. 5, to occupy a position in which it protrudes out of the opening 59, available in a tubular sheath 50. While measuring the conductor 45, 46, 47 in a protective sheath until the exit holes 59 and also even on a protected segment surrounding the mounting plate 48, through which reliably ensures an airtight conclusion of the conductor to the outside. Mounting plate 48 may be located, for example, soldered or welded connection tube connecting connector, which forms a very reliable connection. For this design, it does not matter whether the device for measuring sensor of the smooth or corrugated sheets, as it does not affect the manufacturing process. In the rest of the honeycomb structure does not differ in its properties and its channels 5 for flowing fluid from known structures. In particular, when the sealing of the honeycomb structure on the ends of the upper layer 41 and the lower layer 42 with the connection 44 is hermetically sealed against the ingress of gas which causes corrosion. This cannot be achieved in any place of the measuring conductor in a protective sheath. Of course, there is no need to apply a measure measuring conductor 47 in the described device. Exactly the same options can be used, as shown in Fig. 2 and 3.

In Fig. 6 schematically shows that the measuring conduit or liner 67 does not need to be rectilinearly between a top plate 61 and bottom sheet 62. In principle, due to rolling is possible to provide virtually any passage. And even if it is desirable to make point measurements in some places, it is possible to apply the device according to the invention. thermocouple generates a thermal stress, can have, for example, point location and connect through the measuring conduit 67. Thus, in principle, it is also possible to attach the upper and lower sheet to the contact 68 with the aid of the measuring conductor of the respective other metal, resulting in thermal stress. Similar is the construction in which the conductor with a resistance in place 68 contact is connected to the top sheet 61 or the lower sheet 62 as "mass".

According Fig. 7 measuring conduit 77 may be laid, of course, U-shape between the top sheet 71 and the lower sheet 72, so that its both ends can be displayed in different places. This and many other options realizatsii options as described in the application PCT/EP89/00311 that may be referenced, but with the caveat that you can not measure the temperature of the gas in the honeycomb structure, and the wall temperature, preferably.

And, finally, in Fig. 8 again shown schematically in longitudinal section, the passage of the protuberances 83 in the case adjacent to each other corrugated sheets 81 and 82 between which is not shown, the measuring conductor. As shown by the dashed line, the convexity always lie with the inner side of the ridges, making the bumps do not affect the height h of the ridges. Convexity 83 how would intersect the sides of the ridges and are located on the inner sides.

This invention is primarily suitable for embedded devices temperature control of the catalytic convector and in combination with other measurement systems may be used to adjust the engine to reduce emissions and to monitor the performance of catalytic convector. In addition, the device according to the invention can also be used for electric heating, for example, cellular structures, especially if you have to heat when the housing of the exhaust system of internal combustion engines, contains a device for measuring temperature and/or heating of the walls of the shell-catalyst carrier, and the device is characterized in that it comprises at least two sheets, namely the top sheet(11, 21, 31, 41, 61, 71) and the bottom sheet(12, 22, 32, 42, 62, 72, 82), situated on tight to each other and consisting of identically structured metal foils of a thickness of from 0.02 to 0.1 mm, at least one cavity (38) between the two sheets(11, 12, 21, 22, 31, 32, 41, 42, 61, 62, 71, 72, 81, 82), formed along the leaves of the bulge(13, 23, 33, 43, 83) at least one of the two sheets(11, 12, 21, 22, 31, 32, 41, 42, 61, 62, 71, 72, 81, 82), at least one temperature sensor(15, 16, 17, 27, 37, 45, 46, 67, 77) and/or the heating element is held in the cavity (38) or liner (67) in the cavity (38).

2. Case carrier under item 1, characterized in that the cavity (38) made globes(13, 23, 33, 43, 83) in both sheets(11, 12, 21, 22, 31, 32, 41, 42, 61, 62, 71, 72, 81, 82).

3. Case carrier under item 1 or 2, characterized in that the sheets (21, 22, 81, 82) have combs with a certain height h, and the sensor (27) for measuring the temperatures of, respectively, the heating element is mainly transversely to the ridges.

4. Case carrier under item 3, characterized in that wyuna.

5. The body is a carrier of one of the PP. 1 to 4, characterized in that it is made by rolling sensor(17, 27, 37, 47, 67, 77) temperature, respectively, of the heating element between two metal foils.

6. The body is a carrier of one of the PP. 1 to 5, characterized in that the temperature sensor, respectively, the heating element is planar (37) or linear(17, 27, 47, 67, 77) conductor, the first conductor or film with resistance.

7. Case carrier under item 6, characterized in that the sensor (67), respectively, the heating conductor is electrically connected to an end with the place (68) contact the upper and/or lower sheet (61, 62).

8. Case carrier under item 6, characterized in that the sensor(15, 16, 17, 45, 46, 47) a measuring guide in a protective sheath.

9. The body is a carrier of one of the PP. 1 to 5, characterized in that the sensor is measuring point sensor (68), for example a thermocouple, eyeliner (67) which passes between the plates (61, 62).

10. The body is a carrier of one of the PP. 1 to 9, characterized in that the two sheet(11, 12, 21, 22, 31, 32, 41, 42, 61, 62, 71, 72, 81, 82) tightly connected, preferably by soldering (14, 24, 34, 44) with each other at least along its edge the element is provided, accordingly, his eyeliner (67) are electrically isolated by insulating layers (23, 36) from the top of the sheet (21, 31, 61, 71) and the lower sheet(22, 32, 62, 72).

12. The body is a carrier of one of the PP. 1 to 11, characterized in that the sheets(11, 12, 21, 22, 31, 32, 41, 42, 61, 62, 71, 72, 81, 82) made of heat-resistant and corrosion-resistant steel, primarily based alloy of iron, chromium, aluminum.

13. The body is a carrier of one of the PP. 1 to 12, characterized in that the housing-catalyst carrier is surrounded by a tubular sheath (50) having at least one hole (59), through which is expelled sensor(17, 27, 37, 47, 67, 77) temperature or heating conductor, respectively, the eyeliner.

14. Housing-media on p. 13, characterized in that the top plate (41) and/or the lower sheet (42) have an elongated mounting plate (48), which together with closed up in her sensor (47) temperature or a heating conductor according to its liner are removed through the opening (49) on the outside.

 

Same patents:

Cell frame // 2077383
The invention relates to a cellular skeleton, which is subjected to electric heating, non-uniform distribution of heat generation

The invention relates to the decontamination of exhaust gases of an internal combustion engine, and more specifically to the disposal of their toxic components by catalytic conversion

The invention relates to the field of engineering, specifically to the engine, and can be used in devices for water injection into the engine cylinder

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: invention can be used in engine exhaust system. Proposed device for processing of exhaust gases by selective catalytic reduction of nitrogen oxides in exhaust gases formed when engine operates on lean mixtures includes at least one catalyst with catalytically active component for selective catalytic reduction (components for scr) and at least one accumulating component for nitrogen oxides (components for NO). Device contains also oxidizing catalyst arranged before selective catalytic reduction catalyst and accumulating component for nitrogen oxides is at least one compound of element chosen from row including alkaline metals, alkaline-earth metals and cerium. Method of removal of nitrogen oxides from exhaust gases is provided.

EFFECT: reduced concentration of nitrogen oxides in exhaust gases formed at operation on lean mixtures.

18 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: proposed inventions can be used in exhaust systems and covers the method and device to adjust adding reducer at the point upstream higher than that the catalyst is located in the ICE exhaust manifold at. In compliance with the proposed invention, the reducer addition into inlet pipeline is adjusted subject to the results of comparison between the actual calculated accumulated amount (A1) and calculated preset accumulated amount (A2). The invention covers also a computer hardware unit incorporating a data carrier adapted for reading off by an electronic control unit and store computer program therein designed to force the said control unit to realise aforesaid method.

EFFECT: efficient method and device to adjust adding reducer at point upstream higher than that catalyst is located in ICE exhaust manifold at.

25 cl, 9 dwg

FIELD: engines and pumps.

SUBSTANCE: Mixing device preferably comprises inlet urea channel and inlet gas channel for supply of accordingly urea and gas into mixing chamber of mixing device and outlet channel for discharge of urea and gas mixture from mixing chamber, at that these inlet channels and outlet channel may preferably be extended to the side of flow and preferably pass into mixing chamber, and outlet channel preferably starts from mixing chamber. Device comprises valve in inlet channel that provides for removal of crystals on channel surfaces, at that valve is arranged with the possibility to execute reciprocal motion. Valve comprises piston with spring facility and flat element with opening.

EFFECT: such arrangement reduces deposit of urea crystals on surfaces of inlet channel.

22 cl, 16 dwg

FIELD: engines and pumps.

SUBSTANCE: invention can be used in ICE exhaust systems. Proposed assembly serves to admix liquid reducer into waste gas flow and comprises proportioning pump (2). Inlet of aforesaid pump is furnished with element connecting it to reducer tank (4), while pump outlet is connected with pressure line (16). Return line (10) connects pump outlet with aforesaid reducer tank (4). Pressure tank (16) accommodates check valve (20) to response to fluid medium pressure generated by proportioning pump (2). Return line (10) communicates with pressure line (16) and accommodates shut-off valve (12) to shut off return line selectively.

EFFECT: simplified design.

13 cl, 7 dwg

FIELD: automotive industry.

SUBSTANCE: invention relates to automotive industry. Proposed device comprises controller to shift automatic gearbox completely in neutral. Proposed method consists in that forced gearbox shifting in neutral is carried out provided preset conditions are satisfied. Note here that said conditions comprise verifying automatic gearbox completely automatic gearshift position. Catalytic neutraliser temperature is increased when amount of exhaust particles accumulated in catalytic neutraliser exceeds first threshold value. If, in regulation of catalytic neutraliser heating, the amount of exhaust particles accumulated in said neutraliser exceeds second threshold value, forced shifting of automatic gearbox into completely neutral is inhibited.

EFFECT: recovery of efficient operation of catalytic neutraliser and fuel saving.

14 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed ICE exhaust gas purifier is designed as SOx catalyst-trap to entrap sulphur oxides of exhaust gases in the engine exhaust pipe. One of alkaline and alkali-earth metals is diffused into catalyst-trap. In engine operation, keeping the SOx catalyst-trap temperature, whereat nitrate of at least one of alkaline and alkali-earth metals changes into molten state, stimulates nitrate displacement and its coagulation effect. Note here that nitrate in SOx catalyst-trap displaces and coagulates on SOx catalyst-trap surface to remove SOx, and, at the same time, to recover the degree of SOx entrapping.

EFFECT: higher degree of SOx entrapping.

24 cl, 23 dwg

FIELD: chemistry.

SUBSTANCE: method of decomposing nitrogen dioxide (NO2) to nitrogen monoxide (NO) in the exhaust gas of an internal combustion engine working on a rare fuel mixture involves a stage for bringing into contact with an acidic metal oxide selected from a group consisting of zeolites, titanium dioxide doped with tungsten, silica-titanium dioxide, zirconium dioxide-titanium dioxide, gamma-alumina, amorphous silica-alumina and a mixture of any two or more of these oxides, which optionally serve as a carrier for metal or metal compound, where the metal is selected from a group consisting of rhodium, palladium, iron, copper and mixtures of any two or more metals, with a gaseous mixture containing exhaust gas, control of composition of the gaseous mixture, injection of hydrocarbons into the gaseous mixture at a rate which varies during the operation cycle such that on average, the ratio Cl hydrocarbon: nitrogen oxides (CI HC:NOx) of the gaseous mixture in contact with the acidic metal oxide ranges from 0.1 to 1.5 and release of the exhaust gas directly into the atmosphere, optionally after the gaseous mixture comes into contact with a hydrocarbon oxidation catalyst, where the hydrocarbons are selected from a group consisting of diesel fuel, petrol, fuel based on liquefied gas and liquefied petroleum gas. The exhaust system for the internal combustion engine working on a rare fuel mixture, which contains a catalyst for decomposition of nitrogen dioxide (NO2) to nitrogen monoxide (NO) with a hydrocarbon as a reducing agent, and apparatus for controlling composition of the exhaust gas by injecting a hydrocarbon at a rate which varies during the operation cycle such that on average, the ratio Cl hydrocarbon: nitrogen oxides (CI HC:NOx) in the exhaust gas in contact with the catalyst ranges from 0.1 to 1.5, in which the catalyst consists of an acidic metal oxide selected from a group consisting of zeolites, titanium dioxide doped with tungsten, silica-titanium dioxide, zirconium dioxide-titanium dioxide, gamma-alumina, amorphous silica-alumina and a mixture of any two or more oxides, which optionally serve as a carrier for the metal or metal compound. The metal is selected from a group consisting of rhodium, palladium, iron, copper and mixtures of any two or more metals, in which gas released from the catalyst is directly released into the atmosphere optionally through a hydrocarbon oxidation catalyst. Hydrocarbons are selected from a group consisting diesel fuel, petrol, fuel based on liquefied gas and liquid petroleum gas. The device has a diesel engine and the above described exhaust system features. A carriage vehicle, such as one used in mines, has the above described device.

EFFECT: invention reduces exhaust gas emissions into the atmosphere in confined spaces in order to improve health and safety of miners.

41 cl, 1 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to a catalyst for cleaning exhaust gases, a method of regenerating such a catalyst, as well as a device and a method of cleaning exhaust gases using the said catalyst. The invention describes a catalyst for cleaning exhaust gases where a noble metal is attached to a metal oxide support. In an oxidative atmosphere, the noble metal on the surface of the support is in a high oxidation state and the noble metal is bonded to the cation of the support though an oxygen atom on the surface of the support with formation of a surface oxide layer. In a reductive atmosphere, the noble metal on the surface of the support is metallic state and the amount of noble metal open on the surface of the support, measured through CO chemisorption, is equal to or greater than 10 at % of the total amount of noble metal attached to the support. Described is a method of regenerating a catalyst for cleaning exhaust gases in which the above described catalyst for cleaning exhaust gases undergoes oxidative treatment by heating in an oxidative atmosphere which contains oxygen, and reduction treatment. Described also are devices for cleaning exhaust gases (versions) and a method of cleaning exhaust gases, involving cleaning exhaust gases by bringing the exhaust gases into contact with the above described catalyst.

EFFECT: prevention of reduction of catalyst activity.

18 cl, 11 tbl, 46 ex, 10 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to method of reactivating thermally aged catalytic neutralisers-accumulators of nitrogen oxides containing compounds accumulating nitrogen oxides on carrier material containing cerium oxide. Invention covers the method of reactivating thermally aged catalytic neutraliser-accumulator of nitrogen oxide that comprises main compounds of strontium or barium, or both, on carrier material containing cerium oxide and contains compounds of strontium and/or barium formed due to thermal ageing with carrier material. Note here that compounds of strontium and/or barium with carrier material are decomposed by treating them with gas mix at 300C to 500C, said gas mix containing nitrogen oxide in amount of 0.05 to 5 % by volume, water steam in amount of 5 to 15 % by volume and carbon dioxide in amount of 0 to 20 % by volume. Proposed method (version) comprises dismantling, during scheduled servicing, of catalytic neutraliser-accumulator of nitrogen oxides that makes an integral part of exhaust system incorporated with vehicle driven by engine running on depleted fuel and treatment for 0.1 to 5 h by gas mix containing nitrogen oxides in amount of 35 % by volume, oxygen in amount of 5 to 50% by volume, water steam in amount of 5 to 30 % by volume, carbon dioxide in amount of 0 to 20 % by volume, and, not obligatorily, nitrogen in amount of approximating to 100 % by volume.

EFFECT: partial reactivation of catalytic neutraliser-accumulator of nitrogen oxides after its thermal damage.

8 cl, 3 ex, 5 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed system comprises tank, receiver (spraying nozzle), continuous flow device incorporating meter, controlled shut-off valve arranged upstream of said receiver and downstream of continuous flow device shut-off valve control device that performs control functions in PDM mode.

EFFECT: accurate proportioning.

34 cl, 13 dwg

Up!