CN204663632U - Diesel engine DPF low-temp recovery igniter - Google Patents

Abstract

The utility model relates to a kind of Diesel engine DPF low-temp recovery igniter, fire rod two ends in fire rod assembly are arranged in outside thermal storage device assembly thermal store inner sheath two ends thermal store top cover and thermal store bottom, in loudspeaker conduit, fire rod and thermal store bottom atomizer enclose within it by straight length end, tapered air combustion tube inwall by air conducting dispersion plate air-flow in a disguised form enclose with loudspeaker conduit in straight length and the clamping of loudspeaker section and tapered air combustion tube front port and thermal store bottom touch mutually, rear port and the outer pillar rear end inwall clamping of cover taper tube thereon, the outer pillar of taper tube front end is equipped with taper tube end cap, loudspeaker air heat storage tube osculum end in fluid radome fairing joins with the outer pillar rear port of taper tube and air flow guiding leaf touches mutually with cover igniter fan blade oversheath inwall thereon, igniter fan blade is relative with fluid radome fairing and be positioned at igniter fan blade oversheath, igniter end face of flange in igniter fan blade oversheath front end and fire rod assembly joins.

Description

Diesel engine DPF low-temp recovery igniter

Technical field

The utility model relates to one can make DPF trap in regenerative process, equal permanent regeneration can be realized, the Diesel engine DPF low-temp recovery igniter of the false picture regeneration of DPF trap of avoiding local regeneration to bring, belongs to diesel motor exhaust regeneration low-temperature igniter and manufactures field.

Background technology

The all CN 103104314A of the applicant, title " a kind of diesel engine exhaust aftertreatment device pre-heating temperature elevation device ", plug be enclosed within on heating rod and one end of heating rod exposed at mandrel outer and form high temperature ignition head, plug two ends are connected with diesel oil gasification chamber two ends end cap seal, heat storage is enclosed within on plug and is positioned at diesel oil gasification chamber, combustion chamber one end is connected with diesel oil gasification chamber and covers on high temperature ignition head, the external spray bar portion on the wall of combustion chamber and in petroleum pipeline of petroleum pipeline is through diesel oil gasification chamber end cap and be positioned at diesel oil gasification chamber, be positioned on the end cap of diesel oil gasification chamber of heating rod one end and have oil gas nozzle.

Utility model content

Purpose of design: can make DPF trap in regenerative process, can realize equal permanent regeneration, avoids the Diesel engine DPF low-temp recovery igniter that the DPF trap false picture of local regeneration institute with industry regenerates

Design: in order to realize above-mentioned purpose of design. The utility model design one is arranged in diesel engine (car) blast pipe, for under various working conditions, the delivery temperature of diesel engine (car) can be improved rapidly, make delivery temperature that from about 50 DEG C, more than 600 DEG C can be risen within a few minutes (3-5 minute), thus reach the object of regenerate particulate trap (DPF). 1, fire rod lead-in wire adopts the design of multiply pure nickel line or nickel-coated wire, is one of technical characteristic of the present utility model. The object of design is like this: because nickel wire or nickel-coated wire have higher resistivity, surface oxidation-resistant is good, temperature rank is high, and at high temperature there is higher intensity, there are good processing characteristics and solderability, long service life, it can provide the power supply of DC24V, DC12V, AC220/50hz, AC110/60HZ safely and reliably to heating rod, and the insulating barrier that is enclosed within multiply pure nickel line or nickel-coated wire can resistance to more than 500 DEG C high temperature, ensure that multiply pure nickel line or nickel-coated wire reliable conductive at high operating temperatures. 2, adopting the design of igniter insulating plug for fixing point lighted torch lead-in wire, is two of technical characteristic of the present utility model. The object of design is like this: because igniter insulating plug adopts aluminum silicate ceramic device; and aluminum silicate ceramic device not only has utmost point low heat conductivity; and the excellent heat endurance of tool; use it for fixing point lighted torch lead-in wire time, playing again to fire rod lead-in wire insulate, the protective effect such as heat insulation. 3, the design of igniter flange is three of technical characteristic of the present utility model. The object of design is like this: because the application's igniter flange is in structural design, igniter flange surrounding is provided with fixing hole ear, sidepiece has fire rod assembly installation cavity, valve installing hole, oil nozzle installing hole, and be provided with support reinforcing ledges at igniter flange inner chamber, thus igniter can not only be fixed, be connected on diesel engine exhaust by it, and oil nozzle fixture, tracheae mouth locking member, igniter insulating plug, fire rod coaming plate can be installed, and thermal store oversheath. 4, adopting the design of refractory ceramics sealant sealing fixing point lighted torch lead-in wire and fire rod, is four of technical characteristic of the present utility model. The object of design is like this: because refractory ceramics glue is neutral organosilicon material, adhesive strength is high, and it not only has shock-absorbing cushioning effect and good high and low temperature resistance, and its temperature resistant range is-60-300 DEG C, and ageing-resistant performance excellence. The application uses it for fixing point lighted torch, fire rod lead-in wire time, and insulation and heat insulation effect are played to fire rod lead-in wire. 5, the design of fire rod coaming plate is five of technical characteristic of the present utility model. The object of design is like this: it had both serve the protection to fire rod lead-in wire, fire rod, and fluid sealant can be carried again. 6, the design of heat accumulation sheet is six of technical characteristic of the present utility model. The object of design is like this: because heat accumulation sheet surrounding in structural design is heat radiation rack structure, when after fire rod heating power, the heat that it can absorption point lighted torch produces, the heat of absorption can be distributed again, fuel oil can be guided again according to specific path flows, achieve the object of thermal store high-efficiency gasification diesel oil simultaneously. 7, the design of fire rod insulating barrier is seven of technical characteristic of the present utility model. The object of design is like this: because the application's thermal insulation layer is made up of boron nitride etc., and that boron nitride has is high temperature resistant, high pressure resistant, the feature of insulating properties, good heat dissipation, therefore it can not only convert the heat energy that igniter needs to fire rod electric energy, and can use as ignition trigger device simultaneously. 8, the design of air conducting dispersion plate is eight of technical characteristic of the present utility model. The object of design is like this: because circumferencial direction on the plate face of air conducting dispersion plate has multiple air guide holes, this air guide hole by fresh air through row water conservancy diversion and dispersion, the oxygen required for igniter fire is finally provided. 9, the design of tapered air combustion tube: be nine of technical characteristic of the present utility model. The object of design is like this: because tapered air combustion tube is stainless steel reduced pipe, pipe is provided with air inflow openings, fresh air can be guided to enter combustion chamber for this air inflow openings and air-flow in a disguised form encloses, loudspeaker air heat storage tube, flow rotation fan blade form in igniter combustion chamber jointly, guides fuel oil to press specific direction Thorough combustion. 10, the design of taper tube oversheath is ten of technical characteristic of the present utility model. The object of design is like this: taper tube oversheath and tapered air combustion tube, taper tube end cap composition fresh air heating chamber, for heating to fresh air. 11, the design of loudspeaker conduit is technical characteristic 11 of the present utility model. The object of design is like this: this loudspeaker conduit can be to protect fire rod not by fresh air blast-cold or blowing-out, also plays the guide functions to fresh air simultaneously. 12, the design of loudspeaker air heat storage tube is 12 of technical characteristic of the present utility model. The object of design is like this: loudspeaker air heat storage tube is stainless steel reduced pipe, and it can play a part stable to burned flame and guide, and ensures fuel oil energy Thorough combustion simultaneously. 13, the design of tapering air flow guiding leaf is technical characteristic 13 of the present utility model. The object of design is like this: tapering air flow guiding leaf is special stainless steel plate, and it can to engine exhaust through row rectification. The design of the expanded leaves that 14, fires is technical characteristic 14 of the present utility model. The object of design is like this: the expanded leaves that fires adopts stainless steel stamping parts, it can to the clockwise or counterclockwise rectification of the gentle row of flowing through of flame, play all even dispersed flame and thermal current, make its equably to a DPF trap speed end face by thermal regeneration inward outward, thus avoid flame and thermal current to concentrate the heating of a zonule to DPF, solve a difficult problem for the DPF frequent regeneration that the false picture regeneration of DPF causes. 15, the design of igniter fan blade oversheath is 15 of technical characteristic of the present utility model. The object of design is like this: because igniter fan blade oversheath can either be used for low-temperature igniter to install, be connected to blast pipe, plays fixing and protection igniter, has again the effect of directing exhaust gas air-flow and igniter flame and thermal current simultaneously. 16, the design of reverse guide fan blade is 16 of technical characteristic of the present utility model. The object of design is like this: due to reverse guide fan blade to igniter exit flow through the clockwise or counterclockwise rectification of row, serve the effect of dispersed thermal current, thus together serve avoid flame and thermal current to concentrate the heating of a zonule to DPF with the expanded leaves that fires, solve a difficult problem for the DPF frequent regeneration that the false picture regeneration of DPF causes. 17, the design of air-flow guide collar is 17 of technical characteristic of the present utility model. The object of design is like this: because air-flow guide collar plays change nyctitropic effect to fresh air, ensures that fresh air fully mixes with fuel-steam, reaches the object of burning completely. 18, the design of taper tube end cap is 18 of technical characteristic of the present utility model. The object of design is like this: because taper tube end cap and tapered air combustion tube, taper tube oversheath form fresh air heating chamber, achieve to the object of fresh air heating. 19, the design of thermal store bottom is 19 of technical characteristic of the present utility model. The object of design is like this: because thermal store bottom and thermal store inner sheath, thermal store top cover, heat accumulation sheet, thermal store partition thermal store conduit form fuel Heating passage, which is provided with nozzle opening, bootable fuel-steam or fuel oil spray by specific position and direction, which is provided with oil pipe hole, oil pipe can be made to be mounted to thermal store inside. 20, the design of thermal store oversheath is 20 of technical characteristic of the present utility model. The object of design is like this: because thermal store oversheath and thermal store inner sheath, thermal store top cover, thermal store bottom form thermal store heat-insulation layer, achieve thermal store through row isothermal holding. 21, the design of thermal store conduit is 21 of technical characteristic of the present utility model. The object of design is like this: because thermal store conduit adopts square or circular stainless steel pipe, and it can be realized fire rod and install fixing, the heat energy of fire rod can be delivered in heat accumulation sheet again simultaneously. 22, the design of thermal store partition is 22 of technical characteristic of the present utility model. The object of design is like this: thermal store partition is used for certain fuel Heating passage can be formed between heat accumulation sheet, guarantees passing through smoothly of fuel oil. 23, adopting the design of carbon paper as insulation material, is 23 of technical characteristic of the present utility model. The object of design is like this: because carbon paper adopts graphite-made high-temperature-resistant thermal-insulation material, use it for heat storage through row isothermal holding, high insulating effect.

Technical scheme: a kind of Diesel engine DPF low-temp recovery igniter, comprise fire rod assembly, thermal store assembly, igniter combustion chamber assembly, igniter fan blade oversheath front end is connected with fire rod assembly, thermal store assembly, igniter combustion chamber assembly are positioned at a device fan blade oversheath, fluid radome fairing is positioned at igniter fan blade oversheath and directly to igniter combustion chamber assembly rear end, igniter fan blade oversheath rear portion is provided with reverse guide fan blade relative to fluid radome fairing.

The utility model is compared with background technology, solve and end face in DPF trap regeneration process, cannot be realized by closing all technical barriers of permanent regeneration of face outward inward, avoid DPF trap frequent regeneration that local regeneration brings, hardening crack and inflammable risk that dpf regeneration that hot-spot causes is potential.

Accompanying drawing explanation

Fig. 1 is Diesel engine DPF low-temp recovery ignition device structure schematic diagram.

Fig. 2 be in Fig. 1 A-A to sectional structure schematic diagram.

Fig. 3 is the structural representation of tapered air combustion tube in Fig. 2.

Fig. 4 is the structural representation that Fig. 2 hollow conductance flow point falls apart.

Fig. 5 is the structural representation of air-flow guide collar in Fig. 2.

Fig. 6 is the structural representation of thermal store bottom in Fig. 2.

Fig. 7 is the structural representation of igniter flange in Fig. 2.

Fig. 8 is the structural representation of fire rod coaming plate in Fig. 2.

Fig. 9 is the structural representation of taper tube oversheath (pipe) in Fig. 2.

Figure 10 is the structural representation of loudspeaker conduit in Fig. 2.

Figure 11 is the perspective view of Figure 10.

Detailed description of the invention

Embodiment 1: with reference to accompanying drawing 1-11. A kind of Diesel engine DPF low-temp recovery igniter, comprise fire rod assembly, thermal store assembly, igniter combustion chamber assembly, igniter fan blade oversheath 15 front end is connected with fire rod assembly, thermal store assembly, igniter combustion chamber assembly are positioned at a device fan blade oversheath 15, fluid radome fairing is positioned at igniter fan blade oversheath 15 and directly to igniter combustion chamber assembly rear end, igniter fan blade oversheath 15 rear portion is provided with reverse guide fan blade 16 relative to fluid radome fairing. Fluid radome fairing is made up of loudspeaker air heat storage tube 12, tapering air flow guiding leaf 13 and the expanded leaves 14 that fires; Loudspeaker air heat storage tube 12 big opening end is equipped with the expanded leaves 14 that fires, tapering air flow guiding leaf 13 is distributed in loudspeaker air heat storage tube 12 outer wall and air flow guiding leaf 13 touches mutually with cover igniter fan blade oversheath 15 inwall thereon, and outer pillar 10 rear port of loudspeaker air heat storage tube 12 osculum end and taper tube joins. In igniter combustion chamber assembly in loudspeaker conduit 11 straight length end by fire rod 7 and thermal store bottom 19 atomizer, oil pipe hole is enclosed within it and straight length subordinate portion has air intlet, tapered air combustion tube 9 inwall by air conducting dispersion plate 8 and air-flow guide collar 17 respectively with loudspeaker conduit 11 in straight length and the clamping of loudspeaker section and tapered air combustion tube 9 front port and thermal store bottom 19 join, tapered air combustion tube 9 rear port is equipped with taper tube end cap 18 with the outer pillar 10 rear end inwall clamping of cover taper tube thereon, the outer pillar 10 of taper tube front end.

Fluid radome fairing is made up of loudspeaker air heat storage tube 12, tapering air flow guiding leaf 13 and the expanded leaves 14 that fires; Loudspeaker air heat storage tube 12 big opening end is equipped with the expanded leaves 14 that fires, tapering air flow guiding leaf 13 is distributed in loudspeaker air heat storage tube 12 outer wall and air flow guiding leaf 13 touches mutually with cover igniter fan blade oversheath 15 inwall thereon, and outer pillar 10 rear port of loudspeaker air heat storage tube 12 osculum end and taper tube joins.

Loudspeaker air heat storage tube 12 adopts stainless steel reduced pipe, and burned flame is play a part stable and guided, and ensures fuel oil energy Thorough combustion simultaneously. Tapering air flow guiding leaf 13 adopts special stainless steel plate, can to engine exhaust through row rectification. The expanded leaves that fires 14 adopts stainless steel stamping parts, to the clockwise or counterclockwise rectification of the gentle row of flowing through of flame, plays all even dispersed flame and thermal current. Igniter fan blade oversheath 15 adopts stainless steel pipe, for low-temperature igniter being installed, is connected to blast pipe, plays fixing and protection igniter, simultaneously directing exhaust gas air-flow, igniter flame and thermal current.

In igniter combustion chamber assembly in loudspeaker conduit 11 straight length end by fire rod 7 and thermal store bottom 19 atomizer, oil pipe hole is enclosed within it and straight length subordinate portion has air intlet, tapered air combustion tube 9 inwall by air conducting dispersion plate 8 and air-flow guide collar 17 respectively with loudspeaker conduit 11 in straight length and the clamping of loudspeaker section and tapered air combustion tube 9 front port and thermal store bottom 19 join, tapered air combustion tube 9 rear port is equipped with taper tube end cap 18 with the outer pillar 10 rear end inwall clamping of cover taper tube thereon, the outer pillar 10 of taper tube front end.

Loudspeaker section in loudspeaker conduit 11 is formed by several conduit bar 1101 enlargings that are company with loudspeaker conduit straight length, and between conduit bar and conduit bar, be groove 1102, loudspeaker conduit straight length bottom has air intlet 1103. Loudspeaker conduit 11 adopts stainless steel workpiece, and effect is to protect fire rod 7 not by fresh air blast-cold or blowing-out, also plays the guide functions to fresh air simultaneously.

Tapered air combustion tube 9 adopts stainless steel reduced pipe, with air-flow guide collar 17, loudspeaker air heat storage tube 12, the common composition of flow rotation fan blade 14 igniter combustion chamber, fuel oil is guided to press specific direction Thorough combustion, which is provided with air inflow openings, namely tapered air combustion tube 9 front portion has air admission hole 901, and fresh air can be guided to enter in combustion chamber.

Taper tube oversheath 10 adopts stainless steel pipe, and tapered air combustion tube 9, taper tube end cap 18 form fresh air heating chamber, for heating to fresh air.

Air conducting dispersion plate 8 periphery has multiple air guide holes 801. Air conducting dispersion plate adopts stainless steel workpiece, effect be to fresh air through row water conservancy diversion and dispersion, the oxygen required for igniter fire is finally provided.

All inclined-planes 1701 and 1702 ringwise of air-flow guide collar 17 inside and outside wall. Air-flow guide collar 17 adopts stainless steel stamping parts, and fresh air is played and changes nyctitropic effect, ensures that fresh air fully mixes with fuel-steam, reaches the object of burning completely.

Thermal store assembly is by heat accumulation sheet 6, heat accumulation partition 22, thermal store bottom 19, thermal store oversheath 20, thermal store conduit 21, thermal store inner sheath 23, thermal store top cover 24, and carbon paper 30 forms; Thermal store bottom 19, thermal store conduit 21, thermal store inner sheath 23, thermal store top cover 24 form thermal store shell, heat accumulation sheet 6, heat accumulation partition 22 interlock and are fixed on thermal store conduit 21, thermal store oversheath 20 is enclosed within thermal store inner sheath 23 by carbon paper 30, oil pipe 25 oil-in is communicated with the inlet nozzle being positioned on igniter flange 3 end, oil pipe 25 stage casing bends to spring-like and is arranged on 9 of tapered air combustion tubes, and oil pipe 25 oil-out is arranged in thermal store inner sheath 23 through thermal store bottom 19 oil pipe hole and is embedded in heat accumulation sheet 6 oil pipe draw-in groove.

Heat accumulation sheet 6 adopts stainless steel stamping parts, for the heat producing after absorbing and accumulate fire rod 7 energising, guides fuel oil according to specific path flows simultaneously. Heat accumulation sheet 6 and heat accumulation partition 22, thermal store bottom 19, thermal store oversheath 20, thermal store conduit 21, thermal store inner sheath 23, thermal store top cover 24, carbon paper 30 combination forms thermal store.

Thermal store bottom 19 adopts stainless steel stamping parts; for the protection of heat accumulation sheet; fuel Heating passage is formed with thermal store inner sheath 23, thermal store top cover 24, heat accumulation sheet 6, thermal store partition 22 thermal store conduit 21; which is provided with nozzle opening; nozzle opening diameter is Φ 0.8 or Φ 1.0 or Φ 1.2 or Φ 1.5 or Φ 1.7 or Φ 2.0, and bootable fuel-steam or fuel oil spray by specific position and direction. Which is provided with oil pipe hole, oil pipe 25 can be made to be mounted to thermal store inside.

Thermal store oversheath 20 adopts stainless steel pipe, and for the protection of thermal store, with thermal store inner sheath 23, thermal store top cover 24, thermal store bottom 19 form thermal store heat-insulation layer, to thermal store through row isothermal holding.

Thermal store conduit 21 adopts square or circular stainless steel pipe, for fixing point lighted torch 7 is installed, the heat energy of fire rod is delivered in heat accumulation sheet simultaneously.

Thermal store partition 22 adopts stainless steel stamping parts, for forming certain fuel Heating passage between heat accumulation sheet 6.

Thermal store inner sheath 23 adopts stainless steel pipe, and protection heat accumulation sheet 6 and thermal store partition 22, form fuel Heating passage or cavity.

Thermal store top cover 24 adopts stainless steel stamping parts, and protection heat accumulation sheet 6 and thermal store partition 22, form fuel Heating passage or cavity.

Thermal store bottom 19 is provided with heating rod and stretches out hole 1901, nozzle opening 1902 and oil pipe hole 1903. Nozzle opening diameter is Φ 0.8 or Φ 1.0 or Φ 1.2 or Φ 1.5 or Φ 1.7 or Φ 2.0.

In fire rod assembly, igniter flange 3 surrounding is provided with fixing hole ear 301 and for fixing point firearm fan blade oversheath 15, and igniter flange 3 inner chamber is provided with support reinforcing ledges 305 and for thermal store assembly is installed; Fluid sealant 4 between being connected with ignition fuse 1, fire rod 7 rear end is adopted to be sealed in the annular seal space being formed by fire rod coaming plate 5, igniter flange 3, fire rod cover plate 29. Fire rod: a kind of electric resistor heater, thermal insulation layer is made up of boron nitride etc., and Main Function is that electric energy is converted to the heat energy that igniter needs, and provides simultaneously and can be used as ignition trigger device use.

Igniter flange 3 for igniter being fixed, is connected to blast pipe, on flange simultaneously or oil pipe fixture 27, tracheae fixture 28, igniter insulating plug 2, fire rod coaming plate 29, thermal store oversheath 23 be installed.

Fluid sealant: a kind of 4 adopt refractory ceramics glue for fixing point lighted torch 7, fire rod lead-in wire 1, plays insulation and heat insulation effect to fire rod lead-in wire simultaneously.

Fire rod coaming plate 5 adopts stainless steel stamping parts, for the protection of fire rod lead-in wire 1, fire rod 7, and carrying fluid sealant 4.

Igniter flange 3 sidepiece has ignition fuse installation cavity 302, valve installing hole 303, oil nozzle installing hole 304.

Valve installing hole 303 on igniter flange 3, oil nozzle installing hole 304 are separately installed with valve fixture 28 and oil nozzle fixture 27.

Igniter flange 3 is built-in with igniter flange plug 2. Igniter insulating plug 2 adopts aluminum silicate ceramic device, for fixing point lighted torch lead-in wire 1, play simultaneously to fire rod lead-in wire 1 insulate, the protective effect such as heat insulation.

The pure nickel of resistance to more than the 500 DEG C high temperature of fire rod lead-in wire 1 employing or the electric wire of nickel plating, for providing the power supply of DC24V, DC12V, AC220/50hz, AC110/50HZ to heating rod. Fire rod 7 is electric resistor heater, and on fire point rod 7, cover has thermal insulation layer.

The igniting renovation process of its Diesel engine DPF low-temp recovery igniter, to the continued power of fire rod 7 through row a period of time, finally make heat accumulation sheet 6, thermal store partition 22 can be laid in enough heat energy, then while or timesharing startup fuel feeding and air feed, the heat of heat accumulation sheet 6 makes diesel oil be gasificated into oil vapour, and reach the ignition temperature of diesel oil, be ejected in loudspeaker conduit 11 by the nozzle opening on thermal store bottom 19, simultaneously ozone finally 11 is mixed in loudspeaker conduit with oil vapour by gas channels, triggered to light by the front end high temperature head of fire rod 7 and form naked light, oil pipe stage casing sweep and air heat chamber accept the heat of naked light, fuel feeding is made to continue to be gasificated into high temperature oil steam at tubing bending place, air feed just enters taper combustion tube 9 and oil vapour mixing ignition after heating simultaneously, this ensures that there the continuity of whole combustion process, gas mixture is at tapered air combustion tube 9 and loudspeaker air heat storage tube 12, after obtaining to greatest extent Thorough combustion in the combustion chamber that the expanded leaves that fires 14 forms, the air-flow mixing chamber being formed by igniter fan blade oversheath 15 and reverse guide fan blade 16 is ejected into through the expanded leaves 14 that fires, through the rectification of the expanded leaves 14 that fires, thermal current and flame are in clockwise or be rotated counterclockwise herein, engine exhaust is through the rectification of tapering air flow guiding leaf 13 simultaneously, the air-flow that enters air-flow mixing chamber is also in clockwise or be rotated counterclockwise, thermal current, flame, after motor exhaust burns further and mixes in air-flow mixing chamber, discharge through reverse guide fan blade 16, reverse guide fan blade 16 is designed to counterclockwise or turns clockwise, ensure that the air flow rate of discharging air-flow mixing chamber and the uniformity of Temperature Distribution, thus guarantee temperature control point is effectively random and the holomorphosis of DPF. Diesel engine DPF low-temp recovery igniter sprays flame from the caliber of diameter 4cm, through repeatedly mixing, Thorough combustion, finally making thermal current be diffused into diameter is in 30cm plane, gas flow temperature is consistent with uniform flow distribution, and temperature reaches more than 600 DEG C.

It is to be understood that: although above-described embodiment is to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text of the utility model mentality of designing is described; instead of the restriction to the utility model mentality of designing; any do not exceed the utility model mentality of designing combination, increase or amendment, all fall in protection domain of the present utility model.

Claims (16)

1. a Diesel engine DPF low-temp recovery igniter, comprise fire rod assembly, thermal store assembly, igniter combustion chamber assembly, it is characterized in that: igniter fan blade oversheath front end is connected with fire rod assembly, thermal store assembly, igniter combustion chamber assembly are positioned at a device fan blade oversheath, fluid radome fairing is positioned at igniter fan blade oversheath and directly to igniter combustion chamber assembly rear end, igniter fan blade oversheath rear portion is provided with reverse guide fan blade relative to fluid radome fairing.

2. Diesel engine DPF low-temp recovery igniter according to claim 1, is characterized in that: fluid radome fairing is made up of loudspeaker air heat storage tube, tapering air flow guiding leaf and the expanded leaves that fires; Loudspeaker air heat storage tube big opening end is equipped with the expanded leaves that fires, tapering air flow guiding leaf is distributed in loudspeaker air heat storage tube outer wall and air flow guiding leaf touches mutually with cover igniter fan blade oversheath inwall thereon, and the outer pillar rear port of loudspeaker air heat storage tube osculum end and taper tube joins.

3. Diesel engine DPF low-temp recovery igniter according to claim 1, it is characterized in that: in igniter combustion chamber assembly in loudspeaker conduit straight length end by fire rod and thermal store bottom atomizer, enclose within it in oil pipe hole and straight length subordinate portion has air intlet, tapered air combustion tube inwall by air conducting dispersion plate and air-flow guide collar respectively with loudspeaker conduit in straight length and the clamping of loudspeaker section and tapered air combustion tube front port and thermal store bottom join, tapered air combustion tube rear port and the outer pillar rear end inwall clamping of cover taper tube thereon, the outer pillar of taper tube front end is equipped with taper tube end cap.

4. Diesel engine DPF low-temp recovery igniter according to claim 3, it is characterized in that: the loudspeaker section in loudspeaker conduit is formed by several conduit bar enlargings that are company with loudspeaker conduit straight length, between conduit bar and conduit bar, be groove, loudspeaker conduit straight length bottom has air intlet.

5. Diesel engine DPF low-temp recovery igniter according to claim 3, is characterized in that: tapered air combustion tube front portion has air admission hole.

6. Diesel engine DPF low-temp recovery igniter according to claim 3, is characterized in that: tapered air combustion tube and air-flow guide collar, loudspeaker air heat storage tube, flow rotation fan blade form igniter combustion chamber jointly.

7. Diesel engine DPF low-temp recovery igniter according to claim 3, is characterized in that: the outer pillar of taper tube and tapered air combustion tube, taper tube end cap composition fresh air heating chamber.

8. Diesel engine DPF low-temp recovery igniter according to claim 3, is characterized in that: air conducting dispersion plate periphery has multiple air guide holes.

9. Diesel engine DPF low-temp recovery igniter according to claim 3, is characterized in that: all inclined-planes ringwise of air-flow guide collar inside and outside wall.

10. Diesel engine DPF low-temp recovery igniter according to claim 1, is characterized in that: thermal store assembly is made up of heat accumulation sheet, heat accumulation partition, thermal store bottom, thermal store oversheath, thermal store conduit, thermal store inner sheath, thermal store top cover, carbon paper; Thermal store bottom, thermal store conduit, thermal store inner sheath, thermal store top cover form thermal store shell, heat accumulation sheet, heat accumulation partition interlock and are fixed on thermal store conduit, thermal store oversheath is enclosed within thermal store inner sheath by carbon paper, and oil pipe oil-out is arranged in thermal store inner sheath through thermal store bottom oil pipe hole and is embedded in heat accumulation sheet oil pipe draw-in groove.

11. Diesel engine DPF low-temp recovery igniters according to claim 10, is characterized in that: thermal store bottom is provided with heating rod and stretches out hole, nozzle opening and oil pipe hole.

12. Diesel engine DPF low-temp recovery igniters according to claim 1, it is characterized in that: in fire rod assembly, igniter flange surrounding is provided with fixing hole ear and for fixing point firearm fan blade oversheath, igniter flange inner chamber is provided with support reinforcing ledges and for thermal store assembly is installed; Between being connected with ignition fuse, fire rod rear end adopt sealant sealing in the annular seal space being formed by fire rod coaming plate, igniter flange, fire rod cover plate.

13. Diesel engine DPF low-temp recovery igniters according to claim 12, is characterized in that: igniter flange sidepiece has ignition fuse installation cavity, valve installing hole, oil nozzle installing hole.

14. Diesel engine DPF low-temp recovery igniters according to claim 13, is characterized in that: the valve installing hole on igniter flange, oil nozzle installing hole are separately installed with valve fixture and oil nozzle fixture.

15. Diesel engine DPF low-temp recovery igniters according to claim 12, is characterized in that: igniter flange is built-in with igniter flange plug.

16. Diesel engine DPF low-temp recovery igniters according to claim 12, is characterized in that: fire rod is electric resistor heater, and the upper cover of fire point rod has thermal insulation layer.