CN102155275A

CN102155275A - Ejector

Info

Publication number: CN102155275A
Application number: CN2011100820346A
Authority: CN
Inventors: 熊长国; 龙贻凯
Original assignee: CHONGQING FUEL-OIL JET SYSTEM Co Ltd CHINA HEAVY AUTOMOBILE GROUP
Current assignee: CHONGQING FUEL-OIL JET SYSTEM Co Ltd CHINA HEAVY AUTOMOBILE GROUP
Priority date: 2011-04-01
Filing date: 2011-04-01
Publication date: 2011-08-17

Abstract

The invention discloses an ejector, which consists of an ejector sub-assembly and an electromagnetic sub-assembly. In the invention, the structures of the ejector sub-assembly and the electromagnetic sub-assembly and the connection relation between the two sub-assemblies are detailedly introduced and presented. The ejector has the advantages that: a device capable of neutralizing automobile exhaust is provided; and movable distances of ejection controlling parts are adjustable, and different ejection effects can be achieved through adjustment functions.

Description

A kind of sparger

Technical field

The present invention relates to a kind of automobile exhaust gas processing apparatus, relate in particular to a kind of sparger.

Background technique

Vehicle exhaust is the one of the main reasons of environmental pollution, and therefore, the pollution that tail gas caused that how to reduce automobile is a human global problem that faces jointly.

Summary of the invention

In order to reduce the pollution of vehicle exhaust to environment, the present invention proposes a kind of sparger, its structure is: it is made up of sparger sub-assembly and solenoid valve sub-assembly; Wherein, the sparger sub-assembly comprises injector body, needle-valve body and liquid inlet pipe joint, needle-valve body is socketed in the mesopore of injector body, the tip of needle-valve body contacts with the spray-hole hole wall of injector body bottom, the liquid inlet pipe joint is fixedlyed connected with injector body, and the endoporus of liquid inlet pipe joint is communicated with spray-hole by pipeline;

The solenoid valve sub-assembly comprises solenoid valve, solenoid valve seat, solenoid valve Regulation spring and reflow pipe, the solenoid valve bottom is connected with injector body top, reflow pipe is socketed in the mesopore of solenoid valve, solenoid valve seat bottom and needle-valve body afterbody are fixed, the solenoid valve Regulation spring is arranged between solenoid valve seat upper-end surface and the reflow pipe bottom, leave the gap between solenoid valve seat upper-end surface and the reflow pipe bottom, solenoid valve seat is provided with mesopore, and reflow pipe endoporus and needle-valve body endoporus are communicated with by the mesopore on the solenoid valve seat.

Spray-hole is communicated with the vehicle exhaust outlet pipe, and solenoid valve and ECU are electrically connected, and the liquid inlet pipe joint all is connected with device for storing liquid by pipeline with reflow pipe, stores aqueous solution of urea in the device for storing liquid.

During the energising of ECU control electromagnetic valve, solenoid valve seat is upwards picked up, the tip of needle-valve body and spray-hole break away from, aqueous solution of urea sprays to the vehicle exhaust outlet pipe by spray-hole, aqueous solution of urea mixes the back chemical reaction takes place with vehicle exhaust, with the harmful matter neutralization, reduce the pollution of tail gas to environment.

Further, be threaded between the inner walls of reflow pipe and ring-type solenoid valve, also be socketed with a ring cover on the outer wall on reflow pipe top, be threaded between the inwall of ring cover and the ring-type electromagnetism valve housing outer wall, ring cover is stuck in reflow pipe in the ring-type solenoid valve.

Useful technique effect of the present invention is: a kind of device that can neutralize to vehicle exhaust is provided; The move distance can regulate of the parts that control is sprayed can reach different jeting effects by regulatory function.

Description of drawings

The annexation schematic representation of Fig. 1, structure of the present invention and remaining part;

Fig. 2, structural profile schematic representation of the present invention;

The generalized section of Fig. 3, clearance distance adjustable structure of the present invention.

Embodiment

Referring to Fig. 2, structure of the present invention is made up of sparger sub-assembly 1 and solenoid valve sub-assembly 2; Wherein, sparger sub-assembly 1 comprises injector body 1-1, needle-valve body 1-2 and liquid inlet pipe joint 1-3, needle-valve body 1-2 is socketed in the mesopore of injector body 1-1, the tip of needle-valve body 1-2 contacts with the spray-hole 1-4 hole wall of injector body 1-1 bottom, seals between the endoporus of needle-valve body 1-2 and the spray-hole 1-4; Structure around the spray-hole 1-4 forms a cavity 1-5, and cavity 1-5 is communicated with the endoporus of needle-valve body 1-2 by the inclined hole of needle-valve body 1-2 tip; Liquid inlet pipe joint 1-3 is fixedlyed connected with injector body 1-1; The endoporus of liquid inlet pipe joint 1-3 is communicated with cavity 1-5 by pipeline;

Solenoid valve sub-assembly 2 comprises solenoid valve 2-1, solenoid valve seat 2-2, solenoid valve Regulation spring 2-3 and reflow pipe 2-4, solenoid valve 2-1 bottom is connected with injector body 1-1 top, reflow pipe 2-4 is socketed in the mesopore of solenoid valve 2-1, solenoid valve seat 2-2 bottom and needle-valve body 1-2 afterbody are fixed, solenoid valve Regulation spring 2-3 is arranged between solenoid valve seat 2-2 upper-end surface and the reflow pipe 2-4 bottom, leave the gap between solenoid valve seat 2-2 upper-end surface and the reflow pipe 2-4 bottom, solenoid valve seat 2-2 is provided with mesopore, and reflow pipe 2-4 endoporus and needle-valve body 1-2 endoporus are communicated with by the mesopore on the solenoid valve seat 2-2.

The working procedure of sparger is: when sparger is not worked, solenoid valve 2-1 no electric circuit, solenoid valve Regulation spring 2-3 pushes up solenoid valve seat 2-2 downwards and acts on needle-valve body 1-2 afterbody, and needle-valve body 1-2 tip cuts off spray-hole 1-4 sealing between cavity 1-5 and the spray-hole 1-4; During the beginning hydrojet, solenoid valve 2-1 energising upwards picks up solenoid valve seat 2-2, solenoid valve seat 2-2 moves upward and the active force that overcomes solenoid valve Regulation spring 2-3 is upwards mentioned needle-valve body 1-2, spray-hole 1-4 and cavity 1-5 conducting, the liquid in the device for storing liquid 4 sprays into cavity 1-5 and enters spray-hole 1-4 by liquid inlet pipe joint 1-3 and outwards sprays; When sparger quits work, solenoid valve 2-1 outage, solenoid valve seat 2-2 pushes up needle-valve body 1-2 downwards under the effect of solenoid valve Regulation spring 2-3, spray-hole 1-4 is sealed in needle-valve body 1-2 tip, liquid inlet pipe joint 1-3 stops hydrojet, the residual liquid that has sprayed enters needle-valve body 1-2 endoporus by the inclined hole of needle-valve body 1-2 tip, and residual liquid is flowed through behind needle-valve body 1-2 endoporus, solenoid valve seat 2-2 mesopore, the reflow pipe 2-4 endoporus, flows back in the device for storing liquid 4 by pipeline.

Referring to Fig. 1, with the external equipment of collaborative work of the present invention with annexation of the present invention be: spray-hole 1-4 is communicated with vehicle exhaust outlet pipe 5, solenoid valve 2-1 and ECU 3 are electrically connected, liquid inlet pipe joint 1-3 is connected with device for storing liquid 4 by pipeline with reflow pipe 2-4, stores aqueous solution of urea in the device for storing liquid 4.When spraying aqueous solution of urea, device for storing liquid 4 can carry out supercharging to liquid.

Aqueous solution of urea is vaporific ejection from spray-hole 1-4 under the fluid pressure effect, vaporific aqueous solution of urea in vehicle exhaust outlet pipe 5 with the biochemical reaction of the abundant hybrid concurrency of tail gas of motor vehicle emission, the neutralization of harmful matter in the tail gas is harmless material, and this has just reduced the pollution of the tail gas of motor vehicle emission to environment.

Also can do further to improve to the structure of solenoid valve sub-assembly 2, referring to Fig. 3, be threaded between the housing 2-1-1 inwall of reflow pipe 2-4 and ring-type solenoid valve 2-1, also be socketed with a ring cover 15 on the outer wall on reflow pipe 2-4 top, be threaded between the housing 2-1-1 outer wall of the inwall of ring cover 15 and ring-type solenoid valve 2-1, ring cover 15 is stuck in reflow pipe 2-4 in the ring-type solenoid valve 2-1.If adopt fixed connection between the housing 2-1-1 inwall of reflow pipe 2-4 and ring-type solenoid valve 2-1, after structure installs so, the relative position of reflow pipe 2-4 and ring-type solenoid valve 2-1 housing 2-1-1 just can't be regulated, this just causes the move distance of needle-valve body 1-2 to regulate, and at actual conditions, the move distance that needs to change needle-valve body 1-2 is adjusted jeting effect, if adopt screw thread to add the mode of structure of ring cover 15, just can address this problem, specifically: in the time of adjusting the move distance of needle-valve body 1-2, trip ring female cap 15, rotation reflow pipe 2-4 can adjust the clearance distance between reflow pipe 2-4 bottom and the solenoid valve seat 2-2, after adjusting, ring cover 15 loaded onto get final product.

Claims

1. sparger, it is characterized in that: it is made up of sparger sub-assembly (1) and solenoid valve sub-assembly (2); Wherein, sparger sub-assembly (1) comprises injector body (1-1), needle-valve body (1-2) and liquid inlet pipe joint (1-3), needle-valve body (1-2) is socketed in the mesopore of injector body (1-1), the tip of needle-valve body (1-2) contacts with spray-hole (1-4) hole wall of injector body (1-1) bottom, sealing between the endoporus of needle-valve body (1-2) and the spray-hole (1-4); Spray-hole (1-4) structure on every side forms a cavity (1-5), and cavity (1-5) is communicated with the endoporus of needle-valve body (1-2) by the inclined hole of needle-valve body (1-2) tip; Liquid inlet pipe joint (1-3) is fixedlyed connected with injector body (1-1); The endoporus of liquid inlet pipe joint (1-3) is communicated with cavity (1-5) by pipeline;

Solenoid valve sub-assembly (2) comprises solenoid valve (2-1), solenoid valve seat (2-2), solenoid valve Regulation spring (2-3) and reflow pipe (2-4), solenoid valve (2-1) bottom is connected with injector body (1-1) top, reflow pipe (2-4) is socketed in the mesopore of solenoid valve (2-1), solenoid valve seat (2-2) bottom and needle-valve body (1-2) afterbody are fixed, solenoid valve Regulation spring (2-3) is arranged between solenoid valve seat (2-2) upper-end surface and reflow pipe (2-4) bottom, leave the gap between solenoid valve seat (2-2) upper-end surface and reflow pipe (2-4) bottom, solenoid valve seat (2-2) is provided with mesopore, and reflow pipe (2-4) endoporus and needle-valve body (1-2) endoporus are communicated with by the mesopore on the solenoid valve seat (2-2).

2. a kind of sparger according to claim 1, it is characterized in that: spray-hole (1-4) is communicated with vehicle exhaust outlet pipe (5), solenoid valve (2-1) and ECU(3) be electrically connected, liquid inlet pipe joint (1-3) all is connected with device for storing liquid (4) by pipeline with reflow pipe (2-4), and device for storing liquid stores aqueous solution of urea in (4).

3. a kind of sparger according to claim 1, it is characterized in that: be threaded between housing (2-1-1) inwall of reflow pipe (2-4) and ring-type solenoid valve (2-1), also be socketed with a ring cover (15) on the outer wall on reflow pipe (2-4) top, be threaded between housing (2-1-1) outer wall of the inwall of ring cover (15) and ring-type solenoid valve (2-1), ring cover (15) is stuck in reflow pipe (2-4) in the ring-type solenoid valve (2-1).