CN2087240U - Exhaust and extinguishing spark apparatus for automobile - Google Patents

Abstract

The utility model provides an exhaust and extinguishing spark apparatus for an automobile, comprising an air inlet pipe, an inner spark extinguishing hood, a ventilation end cover, an outer spark extinguishing hood, an outer end cover, a cylindrical outer casing and an exhaust port. The spark in the exhaust waste gas of the exhaust pipe passes through block, impact and extinguishing of 4 times through people use the utility model. Therefore, the engine has not the possibility of leaking the spark at the any working state. The utility model has the advantages of good spark extinguishing effect, small engine power loss, reasonable structure, long service life, low cost, etc.

Description

Exhaust and extinguishing spark apparatus for automobile

The utility model relates to a kind of automobile exhausting spark arrester that is used for automobile exhausting, noise elimination, blow-out.

Motor Vehicle enters inflammable, explosive zone, as dangerous goods stores such as oil, chemical industry, harbour, goods yard, cotton spinning, munitions, outlet pipe is emerged if any spark and is caused fire, explosive accident easily.So transport chemical dangerous goods and enter motor vehicle inflammable, explosive zone and all must arc arrester be installed at the outlet pipe tail end.

At present, the exhaust spark trap device that Motor Vehicle on sale uses on the market, it is made up of preceding pipe, middle pipe and back pipe.Before pipe be that diameter is the bassoon of 160mm cylindrical shape, middle pipe is that 30～40 internal diameters are the tubule about 10mm, back pipe is that tubule about 10mm is formed for containing 30～40 internal diameters in the bassoon.Tubule in middle pipe and the back pipe is the intersection arrangement.Its working principle is: during tubule during the spark in the waste gas that Motor Vehicle is discharged is entered by preceding pipe in the pipe, gas channel reduces suddenly, has increased spark bump tube wall and the chance extinguished.Then, waste gas enters the tubule of back in the pipe by the tubule in the middle pipe, arranges owing to be between tubule and the tubule to intersect, and the spark of remnants is once clashed into again extinguish.Though this fire prevention silencing apparatus can extinguish the spark in the outlet pipe waste gas to a certain extent, because waste gas is straight line moving basically in pipeline, therefore the spark of trace also might be discharged from arc arrester, causes fire accident.This arc arrester power loss ratio (wasted power/former engine power) is 3%, surpasses the standard of power loss ratio≤2% of NBS (examining original text) regulation.Because unreasonable structure, small tubes is tied charcoal easily, causes gas channel not smooth, when current pipe large quantity of exhaust gas can not enter tubule smoothly, can cause preceding pipe pressure increase and burst reduction of service life.Other also exists from heavy defectives such as cost height.

The purpose of this utility model provides a kind of novel automobile exhausting spark arrester, and it has Mars and extinguishes effectively, and engine power loss is little, and is rational in infrastructure, long service life, and from heavy and light, advantage such as cost is low.

The utility model is achieved in that this automobile exhausting spark arrester, form and comprise cylinder blanket, bonnet, suction tude, relief opening, the rear end that it is characterized in that the cylindrical shape suction tude is passed bonnet central authorities and is communicated with the interior pipe of exhaust silencer, uniform breeder tube on the suction tude tube wall, its front end is the round bottom of sealing, suction tude has conical interior flameout cover outward, its front end has bowl-type ventilation end cap, uniform breeder tube on the ventilation end cap, constitute gas channel between suction tude and the interior flameout cover, interior flameout cover has the outer flameout cover of cylindrical shape outward, uniform breeder tube on its cylindrical shape case, front end is the disc outer end cap, constitutes gas channel between interior flameout cover and the outer flameout cover, and there is the shell that joins with the exhaust silencer shell outer flameout cover outside, constitute the exhaust passage between outer flameout cover and the shell, the exhaust passage front end is the annular row gas port, has a bolt to pass ventilation end cap and outer end cap on the round bottom of suction tude front end, has nut fastening.Its working principle is: waste gas pipe in the exhaust silencer enters suction tude of the present utility model, this pipe front end sealing, most spark of carrying secretly in the waste gas extinguishes at the front end bump, and waste gas advances at front end and is obstructed, and changes flow direction, discharge from the tube wall aperture, waste gas enters the passage between suction tude and the interior flameout cover, because interior flameout cover tube wall does not have aperture, remaining spark is subjected to again clashing into and extinguishes in the waste gas, waste gas changes the flow direction again, discharges from the exhaust hole of ventilation end cap.Spark in the waste gas extinguishes substantially through behind above twice bump.Because outer end cap seal,, waste gas flows to breeder tube discharge from the outer flameout cover case so being obstructed again to change, enter the passage between outer flameout cover and the shell, waste gas is subjected to stopping of shell, changes flow direction, discharges from the annular row gas port of passage front end.Next twice waste gas is obstructed and change flows to is in order to make in the waste gas just in case the spark of omitting here clashes into extinguishes, and makes the fire extinguishing effect reach 100%, when engine speed from a high speed to low speed, when carrying out the variable working condition running more from low speed to high speed, no-spark is released fully.There is a bolt to pass ventilation end cap and outer end cap on the round bottom of suction tude front end of the present utility model, there is nut fastening, utilize regulates nut, the bolt gap between can the adjustments of gas passage, reach reasonable working state, be convenient to remove and install, and play a supporting role.

Shell of the present utility model and bonnet and automobile exhausting muffler shell can reach the dual functions that automobile exhausting is eliminated the noise and extinguished spark simultaneously through being welded and fused.

Each parts of the present utility model are made by sheet iron, can reduce production costs and alleviate from weight like this.

Compared with the prior art the utility model has following tangible advantage: one, the blow-out performance is good, and the spark in the waste gas that outlet pipe is discharged extinguishes through 4 bumps that are obstructed, motor under any working state, no-spark possibilities of releasing all.Two, power loss is little, because venting channels design is more reasonable, though waste gas is obstructed for 4 times, power loss ratio is still less than 2% NBS.Three, rational in infrastructure, shock-resistant, vibrations performance good.Through vibration frequency is 50Hz, and amplitude is 1.0mm, and time of vibration is phenomenons such as the test of 10h, no sealing-off, fracture.Four, long service life, average out to 2 years is 2 times of NBS (1 year).Five,, be convenient to install because each parts is all made (and can utilize leftover pieces) with sheet iron so cost of production is lower than prior art, and from heavy and light.

The motor vehicle exhaust tail end that the utility model arc arrester and automobile exhausting silencing apparatus fuse and be installed in various models and specification can effectively stop spark to be discharged, and guarantees the safety of Motor Vehicle transportation.

Now in conjunction with the accompanying drawings an embodiment of the present utility model is specified.

Fig. 1 is a structural drawing of the present utility model.

Label among the figure is represented: 1-suction tude, flameout cover in the 2-suction tude aperture, 3-, the outer flameout cover of 4-, the outer flameout cover aperture of 5-, flameout cover aperture in the 6-, 7-shell, 8-relief opening, the 9-end cap of ventilating, 10-ventilation end cap aperture, 11-outer end cap, 12-bolt, the 13-nut, pipe in the 14-bonnet, 15-exhaust silencer, 16-exhaust silencer shell.

An optimum implementation of the present utility model is: referring to accompanying drawing.

This automobile exhausting spark arrester is formed and is comprised cylinder blanket (7), bonnet (14), suction tude (1), relief opening (8), the rear end of cylindrical shape suction tude (1) is passed bonnet (14) central authorities and is communicated with pipe (15) in the exhaust silencer, laterally uniform seven row's breeder tubes (2) on suction tude (1) tube wall, every row has 7 apertures (2), its front end is the round bottom of sealing, conical interior flameout cover (3) is arranged outside the suction tude (1), its cover wall front end has a circle totally 10 uniform breeder tubes (6), interior flameout cover (3) front end has bowl-type ventilation end cap (9), above uniform 45 breeder tubes (10), the outer flameout cover (4) of cylindrical shape is arranged outside the interior flameout cover (3), laterally uniform 8 row's breeder tubes (5) on its tube wall, every row has 18 apertures (5), its front end is disc outer end cap (11), and above hole diameter is 10mm.There is the shell (7) that joins with exhaust silencer shell (16) outer flameout cover (4) outside, constitutes the exhaust passage between outer flameout cover (4) and the shell (7), and its front end is annular row gas port (8).There is a bolt (12) to pass ventilation end cap (9) and outer end cap (11) on the round bottom of suction tude (1) front end, has nut (13) fastening.

Claims (3)

1, a kind of automobile exhausting spark arrester, form and comprise cylinder blanket [7], bonnet [14], suction tude [1], relief opening [8], the rear end that it is characterized in that cylindrical shape suction tude [1] is passed and is managed [15] in bonnet [14] central authorities and the exhaust silencer and communicate, uniform breeder tube [2] on suction tude [1] tube wall, its front end is the round bottom of sealing, conical interior flameout cover [3] is arranged outside the suction tude [1], its front end has bowl-type ventilation end cap [9], ventilation end cap [9] is gone up uniform breeder tube [10], constitute gas channel between suction tude [1] and the interior flameout cover [3], the outer flameout cover [4] of cylindrical shape is arranged outside the interior flameout cover [3], uniform breeder tube [5] on its cylindrical shape case, front end is disc outer end cap [11], constitute gas channel between interior flameout cover [3] and the outer flameout cover [4], there is the shell [7] that joins with exhaust silencer shell [16] outer flameout cover [4] outside, constitute the exhaust passage between outer flameout cover [4] and the shell [7], the exhaust passage front end is annular row gas port [8], there is a bolt [12] to pass ventilation end cap [9] and outer end cap [11] on the round bottom of suction tude [1] front end, has nut [13] fastening.

2, arc arrester according to claim 1, it is characterized in that laterally uniform seven row's breeder tubes (2) on suction tude (1) tube wall, every row has 7 apertures (2), interior flameout cover (3) tube wall front end has a circle totally 10 uniform breeder tubes (6), uniform 45 breeder tubes (10) above the bowl-type ventilation end cap (9), laterally uniform 8 row's breeder tubes (5) on outer flameout cover (4) tube wall, every row has 18 apertures (5), and above hole diameter is 10mm.

3, arc arrester according to claim 1 is characterized in that each parts makes by sheet iron.