CN201132518Y

CN201132518Y - Nitrogen-charging machine for tyres

Info

Publication number: CN201132518Y
Application number: CNU2007201900775U
Authority: CN
Inventors: 张健春
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-08
Filing date: 2007-11-08
Publication date: 2008-10-15
Anticipated expiration: 2017-11-08

Abstract

The utility model provides a tyre nitrogen-charging machine, which includes a tail gas supercharger, a tail gas filter, and a safety valve. An air inlet of the tail gas supercharger is connected with a tail gas connecting pipe, an air outlet of the tail gas supercharger is connected with the air inlet of the tail gas filter through a connecting pipe, granular activated carbon is filled in the tail gas filter: the tail gas supercharger is a gas-gas supercharger and is provided with two low-pressure air inlets which are serially connected through a pipeline and a supercharging air outlet; one low-pressure air inlet is provided with a one-way air inletting valve core inside and is communicated with a supercharging cavity on a small piston; the other low-pressure air inlet is communicated with a pressure cavity under a large piston. A one-way air discharging valve core is arranged in the supercharging cavity, a pressure spring is arranged on the one-way air discharging valve core, the one-way air discharging valve core in the supercharging air outlet is communicated with the supercharging cavity on the small piston. The tyre nitrogen-charging machine has the advantages of simple structure, convenient usage and high-purity nitrogen gas, and can meet the actual usage requirements.

Description

The tire nitrogen filler

Technical field

The utility model relates to the automobile tyre gas filled device, is a kind of device that utilizes motor-vehicle tail-gas to carry out the tire inflated with nitrogen.

Background technology

At present, generally the tire to self-propelled vehicle puts on the air, adopt air compressor to carry out inflation of tire, because the gas of air compressor output contains impurity, greasy dirt etc., to impacting in service life of tire, in order to improve the service life of tire, have employing that helium is poured tire, can improve the service life of tire greatly, existing helium machine is to extract the preparation helium with air, its equipment complexity, cost an arm and a leg, be difficult to satisfy operating needs; " gas filled device " utility model patent (ZL 02257343.7) of the applicant's application, be the tail gas that automotive engine is produced, be connected with charging connector directly to inflation of tire by conduit, portably use conveniently, but exist to give problems such as having profit impurity in the not enough sometimes and tail gas of tire distribution pressure, can not satisfy operating needs fully; The applicant improves on the basis of above-mentioned utility model, applied for patent of invention " portable nitrogen charger " (application number: 200410096069.5), the characteristics of being somebody's turn to do " portable nitrogen charger " are to have increased common pressurizer and filter, common pressurizer is by motor gas to be carried out supercharging, though can improve the pressure of gas, but need to consume electric power, make troubles for actual the use, common in addition filter only can filter oil, water, impurity, can not filter out CO, SO in the tail gas ₂, HC, NOx etc., thereby reduced the purity of nitrogen.

Summary of the invention

The utility model purpose provides a kind of tire nitrogen filler, and it is simple in structure, easy to use, the purity height of nitrogen, can satisfy actual operating needs.

For achieving the above object, the utility model is taked following technical scheme:

A kind of tire nitrogen filler, it is characterized in that: it includes tail gas blwr and tail gas filter and safety valve, the admission port of this tail gas blwr is connected with the tail gas connection pipe, on the tail gas connection pipe, safety valve is installed, act as the normal trouble free service of the discharging Xi System of protection driving engine and vehicle, the air extractor duct of this tail gas blwr is connected with the admission port of tail gas filter by connection pipe, be filled with active carbon particle in tail gas filter: described tail gas blwr is the improvement of gas gas blwr, it is provided with two by the series connected low-pressure admission mouth of pipeline and a supercharging air extractor duct, be provided with the breather cheek valve core in the low-pressure admission mouth, and be communicated with booster cavity on the valve piston, another low-pressure admission mouth is communicated with pressure chamber under the big piston; Be provided with the unidirectional spool of giving vent to anger in the supercharging air extractor duct, be provided with pressure spring on this unidirectional spool of giving vent to anger, it act as normal starting and the work that guarantees the tail gas blwr, and unidirectional in this supercharging air extractor duct spool of giving vent to anger is communicated with booster cavity on the valve piston.

Above-mentioned tail gas filter comprises the inlet chamber and the filter chamber of rotating centrifugal, between the inlet chamber of rotating centrifugal and filter chamber, be provided with dividing plate, sidewall at the inlet chamber of rotating centrifugal is provided with the tangent line admission port, on the plate face of dividing plate, be provided with a circle along airintake direction bevelled inclined hole, active carbon particle is set in filter chamber, is provided with freeing pipe, be connected with gas piping on this freeing pipe at the middle part of filter chamber, this gas piping is connected with valve, is connected with compression indicator on the sidewall of gas piping.

The sidewall of above-mentioned freeing pipe has filtering micropore.

Lower end at valve piston is connected with piston rod, the lower end of this piston rod connects big piston, in piston rod, be provided with blind hole under shed, in this blind hole, be provided with the reverse lever that stretches out downwards, fixed cover is connected to reversing cover on the shaft of this reverse lever, lower pole at reverse lever is connected with reversing valve core on one's body, is provided with ventilation orifice in the bottom of the tail gas blwr of reversing valve core bottom, is provided with through hole on the ring cowling on big piston top.

Principle of work is: motor exhaust enters respectively in the tail gas blwr by two low-pressure admission mouths, and big piston promotes the gas in the valve piston compression booster cavity, and the gas after the supercharging rotates into and filters removing moisture in the tail gas filter, the CO in the tail gas, SO ₂, HO, mist of oil molecule and impurity is adsorbed during by active carbon particle, the nitrogen in the tail gas is exported from tail gas filter by freeing pipe, and tire is put on the air.

And existing gas (gas gas) blwr, turbocharger all need to start the constant of power and problem that just can normal operation under certain pressure, and the designed structure of this blwr has overcome this problem (promptly Chu Kou pressure spring makes it not have the phenomenon generation of collaborating before blwr work) just.The discharging of motor-vehicle tail-gas is pulsation and non-constant work causes difficulty to blwr like this: the blwr that promotes valve piston as big piston can produce collaborates, and fail to start work (initial pressure low non-constant be pulsation) and overcome this shortcoming prior art and adopt and increase that auxiliary source of the gas promptly increases gas in advance and work gas solves problem, the application's utility model is not owing to consider the loss of source of the gas in pressurization, only considers the reliable operation of blwr and designs.Turbocharger also is just can start when pressure reaches preset pressure, and this also is why TC engine will reach the principle of work (the high more relevant pressure of engine speed is big more) that just can work under the certain speed situation.

The beneficial effects of the utility model are: the purity height of simple in structure, easy to use, nitrogen, can satisfy actual operating needs.

Description of drawings

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

Fig. 2 is a tail gas blwr profile scheme drawing of the present utility model.

Fig. 3 is the A-A sectional structure scheme drawing of Fig. 2.

Fig. 4 is a tail gas filter profile scheme drawing of the present utility model.

Fig. 5 is Fig. 4 B-B sectional structure scheme drawing.

Fig. 6 is Fig. 4 C-C sectional structure scheme drawing.

Fig. 7 is a tail gas filter profile schematic perspective view of the present utility model.

The specific embodiment

Referring to Fig. 1～shown in Figure 7: a kind of tire nitrogen filler, it includes tail gas blwr 2 and tail gas filter 1, the admission port of this tail gas blwr 2 is connected with tail gas connection pipe 3, safety valve 28 is installed on tail gas connection pipe 3, the air extractor duct 7 of this tail gas blwr is connected with the admission port 9 of tail gas filter 1 by connection pipe 8, be filled with active carbon particle 29 in tail gas filter: described tail gas blwr 2 is gas gas blwrs, promptly carry out supercharging by gas, it is provided with two by pipeline 5 series connected low-

pressure admission mouths

4,6 and supercharging air extractor ducts 7, be provided with breather cheek valve core 13 in the low-pressure admission mouth 6, and be communicated with booster cavity 16 on the valve piston 17, another low-pressure admission mouth 4 is communicated with pressure chamber 25 under the big piston 24; Be provided with the unidirectional spool 14 of giving vent to anger in supercharging air extractor duct 7, be provided with pressure spring 15 on this unidirectional spool 14 of giving vent to anger, unidirectional in this supercharging air extractor duct 7 spool 14 of giving vent to anger is communicated with booster cavity 16 on the valve piston.

Safety valve 28 is installed on tail gas connection pipe 3, act as the normal trouble free service of the discharging Xi System of protection driving engine and vehicle, it is flame-out and destructive that automotive emission Xi System and driving engine can not produced.

Above-mentioned tail gas filter 1 comprises inlet chamber 28 and filter chamber 30, between inlet chamber 28 and filter chamber 30, be provided with dividing plate 32, sidewall at inlet chamber 28 is provided with tangent line admission port 9, on the plate face of dividing plate 32, be provided with a circle along airintake direction bevelled inclined hole 33, active carbon particle 29 is set in filter chamber 30, be provided with freeing pipe 31 at the middle part of filter chamber 30, be connected with gas piping 11 on this freeing pipe 31, this gas piping 11 is connected with valve 12, is connected with compression indicator 10 on the sidewall of gas piping 11.

Above-mentioned freeing pipe 31 adopts metallic materials or non-metallic material to make, and at the sidewall of freeing pipe 31 filtering micropore is arranged, and it act as and prevents that micro activated carbon particle from entering in the gas piping 11.

Be connected with piston rod 23 in the lower end of valve piston 17, the lower end of this piston rod 23 connects big piston 24, in drawing together plug connecting rod 23, be provided with blind hole 20 under shed, in this blind hole 20, be provided with the reverse lever 21 that stretches out downwards, on the shaft of this reverse lever 21, be socketed with fixing reversing cover 22, lower pole at reverse lever 21 is connected with reversing valve core 26 on one's body, bottom at the tail gas blwr of reversing valve core 26 bottoms is provided with ventilation orifice 27, is provided with through hole 19 on the ring cowling 18 on big piston 24 tops.

Working process is: motor exhaust is by tail gas connection pipe 3, pipeline 5 and by two low-

pressure admission mouths

4,6 enter respectively in the tail gas blwr, tail gas in the pressure chamber 25 promotes big piston 24, when big piston promotes tail gas in the valve pistons 17 compression booster cavities 16 by piston rod 23, breather cheek valve core 13 is closed low-pressure admission mouth 6, at this moment, breather cheek valve core 14 is under the effect of pressure spring 15, close supercharging air extractor duct 7, when the gaseous tension of compression in the booster cavity 16 during greater than the pressure of pressure spring 15, supercharging air extractor duct 7 is opened, output supercharging tail gas, at this moment, moving reversing cover 22 of the altitudinal belt that big piston rises and reverse lever 21 rise, the rising of reverse lever 21 drives reversing valve core 26 and rises, open ventilation orifice 27, at this moment, tail gas enters in the compression booster cavity 16 by low-pressure admission mouth 6, the promotion valve piston is descending, tail gas in the pressure chamber 25 is discharged by ventilation orifice 27, and valve piston continues descending, and it is descending that the top in the blind hole 20 promotes reverse lever 21, it is descending to drive reversing valve core 26, close ventilation orifice 27, tail gas is entered by low-pressure admission mouth 4 promote big pistons 24 in the pressure chamber 25, form new one and take turns circulation;

In tail gas after the supercharging enters inlet chamber 28 in the tail gas filter by supercharging air extractor duct 7 and connection pipe 8 along tangent line admission port 9, madial wall along inlet chamber 28 forms rotating centrifugal gas, gas is attached to the oil in the tail gas, water, particle on the sidewall of inlet chamber 28 in the rotating centrifugal process, the gas of rotating centrifugal enters in the filter chamber 30 active carbon particle 29 interior with being arranged on filter chamber 30 through the circle of one on the dividing plate 32 inclined hole 33 and contacts then, makes CO, SO in the tail gas ₂, HC, NOx etc. are adsorbed during by active carbon particle, the nitrogen in the tail gas enters in the freeing pipe 31 by the filtering micropore of freeing pipe 31 sidewalls, discharges the nitrogen of superchargings from gas piping 11, carries out inflated with nitrogen by 12 pairs of tires of valve.

Tail gas connection pipe 3 in the utility model and safety valve 28 connect motor-vehicle tail-gas, the blowdown presssure of tail gas is not higher than 150K Pa in general, to guarantee the safety of automotive emission Xi System, can not produce flame-out and destructive to automotive emission Xi System and driving engine; By improving pressure behind the tail gas blwr 2, can satisfy the inflation pressure of tire requirement to 200K Pa～1200K Pa or higher working pressure.

Claims

1, a kind of tire nitrogen filler, it is characterized in that: it includes tail gas blwr and tail gas filter and safety valve, the admission port of this tail gas blwr is connected with the tail gas connection pipe, on the tail gas connection pipe, safety valve is installed, the air extractor duct of this tail gas blwr is connected with the admission port of tail gas filter by connection pipe, be filled with active carbon particle in tail gas filter: described tail gas blwr is a gas gas blwr, it is provided with two by the series connected low-pressure admission mouth of pipeline and a supercharging air extractor duct, be provided with the breather cheek valve core in the low-pressure admission mouth, and be communicated with booster cavity on the valve piston, another low-pressure admission mouth is communicated with pressure chamber under the big piston; Be provided with the unidirectional spool of giving vent to anger in the supercharging air extractor duct, be provided with pressure spring on this unidirectional spool of giving vent to anger, unidirectional in this supercharging air extractor duct spool of giving vent to anger is communicated with booster cavity on the valve piston.

2, tire nitrogen filler according to claim 1, it is characterized in that: described tail gas filter comprises the inlet chamber and the filter chamber of rotating centrifugal, between the inlet chamber of rotating centrifugal and filter chamber, be provided with dividing plate, sidewall at the inlet chamber of rotating centrifugal is provided with the tangent line admission port, on the plate face of dividing plate, be provided with a circle along airintake direction bevelled inclined hole, active carbon particle is set in filter chamber, middle part at filter chamber is provided with freeing pipe, be connected with gas piping on this freeing pipe, this gas piping is connected with valve, is connected with compression indicator on the sidewall of gas piping.

3, tire nitrogen filler according to claim 2, it is characterized in that: the sidewall of described freeing pipe has filtering micropore.

4, tire nitrogen filler according to claim 1, it is characterized in that: the lower end at valve piston is connected with piston rod, the lower end of this piston rod connects big piston, in piston rod, be provided with blind hole under shed, in this blind hole, be provided with the reverse lever that stretches out downwards, on the shaft of this reverse lever, be socketed with fixing reversing cover, lower pole at reverse lever is connected with reversing valve core on one's body, bottom at the tail gas blwr of reversing valve core bottom is provided with ventilation orifice, is provided with through hole on the ring cowling on big piston top.