JP2000118366A - Method and device for charging nitrogen gas into tire - Google Patents
Method and device for charging nitrogen gas into tireInfo
- Publication number
- JP2000118366A JP2000118366A JP10292367A JP29236798A JP2000118366A JP 2000118366 A JP2000118366 A JP 2000118366A JP 10292367 A JP10292367 A JP 10292367A JP 29236798 A JP29236798 A JP 29236798A JP 2000118366 A JP2000118366 A JP 2000118366A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- tire
- pressure
- passage
- filling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title 1
- 229910001873 dinitrogen Inorganic materials 0.000 title 1
- 239000007789 gas Substances 0.000 claims description 175
- 239000012528 membrane Substances 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 238000007599 discharging Methods 0.000 description 8
- 238000000926 separation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
Landscapes
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、N2ガス（濃度の高いN2
リッチガスを含む）をタイヤに充填するための方法及び
装置に関し、正規内圧が比較的低い乗用車用のタイヤか
ら正規内圧が高いトラック、バス等の大型タイヤに至る
まで、正規内圧の違いにかかわらずN2ガスを効率よく充
填しようとするものである。The present invention relates, N 2 gas (high concentration N 2
(Including rich gas) into tires, from tires for passenger cars with relatively low normal internal pressure to large tires such as trucks and buses with high normal internal pressure, regardless of the difference in normal internal pressure. It is intended to efficiently fill two gases.
【０００２】[0002]
【従来の技術】N2ガスは温度変化に極めて強い特徴があ
り、車両のタイヤにN2ガスを充填することによって高速
走行あるいは過酷な走行等においてタイヤの温度が上昇
してもタイヤ内圧が変化しないため走行性能の低下を防
止することが可能で乗り心地を改善するのに有利であ
り、これまでに高速走行が余儀なくされる航空機やＦ１
レーシングカーなど特殊なものに採用されていた。BACKGROUND OF THE INVENTION N 2 gas has a very strong feature to temperature changes, high speed or severe driving tire internal pressure change in the tire temperature is increased in such by filling with N 2 gas in the tire of the vehicle It is possible to prevent a decrease in the running performance because it does not cause an increase in ride comfort, and it is necessary to use an aircraft or F1 that has been forced to run at high speed until now.
It was used for special things such as racing cars.
【０００３】ところで、最近ではタイヤにおけるN2ガス
の充填がゴムやホイールの劣化等の防止効果があること
が一般に広く知られるようになってきているうえ、タイ
ヤの高性能化とも相まって一般ユーザーからN2ガスの充
填を求められる傾向にあり、とくに、カーショップや給
油所におけるサービスの一環としてN2ガスを迅速にタイ
ヤに充填することができる手段の開発が求められてい
た。In recent years, it has become widely known that the filling of tires with N 2 gas has an effect of preventing deterioration of rubber and wheels. There has been a trend to require the filling of N 2 gas, and in particular, there has been a demand for the development of means capable of rapidly filling the tire with N 2 gas as part of services at car shops and gas stations.
【０００４】これまでに知られているN2ガスの充填方式
としては、N2ガスが充填された市販のボンベを使用して
タイヤにN2ガスを充填する方法が知られている他、エア
コンプレッサーにて圧縮空気を送給して工業用活性炭に
てN2ガスのみを分離・精製してN2ガスを充填する方法、
あるいはガス成分の種類によって透過速度に差がでるの
を利用して空気からO2とN2を分離して高濃度のN2ガスを
供給するガス分離膜法が知られていた。[0004] The filler system of the N 2 gas known to date, besides a method of filling the N 2 gas in the tire using a commercially available bomb N 2 gas is filled is known, air A method in which compressed air is supplied by a compressor, and only N 2 gas is separated and purified by industrial activated carbon, and N 2 gas is charged.
Alternatively, there has been known a gas separation membrane method in which O 2 and N 2 are separated from air to supply a high-concentration N 2 gas by utilizing the difference in permeation speed depending on the type of gas component.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、N2ガス
を充填したボンベを使用した方法では、ボンベの在庫管
理や搬入、搬出等の手間がかかりボンベを設置する場所
を確保する必要がある等ランニングコストの面で不利が
あり、工業用活性炭を用いた方法では、上記のような不
具合はないものの、ある程度使用した後においては活性
炭に吸着したO2を一旦解放する再処理が必要でることか
らメンテナンスが必要不可欠であって、とくに活性炭の
再処理中にN2ガスの充填が求められた場合には対応でき
ない不利があった。また、活性炭を使用した方法ではN2
ガスの濃度を任意に設定できる利点があるが、１０００
kPa を超えるような圧縮空気を使用した場合には、その
構造上、タンク内に高圧のO2ガス (活性ガス) が溜まる
ので高圧ガス設備となるため、かかる設備の設置する場
所が規制される等の不具合があった。However, in a method using a cylinder filled with N 2 gas, it takes time to manage the stock of the cylinder, carry in and carry out the vessel, and it is necessary to secure a place for installing the cylinder. There is disadvantageous in terms of costs, the method using industrial activated carbon, although bug free as described above, maintenance since reprocessing is in need to temporarily release the O 2 adsorbed on the activated carbon in after some extent used Is indispensable, and there is a disadvantage that it is not possible to cope with the case where the N 2 gas filling is required during the reprocessing of the activated carbon. In the method using activated carbon, N 2
There is an advantage that the gas concentration can be set arbitrarily, but 1000
If compressed air exceeding kPa is used, high pressure O 2 gas (active gas) accumulates in the tank due to its structure, so it will be a high pressure gas facility, so the place where such equipment is installed is restricted. There was a problem such as.
【０００６】これに対してガス分離膜法は上記のような
不具合はなく、必要に応じて比較的迅速にN2ガスを充填
することができ、しかも１０００kPa を超える圧縮空気
を使用しても高圧のO2ガスが溜まるようなタンクを必要
としないので高圧ガス製造設備の適用（高圧ガス保安法
施行令第２条、第３条）を受けず広い分野で使用できる
利点があった。しかしながら、ガス分離膜法は上記の他
の２方式についてもいえることであるが、例えば乗用車
用タイヤやトラック・バス等の大型タイヤにN2ガスを充
填しようとする場合、N2ガスを充填すべきタイヤによっ
ては正規内圧が異なるため迅速な対応ができないところ
に問題を残していた。とくに、トラック・バス等の大型
タイヤは正規内圧が１０００kPa に近い圧力が必要にな
るから正規内圧が２００kPa 程度になる比較的低圧の乗
用車用タイヤを対象とする圧力でもって大型タイヤにN2
ガスを充填することができない。[0006] On the other hand, the gas separation membrane method does not have the above-mentioned disadvantages, and can be filled with N 2 gas relatively quickly if necessary. Since a tank for storing O 2 gas is not required, there is an advantage that it can be used in a wide range of fields without being applied to a high-pressure gas production facility (Articles 2 and 3 of the High Pressure Gas Safety Law Enforcement Order). However, the gas separation membrane process is is to be said for the other two methods described above, for example when trying to fill the N 2 gas to the large tires such as passenger car tires and truck and bus, to fill N 2 gas The problem remains in that it is not possible to respond quickly because the normal internal pressure differs depending on the tire to be used. In particular, N 2 in large tires large tires, such as trucks and buses with a pressure directed to the relatively low pressure tires for passenger cars of the normal inner pressure from normal internal pressure is required pressure close to 1000kPa is about 200kPa
Gas cannot be filled.
【０００７】本発明の目的は、正規内圧が異なるタイヤ
であってもN2ガスあるいはN2リッチガスを効率よく、し
かも迅速にタイヤ内に充填することができる新規な方法
およびその装置を提案するところにある。An object of the present invention, when normal inner pressure is to propose a novel method and apparatus can be filled with N 2 gas or N 2 rich gas be different tires efficiently, and quickly to the tire It is in.
【０００８】[0008]
【課題を解決するための手段】本発明は、リム組みした
タイヤにN2ガスを充填して正規内圧に保持するに当た
り、N2ガスの供給圧力をリム組みしたタイヤの正規内圧
に適合するように調整し、そのうえでN2ガスの充填を行
うことを特徴とするN2ガスをタイヤに充填するための方
法である。The present invention SUMMARY OF THE INVENTION may, when filled with N 2 gas to the rim and tire to hold the normal internal pressure, to fit the supply pressure of the N 2 gas to the normal internal pressure of the tires assembled rim It was adjusted to and the N 2 gas, characterized in Sonouede performing the filling of the N 2 gas method for filling the tire.
【０００９】また、本発明は、圧縮空気を送給する圧縮
空気送給通路と、圧縮空気をO2ガスとN2ガスに分離して
それぞれのガスを個別に通す少なくとも２本の送給通路
を有する膜モジュールを備えた装置において、N2ガスを
送給する通路に充填するタイヤの正規内圧に応じた圧力
に設定する圧力調整手段を設けたことを特徴とするN2ガ
スをタイヤに充填するための装置である。The present invention also provides a compressed air supply passage for supplying compressed air, and at least two supply passages for separating the compressed air into O 2 gas and N 2 gas and passing each gas individually. in apparatus having a membrane module having, filled with N 2 gas, characterized in that a pressure regulating means for setting the pressure corresponding to a normal inner pressure of the tire to be filled in the passage for feeding N 2 gas into the tire It is a device for performing.
【００１０】上記の装置において圧力調整手段は減圧弁
とする。また、N2ガスを送給する通路は膜モジュールを
経て２本に分岐したものでありそのうちの一方はトラッ
ク・バス等の車両に適用される大型タイヤに適合する高
い圧力になるN2ガスを送給する通路とし、もう一方は乗
用車等のタイヤに適合する比較的低い圧力になるN2ガス
を送給する通路つするのが本発明において有利に適合す
る。本発明において比較的低い圧力とは２００〜５５０
kPa 程度の範囲であり、大型タイヤに適合する高い圧力
とは５５０〜１４００kPa 程程度の範囲をいうこととす
る。In the above apparatus, the pressure adjusting means is a pressure reducing valve. The passage for supplying N 2 gas is branched into two via a membrane module, one of which is N 2 gas which has a high pressure suitable for large tires applied to vehicles such as trucks and buses. feed Kyusuru the passage of the other to one Kyusuru passageway feeding a N 2 gas of a relatively low pressure adapted to the tire, such as a passenger car fits advantageously in the present invention. In the present invention, the relatively low pressure is 200 to 550.
The high pressure suitable for a large tire means a range of about 550 to 1400 kPa.
【００１１】[0011]
【発明の実施の形態】本発明においては乗用車用あるい
はトラック・バス用など、リム組みしたタイヤに適合す
る内圧になるようにN2ガスの供給圧力を調整したうえで
N2ガスを充填するようにしたのでタイヤの用途の違いに
かかわらずN2ガスを充填する際の効率化を図るとができ
る。Such as for passenger cars or trucks and buses DETAILED DESCRIPTION OF THE INVENTION In the present invention, the supply pressure of the N 2 gas so as to conform the internal pressure in the rim-assembled tire in terms of adjusted
Since the N 2 gas is filled, the efficiency of filling the N 2 gas can be improved regardless of the use of the tire.
【００１２】[0012]
【実施例】以下、図面を用いて本発明をより具体的に説
明する。図１は、中空糸膜等からなる膜モジュールを備
えた本発明に従うN2ガス充填装置の構成を示した例であ
り、図２は図１の外観を示したものである。図中１はコ
ンプレッサー（図示せず）にて供給された圧縮空気を膜
モジュールｍに送給する圧縮空気送給通路、２は膜モジ
ュールｍにて空気より分離されたO2ガス（実際はO2リッ
チガス）を通すO2ガス送給通路、３は膜モジュールｍに
て空気より分離されたN2ガス（N2リッチガス）を通すN2
ガス送給通路であり、このN2ガス送給通路３はその下流
でトラック・バス等のタイヤの内圧充填に適合する圧力
の高いN2ガスを送給する通路３ａ（以下、高圧系N2ガス
通路３ａと記す）と、乗用車等のタイヤの内圧充填に適
合する圧力の比較的低いN2ガスを送給する通路３ｂ（以
下、低圧系N2ガス通路３ｂと記す）からなり、その先端
部はそれぞれタイヤのガス充填バルブ（図示せず）に接
続することができるようになっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described more specifically with reference to the drawings. FIG. 1 is an example showing the configuration of an N 2 gas filling apparatus according to the present invention provided with a membrane module made of a hollow fiber membrane or the like, and FIG. 2 shows the appearance of FIG. Figure 1 is a compressor feeding compressed air supplied at (not shown) in the membrane module m Kyusuru compressed air delivery passageway, 2 O 2 gas (in fact separated from the air by membrane module m O 2 O 2 gas delivery passageway through the rich gas), 3 pass N 2 gas separated from air by membrane module m (N 2 rich gas) N 2
The N 2 gas supply passage 3 is a passage 3a (hereinafter referred to as a high pressure system N 2) for supplying a high pressure N 2 gas downstream of the N 2 gas supply passage 3 that is suitable for filling the internal pressure of tires such as trucks and buses. and referred to as gas passage 3a), a relatively low N 2 gas feed to Kyusuru passage 3b of the pressure compatible with the inner pressure filling of the tire such as a passenger car (hereinafter, consists referred to as low-voltage N 2 gas passage 3b), a tip The sections can each be connected to a gas filling valve (not shown) of the tire.
【００１３】また、４は開閉弁、５は圧力計を備えたレ
ギュレータ（減圧弁）、６は空気の汚れを除去するエア
ーフィルター、７は圧縮空気中の水分を除去するミスト
フィルターであって、これら開閉弁４、レギュレータ
５、エアーフィルター６、ミストフィルター７は何れも
圧縮空気送給通路１に順次に配置される。Reference numeral 4 denotes an on-off valve, 5 a regulator (pressure reducing valve) having a pressure gauge, 6 an air filter for removing dirt from the air, 7 a mist filter for removing moisture in the compressed air, All of the on-off valve 4, regulator 5, air filter 6, and mist filter 7 are sequentially arranged in the compressed air supply passage 1.
【００１４】また、８は高圧系N2ガス通路３ａに設置さ
れた圧力計、９は低圧系N2ガス通路３ａに配置されたレ
ギュレータ（減圧弁）、そして１０は同じく低圧系N2ガ
ス通路３ａに配置された圧力計である。[0014] 8 pressure gauge installed in the high-voltage N 2 gas passage 3a, the regulator arranged in the low-voltage N 2 gas passage 3a (pressure reducing valve), and also the low-voltage N 2 gas passage 10 9 It is a pressure gauge arranged at 3a.
【００１５】上記の構成になる装置を適用して例えば、
リム組みした乗用車用のタイヤにN2ガスを充填するに
は、膜モジュールｍからのN2ガスを低圧系N2ガス通路３
ｂに配置したレギュレータ９にて減圧しリム組みタイヤ
の規定内圧に充填することができる圧力に調整してN2ガ
スの充填を行う。なお、この場合において大型タイヤに
N2ガスを充填しないときは高圧系N2ガス通路３a ではそ
の先端のバルブは閉じておく。 リム組みした大型タイヤに高圧のN2ガスを充填するに
は、膜モジュールｍからのN2ガスを高圧系N2ガス通路３
ａを通してその先端部からタイヤのバルブを通して充填
する。この場合において乗用車用タイヤにN2ガスを充填
しないときは低圧系N2ガス通路3bではその先端のバルブ
を閉じておく。By applying the apparatus having the above configuration, for example,
To fill the rim-assembled passenger car tire with N 2 gas, the N 2 gas from the membrane module m is supplied to the low-pressure N 2 gas passage 3.
under reduced pressure at a regulator 9 disposed in b to adjust the pressure that can be filled with the provisions internal pressure of the rim tire performs filling of N 2 gas. In this case, the large tire
When the N 2 gas is not charged, the valve at the tip of the high-pressure N 2 gas passage 3a is closed. To fill the high-pressure N 2 gas to rim larger tires, high-voltage N 2 gas passage 3 and N 2 gas from the membrane module m
a through the tire valve from its tip. When not filled with N 2 gas kept closed a valve low-voltage N 2 gas passage 3b in the front end in a tire for a passenger car in this case.
【００１６】上記の例ではモジュールｍの出側に設けた
N2ガス送給通路３を、高圧系N2ガス通路３ａと低圧系N2
ガス通路３ｂとに分岐させた例について示したが、これ
を単一の通路として、ここに圧力調整手段を設けて充填
すべきタイヤに適合する圧力に調整してN2ガスの充填を
行うようにしてもよい。In the above example, the module m is provided on the output side.
The N 2 gas feed passage 3, the high-voltage N 2 gas passage 3a and the low-voltage N 2
Has been shown an example in which is branched into a gas passage 3b, which as a single passage, here to make adjustments to the filling of the N 2 gas to a pressure compatible with the tire to be filled by providing a pressure regulating means It may be.
【００１７】N2ガス送給通路３にホルダーを設けてお
き、ここにN2ガスを充填しておくこともでき、これによ
って各種タイヤへの迅速な対応が可能になる。It is also possible to provide a holder in the N 2 gas supply passage 3 and fill it with N 2 gas, thereby enabling quick response to various tires.
【００１８】リム組みしたタイヤにおいて内圧を充填す
る前には該タイヤ内には空気が入っておりN2ガスがおよ
そ８０％、O2ガスがおよそ２０％含まれている。ここで
例えば乗用車用タイヤを対象とした場合、タイヤの内圧
は約２００kPa であるので濃度が１００％になるN2ガス
を充填してもタイヤ内のN2ガスの濃度は９３％程度、す
なわち、O2ガスが７％程度含んでいることになり、N2ガ
スの充填によるより一層の効果を期待するためにはかか
るO2ガスをさらに低減する必要がある。Before filling the internal pressure in the rim-assembled tire, the tire contains air and contains about 80% of N 2 gas and about 20% of O 2 gas. Here, for example, in the case of a tire for a passenger car, since the internal pressure of the tire is about 200 kPa, the concentration of the N 2 gas in the tire is about 93% even if the N 2 gas having a concentration of 100% is filled, that is, Since the O 2 gas contains about 7%, it is necessary to further reduce the O 2 gas in order to expect a further effect by filling the N 2 gas.
【００１９】タイヤ内の残存空気を低減してN2ガスをよ
り濃度の高い状態でタイヤに充填するには、まず、図１
に示したような構成になる装置のN2ガス送給経路３に図
３に示す如く排気経路１１、１２を別途設けておき、N2
ガスを充填するに先立ち真空ポンプによってタイヤ内の
空気を排出して該タイヤ内を大気圧よりも低い状態に
し、その後に該タイヤ内にN2ガスを充填する。In order to reduce the residual air in the tire and fill the tire with a higher concentration of N 2 gas, first, FIG.
Advance separately provided exhaust path 11 and 12 as shown in FIG. 3 in N 2 gas feed path 3 configuration to become apparatus as shown in, N 2
Gas and discharge the air in the tire by a vacuum pump prior to filling the inside of the tire to lower than atmospheric pressure, and then to fill the N 2 gas within the tire.
【００２０】上記のような空気の排出操作を行うことな
しに、タイヤ内の残存空気をより一層低減するには、N2
ガスの充填中に少なくとも一回タイヤ内の充填気体を大
気中へ排出するのがよく、これによって残存空気とN2ガ
スを置換することができるのでタイヤ内におけるN2ガス
の濃度を高めることができる。具体的には、N2ガス送給
通路３の先端をタイヤのバルブに接続してN2ガスを供給
する。そして、タイヤの内圧が予定してある圧力に達し
た時点、あるいは予定の注入時間に達した時点でN2ガス
の供給を停止するとともにタイヤ内の充填気体を排出
し、次いで再度N2ガスを供給して正規内圧までN2ガスを
充填する。In order to further reduce the residual air in the tire without performing the air discharging operation as described above, it is necessary to use N 2
The filling gas at least once within the tire during the filling of the gas well to discharge to the atmosphere, thereby to increase the concentration of N 2 gas in the tire it is possible to replace the remaining air and N 2 gas it can. Specifically, for supplying N 2 gas by connecting the distal end of the N 2 gas feed passage 3 to the valve of the tire. Then, when the internal pressure of the tire reaches a predetermined pressure, or when a predetermined injection time is reached, the supply of N 2 gas is stopped and the gas filling in the tire is discharged, and then the N 2 gas is again supplied. Supply and fill with N 2 gas to normal internal pressure.
【００２１】タイヤ内の空気を一旦排出してN2ガスを充
填する場合には、N2ガス送給通路３を図３に示した排気
経路を利用し、真空ポンプを作動させて、ここからタイ
ヤ内の空気を抜き取り、即座に開閉バルブを切り換えて
N2ガスの注入を行えばよい。[0021] When you temporarily discharging air in the tire is filled with N 2 gas, using an exhaust path shown an N 2 gas feed passage 3 in FIG. 3, by operating the vacuum pump, from which Bleed air from the tires and immediately switch the open / close valve
N 2 gas may be injected.
【００２２】N2ガスの供給は次の手順に従う。開閉弁４
を開にしておき、レギュレータ９を閉じておく。そして
コンプレッサーにて圧縮空気を送給通路１に導入し、レ
ギュレータ９を調整して徐々に圧力を上昇させていき所
定の圧力に保持する。The supply of N 2 gas follows the following procedure. On-off valve 4
Is open, and the regulator 9 is closed. Then, compressed air is introduced into the supply passage 1 by the compressor, and the pressure is gradually increased by adjusting the regulator 9 to maintain the pressure at a predetermined value.
【００２３】ここで、この種の装置において設置される
膜モジュールとして例えばポリイミド製の分離膜を使用
することができ、ここに圧縮空気を通すことにより透過
速度に差が生じるのを利用してO2を除去する一方で、高
濃度のN2ガスを得ることが可能であり、膜モジュールｍ
のN2ガス送給通路３における圧力はレギュレーター５に
おける圧力よりも５０〜１００kPa 程度低い値を示すこ
とになるのでN2ガスの供給圧力はこの点を考慮に入れて
設定する。される。Here, a separation module made of, for example, polyimide can be used as a membrane module installed in this type of apparatus. While removing 2 , it is possible to obtain a high concentration of N 2 gas,
Since the pressure in the N 2 gas supply passage 3 indicates a value about 50 to 100 kPa lower than the pressure in the regulator 5, the supply pressure of the N 2 gas is set in consideration of this point. Is done.
【００２４】N2ガス送給通路３には図示はしないが酸素
濃度計を設置して該通路内を通るN2ガスの濃度がどの程
度にあるかを確認しつつリム組みしたタイヤ内にN2ガス
を充填する。Although not shown, an oxygen concentration meter is installed in the N 2 gas supply passage 3 to check the concentration of N 2 gas passing through the passage, and to check the concentration of N 2 gas in the rim-assembled tire. 2 Fill the gas.
【００２５】N2ガスを充填するに先立ち例えば、タイヤ
内の空気を半分程度排出してから、N2ガスを充填すると
内圧充填後のO2濃度は約５％程度になる。また、タイヤ
内の空気を排出を行わずにリム組みしたタイヤにN2ガス
を充填して内圧を例えば２００kPa としその後にタイヤ
の内圧が１００kPa になるまで充填気体を大気中へ放出
し、次いでN2ガスを充填することによって内圧充填後に
おけるO2ガスの濃度を約５％程度にまで低減することが
できる。Prior to filling with N 2 gas, for example, if the air in the tire is exhausted by about half and then filled with N 2 gas, the O 2 concentration after filling with the internal pressure becomes about 5%. Further, the rim-assembled tire is filled with N 2 gas without discharging the air in the tire to set the internal pressure to 200 kPa, for example, and then the filled gas is released to the atmosphere until the internal pressure of the tire becomes 100 kPa. by filling 2 gas can be reduced the concentration of O 2 gas after internal pressure up to about about 5%.
【００２６】膜モジュールを備えたN2ガス充填装置で
は、例えばN2ガス送給通路３にガス流量調整手段を設置
しておき、この手段にてN2ガスの単位時間当たりの流量
を、圧縮空気送給通路１における圧縮空気の単位時間当
たりの流量よりも小さくすると、N2ガスの流量が小さく
なるに従い膜モジュール内の圧力が高まるのでN2ガスの
濃度は上昇（トラック・バスなどの大型タイヤにおいて
は供給充填圧は１０００kPa 程度あるいは１０００kPa
を圧力に設定する）することになり（N2ガスとO2ガスと
を分離する際により多くの時間をかけることになるか
ら) 、タイヤの内圧充填用ガスとしてはより好適なもの
となる(N2 ガスの圧力と流量は圧縮空気の圧力と流量に
依存する) が、ガスの充填中にタイヤ内の充填気体を一
旦排出する操作を行う場合、N2ガスを濃度の高い状態で
規定内圧まで充填するのにかかる時間が延長される傾向
になる。このため、より濃度の高いN2ガスを短時間で充
填できるようにするには、N2ガス送給通路３にホルダー
を設けておき、ここに、濃度の高いN2ガスを貯蔵し、ユ
ーザーの要求に応じてホルダからN2ガスを供給すれば迅
速な対応ができる。In an N 2 gas filling apparatus equipped with a membrane module, for example, a gas flow rate adjusting means is installed in the N 2 gas supply passage 3, and the flow rate of the N 2 gas per unit time is reduced by this means. When the flow rate of the compressed air in the air supply passage 1 is smaller than the flow rate per unit time, the pressure in the membrane module increases as the flow rate of the N 2 gas decreases, so that the concentration of the N 2 gas increases. For tires, the supply filling pressure is about 1000 kPa or 1000 kPa
Is set to the pressure) (since it takes more time to separate the N 2 gas and the O 2 gas), so that the gas for filling the internal pressure of the tire is more suitable ( pressure and flow rate of N 2 gas is dependent on the pressure and flow rate of the compressed air), when performing an operation for temporarily discharging the filled gas in the tire during filling of the gas, defining the N 2 gas at a high concentration state pressure The time it takes to fill until the temperature tends to be extended. For this reason, in order to be able to fill the N 2 gas with a higher concentration in a short time, a holder is provided in the N 2 gas supply passage 3, where the N 2 gas with a higher concentration is stored, and It can respond quickly if the N 2 gas is supplied from the holder in response to the request.
【００２７】なお、膜モジュールｍから排出されるO2ガ
スはその濃度が３５％程度にもおよぶO2リッチガスであ
るからとくに火気や可燃物等から離れた換気のよい場所
を選定する必要がある。Since the O 2 gas discharged from the membrane module m is an O 2 rich gas having a concentration of about 35%, it is necessary to select a well-ventilated place away from fires and combustibles. .
【００２８】本発明においては、膜モジュールｍを一つ
のみ配置した例を示したが、膜モジュールの台数は必要
に応じて増加することができ、その配列は直列配列であ
っても、また、並列配列であってもかまわない。In the present invention, an example is shown in which only one membrane module m is arranged. However, the number of membrane modules can be increased as required. It may be a parallel array.
【００２９】上掲図１に示したような構成になるN2ガス
充填装置を使用し、圧縮空気の供給圧をそれぞれ５２０
（PS）、１０３０（TB）kPa 、 また、膜モジュールの出
側におけるN2ガスの圧力を５００（PS）、１０００（T
B）kPa に設定してサイズが１９５／６５Ｒ１５ Ｇ０
３になる乗用車タイヤ（規定内圧２４０kPa ）とサイズ
が１０００Ｒ２０Ｍ７１１になるトラック・バス用の大
型タイヤ（規定内圧７２５kPa ）にN2ガスを充填した場
合における充填作業性、タイヤ内におけるN2ガスの濃度
について調査した。Using an N 2 gas filling apparatus having the structure shown in FIG.
(PS), 1030 (TB) kPa, and the pressure of the N 2 gas at the outlet side of the membrane module is 500 (PS), 1000 (T
B) Set to kPa and size is 195 / 65R15 G0
Filling workability when filled with N 2 gas to the passenger car tire according to the 3 large tires (defined internal pressure 240 kPa) and size for trucks and buses to be 1000R20M711 (defined pressure 725kPa), the concentration of N 2 gas in the tire investigated.
【００３０】タイヤ内に残存した空気を排出することな
しにN2ガスを充填した場合（例１）には乗用車タイヤで
は、充填にかかる時間は４０秒であり、タイヤ内におけ
るN2ガスの濃度は９３％であり、大型タイヤでは、充填
にかかる時間は６分であり、タイヤ内におけるN2ガスの
濃度は９５％であった。When the N 2 gas is filled without discharging the air remaining in the tire (Example 1), the filling time is 40 seconds for the passenger car tire, and the concentration of the N 2 gas in the tire is 40 seconds. Was 93%, the filling time of the large tire was 6 minutes, and the concentration of N 2 gas in the tire was 95%.
【００３１】また、タイヤ内の空気を３０％程度排出し
てN2ガスを充填した場合（例２）には乗用車タイヤで
は、充填にかかる時間は５０秒であり、タイヤにおける
N2ガスの濃度は９４％であった。大型タイヤについて
は、充填にかかる時間は６分４０秒であり、タイヤ内に
おけるN2ガスの濃度は９６％であった。When about 30% of the air in the tire is exhausted and filled with N 2 gas (Example 2), the time required for filling is 50 seconds for a passenger car tire, and
The concentration of the N 2 gas was 94%. For the large tire, the filling time was 6 minutes and 40 seconds, and the concentration of N 2 gas in the tire was 96%.
【００３２】タイヤ内の空気を排出することなしにN2ガ
スを（ＰＳ）４０秒、（ＴＢ）３６０秒間注入したのち
タイヤ内の充填気体を排出してN2ガスを充填した場合
（例３）には、乗用車タイヤでは、充填にかかる時間は
合計で８０秒であり、タイヤにおけるN2ガスの濃度は９
７％であった。大型タイヤでは充填時間は合計で６４０
秒で、N2の濃度は９８．５％であった。Injecting N 2 gas for (PS) for 40 seconds and (TB) for 360 seconds without discharging the air in the tire, and then discharging the filling gas in the tire to fill the N 2 gas (Example 3) )), For a car tire, the time required for filling is 80 seconds in total, and the concentration of N 2 gas in the tire is 9%.
7%. For large tires, the filling time is 640 in total
Seconds, the concentration of N 2 was 98.5%.
【００３３】さらに、タイヤ内の空気を排出することな
しにN2ガスを１０秒間注入したのちタイヤ内の充填気体
を排出してN2ガスを充填した場合（例４）においては乗
用車タイヤでは充填時間が６０秒、タイヤ内のN2ガスの
濃度が９５％であり、大型タイヤについては充填時間が
４８０秒、N2ガスの濃度が９７％であった。Further, when N 2 gas is injected for 10 seconds without discharging the air in the tire, and then the filling gas in the tire is discharged and filled with the N 2 gas (Example 4), the filling in the passenger car tire is performed. time 60 seconds, the concentration of N 2 gas in the tire is 95%, the filling time for the large tires is 480 seconds, the concentration of N 2 gas was 97%.
【００３４】[0034]
【発明の効果】本発明によれば、乗用車やトラック・バ
ス等のサイズの違いに係わらずリム組みしたタイヤに迅
速にN2ガスを充填することが可能であり、タイヤ内に残
存する空気（O2ガス）の割合も極めて少なくできるの
で、N2ガスの充填によるメリットを最大限に生かし得
る。According to the present invention, it is possible to quickly fill N 2 gas to the rim-assembled tire regardless of differences in size, such as cars and trucks and buses, air remaining in the tire ( Since the ratio of O 2 gas can be extremely reduced, the merit of filling with N 2 gas can be maximized.
【図１】本発明に従う充填装置の構成を示した図であ
る。FIG. 1 is a diagram showing a configuration of a filling device according to the present invention.
【図２】図１に示した装置の外観を示した図である。FIG. 2 is a diagram showing an appearance of the apparatus shown in FIG.
【図３】本発明に従う充填装置の他の構成例を示した図
である。FIG. 3 is a diagram showing another configuration example of the filling device according to the present invention.
１ 圧縮空気送給通路 ２ O2ガス送給通路 ３ N2ガス送給通路 ４ 開閉弁 ５ レギュレーター ６ エアフィルター ７ ミストフィルター ８ 圧力計 ９ レギュレーター 10 圧力計 11 排気経路 12 排気経路DESCRIPTION OF SYMBOLS 1 Compressed air supply passage 2 O 2 gas supply passage 3 N 2 gas supply passage 4 On-off valve 5 Regulator 6 Air filter 7 Mist filter 8 Pressure gauge 9 Regulator 10 Pressure gauge 11 Exhaust path 12 Exhaust path
Claims (4)
正規内圧に保持するに当たり、 N2ガスの供給圧力をリム組みしたタイヤの正規内圧に適
合するように調整し、そのうえでN2ガスの充填を行うこ
とを特徴とするN2ガスをタイヤに充填するための方法。1. A Upon the rim-assembled tire filled with N 2 gas maintained at normal internal pressure, and adjusting the supply pressure of the N 2 gas to conform to the normal internal pressure of the tires assembled rim, Sonouede N 2 gas the method for filling the N 2 gas which is characterized in that the filling into the tire.
と、圧縮空気をO2ガスとN2ガスに分離してそれぞれのガ
スを個別に通す少なくとも２本の送給通路を有する膜モ
ジュールを備えた装置において、 N2ガスを送給する通路に充填するタイヤの正規内圧に応
じた圧力に設定する圧力調整手段を設けたことを特徴と
するN2ガスをタイヤに充填するための装置。2. A membrane module having a compressed air supply passage for supplying compressed air, and at least two supply passages for separating the compressed air into O 2 gas and N 2 gas and passing each gas individually. in apparatus provided with a device for the N 2 gas filled into the tire, characterized in that a pressure regulating means for setting the pressure corresponding to a normal inner pressure of the tire to be filled in the passage for feeding N 2 gas .
載の装置。3. The apparatus according to claim 2, wherein the pressure adjusting means is a pressure reducing valve.
経て２本に分岐したものでありそのうちの一方はトラッ
ク・バス等の車両に適用される大型タイヤに適合する高
い圧力になるN2ガスを送給する通路であり、もう一方は
乗用車等のタイヤに適合する比較的低い圧力になるN2ガ
スを送給する通路である、請求項２記載の装置。4. A passage for supplying N 2 gas is branched into two via a membrane module, one of which has a high pressure N suitable for large tires applied to vehicles such as trucks and buses. 3. The apparatus according to claim 2, wherein the passage is for supplying two gases, and the other is for supplying N2 gas having a relatively low pressure suitable for a tire of a passenger car or the like.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29236798A JP3887498B2 (en) | 1998-10-14 | 1998-10-14 | Apparatus for filling tires with N2 gas |
| US09/417,542 US6234217B1 (en) | 1998-10-14 | 1999-10-14 | Process and apparatus for filling N2 gas into tire |
| CA002286485A CA2286485C (en) | 1998-10-14 | 1999-10-14 | Process and apparatus for filling n2 gas into tire |
| EP99308110A EP0994002A3 (en) | 1998-10-14 | 1999-10-14 | Process and apparatus for filling N2 gas into tire |
| US09/828,930 US6374869B2 (en) | 1998-10-14 | 2001-04-10 | Process and apparatus for filling N2 gas into tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29236798A JP3887498B2 (en) | 1998-10-14 | 1998-10-14 | Apparatus for filling tires with N2 gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000118366A true JP2000118366A (en) | 2000-04-25 |
| JP3887498B2 JP3887498B2 (en) | 2007-02-28 |
Family
ID=17780893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29236798A Expired - Lifetime JP3887498B2 (en) | 1998-10-14 | 1998-10-14 | Apparatus for filling tires with N2 gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3887498B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004017955A (en) * | 2002-06-19 | 2004-01-22 | Fukuhara Co Ltd | Nitrogen gas generating device for tire filling |
| GB2490779A (en) * | 2011-05-13 | 2012-11-14 | Pneumatic Components Ltd | Device for filling vehicle tyres with nitrogen |
-
1998
- 1998-10-14 JP JP29236798A patent/JP3887498B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004017955A (en) * | 2002-06-19 | 2004-01-22 | Fukuhara Co Ltd | Nitrogen gas generating device for tire filling |
| GB2490779A (en) * | 2011-05-13 | 2012-11-14 | Pneumatic Components Ltd | Device for filling vehicle tyres with nitrogen |
| US8443852B2 (en) | 2011-05-13 | 2013-05-21 | Pneumatic Components Limited | Tyre inflation/deflation device |
| GB2490779B (en) * | 2011-05-13 | 2013-11-06 | Pneumatic Components Ltd | Tyre inflation/deflation device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3887498B2 (en) | 2007-02-28 |
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