JP2015120513A - 耐クリープ性を向上させたプラスチック製燃料タンク及びその製造方法 - Google Patents
耐クリープ性を向上させたプラスチック製燃料タンク及びその製造方法 Download PDFInfo
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Abstract
【解決手段】下壁と、上壁と、これら2つの壁を接続する少なくとも1つの補強要素とを有するプラスチック製燃料タンクであって、補強要素が中空のプラスチックピラー3を含み、プラスチックピラー3はその下部に開口1を有し、かつその上部に開口2を有し、下部開口1と上部開口2とがそれぞれピラー3の充填とピラー3のガス抜きを可能にするような位置に配置されており、少なくとも中空ピラー3の一部がタンクで能動的役割を担う付属品6の構成要素である。
【選択図】図1
Description
(a)2つの別々の部分を有するプラスチック製のパリソンを、開いた2つのキャビティ(凹部)付きの型内に挿入する工程と、
(b)パリソンの2つの部分を固定する、又は、2つの部分の間のリンクを形成することができる補強要素の少なくとも一部分を支持するコアを、パリソンの内側に挿入する工程と、
(c)パリソンをコアを介して吹込成形することによって且つ/又は型のキャビティの後方に吸引力を生じさせることによって、パリソンをキャビティにしっかりと押し付ける工程と、
(d)コアを用いて、補強要素の一部分をパリソンの2つの部分のうちの少なくとも一方に固定する工程と、
(e)コアを引出す工程と、
(f)型を再び閉じ、それらの2つのキャビティを互いに合わせ、パリソンの2つの部分をキャビティの周囲に沿って把持して2つの部分を互いに溶着させる工程と、
(g)加圧流体を型内に注入し、且つ/又は、真空を型のキャビティの後方に生じさせてパリソンを型のキャビティにしっかりと押し付ける工程と、
(h)型を開いて燃料タンクを取出す工程。
− 充填は十分な原動力で(過大な圧力低下を引き起こさずに)実行される。5mm〜10mm程度の直径を有するオリフィスが非常に適切である。
− ガス抜きは、充填オリフィスの圧力低下より大きな圧力低下をもたらさない。実際には、10〜15mmの直径は非常に適切である。
− (燃料の移動による)波の影響を取り除き、それにより燃料油面測定ノイズを軽減すること。
− (測定要素の材料の選択により)寄生容量から測定要素を保護すること。
− この高感度な要素に堆積する燃料のフィルムの影響を低減すること。
ROVボール(4)と;
フロート(5)と;
換気管(8)がOリング(7)に開口し、換気オリフィス(9)を介してタンク(図示せず)の内部と連通するOリング(7)を使用して、ピラー(3)の下部に取り付けられた上部(6)と;及び最後に、
特に波発生の場合には、このオリフィス経由で入る液体燃料を防ぐためにオリフィス(9)と相対して位置するピラーの上部(10)とを含む。反転機能(ボール又はスプリング)を提供する他の要素とボール(4)とを取り替えることができることは注目されるべきである。
2・・・ガス抜き孔
3・・・中空ピラー
6・・・液体/蒸気分離器
Claims (13)
- 下壁と、上壁と、これら2つの壁を接続する少なくとも1つの補強要素とを有するプラスチック製燃料タンクであって、前記補強要素が中空のプラスチックピラーを含み、前記プラスチックピラーはその下部に開口を有し、かつその上部に開口を有し、前記下部開口と前記上部開口とがそれぞれ前記ピラーの充填と前記ピラーのガス抜きを可能にするような位置に配置されており、少なくとも前記中空ピラーの一部が前記タンクで能動的役割を担う付属品の構成要素であることを特徴とする燃料タンク。
- 前記中空ピラーが、所与の断面積を有する中央と、この中心の両端でより大きな断面積を有する2つの末端部とを含む筒状構造であることを特徴とする、請求項1に記載のタンク。
- 前記下部開口が前記タンクの下壁にできるだけ接近して位置付けされ、前記上部開口が前記タンクの最大の満杯レベル以上に位置していることを特徴とする、請求項1又は2に記載のタンク。
- 前記付属品がチャンバーに位置付けされた少なくとも1つの能動部品を含んでおり、少なくとも前記中空ピラーの一部がこのチャンバーの少なくとも一部を構成することを特徴とする、請求項1〜3のいずれか一項に記載のタンク。
- 前記付属品が、前記ピラーの側壁の少なくとも一部によって構成される側壁を有するチャンバーによって画定される液体/蒸気分離器(すなわち、LVS(Liquid/vapour separator))であることを特徴とする、請求項4に記載のタンク。
- 前記付属品がROVタイプ弁(反転弁(Roll Over Valve))及び/又はFLVVタイプ弁(給油制限ベント弁(Fill Limit Vent Valve))であり、前記ピラーに組み込まれた能動的な要素がフロートであり、前記中空ピラーの少なくとも一部は、前記フロートがスライドする前記チャンバーを構成することを特徴とする、請求項4に記載のタンク。
- 前記付属品が燃料逆流防止装置であることを特徴とする、請求項4に記載のタンク。
- 前記付属品が過充填予防装置であることを特徴とする、請求項4に記載のタンク。
- 前記付属品が容量計量器であることを特徴とする、請求項4に記載のタンク。
- タンクが溶融プラスチックパリソン又は溶融プラスチックシートから成形され、前記中空ピラーを導入するための開口を得るために、離型され冷却されたタンクが切断され、前記タンクの下壁及び上壁の両方の内面に存在する装着用レリーフに前記ピラーが固定されることを特徴とする、請求項1〜9のいずれか一項に記載のタンクを製造する方法。
- (管状パリソンを任意に切断して得られた)溶融プラスチックシートがキャビティとコアとを含む型で成形され、前記ピラー又はこのピラーのための付属構造の少なくとも一部が、コアを使用した成形中に前記タンクの前記(上及び下)壁に装着されることを特徴とする、請求項1〜9のいずれか一項に記載のタンクを製造する方法。
- 前記ピラーが、迅速な結合を可能にするレリーフをそれぞれ備えた2つの部品を含み、これらの部品がコアを使用するがクリップ固定することなく(溶接またはリベット打抜によって)パリソンの両側に装着され、離型後、前記タンクの収縮が2つの部品をクリップ固定するのに十分であり、且つ/又は、クリップ結合を行なう/補強するために、離型後、前記タンクの壁に外圧を(手動で又は機械によって)加えることを特徴とする、請求項11に記載の方法。
- 前記ピラーが単一の部品であり、溶接によってパリソンに取り付けられることを特徴とする、請求項11に記載の方法。
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Also Published As
Publication number | Publication date |
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WO2010122065A1 (en) | 2010-10-28 |
CN102414042A (zh) | 2012-04-11 |
KR20170021368A (ko) | 2017-02-27 |
JP6081505B2 (ja) | 2017-02-15 |
CA2757529A1 (en) | 2010-10-28 |
RU2524759C2 (ru) | 2014-08-10 |
JP2012524691A (ja) | 2012-10-18 |
EP2756977A1 (en) | 2014-07-23 |
CA2757529C (en) | 2018-06-12 |
BRPI1014589A2 (pt) | 2019-05-28 |
CN102414042B (zh) | 2015-12-02 |
EP2421721B1 (en) | 2014-04-16 |
RU2011147469A (ru) | 2013-05-27 |
MX2011011154A (es) | 2012-01-20 |
EP2421721A1 (en) | 2012-02-29 |
US20120037638A1 (en) | 2012-02-16 |
US20160067905A1 (en) | 2016-03-10 |
JP6049069B2 (ja) | 2016-12-21 |
KR20120016097A (ko) | 2012-02-22 |
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