JPH0196464A - Fuel injector for engine - Google Patents

Fuel injector for engine

Info

Publication number
JPH0196464A
JPH0196464A JP62251464A JP25146487A JPH0196464A JP H0196464 A JPH0196464 A JP H0196464A JP 62251464 A JP62251464 A JP 62251464A JP 25146487 A JP25146487 A JP 25146487A JP H0196464 A JPH0196464 A JP H0196464A
Authority
JP
Japan
Prior art keywords
delivery
fuel injection
injection valve
delivery pipe
vibe
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.)
Pending
Application number
JP62251464A
Other languages
Japanese (ja)
Inventor
Michinobu Ikeda
池田　道信
Akira Takeshita
明 竹下
Kazumi Okamura
和美 岡村
Koichi Kondo
浩一 近藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP62251464A priority Critical patent/JPH0196464A/en
Publication of JPH0196464A publication Critical patent/JPH0196464A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
    • F02M61/145—Arrangements of injectors with respect to engines; Mounting of injectors the injection nozzle opening into the air intake conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
    • F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/85—Mounting of fuel injection apparatus
    • F02M2200/856—Mounting of fuel injection apparatus characterised by mounting injector to fuel or common rail, or vice versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

PURPOSE:To improve hot restart and secure fixedly a fuel injection valve by forming a delivery pipe of synthetic resin and providing an urging member for urging the delivery pipe. CONSTITUTION:Fuel injection valve 10 is sandwiched fixedly between an intake path constituting member 2 and a delivery pipe 6. The delivery pipe 6 is formed of synthetic resin. An urging member 11 for urging the delivery pipe 6 is provided to press the fuel injection valve 10 towars the intake path constituting member 2 side. Thus, the heat insulating property of delivery pipe is improved and hot restart is improved. Also, the fuel injection valve can be secured fixedly against vibrations in travelling.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明はエンジンの燃料噴射装置に関するものである。[Detailed description of the invention] (Industrial application field) The present invention relates to a fuel injection device for an engine.

（従来技術） 電子制御による燃料噴射式１ンジンの場合、燃料噴射弁
は、吸気通路構成部材（例えばシリンダヘッド、吸気マ
ニホルド）とデリバリパイプとの間に挟み込まれて固定
される。すなわち、燃料噴射弁の先端部が吸気通路構成
部材の取付孔（吸気通路に連通している）に嵌挿される
一方、燃料噴射弁の基端部がデリバリパイプの接続口（
デリバリパイプ内の燃料通路に連通している）に嵌挿さ
れる。(Prior Art) In the case of an electronically controlled fuel injection type one engine, a fuel injection valve is fixed by being sandwiched between an intake passage forming member (for example, a cylinder head, an intake manifold) and a delivery pipe. That is, the tip of the fuel injector is fitted into the mounting hole of the intake passage component (which communicates with the intake passage), while the base end of the fuel injection valve is inserted into the connection port of the delivery pipe (
(which communicates with the fuel passage in the delivery pipe).

上述のようにして燃料噴射弁を固定する場合。When fixing the fuel injector as described above.

振動等による不用意な固定解除を避けるため、燃料噴射
弁は吸気通路構成部材とデリバリパイプとの間にかなり
強い力で挟み込まれていることになる。そして、この強
い挟み込みを行うため、デリバリパイプは、一般に、ア
ルミニウム合金などの金属を鋳造することにより形成さ
れている。In order to avoid inadvertent release of fixation due to vibration or the like, the fuel injection valve is held between the intake passage component and the delivery pipe with a fairly strong force. In order to perform this strong pinching, the delivery pipe is generally formed by casting a metal such as an aluminum alloy.

（発明が解決しようとする問題点） しかしながら、デリバリパイプを金属により構成した場
合、このデリバリパイプそのものすなわちその内部の燃
料がエンジンの発生ずる熱を受けて高熱になり易く、こ
のためエンジンの温間再始動性が悪化し易いものとなっ
ていた。すなわち、エンジンが十分に暖機された状態で
一部エンジンを停市した後、すぐに再始動しようとする
と、デリバリパイプが金属で熱伝導性が良好なためこの
内部の燃料が加温されでしまうことになる。(Problem to be Solved by the Invention) However, when the delivery pipe is made of metal, the delivery pipe itself, that is, the fuel inside it, is likely to receive heat generated by the engine and become extremely hot. Restartability was likely to deteriorate. In other words, if you try to restart the engine immediately after partially stopping the engine when it has warmed up sufficiently, the fuel inside the delivery pipe will heat up because it is metal and has good thermal conductivity. It will end up being put away.

したがって、本発明の目的は、燃料噴射弁を吸気通路構
成部材とデリバリバイブとの間に挟み込んで固定するよ
うにしたものにおいて、温間再始動性が良好なるように
したエンジンの燃料噴射装置を提供することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a fuel injection device for an engine in which a fuel injection valve is sandwiched and fixed between an intake passage constituting member and a delivery vibe, and which has good warm restartability. It is about providing.

（問題点を解決するための手段、作用）前述の目的を達
成するため、本発明にあっては、デリバリバイブを合成
樹脂により形成する一方、このデリバリバイブを、燃料
噴射弁が吸気通路構成部材側へ向けて押圧されるように
付勢する付勢部材を設けである。(Means and operations for solving the problem) In order to achieve the above-mentioned object, in the present invention, the delivery vibe is formed of synthetic resin, and the delivery vibe is connected to the intake passage forming member of the fuel injection valve. A biasing member is provided that biases the device so that it is pressed toward the side.

このように、デリバリバイブを合成樹脂により形成した
ため、金属で形成する場合に比してはるかに断熱性がよ
く、したがって温間再始動性が良好となる。As described above, since the delivery vibe is made of synthetic resin, it has much better heat insulation properties than when made of metal, and therefore has good warm restartability.

また、付勢部材、例えば金属プレートにより、デリバリ
バイブを上記所定方向へ向けて付勢するようにしたので
、燃料噴射弁をしっかりと固定しておくことができる。Further, since the delivery vibe is biased in the predetermined direction using the biasing member, for example, a metal plate, the fuel injection valve can be firmly fixed.

（実施例） 以下本発明の゛実施例を添付した図面に基づいて説明す
る。(Example) An example of the present invention will be described below based on the attached drawings.

第１図において、ｌは直列４気筒とされたエンジンのシ
リンダヘッドで、これには既知のように、吸気通路の一
部を構成する吸気ボート２が形成されている。このシリ
ンダへ・ソド１には、吸気マニホルド３が図示を略すボ
ルトによって固定され、吸気マニホルド３内の分岐通路
４が吸気ボート２と連通されている。In FIG. 1, l is a cylinder head of an in-line four-cylinder engine, and as is known, an intake boat 2 forming a part of an intake passage is formed on this cylinder head. An intake manifold 3 is fixed to the cylinder 1 by bolts (not shown), and a branch passage 4 within the intake manifold 3 is communicated with the intake boat 2.

吸気マニホルド３の上面には、取付部３ａが一体成形さ
れ、この取付部３ａに対して、ボルト５によってデリバ
リバイブ６が固定されている。このデリバリバイブ６は
、気筒配列方向（第１図紙面直角方向）に長く伸びてい
る。このデリバリバイブ６は、例えばナイロン６（タル
ク２０％入り）等の合成樹脂により形成されている。な
お、このデリバリバ・イブ６内の燃料通路構成そのもの
は、合成樹脂で形成されている点を除き実質的に従来の
金属性のものと同じように形成されている。すなわち、
第５図に示すように、気筒配列方向に長く伸びる共通燃
料通路７と、該共通燃料通路７にそれぞれ連なる気筒数
に応じた数の燃料噴射弁用接続Ｄ　８と、を有し、共通
燃料通路７の各端が燃料の流入［］７ａあるいは流出ロ
アｂとされている。A mounting portion 3a is integrally formed on the upper surface of the intake manifold 3, and a delivery vibe 6 is fixed to the mounting portion 3a with bolts 5. This delivery vibe 6 extends long in the cylinder arrangement direction (direction perpendicular to the plane of the paper in FIG. 1). The delivery vibe 6 is made of synthetic resin such as nylon 6 (containing 20% talc). Incidentally, the fuel passage structure itself within the delivery liver 6 is substantially the same as a conventional metal one, except that it is made of synthetic resin. That is,
As shown in FIG. 5, it has a common fuel passage 7 extending long in the cylinder arrangement direction, and a number of fuel injection valve connections D8 corresponding to the number of cylinders connected to the common fuel passage 7. Each end of the passage 7 serves as a fuel inflow [] 7a or an outflow lower b.

デリバリバイブ６は、また、第５図にも示すように、合
計２つの取付部６ａを有し、この取付部６ａを吸気マニ
ホルド３の取付部３ａに着座させた状態で、前述のよう
にボルト５によって当該吸気マニホルドに固定される。The delivery vibe 6 also has a total of two attachment parts 6a, as shown in FIG. 5 to the intake manifold.

シリンダヘッド１近傍において、吸気マニホルド３の上
面には、燃料噴射弁用取付孔９が形成されている。この
取付孔９は、吸気マニホルド３の通路４に連通しており
、このような取付孔９に、燃料噴射弁１０の先端部が嵌
挿されている。この燃料噴射弁１０の基端部は、デリバ
リバイブ６の接続【］８に嵌挿されている。したがって
、流入１］７ａよりデリバリパイプ６内（共通燃料通路
７）に流入された燃料は、各接続口８より分流されて、
燃料噴射弁１０が開となったときに吸気通路（吸気ボー
ト２、分岐通路４）へ噴射される。A fuel injection valve mounting hole 9 is formed in the upper surface of the intake manifold 3 near the cylinder head 1 . The mounting hole 9 communicates with the passage 4 of the intake manifold 3, and the tip of the fuel injection valve 10 is fitted into the mounting hole 9. The base end of the fuel injection valve 10 is fitted into the connection [ ] 8 of the delivery vibe 6 . Therefore, the fuel that flows into the delivery pipe 6 (common fuel passage 7) from the inflow 1] 7a is divided from each connection port 8, and
When the fuel injection valve 10 is opened, the fuel is injected into the intake passage (intake boat 2, branch passage 4).

上述した燃料噴射弁１０は、吸気マニホルド３とデリバ
リバイブ６とによって、その軸方向から強く挟み込まれ
た状態で固定される。すなわち、燃料噴射弁ｌＯの先端
フランジ部１０ａが吸気マニホルド３のうち取付孔９の
開し］端面に当接され、また燃料噴射弁１０の基端フラ
ンジ部１０ｂが、デリバリバイブ６のうち接続口８の開
ＬＴＩ端面に当接される。The above-described fuel injection valve 10 is fixed in a state where it is strongly sandwiched between the intake manifold 3 and the delivery vibe 6 in the axial direction thereof. That is, the tip flange portion 10a of the fuel injection valve IO is brought into contact with the opening end of the mounting hole 9 of the intake manifold 3, and the base end flange portion 10b of the fuel injection valve 10 is brought into contact with the connection port of the delivery vibe 6. It is brought into contact with the open LTI end face of No.8.

十記燃料噴射弁１０の挟み込み形成による固定をしっか
りと行うため、デリバリバイブ６には、第２図に示すよ
うな付勢部材１１が設けられている。この付勢部材１１
は、実施例ではばね羽根等の金属板をプレス成形するこ
とにより形成されている。この付勢部材１１は、第２図
、第３図に示すように、本体部１１ａと、デリバリバイ
ブ６の取付部６ａに対応して形成された２つの取付部１
１ｂを有する。Ｆ証本体部１１ａと取付部１１ｂとはほ
ぼ直角とされ、取付部１１ｂが、前述したボルト５によ
って、デリバリバイブ６（の取付部６ａ）と共に共線め
されている（第１図参照）。In order to securely fix the fuel injection valve 10 by sandwiching it, the delivery vibe 6 is provided with a biasing member 11 as shown in FIG. This biasing member 11
In the embodiment, these are formed by press-forming a metal plate such as a spring blade. As shown in FIGS. 2 and 3, this biasing member 11 has a main body portion 11a and two attachment portions 1 formed corresponding to the attachment portion 6a of the delivery vibe 6.
1b. The F-certificate main body portion 11a and the attachment portion 11b are approximately at right angles, and the attachment portion 11b is collinear with (the attachment portion 6a of) the delivery vibe 6 by the aforementioned bolt 5 (see FIG. 1).

そして５この付勢部材１１の取付部１１ｂは、ボルト５
が挿通される筒状部１１ｂ−１を有し、この通常部１１
ｂ−１が、デリバリバイブ６の取付部６ａに形成された
ボルト孔６ｂにがたつきなく嵌合される。このような筒
状部１１ｂ−１を含む付勢部材１１の取付部１１ｂによ
って、ボルト５がデリバリバイブ６に直接接触すること
がなく。5. The mounting portion 11b of this biasing member 11 is attached to the bolt 5.
This normal part 11 has a cylindrical part 11b-1 through which it is inserted.
b-1 is fitted into the bolt hole 6b formed in the attachment portion 6a of the delivery vibe 6 without play. The attachment portion 11b of the biasing member 11 including the cylindrical portion 11b-1 prevents the bolt 5 from coming into direct contact with the delivery vibe 6.

ボルト５の締付力によるデリバリバイブ６の損傷防１Ｆ
の１−で好ましいものとなる。Prevention of damage to delivery vibe 6 due to tightening force of bolt 5 1F
1- is preferable.

付勢部材１１の本体部１１ａは、第３図に示すように、
デリバリバイブ６内のほぼ全長に渡って伸びている。ま
た、この本体部１１ａは、デリバリバイブ６の外周面に
沿うように密行され、共通燃料通路７と接続口８との合
流部分近傍までを包被している。As shown in FIG. 3, the main body portion 11a of the biasing member 11 is
It extends over almost the entire length inside the delivery vibe 6. Further, the main body portion 11a is closely arranged along the outer circumferential surface of the delivery vibe 6, and covers up to the vicinity of the confluence of the common fuel passage 7 and the connection port 8.

一ヒ述のような付勢部材ＩＮま、その弾性力、特に本体
部１１ａと取付部１１ｂとの間の弾性力によって、デリ
バリバイブ６の接続口８が燃料噴射弁１１をその軸方向
から押圧するようにされている。換言すれば、付勢部材
１１は、その自由状態においては、第１図−点鎖線で示
すような状態とされ、デリバリバイブ６と共にボルト５
によて取付部３ａに固定したときに、その弾性復元力が
作用するようになっている。Due to the elastic force of the biasing member IN as described above, especially the elastic force between the main body portion 11a and the mounting portion 11b, the connection port 8 of the delivery vibe 6 presses the fuel injector 11 from its axial direction. It is made to be. In other words, in its free state, the biasing member 11 is in a state as shown by the dotted chain line in FIG.
When it is fixed to the mounting portion 3a by the elastic restoring force, the elastic restoring force is applied.

以」一実施例について説明したが、付勢部材１１は、デ
リバリバイブ６内に埋設することもでき、この場合はデ
リバリバイブ６を射出成形するときに付勢部材１１を鋳
くるむようにすればよい。Although one embodiment has been described below, the biasing member 11 can also be embedded within the delivery vibe 6. In this case, the biasing member 11 may be wrapped in the injection molding of the delivery vibe 6. .

もっとも、実施例のようにデリバリバイブ６の上面を外
部から覆うようにすれば、エンジンの点検中に誤って落
下された工具等によってデリバリバイブ６が損傷される
ような事態を防Ｗする上で好ましいものとなる。However, if the upper surface of the delivery vibe 6 is covered from the outside as in the embodiment, it is possible to prevent the delivery vibe 6 from being damaged by a tool accidentally dropped during engine inspection. It becomes desirable.

（発明の効果） 本発明は以上述べたことから明らかなように、デリバリ
バイブを合成樹脂により形成したのでその断熱性が良好
になり、温間再始動が良好になる。(Effects of the Invention) As is clear from the above description, in the present invention, since the delivery vibe is made of synthetic resin, its heat insulation properties are improved, and warm restart is improved.

また、合成樹脂とすることにより、デリバリバイブの成
形後に特別の機楯加工をしなくても、その内部の燃料通
路内面が滑らかなものを得ることができる。このことは
、この燃料通路内で気泡が生じにくいこととなり、燃料
のパーコレーション対策上有利となる。Furthermore, by using synthetic resin, it is possible to obtain a smooth inner surface of the fuel passage inside the delivery vibrator without any special machining after molding the delivery vibrator. This makes it difficult for bubbles to form within this fuel passage, which is advantageous in terms of countermeasures against fuel percolation.

さらに、かなり長尺で大型部材であるデリバリバイブを
合成樹脂とすることにより、エンジンの経用化を図る上
でも好ましいものとなる。Furthermore, the delivery vibe, which is a fairly long and large member, is made of synthetic resin, which is preferable in terms of increasing the service life of the engine.

さらにまた、デリバリバイブを構成する合成樹脂として
一般に機械的強度に優れた汎用のものを用いても、燃料
特にガソリンによる浸食を受けることがなく、したがっ
て従来金属で形成していたものに対して燃料による浸食
というものに対して格別の配慮を行うことが不用になる
。Furthermore, even if a general-purpose synthetic resin with excellent mechanical strength is used as the synthetic resin that constitutes the delivery vibrator, it will not be eroded by fuel, especially gasoline, and therefore, it will not be eroded by fuel, especially gasoline. It becomes unnecessary to take special consideration to erosion caused by

勿論、デリバリバイブは、付勢部材によって炉材噴射弁
をしっかりと挟み込む方向に付勢されマいるので、走行
中の振動に抗して燃料噴射弁を固定状態に確実に維持す
ることができる。Of course, since the delivery vibe is biased by the biasing member in a direction to firmly sandwich the fuel injection valve, the fuel injection valve can be reliably maintained in a fixed state against vibrations during running.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例を示すもので、第３図１−１
線断面図。 第２図は付勢部材の斜視図。 第３図はデリバリバイブと付勢部材との組付体を示す平
面図。 第４図は第３図の右側面図。 第５図はデリバリバイブの平面図。 ２：吸気ボート １　　　　　　３：吸気マニホルド ３ａ：取付部 ４：分岐通路 ５：ボルト ６：デリバリバイブプ ロａ：取付部 町　　　　　　　７：共通燃料通路 ８：接続口 ９：取付孔 ｌＯ：燃料噴射弁 １０ａ：先端フランジ部 １０ｂ二基端フランジ部 １１：付勢部材 Ｉ　Ｉａ：本体部 １１ｂ：取付部Fig. 1 shows one embodiment of the present invention, and Fig. 3 1-1
Line sectional view. FIG. 2 is a perspective view of the biasing member. FIG. 3 is a plan view showing an assembly of a delivery vibe and a biasing member. Figure 4 is a right side view of Figure 3. FIG. 5 is a plan view of the delivery vibe. 2: Intake boat 1 3: Intake manifold 3a: Mounting part 4: Branch passage 5: Bolt 6: Delivery Vibe Pro a: Mounting part town 7: Common fuel passage 8: Connection port 9: Mounting hole lO: Fuel injection valve 10a: Tip flange part 10b, two base end flange parts 11: biasing member I Ia: main body part 11b: mounting part

Claims (1)

【特許請求の範囲】[Claims] （１）燃料噴射弁を、吸気通路構成部材とデリバリパイ
プとの間に挟み込んで固定するようにしたエンジンの燃
料噴射装置において、 前記デリバリパイプが合成樹脂により形成され、 前記燃料噴射弁が前記吸気通路構成部材側へ向けて押圧
されるように前記デリバリパイプを付勢する付勢部材が
設けられている、 ことを特徴とするエンジンの燃料噴射装置。(1) In a fuel injection device for an engine in which a fuel injection valve is sandwiched and fixed between an intake passage constituting member and a delivery pipe, the delivery pipe is formed of synthetic resin, and the fuel injection valve is connected to the intake passage. A fuel injection device for an engine, comprising: a biasing member that biases the delivery pipe so as to be pressed toward a passage forming member.
JP62251464A 1987-10-07 1987-10-07 Fuel injector for engine Pending JPH0196464A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62251464A JPH0196464A (en) 1987-10-07 1987-10-07 Fuel injector for engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62251464A JPH0196464A (en) 1987-10-07 1987-10-07 Fuel injector for engine

Publications (1)

Publication Number Publication Date
JPH0196464A true JPH0196464A (en) 1989-04-14

Family

ID=17223210

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62251464A Pending JPH0196464A (en) 1987-10-07 1987-10-07 Fuel injector for engine

Country Status (1)

Country Link
JP (1) JPH0196464A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2093413A1 (en) * 2008-02-19 2009-08-26 Continental Automotive GmbH Coupling device
US7934488B2 (en) 2008-02-19 2011-05-03 Continental Automotive Gmbh Coupling device
US7976073B2 (en) 2008-02-19 2011-07-12 Continental Automotive Gmbh Coupling device
US8245697B2 (en) 2009-01-19 2012-08-21 Continental Automotive Gmbh Coupling device
US8286612B2 (en) 2008-02-19 2012-10-16 Continental Automotive Gmbh Coupling device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2093413A1 (en) * 2008-02-19 2009-08-26 Continental Automotive GmbH Coupling device
US7934488B2 (en) 2008-02-19 2011-05-03 Continental Automotive Gmbh Coupling device
US7976073B2 (en) 2008-02-19 2011-07-12 Continental Automotive Gmbh Coupling device
US8286612B2 (en) 2008-02-19 2012-10-16 Continental Automotive Gmbh Coupling device
US8245697B2 (en) 2009-01-19 2012-08-21 Continental Automotive Gmbh Coupling device

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