JP2557642Y2 - Fuel distribution pipe structure for fuel injection engine - Google Patents
Fuel distribution pipe structure for fuel injection engineInfo
- Publication number
- JP2557642Y2 JP2557642Y2 JP9465891U JP9465891U JP2557642Y2 JP 2557642 Y2 JP2557642 Y2 JP 2557642Y2 JP 9465891 U JP9465891 U JP 9465891U JP 9465891 U JP9465891 U JP 9465891U JP 2557642 Y2 JP2557642 Y2 JP 2557642Y2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- distribution pipe
- fuel distribution
- leaf spring
- hill
- 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.)
- Expired - Lifetime
Links
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、複数の燃料噴射弁を取
付けるための燃料噴射式エンジンの燃料分配管構造に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel distribution pipe structure of a fuel injection engine for mounting a plurality of fuel injection valves.
【０００２】[0002]
【従来の技術】燃料噴射弁によって燃料を噴射する場合
には、１個の燃料分配管に多数の燃料噴射弁を取付け、
各燃料噴射弁から一定の燃料圧で燃料を噴射している。
この燃料分配管は一般に、両端を開口する筒状の形状に
一体に成形したもので、その一端の開口部には例えばそ
こを閉鎖する燃料ダンパが取付けられ、その他端の開口
部には例えばそこを閉鎖する燃料圧力制御弁が取付けら
れて、燃料分配管内の燃料圧力を常に一定に保ってい
る。2. Description of the Related Art When fuel is injected by a fuel injection valve, a large number of fuel injection valves are attached to one fuel distribution pipe.
Fuel is injected from each fuel injection valve at a constant fuel pressure.
Generally, the fuel distribution pipe is integrally formed into a cylindrical shape having both ends opened, and a fuel damper for closing it, for example, is attached to an opening at one end, and a fuel damper, for example, is attached to the opening at the other end. A fuel pressure control valve for closing the fuel supply is provided to keep the fuel pressure in the fuel distribution pipe constant at all times.
【０００３】[0003]
【考案が解決しようとする課題】この燃料分配管の両端
に燃料ダンパや燃料圧力制御弁を取付ける場合に、例え
ば特開昭６０−４３１６３号に示すように、燃料分配管
等にカシメやネジ加工のような二次加工が必要となり、
製造コストがかかり生産性が悪くなるという不具合があ
った。When a fuel damper and a fuel pressure control valve are mounted at both ends of the fuel distribution pipe, for example, as shown in Japanese Patent Application Laid-Open No. 60-43163, the fuel distribution pipe is caulked or threaded. Secondary processing such as
There is a problem that the production cost is increased and the productivity is deteriorated.
【０００４】［考案の目的］ 本考案は上記の点に鑑みてなされたもので、板ばね等の
止め金具を装着することによって、燃料分配管に燃料ダ
ンパや燃料圧力制御弁等を取付けるようにしたもので、
その取付けの際の二次加工を必要としないようにした燃
料噴射式エンジンの燃料分配管構造を提供するものであ
る。SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and is designed to mount a fuel damper, a fuel pressure control valve, and the like on a fuel distribution pipe by mounting a stopper such as a leaf spring. What did
It is an object of the present invention to provide a fuel distribution pipe structure of a fuel injection type engine which does not require secondary processing for mounting.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に本考案は、筒状の燃料分配管の先端開口部にそこを閉
鎖する部材を取付けると共にその燃料分配管に複数の燃
料噴射弁を取付け、その複数の燃料噴射弁から燃料を噴
射するようにした燃料噴射式エンジンにおいて、前記燃
料分配管の先端開口部の内壁にそこを閉鎖する部材のボ
ディの一部を嵌合させ、そのボディの嵌合箇所にその外
壁より半径方向外方に突出する丘部を形成し、前記筒状
の燃料分配管に開口先端から少し離れた位置の外壁に径
小の外周溝を形成し、その燃料分配管に前記丘部を挿通
させるためのものであって開口先端から外周溝に至る切
欠を形成し、この外周溝にその外壁より半径方向の外方
に突出する突出部を形成し、前記外周溝に嵌合する幅を
有するものであって切断箇所のあるリング状の板ばねを
備え、その板ばねに前記ボディの丘部を挿通させるため
の嵌合溝を形成し、その板ばねに前記外周溝の突出部を
挿通させるための穴を形成し、前記ボディの丘部を燃料
分配管の切欠に挿通させてボディを燃料分配管の奥まで
挿入した後、板ばねの穴を外周溝の突出部に嵌合させる
と共にその板ばねの嵌合溝をボディの丘部に嵌合させ、
その板ばねによってボディの丘部が切欠を通って抜ける
のを防止するようにしたものである。SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, a member for closing a cylindrical fuel distribution pipe is provided at a leading end opening thereof, and a plurality of fuel injection valves are provided in the fuel distribution pipe. In a fuel injection engine mounted and injecting fuel from a plurality of fuel injection valves, a part of a body of a member for closing the fuel distribution pipe is fitted to an inner wall of a tip opening of the fuel distribution pipe, and the body A hill projecting radially outward from the outer wall is formed at the fitting point of the fuel cell, and a small-diameter outer circumferential groove is formed on the outer wall at a position slightly away from the opening tip in the tubular fuel distribution pipe, The hill portion is inserted into the distribution pipe, a notch is formed from the tip of the opening to the outer peripheral groove, and a protrusion protruding radially outward from the outer wall is formed in the outer peripheral groove. It has a width that fits into the groove. A ring-shaped leaf spring having a cut portion is provided, a fitting groove for inserting the hill portion of the body is formed in the leaf spring, and a hole for inserting the protrusion of the outer peripheral groove into the leaf spring is provided. After the hill portion of the body is inserted into the notch of the fuel distribution pipe and the body is inserted into the fuel distribution pipe, the hole of the leaf spring is fitted into the projection of the outer peripheral groove, and the leaf spring is fitted. Fit the mating groove to the hill of the body,
The leaf spring prevents the hill of the body from passing through the notch.
【０００６】[0006]
【作用】燃料分配管に嵌合するボディに形成した丘部を
燃料分配管の切欠に挿入し、この丘部を燃料分配管の外
周溝に位置させる。この状態で、外周溝に合致する形状
のリング状の板ばねを外周溝に取付ける。その際、板ば
ねの穴を外周溝の突出部に嵌合させると共に、板ばねの
嵌合溝をボディの丘部に嵌合させる。この板ばねの穴を
外周溝の突出部に嵌合させることによって、板ばねは外
周溝の周方向に動くことはなく、しかも板ばねは外周溝
とほぼ同じ幅であるので、横方向にも動かない。この板
ばねを外周溝に取付けた際に、板ばねの嵌合溝をボディ
の丘部に嵌合させることによって、丘部が切欠に沿って
する移動ことを板ばねが妨げる。これによって、燃料分
配管の内壁に嵌合する部材のボディは、外れることなく
燃料分配管に取付けられる。The hill formed in the body that fits into the fuel distribution pipe is inserted into the cutout of the fuel distribution pipe, and this hill is positioned in the outer circumferential groove of the fuel distribution pipe. In this state, a ring-shaped leaf spring having a shape matching the outer peripheral groove is attached to the outer peripheral groove. At this time, the hole of the leaf spring is fitted to the projection of the outer peripheral groove, and the fitting groove of the leaf spring is fitted to the hill of the body. By fitting the hole of the leaf spring into the protrusion of the outer peripheral groove, the leaf spring does not move in the circumferential direction of the outer peripheral groove, and since the leaf spring has almost the same width as the outer peripheral groove, Does not move. When the leaf spring is attached to the outer peripheral groove, the leaf spring prevents the hill from moving along the notch by fitting the fitting groove of the leaf spring into the hill of the body. Thereby, the body of the member fitted to the inner wall of the fuel distribution pipe is attached to the fuel distribution pipe without being detached.
【０００７】[0007]
【実施例】次に本考案を図面に基づいて説明する。図１
は本考案に係わる燃料噴射式エンジンの燃料分配管構造
の一実施例正面図である。燃料分配管１０は両端が開口
した筒状の形状をしており、その筒部に複数の燃料噴射
弁１２が取付けられる。この燃料分配管１０において
は、その先端開口部を閉鎖する部材として、一端の開口
部に燃料圧力制御弁１４が取付けられ、他端の開口部に
例えば燃料ダンパ１６が取付けられる。これら燃料圧力
制御弁１４や燃料ダンパ１６は既知のものなので、その
構成や機能の説明は省略する。なお、燃料分配管１０は
一端のみが開口し他端は冷え差したものであってもよ
い。BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG.
FIG. 2 is a front view of an embodiment of a fuel distribution pipe structure of the fuel injection type engine according to the present invention. The fuel distribution pipe 10 has a cylindrical shape with both ends opened, and a plurality of fuel injection valves 12 are attached to the cylindrical portion. In the fuel distribution pipe 10, a fuel pressure control valve 14 is attached to an opening at one end and a fuel damper 16, for example, is attached to an opening at the other end, as a member for closing the opening at the tip. Since the fuel pressure control valve 14 and the fuel damper 16 are known, descriptions of their configurations and functions will be omitted. The fuel distribution pipe 10 may have only one end opened and the other end cooled.
【０００８】図２は燃料分配管１０の一端開口部に燃料
圧力制御弁１４を取付けた状態の断面図、図３は図２の
Ａ矢視方向平面図である。筒状の燃料分配管１０の先端
開口の内壁に、燃料圧力制御弁１４のボディ１８の一部
の外壁が嵌合するように、ボディ１８の形状が設定され
ている。そのボディ１８の嵌合箇所には、外壁より半径
方向の外方に突出する丘部２０が一体に形成されてお
り、この丘部２０に戻し管２２が取付けられ、燃料分配
管１０の燃料がこの戻し管２２から図示しないポンプに
戻すように設定されている。FIG. 2 is a sectional view showing a state in which a fuel pressure control valve 14 is attached to one end opening of the fuel distribution pipe 10, and FIG. 3 is a plan view in the direction of arrow A in FIG. The shape of the body 18 is set such that the outer wall of a part of the body 18 of the fuel pressure control valve 14 fits into the inner wall of the distal end opening of the cylindrical fuel distribution pipe 10. A hill 20 protruding outward in the radial direction from the outer wall is integrally formed at the fitting portion of the body 18, and a return pipe 22 is attached to the hill 20, and the fuel in the fuel distribution pipe 10 flows through the hill 20. The return pipe 22 is set to return to a pump (not shown).
【０００９】燃料分配管１０の外壁には、開口先端部よ
り少し奥まった位置に径小で幅広の外周溝２４が形成さ
れている。また、その燃料分配管１０には、一端から外
周溝２４に至る幅広の切欠２６が形成されている。この
切欠２６は開口先端から軸方向に沿って外周溝２４の幅
の中央に至り、その外周溝２４の幅の中央に至ってから
直角方向に進んだＬ字形状とされている。この切欠２６
の幅は前記ボディ１８の丘部２０の幅よりも広く設定さ
れ、その丘部２０の高さは、外周溝２４の表面より外側
に突出する高さとされている。この外周溝２４には、切
欠２６位置とは異なる位置でしかも幅の中央位置に、外
壁より半径方向の外方に突出する突出部２８が一体に形
成されている。前記ボディ１８において、丘部２０位置
よりやや挿入先端側の外壁に、Ｏリング３０が取付けら
れる。On the outer wall of the fuel distribution pipe 10, a small-diameter and wide outer peripheral groove 24 is formed at a position slightly deeper than the front end of the opening. The fuel distribution pipe 10 is formed with a wide notch 26 extending from one end to the outer peripheral groove 24. The notch 26 has an L-shape that extends from the leading end of the opening along the axial direction to the center of the width of the outer peripheral groove 24, and reaches the center of the width of the outer peripheral groove 24, and then advances in a right angle direction. This notch 26
Is set wider than the width of the hill portion 20 of the body 18, and the height of the hill portion 20 is set to a height protruding outside the surface of the outer peripheral groove 24. The outer peripheral groove 24 is integrally formed with a projecting portion 28 projecting radially outward from the outer wall at a position different from the position of the notch 26 and at the center of the width. In the body 18, an O-ring 30 is attached to the outer wall slightly closer to the insertion distal end than the position of the hill portion 20.
【００１０】燃料分配管１０の外周溝２４に、図４に示
す板ばね３２が取付けられる。この板ばね３２は一端を
切断したリング状の形状としたもので、そのリング状の
形状は、前記外周溝２４の外面にほぼ合致する形状を常
に保つ様に設定されている。この板ばね３２の幅は外周
溝２４に嵌合する幅に設定されている。即ち、この板ば
ね３２の幅は、外周溝２４の幅よりほんの僅かだけ狭く
なるように設定されている。この板ばね３２には、一方
の切断先端において、その幅の中央部からリングに沿っ
て、ある程度の長さの嵌合溝３４が形成され、この嵌合
溝３４の両側は一対の腕部３６となっている。この嵌合
溝３４の幅は、前記ボディ１８の丘部２０の幅よりも広
く設定される。この板ばね３２にはまた、前記外周溝２
４に形成された突出部２８と嵌合するための穴３８が形
成される。この板ばね３２には更に、ばねの変形を大き
くするための溝３９がその幅の中央において周方向にあ
る程度の長さに渡って形成されている。A leaf spring 32 shown in FIG. 4 is attached to the outer peripheral groove 24 of the fuel distribution pipe 10. The leaf spring 32 has a ring shape with one end cut, and the ring shape is set so as to always maintain a shape substantially matching the outer surface of the outer peripheral groove 24. The width of the leaf spring 32 is set to a width that fits into the outer peripheral groove 24. That is, the width of the leaf spring 32 is set to be slightly smaller than the width of the outer peripheral groove 24. In this leaf spring 32, a fitting groove 34 having a certain length is formed along the ring from the center of the width at one of the cutting ends, and both sides of the fitting groove 34 are a pair of arm portions 36. It has become. The width of the fitting groove 34 is set wider than the width of the hill portion 20 of the body 18. The leaf spring 32 also includes the outer peripheral groove 2.
A hole 38 is formed for fitting with the protruding portion 28 formed in FIG. The leaf spring 32 is further formed with a groove 39 for increasing the deformation of the spring at a center of its width over a certain length in the circumferential direction.
【００１１】次に、燃料圧力制御弁１４の燃料分配管１
０への取付け方法について説明する。先ず、燃料分配管
１０の開口部から燃料圧力制御弁１４のボディ１８の先
端を挿入するが、その際に、ボディ１８の丘部２０を燃
料分配管１０の切欠２６を通すようにして、燃料圧力制
御弁１４を燃料分配管１０に嵌合させる。燃料圧力制御
弁１４を燃料分配管１０に対して最も奥に挿入した後、
燃料圧力制御弁１４を燃料分配管１０に対して回転させ
る。即ち、図３において、燃料分配管１０を固定した状
態で、点線位置にある丘部２０を実線位置に移動させ
る。Next, the fuel distribution pipe 1 of the fuel pressure control valve 14
The method of attaching the hologram to the “0” will be described. First, the tip of the body 18 of the fuel pressure control valve 14 is inserted from the opening of the fuel distribution pipe 10. At this time, the hill 20 of the body 18 is passed through the cutout 26 of the fuel distribution pipe 10, The pressure control valve 14 is fitted to the fuel distribution pipe 10. After inserting the fuel pressure control valve 14 farthest into the fuel distribution pipe 10,
The fuel pressure control valve 14 is rotated with respect to the fuel distribution pipe 10. That is, in FIG. 3, with the fuel distribution pipe 10 fixed, the hill portion 20 located at the dotted line position is moved to the solid line position.
【００１２】その後、図４に示す板ばね３２を燃料分配
管１０の外周溝２４に取付ける。この際、板ばね３２の
穴３８を外周溝２４に一体に形成した突出部２８に嵌合
させる。更に、ボディ１８の丘部２０に板ばね３２の嵌
合溝３４を嵌合させる。板ばね３２の形状が外周溝２４
の外面にほぼ合致するリング形状であり、しかも板ばね
３２の幅が外周溝２４の幅に嵌合できるものであり、板
ばね３２の穴３８が外周溝２４の突出部２８に嵌合して
いることから、板ばね３２を外周溝２４に取付けた状態
では、板ばね３２は動くことはない。そして、図３に示
すように、板ばね３２（一点鎖線）の腕部３６が切欠２
６を横断しているので、丘部２０が切欠２６を通って外
れることがない。従って、板ばね３２を外周溝２４に取
付けることによって、燃料圧力制御弁１４が燃料分配管
１０に外れることなく取付けられることになる。Thereafter, a leaf spring 32 shown in FIG. 4 is attached to the outer peripheral groove 24 of the fuel distribution pipe 10. At this time, the hole 38 of the leaf spring 32 is fitted into the protrusion 28 formed integrally with the outer peripheral groove 24. Further, the fitting groove 34 of the leaf spring 32 is fitted into the hill 20 of the body 18. The shape of the leaf spring 32 is the outer circumferential groove 24.
And the width of the leaf spring 32 can be fitted to the width of the outer peripheral groove 24, and the hole 38 of the leaf spring 32 fits into the protrusion 28 of the outer peripheral groove 24. Therefore, when the leaf spring 32 is attached to the outer peripheral groove 24, the leaf spring 32 does not move. Then, as shown in FIG. 3, the arm 36 of the leaf spring 32 (the
6, the hill 20 does not come off through the notch 26. Therefore, by attaching the leaf spring 32 to the outer peripheral groove 24, the fuel pressure control valve 14 can be attached to the fuel distribution pipe 10 without coming off.
【００１３】次に、燃料分配管１０の他端開口部への燃
料ダンパ１６の取付けについて、図３及び図５に基づい
て説明する。燃料分配管１０においては燃料ダンパ１６
の取付け側にも、図３に示す径小の外周溝２４と切欠２
６とが形成され、その外周溝２４には図５に示す突出部
２８が形成される。燃料ダンパ１６のボディ４０は、そ
の外壁の一端が燃料分配管１０の内壁に嵌合する形状と
なっており、そのボディ４０に前記外周溝２４の外面よ
り外方に突出しかつ、前記切欠２６よりも幅の狭い丘部
４２を形成する。このボディ４０において丘部４２の位
置よりも挿入先端側の外面にＯリング４４が取付けられ
る。また、この丘部４２には、燃料分配管１０の管内と
通じる燃料供給管４６が取付けられる。Next, the attachment of the fuel damper 16 to the other end of the fuel distribution pipe 10 will be described with reference to FIGS. In the fuel distribution pipe 10, the fuel damper 16
The outer peripheral groove 24 having a small diameter and the notch 2 shown in FIG.
6 is formed, and a protrusion 28 shown in FIG. The body 40 of the fuel damper 16 has a shape in which one end of the outer wall is fitted to the inner wall of the fuel distribution pipe 10, protrudes outward from the outer surface of the outer peripheral groove 24 in the body 40, and Also forms a narrow hill portion 42. An O-ring 44 is attached to the outer surface of the body 40 closer to the insertion distal end than the position of the hill portion 42. A fuel supply pipe 46 communicating with the inside of the fuel distribution pipe 10 is attached to the hill 42.
【００１４】次に、燃料ダンパ１６を燃料分配管１０へ
取付ける場合には、ボディ４０の丘部４２を燃料分配管
１０の切欠２６を通すようにして、燃料ダンパ１６のボ
ディ１８を燃料分配管１０の奥に挿入する。そして、燃
料ダンパ１６を最も奥に挿入した状態で、図４に示す板
ばね３２を燃料分配管１０の外周溝２４に取付ける。こ
の際、ボディ４０の丘部４２に板ばね３２の嵌合溝３４
を嵌合させる。更に、板ばね３２の穴３８を外周溝２４
に一体に形成した突出部２８に嵌合させる。この板ばね
３２の突出部２８への嵌合によって板ばね３２は動くこ
とはない。そして図３に示すように、板ばね３２（一点
鎖線）の腕部３６が切欠２６を横断しているので、丘部
４２が切欠２６を通って外れることがなく、従って燃料
ダンパ１６が燃料分配管１０に外れることなく取付けら
れる。なお、図５においては燃料ダンパ１６と燃料供給
管４６との固定物を燃料分配管１０に取付ける例を示し
たが、これに代えて燃料供給管４６のみを燃料分配管１
０に取付けるようにしても良い。Next, when the fuel damper 16 is attached to the fuel distribution pipe 10, the hill 42 of the body 40 is passed through the cutout 26 of the fuel distribution pipe 10, and the body 18 of the fuel damper 16 is connected to the fuel distribution pipe. Insert into the back of 10. Then, with the fuel damper 16 inserted at the innermost position, the leaf spring 32 shown in FIG. At this time, the fitting groove 34 of the leaf spring 32 is
Is fitted. Further, the hole 38 of the leaf spring 32 is
Is fitted to the protruding part 28 formed integrally with the protruding part. The leaf spring 32 does not move due to the fitting of the leaf spring 32 to the protrusion 28. As shown in FIG. 3, since the arm portion 36 of the leaf spring 32 (dashed line) crosses the notch 26, the hill portion 42 does not come off through the notch 26, and therefore, the fuel damper 16 disperses the fuel. It can be attached to the pipe 10 without coming off. Although FIG. 5 shows an example in which the fixed body of the fuel damper 16 and the fuel supply pipe 46 is attached to the fuel distribution pipe 10, only the fuel supply pipe 46 is replaced with the fuel distribution pipe 1.
0 may be attached.
【００１５】[0015]
【考案の効果】以上のように、本考案に係わる燃料噴射
式エンジンの燃料分配管構造によれば、燃料分配管の開
口部に燃料圧力制御弁や燃料ダンパ等を取付ける場合
に、燃料圧力制御弁等のボディを燃料分配管の開口部に
挿入して板ばねを取付けるだけで、燃料圧力制御弁等を
燃料分配管に外れることなく固定することができる。従
って、燃料分配管等に二次加工を行なう必要が無くな
り、コストダウンを図ることができる。また、燃料圧力
制御弁等を燃料分配管に挿入し、その後、板ばねを取付
けるだけであるので、組付作業が容易となる。As described above, according to the fuel distribution pipe structure of the fuel injection type engine according to the present invention, when the fuel pressure control valve or the fuel damper is installed at the opening of the fuel distribution pipe, the fuel pressure control is performed. By simply inserting a body such as a valve into the opening of the fuel distribution pipe and attaching a leaf spring, the fuel pressure control valve and the like can be fixed to the fuel distribution pipe without coming off. Therefore, it is not necessary to perform secondary processing on the fuel distribution pipe and the like, and cost can be reduced. In addition, since the fuel pressure control valve and the like are simply inserted into the fuel distribution pipe and then the leaf spring is attached, the assembling work becomes easy.
【図１】本考案に係わる燃料噴射式エンジンの燃料分配
管構造の一実施例正面図である。FIG. 1 is a front view of an embodiment of a fuel distribution pipe structure of a fuel injection type engine according to the present invention.
【図２】燃料分配管の一端開口部に燃料圧力制御弁を取
付けた状態の断面図である。FIG. 2 is a sectional view showing a state in which a fuel pressure control valve is attached to one end opening of a fuel distribution pipe.
【図３】図２のＡ矢視方向平面図である。FIG. 3 is a plan view in the direction of arrow A in FIG. 2;
【図４】本考案に用いる板ばねの斜視図である。FIG. 4 is a perspective view of a leaf spring used in the present invention.
【図５】燃料分配管の一端開口部に燃料ダンパを取付け
た状態の断面図である。FIG. 5 is a sectional view showing a state in which a fuel damper is attached to one end opening of a fuel distribution pipe.
１０ 燃料分配管 １２ 燃料噴射弁 １４ 燃料圧力制御弁 １６ 燃料ダンパ １８ ボディ ２０ 丘部 ２４ 外周溝 ２６ 切欠 ２８ 突出部 ３２ 板ばね ３４ 嵌合溝 ３８ 穴 Reference Signs List 10 fuel distribution pipe 12 fuel injection valve 14 fuel pressure control valve 16 fuel damper 18 body 20 hill part 24 outer peripheral groove 26 notch 28 projecting part 32 leaf spring 34 fitting groove 38 hole
Claims (1)
閉鎖する部材を取付けると共にその燃料分配管に複数の
燃料噴射弁を取付け、その複数の燃料噴射弁から燃料を
噴射するようにした燃料噴射式エンジンにおいて、 前記燃料分配管の先端開口部の内壁にそこを閉鎖する部
材のボディの一部を嵌合させ、そのボディの嵌合箇所に
その外壁より半径方向外方に突出する丘部を形成し、前
記筒状の燃料分配管に開口先端から少し離れた位置の外
壁に径小の外周溝を形成し、その燃料分配管に前記丘部
を挿通させるためのものであって開口先端から外周溝に
至る切欠を形成し、この外周溝にその外壁より半径方向
の外方に突出する突出部を形成し、前記外周溝に嵌合す
る幅を有するものであって切断箇所のあるリング状の板
ばねを備え、その板ばねに前記ボディの丘部を挿通させ
るための嵌合溝を形成し、その板ばねに前記外周溝の突
出部を挿通させるための穴を形成し、 前記ボディの丘部を燃料分配管の切欠に挿通させてボデ
ィを燃料分配管の奥まで挿入した後、板ばねの穴を外周
溝の突出部に嵌合させると共にその板ばねの嵌合溝をボ
ディの丘部に嵌合させ、その板ばねによってボディの丘
部が切欠を通って抜けるのを防止することを特徴とする
燃料噴射式エンジンの燃料分配管構造。A member for closing the cylindrical fuel distribution pipe is provided at a tip end opening thereof, and a plurality of fuel injection valves are mounted on the fuel distribution pipe so that fuel is injected from the plurality of fuel injection valves. In the fuel injection type engine, a part of a body of a member for closing the tip opening of the fuel distribution pipe is fitted to an inner wall of the fuel distribution pipe, and the fitting portion of the body projects radially outward from the outer wall at the fitting portion of the body. Forming a hill portion, forming a small-diameter outer circumferential groove in an outer wall of the tubular fuel distribution pipe at a position slightly away from the opening tip, and allowing the hill section to pass through the fuel distribution pipe. A notch extending from the opening front end to the outer peripheral groove is formed, and a protrusion protruding radially outward from the outer wall of the outer peripheral groove is formed in the outer peripheral groove. A ring-shaped leaf spring is provided. Forming a fitting groove for allowing the hill of the body to pass therethrough, forming a hole for allowing the protrusion of the outer peripheral groove to pass through the leaf spring, and inserting the hill of the body into a notch of a fuel distribution pipe. After inserting the body to the end of the fuel distribution pipe, the hole of the leaf spring is fitted into the protrusion of the outer peripheral groove, and the fitting groove of the leaf spring is fitted into the hill of the body, and the leaf spring is A fuel distribution pipe structure for a fuel-injection engine, wherein a hill of the body is prevented from slipping through the notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9465891U JP2557642Y2 (en) | 1991-10-23 | 1991-10-23 | Fuel distribution pipe structure for fuel injection engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9465891U JP2557642Y2 (en) | 1991-10-23 | 1991-10-23 | Fuel distribution pipe structure for fuel injection engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0653762U JPH0653762U (en) | 1994-07-22 |
| JP2557642Y2 true JP2557642Y2 (en) | 1997-12-10 |
Family
ID=14116360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9465891U Expired - Lifetime JP2557642Y2 (en) | 1991-10-23 | 1991-10-23 | Fuel distribution pipe structure for fuel injection engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2557642Y2 (en) |
-
1991
- 1991-10-23 JP JP9465891U patent/JP2557642Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0653762U (en) | 1994-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4915350A (en) | Electromagnetically actuatable valve | |
| JP2986542B2 (en) | Solenoid operated valve | |
| US4984744A (en) | Electromagnetically actuatable valve | |
| KR100482905B1 (en) | Fuel injection valve and method of prducing the same | |
| EP0776422B1 (en) | Fuel injector having improved parallelism of impacting armature surface to impacted stop surface | |
| US6325049B1 (en) | Fuel injector with orientation feature for orienting injector with respect to the manifold or head | |
| US20090184184A1 (en) | Fuel Injector and Method for Its Mounting | |
| ITRM980145A1 (en) | IMPROVEMENT IN CARBURETORS FOR INTERNAL COMBUSTION ENGINES | |
| JPH0152587B2 (en) | ||
| JPH0370862A (en) | Electromagnetically operating valve | |
| JPS6367479A (en) | Electromagnetically operable valve | |
| GB2187332A (en) | Electromagnetic fuel metering and atomizing valve | |
| US6764032B2 (en) | Self-locking spring stop for fuel injector calibration | |
| JP2557642Y2 (en) | Fuel distribution pipe structure for fuel injection engine | |
| JP2003343785A (en) | Joint structure for connecting fuel pipe part with fuel injection device | |
| JP2811062B2 (en) | Side feed type fuel injection valve | |
| JPH11132061A (en) | Throttle valve device for internal conmustion engine | |
| JPH0429079Y2 (en) | ||
| JP2000104847A (en) | Closing structure of end part of cylindrical member and solenoid valve having the same structure | |
| JPH0442527Y2 (en) | ||
| JP3046480B2 (en) | Fuel injection valve | |
| JP2660377B2 (en) | Fuel injection valve | |
| JPH07111165B2 (en) | Fuel injection valve | |
| US7118092B2 (en) | Method and apparatus for assembling a vane-type valve | |
| JP2001295721A (en) | Solenoid fuel injection valve |