JPH0121178Y2 - - Google Patents
Info
- Publication number
- JPH0121178Y2 JPH0121178Y2 JP1983199525U JP19952583U JPH0121178Y2 JP H0121178 Y2 JPH0121178 Y2 JP H0121178Y2 JP 1983199525 U JP1983199525 U JP 1983199525U JP 19952583 U JP19952583 U JP 19952583U JP H0121178 Y2 JPH0121178 Y2 JP H0121178Y2
- Authority
- JP
- Japan
- Prior art keywords
- injection valve
- fuel injection
- filter
- fuel
- flange
- 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
Links
- 239000000446 fuel Substances 0.000 claims description 71
- 238000002347 injection Methods 0.000 claims description 58
- 239000007924 injection Substances 0.000 claims description 58
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
- Vibration Prevention Devices (AREA)
Description
【考案の詳細な説明】
本考案は燃料噴射弁のボデーへの取付け構造に
関する。[Detailed Description of the Invention] The present invention relates to a structure for attaching a fuel injection valve to a body.
従来、燃料噴射弁をボデーに取付ける方法は、
ボデーに燃料噴射弁のストツパ座としての段部を
形成すると共に、燃料噴射弁の外面にも段部を形
成し、燃料噴射弁をボデーに装着してそれらの段
部同士を係合させ、燃料噴射弁の後端をボデーに
取付けた固定手段で押えて、燃料噴射弁をボデー
に固定していた。この従来の燃料噴射弁取付け方
法では、ボデーと燃料噴射弁とは固く固定されて
いるので、ボデーの振動が燃料噴射弁に直接伝わ
り、燃料噴射弁の機能を損ねるおそれがあつた。
また、燃料噴射弁とボデーとの係合部は金属同士
の接触となつているので、ボデーの振動等によつ
てそれらの間に少しでも緩みが生じた場合には、
ボデーの振動時にその接触部分に振動音が発生し
たり、その接触面に損傷が発生したりするおそれ
があつた。 Conventionally, the method of attaching a fuel injection valve to the body is
A stepped portion is formed on the body as a stopper seat for the fuel injector, and a stepped portion is also formed on the outer surface of the fuel injector, and the fuel injector is attached to the body so that the stepped portions are engaged with each other, and the fuel injection valve is The fuel injection valve was fixed to the body by holding the rear end of the injection valve with a fixing means attached to the body. In this conventional fuel injection valve mounting method, since the body and the fuel injection valve are firmly fixed, vibrations of the body are directly transmitted to the fuel injection valve, which may impair the function of the fuel injection valve.
In addition, since the engagement portion between the fuel injector and the body is in metal-to-metal contact, if there is any loosening between them due to body vibration, etc.,
When the body vibrates, there is a risk that vibration noise may be generated at the contact portion or damage may occur to the contact surface.
本考案は、燃料噴射弁に形成される燃料取入口
やベーパー排出口の外側にフイルタを取付けるこ
とに着目し、そのフイルタを延長してボデーと燃
料噴射弁との係合部にフイルタの延長部を介在さ
せるようにしたもので、燃料噴射弁への振動の伝
搬を少くすると共に、ボデーと燃料噴射弁との間
の振動音の発生やそれらの接触部での損傷の発生
を防止できるようにし、しかも経済性を高めるよ
うにしたものである。 The present invention focuses on attaching a filter to the outside of the fuel inlet and vapor outlet formed in the fuel injection valve, and extends the filter to the area where the body and the fuel injection valve engage. This is designed to reduce the propagation of vibrations to the fuel injection valve, and also prevent the generation of vibration noise between the body and fuel injection valve and damage at the contact area between them. Moreover, it is designed to improve economic efficiency.
次に本考案を図面に基づいて説明する。 Next, the present invention will be explained based on the drawings.
第１図は本考案に係わる燃料噴射弁の取付け構
造の一実施例を示す断面図である。燃料噴射弁１
０を保持するボデー１２には燃料噴射弁１０を装
着するための穴１４が形成され、その穴１４に燃
料噴射弁１０のストツパ座としての段部１６が形
成されている。燃料噴射弁１０をボトムフイード
タイプのものとすれば、その下端部付近に燃料取
入口１８が形成され、その他にそれより上部にベ
ーパー排出口２０が形成される。それら燃料取入
口１８及びベーパー排出口２０の外周にはそれぞ
れ略筒状の樹脂等の可撓性材料から成るフイルタ
２２，２４が取付けられる。ベーパー排出口２０
の外周に取付けられるフイルタ２４の上端部には
外側に張り出した鍔部２６が形成されている。燃
料噴射弁１０のベーパー排出口２０より上部には
Ｏリング２８を保持するためのフランジ３０が形
成され、そのフランジ３０の下面が前記ボデー１
２の段部１６との係合部となつている。前記フイ
ルタ２４の鍔部２６の外径はフランジ３０の外径
とほぼ同一とされており、その鍔部２６はフラン
ジ３０の下面に接触するように燃料噴射弁１０に
取付けられている。 FIG. 1 is a sectional view showing an embodiment of a fuel injection valve mounting structure according to the present invention. fuel injection valve 1
A hole 14 for mounting the fuel injection valve 10 is formed in the body 12 holding the fuel injection valve 0, and a stepped portion 16 as a stopper seat for the fuel injection valve 10 is formed in the hole 14. If the fuel injection valve 10 is of a bottom feed type, a fuel intake port 18 is formed near its lower end, and a vapor discharge port 20 is formed above it. Approximately cylindrical filters 22 and 24 made of a flexible material such as resin are attached to the outer peripheries of the fuel intake port 18 and vapor discharge port 20, respectively. Vapor outlet 20
A flange 26 projecting outward is formed at the upper end of the filter 24 attached to the outer periphery of the filter 24 . A flange 30 for holding an O-ring 28 is formed above the vapor discharge port 20 of the fuel injection valve 10, and the lower surface of the flange 30 is connected to the body 1.
This serves as an engaging portion with the step portion 16 of No. 2. The outer diameter of the flange 26 of the filter 24 is approximately the same as the outer diameter of the flange 30, and the flange 26 is attached to the fuel injection valve 10 so as to be in contact with the lower surface of the flange 30.
以上のように構成された本考案においては、燃
料噴射弁１０をボデー１２の穴１４に装着して、
燃料噴射弁１０のフランジ３０とボデー１２の段
部１６とを係合させると、燃料噴射弁１０のフラ
ンジ３０とボデー１２の段部１６との間には樹脂
等の可撓性の材料から成るフイルタ２４が介在す
る。このフイルタ２４は可撓性材料から成つてい
るので、ボデー１２に振動が生じてもその振動は
フイルタ２４によつて吸収され、燃料噴射弁１０
にはほとんど及ぶことはない。 In the present invention configured as described above, the fuel injection valve 10 is installed in the hole 14 of the body 12,
When the flange 30 of the fuel injection valve 10 and the stepped portion 16 of the body 12 are engaged, a flexible material such as resin is formed between the flange 30 of the fuel injection valve 10 and the stepped portion 16 of the body 12. A filter 24 is interposed. Since this filter 24 is made of a flexible material, even if vibration occurs in the body 12, the vibration is absorbed by the filter 24, and the fuel injection valve 10
It almost never reaches.
また、燃料噴射弁１０とボデー１２との係合部
では、フイルタ２４によつて金属同士の直接接触
を避けることが出来るので、燃料噴射弁１０とボ
デー１２との間での振動音の発生や衝突による損
傷の発生を防ぐことが出来る。 Furthermore, since the filter 24 can prevent direct contact between metals at the engagement portion between the fuel injection valve 10 and the body 12, vibration noise between the fuel injection valve 10 and the body 12 can be avoided. Damage caused by collision can be prevented.
更に、燃料噴射弁１０の上端を、ゴム等の弾性
材３２を介して、押圧腕３４によつてボデー１２
に固定すると、燃料噴射弁１０の両端は弾性的に
ボデー１２に保持されるので、燃料噴射弁１０へ
の振動の伝搬防止や燃料噴射弁１０とボデー１２
との間の衝突音の防止により効果的である。 Furthermore, the upper end of the fuel injection valve 10 is pressed against the body 12 by a pressing arm 34 via an elastic material 32 such as rubber.
When the fuel injection valve 10 is fixed to the body 12, both ends of the fuel injection valve 10 are elastically held by the body 12, which prevents vibration from propagating to the fuel injection valve 10 and prevents the fuel injection valve 10 and the body 12 from being propagated.
This is more effective in preventing collision noise between the
その上、フイルタ２４を延長部した鍔部２６を
燃料噴射弁１０とボデー１２との間に介在させる
ので、別に緩衝材を用意しなくてもよくなり、経
済的である。また、フイルタ２４の鍔部２６が燃
料噴射弁１０とボデー１２とによつて挟持されて
いるので、その箇所にフイルタ２４を燃料噴射弁
１０に取付けるためのバンドや保持体等も不要に
なり、しかもその箇所でのフイルタ２４の燃料噴
射弁１０への取付けが強固になる。 Furthermore, since the flange portion 26, which is an extension of the filter 24, is interposed between the fuel injection valve 10 and the body 12, there is no need to prepare a separate cushioning material, which is economical. Furthermore, since the flange portion 26 of the filter 24 is held between the fuel injection valve 10 and the body 12, there is no need for a band or a holder to attach the filter 24 to the fuel injection valve 10 at that location. Moreover, the attachment of the filter 24 to the fuel injection valve 10 at that location becomes more secure.
次に本考案の他の実施例を第２図に部分断面図
で示す。前記実施例と同一符合は同一部分を示
す。前記実施例においては、ベーパー排出口２０
用のフイルタ２４を燃料噴射弁１０とボデー１２
の係合部に介在させたが、当実施例においては、
燃料取入口１８用のフイルタを係合部に介在させ
るものである。燃料噴射弁１０の燃料取入口１８
の位置よりやや上方には段部４０が形成され、ボ
デー１２にも前記段部４０に相対応する位置に、
燃料噴射弁１０のストツパ座としての段部４２が
形成される。燃料取入口１８の外周に取付けられ
る筒状のフイルタ４４の上端部には外側に張り出
した鍔部４６が形成され、その鍔部４６は燃料噴
射弁１０の段部４０の下面に接触している。燃料
噴射弁１０の段部４０をボデー１２の段部４２に
係合させると、それらの係合部には非金属の可撓
性材料から成るフイルタ４４の鍔部４６が介在す
る。従つて、燃料噴射弁１０とボデー１２とは弾
性的に係合し、当実施例においても前記実施例と
同様の効果を得ることが出来る。 Next, another embodiment of the present invention is shown in a partial sectional view in FIG. The same reference numerals as in the previous embodiment indicate the same parts. In the embodiment, the vapor outlet 20
The filter 24 for the fuel injection valve 10 and the body 12
However, in this embodiment,
A filter for the fuel intake port 18 is interposed in the engaging portion. Fuel intake port 18 of fuel injection valve 10
A step portion 40 is formed slightly above the position of , and a step portion 40 is formed on the body 12 at a position corresponding to the step portion 40 .
A stepped portion 42 is formed as a stopper seat for the fuel injection valve 10. A flange portion 46 projecting outward is formed at the upper end of a cylindrical filter 44 attached to the outer periphery of the fuel intake port 18, and the flange portion 46 is in contact with the lower surface of the stepped portion 40 of the fuel injection valve 10. . When the stepped portion 40 of the fuel injection valve 10 is engaged with the stepped portion 42 of the body 12, the flange portion 46 of the filter 44 made of a non-metallic flexible material is interposed between the engaged portions. Therefore, the fuel injection valve 10 and the body 12 are elastically engaged, and the same effects as in the previous embodiment can be obtained in this embodiment as well.
なお、燃料噴射弁がトツプフイードタイプのも
のであつても、その燃料噴射弁に取付けられるフ
イルタを燃料噴射弁とボデーとの係合部に介在さ
せることによつて、前述の実施例と同様の効果を
得ることが出来る。 Note that even if the fuel injection valve is a top-feed type, by interposing a filter attached to the fuel injection valve at the engagement portion between the fuel injection valve and the body, the same effect as in the above embodiment can be achieved. You can get the effect of
以上のように本考案に係わる燃料噴射弁の取付
け構造によれば、従来から燃料噴射弁に取付けら
れていたフイルタを外側に伸張させ、燃料噴射弁
とボデーとの係合面に介在させたもので、燃料噴
射弁への振動の影響を和らげると共に、ボデーの
振動時に燃料噴射弁とボデーとの係合部に生じる
音や損傷を防止し、しかも経済性を高めるように
したものである。 As described above, according to the fuel injection valve mounting structure according to the present invention, the filter that has been conventionally attached to the fuel injection valve is extended outward and interposed on the engagement surface between the fuel injection valve and the body. This reduces the influence of vibration on the fuel injection valve, prevents noise and damage caused to the engagement portion between the fuel injection valve and the body when the body vibrates, and improves economic efficiency.
第１図は本考案に係わる燃料噴射弁の固定構造
の一実施例を示す断面図、第２図は本考案の他の
実施例を示す部分断面図である。
１０……燃料噴射弁、１２……ボデー、１６…
…段部、２４……フイルタ、２６……鍔部、３０
……フランジ、４０……段部、４２……段部、４
４……フイルタ、４６……鍔部。
FIG. 1 is a sectional view showing one embodiment of a fixing structure for a fuel injection valve according to the present invention, and FIG. 2 is a partial sectional view showing another embodiment of the present invention. 10...Fuel injection valve, 12...Body, 16...
...Step part, 24...Filter, 26...Brim part, 30
...Flange, 40...Step part, 42...Step part, 4
4... Filter, 46... Tsuba.
Claims (1)
ストツパ座に燃料噴射弁を係合させ、前記燃料噴
射弁に形成された燃料出入口の外側に燃料出入口
用フイルタを設けた燃料噴射弁において、前記燃
料噴射弁と前記ボデーとの係合面に前記燃料出入
口用フイルタを延長して介在させ、その燃料出入
口用フイルタによつて燃料噴射弁とボデーとの係
合面を接触させないようにしたことを特徴とする
燃料噴射弁の取付け構造。 In the fuel injection valve, a stopper seat for the fuel injection valve is provided in the body, the fuel injection valve is engaged with the stopper seat, and a filter for the fuel inlet/outlet is provided on the outside of the fuel inlet/outlet formed in the fuel injector. The fuel inlet/outlet filter is extended and interposed on the engagement surface between the injection valve and the body, and the fuel inlet/outlet filter prevents the engagement surface between the fuel injection valve and the body from coming into contact with each other. Mounting structure of fuel injection valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19952583U JPS60110678U (en) | 1983-12-28 | 1983-12-28 | Fuel injection valve installation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19952583U JPS60110678U (en) | 1983-12-28 | 1983-12-28 | Fuel injection valve installation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60110678U JPS60110678U (en) | 1985-07-26 |
| JPH0121178Y2 true JPH0121178Y2 (en) | 1989-06-23 |
Family
ID=30759528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19952583U Granted JPS60110678U (en) | 1983-12-28 | 1983-12-28 | Fuel injection valve installation structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60110678U (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040025213A (en) * | 2002-09-18 | 2004-03-24 | 대우종합기계 주식회사 | Injector fixing device for z engine |
| JP4546404B2 (en) * | 2006-01-25 | 2010-09-15 | 本田技研工業株式会社 | Engine fuel injection valve mounting structure |
| JP6755228B2 (en) * | 2017-10-26 | 2020-09-16 | ヤンマーパワーテクノロジー株式会社 | engine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58110857A (en) * | 1981-12-23 | 1983-07-01 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Injection valve |
-
1983
- 1983-12-28 JP JP19952583U patent/JPS60110678U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58110857A (en) * | 1981-12-23 | 1983-07-01 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Injection valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60110678U (en) | 1985-07-26 |
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