JPH0413416Y2 - - Google Patents
Info
- Publication number
- JPH0413416Y2 JPH0413416Y2 JP1984121704U JP12170484U JPH0413416Y2 JP H0413416 Y2 JPH0413416 Y2 JP H0413416Y2 JP 1984121704 U JP1984121704 U JP 1984121704U JP 12170484 U JP12170484 U JP 12170484U JP H0413416 Y2 JPH0413416 Y2 JP H0413416Y2
- Authority
- JP
- Japan
- Prior art keywords
- fuel supply
- elastic member
- supply pipe
- fuel
- main body
- 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 77
- 238000002347 injection Methods 0.000 claims description 41
- 239000007924 injection Substances 0.000 claims description 41
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は内燃機関に取付けられる燃料噴射弁に
関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fuel injection valve installed in an internal combustion engine.
燃料噴射を行う内燃機関では、通常第１図に示
す如く、燃料噴射弁１は、本体外周に制御装置と
の接続端子であるカプラ２を備え、本体外周に防
音用カバーと一体のラバーリング３を介して取付
フランジ４及びフランジカバー５を嵌着して、本
体の一端に設けた噴射ノズル６を吸入管７の取付
孔８に挿入し、吸入管７のフランジ９にボルト１
０にて取付けられており、本体の他端に設けた燃
料供給口１１にＯリング１２を挿着して燃料供給
管１３に挿入して係止されている。
In an internal combustion engine that performs fuel injection, normally, as shown in FIG. 1, a fuel injection valve 1 includes a coupler 2 on the outer periphery of the main body, which is a connection terminal for connecting to a control device, and a rubber ring 3 integrated with a soundproof cover on the outer periphery of the main body. Fit the mounting flange 4 and flange cover 5 via
0, and an O-ring 12 is inserted into a fuel supply port 11 provided at the other end of the main body, and then inserted into a fuel supply pipe 13 and locked.
内燃機関の回転に伴なつて制御装置からの信号
により、ソレノイドコイル１４が励磁されて噴射
ノズル６の弁１５をリターンスプリング１６に抗
して引き上げて燃料噴射口１７を開口して吸入管
７内に燃料を噴射し、ソレノイドコイル１４が消
磁されるとリターンスプリング１６により弁１５
が下つて燃料噴射口１７が閉じられる。 As the internal combustion engine rotates, the solenoid coil 14 is energized by a signal from the control device, pulls up the valve 15 of the injection nozzle 6 against the return spring 16, opens the fuel injection port 17, and injects fuel into the intake pipe 7. When the solenoid coil 14 is demagnetized, the return spring 16 closes the valve 15.
is lowered and the fuel injection port 17 is closed.
ところが、燃料噴射弁は、内燃機関の回転その
ものによる振動及びその回転に伴なつて、燃料噴
射弁の弁体が上下に移動して噴射口を開閉するの
で、噴射弁本体を上下に振動して燃料噴射弁の耐
久性に不具合を生ずる場合があり、また、燃料噴
射弁が吸入管に堅固に取付けられているので、弁
の上下動によるバルブシーテイング音が大きかつ
た。 However, fuel injection valves vibrate due to the rotation of the internal combustion engine itself, and the valve body of the fuel injection valve moves up and down to open and close the injection port as the internal combustion engine rotates, causing the injection valve body to vibrate up and down. This may cause problems in the durability of the fuel injection valve, and since the fuel injection valve is firmly attached to the intake pipe, the valve seating noise caused by the vertical movement of the valve is loud.
また、燃料噴射弁の本体の一端に設けた噴射ノ
ズルを弾性部材を介して吸入管に、本体の他端に
設けた燃料供給口を別の弾性部材を介して燃料供
給管にそれぞれ浮動状態に支持取付けた場合に
は、バルブシーテイング音が減少しても、燃料噴
射弁が回動してカプラと制御装置との接続不良が
発生することがある。 In addition, the injection nozzle provided at one end of the fuel injection valve body is connected to the suction pipe via an elastic member, and the fuel supply port provided at the other end of the main body is connected to the fuel supply pipe via another elastic member in a floating state. If the coupler is supported and mounted, even if the valve seating noise is reduced, the fuel injection valve may rotate and a connection failure between the coupler and the control device may occur.
このため、特開昭55−7993号公報に開示されて
いる如く、吸入管に一端を固設した保持部材の他
端をゴムリングを介して燃料噴射弁の本体に取付
けて、燃料噴射弁の上下動振動及び回動を規制し
ている。 For this reason, as disclosed in Japanese Patent Application Laid-Open No. 55-7993, one end of a holding member is fixed to the suction pipe, and the other end of the holding member is attached to the main body of the fuel injection valve via a rubber ring. Vertical vibration and rotation are regulated.
ところが、このような保持手段を用いても、バ
ルブシーテイング音については特に対策が施され
ていなかつた。
However, even if such a holding means is used, no particular measures have been taken against valve seating noise.
本考案は上記の課題を解決するもので、燃料噴
射弁の回動を防止することができ、弁体の上下動
に伴う燃料噴射弁の上下振動を吸収し、かつバル
ブシーテイング音をさらに減少させた燃料噴射弁
を提供することを目的とするものである。 This invention solves the above problems and can prevent rotation of the fuel injector, absorb the vertical vibration of the fuel injector caused by the vertical movement of the valve body, and further reduce valve seating noise. The object of the present invention is to provide a fuel injection valve that has the following characteristics.
本考案は上記目的を達成するため、本体外周に
制御装置との接続端子を備え、本体の一端に設け
た噴射ノズルを弾性部材を介して吸入管に、本体
の他端に設けた燃料供給口を別の弾性部材を介し
てエルボ部を有する燃料供給管にそれぞれ浮動状
態に支持される燃料噴射弁において、本体の接続
端子よりも噴射ノズル側の部分を囲繞するように
防音用カバーを嵌着すると共に、該防音用カバー
の接続端子隣接部から前記燃料供給管に亘る部分
を囲繞するように筒状の弾性部材を嵌着し、該弾
性部材は、一端に前記防音用カバーの嵌着部と、
他端に前記燃料供給管の嵌着部と、両嵌着部を連
設し、前記燃料供給口から燃料供給管のエルボ部
に嵌着される屈曲部と、前記接続端子を囲繞する
開口とを備えていることを特徴としている。
In order to achieve the above object, the present invention has a connection terminal with a control device on the outer periphery of the main body, connects the injection nozzle provided at one end of the main body to the suction pipe via an elastic member, and connects the fuel supply port provided at the other end of the main body to the suction pipe. In a fuel injection valve that is supported in a floating state by a fuel supply pipe having an elbow portion through another elastic member, a soundproof cover is fitted so as to surround the part of the main body closer to the injection nozzle than the connection terminal. At the same time, a cylindrical elastic member is fitted so as to surround a portion of the soundproofing cover extending from a portion adjacent to the connection terminal to the fuel supply pipe, and the elastic member has one end attached to the fitting portion of the soundproofing cover. and,
A fitting part of the fuel supply pipe at the other end, a bending part which connects the fitting parts to the elbow part of the fuel supply pipe from the fuel supply port, and an opening surrounding the connection terminal. It is characterized by having the following.
したがつて、燃料供給管のエルボ部の形状に沿
つた状態で嵌着される燃料噴射弁の屈曲部と、弾
性部材の防音用カバーの嵌着部と防音用カバーと
の摩擦係合とにより、燃料噴射弁の回動が防止さ
れると共に、弁体の上下動に伴う燃料噴射弁の上
下振動が吸収され、しかも、防音用カバーと弾性
部材とにより、バルブシーテイング音が遮断され
て、バルブシーテイング音をさらに減少すること
ができる。
Therefore, due to the bending part of the fuel injector that is fitted along the shape of the elbow part of the fuel supply pipe, and the frictional engagement between the fitting part of the soundproofing cover made of the elastic member and the soundproofing cover, Rotation of the fuel injection valve is prevented, vertical vibration of the fuel injection valve due to vertical movement of the valve body is absorbed, and valve seating noise is blocked by the soundproof cover and the elastic member. Valve seating noise can be further reduced.
本考案の一実施例を第２図に基づいて説明す
る。図中第１図と同一要素のものは同一の符号を
つけて説明する。
An embodiment of the present invention will be described based on FIG. In the figure, the same elements as in FIG. 1 are given the same reference numerals and will be explained.
燃料噴射弁１は、本体外周に制御装置との接続
端子であるカプラ２を備えており、本体のカプラ
２よりも噴射ノズル６側の部分を囲繞するように
ゴム製の防音用カバー２０が嵌着されている。ま
た、燃料噴射弁１は、本体の一端に設けた噴射ノ
ズル６を弾性部材であるラバーリング２１を介し
て吸入管７の取付孔８に挿入し、本体の他端に設
けた燃料供給口１１を弾性部材であるＯリング１
２とダンパカラー２２を介してエルボ部を有する
燃料供給管１３に挿入して、吸入管７と燃料供給
管１３とで浮動状態に支持されている。 The fuel injection valve 1 is equipped with a coupler 2, which is a connection terminal with a control device, on the outer periphery of the main body, and a rubber soundproof cover 20 is fitted so as to surround the part of the main body that is closer to the injection nozzle 6 than the coupler 2. It is worn. The fuel injection valve 1 also includes an injection nozzle 6 provided at one end of the main body, which is inserted into a mounting hole 8 of a suction pipe 7 via a rubber ring 21, which is an elastic member, and a fuel supply port 11 provided at the other end of the main body. O-ring 1 which is an elastic member
2 and a damper collar 22 into a fuel supply pipe 13 having an elbow portion, and is supported in a floating state by the suction pipe 7 and the fuel supply pipe 13.
さらに、燃料噴射弁１と燃料供給管１３は、防
音用カバー２０のカプラ２隣接部から燃料供給管
１３に亘る部分を囲繞するようにゴム製の筒状の
弾性部材２３が嵌着されている。この弾性部材２
３は、一端に前記防音用カバー２０の嵌着部２３
ａと、他端に前記燃料供給管１３の嵌着部２３ｄ
と、両嵌着部２３ａ，２３ｄを連設し、燃料供給
口１１から燃料供給管１３のエルボ部に嵌着され
る屈曲部２３ｃと、カプラ２を囲繞する開口２３
ｂとを備えている。 Further, a cylindrical elastic member 23 made of rubber is fitted around the fuel injection valve 1 and the fuel supply pipe 13 so as to surround the part of the soundproof cover 20 from the part adjacent to the coupler 2 to the fuel supply pipe 13. . This elastic member 2
3 has a fitting part 23 of the soundproof cover 20 at one end.
a, and a fitting portion 23d of the fuel supply pipe 13 at the other end.
, a bent part 23 c which connects both fitting parts 23 a and 23 d and which is fitted into the elbow part of the fuel supply pipe 13 from the fuel supply port 11 , and an opening 23 surrounding the coupler 2 .
b.
したがつて、この弾性部材２３は、嵌着部２３
ａを燃料噴射弁１の本体に防音用カバー２０にオ
ーバーラツプして嵌着し、カプラ２を開口２３ｂ
から突出させ、屈曲部２３ｃを燃料供給口１１か
ら燃料供給管１３のエルボ部の形状に沿つて屈曲
させて嵌着し、嵌着部２３ｄを燃料供給管１３に
嵌着して、燃料供給管１３を囲繞すると共に、防
音用カバー２０とにより燃料噴射弁１を囲繞して
いる。 Therefore, this elastic member 23
a to the main body of the fuel injection valve 1, overlapping the soundproof cover 20, and insert the coupler 2 into the opening 23b.
The bent part 23c is bent and fitted from the fuel supply port 11 along the shape of the elbow part of the fuel supply pipe 13, and the fitting part 23d is fitted to the fuel supply pipe 13, so that the fuel supply pipe 13, and a soundproof cover 20 surrounds the fuel injection valve 1.
このように、弾性部材２３は、交差する燃料噴
射弁１の軸方向と燃料供給管１３の軸方向に跨が
つて燃料噴射弁１と燃料供給管１３とに嵌着され
るので、燃料噴射弁１の回動が防止され、また、
弾性部材２３と防音用カバー２０との摩擦係合と
ラバーリング２１及びダンパカラー２２と相俟つ
て、弁体の上下動に伴う燃料噴射弁１の上下振動
を吸収することができ、さらに、防音用カバーと
弾性部材とにより、バルブシーテイング音が遮断
されて、バルブシーテイング音をさらに減少する
ことができる。 In this way, the elastic member 23 is fitted to the fuel injection valve 1 and the fuel supply pipe 13 so as to span the axial direction of the fuel injection valve 1 and the axial direction of the fuel supply pipe 13, which intersect with each other. 1 is prevented from rotating, and
The frictional engagement between the elastic member 23 and the soundproofing cover 20, together with the rubber ring 21 and the damper collar 22, can absorb the vertical vibration of the fuel injection valve 1 caused by the vertical movement of the valve body, and furthermore, the soundproofing The valve seating sound is blocked by the cover and the elastic member, thereby further reducing the valve seating sound.
本考案は上記のように、本体外周に制御装置と
の接続端子を備えた燃料噴射弁を、本体の一端に
設けた噴射ノズルにて弾性部材を介して吸入管
に、本体の他端に設けた燃料供給口にて別の弾性
部材を介してエルボ部を有する燃料供給管にそれ
ぞれ浮動状態に支持し、本体の接続端子よりも噴
射ノズル側の部分を囲繞するように防音用カバー
を嵌着すると共に、防音用カバーの接続端子隣接
部から燃料供給管に亘る部分を囲繞するように筒
状の弾性部材を嵌着し、弾性部材を、一端に前記
防音用カバーの嵌着部と、他端に前記燃料供給管
の嵌着部と、両嵌着部を連設し、前記燃料供給口
から燃料供給管のエルボ部に嵌着される屈曲部
と、前記接続端子を囲繞する開口とで形成したの
で、燃料噴射弁の回動が防止され、また、弾性部
材と防音用カバーとの摩擦係合と燃料噴射弁の両
端に配置した弾性部材と相俟つて、弁体の上下動
に伴う燃料噴射弁の上下振動を有効に吸収するこ
とができ、燃料噴射弁の耐久性が向上し、さら
に、防音用カバーと弾性部材とにより、バルブシ
ーテイング音が遮断されて、バルブシーテイング
音をさらに減少することができる。
As described above, the present invention has a fuel injection valve equipped with a connection terminal to a control device on the outer periphery of the main body, an injection nozzle provided at one end of the main body, and an inlet pipe connected to the suction pipe via an elastic member at the other end of the main body. Each fuel supply port has an elbow part and is supported in a floating state via another elastic member, and a soundproof cover is fitted so as to surround the part of the main body closer to the injection nozzle than the connection terminal. At the same time, a cylindrical elastic member is fitted so as to surround a portion of the soundproof cover extending from a portion adjacent to the connection terminal to the fuel supply pipe, and the elastic member is attached to one end of the fitted portion of the soundproof cover and the other. A fitting portion of the fuel supply pipe is connected to the fitting portion of the fuel supply pipe at the end thereof, and a bent portion is fitted from the fuel supply port to an elbow portion of the fuel supply pipe, and an opening surrounding the connection terminal. This structure prevents the fuel injector from rotating, and the frictional engagement between the elastic member and the soundproof cover and the elastic members disposed at both ends of the fuel injector prevent the rotation of the fuel injector as the valve body moves up and down. Vertical vibrations of the fuel injector can be effectively absorbed, improving the durability of the fuel injector.Furthermore, the soundproof cover and elastic member block valve seating noise, reducing valve seating noise. It can be further reduced.
第１図は従来の燃料噴射弁の取付構造を示す断
面図、第２図は本考案の一実施例を示す断面図で
ある。
１……燃料噴射弁、２……カプラ、６……噴射
ノズル、７……吸入管、８……取付孔、１１……
燃料供給口、１２……Ｏリング、１３……燃料供
給管、２０……防音用カバー、２１……ラバーリ
ング、２２……ダンパカラー、２３……弾性部
材、２３ａ……嵌着部、２３ｂ……開口、２３ｃ
……屈曲部、２３ｄ……嵌着部。
FIG. 1 is a sectional view showing a conventional fuel injection valve mounting structure, and FIG. 2 is a sectional view showing an embodiment of the present invention. 1...Fuel injection valve, 2...Coupler, 6...Injection nozzle, 7...Suction pipe, 8...Mounting hole, 11...
Fuel supply port, 12...O ring, 13...Fuel supply pipe, 20...Soundproof cover, 21...Rubber ring, 22...Damper collar, 23...Elastic member, 23a...Fitting part, 23b ...Opening, 23c
...Bending portion, 23d... Fitting portion.
Claims (1)
の一端に設けた噴射ノズルを弾性部材を介して吸
入管に、本体の他端に設けた燃料供給口を別の弾
性部材を介してエルボ部を有する燃料供給管にそ
れぞれ浮動状態に支持される燃料噴射弁におい
て、本体の接続端子よりも噴射ノズル側の部分を
囲繞するように防音用カバーを嵌着すると共に、
該防音用カバーの接続端子隣接部から前記燃料供
給管に亘る部分を囲繞するように筒状の弾性部材
を嵌着し、該弾性部材は、一端に前記防音用カバ
ーの嵌着部と、他端に前記燃料供給管の嵌着部
と、両嵌着部を連設し、前記燃料供給口から燃料
供給管のエルボ部に嵌着される屈曲部と、前記接
続端子を囲繞する開口とを備えていることを特徴
とする燃料噴射弁。 A connection terminal with a control device is provided on the outer periphery of the main body, an injection nozzle provided at one end of the main body is connected to the suction pipe via an elastic member, and a fuel supply port provided at the other end of the main body is connected to the elbow portion via another elastic member. In the fuel injection valves each supported in a floating state by a fuel supply pipe having
A cylindrical elastic member is fitted so as to surround a portion of the soundproofing cover extending from a portion adjacent to the connection terminal to the fuel supply pipe, and the elastic member has a fitting portion of the soundproofing cover at one end, and the other end. A fitting portion of the fuel supply pipe and both fitting portions are connected to each other at an end, a bent portion fitting from the fuel supply port to an elbow portion of the fuel supply pipe, and an opening surrounding the connection terminal. A fuel injection valve characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12170484U JPS6136182U (en) | 1984-08-08 | 1984-08-08 | fuel injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12170484U JPS6136182U (en) | 1984-08-08 | 1984-08-08 | fuel injection valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6136182U JPS6136182U (en) | 1986-03-06 |
| JPH0413416Y2 true JPH0413416Y2 (en) | 1992-03-27 |
Family
ID=30680484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12170484U Granted JPS6136182U (en) | 1984-08-08 | 1984-08-08 | fuel injection valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6136182U (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3841258B2 (en) * | 2000-03-29 | 2006-11-01 | 本田技研工業株式会社 | Engine with injector soundproof cover |
| JP2004239102A (en) * | 2003-02-04 | 2004-08-26 | Honda Motor Co Ltd | Installing structure of fuel injector for engine |
| JP2004360626A (en) * | 2003-06-06 | 2004-12-24 | Hitachi Unisia Automotive Ltd | Fuel injection valve |
| JP3560963B2 (en) * | 2003-07-07 | 2004-09-02 | 本田技研工業株式会社 | Motorcycle engine |
| JP5055808B2 (en) * | 2006-04-04 | 2012-10-24 | トヨタ自動車株式会社 | Fuel cell system |
| BR112020006173B1 (en) * | 2017-09-29 | 2023-04-11 | Honda Motor Co., Ltd | FIXING STRUCTURE FOR INJECTOR |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS557993A (en) * | 1978-06-24 | 1980-01-21 | Bosch Gmbh Robert | Fuel injector |
| JPS55117067A (en) * | 1979-03-02 | 1980-09-09 | Bosch Gmbh Robert | Fuel injector for internal combustion engine |
| JPS5951157A (en) * | 1982-09-20 | 1984-03-24 | Honda Motor Co Ltd | Construction for mounting of fuel injection valve |
-
1984
- 1984-08-08 JP JP12170484U patent/JPS6136182U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS557993A (en) * | 1978-06-24 | 1980-01-21 | Bosch Gmbh Robert | Fuel injector |
| JPS55117067A (en) * | 1979-03-02 | 1980-09-09 | Bosch Gmbh Robert | Fuel injector for internal combustion engine |
| JPS5951157A (en) * | 1982-09-20 | 1984-03-24 | Honda Motor Co Ltd | Construction for mounting of fuel injection valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6136182U (en) | 1986-03-06 |
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