JP2606130Y2 - Lubrication structure of fuel injection pump - Google Patents
Lubrication structure of fuel injection pumpInfo
- Publication number
- JP2606130Y2 JP2606130Y2 JP1992028769U JP2876992U JP2606130Y2 JP 2606130 Y2 JP2606130 Y2 JP 2606130Y2 JP 1992028769 U JP1992028769 U JP 1992028769U JP 2876992 U JP2876992 U JP 2876992U JP 2606130 Y2 JP2606130 Y2 JP 2606130Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- governor
- pump body
- fuel injection
- pump
- 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 - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】この考案は、ディーゼルエンジン
の燃料噴射ポンプの潤滑構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubrication structure for a fuel injection pump of a diesel engine.
【０００２】[0002]
【従来の技術】ディーゼルエンジンの燃料噴射ポンプ
は、ポンプ本体側に供給された潤滑油がカムシャフトか
らガバナ側に伝わり、各部を潤滑するようになっている
（実開平３−５２３１０号公報等参照）。2. Description of the Related Art In a fuel injection pump for a diesel engine, lubricating oil supplied to a pump body is transmitted from a camshaft to a governor to lubricate each part (see Japanese Utility Model Laid-Open No. 3-52310). ).
【０００３】[0003]
【考案が解決しようとする課題】しかし、このように潤
滑油をポンプ本体側から供給するものだと、ガバナの十
分な潤滑を行う場合、ポンプ本体側の潤滑油量が必要以
上に増えてしまう。However, when lubricating oil is supplied from the pump body side as described above, the amount of lubricating oil on the pump body side increases more than necessary when sufficient governor lubrication is performed. .
【０００４】このため、ポンププランジャによって吸い
上げられる潤滑油量が増加し、潤滑油の消費量が増加す
ると共に、エンジン排気ガス中の微粒子成分も増加する
という問題がある。[0004] Therefore, there is a problem that the amount of lubricating oil sucked up by the pump plunger increases, the amount of consumption of lubricating oil increases, and the particulate component in engine exhaust gas also increases.
【０００５】この考案は、このような問題点を解決する
ことを目的としている。The purpose of the present invention is to solve such a problem.
【０００６】[0006]
【課題を解決するための手段】本考案は、列型燃料噴射
ポンプのポンプ本体部とガバナ部の側面へ、ポンプ本体
部とガバナ部の各部分潤滑のために適当量のオイルを溜
めるように、それぞれ独立してオイルの供給孔と排出孔
からなる１組のオイル孔を開設すると共に、オイル供給
孔の穴径をそれぞれ所定の潤滑流量となるように設定
し、ポンプ本体部からガバナ部に挿通されるカムシャフ
トの軸受部に、ポンプ本体部とガバナ部とを遮断して密
封するオイルシールを嵌装した。According to the present invention, a pump body is provided on a side of a pump body and a governor of a line type fuel injection pump.
Keep an appropriate amount of oil for the lubrication of the parts and governor.
In this way, a pair of oil supply holes and oil discharge holes are independently opened, and the diameters of the oil supply holes are set so as to have a predetermined lubrication flow rate. An oil seal for shutting off and sealing the pump body and the governor was fitted to the bearing of the camshaft inserted through the governor.
【０００７】[0007]
【作用】したがって、ポンプ本体部とガバナ部へそれぞ
れ独立に必要量のオイルを適確に供給することができ、
余分なオイル供給を防止できる。また、ポンプ本体部と
ガバナ部の側面へオイルの供給孔と排出孔を設けたの
で、ポンプ本体部やガバナ部の各部分潤滑のために適当
量のオイルを溜めておくことができる。さらに、ポンプ
本体部とガバナ部とのオイルを遮断するためにカムシャ
フトの軸受部にオイルシールを嵌装したので、オイルの
移動を確実に阻止できる。[Function] Therefore, it is possible to supply the required amount of oil to the pump body and the governor independently independently and accurately.
Excess oil supply can be prevented. Further, since the oil supply hole and the discharge hole are provided on the side surfaces of the pump body and the governor, an appropriate amount of oil can be stored for partial lubrication of the pump body and the governor. Further, since the oil seal is fitted to the bearing of the camshaft to shut off the oil between the pump body and the governor, the movement of the oil can be reliably prevented.
【０００８】[0008]
【実施例】図１、図２は本考案の実施例を示すもので、
１０は列型の燃料噴射ポンプである。1 and 2 show an embodiment of the present invention.
Reference numeral 10 denotes a row type fuel injection pump.
【０００９】燃料噴射ポンプ１０は、カムシャフト１１
の回転によってエンジンの各燃料噴射ノズルに燃料を圧
送するシリンダと同数のプランジャを設けたポンプ本体
部１２と、カムシャフト１１に連結する調速機構のガバ
ナ部１３からなる。１４はタイマで、この先にカップリ
ングが取付けられ、エンジンとシャフトで連結される。The fuel injection pump 10 includes a camshaft 11
A pump body 12 provided with the same number of plungers as the number of cylinders for feeding fuel to each fuel injection nozzle of the engine by rotation of the engine, and a governor 13 of a speed control mechanism connected to the camshaft 11. Reference numeral 14 denotes a timer, to which a coupling is attached, and which is connected to the engine by a shaft.
【００１０】そして、ポンプ本体部１２に潤滑油を供給
するオイル供給孔１５と戻し用のオイル排出孔１６が、
これとは別にガバナ部１３に潤滑油を供給するオイル供
給孔１７と戻し用のオイル排出孔１８がそれぞれ開設さ
れる。An oil supply hole 15 for supplying lubricating oil to the pump body 12 and a return oil discharge hole 16 are provided.
Separately, an oil supply hole 17 for supplying lubricating oil to the governor section 13 and an oil discharge hole 18 for return are opened.
【００１１】オイル供給孔１５，１７には、エンジンの
オイルギャラリ部から供給通路１９，２０を介して図示
しない潤滑油ポンプに接続され、潤滑油ポンプから送ら
れた潤滑油はオイル供給孔１５，１７からポンプ本体部
内、ガバナ部内に供給され、それぞれ各部を潤滑するよ
うになっている。The oil supply holes 15 and 17 are connected to a lubricating oil pump (not shown) from the oil gallery of the engine via supply passages 19 and 20, and lubricating oil sent from the lubricating oil pump is supplied to the oil supply holes 15 and 17. The lubricating oil is supplied to the inside of the pump main body and the governor from the pump 17 to lubricate each part.
【００１２】潤滑を終えた油は、オイル排出孔１６，１
８から戻し通路２１，２２を介してエンジンのオイルパ
ンに戻されるようになっている。The lubricated oil is supplied to the oil discharge holes 16, 1
8 is returned to the oil pan of the engine via return passages 21 and 22.
【００１３】また、ポンプ本体部１２からガバナ部１３
に挿通されるカムシャフト１１の軸受部２３に、ポンプ
本体部側とガバナ部側とを密封するオイルシール２４が
嵌装される。Further, the governor section 13 is connected to the pump body section 12.
An oil seal 24 for sealing the pump body side and the governor side is fitted to a bearing 23 of the camshaft 11 inserted into the camshaft 11.
【００１４】なお、供給通路１９，２０はそれぞれ所定
径に設定、あるいはこれらの通路に流量制御バルブ等が
設置され、ポンプ本体部１２、ガバナ部１３にそれぞれ
必要量の潤滑油が供給されるようにしてある。The supply passages 19 and 20 are each set to a predetermined diameter, or a flow control valve or the like is installed in these passages so that necessary amounts of lubricating oil are supplied to the pump body 12 and the governor 13 respectively. It is.
【００１５】このような構成のため、ポンプ本体部１
２、ガバナ部１３にそれぞれ必要量の潤滑油を供給で
き、またポンプ本体部側の潤滑油がガバナ部側に流入し
たり、ガバナ部側の潤滑油がポンプ本体部側に流入する
ことはない。Because of such a configuration, the pump body 1
2. A required amount of lubricating oil can be supplied to the governor portion 13, and the lubricating oil on the pump body side does not flow into the governor portion, and the lubricating oil on the governor portion does not flow into the pump body portion. .
【００１６】このため、必要潤滑油量が異なるポンプ本
体部１２、ガバナ部１３それぞれを的確に潤滑できると
共に、ポンプ本体部側の潤滑油量が増えて潤滑油がプラ
ンジャ側に吸入つまり燃料中に混入されることを防止で
き、これにより潤滑油の消費量が大幅に低減し、かつエ
ンジン排気ガス中の微粒子成分の排出量を低減すること
ができる。Therefore, the pump body 12 and the governor section 13 which require different amounts of lubricating oil can be lubricated accurately, and the amount of lubricating oil on the pump body increases, so that lubricating oil is sucked into the plunger, that is, in the fuel. Mixing can be prevented, whereby the consumption of lubricating oil can be significantly reduced, and the emission of particulate components in engine exhaust gas can be reduced.
【００１７】[0017]
【考案の効果】以上のように、列型燃料噴射ポンプのポ
ンプ本体部とガバナ部の側面へ、ポンプ本体部とガバナ
部の各部分潤滑のために適当量のオイルを溜めるよう
に、それぞれ独立してオイルの供給孔と排出孔からなる
１組のオイル孔を開設すると共に、オイル供給孔の穴径
をそれぞれ所定の潤滑流量となるように設定し、ポンプ
本体部からガバナ部に挿通されるカムシャフトの軸受部
に、ポンプ本体部とガバナ部とを遮断して密封するオイ
ルシールを嵌装したので、ポンプ本体部、ガバナ部をそ
れぞれ独立に必要量の潤滑油を供給でき、適確に潤滑で
きると共に、潤滑油の燃料内への混入による消費を大幅
に低減でき、エンジン排気中の微粒子成分の排出量を低
減できる。さらに、ポンプ本体部とガバナ部とのオイル
を遮断するためにカムシャフトの軸受部にオイルシール
を嵌装したので、オイルの移動を確実に阻止できる。[Effect of the Invention] As described above, the pump body and the governor are moved to the side surfaces of the pump body and the governor of the row type fuel injection pump.
Keep an appropriate amount of oil for lubrication of each part
In addition, a pair of oil holes including an oil supply hole and an oil discharge hole are independently opened, and the diameters of the oil supply holes are set so as to have a predetermined lubricating flow rate, respectively. An oil seal that seals off and seals the pump body and governor is fitted to the bearing of the camshaft that is inserted into the camshaft, so that the required amount of lubricating oil can be supplied independently to the pump body and governor. , precisely with possible lubrication, the consumption by mixing into the fuel of the lubricating oil can be significantly reduced, Ru can reduce the emissions of particulate components in engine exhaust. Et al is, since the fitted an oil seal to the bearing portion of the camshaft in order to cut off the oil of the pump main body and the governor unit, it can be reliably prevented from moving oil.
【図１】燃料噴射ポンプの側面図である。FIG. 1 is a side view of a fuel injection pump.
【図２】カムシャフトシール部の断面図である。FIG. 2 is a sectional view of a camshaft seal portion.
１０ 燃料噴射ポンプ １１ カムシャフト １２ ポンプ本体部 １３ ガバナ部 １５，１７ オイル供給孔 １６，１８ オイル排出孔 １９，２０ 供給通路 ２４ オイルシール REFERENCE SIGNS LIST 10 fuel injection pump 11 camshaft 12 pump body 13 governor 15, 17 oil supply hole 16, 18 oil discharge hole 19, 20 supply passage 24 oil seal
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−81531（ＪＰ，Ａ) 特開 平１−141233（ＪＰ，Ａ) 実開 昭53−138024（ＪＰ，Ｕ) わかり易い機械講座19「油圧機械」朱 雀英八郎，細田芳彦著，明現社発行（Ｓ 51．６．20）ｐ．20〜ｐ23 ２．３配管 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-81531 (JP, A) JP-A-1-141233 (JP, A) JP-A-53-138024 (JP, U) Easy-to-understand machine lecture 19 Hydraulic Machines, "written by Eihachiro Suzaku and Yoshihiko Hosoda, published by Meidensha (S51.6.20) p. 20 to p23 2.3 Piping
Claims (1)
ナ部の側面へ、ポンプ本体部とガバナ部の各部分潤滑の
ために適当量のオイルを溜めるように、それぞれ独立し
てオイルの供給孔と排出孔からなる１組のオイル孔を開
設すると共に、オイル供給孔の穴径をそれぞれ所定の潤
滑流量となるように設定し、ポンプ本体部からガバナ部
に挿通されるカムシャフトの軸受部に、ポンプ本体部と
ガバナ部とを遮断して密封するオイルシールを嵌装した
ことを特徴とする燃料噴射ポンプの潤滑構造。1. A partial lubrication of the pump body and the governor to the side surfaces of the pump body and the governor of the row type fuel injection pump .
In order to accumulate an appropriate amount of oil, a pair of oil supply holes and an oil supply hole are independently opened so that the oil supply holes have a predetermined lubrication flow rate. A lubricating structure for a fuel injection pump, wherein an oil seal for shutting off and sealing the pump body and the governor is fitted to a bearing of a camshaft which is set and inserted from the pump body to the governor. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992028769U JP2606130Y2 (en) | 1992-04-30 | 1992-04-30 | Lubrication structure of fuel injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992028769U JP2606130Y2 (en) | 1992-04-30 | 1992-04-30 | Lubrication structure of fuel injection pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0587205U JPH0587205U (en) | 1993-11-26 |
| JP2606130Y2 true JP2606130Y2 (en) | 2000-09-25 |
Family
ID=12257617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992028769U Expired - Fee Related JP2606130Y2 (en) | 1992-04-30 | 1992-04-30 | Lubrication structure of fuel injection pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2606130Y2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5632610Y2 (en) * | 1977-04-08 | 1981-08-03 | ||
| JPH01141233A (en) * | 1987-11-25 | 1989-06-02 | Hitachi Ltd | Plain bearing |
| JP2844706B2 (en) * | 1989-08-25 | 1999-01-06 | 株式会社デンソー | Fuel injection device |
-
1992
- 1992-04-30 JP JP1992028769U patent/JP2606130Y2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| わかり易い機械講座１９「油圧機械」朱雀英八郎，細田芳彦著，明現社発行（Ｓ５１．６．２０）ｐ．２０〜ｐ２３ ２．３配管 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0587205U (en) | 1993-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |