JPH0484757U - - Google Patents
Info
- Publication number
- JPH0484757U JPH0484757U JP12798990U JP12798990U JPH0484757U JP H0484757 U JPH0484757 U JP H0484757U JP 12798990 U JP12798990 U JP 12798990U JP 12798990 U JP12798990 U JP 12798990U JP H0484757 U JPH0484757 U JP H0484757U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- return
- fuel injection
- injection pump
- guide tube
- 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
Links
- 239000000446 fuel Substances 0.000 claims description 35
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図及び第２図は本考案の実施例を示し、第
１図は戻し燃料接続部材周辺の要部縦断面図、第
２図は水冷３気筒デイーゼルエンジンの燃料供給
装置の概略説明図、第３図は従来技術を示す第１
図相当図である。
Ｅ……デイーゼルエンジン、１……燃料噴射ポ
ンプ、２……燃料噴射ノズル、３……オーバフロ
ー通路、４……戻し燃料接続部材、５……４の戻
し燃料入口、６……４の戻し燃料出口、７……戻
し燃料孔、８……ポンプハウジング、１０……燃
料案内筒、１０ａ……１０の一端寄り、１０ｂ…
…１０の他端寄り、１１……封止部材、１２……
係合鍔部、１３……１２の内壁、１４……受け止
め部、１５……１４の受け止め面、１６……１２
の係合翼、１７……１４の受け止め溝、８……燃
料パイプ。
1 and 2 show an embodiment of the present invention, FIG. 1 is a vertical sectional view of the main part around the return fuel connection member, FIG. 2 is a schematic explanatory diagram of a fuel supply system for a water-cooled three-cylinder diesel engine, Figure 3 is the first diagram showing the prior art.
It is a figure equivalent figure. E... Diesel engine, 1... Fuel injection pump, 2... Fuel injection nozzle, 3... Overflow passage, 4... Return fuel connection member, 5... Return fuel inlet at 4, 6... Return fuel at 4 Outlet, 7... return fuel hole, 8... pump housing, 10... fuel guide tube, 10a... near one end of 10, 10b...
...10 near the other end, 11... sealing member, 12...
Engaging flange portion, inner wall of 13...12, 14...receiving portion, receiving surface of 15...14, 16...12
17... 14 receiving groove, 8... fuel pipe.
Claims (1)
料噴射ノズル２に燃料パイプ１８を介して連通し
、 燃料噴射ノズル２をオーバフロー通路３及び戻
し燃料接続部材４を介して燃料噴射ポンプ１に連
通し、 戻し燃料接続部材４の戻し燃料入口５にオーバ
フロー通路３を接続し、戻し燃料接続部材４の戻
し燃料出口６を燃料噴射ポンプ１のポンプハウジ
ング８に空けた戻し燃料孔７に接続したデイーゼ
ルエンジンの燃料噴射ポンプへの燃料戻し装置に
おいて、 上記戻し燃料接続部材４を燃料案内筒１０と封
止部材１１と係合鍔部１２とから構成し、 上記燃料案内筒１０の途中部に可撓性を有する
係合鍔部１２を張り出し形成し、 燃料噴射ポンプ１のポンプハウジング８に戻し
燃料孔７に臨ませて先端が膨出した受け止め部１
４を突出し、 上記燃料案内筒１０の一端寄り１０ａを戻し燃
料孔７に嵌挿し、燃料案内筒１０の他端寄り１０
ｂをオーバフロー通路３に接続し、 係合鍔部１２の内壁１３を封止部材１１を介し
て受け止め部１４の受け止め面１５に油密可能に
接当し、 係合鍔部１２の外周側の係合翼１６を受け止め
部１４の受け止め溝１７に着脱自在に係合した事
を特徴とするデイーゼルエンジンの燃料噴射ポン
プへの燃料戻し装置。[Claims for Utility Model Registration] A fuel injection pump 1 of a diesel engine E is connected to a fuel injection nozzle 2 via a fuel pipe 18, and the fuel injection nozzle 2 injects fuel via an overflow passage 3 and a return fuel connection member 4. A return fuel hole 7 communicates with the pump 1 , connects the overflow passage 3 to the return fuel inlet 5 of the return fuel connection member 4 , and connects the return fuel outlet 6 of the return fuel connection member 4 to the pump housing 8 of the fuel injection pump 1 . In the fuel return device to a fuel injection pump of a diesel engine connected to a fuel injection pump, the return fuel connecting member 4 is composed of a fuel guide tube 10, a sealing member 11, and an engaging flange portion 12, and the fuel guide tube 10 is connected to A receiving part 1 is formed with a flexible engagement flange part 12 protruding from the part thereof, and is returned to the pump housing 8 of the fuel injection pump 1 so as to face the fuel hole 7 and has a bulged tip.
4, return the one end 10a of the fuel guide tube 10 and insert it into the fuel hole 7, and insert the other end 10a of the fuel guide tube 10.
b is connected to the overflow passage 3, the inner wall 13 of the engaging flange 12 is brought into oil-tight contact with the receiving surface 15 of the receiving part 14 via the sealing member 11, and the outer peripheral side of the engaging flange 12 is A fuel return device for a fuel injection pump of a diesel engine, characterized in that an engaging blade 16 is detachably engaged with a receiving groove 17 of a receiving part 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12798990U JPH0484757U (en) | 1990-11-29 | 1990-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12798990U JPH0484757U (en) | 1990-11-29 | 1990-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0484757U true JPH0484757U (en) | 1992-07-23 |
Family
ID=31875469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12798990U Pending JPH0484757U (en) | 1990-11-29 | 1990-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0484757U (en) |
-
1990
- 1990-11-29 JP JP12798990U patent/JPH0484757U/ja active Pending