JPS58158163U - Diesel engine fuel filter blockage prevention device - Google Patents

Diesel engine fuel filter blockage prevention device

Info

Publication number
JPS58158163U
JPS58158163U JP5656582U JP5656582U JPS58158163U JP S58158163 U JPS58158163 U JP S58158163U JP 5656582 U JP5656582 U JP 5656582U JP 5656582 U JP5656582 U JP 5656582U JP S58158163 U JPS58158163 U JP S58158163U
Authority
JP
Japan
Prior art keywords
fuel
diesel engine
prevention device
fuel filter
clogging prevention
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.)
Granted
Application number
JP5656582U
Other languages
Japanese (ja)
Other versions
JPS6224045Y2 (en
Inventor
川合　宣明
茂 青木
Original Assignee
トヨタ自動車株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by トヨタ自動車株式会社 filed Critical トヨタ自動車株式会社
Priority to JP5656582U priority Critical patent/JPS58158163U/en
Publication of JPS58158163U publication Critical patent/JPS58158163U/en
Application granted granted Critical
Publication of JPS6224045Y2 publication Critical patent/JPS6224045Y2/ja
Granted legal-status Critical Current

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  • Fuel-Injection Apparatus (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係る燃料フィルタ閉塞防止装置の一実
施例を備えたディーゼルエンジンの燃料系の系統図、第
２図は本考案に係る燃料フィルタ閉塞篩土装置の他の実
施例を備えたディーゼルエンジンの燃料系の一部系統図
である。 １・・・・・・燃料タンク、２・・・・・・燃料フィル
タ、３・・・・・・燃料噴射ポンプ、４・・・・・・噴
射ノズル、５，５′・・・・・・フューエル・リターン
パイプ、６・・・・・・三方弁、７・・・・・・絞り、
８・・・・・・バイパス通路、９・・・・・・二方弁。FIG. 1 is a system diagram of a fuel system of a diesel engine equipped with an embodiment of the fuel filter clogging prevention device according to the present invention, and FIG. 2 is a diagram showing another embodiment of the fuel filter clogging prevention device according to the present invention. FIG. 2 is a partial system diagram of the fuel system of a diesel engine. 1... Fuel tank, 2... Fuel filter, 3... Fuel injection pump, 4... Injection nozzle, 5, 5'...・Fuel return pipe, 6...3-way valve, 7...throttle,
8... Bypass passage, 9... Two-way valve.

Claims (4)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）燃料タンクの燃料を燃料フィルタを介して燃料噴
射ポンプに供給し所定時に各気筒部に設けられたノズル
より高圧噴射すると共に該ノズルおよび前記燃料噴射ポ
ンプの余剰燃料をリターンパイプを介して前記燃料タン
クに返送する燃料系を有したディーゼルエンジンに於い
て、低温時に余剰燃料の大部分を燃料フィルタに供給す
ると共に温度上昇に応じて切り換えられ、前記余剰燃料
の大部分を燃料タンクに返送する弁装置を、前記リター
ンパイプの途中に配設し、かつ該弁装置の前後をバイパ
ス通路で接続するよう構成したことを特徴とするディー
ゼルエンジンの燃料フィルタ閉塞防止装置。(1) The fuel in the fuel tank is supplied to the fuel injection pump via the fuel filter, and is injected at a high pressure from the nozzle provided in each cylinder at a predetermined time, and excess fuel from the nozzle and the fuel injection pump is removed via the return pipe. In a diesel engine having a fuel system that returns fuel to the fuel tank, most of the surplus fuel is supplied to the fuel filter at low temperatures, and the filter is switched in response to a rise in temperature, and most of the surplus fuel is returned to the fuel tank. A fuel filter clogging prevention device for a diesel engine, characterized in that a valve device is disposed in the middle of the return pipe, and the front and back of the valve device are connected by a bypass passage. （２）　　前記弁装置は三方弁であることを特徴とする
実用新案登録請求の範囲第（１）項記載のディーゼルエ
ンジンの燃料フィルタ閉塞防止装置。(2) The fuel filter clogging prevention device for a diesel engine according to claim (1), wherein the valve device is a three-way valve. （３）前記弁装置は三方弁であることを特徴とする実用
新案登録請求の範囲第（１）項記載のディーゼルエンジ
ンの燃料フィルタ閉塞防止装置。(3) The fuel filter clogging prevention device for a diesel engine as set forth in claim (1), wherein the valve device is a three-way valve. （４）前記バイパス通路中に絞りを設けたことを特徴と
する実用新案登録請求の範囲第（１）項記載のディーゼ
ルエンジンの燃料フィルタ閉塞防止装置。(4) The fuel filter clogging prevention device for a diesel engine as set forth in claim (1), characterized in that a throttle is provided in the bypass passage.
JP5656582U 1982-04-19 1982-04-19 Diesel engine fuel filter blockage prevention device Granted JPS58158163U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5656582U JPS58158163U (en) 1982-04-19 1982-04-19 Diesel engine fuel filter blockage prevention device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5656582U JPS58158163U (en) 1982-04-19 1982-04-19 Diesel engine fuel filter blockage prevention device

Publications (2)

Publication Number Publication Date
JPS58158163U true JPS58158163U (en) 1983-10-21
JPS6224045Y2 JPS6224045Y2 (en) 1987-06-19

Family

ID=30067086

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5656582U Granted JPS58158163U (en) 1982-04-19 1982-04-19 Diesel engine fuel filter blockage prevention device

Country Status (1)

Country Link
JP (1) JPS58158163U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60142048A (en) * 1983-12-15 1985-07-27 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 Apparatus for changing over flooding flow amount of diesel jet pump in relation to temperature
JPS63202764U (en) * 1987-06-18 1988-12-27

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5546093A (en) * 1978-09-26 1980-03-31 Bosch Gmbh Robert Fuel filter for diesel engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5546093A (en) * 1978-09-26 1980-03-31 Bosch Gmbh Robert Fuel filter for diesel engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60142048A (en) * 1983-12-15 1985-07-27 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 Apparatus for changing over flooding flow amount of diesel jet pump in relation to temperature
JPS63202764U (en) * 1987-06-18 1988-12-27

Also Published As

Publication number Publication date
JPS6224045Y2 (en) 1987-06-19

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