WO1990011444A1 - Air vent apparatus for a fuel supply circuit - Google Patents

Air vent apparatus for a fuel supply circuit Download PDF

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Publication number
WO1990011444A1
WO1990011444A1 PCT/JP1989/000332 JP8900332W WO9011444A1 WO 1990011444 A1 WO1990011444 A1 WO 1990011444A1 JP 8900332 W JP8900332 W JP 8900332W WO 9011444 A1 WO9011444 A1 WO 9011444A1
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WO
WIPO (PCT)
Prior art keywords
fuel
air
supply circuit
air vent
pipe
Prior art date
Application number
PCT/JP1989/000332
Other languages
French (fr)
Japanese (ja)
Inventor
Fumihide Sato
Hiroaki Inoue
Toshio Kato
Original Assignee
Kabushiki Kaisha Komatsu Seisakusho
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 Kabushiki Kaisha Komatsu Seisakusho filed Critical Kabushiki Kaisha Komatsu Seisakusho
Priority to PCT/JP1989/000332 priority Critical patent/WO1990011444A1/en
Publication of WO1990011444A1 publication Critical patent/WO1990011444A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/20—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines characterised by means for preventing vapour lock
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/54—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by air purging means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0017—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor related to fuel pipes or their connections, e.g. joints or sealings

Definitions

  • the present invention relates to an air bleeding device for a fuel supply circuit of an internal combustion engine, and particularly to a fuel circuit of a diesel engine provided with a fuel filter at a position higher than a fuel injection pump. Regarding the air bleeding device.
  • an air extraction plug was screwed into a hole communicating with the fuel inlet at the top of the fuel filter.
  • a hole communicating with the fuel inlet at the top of the fuel filter For example, if air was mixed in the fuel supply circuit due to running out of fuel, , Loosen the air bleeding plug and crank the engine, or operate the manual priming pump to bleed air from the air bleeding plug.
  • an air vent hole is drilled in front of the check valve that is screwed into the overflow hole of the fuel injection pump, and the air in the fuel supply circuit is released from the fuel injection pump.
  • the method of bleeding air by raising it to a position higher than the pump and then guiding it to a fuel tank, etc. has also been used.
  • the present invention has been made in view of the circumstances described above, and its purpose is to provide a small diameter filter at the upper part of a fuel filter mounted higher than a fuel injection pump. Loosen the air bleeding plug by installing a damping joint with a relief and connecting the air bleeding pipe to the fuel tank The air in the fuel supply circuit can be removed either by clamping or by activating a manual priming pump. It is intended to provide an air bleeding device for a fuel supply circuit of a diesel engine.
  • a fuel filter provided at a position higher than a fuel injection pump, and a fuel filter provided at a position higher than the fuel injection pump.
  • a fin hole cap provided at the top and having an air vent hole communicating with the fuel outlet hole, and screwed into the air vent hole of the filter cap Small diameter that does not hinder the fuel injection amount of the fuel injection pump.
  • a pipe joint having a face, and air having one end connected to the pipe joint and the other end communicating with the fuel tank;
  • An air bleeding device for a fuel supply circuit of a diesel engine including a bleeding pipe is provided.
  • the fuel removal circuit for a diesel engine is characterized in that the pipe for removing the air in the first aspect is a transparent pipe.
  • an air extraction device wherein the orifice according to the first aspect has a diameter of 0.5 to 1.Oirnn.
  • An air bleeding device for a fuel supply circuit of a diesel engine is provided.
  • the air bleeding devices of the above embodiments have the following advantages. That is, unlike the prior art, it is not necessary to loosen the air bleeding plug, so that the fuel can be prevented from flowing out during the air bleeding operation. Therefore, it does not pollute the institution.
  • the use of a transparent air bleeding pipe allows the operator to visually check the air bleeding state.
  • the orifice for bleeding air is located higher than the fuel injection pump, so that air does not get mixed with fuel during start-up and is always stable. Start is started 0
  • FIG. 1 is a schematic explanatory view showing a fuel supply circuit system of a diesel engine provided with an air bleeding device of the present invention
  • FIG. 2 is a schematic longitudinal sectional view showing a main part of one specific example of the present invention.
  • reference numeral 1 denotes a pipe joint, and the lower end of the pipe joint 1 has an effect on the amount of oil supplied to the fuel injection pump 2.
  • the pipe joint 1 is fitted with an orifice 3 in which a small hole with a diameter of 0.5 to 1 mm is drilled so that the fuel filter 4 A hole is formed so as to extend in the longitudinal direction substantially at the center of the filter cap 4a attached to the upper part of the fuel filter 4 and communicate with the fuel outlet hole 5 of the fuel filter 4.
  • the air and fuel that has been screwed into the vented air vent hole 6 and exhausted from the orifice 3 are guided to the fuel tank 10 by the pipe 7. It is.
  • the reference numeral 11 is a fuel injection nozzle.
  • fuel fin 4 is fuel injected. It is installed at a higher position than firing pump 2. Such an arrangement prevents air from flowing into the gallery of the injection pump while the engine is stopped.
  • the fuel is supplied to the fuel tank 10 and then the manual fuel pump installed in the fuel injection pump 2 is used.
  • the pump 8 crank the engine in cell mode, or use the motorized wing provided as an optional part.
  • the low-pressure pump 9 to allow the air in the fuel supply circuit to flow through the pipe joint 1 that is screwed into the fuel fin 4. It is designed to be more powerful to discharge to tank 10. At the time of this air bleeding operation, the operator can easily and visually confirm the air discharge status by using a transparent pipe for the pipe of No. 7.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

An air vent apparatus for a fuel supply circuit for a diesel engine is provided, which aims at removing air in the fuel supply circuit without loosening an air bleed plug, by cranking or by operating a hand-operated priming motor, so as not to stain the engine or the like with the fuel leaking to the exterior together with air vent. The air vent apparatus includes a fuel filter (4) disposed higher than a fuel injecting pump (2), a filter cap (4a) provided at the upper portion of fuel filter (4) and having an air vent bore (6) communicating with a fuel outlet (5), a pipe joint (1) screwable with the air vent bore at the filter cap (4a) and having an orifice of a diameter so small as not to hinder a fuel injection quantity of the fuel injection pump, and an air vent pipe (7) connected at one end to the pipe joint and communicating at the other end with a fuel tank (10).

Description

明 細 書  Specification
燃料供給回路のエア抜 き 装置  Bleeding device for fuel supply circuit
発明 の技術分野  TECHNICAL FIELD OF THE INVENTION
こ の発明 は 内燃機関の燃料供給回路の エア抜 き 装置 に 関 し 、 特に燃料噴射ポ ン プよ り 高い位置 に燃料フ ィ ル タ を装備 し て い る デ ィ ー ゼル機関の燃料回路の エア抜 き 装 置 に関す る 。  The present invention relates to an air bleeding device for a fuel supply circuit of an internal combustion engine, and particularly to a fuel circuit of a diesel engine provided with a fuel filter at a position higher than a fuel injection pump. Regarding the air bleeding device.
発明の背景技術  BACKGROUND OF THE INVENTION
従来は、 燃料 フ ィ ル タ 上部の燃料入 口 と 連通す る 孔 に エ ア抜プラ グをネ ジ込み、 例え ば燃料切れの た め に燃料 供給回路中 に エ ア が混入 し た場合は、 該エア抜 き プラ グ をゆ る めて、 機関を ク ラ ン キ ン グす る か、 手動式プラ イ ミ ン グポ ン プを作動 さ せて、 エア抜 き プラ グよ り エア を 抜いて い る エ ア抜 き 法が多 い。 こ の方法で はエア と 共に 燃料が流れ出 て機関を汚 し た り 、 プラ イ ミ ン グに手間が 力、力、 る 。  Conventionally, an air extraction plug was screwed into a hole communicating with the fuel inlet at the top of the fuel filter.For example, if air was mixed in the fuel supply circuit due to running out of fuel, , Loosen the air bleeding plug and crank the engine, or operate the manual priming pump to bleed air from the air bleeding plug. There are many air removal methods. In this method, fuel flows out together with the air and contaminates the engine, and priming requires time, effort and power.
ま た燃料噴射ポ ン プのオ ー バフ ロ ー孔に ネ ジ込ま れて い る チ ユ ッ ク 弁の手前に エア抜 き 孔を穿孔 し て、 燃料供 給回路中の エア を燃料噴射ポ ン プよ り 高い位置に上げて か ら燃料 タ ン ク 等へ導い て、 エア抜 き を し て い る 方法 も 従来力、 ら用 い ら れてい る 。  Also, an air vent hole is drilled in front of the check valve that is screwed into the overflow hole of the fuel injection pump, and the air in the fuel supply circuit is released from the fuel injection pump. Conventionally, the method of bleeding air by raising it to a position higher than the pump and then guiding it to a fuel tank, etc., has also been used.
し 力、 し 、 エ ア抜 き プラ グを ゆ る め る こ と に よ っ て燃料 噴射回路中の エ ア を抜 く と い う 上記最初の従来技術方式 で は、 エ ア と 共 に燃料ま で も外部 に流出 し て し ま い、 機 関を汚す と い う 欠点があ り 、 一方、 燧料噴出 ポ ン プ に装 着 さ た エア抜 き 孔よ り エ ア を抜 く と 言 う 上記第二の従来 技術方式に お い て は、 機関停止中 に噴射ポ ン プの ギ ャ ラ リ 内 に エア が流入 し 、 始動を不安定にす る と い う 問題点 を解消す る た め に、 エア抜 き 用 のパイ プを一旦燃料噴射 ポ ン プよ り 高い位置 に上げてか ら 燃料夕 ン ク へエア を導 かな ければな ら な い。 こ の た め、 エア抜 き の効率は低下 す る と 共に、 配管が面倒に な る 。 In the first prior art method described above, in which the air in the fuel injection circuit is removed by loosening the air pressure plug, the air is removed together with the air. Even if it leaked out, There is a drawback of soiling the stake.On the other hand, in the above second prior art method, the air is removed from the air bleed hole mounted on the flue discharge pump. In order to eliminate the problem that air flows into the gallery of the injection pump while the engine is stopped, which causes unstable starting, a pipe for bleeding air must be removed once. It must be raised above the fuel injection pump before air can be directed to the fuel tank. This reduces the efficiency of air bleeding and complicates piping.
発明の概要  Summary of the Invention
本発明 は前記 し た事情に鑑みてな さ れた も のであ っ て そ の 目 的 は、 燃料噴射ポ ン プよ り 高い位置に装備 さ れた 燃料フ ィ ル 夕 の上部に小径のォ リ フ ィ ス を有す る パメ プ ジ ョ イ ン ト を取付けてエア抜 き 用パイ プを燃料 夕 ン ク へ 連通せ し め る こ と で、 エア抜 き プラ グをゆ る め る こ と な く 、 燃料供給回路中のエア を ク ラ ン キ ン グす る か、 ま た は手動式プラ イ ミ ン グポ ン プを作動 さ せ る こ と に よ っ て 抜 く こ と がで き る デ ィ ーゼル機関の燃料供給回路の エア 抜 き装置を提供す る こ と であ る 。  The present invention has been made in view of the circumstances described above, and its purpose is to provide a small diameter filter at the upper part of a fuel filter mounted higher than a fuel injection pump. Loosen the air bleeding plug by installing a damping joint with a relief and connecting the air bleeding pipe to the fuel tank The air in the fuel supply circuit can be removed either by clamping or by activating a manual priming pump. It is intended to provide an air bleeding device for a fuel supply circuit of a diesel engine.
上記 目 的を達成す る た め に、 本発明の第一態様に よ れ ば、 燃料噴射ポ ン プよ り 高い位置 に装備 さ れた燃料フ ィ ル タ と 、 該燃料フ ィ ル タ の上部に設け ら れ、 燃料出 口孔 に連通す る エ ア抜き 孔を有す る フ ィ ノレ タ キ ヤ ッ プ と 、 該 フ ィ ル タ キ ャ ッ プの エア抜 き 孔に ネ ジ込ま れ、 前記燃料 噴射ポ ン プの燃料噴射量に支障がな い ほ どの小径のォ リ フ ィ ス を有す る パイ プ ジ ョ イ ン ト と 、 そ し て該パイ プ ジ ョ イ ン 卜 に一端が連結 さ れ、 他端が燃料 タ ン ク に連通せ し め ら れた エア抜 き 用パイ プ と を含むデ ィ ー ゼル機関の 燃料供給回路のエア抜 き 装置が提供 さ れ る 。 In order to achieve the above object, according to a first aspect of the present invention, there is provided a fuel filter provided at a position higher than a fuel injection pump, and a fuel filter provided at a position higher than the fuel injection pump. A fin hole cap provided at the top and having an air vent hole communicating with the fuel outlet hole, and screwed into the air vent hole of the filter cap Small diameter that does not hinder the fuel injection amount of the fuel injection pump. A pipe joint having a face, and air having one end connected to the pipe joint and the other end communicating with the fuel tank; An air bleeding device for a fuel supply circuit of a diesel engine including a bleeding pipe is provided.
本発明 の第二態様に よ れば、 上記第一態様 にお け る ェ ァ抜 き 用パイ プが透明パイ プであ る こ と を特徴 と す る デ ィ ー ゼル機関の燃料供給回路の エ ア抜 き 装置が提供 さ れ 本発明 の第三態様に よ れば、 上記第一態様に お け る ォ リ フ ィ ス が 0 . 5 〜 1 . O irnnの 直径を有す る こ と を特徴 と す る デ ィ ー ゼル機関の燃料供給回路のエア抜 き 装置が 提供 さ れ る 。  According to a second aspect of the present invention, the fuel removal circuit for a diesel engine is characterized in that the pipe for removing the air in the first aspect is a transparent pipe. According to a third aspect of the present invention, there is provided an air extraction device, wherein the orifice according to the first aspect has a diameter of 0.5 to 1.Oirnn. An air bleeding device for a fuel supply circuit of a diesel engine is provided.
上記 し た各態様の エア抜 き 装置 は次の よ う な利点を有 す る 。 すな わ ち 、 従来技術の よ う にエア抜 き プラ グを ゆ る め る 必要がな いか ら エア抜 き 操作時に燃料が外部 に 流 出す る こ と を防止で き る 。 従 っ て、 機関を汚す こ と がな い。 ま た、 透明 のエア抜 き 用パ イ プの使用 に よ り 、 オペ レ ー タ がエア抜 き状態を 目 視に よ り 確認す る こ と がで き る 。 さ ら に、 エア抜き の た め のオ リ フ ィ ス が燃料噴射ポ ン プよ り 高い位置に あ る ので、 始動時に エ アが燃料に混 入す る こ と がな く 、 常に安定 し た始動を行な う こ と がで さ る 0 The air bleeding devices of the above embodiments have the following advantages. That is, unlike the prior art, it is not necessary to loosen the air bleeding plug, so that the fuel can be prevented from flowing out during the air bleeding operation. Therefore, it does not pollute the institution. In addition, the use of a transparent air bleeding pipe allows the operator to visually check the air bleeding state. In addition, the orifice for bleeding air is located higher than the fuel injection pump, so that air does not get mixed with fuel during start-up and is always stable. Start is started 0
前記な ら びに他の本発明 の 目 的、 態様、 そ し て利点は 本発明 の原理に合致す る 好適な具体例が実施例 と し て示 さ れてい る 以下の記述お よ び添附の 図面に関連 し て説明 さ れる こ と に よ り 、 当該技術の熟達者に と っ て明 ら か に な る であ ろ う 。 The above and other objects, embodiments, and advantages of the present invention will be described in detail with reference to preferred embodiments that conform to the principles of the present invention. It will be apparent to a person of skill in the art when described in conjunction with the following description as set forth and the accompanying drawings.
図面の簡単な説明  BRIEF DESCRIPTION OF THE FIGURES
第 1 図は本発明の エア抜 き 装置を備え た デ ィ 一ゼル機 関の燃料供給回路 シ ス テム を示す概略説明 図であ り 、 そ し て、  FIG. 1 is a schematic explanatory view showing a fuel supply circuit system of a diesel engine provided with an air bleeding device of the present invention, and
第 2 図 は本発明の一具体例の要部を示す概略縦断面図 であ る 。  FIG. 2 is a schematic longitudinal sectional view showing a main part of one specific example of the present invention.
好ま し い具体例の詳細な説明  Detailed description of preferred examples
以下、 添付の図面 に関連 し て本発明 の一具体例が説明 さ れ る 。  Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.
第 1 図乃至第 2 図において、 参照数字 1 はパイ プ ジ ョ イ ン ト で、 該パイ プ ジ ョ イ ン ト 1 の下端に は、 燃料噴射 ポ ン プ 2 への送油量に支障がな い よ う に 直径 0 . 5 〜 1 mmの小径孔が穿孔 さ れたオ リ フ ィ ス 3 が嵌入 さ れてい る こ のパ イ プ ジ ョ イ ン ト 1 は燃料フ ィ ル タ 4 の上部 に装着 さ れた フ ィ ル 夕 キ ヤ ッ プ 4 a の略中央部に縱方向 に伸延 し て、 燃料フ ィ ル タ 4 の燃料出 口孔 5 と連通す る よ う に 穿孔 さ れた エア抜 き 孔 6 に ネ ジ込ま れていて、 オ リ フ ィ ス 3 よ り 排出 さ れたエア と 燃料は、 燃料 タ ン ク 1 0 にパ イ ブ 7 で導かれ る よ う に な つ てい る 。 尚、 参照数字 1 1 は燃料噴射 ノ ズルであ る 。  In FIGS. 1 and 2, reference numeral 1 denotes a pipe joint, and the lower end of the pipe joint 1 has an effect on the amount of oil supplied to the fuel injection pump 2. The pipe joint 1 is fitted with an orifice 3 in which a small hole with a diameter of 0.5 to 1 mm is drilled so that the fuel filter 4 A hole is formed so as to extend in the longitudinal direction substantially at the center of the filter cap 4a attached to the upper part of the fuel filter 4 and communicate with the fuel outlet hole 5 of the fuel filter 4. The air and fuel that has been screwed into the vented air vent hole 6 and exhausted from the orifice 3 are guided to the fuel tank 10 by the pipe 7. It is. The reference numeral 11 is a fuel injection nozzle.
第 1 図力、 ら 明 ら かな よ う に、 燃料フ ィ ノレ タ 4 は燃料噴 射ポ ン プ 2 よ り 高い位置 に設け ら れて い る 。 こ の よ う な 配置 に よ っ て、 機関停止中 に噴射ポ ン プ の ギ ャ ラ リ 内 に エアが流入す る こ と が防止 さ れ る 。 As can be seen in FIG. 1, fuel fin 4 is fuel injected. It is installed at a higher position than firing pump 2. Such an arrangement prevents air from flowing into the gallery of the injection pump while the engine is stopped.
上記 し た本発明の具体例のエ ア抜 き 操作は次の よ う に 行な われ る 。  The above-described air extraction operation of the specific example of the present invention is performed as follows.
例え ば燃料切れで、 燃料供給回路中 に エ ア が混入 し た 場合 に は、 燃料を燃料タ ン ク 1 0 に補給後、 燃料噴射ポ ン プ 2 に装備 さ れてい る 手動式フ ィ 一 ド ポ ン プ 8 を作動 さ せ る か、 セ ルモ ー 夕 で機関を ク ラ ン キ ン グす る か、 又 はォ プ シ ョ ン部品 と し て装備 さ れてい る 電動式フ ィ ー ル ドポ ン プ 9 を作動 さ せて、 燃料供給回路中の エア を、 燃 料フ ィ ノレ タ 4 に ネ ジ込ま れて い る パ イ プ ジ ョ イ ン ト 1 を 経由 さ せて燃料 タ ン ク 1 0 に排出す る こ と 力くで き る よ う に な っ て い る 。 こ の エア抜 き 操作時に、 エア の排出状況 は 7 のパイ プに透明パイ プを使用すればオペ レ ー タ が 目 視に よ り 容易 に確認で き る よ う に な っ て い る 。  For example, if air is mixed in the fuel supply circuit due to running out of fuel, the fuel is supplied to the fuel tank 10 and then the manual fuel pump installed in the fuel injection pump 2 is used. Activate the pump 8, crank the engine in cell mode, or use the motorized wing provided as an optional part. Activate the low-pressure pump 9 to allow the air in the fuel supply circuit to flow through the pipe joint 1 that is screwed into the fuel fin 4. It is designed to be more powerful to discharge to tank 10. At the time of this air bleeding operation, the operator can easily and visually confirm the air discharge status by using a transparent pipe for the pipe of No. 7.

Claims

請 求 の 範 囲 The scope of the claims
1 . 燃料噴射ポ ン プよ り 高い位置 に装備 さ れた燃料フ ィ ル タ と 、 該燃料フ ィ ル タ の上部に設け ら れ、 燃料出 口孔 に連通す る エア抜き 孔を有す る フ ィ ル タ キ ャ ッ プ と 、 該 フ ィ ル タ キ ャ ッ プのエア抜 き 孔に ネ ジ込ま れ、 前記燃料 噴射ポ ン プ の燃料噴射量に支障がな い ほ どの小径のォ リ フ ィ ス を有す る ノ、'イ ブ ジ ョ イ ン ト と 、 そ し て該パイ プ ジ ョ イ ン 卜 に一端が連結 さ れ、 他端が燃料 タ ン ク に連通せ し め ら れた エア抜 き 用パイ プ と を含むデ ィ ー ゼル機関の 燃料供給回路の エア抜き 装置。  1. It has a fuel filter installed at a position higher than the fuel injection pump and an air vent hole provided at the top of the fuel filter and communicating with the fuel outlet hole. Filter cap and a small diameter screw that is screwed into the air vent hole of the filter cap and does not interfere with the fuel injection amount of the fuel injection pump. In this case, one end is connected to the event and the pipe joint, and the other end is connected to the fuel tank. An air bleeding device for the fuel supply circuit of a diesel engine, including a squeezed air bleeding pipe.
2 . 請求の範囲第 1 項に記載の エア抜 き 装置であ っ て、 前記エ ア抜 き 用パイ プが透明パイ プであ る こ と を特徴 と す る デ ィ ー ゼル機関の燃料供給回路の エア抜 き 装置。  2. A fuel supply system for a diesel engine according to claim 1, wherein the air bleeding pipe is a transparent pipe. Circuit air bleeder.
3 . 請求の範囲第 1 項に記載の エア抜 き 装置であ っ て、 前記オ リ フ ィ ス が 0 . 5 〜 1 . O BHBの 直径を有す る こ と を特徴 と す る デ ィ ー ゼル機関の燃料供給回路のエア抜 き 装置。 3. The air bleeding device according to claim 1, wherein the orifice has a diameter of 0.5 to 1.OBHB. -Air bleeding device for the fuel supply circuit of the diesel engine.
約 about
エア抜 き と共に燃料が外部へ流出 し て機関等を汚す こ と がな い よ う に、 エア抜 き ブラ グを ゆ る め る こ と な く 燃 料供給回路中の エア を ク ラ ン キ ン グす る か、 ま た は手動 式プラ イ ミ ン グポ ン プを作動 さ せ る こ と に よ つ て抜 く よ う に し た こ と を 目 的 と し た デ ィ 一ゼ ル機関の燃料供給回 路の エ ア抜 き 装置。 該ェァ抜 き 装置 は、 燃料噴射ポ ン プ In order to prevent the fuel from leaking to the outside when the air is bleed and contaminating the engine, etc., do not loosen the air bleeding plug and clean the air in the fuel supply circuit. Diesel engines intended to be pulled out or actuated by actuating a manual priming pump A device for removing air from the fuel supply circuit. The air ejection device is a fuel injection pump.
( 2 ) よ り 高い位置 に装備 さ れた燃料フ ィ ノレ 夕 （ 4 ) と 該燃料フ イ ノレ 夕 の上部 に設け ら れ、 燃料出 口孔 （ 5 ) に 連通す る エア抜 き 孔 （ 6 ) を有す る フ イ ノレ タ キ ャ ッ プ(2) The fuel nozzle (4) installed at a higher position and the air vent hole (4) provided at the upper part of the fuel nozzle and communicating with the fuel outlet hole (5). 6) Final capture with
( 4 a ) と、 該 フ ィ ノレ 夕 ャ ャ ッ プの ェ ァ抜 き 孔に ネ ジ込 ま れ、 前言己燃料噴射ボ ン プの燃料噴射量に支障がな い ほ どの小径の オ リ フ ィ ス （ 3 ) を有す る パィ プ ジ ョ イ ン ト ( 1 ) と 、 そ し て該パイ プ ジ ョ ^ ン 卜 に一端が連結 さ れ 他端が燃料タ ン ク （ 1 0 ) に連通せ し め ら れた エア抜 き 用パ イ プ ( 7 ) と を含む (4a) and a small-diameter orifice that is screwed into the hole for removing the final cap and that does not interfere with the fuel injection amount of the self-fuel injection pump. A pipe joint (1) having a face (3) and a fuel tank (10) having one end connected to the pipe joint and the other end connected to the pipe joint; Air bleeding pipe (7)
PCT/JP1989/000332 1989-03-29 1989-03-29 Air vent apparatus for a fuel supply circuit WO1990011444A1 (en)

Priority Applications (1)

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PCT/JP1989/000332 WO1990011444A1 (en) 1989-03-29 1989-03-29 Air vent apparatus for a fuel supply circuit

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Application Number Priority Date Filing Date Title
PCT/JP1989/000332 WO1990011444A1 (en) 1989-03-29 1989-03-29 Air vent apparatus for a fuel supply circuit

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WO1990011444A1 true WO1990011444A1 (en) 1990-10-04

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2327460A (en) * 1997-07-23 1999-01-27 Pall Corp Engine fuel system air vent including an oleophobic filter
EP1215390A1 (en) * 2000-12-14 2002-06-19 Filtrauto Fuel feed device for an internal combustion engine and fuel filter for such a device
WO2002061264A1 (en) * 2001-01-31 2002-08-08 Ing. Walter Hengst Gmbh & Co. Kg Liquid filter comprising air vents
WO2007007260A2 (en) * 2005-07-07 2007-01-18 Ford Otomotiv Sanayi Anonim Sirketi Head of a fuel filter
CN100379974C (en) * 2000-09-20 2008-04-09 三国株式会社 Fuel feeding device and fuel filter used for the device
DE102016200421A1 (en) 2015-01-20 2016-09-15 Bosch Ltd. Fuel filter in a fuel injection system

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Publication number Priority date Publication date Assignee Title
JPS4937692Y1 (en) * 1968-09-26 1974-10-16
JPS5820373U (en) * 1981-07-31 1983-02-08 日産デイ−ゼル工業株式会社 internal combustion engine fuel filter
JPS60175761A (en) * 1984-02-06 1985-09-09 ジエームス　エル．アドキンス Fuel system for internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4937692Y1 (en) * 1968-09-26 1974-10-16
JPS5820373U (en) * 1981-07-31 1983-02-08 日産デイ−ゼル工業株式会社 internal combustion engine fuel filter
JPS60175761A (en) * 1984-02-06 1985-09-09 ジエームス　エル．アドキンス Fuel system for internal combustion engine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2327460A (en) * 1997-07-23 1999-01-27 Pall Corp Engine fuel system air vent including an oleophobic filter
GB2327460B (en) * 1997-07-23 2000-10-25 Pall Corp Engine fuel systems
US6220228B1 (en) 1997-07-23 2001-04-24 Pall Corporation Engine fuel systems
CN100379974C (en) * 2000-09-20 2008-04-09 三国株式会社 Fuel feeding device and fuel filter used for the device
EP1215390A1 (en) * 2000-12-14 2002-06-19 Filtrauto Fuel feed device for an internal combustion engine and fuel filter for such a device
FR2818322A1 (en) * 2000-12-14 2002-06-21 Filtrauto FUEL SUPPLY DEVICE FOR AN INTERNAL COMBUSTION ENGINE AND FUEL FILTER FOR SUCH A DEVICE
WO2002061264A1 (en) * 2001-01-31 2002-08-08 Ing. Walter Hengst Gmbh & Co. Kg Liquid filter comprising air vents
US7299931B2 (en) 2001-01-31 2007-11-27 Hengst Gmbh & Co. Kg Liquid filter comprising air vents
WO2007007260A2 (en) * 2005-07-07 2007-01-18 Ford Otomotiv Sanayi Anonim Sirketi Head of a fuel filter
WO2007007260A3 (en) * 2005-07-07 2007-03-29 Ford Otomotiv Sanayi As Head of a fuel filter
DE102016200421A1 (en) 2015-01-20 2016-09-15 Bosch Ltd. Fuel filter in a fuel injection system

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