JP5021710B2 - Fuel supply valve unit - Google Patents

Fuel supply valve unit Download PDF

Info

Publication number
JP5021710B2
JP5021710B2 JP2009253093A JP2009253093A JP5021710B2 JP 5021710 B2 JP5021710 B2 JP 5021710B2 JP 2009253093 A JP2009253093 A JP 2009253093A JP 2009253093 A JP2009253093 A JP 2009253093A JP 5021710 B2 JP5021710 B2 JP 5021710B2
Authority
JP
Japan
Prior art keywords
valve
constant pressure
pressure safety
steel
valve unit
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.)
Active
Application number
JP2009253093A
Other languages
Japanese (ja)
Other versions
JP2010242738A (en
Inventor
トーステン・グリツコ
クルト・コッシェル
ホルガー・シャール
クリストフ・シュロット
Original Assignee
エムアーエヌ・ディーゼル・エスエー
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 エムアーエヌ・ディーゼル・エスエー filed Critical エムアーエヌ・ディーゼル・エスエー
Publication of JP2010242738A publication Critical patent/JP2010242738A/en
Application granted granted Critical
Publication of JP5021710B2 publication Critical patent/JP5021710B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/46—Valves
    • 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
    • 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
    • F02M37/0023—Valves in the fuel supply and return system
    • F02M37/0029—Pressure regulator in the low pressure fuel system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/04—Check valves with guided rigid valve members shaped as balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0426—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with seat protecting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/005—Particular materials for seats or closure elements

Landscapes

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

Description

本発明は、請求項１もしくは請求項６もしくは請求項９のおいて書き部分に記載されたエンジンにおける燃料供給装置のバルブユニットに関する。   The present invention relates to a valve unit for a fuel supply device in an engine described in claim 1 or claim 6 or claim 9.

エンジン、特に重油で駆動される船舶用ディーゼルエンジンのシリンダは、燃料を自由に使用できないといけないので、燃料供給装置が用いられる。エンジンの燃料供給装置は、エンジンのシリンダに配設された噴射弁とも称されるインジェクタを備えており、燃料は、当該インジェクタを用いてシリンダ内に噴射され得る。エンジンの燃料供給装置は、エンジンのシリンダ内に噴射される燃料をインジェクタの方向に送るために、インジェクタに加えて、少なくとも１つの燃料ポンプを備えている。   A fuel supply device is used in a cylinder of a marine diesel engine driven by an engine, particularly heavy oil, because fuel must be freely used. The fuel supply device of the engine includes an injector that is also called an injection valve disposed in a cylinder of the engine, and the fuel can be injected into the cylinder by using the injector. The fuel supply device of the engine includes at least one fuel pump in addition to the injector in order to send the fuel injected into the cylinder of the engine in the direction of the injector.

燃料供給装置のインジェクタと燃料供給装置の燃料ポンプとの間には、図１に示された、先行技術から知られているバルブユニット１０が位置している。図１に示したバルブユニット１０は、すでに言及したように、燃料供給装置の燃料ポンプとインジェクタとの間に位置しており、鋼から成る本体１１を備えている。このとき、本体１１の第１の凹部１２内には、燃料送出弁１３が位置しており、本体１１の第２の凹部１４内には、定圧安全弁１５が位置している。本体１１の第１の連結領域１６には、図示されていない燃料ポンプが連結可能であり、本体１１の第２の連結領域１７には、やはり図示されていない燃料噴射弁もしくはインジェクタが連結可能である。   Between the injector of the fuel supply device and the fuel pump of the fuel supply device, a valve unit 10 known from the prior art shown in FIG. 1 is located. As already mentioned, the valve unit 10 shown in FIG. 1 is located between the fuel pump and the injector of the fuel supply device, and includes a main body 11 made of steel. At this time, the fuel delivery valve 13 is located in the first recess 12 of the main body 11, and the constant pressure safety valve 15 is located in the second recess 14 of the main body 11. A fuel pump (not shown) can be connected to the first connection region 16 of the main body 11, and a fuel injection valve or an injector (not shown) can also be connected to the second connection region 17 of the main body 11. is there.

定圧安全弁１５は、バルブユニット１０の、燃料噴射弁もしくはインジェクタに接続される燃料ライン１８における燃料の最低圧力を維持するために用いられる。   The constant pressure safety valve 15 is used to maintain the minimum pressure of the fuel in the fuel line 18 connected to the fuel injection valve or injector of the valve unit 10.

図１に示した先行技術によれば、バルブユニット１０の定圧安全弁１５は、ばね要素１９が衝突する作動要素２０を有しており、作動要素２０は、定圧安全弁１５のボールバルブ２１を、バルブユニット１０の本体１１によって供給されるバルブシート２２に対して押圧する。   According to the prior art shown in FIG. 1, the constant pressure safety valve 15 of the valve unit 10 has an actuating element 20 against which a spring element 19 collides. Press against the valve seat 22 supplied by the main body 11 of the unit 10.

図１に示された、先行技術から知られたバルブユニット１０の場合、本体１１は鋼で形成されている。定圧安全弁１５のボールバルブ２１もやはり、鋼で形成されている。   In the case of the valve unit 10 known from the prior art shown in FIG. 1, the body 11 is made of steel. The ball valve 21 of the constant pressure safety valve 15 is also made of steel.

上記の点に鑑み、本発明の課題は、エンジンの燃料供給装置における、より磨耗が少なく新しいバルブユニットを提供することにある。   In view of the above points, an object of the present invention is to provide a new valve unit with less wear in an engine fuel supply device.

本発明の第１の態様によれば、本課題は、請求項１に記載のバルブユニットによって解決される。当該態様では、定圧安全弁のバルブシートは、鋼による単独のカートリッジから構成されている。このとき、単独のカートリッジにおける鋼の焼戻し温度は、本体の鋼の焼戻し温度よりも高い。   According to a first aspect of the present invention, this problem is solved by a valve unit according to claim 1. In this aspect, the valve seat of the constant pressure safety valve is composed of a single cartridge made of steel. At this time, the tempering temperature of the steel in the single cartridge is higher than the tempering temperature of the steel of the main body.

本発明の第２の態様によれば、本課題は、請求項６に記載のバルブユニットによって解決される。当該態様では、バルブシートの粗さＲａは、０．８よりも小さい。   According to a second aspect of the present invention, this problem is solved by a valve unit according to claim 6. In the aspect, the roughness Ra of the valve seat is smaller than 0.8.

本発明の第３の態様によれば、本課題は、請求項９に記載のバルブユニットによって解決される。当該態様では、ボールバルブは、鋼よりも強度が大きく、鋼よりも比重の小さい材料から形成されている。   According to a third aspect of the present invention, this problem is solved by a valve unit according to claim 9. In this aspect, the ball valve is made of a material having a strength higher than that of steel and a specific gravity lower than that of steel.

本発明の全部で３つの態様を、単独で、２つの態様を任意に組み合わせて、又は、３つ全ての態様を組み合わせて、バルブユニットに適用することによって、当該バルブユニットの磨耗を先行技術に比して明らかに減少させることができる。これによって、バルブユニットの寿命を延長し、それに伴い、燃料供給装置の保全間隔を延長することが可能となる。さらに、先行技術に基づいて構成されたバルブユニットを、修理の際に、本発明に係るバルブユニットに改造することができる。   By applying all three aspects of the present invention alone, any combination of the two aspects, or any combination of the three aspects to the valve unit, wear of the valve unit can be reduced to the prior art. It can be clearly reduced. As a result, the service life of the valve unit can be extended, and accordingly, the maintenance interval of the fuel supply device can be extended. Furthermore, a valve unit configured based on the prior art can be modified to the valve unit according to the present invention at the time of repair.

本発明のさらなる構成は、従属請求項及び以下の明細書部分から明らかとなる。本発明の実施例については、以下に図を用いて詳細に説明するが、本発明はこれに限定されない。   Further configurations of the invention will become apparent from the dependent claims and the following specification part. Examples of the present invention will be described in detail below with reference to the drawings, but the present invention is not limited to these.

エンジンの燃料供給装置における、先行技術から知られたバルブユニットを示す図である。It is a figure which shows the valve unit known from the prior art in the fuel supply apparatus of an engine. エンジンの燃料供給装置における、本発明に係るバルブユニットを示す図である。It is a figure which shows the valve unit which concerns on this invention in the fuel supply apparatus of an engine.

図２は、エンジン、特に重油で駆動される船舶用ディーゼルエンジンの燃料供給装置における、本発明に係るバルブユニット２３を示している。不必要な重複を避けるために、図２の本発明に係るバルブユニット２３について、図１の先行技術から知られたバルブユニット１０と同じアセンブリには同じ参照符号を用いることとする。   FIG. 2 shows a valve unit 23 according to the invention in a fuel supply device for an engine, in particular a marine diesel engine driven by heavy oil. In order to avoid unnecessary duplication, for the valve unit 23 according to the invention of FIG. 2, the same reference numerals are used for the same assembly as the valve unit 10 known from the prior art of FIG.

本発明の第１の態様によると、定圧安全弁１５のボールバルブ２１のためのバルブシート２４は、本体１１と同様に鋼で形成された単独のカートリッジ２５によって供給される。単独のカートリッジ２５における鋼のいわゆる焼戻し温度は、本体１１の鋼の焼戻し温度よりも高い。焼戻し温度とは、熱処理の温度であり、当該熱処理において、本体１１の鋼材料と単独のカートリッジ２５の鋼材料とは、所望のカートリッジのためのあらゆる特性に対して集中的に影響を与えるために、集中的に加熱される。鋼材料の焼戻しに関する詳細は、当業者によく知られているので、ここでは詳細な説明は行わない。   According to the first aspect of the present invention, the valve seat 24 for the ball valve 21 of the constant pressure safety valve 15 is supplied by a single cartridge 25 formed of steel as with the main body 11. The so-called tempering temperature of the steel in the single cartridge 25 is higher than the tempering temperature of the steel of the main body 11. The tempering temperature is the temperature of the heat treatment, in which the steel material of the main body 11 and the steel material of the single cartridge 25 have a intensive influence on all properties for the desired cartridge. Heated intensively. Details regarding the tempering of the steel material are well known to those skilled in the art and will not be described in detail here.

単独のカートリッジ２５における鋼の焼戻し温度は、定圧安全弁１５の領域における燃料の最高動作温度よりも高い。カートリッジ２５の鋼の焼戻し温度は、定圧安全弁１５の領域における燃料の最高動作温度よりも、好適には少なくとも２００℃、特に好適には少なくとも２５０℃高い。本体１１の鋼の焼戻し温度は、定圧安全弁１５の領域における燃料の最高動作温度にほぼ等しい。   The tempering temperature of the steel in the single cartridge 25 is higher than the maximum operating temperature of the fuel in the region of the constant pressure safety valve 15. The tempering temperature of the steel of the cartridge 25 is preferably at least 200 ° C., particularly preferably at least 250 ° C., higher than the maximum operating temperature of the fuel in the region of the constant pressure safety valve 15. The tempering temperature of the steel of the main body 11 is approximately equal to the maximum operating temperature of the fuel in the region of the constant pressure safety valve 15.

好ましくは本発明の第１の態様と組み合わせて適用される第２の態様によると、本発明の第１の態様では単独のカートリッジ２５によって供給されるボールバルブ２１のためのバルブシート２４の粗さＲａは、０．８μｍよりも小さい。定圧安全弁１５のボールバルブ２１のためのバルブシート２４の粗さＲａが、０．２μｍ〜０．６μｍ、特に０．３μｍ〜０．５μｍである実施形態が好ましい。ボールバルブ２１のためのバルブシート２４の粗さＲａは、ほぼ０．４μｍであることが好ましい。   According to a second aspect, preferably applied in combination with the first aspect of the invention, the roughness of the valve seat 24 for the ball valve 21 supplied by a single cartridge 25 in the first aspect of the invention. Ra is smaller than 0.8 μm. An embodiment in which the roughness Ra of the valve seat 24 for the ball valve 21 of the constant pressure safety valve 15 is 0.2 μm to 0.6 μm, particularly 0.3 μm to 0.5 μm is preferred. The roughness Ra of the valve seat 24 for the ball valve 21 is preferably approximately 0.4 μm.

本発明の第１の態様及び／又は第２の態様と組み合わせて適用される第３の態様によると、定圧安全弁１５のボールバルブ２１は、特別な材料、すなわち鋼よりも強度が大きいが、比重は小さい材料から形成されている。ボールバルブ２１がセラミックス材料から形成されている変型例が、特に好ましい。   According to a third aspect applied in combination with the first and / or second aspect of the present invention, the ball valve 21 of the constant pressure safety valve 15 is stronger than a special material, i.e. steel, but has a specific gravity. Is made of a small material. A modification in which the ball valve 21 is formed of a ceramic material is particularly preferable.

本発明の３つの態様全ては、共に１つのバルブユニットに適用されるような発明の変型例が、特に好ましい。これによって、定圧安全弁１５の領域における当該バルブユニットの磨耗を、先行技術に対して減少させることができる。   All three aspects of the present invention are particularly preferred as variations of the invention that are both applied to a single valve unit. Thereby, the wear of the valve unit in the region of the constant pressure safety valve 15 can be reduced compared to the prior art.

本発明は、新しい部材への適用だけではなく、既存の部材の改造にも適している。したがって、すでに実際に使用されている図１のバルブユニット１０を、図２の本発明に係るバルブユニット２３に改造することが可能である。そのためには単独のカートリッジ２５が作動要素２０、ボールバルブ２１、及び定圧安全弁１５のばね要素１９と共に凹部１４に受容されるように、定圧安全弁１５の受容に用いられる凹部１４をただ拡大すれば良いだけである。   The present invention is suitable not only for application to new members but also for modification of existing members. Therefore, the valve unit 10 of FIG. 1 which is already actually used can be modified to the valve unit 23 according to the present invention of FIG. For this purpose, the recess 14 used to receive the constant pressure safety valve 15 is simply enlarged so that a single cartridge 25 is received in the recess 14 together with the actuating element 20, the ball valve 21 and the spring element 19 of the constant pressure safety valve 15. Only.

本発明のさらなる好適な構成では、本体１１は、燃料噴射弁もしくはインジェクタのための第２の連結領域において、０．０１ｍｍ〜０．０５ｍｍの範囲で面が収縮し、それによって、本体１１と、燃料噴射弁もしくはインジェクタとの間の高圧領域において、より確実に密封されるようになる。   In a further preferred configuration of the invention, the body 11 is contracted in the range of 0.01 mm to 0.05 mm in the second connection region for the fuel injector or injector, whereby the body 11 and In the high pressure region between the fuel injection valve and the injector, the sealing is more reliably performed.

１０ バルブユニット、１１ 本体、１２，１４ 凹部、１３ 燃料送出弁、１５ 定圧安全弁、１６，１７ 連結領域、１８ 燃料ライン、１９ ばね要素、２０ 作動要素、２１ ボールバルブ、２３ バルブユニット、
２４ バルブシート、
２５ カートリッジ 10 valve unit, 11 body, 12, 14 recess, 13 fuel delivery valve, 15 constant pressure safety valve, 16, 17 connection area, 18 fuel line, 19 spring element, 20 actuating element, 21 ball valve, 23 valve unit,
24 Valve seat,
25 cartridges

Claims (8)

凹部内で定圧安全弁を受容する鋼製の本体を有するエンジンの燃料供給装置のバルブユニットであって、
前記定圧安全弁は、ばね要素が衝突する作動要素を有しており、前記作動要素は、前記定圧安全弁のボールバルブを、前記定圧安全弁のバルブシートに対して押圧するバルブユニットにおいて、
前記定圧安全弁の前記バルブシート（２４）は、鋼製の単独のカートリッジ（２５）から構成されており、
前記単独のカートリッジ（２５）における鋼の焼戻し温度は、前記本体（１１）の鋼の焼戻し温度よりも高く、
前記単独のカートリッジ（２５）の鋼の焼戻し温度が、前記定圧安全弁の領域における燃料の最高動作温度よりも、少なくとも２００℃、好ましくは少なくとも２５０℃高く、かつ
前記本体（１１）の鋼の焼戻し温度が、前記定圧安全弁の領域における燃料の最高作動温度にほぼ等しいことを特徴とするバルブユニット。 A valve unit for an engine fuel supply device having a steel body for receiving a constant pressure safety valve in a recess,
The constant pressure safety valve has an operating element with which a spring element collides, and the operating element presses a ball valve of the constant pressure safety valve against a valve seat of the constant pressure safety valve,
The valve seat (24) of the constant pressure safety valve is composed of a single cartridge (25) made of steel,
The tempering temperature of the steel in the single cartridge (25) is higher than the tempering temperature of the steel of the main body (11),
The tempering temperature of the steel of the single cartridge (25) is at least 200 ° C, preferably at least 250 ° C higher than the maximum operating temperature of the fuel in the region of the constant pressure relief valve;
A valve unit, characterized in that the tempering temperature of the steel of the body (11) is approximately equal to the maximum operating temperature of the fuel in the region of the constant pressure safety valve. 凹部内で定圧安全弁を受容する鋼製の本体を有するエンジンの燃料供給装置のバルブユニットであって、
前記定圧安全弁は、ばね要素が衝突する作動要素を有しており、
前記作動要素は、前記定圧安全弁のボールバルブを前記定圧安全弁のバルブシートに対して押圧するバルブユニットにおいて、
前記バルブシート（２４）の粗さＲａは、０．８よりも小さいことを特徴とする請求項１に記載のバルブユニット。 A valve unit for an engine fuel supply device having a steel body for receiving a constant pressure safety valve in a recess,
The constant pressure safety valve has an operating element with which a spring element collides,
In the valve unit for pressing the ball valve of the constant pressure safety valve against the valve seat of the constant pressure safety valve, the operating element is
The valve unit according to claim 1 , characterized in that the roughness Ra of the valve seat (24) is less than 0.8. 前記バルブシート（２４）の粗さＲａは、０．２〜０．６、特に０．３〜０．５であることを特徴とする請求項２に記載のバルブユニット。 3. The valve unit according to claim 2 , wherein the roughness Ra of the valve seat (24) is 0.2 to 0.6, in particular 0.3 to 0.5. 凹部内で定圧安全弁を受容する鋼製の本体を有するエンジンの燃料供給装置のバルブユニットであって、
前記定圧安全弁は、ばね要素が衝突する作動要素を有しており、
前記作動要素は、前記定圧安全弁のボールバルブを前記定圧安全弁のバルブシートに対して押圧するバルブユニットにおいて、
前記ボールバルブ（２１）は、鋼よりも強度が大きく、鋼よりも比重が小さい材料で形成されていることを特徴とする請求項１〜３のいずれか一項に記載のバルブユニット。 A valve unit for an engine fuel supply device having a steel body for receiving a constant pressure safety valve in a recess,
The constant pressure safety valve has an operating element with which a spring element collides,
In the valve unit for pressing the ball valve of the constant pressure safety valve against the valve seat of the constant pressure safety valve, the operating element is
The valve unit according to any one of claims 1 to 3, wherein the ball valve (21) is made of a material having a strength higher than that of steel and a specific gravity smaller than that of steel. 前記ボールバルブ（２１）が、セラミックス材料から形成されていることを特徴とする請求項１〜４のいずれか一項に記載のバルブユニット。 The valve unit according to any one of claims 1 to 4, wherein the ball valve (21) is made of a ceramic material. 前記カートリッジ（２５）が、前記作動要素（２０）、前記ボールバルブ（２１）、及び前記ばね要素（１９）と共に、前記本体（１１）の前記凹部（１４）内に位置していることを特徴とする請求項１から５のいずれか一項に記載のバルブユニット。 The cartridge (25) is located in the recess (14) of the body (11) together with the actuating element (20), the ball valve (21) and the spring element (19). The valve unit according to any one of claims 1 to 5 . 前記本体（１１）が、さらに個別の凹部（１２）において、燃料送出弁（１３）を受容することを特徴とする請求項１から６のいずれか一項に記載のバルブユニット。 Said body (11) further in a separate recess (12), the valve unit according to any one of claims 1 to 6, characterized in that receiving fuel delivery valve (13). 前記本体（１１）は、燃料ポンプのために第１の連結領域（１６）を有し、燃料噴射弁もしくはインジェクタのために第２の連結領域（１７）を有することを特徴とする請求項１から７のいずれか一項に記載のバルブユニット。 The said body (11) has a first connection area (16) for a fuel pump and a second connection area (17) for a fuel injection valve or injector. The valve unit according to any one of 1 to 7 .
JP2009253093A 2009-04-02 2009-11-04 Fuel supply valve unit Active JP5021710B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009015528.7A DE102009015528B4 (en) 2009-04-02 2009-04-02 Valve unit of a fuel supply system
DE102009015528.7 2009-04-02

Publications (2)

Publication Number Publication Date
JP2010242738A JP2010242738A (en) 2010-10-28
JP5021710B2 true JP5021710B2 (en) 2012-09-12

Family

ID=41620909

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009253093A Active JP5021710B2 (en) 2009-04-02 2009-11-04 Fuel supply valve unit

Country Status (5)

Country Link
JP (1) JP5021710B2 (en)
KR (1) KR101538525B1 (en)
CN (1) CN101900061B (en)
DE (1) DE102009015528B4 (en)
FI (1) FI124822B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016103945A1 (en) * 2014-12-25 2016-06-30 日立オートモティブシステムズ株式会社 Valve mechanism and high-pressure fuel supply pump with same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2569793B (en) 2017-12-21 2020-04-22 Delphi Automotive Systems Lux High pressure fuel pump
GB2597972A (en) * 2020-08-13 2022-02-16 Edwards Ltd Non-return check valve and check valve apparatus for vacuum system

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596507A (en) * 1968-08-20 1971-08-03 Toyoda Chuo Kenkyusho Kk Apparatus for detecting the injection timing of an internal combustion engine
DE7635687U1 (en) 1976-11-12 1978-05-03 Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg FUEL INJECTION PUMP FOR COMBUSTION ENGINES
JPS59177772U (en) * 1983-05-17 1984-11-28 株式会社ボッシュオートモーティブ　システム Fuel injection pump delivery valve
DE3904518A1 (en) 1989-02-15 1990-08-23 Bosch Gmbh Robert BALANCE PRESSURE RELIEF VALVE FOR FUEL INJECTION SYSTEMS
JP3719468B2 (en) * 1996-09-02 2005-11-24 株式会社デンソー Accumulated fuel injection system
JPH11351089A (en) * 1998-06-15 1999-12-21 Unisia Jecs Corp Fuel supply system
DE19947195A1 (en) * 1999-10-01 2001-04-05 Bosch Gmbh Robert Fuel injection valve for diesel engine has spring force of closure spring acting on valve element adjusted via setting bolt for determining opening pressure of injection valve
JP4193346B2 (en) * 2000-09-18 2008-12-10 株式会社日立製作所 Internal combustion engine
DE10060811A1 (en) * 2000-12-07 2002-06-13 Bosch Gmbh Robert Fuel injection system for internal combustion engines
JP2002250258A (en) * 2001-02-22 2002-09-06 Denso Corp Constant residual pressure valve for fuel injection device
DE10353314B4 (en) 2003-11-10 2014-10-30 Robert Bosch Gmbh Check valve for a high-pressure fuel pump
DE10359169A1 (en) * 2003-12-17 2005-07-21 Robert Bosch Gmbh Fuel injection device for internal combustion engine, has control valve that closes during small stroke of piston to keep valve component in closed position, and control space separated from operating space during big stroke of piston
JP2006242019A (en) 2005-03-01 2006-09-14 Jtekt Corp Check valve for fuel pump
JP4453028B2 (en) * 2005-03-30 2010-04-21 株式会社デンソー High pressure fuel pump
JP4442567B2 (en) * 2006-01-20 2010-03-31 株式会社デンソー Common rail

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016103945A1 (en) * 2014-12-25 2016-06-30 日立オートモティブシステムズ株式会社 Valve mechanism and high-pressure fuel supply pump with same

Also Published As

Publication number Publication date
FI124822B (en) 2015-02-13
DE102009015528A1 (en) 2010-10-07
CN101900061A (en) 2010-12-01
CN101900061B (en) 2013-01-02
JP2010242738A (en) 2010-10-28
KR20100110254A (en) 2010-10-12
FI20105071A (en) 2010-10-03
DE102009015528B4 (en) 2021-08-12
FI20105071A0 (en) 2010-01-27
KR101538525B1 (en) 2015-07-21

Similar Documents

Publication Publication Date Title
KR101230323B1 (en) Fuel supply system for heavy oil common rail injection systems
JP5021710B2 (en) Fuel supply valve unit
WO2007058103A1 (en) Fuel injection valve
US20090205614A1 (en) Device for the injection of fuel into the combusition chamber of an internal combustion engine
US20150136099A1 (en) Valve for a fuel system for a combustion engine and method for controlling a fuel system for a combustion engine
JP6646918B2 (en) Flow restrictor for injector
JPH11311164A (en) Scuffing resistant and abrasion resistant plunger, zirconia ceramic plunger, unit fuel injector, accumulator assembly, and electronic fuel pump
JP5530786B2 (en) Pressure holding valve inspection device and inspection method
FI124257B (en) Temperature control of switching valve unit in injection systems
US7775192B2 (en) Radial piston pump for fuel injection system having improved high-pressure resistance
WO2008012295A3 (en) Radial piston pump unit for supplying fuel at high pressure in fuel injection systems
KR101935240B1 (en) Flushing valve for common rail heavy oil injection systems
JP2017512938A (en) Fuel high pressure pump
JP4971425B2 (en) Radial piston pump for high-pressure fuel supply in internal combustion engines
US20160273532A1 (en) A component which conducts a high-pressure medium
US10113523B2 (en) Injector
JP2017180296A (en) Internal combustion engine
ATE546635T1 (en) INJECTOR FOR A FUEL INJECTION SYSTEM
CN100419248C (en) Piston type internal combustion engine
US7063278B2 (en) Fuel injection valve
US20060071099A1 (en) Fuel injector with VOP loss resistant valve spring for emissions-compliant engine applications
US20130232990A1 (en) Apparatus for Releasing a Flow Cross Section of a Gas Line
EP2055927B1 (en) Actuator arrangement and injection valve
ATE449250T1 (en) INJECTOR WITH ADDITIONAL SERVO VALVE
KR20180063894A (en) Piezo injectors for fuel delivery

Legal Events

Date Code Title Description
A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20111004

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20111228

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20120106

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20120206

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20120209

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20120305

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20120308

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120404

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120515

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120614

R150 Certificate of patent or registration of utility model

Ref document number: 5021710

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150622

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250