JPS5870590U - Connection fitting for fuel pumping conduit between injection pump and injection valve - Google Patents

Connection fitting for fuel pumping conduit between injection pump and injection valve

Info

Publication number
JPS5870590U
JPS5870590U JP12412182U JP12412182U JPS5870590U JP S5870590 U JPS5870590 U JP S5870590U JP 12412182 U JP12412182 U JP 12412182U JP 12412182 U JP12412182 U JP 12412182U JP S5870590 U JPS5870590 U JP S5870590U
Authority
JP
Japan
Prior art keywords
pressure
nut
tube
cross
sleeve
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
Application number
JP12412182U
Other languages
Japanese (ja)
Inventor
フ−ベルト・ヒツツイガ−
ヘルム−ト・ヴアイス
Original Assignee
エム・ア−・エヌ・マシ−ネンフアブリ−ク・アウグスブルク−ニユルンベルク・アクチエンゲゼルシヤフト
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−・エヌ・マシ−ネンフアブリ−ク・アウグスブルク−ニユルンベルク・アクチエンゲゼルシヤフト filed Critical エム・ア−・エヌ・マシ−ネンフアブリ−ク・アウグスブルク−ニユルンベルク・アクチエンゲゼルシヤフト
Publication of JPS5870590U publication Critical patent/JPS5870590U/en
Pending legal-status Critical Current

Links

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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/002—Arrangement of leakage or drain conduits in or from injectors
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/004—Joints; Sealings
    • F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0206—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the collar not being integral with the pipe

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (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) [Summary] 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図は第１実施例の断面図、第２図は第２実施例の断
面図、第３図は第３実施例の断面図である。 １・・・燃料圧送導管、２・・・接続継ぎ手、３・・・
噴射ポンプ出口若しくは噴射弁入口、４・・・耐圧管、
５・・・コイルばね、６・・・漏えい通路、７・・・外
とう管、８・・・接続面、９・・・座面、１０・・・締
め付はナツト、１１・・・シールリング、１２・・・ね
じ山、１３・・・支持面、１４・・・圧力伝達部材、１
５・・・漏えい燃料通過部、１６・・・アンダカット部
、１７・・・部分範囲、１８・・・圧力伝達リング、１
９・・・軸方向スリット、２０・・・押しスリーブ、２
１・・・圧力伝達スリーブ、２２・・・内周面、２３・
・・外周面、２４・・・内周面、２５・・・隆起部、２
６・・・軸方向スリット、２７・・・押しスリーブ、２
８・・・圧力伝達リング、２９・・・内周面、３０・・
・押し面、３１・・・内周面、３２・・・軸方向スリッ
ト。FIG. 1 is a sectional view of the first embodiment, FIG. 2 is a sectional view of the second embodiment, and FIG. 3 is a sectional view of the third embodiment. 1...Fuel pressure feeding conduit, 2...Connection joint, 3...
Injection pump outlet or injection valve inlet, 4...pressure resistant pipe,
5... Coil spring, 6... Leak passage, 7... Outer pipe, 8... Connection surface, 9... Seat surface, 10... Tightening with nut, 11... Seal ring , 12... Thread, 13... Support surface, 14... Pressure transmission member, 1
5... Leak fuel passage part, 16... Undercut part, 17... Partial range, 18... Pressure transmission ring, 1
9... Axial slit, 20... Push sleeve, 2
DESCRIPTION OF SYMBOLS 1... Pressure transmission sleeve, 22... Inner peripheral surface, 23...
... Outer circumferential surface, 24... Inner circumferential surface, 25... Protrusion, 2
6... Axial slit, 27... Push sleeve, 2
8...Pressure transmission ring, 29...Inner peripheral surface, 30...
・Press surface, 31... Inner peripheral surface, 32... Axial slit.

Claims (1)

【実用新案登録請求の範囲】 １　噴射ポンプと噴射弁との間の、内側の耐圧管−とこ
の耐圧管を間隔をもって取り囲んでいて漏えい通路を形
成している外側の外とう管とより成っている燃料圧送導
管のための接続継ぎ手で−あって、前記耐圧管は外とう
管から突出している各端部に円すい状、球面状又は平面
状の接続面を有していて、この接続面を、噴射ポンプ出
口若しくは噴射弁入口に形成されている座面に締め付は
ナツトによって圧着されており、この締め付はナツトの
後部は前記外とう管をシール作用をもらで取り囲んでい
るとともに、締め付はナツトの前部はねじ山を介して噴
射ポンプ出口若しくは噴射弁入口に結合されており、更
に締め付はナツトはその内部に支持面を有しており、こ
の支持面には、リング状の圧力伝達部材の後方に向いた
係合面が支えられており、圧力伝達部材自体は前記耐圧
管に結合されていて、耐圧管の接続面を前記座面に圧着
する圧着力を締め付はナツトから耐圧管に伝達するとと
もに、少なくとも１つの漏えい燃料通過部を有している
形式のものにおいて、圧力伝達部材１４を耐圧管４に結
合するために、耐圧管４の外周面に半径方向のアンダカ
ット部１６が環状に形成されていて、このアンダカット
部１６は少なくとも部分的に円弧形の横断面形状を有し
ていて、この横断面範囲に締め付はナツト１０からの圧
着力の受圧面を形成しているとともに、圧力伝達部材１
４には円孤形横断面形状の部分範囲１７が形成されてい
てミこの部分範囲１７は少なくとも前記受圧面と係合し
ていて、これより締め付はナツト１０から耐圧管４に圧
着力が伝達され、更に、各漏えい燃料通過部１５は、圧
力伝達部材をその円周の１箇所で貫通している軸方向ス
リット１９・２６・３２によって形成されていることを
特徴とする噴射ポンプと噴射弁との間の燃料圧送導管の
ための接続継ぎ手。 ２　圧力伝達部材１４が、円形横断面を有しかつ軸方向
スリットにより中断されている圧力伝達リング１８とし
て構成されており、この圧力伝達リングは、その半径方
向で内側の横断面半部を耐圧管４のアンダカット部１６
の受圧面と係合させているとともに、その半径方向で外
側の横断面半部を締め付はナツト１０の支持面１３と係
合させている実用新案登録請求の範囲第１　　゛′項記
載の接続継ぎ手。 ３　圧力伝達部材１４が、外側の押しスリーブ２０と、
軸方向スリットにより中断されている圧力伝達スリーブ
２１とから成っており、該押しスリーブ２０は、耐圧管
の接続面を支える座面に向かって円すい状に拡大してい
る内周面２２を有しているとともに、該圧力伝達スリー
ブ２１は、押しスリーブ２０とほぼ同じ軸方向寸法を有
していて、押しスリーブ２０の円すい形の内周面２２と
くさび状に係合する円すい形の外周面２３と、耐圧管４
を遊びなしに取り囲、　　　む円筒形の内周面２４とを
有しており、更にこの円筒形の内周面２４から内方に向
かって半円形横断面のリング状の隆起部２５が突出して
いて、この隆起部２５が耐圧管４のアンダカット′部１
６に係合してＣする実用新案登録請求の範囲第１項記載
の接続継ぎ手。 ４　圧力伝達部材１４が、締め付はナツト１０の支持面
１３に支えられる外側の押しスリーブ２７と、軸方向ス
リットにより中断されている円形横断面の圧力伝達リン
グ２８とから成っており、該押しスリーブ２７は円筒形
の内周面２９を有していて、この内周面２９は円孤形横
断面の押し面３０を経て、耐圧管の接続面を支える座面
９に向かって円すい状に拡大している内周面゛３１に移
行しているとともに、該圧力伝達リング２８は、その半
径方向で内側の横断面半部を耐圧管４のアンダカット部
１６の受圧面に接合させ、かつその半径方向で外側の横
断面、半部を該押しスリーブ２７の押し面３０に係合さ
せている実用新案登録請求の範囲第１項記載の接続継ぎ
手。 ５　圧力伝達リング１８・２Ｂ若しくは圧力伝達スリー
ブ２１が複数のセグメントから成っている実用新案登録
請求の範囲第２項〜第４項のい　・ずれかに記載の接続
継ぎ手。[Claims for Utility Model Registration] 1. Between the injection pump and the injection valve, it consists of an inner pressure-resistant pipe and an outer shell pipe that surrounds this pressure-resistant pipe with a gap and forms a leakage passage. A connecting joint for a fuel pressure conduit, the pressure tube having a conical, spherical or planar connecting surface at each end projecting from the outer shell tube, the connecting surface being used for injection The tightening nut is crimped onto the seat formed at the pump outlet or injection valve inlet, and the rear part of the nut surrounds the outer sheath pipe with a sealing effect. The front part of the nut is connected to the injection pump outlet or the injection valve inlet via a thread, and the tightening nut has a support surface inside it, on which a ring-shaped pressure transmitting The rearwardly facing engagement surface of the member is supported, and the pressure transmitting member itself is coupled to the pressure tube, and the tightening force for crimping the connecting surface of the pressure tube to the seat surface is applied from the pressure nut to the pressure transmitting member. In the type having at least one leakage fuel passage, a radial undercut is provided on the outer circumferential surface of the pressure tube 4 in order to connect the pressure transmission member 14 to the pressure tube 4. 16 is formed in an annular shape, and this undercut portion 16 has at least a partially arcuate cross-sectional shape. In addition to forming the pressure transmitting member 1
4 is formed with a partial range 17 having a circular arc cross-sectional shape, and this partial range 17 engages with at least the pressure receiving surface, whereby the tightening force is applied from the nut 10 to the pressure tube 4. Further, each leakage fuel passing portion 15 is formed by an axial slit 19, 26, 32 passing through the pressure transmitting member at one point on its circumference. Connection fitting for fuel pumping conduit between valve. 2. The pressure transmission element 14 is designed as a pressure transmission ring 18 with a circular cross section and interrupted by axial slots, which pressure transmission ring has a radially inner half of its cross section that is pressure-tight. Undercut portion 16 of tube 4
The nut 10 is engaged with the pressure-receiving surface of the nut 10, and its radially outer cross-sectional half is engaged with the support surface 13 of the nut 10. connection joint. 3 the pressure transmission member 14 is connected to the outer push sleeve 20;
It consists of a pressure transmitting sleeve 21 interrupted by an axial slit, the push sleeve 20 having an inner circumferential surface 22 which widens conically towards the bearing surface supporting the connecting surface of the pressure tube. The pressure transmitting sleeve 21 also has a conical outer circumferential surface 23 that has approximately the same axial dimension as the push sleeve 20 and engages the conical inner circumferential surface 22 of the push sleeve 20 in a wedge-like manner. and pressure tube 4
It has a cylindrical inner circumferential surface 24 that surrounds the cylindrical inner circumferential surface without play, and furthermore, a ring-shaped raised portion 25 with a semicircular cross section projects inward from this cylindrical inner circumferential surface 24. This raised portion 25 forms the undercut portion 1 of the pressure tube 4.
6. The connection joint according to claim 1 of the utility model registration claim. 4. The pressure transmitting member 14 consists of an outer push sleeve 27, which bears against the support surface 13 of the nut 10, and a pressure transmitting ring 28 of circular cross section, which is interrupted by an axial slit, and which The sleeve 27 has a cylindrical inner circumferential surface 29, which is conically shaped toward the seat surface 9 that supports the connection surface of the pressure tube through a pressing surface 30 having a circular arc cross section. The pressure transmitting ring 28 joins its radially inner cross-sectional half to the pressure-receiving surface of the undercut 16 of the pressure tube 4 while transitioning to an enlarged inner peripheral surface 31 . 2. The connecting joint according to claim 1, wherein the radially outer cross-section, half of which engages with the push surface 30 of the push sleeve 27. 5. The connection joint according to any one of claims 2 to 4, wherein the pressure transmission rings 18, 2B or the pressure transmission sleeve 21 is composed of a plurality of segments.
JP12412182U 1981-08-22 1982-08-18 Connection fitting for fuel pumping conduit between injection pump and injection valve Pending JPS5870590U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19818124605 DE8124605U1 (en) 1981-08-22 1981-08-22 CONNECTION CONNECTION FOR A FUEL PRESSURE PIPE BETWEEN AN INJECTION PUMP AND ANOTHER INJECTOR
DE81246056 1981-08-22

Publications (1)

Publication Number Publication Date
JPS5870590U true JPS5870590U (en) 1983-05-13

Family

ID=6730566

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12412182U Pending JPS5870590U (en) 1981-08-22 1982-08-18 Connection fitting for fuel pumping conduit between injection pump and injection valve

Country Status (4)

Country Link
JP (1) JPS5870590U (en)
CH (1) CH657421A5 (en)
DE (1) DE8124605U1 (en)
FR (1) FR2511751B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61585U (en) * 1984-06-07 1986-01-06 臼井国際産業株式会社 Connection head structure of high pressure fuel injection pipe
US4708371A (en) * 1986-04-09 1987-11-24 Pratt & Whitney Canada Inc. Coupling for a fuel manifold
US5172939A (en) * 1989-10-14 1992-12-22 Usui Kokusai Sangyo Kaisha Ltd. Connection structure for branch pipe in high-pressure fuel rail
DE19916796A1 (en) * 1999-04-14 2000-10-19 Bosch Gmbh Robert Pressure line connection nut
US20080098989A1 (en) * 2006-10-31 2008-05-01 Caterpillar Inc. Fuel-injection system
EP1985841A1 (en) * 2007-04-27 2008-10-29 Continental Automotive GmbH Fluid inlet arrangement for an injection valve and injection valve

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1975269A (en) * 1933-05-24 1934-10-02 Corning Glass Works Glass pipe
FR1065308A (en) * 1952-06-26 1954-05-24 Advanced pipeline for multiple fluids
FR1276007A (en) * 1960-05-04 1961-11-17 A Braun & Fils Atel Fitting intended to connect coaxial pipes
DE7638072U1 (en) * 1976-12-04 1977-03-17 Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg Internal combustion engine with fuel injector
US4149568A (en) * 1977-12-07 1979-04-17 Caterpillar Tractor Co. Double walled fuel line
DE2938678A1 (en) * 1979-09-25 1981-04-09 Nova-Werke AG, Effretikon Diesel fuel oil pump high pressure pipe system - contain pipe casing ends, respectively secured in nipple nut by ball race, encompassing intermediary pipe end

Also Published As

Publication number Publication date
CH657421A5 (en) 1986-08-29
FR2511751B1 (en) 1985-12-27
FR2511751A1 (en) 1983-02-25
DE8124605U1 (en) 1981-12-10

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