[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

RU2010107374A - FUEL INJECTOR WITH IMPROVED SEALING OF A SEALED SEAT, BALANCED BY PRESSURE OF THE CONTROL VALVE - Google Patents

FUEL INJECTOR WITH IMPROVED SEALING OF A SEALED SEAT, BALANCED BY PRESSURE OF THE CONTROL VALVE Download PDF

Info

Publication number
RU2010107374A
RU2010107374A RU2010107374/06A RU2010107374A RU2010107374A RU 2010107374 A RU2010107374 A RU 2010107374A RU 2010107374/06 A RU2010107374/06 A RU 2010107374/06A RU 2010107374 A RU2010107374 A RU 2010107374A RU 2010107374 A RU2010107374 A RU 2010107374A
Authority
RU
Russia
Prior art keywords
angle
valve
apex
seat
conical surface
Prior art date
Application number
RU2010107374/06A
Other languages
Russian (ru)
Other versions
RU2485343C2 (en
Inventor
Хольгер РАПП (DE)
Хольгер РАПП
Вольфганг ШТЁКЛАЙН (DE)
Вольфганг ШТЁКЛАЙН
Надя АЙЗЕНМЕНГЕР (DE)
Надя АЙЗЕНМЕНГЕР
Original Assignee
Роберт Бош ГмбХ (DE)
Роберт Бош Гмбх
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 Роберт Бош ГмбХ (DE), Роберт Бош Гмбх filed Critical Роберт Бош ГмбХ (DE)
Publication of RU2010107374A publication Critical patent/RU2010107374A/en
Application granted granted Critical
Publication of RU2485343C2 publication Critical patent/RU2485343C2/en

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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
    • F02M63/0021—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of mobile armatures
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
    • F02M63/008—Hollow valve members, e.g. members internally guided
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

1. Топливная форсунка для двигателей внутреннего сгорания, имеющая иглу (4), которая путем своего продольного перемещения управляет открытием по меньшей мере одного распылительного отверстия (5), подсоединенную к контуру (14) высокого давления управляющую полость (17), давление в которой по меньшей мере опосредованно действует на иглу (4), и управляющий клапан (23) с седлом (26), которое в радиальном направлении расположено между соединенной с управляющей полостью (17) клапанной полостью (22) высокого давления и клапанной полостью (24) низкого давления, и с подвижным клапанным элементом (25), который в радиальном направлении ограничивает клапанную полость (22) высокого давления и взаимодействует с седлом (26), отличающаяся тем, что клапанный элемент (25) управляющего клапана имеет радиально выступающий в клапанную полость (22) высокого давления кольцевой выступ (29), обращенная к седлу (26) выступающая поверхность (29а) которого образует взаимодействующую с седлом (26) уплотнительную поверхность. ! 2. Топливная форсунка по п.1, отличающаяся тем, что седло (26) образовано конической поверхностью, а уплотнительная поверхность клапанного элемента (25) управляющего клапана имеет уплотнительную кромку (30), образованную расположенной со стороны низкого давления конической поверхностью (30а), у которой равный половине угла при вершине ее конуса угол (αV1) больше угла (αK), равного половине угла при вершине конуса конической поверхности седла (26), и расположенной со стороны высокого давления конической поверхностью (30b), у которой равный половине угла при вершине ее конуса угол (αV2) меньше угла (αK), равного половине угла при вершине конуса конической по 1. A fuel nozzle for internal combustion engines, having a needle (4), which, through its longitudinal movement, controls the opening of at least one spray hole (5), a control cavity (17) connected to the high pressure circuit (14), the pressure of which at least indirectly acts on the needle (4), and the control valve (23) with a seat (26), which in the radial direction is located between the high-pressure valve cavity (22) connected to the control cavity (17) and the low pressure valve cavity (24) , and with a movable valve element (25), which in the radial direction limits the valve cavity (22) of high pressure and interacts with the seat (26), characterized in that the valve element (25) of the control valve has a radially protruding valve cavity (22) of high pressure, an annular protrusion (29) facing the saddle (26), the protruding surface (29a) which forms a sealing surface interacting with the saddle (26). ! 2. A fuel injector according to claim 1, characterized in that the seat (26) is formed by a conical surface, and the sealing surface of the valve element (25) of the control valve has a sealing lip (30) formed by a conical surface (30a) located on the low pressure side, in which the angle (αV1) equal to half the angle at the apex of its cone is greater than the angle (αK) equal to half the angle at the apex of the conical surface of the saddle (26) and the conical surface located on the high pressure side (30b), which has half the angle at the apex of its cone angle (αV2) smaller than the angle (αK), equal to half the apex angle of the cone of the conical

Claims (9)

1. Топливная форсунка для двигателей внутреннего сгорания, имеющая иглу (4), которая путем своего продольного перемещения управляет открытием по меньшей мере одного распылительного отверстия (5), подсоединенную к контуру (14) высокого давления управляющую полость (17), давление в которой по меньшей мере опосредованно действует на иглу (4), и управляющий клапан (23) с седлом (26), которое в радиальном направлении расположено между соединенной с управляющей полостью (17) клапанной полостью (22) высокого давления и клапанной полостью (24) низкого давления, и с подвижным клапанным элементом (25), который в радиальном направлении ограничивает клапанную полость (22) высокого давления и взаимодействует с седлом (26), отличающаяся тем, что клапанный элемент (25) управляющего клапана имеет радиально выступающий в клапанную полость (22) высокого давления кольцевой выступ (29), обращенная к седлу (26) выступающая поверхность (29а) которого образует взаимодействующую с седлом (26) уплотнительную поверхность.1. A fuel nozzle for internal combustion engines, having a needle (4), which, through its longitudinal movement, controls the opening of at least one spray hole (5), a control cavity (17) connected to the high pressure circuit (14), the pressure of which at least indirectly acts on the needle (4), and the control valve (23) with a seat (26), which in the radial direction is located between the high-pressure valve cavity (22) connected to the control cavity (17) and the low pressure valve cavity (24) , and with a movable valve element (25), which in the radial direction limits the valve cavity (22) of high pressure and interacts with the seat (26), characterized in that the valve element (25) of the control valve has a radially protruding valve cavity (22) of high pressure, an annular protrusion (29) facing the saddle (26), the protruding surface (29a) which forms a sealing surface interacting with the saddle (26). 2. Топливная форсунка по п.1, отличающаяся тем, что седло (26) образовано конической поверхностью, а уплотнительная поверхность клапанного элемента (25) управляющего клапана имеет уплотнительную кромку (30), образованную расположенной со стороны низкого давления конической поверхностью (30а), у которой равный половине угла при вершине ее конуса угол (αV1) больше угла (αK), равного половине угла при вершине конуса конической поверхности седла (26), и расположенной со стороны высокого давления конической поверхностью (30b), у которой равный половине угла при вершине ее конуса угол (αV2) меньше угла (αK), равного половине угла при вершине конуса конической поверхности седла (26).2. A fuel injector according to claim 1, characterized in that the seat (26) is formed by a conical surface, and the sealing surface of the valve element (25) of the control valve has a sealing lip (30) formed by a conical surface (30a) located on the low pressure side, in which the angle (α V1 ) equal to half the angle at the apex of its cone is greater than the angle (α K ) equal to half the angle at the apex of the cone of the saddle surface (26), and the conical surface located on the high pressure side (30b), which is equal to half at la at the apex of its cone angle (α V2) less than the angle (α K), equal to half the apex angle of the cone of the conical seat surface (26). 3. Топливная форсунка по п.1, отличающаяся тем, что уплотнительная поверхность клапанного элемента (25) управляющего клапана образована конической поверхностью, а седло (26) имеет посадочную кромку (31), образованную расположенной со стороны низкого давления конической поверхностью (26а), у которой равный половине угла при вершине ее конуса угол (αK1) меньше угла (αV), равного половине угла при вершине конуса конической поверхности клапанного элемента (25), и расположенной со стороны высокого давления конической поверхностью (26b), у которой равный половине угла при вершине ее конуса угол (αK2) больше угла (αV), равного половине угла при вершине конуса конической поверхности клапанного элемента (25).3. A fuel nozzle according to claim 1, characterized in that the sealing surface of the valve element (25) of the control valve is formed by a conical surface, and the seat (26) has a seating edge (31) formed by a conical surface located on the low pressure side (26a), in which the angle (α K1 ) equal to half the angle at the apex of its cone is less than the angle (α V ) equal to half the angle at the apex of the conical surface of the valve element (25) and the conical surface located on the high pressure side (26b), which has olovine angle at the apex of its cone angle (α K2) larger than the angle (α V), equal to half the apex angle of the cone of the conical surface of the valve member (25). 4. Топливная форсунка по п.1, отличающаяся тем, что седло (26) образовано конической поверхностью, а уплотнительная поверхность клапанного элемента (25) выполнена в виде кольцевого тора, или наоборот.4. The fuel nozzle according to claim 1, characterized in that the seat (26) is formed by a conical surface, and the sealing surface of the valve element (25) is made in the form of an annular torus, or vice versa. 5. Топливная форсунка по п.1, отличающаяся тем, что клапанный элемент (25) управляющего клапана выполнен в виде клапанной втулки.5. Fuel injector according to claim 1, characterized in that the valve element (25) of the control valve is made in the form of a valve sleeve. 6. Топливная форсунка по п.5, отличающаяся тем, что клапанная полость (22) высокого давления расположена внутри указанной клапанной втулки (25).6. A fuel injector according to claim 5, characterized in that the high pressure valve cavity (22) is located inside said valve sleeve (25). 7. Топливная форсунка по одному из пп.1-4, отличающаяся тем, что клапанный элемент (25) управляющего клапана выполнен в виде иглы.7. A fuel nozzle according to one of claims 1 to 4, characterized in that the valve element (25) of the control valve is made in the form of a needle. 8. Топливная форсунка по п.1, отличающаяся тем, что диаметр (dS) седла (26) и направляющий диаметр (dF) клапанного элемента (25) управляющего клапана равны друг другу.8. The fuel injector according to claim 1, characterized in that the diameter (d S ) of the seat (26) and the guide diameter (d F ) of the control valve element (25) are equal to each other. 9. Топливная форсунка по п.1, отличающаяся тем, что диаметр (dS) седла (26) меньше или больше направляющего диаметра (dF) клапанного элемента (25) управляющего клапана. 9. The fuel injector according to claim 1, characterized in that the diameter (d S ) of the seat (26) is less than or greater than the guide diameter (d F ) of the control valve element (25).
RU2010107374/06A 2007-07-30 2008-07-09 Fuel injector with better tightness of pressure-equalised control valve sealed seat RU2485343C2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200710035698 DE102007035698A1 (en) 2007-07-30 2007-07-30 Fuel injection valve with improved tightness at the sealing seat of a pressure-balanced control valve
DE102007035698.8 2007-07-30
PCT/EP2008/058879 WO2009016003A1 (en) 2007-07-30 2008-07-09 Fuel injection valve with improved tightness on the sealing seat of a pressure-compensated control valve

Publications (2)

Publication Number Publication Date
RU2010107374A true RU2010107374A (en) 2011-09-10
RU2485343C2 RU2485343C2 (en) 2013-06-20

Family

ID=39745269

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2010107374/06A RU2485343C2 (en) 2007-07-30 2008-07-09 Fuel injector with better tightness of pressure-equalised control valve sealed seat

Country Status (6)

Country Link
EP (1) EP2183476B1 (en)
JP (2) JP5193299B2 (en)
CN (1) CN101784785B (en)
DE (1) DE102007035698A1 (en)
RU (1) RU2485343C2 (en)
WO (1) WO2009016003A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007044356A1 (en) * 2007-09-17 2009-03-19 Robert Bosch Gmbh injector
DE102008005532A1 (en) * 2008-01-22 2009-07-23 Robert Bosch Gmbh Fuel injector whose control valve element has a support region
DE102008040956A1 (en) * 2008-08-04 2010-02-11 Robert Bosch Gmbh Fuel injector
DE102009029355A1 (en) * 2009-09-10 2011-03-24 Robert Bosch Gmbh injector
DE102009046563A1 (en) * 2009-11-10 2011-05-12 Robert Bosch Gmbh fuel injector
DE102010031670A1 (en) 2010-07-22 2012-01-26 Robert Bosch Gmbh control valve
DE102011078400A1 (en) * 2011-06-30 2013-01-03 Robert Bosch Gmbh fuel injector
JP2013174158A (en) * 2012-02-24 2013-09-05 Nabtesco Corp Solenoid valve
DE102013002232B4 (en) * 2013-02-11 2022-11-17 Man Energy Solutions Se Pistons of an internal combustion engine
RU2543636C2 (en) * 2013-03-11 2015-03-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Казанский государственный аграрный университет" (ФГБОУ ВПО Казанский ГАУ) Diesel injector
CN104265532B (en) * 2014-07-31 2016-08-24 中国第一汽车股份有限公司无锡油泵油嘴研究所 Control valve for fuel injector
DE102015203515A1 (en) * 2015-02-27 2016-09-01 Robert Bosch Gmbh Partial pressure compensated pressure control valve for a high-pressure accumulator
DE102018206763A1 (en) * 2018-05-02 2019-11-07 Robert Bosch Gmbh Valve device for a high-pressure pump
CN111539077B (en) * 2020-04-02 2023-04-18 苏州萨伯工业设计有限公司 Valve sleeve inner conical surface cone angle deviation precision design and grinding amount detection method
CN114522817A (en) * 2022-04-21 2022-05-24 山西海普瑞科技有限公司 Nozzle structure for preventing high-pressure water jet from being damaged

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0752062A1 (en) * 1994-03-24 1997-01-08 Siemens Aktiengesellschaft Injection valve for internal combustion engines
DE19624001A1 (en) * 1996-06-15 1997-12-18 Bosch Gmbh Robert Fuel injection device for internal combustion engines
DE19709794A1 (en) * 1997-03-10 1998-09-17 Bosch Gmbh Robert Valve for controlling liquids
DE29708369U1 (en) * 1997-05-09 1997-07-10 FEV Motorentechnik GmbH & Co. KG, 52078 Aachen Controllable injection valve for fuel injection on internal combustion engines
DE19741850A1 (en) * 1997-09-23 1999-03-25 Bosch Gmbh Robert Injection valve for fuel injection system for IC engine
US6364282B1 (en) * 1998-12-04 2002-04-02 Caterpillar Inc. Hydraulically actuated fuel injector with seated pin actuator
DE10001099A1 (en) * 2000-01-13 2001-08-02 Bosch Gmbh Robert Control valve for injector of fuel injection system for internal combustion engine; has regulator connected to pressure piston to separate control chamber from control valve and increase pressure
JP2002332933A (en) * 2001-05-10 2002-11-22 Toyota Motor Corp Fuel injection device
JP2003003933A (en) * 2001-06-20 2003-01-08 Toyota Central Res & Dev Lab Inc Fuel injection nozzle
DE10132249A1 (en) * 2001-07-04 2003-01-23 Bosch Gmbh Robert Fuel injector with force-balanced control valve
DE602004004254T2 (en) 2004-06-30 2007-07-12 C.R.F. S.C.P.A. Servo valve for controlling an injection valve of an internal combustion engine
DE102004061800A1 (en) * 2004-12-22 2006-07-06 Robert Bosch Gmbh Injector of a fuel injection system of an internal combustion engine
EP1707797B1 (en) * 2005-03-14 2007-08-22 C.R.F. Società Consortile per Azioni Adjustable metering servovalve for a fuel injector
EP1731752B1 (en) * 2005-05-27 2010-01-20 C.R.F. Società Consortile per Azioni Fuel-control servo valve, and fuel injector provided with such servo valve
DE102006057025A1 (en) * 2006-12-04 2008-06-05 Robert Bosch Gmbh Fuel injector for injecting fuel into combustion chamber of internal combustion engine, has pressure-compensating magnetic valve with valve element that opens or locks valve seat, where valve element or piece of valve has spherical surface
EP2025921B1 (en) * 2007-07-30 2009-10-14 C.R.F. Società Consortile per Azioni Fuel injector with balanced metering servovalve, for an internal combustion engine

Also Published As

Publication number Publication date
JP5523518B2 (en) 2014-06-18
CN101784785A (en) 2010-07-21
JP2012211597A (en) 2012-11-01
WO2009016003A1 (en) 2009-02-05
RU2485343C2 (en) 2013-06-20
JP5193299B2 (en) 2013-05-08
EP2183476B1 (en) 2013-03-27
DE102007035698A1 (en) 2009-02-05
CN101784785B (en) 2013-08-21
JP2010534790A (en) 2010-11-11
EP2183476A1 (en) 2010-05-12

Similar Documents

Publication Publication Date Title
RU2010107374A (en) FUEL INJECTOR WITH IMPROVED SEALING OF A SEALED SEAT, BALANCED BY PRESSURE OF THE CONTROL VALVE
EP3122468B1 (en) A fuel injector flexible for single and dual fuel injection
RU2010101640A (en) CONTROL VALVE FOR FUEL INJECTOR
CN202900503U (en) Novel aperture atomizer for diesel engine
US9903325B2 (en) Dual fuel fuel-injector
JP2003201938A (en) Fuel injection valve for internal combustion engine
JP2008261224A (en) Fuel injection control device of internal combustion engine
RU2010134914A (en) FUEL BURNER
ATE385542T1 (en) DEVICE FOR INJECTING FUEL INTO THE COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE
EP2707592B1 (en) Fuel injector
JP2006505745A (en) Fuel injection valve for internal combustion engine
JP2006514210A (en) Fuel injection valve for internal combustion engine
JP2008523318A (en) Fuel injection valve for internal combustion engine
CN103644060A (en) Control valve
US8689760B1 (en) Control valve
WO2021133525A1 (en) A fuel injector adaptive for single and dual fuel injection
CN103047061A (en) Controlled injection flat valve mechanism of electrical oil injector
CN105020074A (en) Diesel fuel and natural gas double-fuel integrated injector
DE50204045D1 (en) FUEL INJECTION VALVE
RU2012123964A (en) FUEL BURNER
EP2918818A1 (en) Fuel injector
ATE467047T1 (en) FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES
CN103047060A (en) Controlled injection valve of electrical oil injector
CN105756831A (en) Combined mechanical fuel oil injection and piezoelectric fuel gas injection mixed fuel injection device
US20230130775A1 (en) Fuel injector for internal combustion engines