EP1576281A1 - Schieberventil - Google Patents
SchieberventilInfo
- Publication number
- EP1576281A1 EP1576281A1 EP03776910A EP03776910A EP1576281A1 EP 1576281 A1 EP1576281 A1 EP 1576281A1 EP 03776910 A EP03776910 A EP 03776910A EP 03776910 A EP03776910 A EP 03776910A EP 1576281 A1 EP1576281 A1 EP 1576281A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control
- valve according
- sliding sleeve
- control cylinder
- slide valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 210000002105 tongue Anatomy 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/042—The valves being provided with fuel passages
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
- F02M51/066—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0685—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature and the valve being allowed to move relatively to each other or not being attached to each other
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
Definitions
- the invention relates to a slide valve according to the preamble of claim 1.
- a reciprocating internal combustion engine with a fuel injection nozzle is known.
- This has a hollow valve needle with a valve needle head pointing towards a combustion chamber of the internal combustion engine.
- Nozzle bores are provided between the cavity of the valve needle and its outer circumference, through which the fuel is injected into the combustion chamber when the injection valve is open.
- the injection valve opens in that the valve needle is displaced outwards towards the combustion chamber, a valve seat surface on the needle head lifting off from a valve seat on a nozzle body.
- the instantaneous opening cross section of the nozzle holes is determined as a function of the needle stroke by a control edge on the inner edge of the valve seat of the nozzle body.
- the injection valve has two rows of controllable nozzle holes which are offset from one another in the direction of movement of the valve needle.
- the nozzle holes in one row differ from the nozzle holes in the other row in their inclination to the nozzle axis and in their cross-sectional shape, so that the mixture formation in the combustion chamber can be adapted to the operating parameters over a wide range.
- the fuel injection valve is a combination of a poppet valve, which prevents the injection nozzle from dripping when closed, and a slide valve, which varies the injection quantity and fuel preparation can. Because of the nozzle holes in the valve needle, the walls of the valve needles must be of sufficient thickness.
- valve needle head increases the mass of the valve, so that in addition to the complexity of the injection nozzle, the combination of two control mechanisms means that the needle control and actuation is very complex because of the mass of the nozzle needle and can lead to switching noises. In addition, such a system is not possible for injectors with nozzle needles opening inwards.
- an inwardly opening injection nozzle is also known with two rows of nozzle bores, which are made in the nozzle body and are opened and closed by two coaxial nozzle needles with corresponding end faces.
- the invention is based on the object of simplifying a tightly closing slide valve and reducing the mass of the moving part. It is solved according to the invention by the features of claim 1. Further advantageous embodiments result from the subclaims.
- the control surface on the sliding sleeve towards the control cylinder is radially elastically flexible. As a result, it can tightly close the control openings in the closed state without high manufacturing expenditure for tight fits. It is advantageous here that the control surfaces bear against the control cylinder under a predetermined pretension or are pressed against the control cylinder by the pressure of a controlled medium, a gas or a liquid. Since the contact pressure increases with increasing medium pressure, the slide valve seals reliably even at high media pressures.
- the medium namely the fuel is supplied under high pressure through the cavity of the valve needle or the sliding sleeve
- the slide valve according to the invention is characterized above all by a simple structure, freedom from leakage and a low mass of the moving parts, as a result of which the effort for the control and actuator system is reduced with short response times. Switching noises are also avoided.
- the elasticity in the radial direction can be generated in that the thin-walled sliding sleeve in the area of the control surfaces is designed like a membrane or in that the control surface is arranged on resilient parts of the sliding sleeve.
- the sliding sleeve has at least one longitudinal slot, so that the control surface can yield radially. If a plurality of control surfaces are assigned to a plurality of control openings distributed over the circumference, a corresponding number of longitudinal slots are provided which form spring tongues between them, on which the control surfaces are arranged. If the longitudinal slots are made up to the end face of the sliding sleeve, it is advantageous to arrange the control surfaces at the end of the spring tongues thus formed.
- the spring tongue's geometric design can influence its spring characteristics and adapt it to the application.
- the spring tongues are expediently reinforced in the area of the control surfaces. This gives the control surfaces sufficient dimensional stability so that they can lie close to the control openings.
- the sliding sleeve can be made of magnetically conductive material and its upper part can simultaneously serve as an armature of a magnetic circuit.
- the control surfaces of the sliding sleeve are clearly assigned to the control openings, it is expedient to secure the sliding sleeve against rotation during its axial movement or to guide it in the rotational movement. This can happen, for example, in that the sliding sleeve or a part connected to it has a cross-sectional profile that deviates from the circular shape and is guided in a suitable guide of the valve body. Such a profile could be a polygonal profile, for example. Furthermore, the sliding sleeve could be guided in a steep thread.
- Fig. 1 shows a schematic longitudinal section through a slide valve according to the invention
- Fig. 2 is an enlarged perspective view of a
- a slide valve 10 in the form of a fuel injection valve for an internal combustion engine has a valve housing 11, in which a sliding sleeve 12 is guided axially displaceably in the direction of movement 29 in a control cylinder 13.
- the sliding sleeve 12 is connected to a valve rod 14 by a cross pin 15, which is inserted in a transverse bore 16 of the sliding sleeve 12. This is actuated by an actuator system, not shown, for example by an electromagnet. confirmed.
- the sliding sleeve 12 and its upper part 27 can be made of magnetic material and designed as a magnet armature.
- the sliding sleeve 12 has longitudinal slots 24, which are distributed over the circumference and form spring tongues 25 between them, at the ends of which control surfaces 23 are arranged on the outer circumference, which interact with control openings 17, 18 in the control cylinder 13.
- Outwardly directed nozzle bores 19, 20 adjoin the control openings 17, 18. These are arranged offset to one another in the direction of movement 29 of the sliding sleeve 12.
- the control surfaces 23 cover the control openings 17, 18.
- a control surface 23 can cooperate with one or more control openings 17, 18.
- the corresponding control opening 17 or 18 is first released and, when the sliding sleeve 12 is adjusted further, the control opening 17 or 18 which has remained closed until now.
- the sliding sleeve 12 can thus alternately or successively more control openings 17 or 18 more o - the less tax.
- the spring tongues 25 are reinforced, so that the control surfaces 23 bear tightly against the control openings 17, 18 due to the increased dimensional stability and seal them off without leakage.
- the pressure with which the control surfaces 23 bear against the control openings 17, 18 can be achieved by a specific pretensioning of the spring tongues 25 or by the pressure of the medium to be controlled. This is fed centrally through a cavity 22 of the sliding sleeve 12 and conveyed through the nozzle bores 19, 20.
- the control cylinder 13 closes at the end with the blind hole 21.
- the spring tongues 25 are expediently pre-bent outwards by a predetermined amount. Furthermore, the spring characteristic can be determined by the choice of material and the geometric design.
- the valve housing 11 Around the sliding sleeve well To be able to mount, the valve housing 11 has a conical area 28 towards the control cylinder 13, through which the spring tongues 25 are pressed back to the size of the control cylinder 13.
- FIG. 2 which essentially represents a section of FIG. 1 on an enlarged scale, shows two rows of nozzle bores 19, 20 which are arranged offset to one another in the direction of movement 29 and / or in the circumferential direction.
- the nozzle bores 19, 20 can have a different inclination to the direction of movement 29 and also have different cross-sectional profiles, as is known per se in fuel injection valves of the type mentioned at the outset.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10261175 | 2002-12-20 | ||
| DE10261175A DE10261175A1 (de) | 2002-12-20 | 2002-12-20 | Schieberventil |
| PCT/EP2003/012936 WO2004059161A1 (de) | 2002-12-20 | 2003-11-19 | Schieberventil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1576281A1 true EP1576281A1 (de) | 2005-09-21 |
| EP1576281B1 EP1576281B1 (de) | 2006-06-07 |
Family
ID=32478016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03776910A Expired - Lifetime EP1576281B1 (de) | 2002-12-20 | 2003-11-19 | Schieberventil |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20060124763A1 (de) |
| EP (1) | EP1576281B1 (de) |
| JP (1) | JP4232041B2 (de) |
| DE (2) | DE10261175A1 (de) |
| WO (1) | WO2004059161A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465412A (zh) * | 2015-02-17 | 2016-04-06 | 江苏瑞朗博机械设备有限公司 | 压杆失稳触发型换向阀 |
| CN105387245B (zh) * | 2015-12-16 | 2017-09-29 | 日照海卓液压有限公司 | 六位五通逻辑选择阀 |
| US10337448B2 (en) * | 2015-12-22 | 2019-07-02 | Ford Global Technologies, Llc | Methods and systems for a fuel injector assembly |
| US10570865B2 (en) * | 2016-11-08 | 2020-02-25 | Ford Global Technologies, Llc | Fuel injector with variable flow direction |
| CN114483383B (zh) * | 2022-01-28 | 2023-07-21 | 刘义亭 | 一种气体燃料喷射器 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE834310C (de) * | 1949-10-11 | 1952-03-17 | Ind A G | Absperrvorrichtung fuer Fluessigkeiten und Gase |
| US3762443A (en) * | 1967-09-19 | 1973-10-02 | Tektro Inc | Resilient fluid control valve |
| US3711068A (en) * | 1970-09-25 | 1973-01-16 | J Perry | Carburetor fuel metering valve |
| DE7234188U (de) * | 1972-09-16 | 1973-01-18 | Feuchter P | Dosiervorrichtung |
| US4233885A (en) * | 1978-10-24 | 1980-11-18 | Deschner Richard E | Apparatus for improved motion control |
| DE2855497A1 (de) * | 1978-12-22 | 1980-07-03 | Wabco Fahrzeugbremsen Gmbh | Dichtung, insbesondere fuer ein schieberventil |
| DK393281A (da) * | 1981-09-07 | 1983-03-08 | H R Joergensen | Spaerreventil til ledningssystemer,navnlig til afdraeningssystemer for urene vaesker saasom gylle |
| US5392745A (en) * | 1987-02-20 | 1995-02-28 | Servojet Electric Systems, Ltd. | Expanding cloud fuel injecting system |
| DE4119402C2 (de) * | 1991-06-10 | 1995-01-12 | Mannesmann Ag | Schieberventil |
| FR2699638B1 (fr) * | 1992-12-21 | 1995-02-10 | Rollin Sa | Tiroir de valve distributrice de fluide à plusieurs voies, valve équipée de ce tiroir et procédé de fabrication de ce tiroir. |
| US5544816A (en) * | 1994-08-18 | 1996-08-13 | Siemens Automotive L.P. | Housing for coil of solenoid-operated fuel injector |
| JPH08144896A (ja) * | 1994-11-25 | 1996-06-04 | Zexel Corp | 可変噴孔型燃料噴射ノズル |
| US5626325A (en) * | 1995-09-14 | 1997-05-06 | Cummins Engine Company, Inc. | High pressure control valve for a fuel injection system |
| DE29713628U1 (de) * | 1997-07-31 | 1998-11-26 | Robert Bosch Gmbh, 70469 Stuttgart | Kraftstoffeinspritzdüse |
| DE19908420A1 (de) * | 1999-02-26 | 2000-05-25 | Siemens Ag | Steuerventil zur Steuerung des Servodruckes für die Einspritzanlage eines Dieselmotors |
| DE19916485C2 (de) * | 1999-04-13 | 2001-10-31 | Daimler Chrysler Ag | Verfahren zum Betrieb einer Hubkolbenbrennkraftmaschine |
| DE10010863A1 (de) * | 2000-03-06 | 2001-09-27 | Bosch Gmbh Robert | Einspritzdüse |
| DE10034445A1 (de) * | 2000-07-15 | 2002-01-24 | Bosch Gmbh Robert | Brennstoffeinspritzventil |
-
2002
- 2002-12-20 DE DE10261175A patent/DE10261175A1/de not_active Withdrawn
-
2003
- 2003-11-19 US US10/540,290 patent/US20060124763A1/en not_active Abandoned
- 2003-11-19 WO PCT/EP2003/012936 patent/WO2004059161A1/de not_active Ceased
- 2003-11-19 JP JP2004562553A patent/JP4232041B2/ja not_active Expired - Fee Related
- 2003-11-19 EP EP03776910A patent/EP1576281B1/de not_active Expired - Lifetime
- 2003-11-19 DE DE50303752T patent/DE50303752D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004059161A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20060124763A1 (en) | 2006-06-15 |
| DE50303752D1 (de) | 2006-07-20 |
| JP4232041B2 (ja) | 2009-03-04 |
| EP1576281B1 (de) | 2006-06-07 |
| WO2004059161A1 (de) | 2004-07-15 |
| JP2006510846A (ja) | 2006-03-30 |
| DE10261175A1 (de) | 2004-07-08 |
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