EP0537175A1 - Electrovanne. - Google Patents
Electrovanne.Info
- Publication number
- EP0537175A1 EP0537175A1 EP91909626A EP91909626A EP0537175A1 EP 0537175 A1 EP0537175 A1 EP 0537175A1 EP 91909626 A EP91909626 A EP 91909626A EP 91909626 A EP91909626 A EP 91909626A EP 0537175 A1 EP0537175 A1 EP 0537175A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- spring
- coupling
- electromagnet
- solenoid 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
- 239000000446 fuel Substances 0.000 claims abstract description 10
- 238000013016 damping Methods 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims description 43
- 238000010168 coupling process Methods 0.000 claims description 43
- 238000005859 coupling reaction Methods 0.000 claims description 43
- 238000007789 sealing Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 2
- 230000036316 preload Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding 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
- 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
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
- F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic means
Definitions
- the invention relates to a solenoid valve for controlling the flow opening of a connecting line, which in particular carries fuel as a fluid, according to the preamble of claim 1.
- a solenoid valve known from FR-A 2 171 342
- the armature is designed as a coupling member and has an axial blind bore, which is flanged at its outlet at the edge and holds a spring plate with this border as a coupling member, which springs from that in the blind bore clamped coupling spring is acted upon.
- valve member is acted upon axially in the direction of the coupling member by a return spring and is held in contact with the spring plate in such a way that the valve member follows the armature when the armature or the coupling member is tightened against a return spring.
- the electromagnet When the electromagnet is not energized, the armature is reset by the return spring and the valve member with its sealing surface is pressed onto a conical seat, the armature of the coupling member being lifted from the flanged edge of the blind bore in the coupling member against the force of the coupling spring by the valve member as the armature moves further can.
- the coupling provided there has a greater rigidity than the return spring and is to do so determines to compensate for any path differences between the armature and the valve member and thus to offer the possibility of allowing higher tolerances in the manufacture of the solenoid valve or different temperature expansion of the individual parts and still providing a high closing force.
- the solenoid valve with the characterizing features of claim 1 has the advantage that the compression of the coupling spring after lifting the support part from its stop is damped by the federal government, so that the increase in force
- Closing direction is delayed immediately after the sealing surface of the valve member strikes the valve seat and the bouncing tendency of the valve closing member is further reduced accordingly.
- valve member has a short flight time during the opening movement because the armature and the coupling member were pre-accelerated before the valve part was taken along.
- the influence of flow forces on the valve seat on the movement of the valve member is small and the quantity of the injected fuel is also small.
- Advantageous further developments and improvements of the solenoid valve specified in patent claim 1 are represented by the measures listed in the following claims.
- a particularly advantageous embodiment is given by that of claim 2, in which the support part is formed in a simple manner by the collar on the valve member.
- the valve member is rigidly coupled to the coupling member in the opening direction, so that a reliable reopening of the valve is achieved under the action of the opening force.
- the fluid part can be separated from the electromagnet part, so that the fluid does not influence the functionality of the electromagnet. This separation advantageously takes place through the configuration according to claim 6.
- the invention is explained in more detail with reference to the figure, which represents an embodiment.
- the figure shows the solenoid valve in longitudinal section.
- This has a two-part valve housing 1, consisting of a metallic valve block 2 and a cap 3 placed thereon.
- the cap covers a recess 4 in the end face of the valve block 2, which is provided with an internal thread 5 and from which a guide bore 6 axially extends through the valve block leads.
- This guide bore 6 is designed as a stepped bore with a stepped bore part 8 of reduced diameter, which has a conical shoulder at the transition to the guide bore 6 and which forms a valve seat 9.
- the exit of the stepped bore part 8 from the valve block 6 opens into a collecting space 10 which is formed in a lower cover 11 which is tightly connected to the valve block 6 and from which a leakage connection 12 leads away.
- the collecting space 10 is connected to the recess 5 via a compensating bore 14 lying parallel to the guide bore 6.
- a fluid line 17 opens into the guide bore 6 via a first annular groove 16 in the guide bore wall on the side of the annular valve seat 9 facing the recess 4. B. from a pump workspace of a fuel injection pump.
- a second annular groove 18 is provided axially below in the stepped bore part 8, from which the further part of the fluid line 17 leads away.
- a valve closing member 20 is tightly displaceable, which is hollow-cylindrical and has an annular shoulder 21 on its circumference with a sealing surface which can be brought into tight contact with the valve seat 9.
- the hollow valve member is open on the side of the catch chamber and has an inwardly projecting collar 23 on the side of the recess, which is inserted through a coupling spring 24 onto the head 25 of a screw 26 inserted into the valve closing member 20 from the side of the catch chamber 10 is pressed.
- the screw 26 is axially screwed into a coupling member 23, which is guided in a sealing manner in the recess-side part of the guide bore and, with its end face 29 facing the valve member, serves to engage a spring plate 30 within the guide bore 6 of the coupling spring 24 which is supported here.
- the preload of the coupling spring, with which it holds the valve member 20 on the head 25 of the screw, is thus defined via the screw-in depth of the screw 26.
- the coupling member protrudes into the recess 4 and there has a damping collar 32 which can be brought into abutment with the end face 34 of the recess 4 with its end face 33 facing the valve member.
- the coupling member 28 is made in several parts and has an axial threaded pocket bore 36 entering from the side of the recess, into which an armature 37 is screwed and thereby firmly and tightly clamps the inner edge 38 of a plate spring.
- the Belleville washer is coated with sealing material on the side of the end face 34 of the recess 4.
- a spring washer with punched-out spring arms can also be used, and a sealing washer or membrane can be provided on the side of the spring or the washer facing the valve member.
- the outer edge of the sealing washer or the coated plate spring rests on a round cord seal 41 which is embedded in a recess 42 in the end face 34.
- an eyebolt 44 screwed into the thread 5 of the recess engages on the side of the outer edge 40 facing away from the round cord seal 41.
- the plate spring 39 or the sealing disk or membrane subdivide the recess 4 into a magnet-side space 50 and a valve member-side space 51, which is now sealed off from the magnet-side space, so that this and the collecting space leaking fluid, for. B. fuel, which can be discharged via leak port 12.
- This keeps the electromagnet free of fuel, which may have a corrosive effect on the metal parts and could affect the functionality of the electromagnet.
- the compensating bore 14 ensures the free movement of the spring and the coupling member with valve member 20.
- the end face of the core 48 is covered with a thin metal layer, so that regardless of the coercive field strength there is a small resonance force and a robust stop surface on the magnetic core is achieved.
- the valve member 20 Due to the plate spring, which is stronger than the coupling spring 24, the valve member 20 is held in the closed position shown or brought into this closed position after the magnet has dropped.
- the valve member 20 is slightly raised from the head 25 so that the Closing force of the plate spring 39 reaches the closing member 20 via the coupling spring preload. If the solenoid valve is to be opened, the winding 47 is excited and the armature 37 is consequently attracted, counter to the force of the plate spring 39, which is supported on the eyebolt 44. In this process, the 3 and 23 of the closing member 20 come into contact with the head 25 again and is carried along by this together with the armature 37 and the coupling member 38 rigidly connected to it.
- the shoulder 21 of the valve member then lifts off the seat 9 and allows a flow connection between the parts of the fluid line 17 via a circumferential recess 53 on the valve closing member 20 to the side of the collecting space 10.
- the valve closing member is essentially pressure balanced. If the solenoid valve is to be brought into the closed position, the excitation of the electromagnet is interrupted and the plate spring 39 carries out the closing movement. First, the coupling member 28 moves with the plate spring in the closing direction together with the valve member 20 until it comes into contact with the valve seat 9. In the subsequent movement, the collar 23 lifts off the head 25 so that the coupling spring is compressed and the increase in closing force acting on the closing element is determined by the increase in the preload of the coupling spring.
- the damping collar 32 approaches the end face 34, so that the movement in the closing direction of the coupling member 25 is slowed down and the closing force is increased in a damped manner until its final value is reached when the damping collar 32 is applied to the end face 34.
- This ensures that the solenoid valve closes securely and prevents the valve member from opening again briefly when the force is applied suddenly and thus rebounding from the valve seat during the firing process.
- the moving mass is kept small by the elastic coupling between the coupling member 23 and the closing member 20, and it is for this reason that the damping surface on the damping collar 32 can be formed in a sufficient size.
- the damping is improved by the fact that there is a fuel filling in the valve member-side space, which the displacement by the damping collar 32 has a greater resistance than z. B. opposed air.
- the restoring force of the plate spring 39 served as the closing force.
- the magnetic force is used as the closing force against an opening spring acting in the opening direction.
- the principle of the invention is shown using the exemplary embodiment and can be implemented in various embodiments.
- the closing spring or opening spring and magnet can also act on different sides of the valve closing element with a corresponding variation in the design.
- a vice spring clamped z. B. act in the opening direction and act an upside-down electromagnet with axial implementation of an actuating rod in the closing direction.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4020951A DE4020951A1 (de) | 1990-06-30 | 1990-06-30 | Magnetventil |
DE4020951 | 1990-06-30 | ||
PCT/DE1991/000436 WO1992000479A1 (fr) | 1990-06-30 | 1991-05-25 | Electrovanne |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0537175A1 true EP0537175A1 (fr) | 1993-04-21 |
EP0537175B1 EP0537175B1 (fr) | 1995-08-02 |
Family
ID=6409458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91909626A Expired - Lifetime EP0537175B1 (fr) | 1990-06-30 | 1991-05-25 | Electrovanne |
Country Status (8)
Country | Link |
---|---|
US (1) | US5370355A (fr) |
EP (1) | EP0537175B1 (fr) |
JP (1) | JP3004354B2 (fr) |
CZ (1) | CZ280232B6 (fr) |
DE (2) | DE4020951A1 (fr) |
ES (1) | ES2077229T3 (fr) |
RU (1) | RU2068521C1 (fr) |
WO (1) | WO1992000479A1 (fr) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5232196A (en) * | 1992-03-31 | 1993-08-03 | Ldi Pneutronics Corporation | Proportional solenoid controlled valve |
DE69624240T2 (de) * | 1995-06-23 | 2003-06-18 | Diesel Technology Co | Brennstoffpumpe |
IT1276503B1 (it) * | 1995-07-14 | 1997-10-31 | Elasis Sistema Ricerca Fiat | Perfezionamenti ad una valvola di dosaggio a comando elettromagnetico, per un iniettore di combustibile. |
JP3701367B2 (ja) * | 1996-02-22 | 2005-09-28 | Smc株式会社 | ポペット弁 |
US5961097A (en) * | 1996-12-17 | 1999-10-05 | Caterpillar Inc. | Electromagnetically actuated valve with thermal compensation |
DE19705431A1 (de) * | 1997-02-13 | 1998-08-20 | Bosch Gmbh Robert | Rückhaltesystem |
DE19716220B4 (de) * | 1997-04-18 | 2007-08-23 | Robert Bosch Gmbh | Kraftstoffeinspritzeinheit für Brennkraftmaschinen |
EP0978931B1 (fr) * | 1998-02-23 | 2008-08-06 | Mitsubishi Denki Kabushiki Kaisha | Soupape de regulation |
DE19820341C2 (de) | 1998-05-07 | 2000-04-06 | Daimler Chrysler Ag | Betätigungsvorrichtung für eine Hochdruck-Einspritzdüse für flüssige Einspritzmedien |
US6109541A (en) * | 1998-07-23 | 2000-08-29 | Caterpillar Inc. | Apparatus for reducing the bounce of a poppet valve |
DE19839522C1 (de) * | 1998-08-29 | 1999-12-30 | Daimler Chrysler Ag | Für eine Brennkraftmaschine vorgesehene Steckpumpe mit integriertem Magnetventil |
DE19923422C2 (de) * | 1999-05-21 | 2003-05-08 | Bosch Gmbh Robert | Elektronisches Einspritzsystem |
US6250329B1 (en) * | 1999-08-30 | 2001-06-26 | Ardishir Rashidi | Snap open pressure relief valve |
DE10016600A1 (de) * | 1999-11-16 | 2001-05-17 | Continental Teves Ag & Co Ohg | Elektromagnetventil |
WO2001036242A1 (fr) | 1999-11-16 | 2001-05-25 | Continental Teves Ag & Co. Ohg | Vanne electromagnetique |
DE10112661A1 (de) * | 2001-03-16 | 2002-09-19 | Bosch Gmbh Robert | Magnetventil |
DE10148219B4 (de) * | 2001-09-28 | 2007-05-16 | Bosch Gmbh Robert | Verfahren, Computerprogram und Steuer-und/oder Regelgerät für eine Brennkraftmaschine, sowie Brennkraftmaschine |
DE10308482B4 (de) * | 2002-02-26 | 2006-11-09 | Kendrion Binder Magnete Gmbh | Elektromagnetventil |
DE10209527A1 (de) * | 2002-03-04 | 2003-09-25 | Bosch Gmbh Robert | Einrichtung zur druckmodulierten Formung des Einspritzverlaufes |
JP3843915B2 (ja) * | 2002-08-29 | 2006-11-08 | 株式会社ノーリツ | 燃焼装置 |
DE102008030453A1 (de) * | 2008-06-26 | 2010-01-14 | Hydac Electronic Gmbh | Betätigungsvorrichtung |
EP2998626B1 (fr) | 2014-09-19 | 2017-08-16 | Danfoss A/S | Vanne à solénoïde |
DE102022128756A1 (de) | 2022-10-28 | 2024-05-08 | Norgren Gmbh | Elektromechanisches Ventil |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2343806A (en) * | 1941-08-20 | 1944-03-07 | Square D Co | Valve |
US2697581A (en) * | 1949-02-14 | 1954-12-21 | Gen Controls Co | Electromagnetically operated valve with adjustable opening |
US2650617A (en) * | 1950-09-07 | 1953-09-01 | Missouri Automatic Contr Corp | Electromagnetic valve |
US2827923A (en) * | 1954-08-30 | 1958-03-25 | N G N Electrical Ltd | Magnetically operated valves |
US2980139A (en) * | 1956-10-10 | 1961-04-18 | Westinghouse Electric Corp | Two-way valve |
US3575199A (en) * | 1968-11-04 | 1971-04-20 | Reef Baker Corp | Automatic condensate valve |
DE2051166A1 (de) * | 1970-02-09 | 1971-08-19 | Magdeburger Armaturenwerke | Dampfungsvorrichtung insbesondere fur Kegel indirekt gesteuerter Magnetven |
IT947485B (it) * | 1972-02-10 | 1973-05-21 | Sirai S R L Soc Italiana Regol | Valvola in particolare ad aziona mento elettromagnetico |
DE2262247A1 (de) * | 1972-12-20 | 1974-06-27 | Teves Gmbh Alfred | Elektromagnetisches ventil |
JPS5847338Y2 (ja) * | 1974-07-27 | 1983-10-28 | 株式会社ナブコ | 電磁式流体圧力制御弁 |
US3995813A (en) * | 1974-09-13 | 1976-12-07 | Bart Hans U | Piezoelectric fuel injector valve |
FR2372501A1 (fr) * | 1976-11-30 | 1978-06-23 | Saunier Duval | Montage de l'armature d'un mecanisme de securite electromagnetique |
DE2739085A1 (de) * | 1977-08-30 | 1979-03-08 | Technologieforschung Gmbh | Magnetventil |
DE3240959A1 (de) * | 1981-11-11 | 1983-05-19 | Lucas Industries P.L.C., Birmingham, West Midlands | Fluidsteuerventil |
GB8305408D0 (en) * | 1983-02-26 | 1983-03-30 | Lucas Ind Plc | Fluid control valves |
DE3474712D1 (en) * | 1984-04-10 | 1988-11-24 | Weber Srl | Electromagnetically-controlled valve, suitable for controlling an additional air flow in a feed equipment for an internal combustion engine |
DE3928613A1 (de) * | 1989-08-30 | 1991-03-07 | Bosch Gmbh Robert | Elektromagnetisches schaltventil |
-
1990
- 1990-06-30 DE DE4020951A patent/DE4020951A1/de not_active Withdrawn
-
1991
- 1991-05-25 ES ES91909626T patent/ES2077229T3/es not_active Expired - Lifetime
- 1991-05-25 DE DE59106170T patent/DE59106170D1/de not_active Expired - Fee Related
- 1991-05-25 WO PCT/DE1991/000436 patent/WO1992000479A1/fr active IP Right Grant
- 1991-05-25 EP EP91909626A patent/EP0537175B1/fr not_active Expired - Lifetime
- 1991-05-25 JP JP3509067A patent/JP3004354B2/ja not_active Expired - Fee Related
- 1991-05-25 RU RU9192016498A patent/RU2068521C1/ru active
- 1991-05-25 US US07/966,045 patent/US5370355A/en not_active Expired - Fee Related
- 1991-06-27 CZ CS911972A patent/CZ280232B6/cs unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9200479A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2077229T3 (es) | 1995-11-16 |
RU2068521C1 (ru) | 1996-10-27 |
CS197291A3 (en) | 1992-02-19 |
DE59106170D1 (de) | 1995-09-07 |
US5370355A (en) | 1994-12-06 |
EP0537175B1 (fr) | 1995-08-02 |
DE4020951A1 (de) | 1992-01-02 |
JPH05508209A (ja) | 1993-11-18 |
JP3004354B2 (ja) | 2000-01-31 |
WO1992000479A1 (fr) | 1992-01-09 |
CZ280232B6 (cs) | 1995-12-13 |
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