EP1252426B1 - Valve for the control of fluids - Google Patents
Valve for the control of fluids Download PDFInfo
- Publication number
- EP1252426B1 EP1252426B1 EP01909461A EP01909461A EP1252426B1 EP 1252426 B1 EP1252426 B1 EP 1252426B1 EP 01909461 A EP01909461 A EP 01909461A EP 01909461 A EP01909461 A EP 01909461A EP 1252426 B1 EP1252426 B1 EP 1252426B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- valve body
- ball
- controlling fluids
- control
- 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.)
- Expired - Lifetime
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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
- 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
- F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
- F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated 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
- 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
- F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
-
- 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
-
- 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
- F02M63/0045—Three-way 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
- 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
- F02M63/0059—Arrangements of valve actuators
- F02M63/0061—Single actuator acting on two or more valve bodies
-
- 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
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
Definitions
- the invention relates to a valve for controlling Liquids according to the preamble of claim 1.
- EP 0 477 400 A1 is a valve which is common today described. There is in a stepped bore of the Valve housing an actuating piston of the valve member in a part of the stepped bore with a small diameter slidably arranged. A through a piezoelectric actuator movable larger piston is in one part of the Stepped bore with a larger diameter. Between the two pistons are filled with a pressure medium formed hydraulic pressure chamber, so that a hydraulic translation of a movement of the piezoelectric actuator he follows.
- a hydraulic actuated fuel injector with an injector housing known, which a hydraulic fluid inlet and a Needle control chamber has.
- a hydraulic unit Inside the injector fuel passes to the injector housing under pressure too.
- the hydraulic unit includes a Electromagnetically actuated control valve for the Hydraulic fluid and can open the hydraulic fluid inlet and shut down.
- a needle valve element comprises a pressure of Needle control chamber exposed hydraulic closing surface.
- an electromagnet is used Needle control valve provided which in the injector is mounted and the needle control chamber with a High pressure fluid source connects or can shut off. This allows the slow response of the Hydraulic fluid control valve direct control of fast responding needle valve by the only used fast-acting electromagnet.
- an injector is known from Bosch, equipped with a servo 3/2-seat slide valve is.
- valve according to the invention with the characterizing Features of claim 1 has the other hand Advantage that instead of the known 3/2-seat slide valves a 3/2-double-seat valve is used, wherein the Seats and guides do not have to run to each other. In addition, by providing the second seat a hard seal against a slider with a small stroke possible.
- first valve body formed with a pan into which the can engage the second valve body. This will be in structurally simple form a dense interaction ensured between the two valve bodies.
- the second valve body is in essentially formed as a ball, which in the pan of first valve body can engage sealingly.
- the ball is preferably with a cylindrical Extension formed, which is the leadership of the second Valve body takes over.
- Guides of cylindrical Elements are at both low and high pressures Easily achievable, and it can be on known, commercially common constructions are used.
- the cylindrical extension of his Ball remote end portion formed with a ring.
- Valve according to the invention for controlling fluids engages a clamping element on the ring, that the ball in the pan is pressed for a tight fit.
- first and second valve bodies act as one Unit and can be used in a one-piece housing become.
- leadership of the first valve body and the guide of the second valve body separated from each other, and it is not necessary that the two guides to each other.
- FIG. 1 shows schematically a view of a Fuel injection valve according to one embodiment the invention.
- FIG. 1 finds the valve according to the invention application in one Fuel injection system, in which the injection pump and the injection nozzle form a unit (so-called pump-nozzle unit (PDE)).
- PDE pump-nozzle unit
- FIG. 1 is merely based on the invention Innovation focused.
- the injection valve 1 consists of a not shown decentralized pump unit and a not shown Control unit.
- the control unit comprises an in a housing, not shown, not arranged shown piezoelectric actuator with a piston 2, by means of Hydraulic Translation 3 a control valve 4 drives.
- the control valve 4 consists of a first body 5, which at its lower end in the attached figure one So-called pan 6 has. To this pan 6 closes in the attached figure, the second valve body 7 at.
- the second valve body consists of a ball 8, which in the pan 6 tightly engages, as well as a cylindrical Extension 9.
- the cylindrical extension 9 is hereby separate from the first Valve body 5 out and has at his in the attached figure lower end portion one on the outer circumference of the cylindrical extension 9 trained ring 10. At the ring 10 engages a spring 11 which the ring 10 and thus the second valve body 7 with the ball 8 against the Pan 6 of the first valve body 5 presses.
- control valve 4 with a first seat 12th , and a second seat 13, with which, respectively the first valve body 5 and the second valve body 7 in Arrive plant.
- Valve 1 In the following the operation of the invention Valve 1 described. Will not because of one shown piezoelectric actuator with energization of the piezoelectric actuator Pressure exerted on the piston 2, this pressure is of the hydraulic booster 3 according to one given gear ratio at first Transfer valve body 5.
- first one Valve body due to the combination of spring 11 and second valve body 7 at rest or de-energized State of the valve 1 in the first seat 12 of the Control valve 4 biased. Therefore, when the of hydraulic translator 3 passed pressure the Compressive force of the spring 11 exceeds, the first and second Valve body 5, 7 in the illustration of the accompanying figure moves down to the ball 8 of the second valve body 7 comes into contact with the second valve 13. simultaneously can fuel from the inlet Z by the control valve 4 for not shown nozzle flow through the outlet A.
- the ball 8 of the second valve body 6 maximum one stroke H when controlling the control valve. 5 or deactivation of the control valve 5 can go through.
- the stroke is in the order of about 0.3mm dimensioned.
- the cooperating valve body 5, 7 each have a pan 6 and a ball 8 for an adequate interaction are, of course, other coordinated ones geometric shapes as the pan 6 and the ball 8th conceivable.
Abstract
Description
Die Erfindung betrifft ein Ventil zum Steuern von
Flüssigkeiten gemäß der Gattung des Patentanspruches 1.The invention relates to a valve for controlling
Liquids according to the preamble of
In der EP 0 477 400 A1 ist ein heute übliches Ventil beschrieben. Dort ist in einer Stufenbohrung des Ventilgehäuses ein Betätigungskolben des Ventilgliedes in einem Teil der Stufenbohrung mit kleinem Durchmesser verschiebbar angeordnet. Ein durch einen Piezoaktor bewegbarer größerer Kolben ist in einem Teil der Stufenbohrung mit größerem Durchmesser angeordnet. Zwischen den beiden Kolben ist ein mit einem Druckmedium gefüllter hydraulischer Druckraum ausgebildet, so daß eine hydraulische Übersetzung einer Bewegung des Piezoaktors erfolgt. Das heißt, wenn der größere Kolben durch den Piezoaktor um eine bestimmte Wegstrecke bewegt wird, macht der Betätigungskolben des Ventilgliedes einen um das Übersetzungverhältnis der Kolbendurchmesser vergrößerten Hub, da der Kolben des Piezoaktors eine größere Fläche als der Betätigungskolben des Ventilgliedes aufweist. Dabei liegen das Ventilglied, der Betätigungskolben des Ventilgliedes, der durch den Piezoaktor bewegte Kolben und der Piezoaktor auf einer gemeinsamen Achse hintereinander. In EP 0 477 400 A1 is a valve which is common today described. There is in a stepped bore of the Valve housing an actuating piston of the valve member in a part of the stepped bore with a small diameter slidably arranged. A through a piezoelectric actuator movable larger piston is in one part of the Stepped bore with a larger diameter. Between the two pistons are filled with a pressure medium formed hydraulic pressure chamber, so that a hydraulic translation of a movement of the piezoelectric actuator he follows. That is, when the larger piston through the Piezoaktor is moved by a certain distance makes the actuating piston of the valve member to a Translation ratio of the piston diameter enlarged Hub, because the piston of the piezo actuator has a larger area than having the actuating piston of the valve member. there are the valve member, the actuating piston of Valve member, the piston moved by the piezoelectric actuator and the piezoelectric actuator on a common axis in a row.
Ferner ist aus der Druckschrift US 5,738,071 ein hydraulisch betätigter Kraftstoffinjektor mit einem Injektorgehäuse bekannt, welcher einen Hydraulikfluideinlaß sowie eine Nadel-Steuerkammer aufweist. Eine hydraulische Einheit innerhalb des Injektors führt Kraftstoff dem Injektorgehäuse unter Druck zu. Die Hydraulikeinheit umfaßt ein elektromagnetisch betätigtes Steuerventil für das Hydraulikfluid und kann den Hydraulikfluideinlaß öffnen und schließen. Ein Nadelventilelement umfaßt eine dem Druck der Nadel-Steuerkammer ausgesetzte hydraulische Schließfläche. Zusätzlich ist ein den Elektromagneten einsetzendes Nadelsteuerventil vorgesehen, welches im Injektorgehäuse montiert ist und die Nadel-Steuerkammer mit einer Hochdruckfluidquelle verbindet bzw. davon absperren kann. Hierbei ermöglicht das langsame Ansprechverhalten des Hydraulikfluid-Steuerventils eine direkte Steuerung des schnell ansprechenden Nadelventils durch den einzig eingesetzten schnellwirkenden Elektromagneten.Furthermore, from the document US 5,738,071 a hydraulic actuated fuel injector with an injector housing known, which a hydraulic fluid inlet and a Needle control chamber has. A hydraulic unit Inside the injector, fuel passes to the injector housing under pressure too. The hydraulic unit includes a Electromagnetically actuated control valve for the Hydraulic fluid and can open the hydraulic fluid inlet and shut down. A needle valve element comprises a pressure of Needle control chamber exposed hydraulic closing surface. In addition, an electromagnet is used Needle control valve provided which in the injector is mounted and the needle control chamber with a High pressure fluid source connects or can shut off. This allows the slow response of the Hydraulic fluid control valve direct control of fast responding needle valve by the only used fast-acting electromagnet.
Schließlich ist aus dem Hause Bosch ein Injektor bekannt, der mit einem Servo-3/2-Sitz-Schieber-Ventil ausgerüstet ist.Finally, an injector is known from Bosch, equipped with a servo 3/2-seat slide valve is.
Bei diesen bekannten Systemen hat es sich als nachteilig herausgestellt, daß die Schieber eine sehr kurze Überdeckung aufweisen, so daß sie für PKW-Anwendungen mit Ventilhüben um ca. 0,3mm ungeeignet sind. Anstelle der bei diesen Systemen verwendeten Sitz-Schieber-Ventilen könnten zwar bekannte Doppelsitzventile die Problematik der kurzen Überdeckung in Verbindung mit Ventilhüben um ca. 0,3mm überwinden, jedoch sind die bekannten Doppelsitzventile nicht in der Praxis einsetzbar, da durch den nötigen Kraftausgleich zwei Sitze zu zwei Führungen in zumindest einem zweigeteilten Gehäuse führen würden. In these known systems, it has a disadvantage found that the slide a very short coverage so that they for car applications with valve lifts around about 0.3mm are unsuitable. Instead of using these systems Although used seat-slide valves could be known Double seat valves the problem of short coverage in Overcome connection with valve strokes by approx. 0.3mm, however the known double-seat valves are not in practice can be used because of the necessary force balance two seats to two guides in at least a two-part housing would lead.
Das erfindungsgemäße Ventil mit den kennzeichnenden
Merkmalen des Patentanspruches 1 hat demgegenüber den
Vorteil, daß anstelle der bekannten 3/2-Sitz-Schieber-Ventile
ein 3/2-Doppelsitz-Ventil einsetzbar ist, wobei die
Sitze und Führungen nicht zueinander laufen müssen.
Zusätzlich ist durch das Vorsehen des zweiten Sitzes eine
harte Abdichtung gegenüber einem Schieber bei kleinem Hub
möglich.The valve according to the invention with the characterizing
Features of
In einer besonders vorteilhaften Ausgestaltungsform ist der erste Ventilkörper mit einer Pfanne ausgebildet, in die der zweite Ventilkörper eingreifen kann. Hierdurch wird in konstruktiv einfacher Form ein dichtes Zusammenwirken zwischen den beiden Ventilkörpern gewährleistet.In a particularly advantageous embodiment of the first valve body formed with a pan into which the can engage the second valve body. This will be in structurally simple form a dense interaction ensured between the two valve bodies.
Vorteilhafterweise ist der zweite Ventilkörper im wesentlichen als Kugel ausgebildet, welche in die Pfanne des ersten Ventilkörpers dichtend eingreifen kann.Advantageously, the second valve body is in essentially formed as a ball, which in the pan of first valve body can engage sealingly.
Hierbei ist bevorzugt die Kugel mit einem zylindrischen Fortsatz ausgebildet, welcher die Führung des zweiten Ventilkörpers übernimmt. Führungen von zylindrischen Elementen sind sowohl bei niedrigen als auch hohen Drücken einfach erzielbar, und es kann auf bekannte, im Handel gängige Konstruktionen zurückgegriffen werden.Here, the ball is preferably with a cylindrical Extension formed, which is the leadership of the second Valve body takes over. Guides of cylindrical Elements are at both low and high pressures Easily achievable, and it can be on known, commercially common constructions are used.
Vorteilhaft ist der zylindrische Fortsatz an seinem der Kugel abgewandten Endbereich mit einem Ring ausgebildet.Advantageously, the cylindrical extension of his Ball remote end portion formed with a ring.
In einer besonders vorteilhaften Ausgestaltungsform des erfindungsgemäßen Ventils zum Steuern von Flüssigkeiten greift ein Spannelement derart am Ring an, daß die Kugel in die Pfanne für einen dichten Eingriff gepreßt wird. Hierdurch wirken der erste und zweite Ventilkörper als eine Einheit und können in einem einstückigen Gehäuse eingesetzt werden. Zudem sind die Führung des ersten Ventilkörpers und die Führung des zweiten Ventilkörpers voneinander getrennt, und es ist nicht erforderlich, daß die beiden Führungen zueinander verlaufen.In a particularly advantageous embodiment of the Valve according to the invention for controlling fluids engages a clamping element on the ring, that the ball in the pan is pressed for a tight fit. As a result, the first and second valve bodies act as one Unit and can be used in a one-piece housing become. In addition, the leadership of the first valve body and the guide of the second valve body separated from each other, and it is not necessary that the two guides to each other.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Das Ausführungsbeispiel wird in der nachfolgenden Beschreibung näher erläutert. Die beigefügte Figur zeigt schematisch eine Ansicht eines Kraftstoffeinspritzventils gemäß einem Ausführungsbeispiel der Erfindung.In the drawing is an embodiment of the invention shown. The embodiment is in the explained in more detail below description. The enclosed FIG. 1 shows schematically a view of a Fuel injection valve according to one embodiment the invention.
In dem in Figur 1 dargestellten Ausführungsbeispiel findet das erfindungsgemäße Ventil Anwendung in einem Kraftstoffeinspritzsystem, bei dem die Einspritzpumpe und die Einspritzdüse eine Einheit bilden (sogenannte Pumpe-Düse-Einheit (PDE)). In Figur 1 wurden jedoch die bekannten Bauteile des Kraftstoffeinspritzsystems weggelassen. Insofern ist Figur 1 lediglich auf die erfindungsgemäße Neuerung fokusiert.In the embodiment shown in Figure 1 finds the valve according to the invention application in one Fuel injection system, in which the injection pump and the injection nozzle form a unit (so-called pump-nozzle unit (PDE)). In Figure 1, however, the known Components of the fuel injection system omitted. Insofar, FIG. 1 is merely based on the invention Innovation focused.
Das Einspritzventil 1 besteht aus einer nicht dargestellten
dezentralen Pumpeneinheit und einer nicht dargestellten
Steuereinheit. Hierbei umfaßt die Steuereinheit einen in
einem nicht dargestellten Gehäuse angeordneten nicht
dargestellten Piezoaktor mit einem Kolben 2, der mittels
hydraulischer Übersetzung 3 ein Steuerventil 4 ansteuert. The
Das Steuerventil 4 besteht aus einem ersten Körper 5,
welcher an seinem in der beigefügten Figur unteren Ende eine
sogenannte Pfanne 6 aufweist. An diese Pfanne 6 schließt
sich in der beigefügten Figur der zweite Ventilkörper 7 an.
Der zweite Ventilkörper besteht aus einer Kugel 8, die in
die Pfanne 6 dicht eingreift, sowie einem zylindrischen
Fortsatz 9.The control valve 4 consists of a
Der zylindrische Fortsatz 9 ist hierbei separat vom ersten
Ventilkörper 5 geführt und weist an seinem in der
beigefügten Figur unteren Endbereich einen am äußeren Umfang
des zylindrischen Fortsatzes 9 ausgebildeten Ring 10 auf. An
dem Ring 10 greift eine Feder 11 an, welche den Ring 10 und
damit den zweiten Ventilkörper 7 mit der Kugel 8 gegen die
Pfanne 6 des ersten Ventilkörpers 5 preßt.The cylindrical extension 9 is hereby separate from the first
Valve
Schließlich ist das Steuerventil 4 mit einem ersten Sitz 12
, und einem zweiten Sitz 13 ausgebildet, mit welchen jeweils
der erste Ventilkörper 5 bzw. der zweite Ventilkörper 7 in
Anlage gelangen.Finally, the control valve 4 with a first seat 12th
, and a second seat 13, with which, respectively
the
Im folgenden wird die Funktionsweise des erfindungsgemäßen
Ventils 1 beschrieben. Wird aufgrund eines nicht
dargestellten Piezoaktors bei Bestromung des Piezoaktors
Druck auf den Kolben 2 ausgeübt, wird dieser Druck mittels
des hydraulischen Übersetzers 3 entsprechend einem
vorgegebenen Übersetzungsverhältnis auf den ersten
Ventilkörper 5 übertragen. Hierbei ist der erste
Ventilkörper aufgrund der Kombination aus Feder 11 und
zweitem Ventilkörper 7 im Ruhezustand bzw. unbestromten
Zustand des Ventils 1 in den ersten Sitz 12 des
Steuerventils 4 vorgespannt. Daher wird, wenn der vom
hydraulischen Übersetzer 3 weitergegebene Druck die
Druckkraft der Feder 11 übersteigt, der erste und zweite
Ventilkörper 5, 7 in der Darstellung der beigefügten Figur
nach unten bewegt bis die Kugel 8 des zweiten Ventilkörpers
7 in Anlage mit dem zweiten Ventil 13 gelangt. Gleichzeitig
kann Kraftstoff vom Zulauf Z durch das Steuerventil 4 zur
nicht dargestellten Düse mittels des Ablaufes A strömen.In the following the operation of the invention
Valve 1 described. Will not because of one
shown piezoelectric actuator with energization of the piezoelectric actuator
Pressure exerted on the piston 2, this pressure is
of the hydraulic booster 3 according to one
given gear ratio at first
Wird nunmehr die Bestromung des nicht dargestellten
Piezoaktors unterbrochen, werden sowohl der zweite als auch
erste Ventilkörper 5, 7 durch die Feder 11 in der
Darstellung gemäß der beigefügten Figur nach oben gedrückt,
bis der erste Ventilkörper 5 mit dem ersten Ventilsitz 12 in
Eingriff gelangt. Hierdurch wird der Kraftstoffzulauf Z zum
Ablauf A unterbrochen und andererseits der Lecköl-Ablauf LA
geöffnet, so daß sich der im Steuerventil 4 befindliche
Druck durch den Lecköl-Ablauf LA entspannen kann.Now is the energization of the not shown
Piezoaktors interrupted, both the second and
Es ist anzumerken, daß die Kugel 8 des zweiten Ventilkörpers
6 maximal einen Hub H bei Ansteuerung des Steuerventils 5
bzw. Deaktivierung des Steuerventils 5 durchlaufen kann.
Hierbei ist der Hub in einer Größenordnung von ca. 0,3mm
dimensioniert.It should be noted that the ball 8 of the
Obgleich bei obiger Beschreibung eines Ausführungsbeispieles
die zusammenwirkenden Ventilkörper 5, 7 jeweils eine Pfanne
6 bzw. eine Kugel 8 für ein adäquates Zusammenwirken
umfassen, sind natürlich auch andere aufeinander abgestimmte
geometrische Formen als die Pfanne 6 und die Kugel 8
denkbar.Although in the above description of an embodiment
the cooperating
Die vorliegenden Erfindung kann selbstverständlich auch bei anders ausgestalteten Ventilen mit hydraulischen aber auch mechanischen Übersetzern verwendet werden. Of course, the present invention can also be applied to differently designed valves with hydraulic but also mechanical translators are used.
Die vorhergehende Beschreibung des Ausführungsbeispieles gemäß der vorliegenden Erfindung dient nur zu illustrativen Zwecken und nicht zur Beschränkung der Erfindung. Im Rahmen der Erfindung sind verschiedene Änderungen und Modifikationen möglich.The previous description of the embodiment in accordance with the present invention is illustrative only Purposes and not for the purpose of limiting the invention. As part of of the invention are various changes and Modifications possible.
Claims (6)
- Valve for controlling fluids having a valve element (4) which can be activated by a transmission element (3), the transmission element (3) being controlled by the stroke of a piezoactuator, characterized in that the valve element (4) has a double seat valve in which two separate valve bodies (5, 7) are guided.
- Valve for controlling fluids according to Claim 1, characterized in that the first valve body (5) is embodied with a cup (6) in which the second valve body (7) can engage.
- Valve for controlling fluids according to Claim 1 or 2, characterized in that the second valve body (7) is essentially embodied as a ball (8).
- Valve for controlling fluids according to Claim 3, characterized in that the ball (8) is formed with a cylindrical projection (9).
- Valve for controlling fluids according to Claim 4, characterized in that the cylindrical projection (9) is formed with a ring (10) on its end region facing away from the ball.
- Valve for controlling fluids according to Claim 5, characterized in that a clamping element (11) engages on the ring (10) in such a way that the ball (8) is prestressed into the cup (6) in order to bring about a seal-forming engagement.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10002722A DE10002722A1 (en) | 2000-01-22 | 2000-01-22 | Valve for controlling liquids |
| DE10002722 | 2000-01-22 | ||
| PCT/DE2001/000121 WO2001053681A2 (en) | 2000-01-22 | 2001-01-13 | Valve for the control of fluids |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1252426A2 EP1252426A2 (en) | 2002-10-30 |
| EP1252426B1 true EP1252426B1 (en) | 2005-04-06 |
Family
ID=7628418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01909461A Expired - Lifetime EP1252426B1 (en) | 2000-01-22 | 2001-01-13 | Valve for the control of fluids |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1252426B1 (en) |
| JP (1) | JP2003532027A (en) |
| AT (1) | ATE292751T1 (en) |
| CZ (1) | CZ20022527A3 (en) |
| DE (2) | DE10002722A1 (en) |
| HU (1) | HUP0203933A2 (en) |
| WO (1) | WO2001053681A2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10055272A1 (en) * | 2000-11-08 | 2002-05-23 | Bosch Gmbh Robert | Pressure controlled injector with control valves connected in series |
| DE102006038862A1 (en) * | 2006-08-18 | 2008-02-21 | Scanwill Aps | Pressure intensifier with double seat valve |
| DE102009001003B4 (en) * | 2009-02-19 | 2017-11-30 | Robert Bosch Gmbh | Fuel injector |
| JP7033563B2 (en) * | 2019-06-13 | 2022-03-10 | Ckd株式会社 | Switching valve |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE192263T1 (en) | 1990-09-25 | 2000-05-15 | Siemens Ag | ARRANGEMENT FOR AN ADAPTIVE, MECHANICAL TOLERANCE COMPENSATION FOR THE DISTANCE TRANSFORMER OF A PIEZOELECTRIC ACTUATOR, ACTING IN THE STROKE DIRECTION |
| US5738071A (en) | 1991-05-22 | 1998-04-14 | Wolff Controls Corporation | Apparatus and method for sensing movement of fuel injector valve |
| DE29708369U1 (en) * | 1997-05-09 | 1997-07-10 | Fev Motorentech Gmbh & Co Kg | Controllable injection valve for fuel injection on internal combustion engines |
| DE19729844A1 (en) * | 1997-07-11 | 1999-01-14 | Bosch Gmbh Robert | Fuel injector |
| JP2001140726A (en) * | 1998-12-09 | 2001-05-22 | Denso Corp | Valve device and fuel injector using it |
| JP3557996B2 (en) * | 1999-06-21 | 2004-08-25 | トヨタ自動車株式会社 | Fuel injection device |
-
2000
- 2000-01-22 DE DE10002722A patent/DE10002722A1/en not_active Ceased
-
2001
- 2001-01-13 HU HU0203933A patent/HUP0203933A2/en unknown
- 2001-01-13 WO PCT/DE2001/000121 patent/WO2001053681A2/en active IP Right Grant
- 2001-01-13 DE DE50105831T patent/DE50105831D1/en not_active Expired - Fee Related
- 2001-01-13 EP EP01909461A patent/EP1252426B1/en not_active Expired - Lifetime
- 2001-01-13 AT AT01909461T patent/ATE292751T1/en not_active IP Right Cessation
- 2001-01-13 JP JP2001553519A patent/JP2003532027A/en active Pending
- 2001-01-13 CZ CZ20022527A patent/CZ20022527A3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CZ20022527A3 (en) | 2003-02-12 |
| DE50105831D1 (en) | 2005-05-12 |
| ATE292751T1 (en) | 2005-04-15 |
| EP1252426A2 (en) | 2002-10-30 |
| WO2001053681A2 (en) | 2001-07-26 |
| WO2001053681A3 (en) | 2002-02-07 |
| HUP0203933A2 (en) | 2003-03-28 |
| JP2003532027A (en) | 2003-10-28 |
| DE10002722A1 (en) | 2001-08-02 |
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