DE102006049883A1 - Fuel injecting valve for internal-combustion engine, has housing with inlet connected with side of draining throttle over inlet throttle, where side is turned away from chamber that is connected with inlet over another inlet throttle - Google Patents
Fuel injecting valve for internal-combustion engine, has housing with inlet connected with side of draining throttle over inlet throttle, where side is turned away from chamber that is connected with inlet over another inlet throttle Download PDFInfo
- Publication number
- DE102006049883A1 DE102006049883A1 DE200610049883 DE102006049883A DE102006049883A1 DE 102006049883 A1 DE102006049883 A1 DE 102006049883A1 DE 200610049883 DE200610049883 DE 200610049883 DE 102006049883 A DE102006049883 A DE 102006049883A DE 102006049883 A1 DE102006049883 A1 DE 102006049883A1
- Authority
- DE
- Germany
- Prior art keywords
- inlet
- throttle
- fuel injection
- housing
- injection 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.)
- Withdrawn
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
-
- 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
- F02M63/0042—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing combined with valve seats of the lift 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
- 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
- F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
- F02M2547/001—Control chambers formed by movable sleeves
-
- 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
- F02M63/0043—Two-way valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Stand der TechnikState of the art
Die Erfindung betrifft ein Kraftstoffeinspritzventil für Brennkraftmaschinen, mit einem einen Zulauf für den Kraftstoff aufweisenden Gehäuse, in dem eine Ventilnadel längsverschiebbar angeordnet ist, die durch ihre Längsbewegung mit einem Ventilsitz zum Öffnen und Schließen wenigstens einer Einspritzöffnung zusammenwirkt und mit einem elektromagnetischen Antrieb zum Betätigen eines Steuerventils, das einen der Betätigung der Ventilnadel dienenden Druckraum über eine Ablaufdrossel druckbeaufschlagt oder druckentlastet, wobei der Druckraum über eine erste Zulaufdrossel mit dem Zulauf verbunden ist.The The invention relates to a fuel injection valve for internal combustion engines, with an an inflow for the fuel-containing housing, in which a valve needle is longitudinally displaceable is arranged, by their longitudinal movement with a valve seat for opening and closing at least one injection port cooperates and with an electromagnetic drive for actuating a Control valve, one of the actuation the pressure acting on the valve needle pressure chamber via an outlet throttle or depressurized, wherein the pressure chamber via a first inlet throttle connected to the inlet.
Ein
derartiges Kraftstoffeinspritzventil geht aus der
Der Erfindung liegt daher die Aufgabe zugrunde, ein Kraftstoffeinspritzventil für Brennkraftmaschinen zu schaffen, das eine sehr kurze und reproduzierbare Schließzeit, also eine hohe Schließgeschwindigkeit aufweist, sodass exakte Kraftstoffeinspritzmengen der Brennkraftmaschine zur Verfügung gestellt werden.Of the Invention is therefore based on the object, a fuel injection valve for internal combustion engines to create a very short and reproducible closing time, so a high closing speed has, so that exact fuel injection quantities of the internal combustion engine made available become.
Offenbarung der ErfindungDisclosure of the invention
Diese Aufgabe wird bei einem eingangs genannten Kraftstoffeinspritzventil dadurch gelöst, dass der Zulauf über eine zweite Zulaufdrossel mit der dem Druckraum abgewandten Seite der Ablaufdrossel verbunden ist. Mittels des elektromagnetischen Antriebs wird das Steuerventil derart betätigt, dass es den Druckraum über die Ablaufdrossel druckentlastet. Hierdurch sinkt an der Ventilnadel der Kraftstoffdruck, sodass sie sich in ihre Offenstellung bewegen und Kraftstoff eingespritzt werden kann. Um die Einspritzung zu beenden wird das Steuerventil erneut betätigt, wodurch die Druckentlastung beendet und der Druckraum über die erste Zulaufdrossel mit dem Kraftstoffdruck beaufschlagt. Da der Zulauf erfindungsgemäß über die zweite Zulaufdrossel mit der dem Druckraum abgewandten Seite der Ablaufdrossel verbunden ist, wird zusätzlich gleichzeitig unter Hochdruck stehender Kraftstoff über die zweite Zulaufdrossel und „rückwärts" über die Ablaufdrossel (also entgegen der Ablaufrichtung) in den Druckraum fließen, sodass sich der Kraftstoffdruck im Druckraum aufgrund der beiden Zulaufdrosseln sehr schnell aufbaut und demzufolge die Ventilnadel mit schneller Schließzeit exakt geschlossen wird. Erfindungsgemäß wird aufgrund der zweiten Zulaufdrossel somit eine Beschleunigung des Schließvorgangs herbeigeführt, sodass eine exakte, reproduzierbare Kraftstoffzumessung erfolgen kann.These Task is in a fuel injection valve mentioned above solved by that the inflow over a second inlet throttle with the side facing away from the pressure chamber the outlet throttle is connected. By means of the electromagnetic drive the control valve is operated in such a way that it's the pressure room over the outlet throttle relieves pressure. This reduces the valve needle the fuel pressure, so they move into their open position and Fuel can be injected. To finish the injection if the control valve is pressed again, whereby the pressure relief ended and the pressure chamber over the first supply throttle applied to the fuel pressure. Since the Feed according to the invention via the second inlet throttle with the pressure chamber facing away from the Outflow throttle is connected, is also simultaneously under high pressure standing over fuel the second inlet throttle and "backwards" via the outlet throttle (ie against the direction of flow) flow into the pressure chamber, so the fuel pressure in the pressure chamber due to the two inlet throttles builds up very quickly and therefore the valve needle with faster closing time is closed exactly. According to the invention is due to the second Inlet throttle thus accelerated the closing process brought about, so an exact, reproducible fuel metering can take place.
Nach einer Weiterbildung der Erfindung ist vorgesehen, dass die Ablaufdrossel in einem in Richtung der Längserstreckung des Gehäuses verlaufenden Ablaufkanal, insbesondere Ablaufbohrung, liegt. Damit lässt sich der Ablaufkanal sehr einfach, insbesondere als in Längserstreckung des Gehäuses verlaufende Ablaufbohrung bei der Herstellung des Kraftstoffeinspritzventils realisieren.To a development of the invention is provided that the outlet throttle in one in the direction of the longitudinal extent of the housing extending drainage channel, in particular drain hole is located. In order to let yourself the drainage channel very simple, especially as in the longitudinal direction of the housing extending drain hole in the manufacture of the fuel injection valve realize.
Der Ablaufkanal verläuft bevorzugt mittig im Gehäuse, d.h., er verläuft zur Mittellängsachse des Kraftstoffeinspritzventils, die entlang der Längserstreckung des Gehäuses verläuft, koaxial.Of the Drain channel runs preferably in the middle of the housing, that is, it runs to the central longitudinal axis of the fuel injection valve, along the longitudinal extent of the housing runs, coaxial.
Es ist von Vorteil, wenn der Ablaufkanal zu einem insbesondere einen Ventilraum aufweisenden Ventilsitz des Steuerventils führt. Bei dem Steuerventil handelt es sich um ein sogenanntes kraftausgeglichenes Ventil, das insbesondere über einen Druckstoß öffnet, wenn das Steuerventil minimal geöffnet ist. Der hohe Kraftstoffdruck, der bis zu 2.200 bar betragen kann, muss daher nicht von einem beweglichen Ventilteil des Steuerventils beherrscht werden.It is advantageous if the flow channel to a particular one Valve chamber having valve seat of the control valve leads. at The control valve is a so-called force-balanced Valve, in particular over opens a pressure shock, if the control valve is minimally open. The high fuel pressure, which can be up to 2,200 bar, must therefore not dominated by a movable valve member of the control valve become.
Nach einer Weiterbildung der Erfindung ist vorgesehen, dass der Ventilsitz des Steuerventils ein bewegliches Schließstück zugeordnet ist, das als Schließhülse ausgebildet ist. Bei der Schließhülse handelt es sich demzufolge um einen Hohlkörper, der zum Schließen des Steuerventils auf den Ventilsitz aufsetzt, sodass dieser quasi von dem Hohlkörper überspannt wird.To a development of the invention is provided that the valve seat the control valve is assigned a movable closing piece, which is designed as a closing sleeve is. When the locking sleeve acts It is therefore a hollow body, which is used to close the Control valve touches down on the valve seat, so that virtually from spans the hollow body becomes.
Nach einer Weiterbildung der Erfindung ist der elektromagnetische Antrieb mit einem Anker versehen, der mit der Schließhülse verbunden ist. Schließhülse und Anker können einstückig miteinander ausgebildet sein. Es ist jedoch alternativ auch möglich, dass Schließhülse und Anker separate Teile bilden, die miteinander verbunden sind. Es kann sich dabei insbesondere um eine lösbare Verbindung handeln.To a development of the invention is the electromagnetic drive provided with an anchor which is connected to the closing sleeve. Locking sleeve and Anchor can one piece be formed with each other. However, it is alternatively possible that Locking sleeve and Anchor separate parts that are interconnected. It This may in particular be a detachable connection.
Vorzugsweise ist der Anker als Ringanker ausgebildet, der eine Erregeranordnung umgreift. Bei der Erregeranordnung handelt es sich um einen Elektromagneten, der vom Ringanker umgriffen wird.Preferably the armature is designed as a ring armature, which has an exciter arrangement embraces. The exciter arrangement is an electromagnet, which is encompassed by the ring anchor.
Alternativ ist es möglich, dass der Anker als Stabanker ausgebildet ist und in eine Kammer eine Erregeranordnung eingreift. Auch hier erfolgt eine Verlagerung des Ankers durch elektromagnetische Wirkung, indem eine Spulenanordnung der Erregeranordnung bestromt wird.Alternatively, it is possible that the anchor is designed as a rod anchor and in a chamber Exciter arrangement engages. Here, too, a displacement of the armature by electromagnetic effect by a coil assembly of the exciter assembly is energized.
Schließlich ist von Vorteil, wenn die Ablaufdrossel, die erste Zulaufdrossel und/oder die zweite Zulaufdrossel insbesondere gemeinsam in einem Zwischenboden des Gehäuses ausgebildet sind. Im Zwischenboden werden bevorzugt mittels entsprechender Bohrungen mit jeweils gewünschten Durchmessern die Drosseln erzeugt. Der Zwischenboden wird dann in das Innere des Gehäuses eingesetzt, wodurch sich der Anschluss der Drosseln ergibt.Finally is advantageous if the outlet throttle, the first inlet throttle and / or the second inlet throttle in particular together in an intermediate floor of the housing are formed. In the intermediate floor are preferred by means of appropriate Holes with each desired Diameters produced by the throttles. The intermediate floor is then in the interior of the case used, resulting in the connection of the chokes.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Die Zeichnungen veranschaulichen die Erfindung anhand von zwei Ausführungsbeispielen und zwar zeigt:The Drawings illustrate the invention with reference to two exemplary embodiments and that shows:
Ausführungsform(en) der ErfindungEmbodiment (s) the invention
Die
Das
Gehäuse
Der
elektromagnetische Antrieb
Der
Tragboden
Es
ergibt sich folgende Funktion: Soll zum Einspritzen von Kraftstoff
das Kraftstoffeinspritzventil
Die
Claims (11)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610049883 DE102006049883A1 (en) | 2006-10-23 | 2006-10-23 | Fuel injecting valve for internal-combustion engine, has housing with inlet connected with side of draining throttle over inlet throttle, where side is turned away from chamber that is connected with inlet over another inlet throttle |
EP07115065A EP1918569A3 (en) | 2006-10-23 | 2007-08-28 | Fuel injection valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610049883 DE102006049883A1 (en) | 2006-10-23 | 2006-10-23 | Fuel injecting valve for internal-combustion engine, has housing with inlet connected with side of draining throttle over inlet throttle, where side is turned away from chamber that is connected with inlet over another inlet throttle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006049883A1 true DE102006049883A1 (en) | 2008-04-24 |
Family
ID=39110880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610049883 Withdrawn DE102006049883A1 (en) | 2006-10-23 | 2006-10-23 | Fuel injecting valve for internal-combustion engine, has housing with inlet connected with side of draining throttle over inlet throttle, where side is turned away from chamber that is connected with inlet over another inlet throttle |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1918569A3 (en) |
DE (1) | DE102006049883A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106593724A (en) * | 2017-01-18 | 2017-04-26 | 哈尔滨工程大学 | Bypass type electronic controlled injector with hydraulic feedback function |
CN106640453A (en) * | 2017-01-18 | 2017-05-10 | 哈尔滨工程大学 | Micro-dynamic oil-returning electric control oil sprayer with hydraulic feedback |
CN106762279A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of resonance bypass type electric-controlled fuel injector with hydraulic feedback |
CN106762286A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of On Fluctuations oil return bypass type electric-controlled fuel injector with hydraulic feedback |
CN106762281A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of electric-controlled fuel injector with hydraulic feedback |
CN106762287A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of resonance orifice-plate type electric-controlled fuel injector with hydraulic feedback |
CN106762278A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of On Fluctuations oil return resonance bypass type electric-controlled fuel injector with hydraulic feedback |
CN106762288A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of pressure accumulation orifice-plate type electric-controlled fuel injector with hydraulic feedback |
CN107035586A (en) * | 2017-01-18 | 2017-08-11 | 哈尔滨工程大学 | A kind of On Fluctuations oil return resonant mode electric-controlled fuel injector with hydraulic feedback |
CN108131230A (en) * | 2017-12-26 | 2018-06-08 | 南岳电控(衡阳)工业技术股份有限公司 | A kind of diesel engine high-pressure co-rail heavy-duty machinery fuel injector |
CN114076058A (en) * | 2021-12-15 | 2022-02-22 | 北油电控燃油喷射系统(天津)有限公司 | Large-flow oil injector with central solenoid valve |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10024702A1 (en) * | 2000-05-18 | 2001-11-22 | Bosch Gmbh Robert | Fuel injector for storage injection system includes bypass channel injecting into outlet path at valve chamber |
DE10145622B4 (en) * | 2001-09-15 | 2009-09-10 | Robert Bosch Gmbh | Valve for controlling fluids |
DE10326260A1 (en) * | 2003-06-11 | 2005-01-05 | Robert Bosch Gmbh | Fuel injection valve and method for its control |
DE102004030445A1 (en) * | 2004-06-24 | 2006-01-12 | Robert Bosch Gmbh | Fuel injector |
ES2277229T3 (en) * | 2004-06-30 | 2007-07-01 | C.R.F. Societa Consortile Per Azioni | SERVOVALVULA TO CONTROL THE FUEL INJECTOR OF AN INTERNAL COMBUSTION ENGINE. |
-
2006
- 2006-10-23 DE DE200610049883 patent/DE102006049883A1/en not_active Withdrawn
-
2007
- 2007-08-28 EP EP07115065A patent/EP1918569A3/en not_active Withdrawn
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106762278A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of On Fluctuations oil return resonance bypass type electric-controlled fuel injector with hydraulic feedback |
CN106593724A (en) * | 2017-01-18 | 2017-04-26 | 哈尔滨工程大学 | Bypass type electronic controlled injector with hydraulic feedback function |
CN106762279A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of resonance bypass type electric-controlled fuel injector with hydraulic feedback |
CN106762286A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of On Fluctuations oil return bypass type electric-controlled fuel injector with hydraulic feedback |
CN106762281A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of electric-controlled fuel injector with hydraulic feedback |
CN106762287A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of resonance orifice-plate type electric-controlled fuel injector with hydraulic feedback |
CN106640453A (en) * | 2017-01-18 | 2017-05-10 | 哈尔滨工程大学 | Micro-dynamic oil-returning electric control oil sprayer with hydraulic feedback |
CN106762288A (en) * | 2017-01-18 | 2017-05-31 | 哈尔滨工程大学 | A kind of pressure accumulation orifice-plate type electric-controlled fuel injector with hydraulic feedback |
CN107035586B (en) * | 2017-01-18 | 2023-01-03 | 哈尔滨工程大学 | Micro-dynamic oil return resonant type electric control oil injector with hydraulic feedback |
CN106640453B (en) * | 2017-01-18 | 2023-01-03 | 哈尔滨工程大学 | Micro-dynamic oil return electric control oil injector with hydraulic feedback |
CN107035586A (en) * | 2017-01-18 | 2017-08-11 | 哈尔滨工程大学 | A kind of On Fluctuations oil return resonant mode electric-controlled fuel injector with hydraulic feedback |
CN108131230A (en) * | 2017-12-26 | 2018-06-08 | 南岳电控(衡阳)工业技术股份有限公司 | A kind of diesel engine high-pressure co-rail heavy-duty machinery fuel injector |
CN108131230B (en) * | 2017-12-26 | 2024-03-08 | 南岳电控(衡阳)工业技术股份有限公司 | High-pressure common rail heavy mechanical oil sprayer of diesel engine |
CN114076058A (en) * | 2021-12-15 | 2022-02-22 | 北油电控燃油喷射系统(天津)有限公司 | Large-flow oil injector with central solenoid valve |
Also Published As
Publication number | Publication date |
---|---|
EP1918569A2 (en) | 2008-05-07 |
EP1918569A3 (en) | 2008-12-24 |
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Legal Events
Date | Code | Title | Description |
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R012 | Request for examination validly filed |
Effective date: 20130711 |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |