[go: up one dir, main page]

EP2840251B1 - Injector bore ring - Google Patents

Injector bore ring Download PDF

Info

Publication number
EP2840251B1
EP2840251B1 EP14002306.0A EP14002306A EP2840251B1 EP 2840251 B1 EP2840251 B1 EP 2840251B1 EP 14002306 A EP14002306 A EP 14002306A EP 2840251 B1 EP2840251 B1 EP 2840251B1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
support ring
tmf
injector
head according
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.)
Active
Application number
EP14002306.0A
Other languages
German (de)
French (fr)
Other versions
EP2840251A1 (en
Inventor
Jens Ehle
Raimund Ponsa
Wilhelm Feuser
Slawomir Fukacz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutz AG
Original Assignee
Deutz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutz AG filed Critical Deutz AG
Publication of EP2840251A1 publication Critical patent/EP2840251A1/en
Application granted granted Critical
Publication of EP2840251B1 publication Critical patent/EP2840251B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
    • 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
    • F02M2200/85—Mounting of fuel injection apparatus
    • F02M2200/858—Mounting of fuel injection apparatus sealing arrangements between injector and engine
    • 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
    • F02M2200/90—Selection of particular materials
    • F02M2200/9053—Metals

Definitions

  • the invention relates to an injector bore ring.
  • the object of the present invention is to provide a solution with which the stresses in the injector bore or in the valve webs can be influenced in a targeted manner in order to minimize the risk of TMF cracks.
  • the object of the present invention is achieved by countersinking and inserting an injector bore ring (TMF support ring) in the region of the injector bore of the cylinder head, as defined in claim 1.
  • TMF support ring injector bore ring
  • the geometry of the ring and the selection of the material (modulus of elasticity, strength) and the press-in oversize have a decisive influence on the success of this measure and are to be defined individually as design parameters, so that the local stresses in the cylinder head of an internal combustion engine are reduced and the thermomechanical damage minimized.
  • a bore in the base plate of the cylinder head is provided on the cylinder head of an internal combustion engine with direct fuel injection for positioning and for introducing the injector into the combustion chamber.
  • TMF support ring which surrounds the injector bore provided in the cylinder head base plate and which allows the local rigidity to be influenced in a targeted manner.
  • a depression is made on the injector bore, into which this ring is inserted and held by means of frictional engagement (press fit).
  • An alternative embodiment provides for the ring to be used directly during casting and to be connected to the cylinder head via a positive fit.
  • the geometry of the ring, the selection of the material (modulus of elasticity, strength) and, if applicable, the choice of the press-in oversize have a decisive influence on the success of this measure and are to be defined individually as design parameters.
  • these parameters are selected so that the locally high load is borne by the injector bore ring (support ring) and the Cylinder head structure is relieved compared to the situation without a support ring. This increases the service life in the area of the injector bore.
  • the material and press fit of the ring must be selected so that on the one hand an adequate support effect is achieved, but on the other hand no excessive tensile stresses occur in the ring seat of the cylinder head, which in turn has a counterproductive effect on the operational strength.
  • the injector bore ring can also be used in a possible embodiment variant as a "soft" ring to adjust the rigidity of the base plate and to reduce this in a targeted manner. In this case, the thermal expansion hindrance and the mechanical stress on the valve webs are reduced. This increases the service life in the area of the valve lands.
  • FIG 1 shows a typical application in a cylinder head which is designed with an injector sleeve.
  • the section line AA runs in Figure 2 is shown
  • Figure 2 a detail B that is in the Figure 3 is disclosed.
  • FIG 3 the cylinder head with the injector sleeve 3 is shown.
  • a so-called TMF support ring 2 is arranged concentrically around the injector sleeve 3 in such a way that it is essentially flush with the end of the injector sleeve 3 protruding into the combustion chamber and the cylinder head base plate.
  • Figure 4 shows an example of a base plate of a cylinder head and the typical areas exposed to TMF.
  • the injector bore 1 and the valve webs 2 can be seen.
  • Suitable materials for the injector bore ring include steel, aluminum alloys or copper or copper alloys.
  • Figure 5 shows a bottom plate of the cylinder head in a sectional view with the injector bore and a depression arranged on the combustion chamber end of the injector bore for receiving the injector bore ring.
  • FIG. 7 issues detail A.
  • Figure 6 In detail A from Figure 6 the cylinder head 1 with the injector sleeve 3 is shown.
  • a so-called TMF support ring 2 which is also referred to as injector bore ring 2, is arranged concentrically around the injector sleeve 3 in such a way that it is essentially flush with the end of the injector sleeve 3 which projects into the combustion chamber and the cylinder head base plate.
  • Figure 8 are typical dimensions of the injector bore ring 2 Figure 7 shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

Die Erfindung betrifft einen Injektorbohrungsring.The invention relates to an injector bore ring.

Aus dem Stand der Technik ist bekannt, dass die Führung des Injektors mit Hilfe eines im Zylinderkopf integrierten Injektordoms (wie in der WO2006/072333A1 veröffentlicht) oder mit Hilfe einer separaten Hülse (z.B. aus Kupfer oder Stahl, wie in der DE 10 2010 033 710 A1 veröffentlicht) erfolgt. Im ersten Fall sind die Maße der erforderlichen Bohrung in der Bodenplatte durch den Außendurchmesser des Injektor-Düsenelementes gegeben; im zweiten Fall sind die Maße der Bohrung durch den Außendurchmesser der verwendeten Hülse gegeben. Nachteilig daran ist, dass in beiden Fällen der Bohrungsdurchmesser und damit ein wichtiger Einflussparameter der lokalen Steifigkeit der Bodenplatte nicht oder nur sehr geringfügig variiert werden kann.From the prior art it is known that the guide of the injector with the help of an injector dome integrated in the cylinder head (as in the WO2006 / 072333A1 published) or with the help of a separate sleeve (e.g. made of copper or steel, as in the DE 10 2010 033 710 A1 published). In the first case, the dimensions of the required hole in the base plate are given by the outer diameter of the injector nozzle element; in the second case, the dimensions of the bore are given by the outer diameter of the sleeve used. The disadvantage of this is that in both cases the bore diameter and thus an important influencing parameter of the local rigidity of the base plate cannot be varied or can only be varied very slightly.

Weiterhin ist bekannt, dass im Einsatz der Verbrennungskraftmaschine an der Bodenplatte des Zylinderkopfes hohe wechselnde Beanspruchungen durch das Aufheizen und Abkühlen des Aggregats auftreten. Die lokalen Beanspruchungen sind von der Temperaturlast des Zylinderkopfes und der Steifigkeitsverteilung innerhalb der Bodenplatte abhängig und können zu Anrissen infolge einer thermomechanischen Ermüdung (Thermo Mechanical Fatigue TMF) führen. Besonders gefährdet hinsichtlich derartiger Anrisse sind die Stegbereiche zwischen zwei Ventilen und der Bereich der Injektorbohrung.Furthermore, it is known that when the internal combustion engine is used, high alternating stresses occur on the base plate of the cylinder head due to the heating and cooling of the unit. The local stresses depend on the temperature load of the cylinder head and the stiffness distribution within the base plate and can lead to cracks due to thermomechanical fatigue (Thermo Mechanical Fatigue TMF). The web areas between two valves and the area of the injector bore are particularly at risk with regard to such cracks.

Die Aufgabe der vorliegenden Erfindung ist es, eine Lösung bereitzustellen, mit der die Beanspruchungen in der Injektorbohrung bzw. in den Ventilstegen gezielt beeinflusst werden können, um das Risiko von TMF-Anrissen zu minimieren.The object of the present invention is to provide a solution with which the stresses in the injector bore or in the valve webs can be influenced in a targeted manner in order to minimize the risk of TMF cracks.

Die Aufgabe der vorliegenden Erfindung wird durch eine Einsenkung und ein Einsetzen eines Injektorbohrungsrings (TMF-Stützring) im Bereich der Injektorbohrung des Zylinderkopfes, wie im Anspruch 1 definiert, gelöst. Die Geometrie des Ringes und die Auswahl des Werkstoffes (E-Modul, Festigkeit) und des Einpressübermaßes haben einen entscheidenden Einfluss auf den Erfolg dieser Maßnahme und sind als Auslegungsparameter jeweils individuell festzulegen, so dass sich die lokalen Beanspruchungen in dem Zylinderkopf einer Verbrennungskraftmaschine reduzieren und die thermomechanische Schädigung minimiert. An dem Zylinderkopf einer Verbrennungskraftmaschine mit direkter Kraftstoffeinspritzung wird zur Positionierung und zur Einführung des Injektors in den Brennraum eine Bohrung in der Bodenplatte des Zylinderkopfes vorgesehen.The object of the present invention is achieved by countersinking and inserting an injector bore ring (TMF support ring) in the region of the injector bore of the cylinder head, as defined in claim 1. The geometry of the ring and the selection of the material (modulus of elasticity, strength) and the press-in oversize have a decisive influence on the success of this measure and are to be defined individually as design parameters, so that the local stresses in the cylinder head of an internal combustion engine are reduced and the thermomechanical damage minimized. A bore in the base plate of the cylinder head is provided on the cylinder head of an internal combustion engine with direct fuel injection for positioning and for introducing the injector into the combustion chamber.

In einer weiteren vorteilhaften Weiterbildung ist vorgesehen, einen Injektorbohrungsring (TMF-Stützring) zu verwenden, der die in der Zylinderkopfbodenplatte vorgesehene Injektorbohrung umschließt und der eine gezielte Beeinflussung der lokalen Steifigkeit erlaubt.In a further advantageous development it is provided to use an injector bore ring (TMF support ring) which surrounds the injector bore provided in the cylinder head base plate and which allows the local rigidity to be influenced in a targeted manner.

An der Injektorbohrung wird hierzu eine Einsenkung gefertigt, in die dieser Ring eingesetzt und mittels Reibschluss gehalten wird (Presspassung). Eine alternative Ausgestaltung sieht vor, den Ring unmittelbar beim Gießen einzusetzen und über Formschluss mit dem Zylinderkopf zu verbinden.For this purpose, a depression is made on the injector bore, into which this ring is inserted and held by means of frictional engagement (press fit). An alternative embodiment provides for the ring to be used directly during casting and to be connected to the cylinder head via a positive fit.

Die Geometrie des Ringes, die Auswahl des Werkstoffes (E-Modul, Festigkeit) und ggf. die Wahl des Einpressübermaßes haben einen entscheidenden Einfluss auf den Erfolg dieser Maßnahme und sind als Auslegungsparameter jeweils individuell festzulegen.The geometry of the ring, the selection of the material (modulus of elasticity, strength) and, if applicable, the choice of the press-in oversize have a decisive influence on the success of this measure and are to be defined individually as design parameters.

Weitere vorteilhafte Ausgestaltungen sind in den Unteransprüchen enthalten.Further advantageous refinements are contained in the subclaims.

Um die mechanischen Beanspruchungen im Bereich der Injektorbohrung zu reduzieren, werden diese Parameter so gewählt, dass die örtlich hohe Belastung von dem Injektorbohrungsring (Stützring) getragen wird und die Zylinderkopfstruktur im Vergleich zu der Situation ohne Stützring entlastet wird. Die Lebensdauer im Bereich der Injektorbohrung wird dadurch erhöht. Werkstoff und Einpressübermaß des Ringes sind in diesem Fall so auszuwählen, dass einerseits eine ausreichende Stützwirkung erzielt wird, andererseits aber keine übermäßigen Zugspannungen in der Ringaufnahme des Zylinderkopfes entstehen, die sich wiederum kontraproduktiv auf die Betriebsfestigkeit auswirkt.In order to reduce the mechanical stresses in the area of the injector bore, these parameters are selected so that the locally high load is borne by the injector bore ring (support ring) and the Cylinder head structure is relieved compared to the situation without a support ring. This increases the service life in the area of the injector bore. In this case, the material and press fit of the ring must be selected so that on the one hand an adequate support effect is achieved, but on the other hand no excessive tensile stresses occur in the ring seat of the cylinder head, which in turn has a counterproductive effect on the operational strength.

Um die mechanischen Beanspruchungen in den Ventilstegen zu reduzieren, kann der Injektorbohrungsring in einer möglichen Ausführungsvariante als "weicher" Ring auch dazu verwendet werden, die Steifigkeit der Bodenplatte einzustellen und diese gezielt zu verringern. In diesem Fall wird die thermische Dehnungsbehinderung und die mechanische Beanspruchung der Ventilstege reduziert. Die Lebensdauer im Bereich der Ventilstege wird dadurch erhöht.In order to reduce the mechanical stresses in the valve webs, the injector bore ring can also be used in a possible embodiment variant as a "soft" ring to adjust the rigidity of the base plate and to reduce this in a targeted manner. In this case, the thermal expansion hindrance and the mechanical stress on the valve webs are reduced. This increases the service life in the area of the valve lands.

Weitere Merkmale der Erfindung ergeben sich aus der folgenden Beschreibung und den Zeichnungen, auf denen ein Ausführungsbeispiel dargestellt ist.Further features of the invention will become apparent from the following description and the drawings, on which an embodiment is shown.

Es zeigen:

Figur 1
Zylinderkopf mit einer Injektorhülse
Figur 2
den Schnitt A-A aus Figur 1
Figur 3
das Detail B aus Figur 1
Figur 4
das Beispiel einer Bodenplatte eines Zylinderkopfs und der typischen TMF-gefährdeten Bereiche
Figur 5
die Bodenplatte des Zylinderkopfes in Schnittdarstellung
Figur 6
die Bodenplatte des Zylinderkopfs mit Injektorbohrungsring und Injektorhülse
Figur 7
das Detail A aus Figur 6
Figur 8
die Proportionen des geschnittenen Injektorbohrungsring
Show it:
Figure 1
Cylinder head with an injector sleeve
Figure 2
the section AA Figure 1
Figure 3
the detail B. Figure 1
Figure 4
the example of a base plate of a cylinder head and the typical areas exposed to TMF
Figure 5
the bottom plate of the cylinder head in a sectional view
Figure 6
the bottom plate of the cylinder head with injector bore ring and injector sleeve
Figure 7
the detail A. Figure 6
Figure 8
the proportions of the cut injector bore ring

Figur 1 zeigt eine typische Anwendung bei einem Zylinderkopf, der mit einer Injektorhülse ausgeführt ist. Durch die Injektorbohrung hindurch verläuft die Schnittlinie A-A, die in Figur 2 dargestellt wird.Weiter zeigt Figur 2 ein Detail B, das in der Figur 3 offenbart wird. In Detail B in Figur 3 wird der Zylinderkopf mit der Injektorhülse 3 gezeigt. Um die Injektorhülse 3 herum ist ein sogenannter TMF-Stützring 2 konzentrisch so angeordnet, dass er mit dem in den Brennraum ragenden Ende der Injektorhülse 3 und dem Zylinderkopfbodenplatte im Wesentlichen bündig abschliesst. Figure 1 shows a typical application in a cylinder head which is designed with an injector sleeve. Through the injector bore the section line AA runs in Figure 2 is shown Figure 2 a detail B that is in the Figure 3 is disclosed. In detail B in Figure 3 the cylinder head with the injector sleeve 3 is shown. A so-called TMF support ring 2 is arranged concentrically around the injector sleeve 3 in such a way that it is essentially flush with the end of the injector sleeve 3 protruding into the combustion chamber and the cylinder head base plate.

Figur 4 zeigt ein Beispiel einer Bodenplatte eines Zylinderkopfes und der typischen TMF-gefährdeten Bereiche. Zu sehen sind die Injektorbohrung 1 und die Ventilstege 2. Figure 4 shows an example of a base plate of a cylinder head and the typical areas exposed to TMF. The injector bore 1 and the valve webs 2 can be seen.

Geeignete Werkstoffe für den Injektorbohrungsring sind unter anderem Stähle, Aluminiumlegierungen oder Kupfer bzw. Kupferlegierungen.Suitable materials for the injector bore ring include steel, aluminum alloys or copper or copper alloys.

Figur 5 zeigt eine Bodenplatte des Zylinderkopfes in Schnittdarstellung mit der Injektorbohrung und einer am brennraumseitigen Ende der Injektorbohrung angeordneten Einsenkung zur Aufnahme des Injektorbohrungsrings. Figure 5 shows a bottom plate of the cylinder head in a sectional view with the injector bore and a depression arranged on the combustion chamber end of the injector bore for receiving the injector bore ring.

In Figur 6 wird eine Bodenplatte des Zylinderkopfes mit einem Injektorbohrungsring und einer Injektorhülse im Detail A dargestellt, das in der folgenden Figur 7 detailreicher offenbart wird.In Figure 6 a bottom plate of the cylinder head with an injector bore ring and an injector sleeve is shown in detail A, the following Figure 7 is revealed in more detail.

Figur 7 stellt das Detail A aus Figur 6 dar. In Detail A aus Figur 6 wird der Zylinderkopf 1 mit der Injektorhülse 3 gezeigt. Um die Injektorhülse 3 herum ist ein sogenannter TMF-Stützring 2, der auch als Injektorbohrungsring 2 bezeichnet wird konzentrisch so angeordnet, dass er mit dem in den Brennraum ragenden Ende der Injektorhülse 3 und dem Zylinderkopfbodenplatte im Wesentlichen bündig abschließt. Figure 7 issues detail A. Figure 6 In detail A from Figure 6 the cylinder head 1 with the injector sleeve 3 is shown. A so-called TMF support ring 2, which is also referred to as injector bore ring 2, is arranged concentrically around the injector sleeve 3 in such a way that it is essentially flush with the end of the injector sleeve 3 which projects into the combustion chamber and the cylinder head base plate.

In Figur 8 werden typische Abmessungen des Injektorbohrungsringes 2 aus Figur 7 dargestellt.In Figure 8 are typical dimensions of the injector bore ring 2 Figure 7 shown.

Claims (7)

  1. Cylinder head for an internal combustion engine which comprises a crankcase and, rotatably mounted therein, a crankshaft on which connecting rods each connected to a piston are articulated, wherein the piston is movable in a cylinder covered by the cylinder head with the formation of a combustion chamber, comprising at least one camshaft which, for each cylinder, controls at least one gas exchange valve, in particular an inlet valve and an outlet valve, wherein an injector can be inserted into a central aperture which is formed as a region separate from lubricating-oil-guiding and/or coolant-guiding spaces, wherein the aperture extends from the combustion chamber through the cylinder head, and wherein the injector dome is guided by means of a separate sleeve (3), characterized in that, in the region of the cylinder head that faces the combustion chamber, a TMF support ring [injector bore ring; thermomechanical fatigue (TMF)] is arranged concentrically around the injector sleeve (3) in such a way that it terminates substantially flush with the end of the injector sleeve (3) that projects into the combustion chamber and with the cylinder head base plate.
  2. Cylinder head according to one or more of the preceding claims, characterized in that the TMF support ring is formed from copper.
  3. Cylinder head according to one or more of the preceding claims, characterized in that the TMF support ring is formed from aluminium.
  4. Cylinder head according to one or more of the preceding claims, characterized in that the TMF support ring is formed from steel.
  5. Cylinder head according to one or more of the preceding claims, characterized in that the TMF support ring is formed from an alloy.
  6. Cylinder head according to one or more of the preceding claims, characterized in that the ratio of outside diameter of the support ring to inside diameter of the support ring lies substantially in a range from 1.25 to 2.1, and the height of the support ring is approximately 0.4 to 1.4 times the inside diameter of the support ring.
  7. Cylinder head according to one or more of the preceding claims, characterized in that the TMF support ring is designed to be welded, brazed, shrink-fitted, adhesively bonded or sintered.
EP14002306.0A 2013-08-07 2014-07-05 Injector bore ring Active EP2840251B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013013090.5A DE102013013090A1 (en) 2013-08-07 2013-08-07 Injektorbohrungsring

Publications (2)

Publication Number Publication Date
EP2840251A1 EP2840251A1 (en) 2015-02-25
EP2840251B1 true EP2840251B1 (en) 2019-12-18

Family

ID=51205128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14002306.0A Active EP2840251B1 (en) 2013-08-07 2014-07-05 Injector bore ring

Country Status (2)

Country Link
EP (1) EP2840251B1 (en)
DE (1) DE102013013090A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191515151A (en) * 1915-10-26 1916-01-06 Marc Birkigt Improvements in or relating to Fluid-tight Joints.
WO2006084915A1 (en) * 2005-02-14 2006-08-17 Siemens Aktiengesellschaft Injection valve for injecting fuel and cylinder head

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19548088C1 (en) * 1995-12-21 1997-07-17 Daimler Benz Ag Cylinder head for an internal combustion engine
DE10027669A1 (en) * 2000-06-03 2001-12-06 Bosch Gmbh Robert Fixing device for fuel injection valve has at least one sealing element in region of step in bush
DE10259559A1 (en) * 2002-12-19 2004-07-15 Mtu Friedrichshafen Gmbh Fuel injection valve incorporated in IC engine cylinder head has sealing device around injection jet for preventing escape of combustion gases from combustion chamber
DE102007034611A1 (en) * 2007-07-25 2009-01-29 Robert Bosch Gmbh Device for fastening fuel injectors
AT505049B1 (en) * 2008-06-05 2009-10-15 Avl List Gmbh INTERNAL COMBUSTION ENGINE WITH A CYLINDER HEAD
US9382887B2 (en) * 2009-09-23 2016-07-05 Cummins Intellectual Property. Inc. Engine component seal assembly and method of sealing a coolant passage from an engine component
DE102010033710A1 (en) * 2010-08-06 2012-02-09 Deutz Ag cylinder head
EP2636880A1 (en) * 2012-03-06 2013-09-11 Delphi Automotive Systems Luxembourg SA Injector tip seal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191515151A (en) * 1915-10-26 1916-01-06 Marc Birkigt Improvements in or relating to Fluid-tight Joints.
WO2006084915A1 (en) * 2005-02-14 2006-08-17 Siemens Aktiengesellschaft Injection valve for injecting fuel and cylinder head

Also Published As

Publication number Publication date
DE102013013090A1 (en) 2015-02-12
EP2840251A1 (en) 2015-02-25

Similar Documents

Publication Publication Date Title
AT517601B1 (en) Cylinder liner for an internal combustion engine
EP2638379B1 (en) Device for friction measurement
CH697316B1 (en) Distributor for a radial turbine.
EP0961025A1 (en) Fuel injection nozzle
EP1819920B1 (en) Piston for a combustion engine
WO2006056315A1 (en) Piston with a lightweight construction that is subjected to high thermal stress
DE102012203570A1 (en) Cast light metal piston, especially an aluminum piston
EP2938874B1 (en) Valve arrangement
EP2840251B1 (en) Injector bore ring
DE2727006A1 (en) IC piston engine exhaust valve - has interconnected cooling chambers in welded shaft, and disc with radial bores to periphery
WO1997028355A1 (en) Pushrod for the valve gear mechanism of an internal combustion engine
DE3627505C2 (en) Automatically hydraulic valve lifter
AT522801B1 (en) COMBUSTION ENGINE
DE102016208907A1 (en) Arc-shaped thrust washer for a cylinder crankcase of a reciprocating internal combustion engine
EP1479903B1 (en) Piston pump, in particular high pressure fuel pump
DE102005037383A1 (en) Cylinder head for internal combustion (IC) engine of motor vehicle, has base and head parts made of ferric metal and light alloy, respectively
EP0580651B1 (en) Internal-combustion engine
EP1076770B1 (en) Fuel injection valve for internal combustion engines
DE3236354A1 (en) Axially reciprocating component, acted upon directly by combustion heat and provided with a heat shield, of a reciprocating internal combustion engine
AT526527B1 (en) Liquid-cooled internal combustion engine
DE10357860A1 (en) Internal combustion engine has relief slots formed in flat plate between ports for exhaust valve, intake valve and injector device, in which plate is disposed adjacent combustion chamber and between cylinder head and cylinder
DE102007034845A1 (en) Valve train for activating charge-cycle valve of internal combustion engine, has mechanical valve clearance setting, comprising rigidly designed supporting element, which is arranged in hollow cylindrical recess
AT522190B1 (en) Bearing cap
EP1706633B1 (en) Injector comprising a clamping device to be mounted in a cylinder head, and clamping device
DE10221731A1 (en) Sealing system for cylinder liner has thin metallic ring between shoulder at top of liner and in bore in cylinder block, with ring thickness varying around its circumference

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140705

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

R17P Request for examination filed (corrected)

Effective date: 20150806

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

17Q First examination report despatched

Effective date: 20160705

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190717

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502014013259

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1214870

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200115

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200318

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200319

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200318

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200513

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200418

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502014013259

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

26N No opposition filed

Effective date: 20200921

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200705

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200731

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200705

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230530

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20240628

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20240719

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240731

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20240725

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240730

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20240722

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240719

Year of fee payment: 11

Ref country code: SE

Payment date: 20240719

Year of fee payment: 11