WO2014173402A1 - Switchable support element - Google Patents
Switchable support element Download PDFInfo
- Publication number
- WO2014173402A1 WO2014173402A1 PCT/DE2014/200065 DE2014200065W WO2014173402A1 WO 2014173402 A1 WO2014173402 A1 WO 2014173402A1 DE 2014200065 W DE2014200065 W DE 2014200065W WO 2014173402 A1 WO2014173402 A1 WO 2014173402A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- bore
- extended position
- support element
- ring
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
- F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
- F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0005—Deactivating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/185—Overhead end-pivot rocking arms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2307/00—Preventing the rotation of tappets
Definitions
- the invention relates to a switchable support member for a valve train of an internal combustion engine, with an insertable into a receptacle of a cylinder head of the internal combustion engine housing, in the bore an axially movable, from the housing acted upon by a spring means inner member sits, wherein in a radial bore of the inner member at least one Coupling slide extends, which is engageable in an axially extended position with a cam surface of the housing in engagement, wherein the extended position is limited by a height stop means and wherein an outer casing of the housing is surmounted by a projection for representing an outer anti-rotation.
- the clip is exposed to enormous loads during operation.
- the expert recognizes that the already thin-walled inner element is weakened because of the representation of the inner anti-rotation (Leksanflachungen) and loses leadership and sealing length.
- a simple adjustment of the axially extended position of the inner element [coupling play] is also not possible because the clip may need to be disassembled after determining an actual game again.
- switchable support elements are previously known, whose outer locking device is realized by means of a pin located in a window of the housing. The latter may possibly be solved during operation. In addition, it may be deformed during assembly of the housing.
- this object is achieved in that as a height stop means at least one on a housing-side annular shoulder of the inner member circumferential snap ring is applied, which abuts radially outwardly and partially at least indirectly via the upper annular end to a lower ring edge of an annular groove of the housing in the attack case, said the snap ring is stacked with a circulating ring with a de-centered bore, from which circumferential race a tongue as the projection projects radially outwardly through a segment-like recess extending from an upper annular end of the housing recess of the housing.
- the at least one snap ring possibly with voltage-reducing wave profile on the lateral surfaces, can be mounted very easily.
- the inner element has sufficient guidance and sealing length.
- the circulating ring can be designed as a simple stamped sheet metal part.
- the assembly Partly thick constant circumferential rings and thickness-grouped snap rings for setting the height stop [coupling play] held, in which case the respective snap ring is preferably mounted above lying. It is advantageous to mount exactly two snap rings, which sandwich the circulating ring, in which case only the upper snap ring serves a fine adjustment of the coupling play.
- the measures according to the invention can also be applied to roller tappets.
- FIG. 1 shows a longitudinal section through a switchable support element, transverse to its coupling slides;
- FIG. 2 shows a plan view of the support element with a second, upper snap ring, and
- FIG. 3 shows an enlarged plan view of the support element with a circulation ring.
- FIG. 1 shows a switchable support element 1 for a valve drive of an internal combustion engine, transverse to its two coupling slides 9 (see DE 102 04 672 A1), so that they can not be seen more accurately in their longitudinal extent within their radial bore 8.
- the support element 1 has a cup-shaped housing 4 made of sheet metal, which is incorporated into a receptacle 2 of a cylinder head 3 of the internal combustion engine indicated here.
- a bore 5 of the housing 4 extends an axially movable, out of the housing 4 out by a spring means 6 (helical compression spring pact) acted upon inner element 7 with a head 27.
- the latter serves a one-end support of a finger lever.
- the coupling slide 9 are located in the radial bore 8 diametrically opposite. They are in the illustrated axially extended position of the inner member 7 with a cam surface of the housing 4 in engagement, so that the valve lift is completed.
- a height stop means 10 which in this case consists of two snap rings.
- the latter run on a housing-side annular shoulder 13 of the inner member 7, wherein the upper of the snap rings 10 strikes radially outwardly in sections over the upper annular end 14 at a lower ring edge 15 of an annular groove 16 of the housing 4.
- a circular ring 18 with a sunken hole 17 recorded, so that this does not twist can.
- a tongue projects as a projection 12 radially outwardly in one piece.
- the projection 12 in this case passes through a segment-like, emanating from an upper annular end 19 of the housing 4 recess 20 of the housing 4.
- the upper snap ring 10 is grouped in thicknesses and paired.
- the upper snap ring 10 is provided at its inner edge 21 with a flattening 22 (the lower, not apparent snap ring 10 also).
- the flattening 22 abuts a flat 24 of an outer shell 23 of the inner member 7 to form an inner anti-rotation.
- Free ends 25 of the snap ring 10 are angled radially outward and extend to legs 26 of the recess 20 of the housing 4th
Abstract
The invention relates to a switchable support element (1) for a valve train of an internal combustion engine, comprising a housing (4), in the bore (5) of which rests an axially movable inner element (7), wherein at least one coupling slide (9) runs in a radial bore (8) of the inner element (7) and in an axially extended position can be brought into engagement with a driver surface of the housing (4), wherein the extended position is limited by means of a height stop means (10), wherein a projection (12) protrudes beyond an outer casing (11) of the housing (4) to provide an outer anti-torsion mechanism, wherein as height stop means (10) at least one circlip is applied, which runs around on a housing-side annular shoulder (13) of the inner element (7) and radially outside in sections and at least indirectly via the upper annular end face (14) thereof abuts a lower annular edge (15) of an annular groove (16) of the housing (4) in the event of an abutment on the stop, wherein the circlip (10) is stacked with a circumferential ring (18) having an offset bore (17), and as the projection (12) a tongue extends radially outwardly away from the circumferential ring (18) through a segment-like opening (20) of the housing (4) that starts from an upper annular end face (19) of the housing (4).
Description
Schaltbares Abstützelement Switchable support element
Die Erfindung betrifft ein schaltbares Abstützelement für einen Ventiltrieb einer Brennkraftmaschine, mit einem in eine Aufnahme eines Zylinderkopfes der Brennkraftmaschine einbaubaren Gehäuse, in dessen Bohrung ein axial bewegliches, aus dem Gehäuse heraus durch ein Federmittel beaufschlagtes Innenelement sitzt, wobei in einer Radialbohrung des Innenelements wenigstens ein Koppelschieber verläuft, welcher in einer axial ausgefahrenen Position mit einer Mitnehmerfläche des Gehäuses in Eingriff bringbar ist, wobei die ausgefahrene Position über ein Höhenanschlagmittel begrenzt ist und wobei ein Außenmantel des Gehäuses von einem Vorsprung zur Darstellung einer äuße- ren Verdrehsicherung überragt ist. The invention relates to a switchable support member for a valve train of an internal combustion engine, with an insertable into a receptacle of a cylinder head of the internal combustion engine housing, in the bore an axially movable, from the housing acted upon by a spring means inner member sits, wherein in a radial bore of the inner member at least one Coupling slide extends, which is engageable in an axially extended position with a cam surface of the housing in engagement, wherein the extended position is limited by a height stop means and wherein an outer casing of the housing is surmounted by a projection for representing an outer anti-rotation.
Als nächstkommender Stand der Technik wird die DE 10 2008 048 926 A1 betrachtet. Im Außenmantel des Gehäuses sitzt ein multifunktionaler Clip. Dieser überragt mit einem sichelartigen Teilbereich den vorgenannten Außenmantel zur Darstellung der äußeren Verdrehsicherung. Die Verdrehsicherung ist notwendig, um eine gerichtete Zuleitung von Hydraulikmittel zum Abstützelement zu schaffen und / oder um die Radialbohrung des Abstützelements mit den Koppelkolben im Hinblick auf die Umgebungskonstruktion auszurichten. Gleichzeitig ist über den o. g. Clip ein Höhenanschlagmittel [Gewähr von Koppelspiel] durch Anlage an einem Ringabsatz des Innenelements sowie eine innere Verdrehsicherung realisiert. The closest prior art considered is DE 10 2008 048 926 A1. In the outer casing of the housing sits a multifunctional clip. This surmounted by a sickle-like portion of the aforementioned outer sheath to represent the external rotation. The rotation is necessary to provide a directed supply of hydraulic fluid to the support element and / or to align the radial bore of the support member with the coupling piston with respect to the surrounding construction. At the same time, above the o. G. Clip a height stop means [guarantee of coupling play] realized by contact with an annular shoulder of the inner element and an inner anti-rotation.
Der Clip ist im Betrieb enormen Belastungen ausgesetzt. Zudem erkennt der Fachmann, dass das ohnehin dünnwandige Innenelement wegen der Darstellung der inneren Verdrehsicherung (Längsanflachungen) geschwächt ist sowie Führungs- und Dichtlänge einbüsst. Eine einfache Einstellung der axial ausgefahrenen Position des Innenelements [Koppelspiel] ist ebenfalls nicht möglich,
da der Clip ggf. nach einem Feststellen eines Ist-Spiels wieder demontiert werden muss. The clip is exposed to enormous loads during operation. In addition, the expert recognizes that the already thin-walled inner element is weakened because of the representation of the inner anti-rotation (Längsanflachungen) and loses leadership and sealing length. A simple adjustment of the axially extended position of the inner element [coupling play] is also not possible because the clip may need to be disassembled after determining an actual game again.
Des Weiteren sind schaltbare Abstützelemente vorbekannt, deren äußere Ver- drehsicherung über einen in einem Fenster des Gehäuses sitzenden Pin realisiert ist. Letztgenannter kann sich im Betrieb unter Umständen lösen. Außerdem kommt es bei dessen Montage ggf. zu Verformungen des Gehäuses. Furthermore, switchable support elements are previously known, whose outer locking device is realized by means of a pin located in a window of the housing. The latter may possibly be solved during operation. In addition, it may be deformed during assembly of the housing.
Daher soll ein schaltbares Abstützelement geschaffen werden, bei welchem die o. g. Nachteile nicht zu verzeichnen sind. Therefore, a switchable support element is to be created in which the o. G. Disadvantages are not recorded.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass als Höhenan- schlagmittel zumindest ein auf einem gehäuseseitigen Ringabsatz des Innenelements umlaufender Sprengring appliziert ist, welcher radial außen ab- schnittsweise sowie zumindest mittelbar über dessen obere Ringstirn an einer Unterringkante einer Ringnut des Gehäuse im Anschlagfall anliegt, wobei der Sprengring mit einem Umlaufring mit desachsierter Bohrung gestapelt ist, von welchem Umlaufring eine Zunge als der Vorsprung radial nach außen durch eine segmentartige, von einer oberen Ringstirn des Gehäuses ausgehende Ausnehmung des Gehäuses wegragt. According to the invention, this object is achieved in that as a height stop means at least one on a housing-side annular shoulder of the inner member circumferential snap ring is applied, which abuts radially outwardly and partially at least indirectly via the upper annular end to a lower ring edge of an annular groove of the housing in the attack case, said the snap ring is stacked with a circulating ring with a de-centered bore, from which circumferential race a tongue as the projection projects radially outwardly through a segment-like recess extending from an upper annular end of the housing recess of the housing.
Somit liegt ein Abstützelement der eingangs genannten Gattung vor, bei welchem die beschriebenen Nachteile nicht mehr zu verzeichnen sind. Der wenigstens eine Sprengring, ggf. mit spannungsreduzierendem Wellenprofil an dessen Mantelflächen, lässt sich sehr einfach montieren. Das Innenelement hat ausreichend Führungs- und Dichtlänge. Gleichzeitig liegt über den Umlaufring eine einfache äußere Verdrehsicherung vor. Es kommt somit im Vergleich zum eingangs beschriebenen St. d. Technik zu einer Funktionstrennung. Aufgrund der desachsiert hergestellten Bohrung des Umlaufrings kann sich dieser nicht in Bezug auf das Abstützelement verdrehen. Thus, there is a support element of the type mentioned, in which the disadvantages described are no longer recorded. The at least one snap ring, possibly with voltage-reducing wave profile on the lateral surfaces, can be mounted very easily. The inner element has sufficient guidance and sealing length. At the same time, there is a simple outer anti-twist device over the revolving ring. It comes thus in comparison to the St. d. Technology for a separation of functions. Due to the desachsiert produced bore of the circulating ring, this can not rotate with respect to the support element.
Der Umlaufring kann als einfaches Blechstanzteil ausgebildet sein. Im Falle einer Applikation von lediglich einem Sprengring werden in der Montage vor-
teilhaft dicken konstante Umlaufringe und dickengruppierte Sprengringe zur Einstellung des Höhenanschlags [Koppelspiel] vorgehalten, wobei hierbei der jeweilige Sprengring vorzugsweise oben liegend montiert ist. Vorteilhaft ist es, genau zwei Sprengringe zu montieren, welche den Umlaufring sandwichartig einfassen, wobei hierbei lediglich der obere Sprengring einer Feineinstellung des Koppelspiels dient. The circulating ring can be designed as a simple stamped sheet metal part. In the case of application of just one snap ring, the assembly Partly thick constant circumferential rings and thickness-grouped snap rings for setting the height stop [coupling play] held, in which case the respective snap ring is preferably mounted above lying. It is advantageous to mount exactly two snap rings, which sandwich the circulating ring, in which case only the upper snap ring serves a fine adjustment of the coupling play.
Über den zumindest einen Sprengring ist es in Konkretisierung der Erfindung auch vorgeschlagen, eine innere Verdrehsicherung, also eine Rotationssicherung des Innenelements gegenüber dem Gehäuse, darzustellen. Hierfür weist dieser Sprengring an dessen Innenrand eine bogensehnenartige Anflachung auf, welche mit einem Flach am Außenmantel des Innenelements zusammenwirkt. About the at least one snap ring, it is also proposed in concretization of the invention, an internal rotation, so a rotation security of the inner member relative to the housing, represent. For this purpose, this snap ring on the inner edge of a bow chord-like flattening, which cooperates with a flat on the outer surface of the inner member.
Bei einer Verwendung von genau zwei Koppelschiebern ist eine belastungsarme Krafteinleitung im Koppelfall garantiert. Verkippungen sind ausgeschlossen oder vermindert. Zweckmäßigerweise erfolgt eine Ausrichtung der Axiallinie der Koppelschieber parallel zur Zylinderkopflängsrichtung oder anders gesagt in Nockenwellenrichtung. When using exactly two coupling slides, a low-load force transmission is guaranteed in the coupling case. Tilts are excluded or reduced. Appropriately, an alignment of the axial line of the coupling slide takes place parallel to the cylinder head longitudinal direction or in other words in the camshaft direction.
Zur näheren Erläuterung der Einstellung des Koppelspiels wird auf den älteren Stand der Technik verwiesen (s. DE 102 04 672 A1 , Anspruch 7 sowie Beschreibung hierzu). For a more detailed explanation of the setting of the coupling play, reference is made to the older prior art (see DE 102 04 672 A1, claim 7 and description thereof).
Die erfindungsgemäßen Maßnahmen können auch bei Rollenstößeln appliziert werden. The measures according to the invention can also be applied to roller tappets.
Die Erfindung geht aus der Zeichnung hervor. Es zeigen: The invention is apparent from the drawing. Show it:
• Figur 1 einen Längsschnitt durch ein schaltbares Abstützelement, quer zu dessen Koppelschiebern;
• Figur 2 eine Draufsicht auf das Abstützelement mit einem zweiten, oberen Sprengring und · Figur 3 eine vergrößert dargestellte Draufsicht auf das Abstützelement mit Umlaufring. FIG. 1 shows a longitudinal section through a switchable support element, transverse to its coupling slides; FIG. 2 shows a plan view of the support element with a second, upper snap ring, and FIG. 3 shows an enlarged plan view of the support element with a circulation ring.
Gezeichnet ist in Figur 1 ein schaltbares Abstützelement 1 für einen Ventiltrieb einer Brennkraftmaschine, quer zu dessen zwei Koppelschiebern 9 (s. hierfür DE 102 04 672 A1 ), so dass diese nicht in ihrer Längserstreckung innerhalb deren Radialbohrung 8 genauer zu erkennen sind. 1 shows a switchable support element 1 for a valve drive of an internal combustion engine, transverse to its two coupling slides 9 (see DE 102 04 672 A1), so that they can not be seen more accurately in their longitudinal extent within their radial bore 8.
Das Abstützelement 1 hat ein in eine hier angedeutete Aufnahme 2 eines Zy- linderkopfes 3 der Brennkraftmaschine eingebautes, topfartiges Gehäuse 4 aus Blech. In einer Bohrung 5 des Gehäuses 4 verläuft ein axial bewegliches, aus dem Gehäuse 4 heraus durch ein Federmittel 6 (Schraubendruckfederpakt) beaufschlagtes Innenelement 7 mit einem Kopf 27. Letztgenannter dient einer einenendigen Abstützung eines Schlepphebels. The support element 1 has a cup-shaped housing 4 made of sheet metal, which is incorporated into a receptacle 2 of a cylinder head 3 of the internal combustion engine indicated here. In a bore 5 of the housing 4 extends an axially movable, out of the housing 4 out by a spring means 6 (helical compression spring pact) acted upon inner element 7 with a head 27. The latter serves a one-end support of a finger lever.
Die Koppelschieber 9 liegen sich in der Radialbohrung 8 diametral gegenüber. Sie sind in der gezeigten axial ausgefahrenen Position des Innenelements 7 mit einer Mitnehmerfläche des Gehäuses 4 in Eingriff, so dass der Ventilhub vollzogen wird. The coupling slide 9 are located in the radial bore 8 diametrically opposite. They are in the illustrated axially extended position of the inner member 7 with a cam surface of the housing 4 in engagement, so that the valve lift is completed.
Die ausgefahrene Position ist über ein Höhenanschlagmittel 10 begrenzt, welches hierbei aus zwei Sprengringen besteht. Letztgenannte laufen auf einem gehäuseseitigen Ringabsatz 13 des Innenelements 7 um, wobei der obere der Sprengringe 10 radial außen abschnittsweise über dessen obere Ringstirn 14 an einer Unterringkante 15 einer Ringnut 16 des Gehäuse 4 anschlägt. The extended position is limited by a height stop means 10, which in this case consists of two snap rings. The latter run on a housing-side annular shoulder 13 of the inner member 7, wherein the upper of the snap rings 10 strikes radially outwardly in sections over the upper annular end 14 at a lower ring edge 15 of an annular groove 16 of the housing 4.
Zwischen den Sprengringen 10 ist sandwichartig ein Umlaufring 18 mit de- sachsierter Bohrung 17 aufgenommen, so dass sich dieser nicht verdrehen
kann. Von dem Umlaufring 18 ragt eine Zunge als Vorsprung 12 radial nach außen einteilig ab. Der Vorsprung 12 geht hierbei durch eine segmentartige, von einer oberen Ringstirn 19 des Gehäuses 4 ausgehende Ausnehmung 20 des Gehäuses 4. Somit ist eine äußere Verdrehsicherung für das Abstützele- ment 1 gegenüber der Aufnahme 2 des Zylinderkopfes 3 geschaffen. Between the snap rings 10 is sandwiched a circular ring 18 with a sunken hole 17 recorded, so that this does not twist can. From the circulating ring 18, a tongue projects as a projection 12 radially outwardly in one piece. The projection 12 in this case passes through a segment-like, emanating from an upper annular end 19 of the housing 4 recess 20 of the housing 4. Thus, an external rotation for the Abstützele- element 1 relative to the receptacle 2 of the cylinder head 3 is created.
Bei einer Montage und Koppelspieleinstellung wird lediglich der obere Sprengring 10 in Dicken gruppiert vorgehalten und zugepaart. Wie aus Figur 2 hervorgeht, ist der obere Sprengring 10 an seinem Innenrand 21 mit einer Abflachung 22 versehen (der untere, nicht ersichtliche Sprengring 10 ebenfalls). Die Abflachung 22 liegt zur Ausbildung einer inneren Verdrehsicherung an einem Flach 24 eines Außenmantels 23 des Innenelements 7 an. Freie Enden 25 des Sprengrings 10 sind radial nach außen abgewinkelt und verlaufen an Schenkeln 26 der Ausnehmung 20 des Gehäuses 4.
In an assembly and coupling clearance setting, only the upper snap ring 10 is grouped in thicknesses and paired. As is apparent from Figure 2, the upper snap ring 10 is provided at its inner edge 21 with a flattening 22 (the lower, not apparent snap ring 10 also). The flattening 22 abuts a flat 24 of an outer shell 23 of the inner member 7 to form an inner anti-rotation. Free ends 25 of the snap ring 10 are angled radially outward and extend to legs 26 of the recess 20 of the housing 4th
Liste der Bezugszahlen List of reference numbers
1 ) Abstützelement 1) support element
2) Aufnahme 2) recording
3) Zylinderkopf 3) Cylinder head
4) Gehäuse 4) housing
5) Bohrung 5) bore
6) Federmittel 6) Spring means
7) Innenelement 7) inner element
8) Radialbohrung 8) radial bore
9) Koppelschieber 9) Coupling slide
10JHöhenanschlagmittel, Sprengring 10J height stopper, snap ring
1 1 ) Außenmantel Gehäuse 1 1) outer casing housing
12) Vorsprung, Zunge 12) projection, tongue
13)Ringabsatz 13) annular shoulder
14) obere Ringstirn 14) upper ring front
15) Unterringkante 15) lower edge
16) Ringnut 16) annular groove
17) Bohrung 17) bore
18)Umlaufring 18) rotary ring
19) obere Ringstirn 19) upper ring front
20) Ausnehmung 20) recess
21 ) lnnenrand 21) inside edge
22) Abflachung 22) flattening
23)Außenmantel Innenelement 23) outer jacket inner element
24) Flach 24) flat
25) Ende 25) end
26) Schenkel 26) thighs
27) Kopf
27) head
Claims
Patentansprüche claims
Schaltbares Abstützelement (1 ) für einen Ventiltrieb einer Brennkraftma- schine, mit einem in eine Aufnahme (2) eines Zylinderkopfes (3) der Brennkraftmaschine einbaubaren Gehäuse (4), in dessen Bohrung (5) ein axial bewegliches, aus dem Gehäuse (4) heraus durch ein Federmittel (6) beaufschlagtes Innenelement (7) sitzt, wobei in einer Radialbohrung (8) des Innenelements (7) wenigstens ein Koppelschieber (9) verläuft, welcher in einer axial ausgefahrenen Position mit einer Mitnehmerfläche des Gehäuses (4) in Eingriff bringbar ist, wobei die ausgefahrene Position über ein Höhenanschlagmittel (10) begrenzt ist und wobei ein Außenmantel (1 1 ) des Gehäuses (4) von einem Vorsprung (12) zur Darstellung einer äußeren Verdrehsicherung überragt ist, dadurch gekennzeichnet, dass als Höhenanschlagmittel (10) zumindest ein auf einem gehäuseseitigen Ringabsatz (13) des Innenelements (7) umlaufender Sprengring appliziert ist, welcher radial außen abschnittsweise sowie zumindest mittelbar über dessen obere Ringstirn (14) an einer Unterringkante (15) einer Ringnut (16) des Gehäuse (4) im Anschlagfall anliegt, wobei der Sprengring (10) mit einem Umlaufring (18) mit desach- sierter Bohrung (17) gestapelt ist, von welchem Umlaufring (18) eine Zunge als der Vorsprung (12) radial nach außen durch eine segmentartige, von einer oberen Ringstirn (19) des Gehäuses (4) ausgehende Ausnehmung (20) des Gehäuses (4) wegragt. Switchable support element (1) for a valve drive of an internal combustion engine, with a housing (4) which can be installed in a receptacle (2) of a cylinder head (3) of the internal combustion engine, in whose bore (5) an axially movable, out of the housing (4) at least one coupling slide (9) extends in a radial bore (8) of the inner element (7), which in an axially extended position engages with a driver surface of the housing (4) can be brought, wherein the extended position is limited by a height stop means (10) and wherein an outer casing (1 1) of the housing (4) by a projection (12) for representing an external anti-rotation is surmounted, characterized in that as height stop means (10 ) at least one on a housing-side annular shoulder (13) of the inner element (7) circumferential snap ring is applied, which radially outside sections and at least with In the event of a stop, it abuts over its upper annular end (14) on a lower annular edge (15) of an annular groove (16) of the housing (4), wherein the snap ring (10) is stacked with a circulating ring (18) with a desached bore (17) , from which circumferential race (18) a tongue as the projection (12) projects radially outward through a segment-like recess (20) of the housing (4) emanating from an upper annular end (19) of the housing (4).
2. Abstützelement nach Anspruch 1 , dadurch gekennzeichnet, dass genau zwei Sprengringe (10) verbaut sind, zwischen welchen der Umlaufring (16) liegt.
Abstützelement nach Anspruch 2, dadurch gekennzeichnet, dass zur Definierung der axial ausgefahrenen Position des Innenelements (7) aus dem Gehäuse (4) heraus lediglich der obere der beiden Sprengringe (10) bei einer Montage hinsichtlich dessen Dicke gruppiert vorliegt. 2. Supporting element according to claim 1, characterized in that exactly two snap rings (10) are installed, between which the circulating ring (16). Supporting element according to claim 2, characterized in that for defining the axially extended position of the inner element (7) out of the housing (4), only the upper of the two snap rings (10) is grouped with respect to its thickness during assembly.
Abstützelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Sprengring (10), oder, im Fall des Rückbezugs nach Anspruch 2, zumindest einer der Sprengringe (10), an seinem Innenrand (21 ) eine Abflachung (22) hat, welche mit einem am Außenmantel (23) des Innenelements (7) gegenüberliegenden Flach (24) kommuniziert, wobei freie Enden (25) des respektiven Sprengrings (10) radial nach außen abgewinkelt an Schenkeln (26) der Ausnehmung (20) des Gehäuses (4) anliegen, so dass das eine innere Verdrehsicherung gebildet ist. Supporting element according to claim 1 or 2, characterized in that the snap ring (10), or, in the case of the back cover according to claim 2, at least one of the snap rings (10), at its inner edge (21) has a flattening (22) which with one on the outer shell (23) of the inner member (7) opposite flat (24) communicates with free ends (25) of the respective snap ring (10) angled radially outwardly against legs (26) of the recess (20) of the housing (4) , so that the one inner anti-rotation is formed.
Abstützelement nach Anspruch 1 , dadurch gekennzeichnet, dass sich genau zwei Koppelschieber (9) in der Radialbohrung (8) des Gehäuses (4) diametral gegenüberliegen, wobei das Abstützelement (1 ) derartig verdrehgesichert verbaut ist, dass eine Axiallinie der Radialbohrung (8) in Längsrichtung des Zylinderkopfes (3) verläuft.
Support element according to claim 1, characterized in that exactly two coupling slide (9) in the radial bore (8) of the housing (4) are diametrically opposed, wherein the support element (1) is installed such rotationally secured, that an axial line of the radial bore (8) in Longitudinal direction of the cylinder head (3).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013207404.2A DE102013207404A1 (en) | 2013-04-24 | 2013-04-24 | Switchable support element |
| DE102013207404.2 | 2013-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014173402A1 true WO2014173402A1 (en) | 2014-10-30 |
Family
ID=50382176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2014/200065 WO2014173402A1 (en) | 2013-04-24 | 2014-02-17 | Switchable support element |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102013207404A1 (en) |
| WO (1) | WO2014173402A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2416852A (en) * | 1942-12-17 | 1947-03-04 | Waldes Koh I Noer Inc | Retaining ring |
| US5263386A (en) * | 1992-11-24 | 1993-11-23 | General Motors Corporation | Roller cam follower guide |
| DE10204672A1 (en) | 2002-02-06 | 2003-08-07 | Ina Schaeffler Kg | Valve-actuating switch element has two securing rings, thickness of one of which can be varied |
| DE102008048926A1 (en) | 2007-10-10 | 2009-04-16 | Schaeffler Kg | Switchable component for a valve train of an internal combustion engine |
| DE102008059567A1 (en) * | 2007-12-20 | 2009-06-25 | Schaeffler Kg | Switchable component for use as e.g. switchable supporting element, in valve drive of internal-combustion engine, has inner anti-twist device provided between element and housing, where twist device is formed above ring part |
| US20090199805A1 (en) * | 2008-02-11 | 2009-08-13 | Hendriksma Nick J | Deactivating hydraulic lash adjuster for oriented mounting in an engine |
| DE102008052279A1 (en) * | 2008-10-18 | 2010-04-22 | Schaeffler Kg | Switchable component for a valve train of an internal combustion engine |
-
2013
- 2013-04-24 DE DE102013207404.2A patent/DE102013207404A1/en not_active Withdrawn
-
2014
- 2014-02-17 WO PCT/DE2014/200065 patent/WO2014173402A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2416852A (en) * | 1942-12-17 | 1947-03-04 | Waldes Koh I Noer Inc | Retaining ring |
| US5263386A (en) * | 1992-11-24 | 1993-11-23 | General Motors Corporation | Roller cam follower guide |
| DE10204672A1 (en) | 2002-02-06 | 2003-08-07 | Ina Schaeffler Kg | Valve-actuating switch element has two securing rings, thickness of one of which can be varied |
| DE102008048926A1 (en) | 2007-10-10 | 2009-04-16 | Schaeffler Kg | Switchable component for a valve train of an internal combustion engine |
| DE102008059567A1 (en) * | 2007-12-20 | 2009-06-25 | Schaeffler Kg | Switchable component for use as e.g. switchable supporting element, in valve drive of internal-combustion engine, has inner anti-twist device provided between element and housing, where twist device is formed above ring part |
| US20090199805A1 (en) * | 2008-02-11 | 2009-08-13 | Hendriksma Nick J | Deactivating hydraulic lash adjuster for oriented mounting in an engine |
| DE102008052279A1 (en) * | 2008-10-18 | 2010-04-22 | Schaeffler Kg | Switchable component for a valve train of an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013207404A1 (en) | 2014-11-13 |
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