EP1564383A1 - Hydraulic supporting element - Google Patents
Hydraulic supporting element Download PDFInfo
- Publication number
- EP1564383A1 EP1564383A1 EP05001645A EP05001645A EP1564383A1 EP 1564383 A1 EP1564383 A1 EP 1564383A1 EP 05001645 A EP05001645 A EP 05001645A EP 05001645 A EP05001645 A EP 05001645A EP 1564383 A1 EP1564383 A1 EP 1564383A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure piston
- passage
- hydraulic
- housing
- supporting element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims description 33
- 230000009194 climbing Effects 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 claims 1
- 238000013022 venting Methods 0.000 claims 1
- 239000006260 foam Substances 0.000 description 5
- 230000007748 combinatorial effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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
-
- 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
-
- 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
- F01L1/245—Hydraulic tappets
Definitions
- the invention relates to a hydraulic support element for a valve train an internal combustion engine, with a hollow cylindrical housing, which with his outer jacket into a receptacle of a cylinder head of the internal combustion engine can be installed and in its bore an axially movable pressure piston picks up which pressure piston with its head an edge of the housing surmounted, wherein between a head face facing away from the Pressure piston and a bottom of the housing, a high pressure chamber for the Hydraulic means is formed, which by a direction towards this opening and attached to the end face check valve is closed, wherein the High-pressure chamber from a reservoir enclosed by the pressure piston is fed via the check valve with hydraulic fluid and wherein the housing at least one radial passage for the hydraulic fluid from the cylinder head has, the radially inward with at least one axially overlying Passage in the pressure piston in the reservoir is in fluid communication.
- Such a support element is previously known from DE 195 07 240 A1.
- the Hydraulic fluid is discharged directly from the passage in the pressure piston into the reservoir, above the end face of the pressure piston with the check valve, directed.
- the Hydraulic fluid is discharged directly from the passage in the pressure piston into the reservoir, above the end face of the pressure piston with the check valve, directed.
- the direct inflow of the hydraulic fluid into the reservoir of the pressure piston the amount of hydraulic fluid already accumulated therein is always re-entangled and thus, although possibly already degassed or "calmed down” again with air bubbles or oil foam mixed.
- the object of the invention is therefore to provide a supporting element of the aforementioned type in which eliminates the cited disadvantages by simple means are.
- two diametrically opposite ventilation holes be applied, so that even at an oblique installation of the hydraulic Supporting element is always guaranteed that at least one vent hole seen in the direction of gravity is relatively high up.
- a channel can be provided. However, it is more appropriate here to arrange circumferential annular channel, so that a relatively large amount of hydraulic fluid can be accumulated in the support.
- a simple measure of attachment of the deflection sleeve on the inner shell the pressure piston is the subject of another subclaim.
- the deflection sleeve should be made a lightweight material such as sheet metal.
- the annular groove in the outer jacket of the pressure piston with the passage can be quite easy to manufacture. Thus, a rotation and location assignment is unnecessary the passage to the radial passage.
- the housing has a pot-like geometry and is in Area of its underside closed by a floor. It can, however be formed open, so that then the high-pressure chamber at one Side is limited by a reason of the bore of the cylinder head.
- the figure discloses a hydraulic support element 1, as is known in the art is known per se from its structure and the mode of action.
- the support element 1 has a hollow cylindrical housing 2. This runs via its outer shell 3 fixed in a receptacle, not shown a Cylinder head of the internal combustion engine. This is also on a slope installation thought. In a bore 4 of the housing 2 is axially movable thereto a pressure piston 5 thin-walled type added. This pressure piston 5 surmounted with its head 6 an edge 7 of the housing. 2
- a high-pressure chamber 10 generated for the hydraulic fluid.
- the valve body in the direction of the end face 8 is spring-loaded.
- Axially above the end face 8 is from the pressure piston 5, a reservoir 12 for Hydraulic fluid included.
- the high-pressure chamber 10 from the Reservoir 12 via the check valve 11, if necessary, with hydraulic fluid provided.
- the housing 2 is penetrated by a radial passage 13 for the hydraulic fluid.
- Radial passage 13 the hydraulic fluid is further in an annular groove 20 in the outer jacket 21 of the pressure piston 5 passed.
- This annular groove 20 is axially above the radial passage 13 and has at least one passage 14 in the interior of the pressure piston 5.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Check Valves (AREA)
Abstract
Description
Die Erfindung betrifft ein hydraulisches Abstützelement für einen Ventiltrieb einer Brennkraftmaschine, mit einem hohlzylindrischen Gehäuse, welches mit seinem Außenmantel in eine Aufnahme eines Zylinderkopfes der Brennkraftmaschine einbaubar ist und in seiner Bohrung einen axial beweglichen Druckkolben aufnimmt, welcher Druckkolben mit seinem Kopf einen Rand des Gehäuses überragt, wobei zwischen einer dem Kopf abgewandten Stirnfläche des Druckkolbens und einer Unterseite des Gehäuses ein Hochdruckraum für das Hydraulikmittel gebildet ist, der durch ein sich in Richtung zu diesem öffnendes und an der Stirnfläche befestigtes Rückschlagventil verschließbar ist, wobei der Hochdruckraum aus einem vom Druckkolben eingeschlossenen Vorratsraum über das Rückschlagventil mit Hydraulikmittel gespeist ist und wobei das Gehäuse wenigstens einen Radialdurchtritt für das Hydraulikmittel aus dem Zylinderkopf hat, der radial innen mit zumindest einem axial darüber liegenden Durchlass im Druckkolben in dessen Vorratsraum in Fluidverbindung steht. The invention relates to a hydraulic support element for a valve train an internal combustion engine, with a hollow cylindrical housing, which with his outer jacket into a receptacle of a cylinder head of the internal combustion engine can be installed and in its bore an axially movable pressure piston picks up which pressure piston with its head an edge of the housing surmounted, wherein between a head face facing away from the Pressure piston and a bottom of the housing, a high pressure chamber for the Hydraulic means is formed, which by a direction towards this opening and attached to the end face check valve is closed, wherein the High-pressure chamber from a reservoir enclosed by the pressure piston is fed via the check valve with hydraulic fluid and wherein the housing at least one radial passage for the hydraulic fluid from the cylinder head has, the radially inward with at least one axially overlying Passage in the pressure piston in the reservoir is in fluid communication.
Ein derartiges Abstützelement ist aus der DE 195 07 240 A1 vorbekannt. Das Hydraulikmittel wird direkt aus dem Durchlass im Druckkolben in den Vorratsraum, oberhalb von der Stirnfläche des Druckkolbens mit dem Rückschlagventil, geleitet. In der Praxis hat sich gezeigt, dass bei einem derartigen Abstützelement einfach gesagt zuviel Luftblasen und Ölschaum im Vorratsraum akkumuliert, so dass diese bzw. dieser unerwünscht während des Spielausgleichvorganges in den Hochdruckraum gesaugt werden. Dies führt zu einer unerwünschten Kompressibilität des Hochdruckraumes, so dass bei Nockenhub nicht der vorbestimmte Gaswechselquerschnitt zur Verfügung steht. Durch das direkte Einströmen des Hydraulikmittels in den Vorratsraum des Druckkolbens wird die darin schon akkumulierte Menge an Hydraulikmittel stets neu verwirbelt und somit, obwohl ggf. schon entgast bzw. "beruhigt", erneut mit Luftblasen bzw. Ölschaum vermischt.Such a support element is previously known from DE 195 07 240 A1. The Hydraulic fluid is discharged directly from the passage in the pressure piston into the reservoir, above the end face of the pressure piston with the check valve, directed. In practice it has been found that in such a support element simply put too much air bubbles and oil foam accumulated in the storeroom, so that this or this undesirable during the game compensation process be sucked into the high-pressure chamber. This leads to an undesirable Compressibility of the high-pressure chamber, so that when Nockenhub not the predetermined gas exchange cross section is available. By the direct inflow of the hydraulic fluid into the reservoir of the pressure piston the amount of hydraulic fluid already accumulated therein is always re-entangled and thus, although possibly already degassed or "calmed down" again with air bubbles or oil foam mixed.
Aufgabe der Erfindung ist es daher, ein Abstützelement der vorgenannten Art zu schaffen, bei welchem die zitierten Nachteile mit einfachen Mitteln beseitigt sind.The object of the invention is therefore to provide a supporting element of the aforementioned type in which eliminates the cited disadvantages by simple means are.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass
Genau durch eine Kombination der eben genannten Maßnahmen sind die eingangs beschriebenen Nachteile wirkungsvoll vermieden. Es ist durch das vorzugsweise als Umlenkhülse ausgebildete Schottmittel einerseits vor dem Rückschlagventil ein sogenannter Tot- bzw. Ruheraum für das Hydraulikmittel dargestellt. Neu einströmende Luftblasen bzw. Ölsschaum können nicht mehr das vor dem Rückschlagventil liegende und schon "beruhigte" Hydraulikmittel neu verwirbeln und beeinflussen. Eine Teilmenge an Luftblasen und Ölschaum kann somit relativ ungestört aus der Umlenkhülse entgegen der Schwerkraftrichtung nach oben entweichen. Ein weiterer Betrag von unerwünschter Luft im Hydraulikmittelstrom wird schon vor dem eigentlichen Eintritt in das Innere der Umlenkhülse über die axial oberhalb des Durchlasses im Druckkolben liegende wenigstens eine Entlüftungsbohrung ins Freie geleitet. Genau dieser kombinatorische Effekt (Umlenkblech + Entlüftungsbohrung) führt dazu, dass der Hochdruckraum weitestgehend inkompressibel bleibt, da die unerwünschten Luftbestandteile dort nicht mehr angesaugt werden.Precisely by a combination of the measures just mentioned are the beginning described disadvantages effectively avoided. It is by the preferred designed as Umlenkhülse bulkhead on the one hand in front of the check valve a so-called dead or rest space for the hydraulic fluid shown. New incoming air bubbles or oil foam can not do this anymore before the check valve lying and already "calmed down" hydraulic fluid new swirl and influence. A subset of air bubbles and oil foam can thus relatively undisturbed from the Umlenkhülse against the direction of gravity escape to the top. Another amount of unwanted air in the Hydraulic fluid flow is already before the actual entry into the interior of Deflection sleeve over the axially above the passage in the pressure piston lying led at least one vent hole into the open air. Exactly this combinatorial Effect (deflector + vent hole) causes the high-pressure chamber remains largely incompressible because the unwanted air constituents no longer be sucked in there.
Vorzugsweise sollen zwei sich diametral gegenüber liegende Entlüftungsbohrungen appliziert werden, so dass auch bei einem Schrägeinbau des hydraulischen Abstützelementes stets garantiert ist, dass zumindest eine Entlüftungsbohrung in Schwerkraftrichtung gesehen relativ weit oben liegt.Preferably, two diametrically opposite ventilation holes be applied, so that even at an oblique installation of the hydraulic Supporting element is always guaranteed that at least one vent hole seen in the direction of gravity is relatively high up.
Anstelle der allumlaufenden Umlenkhülse als Schottmittel können auch andere Mittel vorgesehen sein. So sind auch einfache, in Fließrichtung hinter dem Durchlass im Druckkolben liegende, Prallbleche oder ähnliches für das Hydraulikmittel vorgesehen, so dass zumindest ein direktes Auftreffen des Hydraulikmittelstroms mit dem vor dem Rückschlagventil befindlichen und schon "beruhigten" Hydraulikmittel vermieden ist.Instead of the all-round deflection sleeve as a bulkhead can also others Means be provided. So are also simple, in the flow direction behind the Passage in the pressure piston lying baffles or the like for the hydraulic fluid provided so that at least one direct impact of the hydraulic fluid flow with the one in front of the check valve and already "calmed down" Hydraulic fluid is avoided.
Zwar kann als Steigpfad für das Hydraulikmittel am Innenmantel des Druckkolbens ein Kanal vorgesehen werden. Zweckmäßiger ist es jedoch, hier einen umlaufenden Ringkanal anzuordnen, so dass eine relativ große Hydraulikmittelmenge im Abstützelement angehäuft werden kann. Although can be used as climbing path for the hydraulic fluid on the inner surface of the pressure piston a channel can be provided. However, it is more appropriate here to arrange circumferential annular channel, so that a relatively large amount of hydraulic fluid can be accumulated in the support.
Eine einfache Maßnahme einer Befestigung der Umlenkhülse am Innenmantel des Druckkolbens ist Gegenstand eines weiteren Unteranspruchs. Somit kann diese beispielsweise durch Einschnappen oder Klipsen am Innenmantel des Druckkolbens befestigt werden. Alternativ hierzu bieten sich Maßnahmen wie Schweißen, Kleben, Löten o. ä. an. Vorzugsweise soll die Umlenkhülse aus einem Leichtbauwerkstoff wie Blech bestehen. Denkbar ist jedoch auch eine Kunststoffausbildung.A simple measure of attachment of the deflection sleeve on the inner shell the pressure piston is the subject of another subclaim. Thus, can This example, by snapping or clipping on the inner surface of the Pressure piston are attached. Alternatively, measures such as Welding, gluing, soldering or similar. Preferably, the deflection sleeve should be made a lightweight material such as sheet metal. However, it is also conceivable one Plastic training.
Die Ringnut im Außenmantel des Druckkolbens mit dem Durchlass lässt sich recht einfach fertigen. Somit erübrigt sich eine Verdrehsicherung und Lagezuordnung des Durchlasses zum Radialdurchtritt.The annular groove in the outer jacket of the pressure piston with the passage can be quite easy to manufacture. Thus, a rotation and location assignment is unnecessary the passage to the radial passage.
Zweckmäßigerweise hat das Gehäuse eine topfartige Geometrie und ist im Bereich seiner Unterseite durch einen Boden verschlossen. Es kann jedoch auch offen ausgebildet werden, so dass dann der Hochdruckraum an einer Seite durch einen Grund der Bohrung des Zylinderkopfes begrenzt ist.Conveniently, the housing has a pot-like geometry and is in Area of its underside closed by a floor. It can, however be formed open, so that then the high-pressure chamber at one Side is limited by a reason of the bore of the cylinder head.
Die Erfindung ist zweckmäßigerweise anhand der Zeichnung näher erläutert. Es zeigt die einzige Figur in einem Längsschnitt ein hydraulisches Abstützelement mit den erfindungsgemäßen Maßnahmen.The invention is suitably explained in more detail with reference to the drawing. It shows the only figure in a longitudinal section of a hydraulic support element with the inventive measures.
Die Figur offenbart ein hydraulisches Abstützelement 1, so wie es der Fachwelt von seinem Aufbau und der Wirkungsweise her an sich bekannt ist.The figure discloses a hydraulic support element 1, as is known in the art is known per se from its structure and the mode of action.
Das Abstützelement 1 hat ein hohlzylindrisches Gehäuse 2. Dieses verläuft
über seinen Außenmantel 3 ortsfest in einer nicht dargestellten Aufnahme eines
Zylinderkopfes der Brennkraftmaschine. Hierbei ist auch an einen Schrägeinbau
gedacht. In einer Bohrung 4 des Gehäuses 2 ist axial beweglich hierzu
ein Druckkolben 5 dünnwandiger Bauart aufgenommen. Dieser Druckkolben 5
überragt mit seinem Kopf 6 einen Rand 7 des Gehäuses 2.The support element 1 has a hollow
Zwischen einer dem Kopf 6 abgewandten Stirnfläche 8 (hier eine Ringfläche)
des Druckkolbens 5 und einer Unterseite 9 des Gehäuses 2 ist ein Hochdruckraum
10 für das Hydraulikmittel generiert. An einer Unterseite der Stirnfläche 8
verläuft ein Rückschlagventil 11, dessen Ventilkörper in Richtung zur Stirnfläche
8 angefedert ist.Between an
Axial oberhalb der Stirnfläche 8 ist vom Druckkolben 5 ein Vorratsraum 12 für
Hydraulikmittel eingeschlossen. Somit wird der Hochdruckraum 10 aus dem
Vorratsraum 12 über das Rückschlagventil 11 bedarfsweise mit Hydraulikmittel
versorgt.Axially above the
Zudem kann sich der Fachmann der Figur entnehmen, dass das Gehäuse 2
von einem Radialdurchtritt 13 für das Hydraulikmittel durchdrungen ist. Dieser
kommuniziert mit einer Zuleitung für das Hydraulikmittel im Zylinderkopf. Vom
Radialdurchtritt 13 wird das Hydraulikmittel weiter in eine Ringnut 20 im Außenmantel
21 des Druckkolbens 5 geleitet. Diese Ringnut 20 liegt axial oberhalb
des Radialdurchtritts 13 und hat zumindest einen Durchlass 14 in das Innere
des Druckkolbens 5.In addition, the person skilled in the figure can deduce that the
Gleichzeitig ist axial unterhalb des Durchlasses 14 am Innenmantel 17 ein
Schottmittel 15 befestigt. Dieses ist hier als Umlenkhülse 15a ausgebildet. Somit
ist, ausgehend vom Durchlass 14, ein ringförmiger Steigpfad 18 nach dem
Durchlass 14 für das Hydraulikmittel gebildet.At the same time is axially below the
Im Bereich des Kopfes 6, an welchem das Ende eines Schlepphebels aufliegt,
wird das Hydraulikmittel in einen von der Umlenkhülse 15a eingeschlossenen
Innenraum 19 geleitet. Somit stellt dieser Innenraum 19 den eigentlichen Vorratsraum
12 des Druckkolbens 5 dar. Von diesem Innenraum 19 erfolgt, in an
sich bekannter Art und Weise, eine Weiterleitung des Hydraulikmittels über das
Rückschlagventil 11 in den Hochdruckraum 10.In the region of the
Zudem ist zu erkennen, dass axial oberhalb des Durchlasses 14, jedoch unterhalb
des Randes 7, zwei sich diametral gegenüber liegende Entlüftungsbohrungen
16 angeordnet. Diese liegen somit im Bereich des Steigpfades 18.In addition, it can be seen that axially above the
Genau wegen des Einsatzes der Umlenkhülse 15a als Schottmittel 15, in Verbindung
mit den vorgenannten Entlüftungsbohrungen 16, kommt es zu dem
hervorragenden kombinatorischen Effekt, dass der Hochdruckraum 10 weitestgehend
von Ölschaum und Luftblasen frei bleibt und das Abstützelement 1
somit bei Nockenhub nicht unerwünscht kompressibel wird.Exactly because of the use of the deflection sleeve 15a as a bulkhead 15, in conjunction
with the aforementioned vent holes 16, it comes to the
excellent combinatorial effect that the high-
Nach dem Einströmen des Hydraulikmittels über den Durchlass 14 im Druckkolben
5 wird schon ein erstes Quantum an Luft über die Entlüftungsbohrungen
16 mittelbar ins Freie geleitet. Gleichzeitig liegt das unmittelbar oberhalb vom
Rückschlagventil 11 akkumulierte Hydraulikmittel relativ beruhigt innerhalb der
Umlenkhülse 15a vor. Dies rührt daher, dass es nicht mehr durch am Radialdurchtritt
13 einströmendes Hydraulikmittel verwirbelt und somit beeinflusst
wird. Sollte das über den Steigpfad 18 in den Innenraum 19 der Umlenkhülse
15a geleitete Hydraulikmittel noch Luftblasen oder gelöste Luft aufweisen, so
steigt die Luft peu ä peu nach oben und beeinflusst nicht das relativ "ruhig" vorliegende
Hydraulikmittel unmittelbar vor dem Rückschlagventil 11. After the inflow of hydraulic fluid through the
- 11
- Abstützelementsupporting
- 22
- Gehäusecasing
- 33
- Außenmantelouter sheath
- 44
- Bohrungdrilling
- 55
- Druckkolbenpressure piston
- 66
- Kopfhead
- 77
- Randedge
- 88th
- Stirnflächeface
- 99
- Unterseitebottom
- 1010
- HochdruckraumHigh-pressure chamber
- 1111
- Rückschlagventilcheck valve
- 1212
- Vorratsraumpantry
- 1313
- RadialdurchtrittRadial passage
- 1414
- Durchlasspassage
- 1515
- SchottmittelSchott means
- 15a15a
- Umlenkhülsedeflecting
- 1616
- Entlüftungsbohrungvent hole
- 1717
- Innenmantelinner sheath
- 1818
- SteigpfadSteig path
- 1919
- Innenrauminner space
- 2020
- Ringnutring groove
- 2121
- Außenmantelouter sheath
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004006903 | 2004-02-12 | ||
DE102004006903A DE102004006903A1 (en) | 2004-02-12 | 2004-02-12 | Hydraulic support element |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1564383A1 true EP1564383A1 (en) | 2005-08-17 |
EP1564383B1 EP1564383B1 (en) | 2007-03-28 |
Family
ID=34684021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05001645A Active EP1564383B1 (en) | 2004-02-12 | 2005-02-04 | Hydraulic supporting element |
Country Status (3)
Country | Link |
---|---|
US (1) | US6959677B2 (en) |
EP (1) | EP1564383B1 (en) |
DE (2) | DE102004006903A1 (en) |
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WO2009030564A2 (en) * | 2007-09-04 | 2009-03-12 | Schaeffler Kg | Switchable support element for a valve train of an internal combustion engine |
EP2767684A1 (en) * | 2013-02-15 | 2014-08-20 | Otics Corporation | Lash adjuster |
WO2015021962A1 (en) * | 2013-08-13 | 2015-02-19 | Schaeffler Technologies Gmbh & Co. Kg | Hydraulic support element |
US8973546B2 (en) | 2013-02-14 | 2015-03-10 | Otics Corporation | Lash adjuster |
US9010291B2 (en) | 2013-02-15 | 2015-04-21 | Otics Corporation | Lash adjuster |
US9080469B2 (en) | 2013-02-14 | 2015-07-14 | Otics Corporation | Lash adjuster |
US9091186B2 (en) | 2013-02-15 | 2015-07-28 | Otics Corporation | Lash adjuster |
CN110573701A (en) * | 2017-05-08 | 2019-12-13 | 舍弗勒技术股份两合公司 | Tappet column |
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EP1835168B1 (en) * | 2006-03-17 | 2008-12-03 | Delphi Technologies, Inc. | Fuel injection pump |
DE102006017442A1 (en) * | 2006-04-13 | 2007-10-18 | Schaeffler Kg | Hydraulic support element for a lever-like cam follower of a valve train of an internal combustion engine |
US8358226B2 (en) * | 2007-10-28 | 2013-01-22 | Synaptics Incorporated | Determining actuation of multi-sensor-electrode capacitive buttons |
DE102011075042A1 (en) | 2011-05-02 | 2012-11-08 | Schaeffler Technologies AG & Co. KG | Hydraulic support element |
US9803518B2 (en) | 2014-01-20 | 2017-10-31 | Nittan Valve Co., Ltd. | Hydraulic lash adjuster |
DE102014212272A1 (en) | 2014-06-26 | 2015-12-31 | Schaeffler Technologies AG & Co. KG | supporting |
CN104131852B (en) * | 2014-07-01 | 2017-07-07 | 杭州新坐标科技股份有限公司 | A kind of column formula hydraulic tappet and its plunger preparation method |
DE102015203049A1 (en) | 2015-02-20 | 2016-08-25 | Schaeffler Technologies AG & Co. KG | A clearance compensation device for a valve or tensioning device for a belt or chain drive |
JP6402066B2 (en) * | 2015-04-02 | 2018-10-10 | 株式会社オティックス | Rush adjuster |
DE102015222629A1 (en) | 2015-11-17 | 2017-05-18 | Schaeffler Technologies AG & Co. KG | Hydraulic support element |
DE102021120734A1 (en) | 2021-08-10 | 2023-02-16 | Schaeffler Technologies AG & Co. KG | Hydraulic support element for a valve drive of an internal combustion engine |
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DE2343269A1 (en) * | 1973-08-28 | 1975-03-06 | Motomak | Hydraulic clearance compensator for I.C. engine valves - has a cylinder and a piston arrangement which is not drained completely when engine is stationary |
US4584976A (en) * | 1985-06-20 | 1986-04-29 | Eaton Corporation | Reservoir height extender for lash adjuster assembly |
EP0351033A1 (en) * | 1988-07-13 | 1990-01-17 | Fuji Oozx Inc. | Hydraulic valve lash adjuster |
EP0361637A1 (en) * | 1988-09-30 | 1990-04-04 | Fuji Oozx Inc. | Hydraulic valve lash adjuster |
EP0411215A1 (en) * | 1989-07-28 | 1991-02-06 | Fuji Oozx Inc. | Method of partitioning the internal space of a hollow cylindrical member |
DE19507240A1 (en) * | 1995-03-02 | 1996-09-05 | Schaeffler Waelzlager Kg | Part spherical support end of push rod with mushroom shaped extension |
DE19529044A1 (en) * | 1995-08-08 | 1997-02-13 | Schaeffler Waelzlager Kg | Hydraulic lash adjuster for a valve control of an internal combustion engine |
DE19805511A1 (en) * | 1998-02-11 | 1999-08-12 | Bayerische Motoren Werke Ag | Control valve for hydraulic valve timing control for IC engine |
US5979377A (en) * | 1996-04-13 | 1999-11-09 | Ina Walzlager Schaffler Ohg | Hydraulic support element for a valve gear mechanism of an internal combustion engine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4234868C2 (en) * | 1992-10-16 | 1999-10-28 | Schaeffler Waelzlager Ohg | Process for the production of a rocker arm or rocker arm |
DE9319435U1 (en) * | 1993-12-17 | 1994-02-10 | Schaeffler Waelzlager Kg | Switchable support element |
DE10146129A1 (en) * | 2001-09-19 | 2003-04-03 | Ina Schaeffler Kg | Switching element for a valve train of an internal combustion engine |
-
2004
- 2004-02-12 DE DE102004006903A patent/DE102004006903A1/en not_active Withdrawn
-
2005
- 2005-02-04 EP EP05001645A patent/EP1564383B1/en active Active
- 2005-02-04 DE DE502005000508T patent/DE502005000508D1/en active Active
- 2005-02-10 US US11/055,268 patent/US6959677B2/en active Active
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DE2343269A1 (en) * | 1973-08-28 | 1975-03-06 | Motomak | Hydraulic clearance compensator for I.C. engine valves - has a cylinder and a piston arrangement which is not drained completely when engine is stationary |
US4584976A (en) * | 1985-06-20 | 1986-04-29 | Eaton Corporation | Reservoir height extender for lash adjuster assembly |
EP0351033A1 (en) * | 1988-07-13 | 1990-01-17 | Fuji Oozx Inc. | Hydraulic valve lash adjuster |
EP0361637A1 (en) * | 1988-09-30 | 1990-04-04 | Fuji Oozx Inc. | Hydraulic valve lash adjuster |
EP0411215A1 (en) * | 1989-07-28 | 1991-02-06 | Fuji Oozx Inc. | Method of partitioning the internal space of a hollow cylindrical member |
DE19507240A1 (en) * | 1995-03-02 | 1996-09-05 | Schaeffler Waelzlager Kg | Part spherical support end of push rod with mushroom shaped extension |
DE19529044A1 (en) * | 1995-08-08 | 1997-02-13 | Schaeffler Waelzlager Kg | Hydraulic lash adjuster for a valve control of an internal combustion engine |
US5979377A (en) * | 1996-04-13 | 1999-11-09 | Ina Walzlager Schaffler Ohg | Hydraulic support element for a valve gear mechanism of an internal combustion engine |
DE19805511A1 (en) * | 1998-02-11 | 1999-08-12 | Bayerische Motoren Werke Ag | Control valve for hydraulic valve timing control for IC engine |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009030564A3 (en) * | 2007-09-04 | 2009-05-22 | Schaeffler Kg | Switchable support element for a valve train of an internal combustion engine |
WO2009030564A2 (en) * | 2007-09-04 | 2009-03-12 | Schaeffler Kg | Switchable support element for a valve train of an internal combustion engine |
US8973546B2 (en) | 2013-02-14 | 2015-03-10 | Otics Corporation | Lash adjuster |
US9080469B2 (en) | 2013-02-14 | 2015-07-14 | Otics Corporation | Lash adjuster |
US9206711B2 (en) | 2013-02-15 | 2015-12-08 | Otics Corporation | Lash adjuster |
EP2767684A1 (en) * | 2013-02-15 | 2014-08-20 | Otics Corporation | Lash adjuster |
US9010291B2 (en) | 2013-02-15 | 2015-04-21 | Otics Corporation | Lash adjuster |
US9091186B2 (en) | 2013-02-15 | 2015-07-28 | Otics Corporation | Lash adjuster |
WO2015021962A1 (en) * | 2013-08-13 | 2015-02-19 | Schaeffler Technologies Gmbh & Co. Kg | Hydraulic support element |
CN105431616A (en) * | 2013-08-13 | 2016-03-23 | 舍弗勒技术股份两合公司 | Hydraulic support element |
CN105431616B (en) * | 2013-08-13 | 2018-08-14 | 舍弗勒技术股份两合公司 | Fluid pressure type support component |
CN110573701A (en) * | 2017-05-08 | 2019-12-13 | 舍弗勒技术股份两合公司 | Tappet column |
CN110573701B (en) * | 2017-05-08 | 2021-07-30 | 舍弗勒技术股份两合公司 | Tappet column |
Also Published As
Publication number | Publication date |
---|---|
US6959677B2 (en) | 2005-11-01 |
DE502005000508D1 (en) | 2007-05-10 |
EP1564383B1 (en) | 2007-03-28 |
DE102004006903A8 (en) | 2006-01-12 |
US20050178351A1 (en) | 2005-08-18 |
DE102004006903A1 (en) | 2005-09-22 |
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