DE102015208453B3 - Camshaft adjuster with check valves on the volume accumulator - Google Patents
Camshaft adjuster with check valves on the volume accumulator Download PDFInfo
- Publication number
- DE102015208453B3 DE102015208453B3 DE102015208453.1A DE102015208453A DE102015208453B3 DE 102015208453 B3 DE102015208453 B3 DE 102015208453B3 DE 102015208453 A DE102015208453 A DE 102015208453A DE 102015208453 B3 DE102015208453 B3 DE 102015208453B3
- Authority
- DE
- Germany
- Prior art keywords
- control
- control piston
- camshaft adjuster
- check valve
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- RDYMFSUJUZBWLH-UHFFFAOYSA-N endosulfan Chemical compound C12COS(=O)OCC2C2(Cl)C(Cl)=C(Cl)C1(Cl)C2(Cl)Cl RDYMFSUJUZBWLH-UHFFFAOYSA-N 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000004519 manufacturing process 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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
-
- 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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
-
- 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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34426—Oil control valves
-
- 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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34426—Oil control valves
- F01L2001/3443—Solenoid driven oil control valves
-
- 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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34426—Oil control valves
- F01L2001/34433—Location oil control valves
Abstract
Vorgeschlagen ist ein Nockenwellenversteller einer Hubkolbenbrennkraftmaschine mit einem Steuerventil, das mit Druckmittel beaufschlagbare Arbeitskammern beherrscht, und mit einem Zentralgehäuse (1), das Arbeitskammeranschlüsse (A und B) und einen Druckanschluss (P) aufweist und mit einem beweglich geführten Steuerkolben (4) versehen ist, der Außenstege (6 bis 8) aufweist, die mit einer den Steuerkolben (4) umgebenden Steuerhülse (3) in Wirkverbindung stehen, wobei die Steuerhülse (3) in dem Zentralgehäuse (1) fixiert ist, und mit zumindest einem Rückschlagventil, mittels dessen die Arbeitskammern mit Druckmittel nachfüllbar sind, wobei das Rückschlagventil im Steuerventil angeordnet ist.Proposed is a camshaft adjuster of a reciprocating internal combustion engine with a control valve that controls pressurizable working chambers, and with a central housing (1), the working chamber ports (A and B) and a pressure port (P) and is provided with a movably guided control piston (4) , which has outer webs (6 to 8), which are in operative connection with a control sleeve (3) surrounding the control piston (4), the control sleeve (3) being fixed in the central housing (1), and having at least one check valve, by means of which the working chambers are refillable with pressure medium, wherein the check valve is arranged in the control valve.
Description
Die Erfindung bezieht sich auf einen Nockenwellenversteller einer Hubkolbenbrennkraftmaschine mit einem Steuerventil, das mit Druckmittel beaufschlagbare Arbeitskammern beherrscht, und mit einem Zentralgehäuse, das Arbeitskammeranschlüsse (A und B) und einen Druckanschluss (P) aufweist und mit einem beweglich geführten Steuerkolben versehen ist, der Außenstege aufweist, die mit einer den Steuerkolben umgebenden Steuerhülse in Wirkverbindung stehen, wobei die Steuerhülse in dem Zentralgehäuse fixiert ist, und mit zumindest einem Rückschlagventil, mittels dessen die Arbeitskammern mit Druckmittel nachfüllbar sind und wobei das Rückschlagventil im Steuerventil angeordnet ist.The invention relates to a camshaft adjuster of a reciprocating internal combustion engine with a control valve, which dominates pressurizable working chambers, and having a central housing, the working chamber ports (A and B) and a pressure port (P) and is provided with a movably guided control piston, the outer webs which are in operative connection with a control sleeve surrounding the control sleeve, wherein the control sleeve is fixed in the central housing, and with at least one check valve by means of which the working chambers are refillable with pressure medium and wherein the check valve is arranged in the control valve.
Nockenwellenversteller sind allgemein bekannt. Der Nockenwellenversteller der
Aus der
Ein weiteres Steuerventil ist aus der
Die
Aufgabe der Erfindung ist es daher, den Nockenwellenversteller der eingangs beschriebenen Art so zu verbessern, dass die beschriebenen Nachteile behoben werden. Dies soll mit einfachen kostengünstigen Mitteln erfolgen.The object of the invention is therefore to improve the camshaft adjuster of the type described above so that the disadvantages described are eliminated. This should be done with simple inexpensive means.
Gelöst wird die Aufgabe dadurch, dass der Steuerkolben hohl ausgebildet ist und Wandöffnungen zu den Zwischenräumen der Außenstege aufweist und dass die Wandöffnungen am Außenumfang des Steuerkolbens verschließbar sind. Dadurch ist es möglich, dass die jeweils angesteuerte Arbeitskammer bei Ungleichförmigkeiten am Rotor über die Wandöffnungen und das Rückschlagventil mittels Druckmittel aus dem hohlen Steuerkolben versorgt wird.The object is achieved in that the control piston is hollow and has wall openings to the intermediate spaces of the outer webs and that the wall openings are closable on the outer circumference of the control piston. This makes it possible that the respectively controlled working chamber is supplied with nonuniformities on the rotor via the wall openings and the check valve by means of pressure medium from the hollow control piston.
Das/die Rückschlagventil(e) sind im Steuerventil angeordnet. Dadurch können die Leitungen und Rückschlagventile in dem Vorsprung am Stator entfallen. Sie werden durch ein Rückschlagventil am Steuerkolben ersetzt.The check valve (s) are arranged in the control valve. As a result, the lines and check valves can be omitted in the projection on the stator. They are replaced by a check valve on the control piston.
Das Rückschlagventil kann als Rückschlagventilblech ausgebildet sein, das ringförmig mit oder ohne einzelne Rückschlagklappen ausgebildet ist. Dieses Rückschlagventilblech kann federnd ausgebildet und auf dem Steuerkolben drehgesichert sein, so dass es die Wandöffnungen freigibt oder verschließt. Es kann aber auch ein Band vorgesehen sein, an dem einzelne den Wandöffnungen zugeordnete Rückschlagklappen vorgesehen sind. Die Wandöffnungen sind in dem Zwischenraum des Steuerkolbens angeordnet, der je nach seiner Steuerstellung den Druckmittelzufluss zu dem Arbeitskammeranschluss A oder B zugeordnet ist. Dadurch kann sowohl eine Steuerung des Druckmittelzuflusses über den Zwischenraum zwischen den Außenstegen erfolgen als auch bei Unterdruck in der jeweiligen Arbeitskammer Druckmittel aus dem Hohlraum des Steuerkolbens nachgeliefert werden. Der andere Arbeitskammeranschluss A oder B steht dabei mit dem Hohlraum des Steuerkolbens in Wirkverbindung. Dabei ist der Hohlraum des Steuerkolbens mit dem Tankanschluss verbunden.The check valve may be formed as a check valve plate which is formed annularly with or without individual check valves. This check valve plate may be resilient and secured against rotation on the control piston, so that it releases or closes the wall openings. But it can also be provided a band to which individual the wall openings associated check valves are provided. The wall openings are arranged in the intermediate space of the control piston which, depending on its control position, is assigned the pressure medium inflow to the working chamber connection A or B. As a result, both a control of the pressure medium inflow over the gap between the outer webs can be carried out as well as under negative pressure in the respective working chamber pressure medium from the cavity of the control piston to be re-supplied. The other working chamber port A or B is in operative connection with the cavity of the control piston. In this case, the cavity of the control piston is connected to the tank connection.
Auch wenn mehrere Wandöffnungen im Steuerkolben vorgesehen sind, die durch das Rückschlagventilblech oder die Rückschlagklappen verschließbar sind, handelt es sich funktional um ein einziges Rückschlagventil, das je nach Stellung des Steuerkolbens alternativ einer bez. einer Gruppe von Arbeitskammern) zugeordnet ist, die jeweils über den Arbeitskammeranschluss A oder B mit Druckmittel beaufschlagt werden. Die erfinderische Ausgestaltung ersetzt daher die Volumenspeicher samt den einzelnen Leitungen und den einzelnen Rückschlagventilen.Even if a plurality of wall openings are provided in the control piston, which can be closed by the check valve plate or the check valves, it is functionally a single check valve, depending on the position of the control piston alternatively a bez. a group of working chambers) is assigned, which are acted upon in each case via the working chamber port A or B with pressure medium. The inventive design therefore replaces the volume storage together with the individual lines and the individual check valves.
Um sicherzustellen, dass der Hohlraum des Steuerkolbens immer mit Druckmittel gefüllt ist und die Arbeitskammern von dort Druckmittel und keine Luft ansaugen, ist der Tankanschluss an ein Leitungssystem angeschlossen, das zumindest teilweise in einem maschinenfesten Bauteil der Brennkraftmaschine angeordnet ist, wobei dieser Leitungsteil geodätisch höher angeordnet ist als das Steuerventil. Dadurch wird sichergestellt, dass der Hohlraum des Steuerkolbens nicht unabsichtlich geleert wird sondern dass dort immer hinreichend Druckmittel vorhanden ist.To ensure that the cavity of the control piston is always filled with pressure medium and the working chambers from there pressure fluid and no air suck, the tank connection is connected to a conduit system which is at least partially disposed in a machine-fixed component of the internal combustion engine, said conduit part arranged geodetically higher is as the control valve. This ensures that the cavity of the control piston is not unintentionally emptied but that there is always sufficient pressure medium.
Die Erfindung ist in den Zeichnungen beschrieben:The invention is described in the drawings:
In den
Das Zentralgehäuse
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Zentralgehäusecenter housing
- 22
- ÖlleithülseÖlleithülse
- A, BA, B
- ArbeitskammeranschlüsseChamber Connections
- PP
- Druckanschlusspressure connection
- TT
- Tankanschlusstank connection
- 33
- Steuerhülsecontrol sleeve
- 44
- Steuerkolbenspool
- 55
- Federfeather
- 6, 7, 86, 7, 8
- Außenstegeouter webs
- 99
- Wandöffnungenwall openings
- 1010
- RückschlagventilblechCheck valve plate
- 1111
- Nockenwellecamshaft
- 1212
- Bauteilcomponent
- 1313
- Leitungssystemline system
- 1414
- Bohrungdrilling
- 1515
- Leitungmanagement
- 1616
- Betätigungseinheitoperating unit
- 1717
- Dichtelementsealing element
- 1818
- Deckplattecover plate
- 1919
- Hohlwellehollow shaft
- 2020
- Flanschflange
- 2121
- Dichtringseal
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015208453.1A DE102015208453B3 (en) | 2015-05-07 | 2015-05-07 | Camshaft adjuster with check valves on the volume accumulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015208453.1A DE102015208453B3 (en) | 2015-05-07 | 2015-05-07 | Camshaft adjuster with check valves on the volume accumulator |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102015208453B3 true DE102015208453B3 (en) | 2016-06-30 |
Family
ID=56117035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102015208453.1A Expired - Fee Related DE102015208453B3 (en) | 2015-05-07 | 2015-05-07 | Camshaft adjuster with check valves on the volume accumulator |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102015208453B3 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018135586A1 (en) * | 2017-01-19 | 2018-07-26 | 株式会社デンソー | Valve timing adjustment device |
JP2018178972A (en) * | 2017-04-21 | 2018-11-15 | 株式会社デンソー | Valve timing adjustment device |
US10927721B2 (en) | 2018-09-20 | 2021-02-23 | Schaeffler Technologies AG & Co. KG | Oil reservoir for camshaft phaser |
DE102020113339A1 (en) | 2020-05-18 | 2021-11-18 | Schaeffler Technologies AG & Co. KG | Check valve and control valve for a camshaft adjusting device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011032805A1 (en) * | 2009-09-18 | 2011-03-24 | Schaeffler Technologies Gmbh & Co. Kg | Device for variably adjusting the control times of gas exchange valves of an internal combustion engine |
DE102010018200A1 (en) * | 2010-04-26 | 2011-10-27 | Schaeffler Technologies Gmbh & Co. Kg | Control valve, in particular proportional valve |
US20120152195A1 (en) * | 2010-12-20 | 2012-06-21 | Hilite Germany Gmbh | Hydraulic valve for an oscillating motor adjuster |
DE102012221720A1 (en) * | 2012-11-28 | 2014-06-18 | Schaeffler Technologies Gmbh & Co. Kg | Camshaft adjusting device and central valve for a camshaft adjusting device |
-
2015
- 2015-05-07 DE DE102015208453.1A patent/DE102015208453B3/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011032805A1 (en) * | 2009-09-18 | 2011-03-24 | Schaeffler Technologies Gmbh & Co. Kg | Device for variably adjusting the control times of gas exchange valves of an internal combustion engine |
DE102010018200A1 (en) * | 2010-04-26 | 2011-10-27 | Schaeffler Technologies Gmbh & Co. Kg | Control valve, in particular proportional valve |
US20120152195A1 (en) * | 2010-12-20 | 2012-06-21 | Hilite Germany Gmbh | Hydraulic valve for an oscillating motor adjuster |
DE102012221720A1 (en) * | 2012-11-28 | 2014-06-18 | Schaeffler Technologies Gmbh & Co. Kg | Camshaft adjusting device and central valve for a camshaft adjusting device |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018135586A1 (en) * | 2017-01-19 | 2018-07-26 | 株式会社デンソー | Valve timing adjustment device |
CN110199093A (en) * | 2017-01-19 | 2019-09-03 | 株式会社电装 | Valve timing adjustment device |
US10858965B2 (en) | 2017-01-19 | 2020-12-08 | Denso Corporation | Valve timing adjustment device |
CN110199093B (en) * | 2017-01-19 | 2021-04-23 | 株式会社电装 | Valve timing adjusting device |
JP2018178972A (en) * | 2017-04-21 | 2018-11-15 | 株式会社デンソー | Valve timing adjustment device |
US10927721B2 (en) | 2018-09-20 | 2021-02-23 | Schaeffler Technologies AG & Co. KG | Oil reservoir for camshaft phaser |
DE102020113339A1 (en) | 2020-05-18 | 2021-11-18 | Schaeffler Technologies AG & Co. KG | Check valve and control valve for a camshaft adjusting device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102011118622B4 (en) | Axial piston machine with outlet control | |
DE102012201567B4 (en) | Design of a hydraulic oil channel between a central valve and a volume accumulator of a camshaft adjuster | |
DE102015208453B3 (en) | Camshaft adjuster with check valves on the volume accumulator | |
DE102011084059B4 (en) | Control valve with integrated filter and camshaft phaser with the control valve | |
DE102012201551B4 (en) | Camshaft adjuster and method for filling a volume accumulator in a camshaft adjuster | |
DE102010019004B4 (en) | Swivel motor adjuster with a hydraulic valve | |
DE102012218802B4 (en) | Control valve for a camshaft adjuster system | |
DE102008030058B4 (en) | Camshaft adjusting device and suitable valve for it | |
DE19944535C1 (en) | Cam shaft adjuster for internal combustion engines has control slider with central return bore and controllable housing connections connectable to supply connection on return side | |
DE102005052481A1 (en) | Control valve for a device for the variable adjustment of the timing of gas exchange valves of an internal combustion engine | |
WO2009010332A1 (en) | Valve part for a hydraulic control valve | |
WO2014177317A1 (en) | Hydraulic valve and an oscillating motor adjuster | |
DE102009016186A1 (en) | Apparatus for variably adjusting timing of inlet and outlet gas exchange valves of internal combustion engine, has opening communicating with pressurizing medium line that is formed in cylinder head fixed component and opens into receptacle | |
DE102015213135B3 (en) | Control valve for a camshaft adjuster | |
DE102007053688A1 (en) | Control valve assembly for camshaft adjuster of internal combustion engine, comprises hollow cylindrical valve housing and hydraulic control valve for controlling pressure medium flow | |
DE102014115903B4 (en) | Hydraulic valve and swivel motor adjuster | |
DE102015213562A1 (en) | Camshaft adjuster with check valves | |
DE102016216363A1 (en) | Camshaft adjuster with a volume accumulator | |
DE102011000591B4 (en) | Central valve for a Schwenkmotorversteller | |
DE102014220727A1 (en) | Camshaft adjuster with central valve and check valves | |
DE102015103743A1 (en) | Axial piston machine with outlet control | |
DE102014222080A1 (en) | Midlock central valve and camshaft adjuster | |
DE102014223995A1 (en) | Control valve for a camshaft adjuster | |
DE102006005328A1 (en) | Pre-controlled three way pressure control valve cartridge, has sleeve that covers another sleeve in area of radial hole, and longitudinal hole and groove guided from area of another radial hole to former radial hole in mantle | |
DE102015206354A1 (en) | Control valve for a camshaft adjuster with internal tank connection |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |