WO2011032805A1 - Vorrichtung zur variablen einstellung der steuerzeiten von gaswechselventilen einer brennkraftmaschine - Google Patents
Vorrichtung zur variablen einstellung der steuerzeiten von gaswechselventilen einer brennkraftmaschine Download PDFInfo
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- WO2011032805A1 WO2011032805A1 PCT/EP2010/062212 EP2010062212W WO2011032805A1 WO 2011032805 A1 WO2011032805 A1 WO 2011032805A1 EP 2010062212 W EP2010062212 W EP 2010062212W WO 2011032805 A1 WO2011032805 A1 WO 2011032805A1
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- Prior art keywords
- pressure medium
- pressure
- volume
- hand
- chambers
- Prior art date
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Classifications
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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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
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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
- F01L1/34—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
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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
- F01L1/34—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
- F01L1/34409—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 by torque-responsive means
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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
- F01L1/34—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
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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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0475—Hollow camshafts
-
- 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
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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
- F01L1/34—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
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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
- F01L1/34—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
- F01L2001/34446—Fluid accumulators for the feeding circuit
Definitions
- the invention relates to a device for variably setting the timing of gas exchange valves of an internal combustion engine with a hydraulic phase adjusting device and at least one volume memory, wherein the phase adjusting device can be brought into drive connection with a crankshaft and a camshaft and at least one advance chamber and at least one retardation has Pressure medium supply pressure medium supplied or can be discharged from these, which can be adjusted by pressure medium supply to the advance chamber at the same pressure medium flow from the retard a phase angle of the camshaft relative to the crankshaft in the direction of early timing, wherein by pressure medium supply to the retardation at the same pressure medium flow from the ceremoniesverstellhunt a phase angle of the camshaft relative to the crankshaft in the direction of later timing can be adjusted, wherein the or de Volume accumulators can be supplied during the operation of the internal combustion engine pressure medium.
- a hydraulic phase device of the device integrated in a drive train via which torque is transmitted from the crankshaft to the camshaft.
- This drive train can be realized for example as a belt, chain or gear drive.
- Essential characteristics of such devices are the phase displacement speed and the demand for pressure medium. In order to be able to optimally adapt the phase position to the different driving situations, high phase adjustment speeds are desirable.
- an ever lower pressure medium requirement is required to be able to design the pressure medium pump of the internal combustion engine smaller or to be able to reduce the delivery rate when using regulated pressure medium pumps.
- Such a device is known, for example, from EP 0 806 550 A1.
- the device comprises a vane-type phase-adjusting device with a drive element, which is in drive connection with the crankshaft, and an output element which is non-rotatably connected to the camshaft.
- a plurality of pressure chambers are formed, wherein each of the pressure chambers is divided by means of a wing into two counteracting pressure chambers.
- the pressure medium required for the phase adjustment is provided by a pressure medium pump of the internal combustion engine and directed by means of a control valve selectively to the early or late adjustment.
- the pressure medium flowing out of the phase adjusting device is directed into a pressure medium reservoir, the oil sump of the internal combustion engine. The phase adjustment thus takes place by means of the system pressure provided by the pressure medium pump of the internal combustion engine.
- phase adjusting device is likewise designed in the manner of a vane-type and several early or late adjustment chambers are provided. hen.
- phase adjustment is not effected by pressurizing the pressure chambers by means of a pressure medium pump, but alternating torques acting on the camshaft are utilized. The alternating moments are caused by the rolling of the cams on each biased with a valve spring gas exchange valves. The rotational movement of the camshaft is braked during the opening of the gas exchange valves and accelerated during closing.
- the pressure chambers are connected to a pressure medium pump, but only to compensate for leaks from the phase adjusting device.
- the phase adjustment thus takes place by diverting pressure medium from the pressure chambers to be emptied into the pressure chambers to be filled under the pressure of the generated pressure peak.
- the pressure medium ejected from the pressure chambers is returned to a control valve which controls the pressure medium supply to or the pressure medium discharge from the pressure chambers.
- This pressure medium passes via check valves within the control valve to the inlet connection, which is connected to the pressure medium pump, wherein a portion of the pressure medium is ejected into the pressure medium reservoir of the internal combustion engine.
- the invention has for its object to provide a device for variable adjustment of the timing of gas exchange valves of an internal combustion engine, the Phasenverstell für to be increased.
- the object is achieved in that in addition at least two pressure medium channels are provided, wherein the first pressure medium channel on the one hand in one of the volume memory and on the other hand communicates with the Appelverstellhunt, wherein the second pressure medium channel opens on the one hand in one of the volume memory and on the other hand communicates with the retard and wherein each of the pressure medium channels is associated with a check valve, which prevents a pressure medium flow from the respective pressure chamber to the volume memory and can allow a reverse pressure medium flow.
- the device has a hydraulic phase adjusting device, which has at least two mutually acting pressure chambers, at least one Aktver adjusting chamber and at least one phoneverstellhunt.
- the invention is applicable to any type of hydraulic phase adjusting device, for example vane-type devices, as disclosed in EP 0 806 550 A1, as axial piston adjuster, as for example in DE 42 18 078 C1 discloses, or as Schwenkhebelversteller, as disclosed for example in US 4,903,650 A.
- the phase adjusting device has at least one drive element and an output element, wherein the drive element is in drive connection with a crankshaft of the internal combustion engine, for example via a chain, belt or gear drive.
- the output element is in drive connection with the camshaft. This can for example also be realized by a chain, belt or gear drive or a rotationally fixed connection between the camshaft and output element.
- pressure medium line is supplied to the pressure chambers and discharged from these.
- the pressure medium can for example be provided by a pressure medium pump of the internal combustion engine and the pressure medium to be discharged from the pressure chambers can be passed into a pressure medium reservoir, for example the oil sump of the internal combustion engine.
- a pressure medium reservoir for example the oil sump of the internal combustion engine.
- the device also has one or more volume storage for receiving pressure medium.
- the pressure medium can be stored without pressure or under pressure in the volume store (s). During operation of the internal combustion engine, the pressure medium is supplied to the volume accumulator (s).
- At least two pressure medium channels are provided, which connect the one or more volume memory with the pressure chambers.
- one end of each pressure medium channel opens into one of the volume accumulators, the other end of the first pressure medium channel communicating with the one or more advance chambers and the other end of the second pressure medium channel communicating with the retard chamber (s).
- the first pressure medium channel communicates exclusively with the or the advance chambers and not with the late adjustment chambers.
- the second pressure medium channel communicates exclusively with the retardation chambers or chambers and not with the advance chambers.
- volume memory Conceivable, for example, embodiments with only one volume memory, which communicates via the pressure medium channels with all the pressure chambers.
- a plurality of volume reservoirs are provided.
- a part of the volume memory can communicate exclusively with the advance chambers, while another part of the volume memory communicates exclusively with the retard chambers.
- each volume memory two pressure chambers, for example, a Vietnameseverstellhunt and a boss are assigned, with which the respective volume memory communicates via the pressure medium channels.
- first / second pressure medium channel communicates with all early / late adjustment
- several pressure medium channels may be provided, for example, a pressure medium channel per pressure chamber.
- a first (early) retardation chamber communicates via a pressure medium channel with a volume accumulator and the other (early) retard chambers pressure medium via the first (early) retard chamber is supplied from the volume memory.
- Each of the pressure medium channels is associated with a check valve, wherein each of the check valves prevents a pressure medium flow from the associated pressure chamber to the volume memory and a reverse pressure medium flow, with a suitable pressure difference upstream and downstream of the check valve permits.
- the check valves can be arranged, for example, within the pressure medium channel and designed, for example, as a ball or plate check valve. Likewise conceivable are embodiments in which a spring plate cooperates with an opening region of the associated pressure medium channel in the manner of a check valve.
- the volume accumulator can communicate or be connectable via one or more pressure medium lines to a pressure medium reservoir of the internal combustion engine.
- the phase angle of the camshaft relative to the crankshaft can be varied or held with this device on the one hand by the system pressure provided by the pressure medium pump of the internal combustion engine.
- To the Others can be used to change the moment acting on the camshaft to bring about a phase adjustment.
- the proportion of the alternating torque acting against the adjustment direction is intercepted and the proportion acting in the adjustment direction is utilized in order to increase the phase adjustment speed.
- the amount of the component of the alternating torque, which is to be used for phase adjustment increases continuously in dependence on the rotational position of the camshaft from 0 to a maximum value and falls back to zero.
- the output element is rotated relative to the drive element in the direction of the desired phase position.
- the pressure medium requirement of the pressure chambers to be filled increases to the same extent.
- the pressure medium flowing out of the pressure chambers to be emptied fills the volume reservoir (s).
- the pressure medium increases the pressure chambers to be filled, which can lead to the volume flow delivered by the pressure medium pump being insufficient to completely fill the pressure chambers to be filled.
- a negative pressure which has a braking effect on the adjustment speed in conventional devices.
- the pressure medium stored in the volume memory (s) can be used in these phases to fill the pressure chambers by the pressure accumulator (s) and the pressure medium channels provided. Due to the pressure difference between the pressure chambers and the volume or the accumulators open the check valves in the pressure medium channels to the pressure chambers to be filled, so that pressure medium can get into it. As a result of the additional pressure medium volume which is provided in the volume accumulator (s) and fed to the pressure chambers to be filled during these phases, the phase adjustment speed can be increased considerably in comparison to devices which are operated exclusively by the system pressure provided by the pressure medium pump.
- the pressure medium which is ejected from the pressure chambers to be emptied, leads directly and under high pressure to the pressure chambers to be filled. In this case, only a part of the pressure medium volume ejected from the pressure chambers reaches the pressure chambers to be filled. Another part is lost due to leakage. In some embodiments, this also losses incurred that the pressure medium is returned to a control valve, wherein a portion of the pressure medium in a pressure medium reservoir of the internal combustion engine is ejected and thus can no longer reach the pressure chambers to be filled.
- sufficient pressure medium is not available for filling the expanding pressure chambers, so that again a negative pressure occurs in these pressure chambers, which has a negative effect on the phase displacement speed.
- this loss is compensated by the pressure medium volume provided in the volume memory (s) and thus the phase adjustment speed is increased.
- the pressure medium is not passed under high alternating torques under the high pressure generated by these high pressure in the pressure chambers. Rather, the vacuum occurring in the pressure chambers to be filled is utilized to forward the pressure medium from the volume or the accumulators in the pressure chambers. Thus, no sudden phase changes occur, whereby the controllability of the device is maintained.
- the volume memory is arranged within the phase adjusting device.
- the stored pressure medium is in local proximity to the pressure chambers.
- pressure fluid losses between volume memory and pressure chambers are reduced and the response of the device improved.
- the volume accumulator is connectable via one or more pressure medium lines with a pressure medium reservoir, wherein the mouth region of the pressure medium channels in the volume memory with larger Distance from the axis of rotation of the phase adjusting device is arranged as the mouth region of the pressure medium lines in the volume memory. This ensures that excess pressure medium can be removed from the volume accumulator to the pressure medium reservoir of the internal combustion engine. Since the phase adjusting device rotates about its axis of rotation is ensured due to the centrifugal force that still pending at the mouth areas of the pressure medium channels in the volume or the pressure medium for further transport to the pressure chambers.
- a check valve is associated with a pressure medium flow from the pressure medium reservoir to the volume memory prevents and allow a reverse flow of pressure medium. If this check valve is dispensed with, the pressure in the volume reservoirs is prevailing, generally atmospheric pressure. By the check valve, the pressure level of the stored pressure medium can be raised, whereby the support of the phase adjustment by the volume or the memory starts even at smaller alternating torques.
- the volume or the accumulator pressure medium can be supplied directly from a pressure medium pump.
- a pressure medium pump branch off a pressure medium line directly from the Motorol desire and open, bypassing the pressure chambers in the volume memory.
- the pressure medium via a control valve, which controls the pressure medium flow to and from the pressure chambers, reach the volume or the stores. This ensures that the volume accumulator is adequately supplied with pressure medium at all times.
- pressure medium can be supplied to the volume accumulator from the pressure chambers. With each phase adjustment, one group of pressure chambers expands at the expense of the other pressure chambers.
- the pressure fluid flowing out of the other pressure chambers can be supplied to the volume accumulator (s) and reused, as a result of which the delivery flow of the pressure medium pump can be lowered.
- the pressure medium ejected from the pressure chambers can be controlled, for example, by a control unit. erventil, which controls the pressure medium flows from and to the pressure chambers are passed to the or the volume memory.
- the device has a control valve, by means of which the pressure medium supply can be controlled by a pressure medium pump to the pressure chambers and the pressure medium discharge from the pressure chambers.
- the control valve has an inlet port, a first and a second working port and at least a first volume storage port, wherein a first pressure medium line is provided which communicates on the one hand with the first working port and on the other hand into the advance chamber, wherein a second pressure medium line is provided, which communicates on the one hand with the second working port and on the other hand into the retard, wherein a third pressure medium line is provided which communicates on the one hand with the inlet port and on the other hand with a pressure medium pump, wherein at least a fourth pressure medium line is provided, on the one hand with the Volume memory connection communicates and on the other hand opens into the volume memory and wherein by means of the control valve, a connection between the inlet port and the first and the second working port and a connection between the volume storage port and the other working port can be made.
- the control valve has an inlet connection, a first and a second working connection, two volume storage connections and a discharge connection, wherein a first pressure medium line is provided which communicates with the first working connection on the one hand and opens into the advance chamber on the other hand second pressure medium line is provided which communicates on the one hand with the second working port and on the other hand into the phoneverstell- chamber, wherein a third pressure medium line is provided which communicates on the one hand with the inlet port and the other with a pressure medium pump, two fourth pressure medium lines are provided, on the one hand in open the volume memory and on the other hand with one each communicate the volume storage ports, with a fifth pressure medium line provided, which communicates on the one hand with the drain port and the other with a pressure medium reservoir, wherein by means of the control valve, a connection between the inlet port and the first and the second working port, a connection between one of the volume storage ports and the other working port and a connection between the other volume storage port and the drain port can be made.
- the pressure fluid flows to be filled to the pressure chambers and the pressure fluid outflows are controlled by the pressure chambers to be emptied via a control valve which simultaneously controls the filling of the volume or the memory from the pressure chambers to be emptied.
- the pressure medium flows are conducted via control edges within the control valve and can be influenced by the design of the flow areas existing between the control edges.
- the device can operate both in a mode in which the phase adjustment is effected by the system pressure generated by the pressure medium pump and in a mode in which the change moment is used for phase adjustment. In this case, the change from one to the other mode takes place automatically in that the delivery volume of the pressure medium pump no longer covers or recovers the pressure medium requirement of the pressure chambers to be filled.
- the phase adjustment can be controlled by means of a sequence control, ie the adjustment speed is determined by the amount of pressure flowing from the pressure chambers and not by the amount of the pressure chambers to be filled pressure medium.
- This can be realized in a simple manner in that a flow area of the pressure chambers to the volume or the accumulator or the pressure medium reservoir is always designed smaller than a flow area of the pressure medium pump to the pressure chambers. This prevents air from being sucked into the pressure chambers.
- the pressure medium flow to and from the pressure chambers in response to a control parameter of the control valve does not increase abruptly, so that a simple and stable control of the device is ensured.
- the pressure medium channels, which connect the volume or the storage with the pressure chambers for example, open directly into the corresponding pressure chambers or in the pressure medium lines that connect the working ports of the control valve with the pressure chambers.
- FIG. 1 is a very diagrammatic view of an internal combustion engine
- FIG. 2 is a longitudinal section through a first embodiment of a device according to the invention
- FIG. 3 shows a plan view of the phase adjusting device from FIG. 2 along the arrow III
- FIG. 4 shows a schematic representation of the device from FIG. 2,
- Figure 9 is a schematic representation of a third invention
- FIG. 1 shows an internal combustion engine 1 is sketched, wherein a seated on a crankshaft 2 piston 3 is indicated in a cylinder 4.
- the crankshaft 2 is in the illustrated embodiment via a respective traction drive 5 with an intake camshaft 6 and exhaust camshaft 7 in combination, with a first and a second device 1 1 for variable adjustment of the timing of gas exchange valves 9,10 an internal combustion engine 1 for a relative rotation between Crankshaft 2 and the camshafts 6, 7 can provide.
- Cams 8 of the camshafts 6, 7 actuate one or more Abgasgas crisp- valves 9 or one or more Auslrawgas cateringventile 10.
- Figure 2 shows a first embodiment of a device according to the invention 1 1 in longitudinal section.
- Figure 3 shows a plan view of a phase adjusting device 12 of the device 1 1, wherein the arranged in the line of sight side cover 17 has been omitted.
- the device 1 1 has a phase adjusting device 12 and a control valve 13.
- the phase adjusting device 12 has a drive element 15 and an output element 16.
- a sprocket 14 is arranged, by means of which via a chain drive, not shown, torque can be transmitted from the crankshaft 2 to the drive element 15.
- On the axial side surfaces of the drive element 15 each have a side cover 17 is rotatably attached.
- the output element 16 is designed in the form of an impeller and has a substantially cylindrical hub member 18, extend from the outer cylindrical surface in the illustrated embodiment, two wings 19 in the radial direction outwards and are integrally formed with the hub member 18.
- a central passage opening of the output element 16 is penetrated by a hollow camshaft 6, 7, wherein the output element 16 by means of a press fit with the Camshaft 6, 7 is rotatably connected.
- projections 21 extend radially inwards.
- the projections 21 are formed integrally with the peripheral wall 20.
- the drive element 15 is mounted by means of radially inwardly extending peripheral walls of the projections 21 relative to the output member 16 rotatably mounted thereon.
- a pressure medium space 22 is formed between two respective projections 21 adjacent in the circumferential direction.
- Each of the pressure medium spaces 22 is circumferentially bounded by opposing, substantially radially extending boundary walls 23 of adjacent projections 21, in the axial direction of the side covers 17, radially inwardly of the hub member 18 and radially outwardly of the peripheral wall 20.
- one wing 19 projects in two of the four pressure medium spaces 22, wherein the wings 19 are designed in such a way that they rest against both the side covers 17 and the peripheral wall 20.
- Each vane 19 thus divides the respective pressure medium chamber 22 into two counteracting pressure chambers 24, 25, an advance chamber 24 and a retard chamber.
- Each of the pressure chambers 24, 25 communicates with one of the volume accumulators 31 via a pressure medium channel 32a, b formed in the projections 21.
- a first pressure medium channel 32a connects a volume memory 31 with an advance chamber 24 and a second pressure medium channel 32b a volume memory 31 with a retard 25.
- Each pressure medium channel 32a, b is associated with a first check valve 33, which a pressure medium flow from the respective pressure chamber 24, 25th prevents the respective volume memory 31 and a pressure medium flow from the volume memory 31 to the respective pressure chamber 24, 25 allows as soon as a defined pressure difference between the pressure chamber 24, 25 and the volume memory 31 prevails.
- the first check valves 33 can be arranged, for example, within the pressure medium channels 32a, b and used as ball valves. check valves be formed.
- the Abthebselement 16 is received in the drive member 15 and rotatably supported within a defined Winkelbreichs to this.
- the angle range is limited in one direction of rotation of the driven element 16 in that the wings 19 come into contact with a corresponding boundary wall 23 (early stop 23a) of the associated pressure medium spaces 22.
- the angular range in the other direction of rotation is limited by the fact that the wings 19 come into contact with the other boundary walls 23 of the associated pressure medium spaces 22, which serve as a late stop 23b.
- the phase angle of the output element 16 can be adjusted relative to the drive element 15 in the direction of earlier control times.
- the output element 16 is rotated in the direction of rotation of the device 1 1, characterized by the arrow 29, relative to the drive element 15.
- the phase position of the output element 16 can be adjusted relative to the drive element 15 in the direction of later control times.
- the output element 16 is rotated counter to the direction of rotation 29 of the device 1 1 relative to the drive element 15.
- phase position By pressurizing both groups of pressure chambers 24, 25, the phase position can be kept constant. Alternatively it can be provided to pressurize none of the pressure chambers 24, 25 during phases of constant phase position with pressure medium.
- hydraulic pressure medium usually the lubricating oil of the internal combustion engine 1 is used.
- the control valve 13 has a Zulaufan- P, a volume storage port V-, and two working ports A, B on.
- the hydraulic circuit has five pressure medium lines 26a, b, p, v, t.
- the first pressure medium line 26a communicates on the one hand with the first working port A and on the other hand flows into the advance chambers 24.
- the second pressure medium line 26b communicates on the one hand with the second working port B and on the other hand flows into the retardance chambers 25.
- the third pressure medium line 26p connects a pressure medium pump 27 with the inlet port P, wherein a second check valve 34 prevents a flow of pressure medium from the control valve 13 to the pressure medium pump 27 and may allow a reverse pressure medium flow.
- the fourth pressure medium line 26v communicates on the one hand with the volume storage connection V-, and on the other hand flows into the volume storage 31.
- the fifth pressure medium line 26t opens on the one hand in the volume accumulators 31 and on the other hand into a pressure medium reservoir 28, for example an oil sump of the internal combustion engine 1. In this case, the fifth pressure medium line directly the pressure medium reservoir 28 open (solid line in Figure 4) or with the interposition of a third check valve 50 (dashed line in Figure 4).
- the control valve 13 can assume three control positions S1 -S3.
- the inlet connection P is connected to the first working connection A and the second working connection B is connected to the volume storage connection V-.
- the second control position S2 there is no connection between the working ports A, B on the one side and the inlet port P and the volume storage port V-, on the other side.
- the third control position S3 the inlet connection P is connected to the second working connection B and the first working connection A is connected to the volume storage connection V-.
- each gas exchange valve 9, 10 is opened by means of a cam 8 periodically against the force of a valve spring 30 ( Figure 1) and closed again.
- a braking torque which is the vector product of the force of the valve spring 30 with the Lever arm of the cam 8 corresponds.
- the closing of the gas exchange valve 9, 10 acts on the camshaft 6, 7 an accelerating torque, which corresponds to the vector product of the force of the valve spring 30 with the lever arm of the cam 8.
- a periodic alternating torque acts on the camshaft 6, 7.
- the alternating moment causes the wings 19 to be urged counter to the direction of rotation 29 of the phase adjusting device 12 when the cam 8 runs up.
- the pressure in the advance chambers 24 is increased and the pressure in the retard chambers 25 is lowered.
- the wings 19 are urged in the direction of rotation 29 of the phase adjusting device 12, whereby the pressure in the Vietnameseverstellhuntn 24 decreases and the pressure in the retard 25 increases.
- the control valve 13 assumes the first control position S1.
- the pressure medium conveyed by the pressure medium pump 27 reaches the first working port A via the third pressure medium line 26p, the inlet port P and the first pressure medium line 26a to the Appelverstellhuntn 24.
- the wings 19 are moved within the respective pressure medium spaces 22 in the direction of rotation 29 of the phase adjusting device 12.
- volume accumulators 31 prevails due to the opening into the pressure medium reservoir 28 fifth pressure medium line 26t atmospheric pressure, or in embodiments in which a third check valve 50 is provided in the fifth pressure medium line 26t, defined by the third check valve 50 higher pressure level, but which less than the pressure level within the late Verstellhuntn 25 is. Due to the higher pressure level in the retardation chambers 25, the first check valves 33, which connect the volume accumulators 31 with the retard chambers 25, block a flow of pressure medium from the volume accumulators 31 into the retard chambers 25.
- the wings 19 are held in their position, whereby the pressure in the retardation chambers 25 does not drop and thus does not fall below the pressure prevailing in the volume accumulators 31 pressure.
- the first check valves 33 prevent a flow of pressure medium from the volume accumulators 31 to the retard chambers 25. Consequently, in the case of a torque directed counter to the phase adjustment direction, there is no reversal of the device 11, but rather the current phase position is maintained. If a phase adjustment is requested in the direction of later control times, the control valve 13 assumes the third control position S3.
- the volume of the retard chambers 25 increases at the expense of the advance chambers 24 and the wings 19 are displaced counter to the direction of rotation 29 of the phase adjuster 12.
- the volume memory 31 are filled by the running out of the advance chambers 24 pressure medium, wherein excess pressure medium via the fifth pressure medium line 26t in the pressure medium reservoir 28 against atmospheric pressure or the third check valve 50 is ejected.
- a higher pressure level prevails both in the advance chambers 24 and in the retard adjustment chambers 25 than in the volume accumulators 31, whereby the first check valves 33 prevent a pressure medium flow from the volume accumulators 31 into the pressure chambers 24, 25.
- the pressure level generated by the alternating moment in the pressure chambers 24, 25 exceeds the operating pressure delivered by the pressure medium pump 27, a distinction must again be made between a supporting moment acting in the adjustment direction and a moment acting counter to the adjustment direction.
- volume accumulators 31 prevails due to the opening into the pressure fluid reservoir 28 fifth pressure medium line 26t atmospheric pressure or in embodiments in which a third check valve 50 is provided in the fifth pressure medium line 26t, defined by the third check valve 50 higher pressure level, but which lower as the pressure level within the retard adjustment chambers 25 is. Due to the higher pressure level in the advance chambers 24, the first check valves 33, which connect the volume accumulators 31 to the advancing chambers 24, block a flow of pressure medium from the volume accumulators 31 into the advancing chambers 24.
- pressure medium from the pressure medium pump 27 reaches the retard chambers 25 via the supply port P, the second working port B and the second pressure medium line 26b. If the pressure medium requirement of the pressure chambers 25 to be filled exceeds the volumetric flow delivered by the pressure medium pump 27, the pressure drops into the second phoneverstellhuntn 25 under the pressure prevailing in the volume accumulators 31 pressure. Thus, the first check valves 33 release a pressure medium flow through the second pressure medium channels 32 b from the volume stores 31 to the retard chambers 25.
- the retardation is supported at a supportive acting moment compared to conventional devices 1 1 by a stored in the volume memory 31 pressure medium volume.
- devices 1 1 in which the emerging from the advance chamber 24 pressure fluid to the inlet port P of the control valve 13 and passes from there to the retard 25, there is the advantage that leakage losses offset by the already located in the volume accumulator 31 pressure fluid volume and even overcompensated.
- the Phasenverstell für Inc. is reliably increased.
- the camshaft 6, 7 is accelerated and thus the wings 19 are urged in the direction of the early stop 23a.
- the pressure in the retard chambers 25 increases, with the pressure medium being prevented from exiting the retard chambers 25 by the second check valve 34 and the first check valves 33.
- the wing 19 is held in its position, as a result of which the pressure in the advance chambers 24 does not drop and thus does not fall below the pressure prevailing in the volume accumulators 31.
- the first check valves 33 prevent a flow of pressure medium from the volume accumulators 31 to the advance chambers 24. Consequently, in a direction opposite to the phase adjustment direction no turning back of the device 1 1 occurs, but the current phase position is maintained.
- the control valve 13 assumes the second control position S2. In this tax position, the working Conclusions A, B closed. Thus, the pressure medium conveyed by the pressure medium pump 27 to the inlet connection P does not reach any of the working connections A, B. Likewise, no pressure medium from the pressure chambers 24, 25 reaches the volume storage connection V-,. Upon the occurrence of pressure peaks in the pressure chambers 24, 25, which are caused by the acting on the camshaft 6, 7 alternating torque, an outlet of pressure medium from the pressure chambers 24, 25 prevented by the closed working ports A, B. The wings 19 are thus hydraulically clamped between the pressure chambers 24, 25, whereby the current phase position is maintained.
- FIGs 5 and 6 show the detail Z of Figure 2 in an enlarged view, wherein the control valve 13 in the first ( Figure 5) and third control position S3 ( Figure 6) is shown.
- the first and the second pressure medium line 26a, b are formed as axial staggered radial bores within the output element 16.
- two fourth pressure medium lines 26v are provided, which are likewise designed as axially offset radial bores within the output element 16.
- the first, the second and the fourth pressure medium lines 26a, b, v are arranged offset to one another in the circumferential direction of the output element 16 (see FIG. 3), but are shown in FIGS. 5 and 6 for a better explanation in one plane.
- the first, the second and the fourth pressure medium lines 26a, b, v open on the one hand into the advance chambers 24 and the late adjustment chambers 25 and the volume accumulators 31, respectively.
- the other ends of the pressure medium lines 26a, b, v open into radial bores of the camshaft 6, 7, which in turn communicate with the first working port A and the second working port B or two volume storage ports V-, the control valve 13, which on a valve housing 36 of the Control valve 13 are formed as radial openings 37.
- a control piston 38 is arranged, which by means of an actuating unit, not shown against the force of a spring 39 in the axial direction within the a spring 39 in the axial direction within the valve housing 36 can be moved.
- the control piston 38 can be moved and held in any position between the position shown in Figure 5 and the position shown in Figure 6.
- pressure medium enters into the interior of the valve housing 36 and further into the interior of the control piston 38 via the inlet port P. From there, the pressure medium passes through a piston opening 40 to the first working port A. In this case, the pressure medium passes through a first control surface 41, which is defined by the overlap of the piston opening 40 with the radial opening 37 of the first working port A. From the first working port A, the pressure medium passes through the first pressure medium line 26a to the Appelverstellhuntn 24. At the same time passes pressure medium from the retard adjustment chambers 25 via the second pressure medium line 26b to the second working port B.
- first annular groove 42 which on the outer surface of the Control piston 38 is formed with the volume storage port V-, in conjunction.
- the pressure medium passes through a second control surface 43, which is defined by the overlap of the radial opening 37 of the second working connection B with the first annular groove 42.
- the second control surface 43 is made smaller than the first control surface 41 (flow control).
- the first control position S1 can be realized by a plurality of positions of the control piston 38 relative to the valve housing 36.
- the control piston 38 must be in a position in which pressure medium from the inlet port P to the first working port A and pressure medium from the second working port B to the volume storage port V-, can pass.
- the first and second control surfaces 41, 43 and, analogously, the pressure medium flow to and from the pressure chambers 24, 25 are greater the further the control piston 38 approaches the position shown in FIG.
- control valve 13 If the control valve 13 is in the third control position S3 (FIG. 6), pressure medium enters into the interior of the valve housing 36 and further into the interior of the control piston 38 via the inlet port P. From there, the pressure medium passes via the piston opening 40 to the second working port B. The pressure medium passes through a third control surface 44, which is defined by the overlap of the piston opening 40 with the radial opening 37 of the second working port B. At the same time, pressure medium from the advance chambers 24 passes via the first pressure medium line 26a to the first working port A. This is connected via a second annular groove 45, which on the outer circumferential surface of the control piston 38 is formed with the volume storage port V-, in conjunction.
- the pressure means passes through a fourth control surface 46 defined by the overlap of the radial port 37 of the first working port A with the second annular groove 45.
- the fourth control surface 46 is made smaller than the third control surface 44 (process control).
- the third control position S3 can be realized by a plurality of positions of the control piston 38 relative to the valve housing 36.
- the control piston 38 must be in a position in which pressure medium from the inlet port P to the second working port B and pressure medium from the first working port A to the volume storage port V- can run.
- FIGS. 7 and 8 show a second embodiment analogous to the illustrations of FIGS. 5 and 6. This embodiment is largely identical to the first embodiment, so that only the differences are discussed below.
- a fourth pressure medium line 26v is provided, which communicates on the one hand with the volume accumulators 31 and on the other hand with the single volume accumulator connection V-.
- the fourth pressure medium line 26v is arranged in the axial direction between the first and second pressure medium line 26a, b.
- the control piston 38 has two piston openings 40, 47 and an annular groove 42 on its outer circumferential surface, wherein the piston openings 40, 47 and the annular groove 42 are arranged spaced from each other in the axial direction.
- the annular groove 42 is arranged between the piston openings 40, 47.
- pressure medium enters the interior of the valve housing 36 and further into the interior of the control piston 38 via the inlet port P. From there, the pressure medium passes via the first piston opening 40 to the first working port A. The pressure medium passes through a first control surface 41 which is defined by the overlap of the first piston opening 40 with the radial opening 37 of the first working port A. At the same time, pressure medium from the late adjustment chambers 25 reaches the second working connection B via the second pressure medium line 26b Connection. On the way from the second working port B to the volume storage port Vi the pressure medium passes through a second control surface 43, which is defined by the overlap of the radial opening 37 of the second working port B with the annular groove 42.
- the second control surface 43 is made smaller than the first control surface 41 (sequence control).
- control valve 13 If the control valve 13 is in the third control position S3 (FIG. 8), pressure medium enters into the interior of the valve housing 36 and further into the interior of the control piston 38 via the inlet port P. From there, the pressure medium passes via the second piston opening 47 to the second working port B. The pressure medium passes through a third control surface 44, which is defined by the overlap of the second piston opening 47 with the radial opening 37 of the second working port B. At the same time, pressure medium from the advance chambers 24 passes via the first pressure medium line 26a to the first working port A.
- FIG. 9 shows a further embodiment of a device 11 according to the invention.
- the third embodiment is largely identical to the first two embodiments, so that only the deviations are explained below.
- the control valve 13 has two volume storage ports V- ,, V 2 and an additional drain port T. Both volume storage ports Vi, V 2 are connected via a fourth pressure medium line 26v to the volume accumulators 31.
- the outlet connection T is connected to the pressure medium reservoir 28 by means of the fifth pressure medium line 26t.
- the control valve 13 can in turn assume three control positions S1 -S3. In the first control position S1, the inlet port P with the first working port A, the second working port B with the second volume storage port V 2 and the first volume storage port V-, with the drain port T is connected.
- the inlet connection P is connected to the second working connection B, the first working connection A to the first volume storage connection V-, and the second volume storage connection V 2 is connected to the discharge connection T.
- Figures 10 and 11 show the control valve 13 of the third embodiment and the associated pressure medium lines 26a, b, v, t.
- the first, the second and the two fourth pressure medium line 26a, b, v are in turn formed as axially offset from one another, radial bores within the output element 16.
- the first and second pressure medium line 26a, b in turn open into the corresponding pressure chambers 24, 25 and are connected to the working ports A, B.
- the fourth pressure medium lines 26v open into the volume memory 31 and are each connected to one of the volume storage ports Vi, V 2 .
- the fifth pressure medium line 26t is realized as a radial opening 37 in the camshaft 6, 7 and communicates with the discharge port T and the pressure medium reservoir 28.
- a control piston 38 which can be positioned in the axial direction to the valve housing 36 is arranged.
- the control piston 38 is provided with a radial piston opening 40, which is arranged between two annular grooves 42, 45 formed on the outer circumferential surface of the control piston 38. If the control valve 13 is in the first control position S1 (FIG. 10), pressure medium enters into the interior of the valve housing 36 and further into the interior of the control piston 38 via the inlet port P. From there, the pressure medium passes through the piston opening 40 to the first working port A. In this case, the pressure medium passes through a first control surface 41, which by the overlap of the piston opening 40 with the radial opening 37 of the first working Final A is defined. From the first working port A, the pressure medium passes via the first pressure medium line 26a to the advance chambers
- pressure medium from the retard adjustment chambers 25 reaches the second working connection B via the second pressure medium line 26b.
- the latter is connected to the second volume storage connection V 2 via a second annular groove 45.
- the pressure medium passes through a second control surface 43 which is defined by the overlap of the radial opening 37 of the second working port B with the second annular groove 45. If the volume accumulators 31 are completely filled, pressure medium from the volume accumulators 31 passes via the fourth pressure medium line 26v to the first volume accumulator connection Vi, which is connected to the outlet connection T via the first annular groove 42.
- the pressure medium passes through a third control surface 44, which is defined by the overlap of the radial opening 37 of the first volume storage connection Vi with the first annular groove 42.
- the third control surface 44 is smaller than the second control surface 43 and made smaller than the first control surface 41.
- control valve 13 If the control valve 13 is in the third control position S3 (FIG. 11), pressure medium enters into the interior of the valve housing 36 and further into the interior of the control piston 38 via the inlet port P. From there, the pressure medium passes via the piston opening 40 to the second working port B. The pressure medium passes through a fourth control surface 46, which is defined by the overlap of the piston opening 40 with the radial opening 37 of the second working end B. From the second working port B, the pressure medium passes through the second pressure medium line 26 b to the retard adjustment chambers
- pressure medium from the advance chambers 24 passes through the first pressure medium line 26a to the first working port A. This is via the first annular groove 42 with the first volume storage port V-, in conjunction.
- the pressure medium passes through a fifth control surface 48, which is defined by the overlap of the radial opening 37 of the first working port A with the first annular groove 42. If the volume accumulators 31 are completely filled, pressure medium from the volume accumulators 31 reaches the second volume accumulator connection V 2 via the fourth pressure medium line 26 v, which is connected to the outlet connection T via the second annular groove 42.
- the pressure medium passes through a sixth control surface 49, which is defined by the overlap of the radial opening 37 of the second volume storage port V 2 with the second annular groove 45.
- the sixth control surface 49 is smaller than the fourth control surface 46 and smaller than the fifth control surface 48 executed.
- the devices 1 1 presented are distinguished by significantly increased phase adjustment speeds. In addition, occur due to the realized flow control with small displacements of the control piston 38, no high changes in the pressure medium inflow to the pressure chambers to be filled 24, 25, whereby the control of the phase position is greatly facilitated.
- a further advantage is that the positions of the control piston 38 to be adjusted relative to the valve housing 36 is independent of whether the volume flow delivered by the pressure medium pump 27 covers or does not cover the pressure medium requirement of the pressure chambers 24, 25 to be filled. Thus, only one control strategy is needed, which can be applied to both operating states of the internal combustion engine 1, whereby the control of the device 1 1 is further simplified.
- a first working connection B second working connection P inlet connection
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Abstract
Description
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Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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JP2012529190A JP5579271B2 (ja) | 2009-09-18 | 2010-08-23 | 内燃機関のガス交換弁の制御時間を可変に調整するための装置 |
US13/386,217 US8763574B2 (en) | 2009-09-18 | 2010-08-23 | Device for variably adjusting the control times of gas exchange valves of an internal combustion device |
BR112012005958A BR112012005958A2 (pt) | 2009-09-18 | 2010-08-23 | dispositivo para ajuste variável dos tempos de controle de válvulas de troca de gás de um motor de combustão interna |
CN201080041402.6A CN102549241B (zh) | 2009-09-18 | 2010-08-23 | 用于可变地调整内燃机换气阀的配气正时的设备 |
RU2012115466/06A RU2012115466A (ru) | 2009-09-18 | 2010-08-23 | Устройство для изменяемой настройки времени управления газообменными клапанами двигателя внутреннего сгорания |
IN553DEN2012 IN2012DN00553A (de) | 2009-09-18 | 2010-08-23 | |
EP10745609.7A EP2478189B1 (de) | 2009-09-18 | 2010-08-23 | Vorrichtung zur variablen einstellung der steuerzeiten von gaswechselventilen einer brennkraftmaschine |
Applications Claiming Priority (2)
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DE102009042202.1 | 2009-09-18 | ||
DE102009042202A DE102009042202A1 (de) | 2009-09-18 | 2009-09-18 | Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
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WO2011032805A1 true WO2011032805A1 (de) | 2011-03-24 |
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PCT/EP2010/062212 WO2011032805A1 (de) | 2009-09-18 | 2010-08-23 | Vorrichtung zur variablen einstellung der steuerzeiten von gaswechselventilen einer brennkraftmaschine |
Country Status (10)
Country | Link |
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US (1) | US8763574B2 (de) |
EP (1) | EP2478189B1 (de) |
JP (1) | JP5579271B2 (de) |
KR (1) | KR101632097B1 (de) |
CN (1) | CN102549241B (de) |
BR (1) | BR112012005958A2 (de) |
DE (1) | DE102009042202A1 (de) |
IN (1) | IN2012DN00553A (de) |
RU (1) | RU2012115466A (de) |
WO (1) | WO2011032805A1 (de) |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4903650A (en) | 1988-07-23 | 1990-02-27 | Daimler-Benz Ag | Apparatus for relative angular adjustment between two shafts in drive connection |
US5107804A (en) | 1989-10-16 | 1992-04-28 | Borg-Warner Automotive Transmission & Engine Components Corporation | Variable camshaft timing for internal combustion engine |
DE4218078C1 (de) | 1992-06-01 | 1994-01-05 | Schaeffler Waelzlager Kg | Vorrichtung zur selbsttätigen, kontinuierlichen Winkelverstellung zwischen zwei in Antriebsverbindung stehenden Wellen |
EP0806550A1 (de) | 1996-03-28 | 1997-11-12 | Aisin Seiki Kabushiki Kaisha | Ventilzeitsteuerungsvorrichtung |
EP1607590A2 (de) * | 2004-06-15 | 2005-12-21 | INA-Schaeffler KG | Brennkraftmaschine mit einer hydraulischen Vorrichtung zur Drehwinkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle |
US20090133652A1 (en) | 2007-11-28 | 2009-05-28 | Denso Corporation | Valve timing control apparatus |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2641832B1 (fr) * | 1989-01-13 | 1991-04-12 | Melchior Jean | Accouplement pour la transmission de couples alternes |
DE19529277A1 (de) * | 1995-08-09 | 1997-02-13 | Bayerische Motoren Werke Ag | Verfahren zum Betreiben einer hydraulisch gesteuerten/geregelten Nockenwellen-Verstellvorrichtung für Brennkraftmaschinen |
JP3365199B2 (ja) * | 1996-03-28 | 2003-01-08 | アイシン精機株式会社 | 弁開閉時期制御装置 |
JP4147435B2 (ja) * | 1998-01-30 | 2008-09-10 | アイシン精機株式会社 | 弁開閉時期制御装置 |
JP4224944B2 (ja) * | 2000-03-01 | 2009-02-18 | トヨタ自動車株式会社 | 内燃機関のバルブタイミング制御装置 |
JP2002047952A (ja) * | 2000-07-31 | 2002-02-15 | Toyota Motor Corp | 内燃機関のバルブタイミング制御装置 |
US6666181B2 (en) * | 2002-04-19 | 2003-12-23 | Borgwarner Inc. | Hydraulic detent for a variable camshaft timing device |
US6935290B2 (en) * | 2003-08-04 | 2005-08-30 | Borgwarner Inc. | Avoid drawing air into VCT chamber by exhausting oil into an oil ring |
JP4160545B2 (ja) * | 2004-06-28 | 2008-10-01 | 株式会社デンソー | バルブタイミング調整装置 |
JP4609729B2 (ja) * | 2006-04-27 | 2011-01-12 | アイシン精機株式会社 | 弁開閉時期制御装置 |
JP2008232010A (ja) * | 2007-03-20 | 2008-10-02 | Denso Corp | バルブタイミング調整装置 |
JP2009103107A (ja) * | 2007-10-25 | 2009-05-14 | Denso Corp | バルブタイミング調整装置 |
JP4492684B2 (ja) * | 2007-11-28 | 2010-06-30 | 株式会社デンソー | バルブタイミング調整装置 |
JP4952568B2 (ja) * | 2007-12-21 | 2012-06-13 | 株式会社デンソー | バルブタイミング調整装置 |
JP2009167842A (ja) * | 2008-01-11 | 2009-07-30 | Denso Corp | バルブタイミング調整装置 |
DE102008005277A1 (de) * | 2008-01-19 | 2009-07-23 | Schaeffler Kg | Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
DE102009052841A1 (de) * | 2009-11-13 | 2011-05-19 | Hydraulik-Ring Gmbh | Nockenwelleneinsatz |
DE102010008002A1 (de) * | 2010-02-15 | 2011-08-18 | Schaeffler Technologies GmbH & Co. KG, 91074 | Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
JP5574159B2 (ja) * | 2010-03-26 | 2014-08-20 | アイシン精機株式会社 | 弁開閉時期制御装置 |
-
2009
- 2009-09-18 DE DE102009042202A patent/DE102009042202A1/de not_active Withdrawn
-
2010
- 2010-08-23 US US13/386,217 patent/US8763574B2/en active Active
- 2010-08-23 WO PCT/EP2010/062212 patent/WO2011032805A1/de active Application Filing
- 2010-08-23 CN CN201080041402.6A patent/CN102549241B/zh active Active
- 2010-08-23 EP EP10745609.7A patent/EP2478189B1/de active Active
- 2010-08-23 IN IN553DEN2012 patent/IN2012DN00553A/en unknown
- 2010-08-23 KR KR1020127006916A patent/KR101632097B1/ko active IP Right Grant
- 2010-08-23 BR BR112012005958A patent/BR112012005958A2/pt not_active Application Discontinuation
- 2010-08-23 JP JP2012529190A patent/JP5579271B2/ja active Active
- 2010-08-23 RU RU2012115466/06A patent/RU2012115466A/ru not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4903650A (en) | 1988-07-23 | 1990-02-27 | Daimler-Benz Ag | Apparatus for relative angular adjustment between two shafts in drive connection |
US5107804A (en) | 1989-10-16 | 1992-04-28 | Borg-Warner Automotive Transmission & Engine Components Corporation | Variable camshaft timing for internal combustion engine |
DE4218078C1 (de) | 1992-06-01 | 1994-01-05 | Schaeffler Waelzlager Kg | Vorrichtung zur selbsttätigen, kontinuierlichen Winkelverstellung zwischen zwei in Antriebsverbindung stehenden Wellen |
EP0806550A1 (de) | 1996-03-28 | 1997-11-12 | Aisin Seiki Kabushiki Kaisha | Ventilzeitsteuerungsvorrichtung |
EP1607590A2 (de) * | 2004-06-15 | 2005-12-21 | INA-Schaeffler KG | Brennkraftmaschine mit einer hydraulischen Vorrichtung zur Drehwinkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle |
US20090133652A1 (en) | 2007-11-28 | 2009-05-28 | Denso Corporation | Valve timing control apparatus |
Cited By (31)
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US8991344B2 (en) | 2012-02-02 | 2015-03-31 | Schaeffler Technologies AG & Co. KG | Filling of a volume accumulator in a camshaft adjuster |
US8960140B2 (en) | 2012-02-02 | 2015-02-24 | Schaeffler Technologies AG & Co. KG | External volume accumulator configuration in a camshaft adjuster |
DE102012201551A1 (de) | 2012-02-02 | 2013-08-08 | Schaeffler Technologies AG & Co. KG | Befüllung eines Volumenspeichers in einem Nockenwellenversteller |
DE102012201558A1 (de) | 2012-02-02 | 2013-08-08 | Schaeffler Technologies AG & Co. KG | Gestaltung eines Tankanschlusses in einem Nockenwellenversteller mit Volumenspeicher |
DE102012201563A1 (de) | 2012-02-02 | 2013-08-08 | Schaeffler Technologies AG & Co. KG | Rückschlagventil für Nockenwellenversteller mit Ölspeicher |
DE102012201560A1 (de) | 2012-02-02 | 2013-08-08 | Schaeffler Technologies AG & Co. KG | Externe Volumenspeicherausführung in einem Nockenwellenversteller |
CN103244221A (zh) * | 2012-02-02 | 2013-08-14 | 谢夫勒科技股份两合公司 | 凸轮轴调节器 |
CN103244222A (zh) * | 2012-02-02 | 2013-08-14 | 谢夫勒科技股份两合公司 | 止回阀、具有其的转子和具有该转子的凸轮轴调节器 |
CN103244228A (zh) * | 2012-02-02 | 2013-08-14 | 谢夫勒科技股份两合公司 | 凸轮轴调节器 |
CN103291399A (zh) * | 2012-02-02 | 2013-09-11 | 谢夫勒科技股份两合公司 | 容积存储器在凸轮轴调节器中的布置方案 |
US8739749B2 (en) | 2012-02-02 | 2014-06-03 | Schaeffler Technologies Gmbh & Co. Kg | Non-return valve for camshaft adjusters with oil reservoirs |
US8776747B2 (en) | 2012-02-02 | 2014-07-15 | Scheaffler Technologies GmbH & Co. KG | Non-return valve of a camshaft adjuster |
US8863712B2 (en) | 2012-02-02 | 2014-10-21 | Schaeffler Technologies Gmbh & Co. Kg | Configuration of a tank connection in a camshaft adjuster with volume accumulator |
DE102012025791B3 (de) * | 2012-02-02 | 2021-03-25 | Schaeffler Technologies AG & Co. KG | Anordnung eines Volumenspeichers im Nockenwellenversteller |
DE102012201570A1 (de) | 2012-02-02 | 2013-08-08 | Schaeffler Technologies AG & Co. KG | Rückschlagventilaufteilung |
DE102012201551B4 (de) | 2012-02-02 | 2022-05-12 | Schaeffler Technologies AG & Co. KG | Nockenwellenversteller und Verfahren zum Füllen eines Volumenspeichers in einem Nockenwellenversteller |
DE102012201566A1 (de) | 2012-02-02 | 2013-08-08 | Schaeffler Technologies AG & Co. KG | Anordnung eines Volumenspeichers im Nockenwellenversteller |
DE102012201560B4 (de) * | 2012-02-02 | 2019-02-21 | Schaeffler Technologies AG & Co. KG | Volumenspeicherausführung in einer Nockenwellenverstellvorrichtung |
DE102012201570B4 (de) * | 2012-02-02 | 2019-01-10 | Schaeffler Technologies AG & Co. KG | Rückschlagventilaufteilung eines Nockenwellenverstellers und Stator des Nockenwellenverstellers |
US10156164B2 (en) | 2012-02-02 | 2018-12-18 | Schaeffler Technologies AG & Co. KG | Arrangement of a volume accumulator in a camshaft adjuster |
DE102012201566B4 (de) * | 2012-02-02 | 2017-05-18 | Schaeffler Technologies AG & Co. KG | Anordnung eines Volumenspeichers im Nockenwellenversteller |
DE102012201558B4 (de) * | 2012-02-02 | 2017-09-07 | Schaeffler Technologies AG & Co. KG | Gestaltung eines Tankanschlusses in einem Nockenwellenversteller mit Volumenspeicher |
US9206713B2 (en) | 2012-02-02 | 2015-12-08 | Schaeffler Technologies AG & Co. KG | Arrangement of a volume accumulator |
WO2015051786A1 (de) * | 2013-10-09 | 2015-04-16 | Schaeffler Technologies AG & Co. KG | Nockenwellenverstelleinrichtung |
DE102015208453B3 (de) * | 2015-05-07 | 2016-06-30 | Schaeffler Technologies AG & Co. KG | Nockenwellenversteller mit Rückschlagventilen am Volumenspeicher |
DE102015213562A1 (de) | 2015-07-20 | 2017-01-26 | Schaeffler Technologies AG & Co. KG | Nockenwellenversteller mit Rückschlagventilen |
DE102015222067A1 (de) | 2015-11-10 | 2017-05-11 | Schaeffler Technologies AG & Co. KG | Nockenwellenversteller mit variablem Arbeitskammerabfluss |
DE102016218448A1 (de) | 2016-09-26 | 2018-03-29 | Schaeffler Technologies AG & Co. KG | Hydraulischer Nockenwellenversteller |
WO2020207526A1 (de) * | 2019-04-08 | 2020-10-15 | Schaeffler Technologies AG & Co. KG | Nockenwellenverstellsystem mit überdruckventil und einer hydraulikmittelsammelkammer |
US20240026804A1 (en) * | 2020-12-07 | 2024-01-25 | Schaeffler Technologies AG & Co. KG | Bypass oil supply for an oil volume accumulator of a hydraulic camshaft phaser |
US12055073B2 (en) * | 2020-12-07 | 2024-08-06 | Schaeffler Technologies AG & Co. KG | Bypass oil supply for an oil volume accumulator of a hydraulic camshaft phaser |
Also Published As
Publication number | Publication date |
---|---|
JP2013505388A (ja) | 2013-02-14 |
RU2012115466A (ru) | 2013-10-27 |
JP5579271B2 (ja) | 2014-08-27 |
CN102549241B (zh) | 2014-06-11 |
KR101632097B1 (ko) | 2016-06-20 |
EP2478189B1 (de) | 2013-11-06 |
BR112012005958A2 (pt) | 2020-01-14 |
US8763574B2 (en) | 2014-07-01 |
KR20120068868A (ko) | 2012-06-27 |
CN102549241A (zh) | 2012-07-04 |
US20120111295A1 (en) | 2012-05-10 |
IN2012DN00553A (de) | 2015-06-12 |
DE102009042202A1 (de) | 2011-04-14 |
EP2478189A1 (de) | 2012-07-25 |
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