WO2016021669A1 - ダンパ装置 - Google Patents
ダンパ装置 Download PDFInfo
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- WO2016021669A1 WO2016021669A1 PCT/JP2015/072297 JP2015072297W WO2016021669A1 WO 2016021669 A1 WO2016021669 A1 WO 2016021669A1 JP 2015072297 W JP2015072297 W JP 2015072297W WO 2016021669 A1 WO2016021669 A1 WO 2016021669A1
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- WO
- WIPO (PCT)
- Prior art keywords
- damper device
- elastic body
- torque
- input
- spring
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
- F16F15/133—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses using springs as elastic members, e.g. metallic springs
- F16F15/134—Wound springs
- F16F15/13469—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations
- F16F15/13476—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations resulting in a staged spring characteristic, e.g. with multiple intermediate plates
- F16F15/13484—Combinations of dampers, e.g. with multiple plates, multiple spring sets, i.e. complex configurations resulting in a staged spring characteristic, e.g. with multiple intermediate plates acting on multiple sets of springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0205—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type two chamber system, i.e. without a separated, closed chamber specially adapted for actuating a lock-up clutch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0221—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means
- F16H2045/0226—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type with damping means comprising two or more vibration dampers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
- F16H2045/0278—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch comprising only two co-acting friction surfaces
Definitions
- the present disclosure relates to a damper device including an input element to which power from an internal combustion engine is transmitted and an output element.
- a double-pass damper used in connection with a torque converter is known (for example, see Patent Document 1).
- the vibration path from the engine and the lockup clutch to the output hub is divided into two parallel vibration paths B and C, each of which includes a pair of springs, A separate intermediate flange is disposed between the pair of springs.
- the turbine of the torque converter is coupled to the intermediate flange of the vibration path B in order to make the resonance frequencies of the two vibration paths different, and the natural frequency of the intermediate flange of the vibration path B is determined by the intermediate flange of the vibration path C. Is less than the natural frequency of.
- vibration from the engine enters the two vibration paths B and C of the damper device.
- an engine vibration of a certain frequency reaches a vibration path B including an intermediate flange coupled to the turbine
- the vibration phase between the intermediate flange of the vibration path B and the output hub is 180 degrees with respect to the input vibration phase. It is shifted.
- the vibration that has entered the vibration path C is output without causing a phase shift (shift). Transmitted to the hub.
- the vibration at the output hub can be attenuated by shifting the phase of the vibration transmitted from the vibration path B to the output hub and the phase of the vibration transmitted from the vibration path C to the output hub by 180 degrees. it can.
- the two intermediate flanges (36, 38) are arranged so as to face each other in the axial direction of the double-pass damper (see FIGS. 5A and 5B of the same document). Accordingly, the pair of springs (35a, 35b) constituting the vibration path B are arranged so as to be aligned in the radial direction of the double pass damper, and the pair of springs (37a, 37b) constituting the vibration path C are also arranged in the diameter of the double pass damper. Arranged in a direction.
- the input side springs (35a, 37a) of the vibration paths B and C are disposed radially outside the output side springs (35b, 37b) of the vibration paths B and C.
- the freedom degree of the setting of the natural frequency of vibration path B and C by adjustment of the rigidity (spring constant) of each spring and the weight (moment of inertia) of an intermediate flange will fall.
- the resonance frequencies of the vibration paths B and C are close to each other, and there is a possibility that a sufficient vibration damping effect cannot be obtained.
- the main object of the present disclosure is to further improve the vibration damping performance of the damper device having the first and second torque transmission paths provided in parallel.
- the damper device includes a first elastic body that transmits torque between the input element and the output element in a damper device including an input element to which power from the internal combustion engine is transmitted and an output element.
- the second torque transmission path provided in parallel with the first torque transmission path, and the second and third elastic bodies are arranged along the circumferential direction of the damper device. Rather than the damper device in the radial direction.
- the intermediate element which is a resonating element, is omitted from the first torque transmission path, so that after the resonance corresponding to the natural frequency of the second torque transmission path (intermediate element) occurs, One of the vibration transmitted from the first elastic body to the output element and the vibration transmitted from the third elastic body to the output element cancels at least a part of the other, and the frequency band (rotational speed range) can be further increased.
- the second and third elastic bodies of the second torque transmission path are arranged on the outer side in the radial direction of the damper device with respect to the first elastic body of the first torque transmission path, so that the rigidity of the second and third elastic bodies is increased.
- the natural frequency of the second torque transmission path (intermediate element) can be further reduced.
- the vibration damping performance of the damper device having the first and second torque transmission paths provided in parallel can be further improved.
- the structure of the entire device can be simplified and an increase in size (especially an increase in shaft length) can be suppressed.
- Another damper device of the present disclosure is a damper device including an input element to which power from an internal combustion engine is transmitted and an output element, and a first elastic body that transmits torque between the input element and the output element.
- a damper device including an input element to which power from an internal combustion engine is transmitted and an output element, and a first elastic body that transmits torque between the input element and the output element.
- a second torque transmission path including an elastic body and provided in parallel with the first torque transmission path, based on the frequency of the anti-resonance point at which the vibration amplitude of the output element is theoretically zero.
- the spring constants of the second and third elastic bodies and the moment of inertia of the intermediate element are determined.
- the vibration damping of the damper device having the first and second torque transmission paths provided in parallel is performed.
- the performance can be further improved.
- FIG. 1 It is a schematic structure figure showing a starting device containing a damper device concerning one embodiment of this indication. It is sectional drawing which shows the starting apparatus of FIG. It is explanatory drawing which illustrates the relationship between the rotation speed of an engine, and the torque fluctuation in the output element of a damper apparatus. It is sectional drawing which shows the starting apparatus which concerns on other embodiment of this indication.
- FIG. 1 is a schematic configuration diagram illustrating a starting device 1 including a damper device 10 according to an embodiment of the present disclosure
- FIG. 2 is a cross-sectional view illustrating the starting device 1.
- a starting device 1 shown in these drawings is mounted on a vehicle including an engine (internal combustion engine) as a prime mover, and in addition to a damper device 10, a front as an input member connected to a crankshaft of the engine.
- the cover 3 is connected to a pump impeller (input side fluid transmission element) 4 fixed to the front cover 3, a turbine runner (output side fluid transmission element) 5 rotatable coaxially with the pump impeller 4, and a damper device 10.
- a damper hub 7 as a power output member fixed to an input shaft IS of a transmission which is an automatic transmission (AT) or a continuously variable transmission (CVT), a lock-up clutch 8 and the like are included.
- axial direction basically indicates the extending direction of the central axis (axial center) of the starting device 1 or the damper device 10, unless otherwise specified.
- the “radial direction” is basically the radial direction of the rotating element such as the starting device 1, the damper device 10, and the damper device 10, unless otherwise specified, that is, the center of the starting device 1 or the damper device 10.
- An extending direction of a straight line extending from the axis in a direction (radial direction) orthogonal to the central axis is shown.
- the “circumferential direction” basically corresponds to the circumferential direction of the rotating elements of the starting device 1, the damper device 10, the damper device 10, etc., ie, the rotational direction of the rotating element, unless otherwise specified. Indicates direction.
- the pump impeller 4 includes a pump shell 40 that is tightly fixed to the front cover 3 and a plurality of pump blades 41 that are disposed on the inner surface of the pump shell 40.
- the turbine runner 5 includes a turbine shell 50 and a plurality of turbine blades 51 disposed on the inner surface of the turbine shell 50.
- An inner peripheral portion of the turbine shell 50 is fixed to the turbine hub 52 via a plurality of rivets.
- the turbine hub 52 is rotatably supported by the damper hub 7, and movement of the turbine hub 52 (turbine runner 5) in the axial direction of the starting device 1 is restricted by the damper hub 7 and a snap ring attached to the damper hub 7.
- the pump impeller 4 and the turbine runner 5 face each other, and a stator 6 that rectifies the flow of hydraulic oil (working fluid) from the turbine runner 5 to the pump impeller 4 is coaxially disposed between the two.
- the stator 6 has a plurality of stator blades 60, and the rotation direction of the stator 6 is set in only one direction by the one-way clutch 61.
- the pump impeller 4, the turbine runner 5, and the stator 6 form a torus (annular flow path) for circulating hydraulic oil, and function as a torque converter (fluid transmission device) having a torque amplification function.
- the stator 6 and the one-way clutch 61 may be omitted, and the pump impeller 4 and the turbine runner 5 may function as a fluid coupling.
- the lockup clutch 8 executes a lockup for connecting the front cover 3 and the damper hub 7 via the damper device 10 and releases the lockup.
- the lock-up clutch 8 is configured as a single-plate hydraulic clutch, and is disposed in the front cover 3 and in the vicinity of the inner wall surface of the front cover 3 on the engine side, and with respect to the damper hub 7. It has a lock-up piston (power input member) 80 that is movably fitted in the direction. As shown in FIG. 2, a friction material 81 is attached to the outer peripheral side of the lockup piston 80 and the surface on the front cover 3 side.
- a lockup chamber 85 is defined between the lockup piston 80 and the front cover 3 and connected to a hydraulic control device (not shown) via an oil passage formed in the hydraulic oil supply passage and the input shaft IS.
- the pump impeller 4 and the pump impeller 4 and the turbine runner 5 from the axial center side (around the one-way clutch 61) through the oil passage formed in the input shaft IS and radially outward. Hydraulic oil from a hydraulic control device supplied to the turbine runner 5 (torus) can flow in. Therefore, if the inside of the fluid transmission chamber 9 and the lockup chamber 85 defined by the front cover 3 and the pump shell of the pump impeller 4 are kept at an equal pressure, the lockup piston 80 is moved to the front cover 3 side. The lockup piston 80 does not move and does not frictionally engage the front cover 3.
- a multi-plate hydraulic clutch including at least one friction engagement plate (a plurality of friction materials) may be employed.
- the damper device 10 includes a drive member (input element) 11, an intermediate member (intermediate element) 12, and a driven member (output element) 15 as rotating elements. Furthermore, the damper device 10 is a torque transmission element (torque transmission elastic body), and a plurality of (for example, four in the present embodiment) first springs (first number) that transmit torque between the drive member 11 and the driven member 15.
- the damper device 10 has a first torque transmission path P1 and a second torque transmission path P2 provided in parallel with each other.
- the first torque transmission path P1 includes only the first spring SP1 as an element disposed between the drive member 11 and the driven member 15, and the drive member 11 and the driven member 15 via the plurality of first springs SP1. Torque is transmitted between the two.
- the second torque transmission path P2 includes an intermediate member 12, second and third springs SP2 and SP3 as elements disposed between the drive member 11 and the driven member 15, and includes a plurality of second springs SP2, Torque is transmitted between the drive member 11 and the driven member 15 via the intermediate member 12 and the plurality of third springs SP3.
- the first to third springs SP1 to SP3 linear coil springs made of a metal material spirally wound so as to have an axial center extending straight when no load is applied are employed.
- the first to third springs SP1 to SP3 are more appropriately expanded and contracted along the axial center, and so-called hysteresis (the input torque to the drive member 11 is increased).
- the difference between the torque output from the driven member 15 when going and the torque output from the driven member 15 when the input torque decreases can be reduced.
- the first spring SP1 has an outer diameter (coil diameter) larger than the outer diameter (coil diameter) of the second and third springs SP2 and SP3. Further, as shown in FIG. 2, the wire diameter of the first spring SP1 (outer diameter of the coil wire) is larger than the wire diameter (outer diameter of the coil wire) of the second and third springs SP2 and SP3.
- the drive member 11 of the damper device 10 includes an annular first plate member (first input member) 111 fixed to the lockup piston 80 of the lockup clutch 8, and a first plate member 111.
- An annular second plate member (second input member) 112 connected to rotate integrally with the turbine runner 5 and connected to the second plate member 112 via a plurality of rivets ( And an annular third plate member (third input member) 113 to be fixed.
- the drive member 11, that is, the first to third plate members 111 to 113 rotate integrally with the lockup piston 80, and the front cover 3 (engine) and the damper device 10 are driven by the engagement of the lockup clutch 8.
- the member 11 is connected.
- the first plate member 111 includes an annular fixed portion 111a that is fixed to the inner surface (the surface to which the friction material 81 is not attached) of the lockup piston 80 via a plurality of rivets, and an outer peripheral portion of the fixed portion 111a.
- a cylindrical portion 111b extending in the axial direction, and a plurality (for example, three in this embodiment) of spring abutments extending radially outward from the cylindrical portion 111b at regular intervals (equal intervals) Part (outer contact part) 111c.
- a plurality of engaging convex portions that are fitted into corresponding concave portions formed on the outer peripheral portion of the second plate member 112 are formed at the free end portion of the cylindrical portion 111 b of the first plate member 111.
- the second plate member 112 has a plurality of (for example, four in this embodiment) spring support portions 112a arranged in the circumferential direction along the inner peripheral edge (equal intervals), and a plurality of spring support portions 112a.
- a plurality of (for example, four in the present embodiment) that are arranged at equal intervals in the circumferential direction on the outer peripheral side (equal intervals) and that face each other in the radial direction of the corresponding spring support 112a and the second plate member 112, respectively.
- It has a spring support portion 112b and a plurality of (for example, four in this embodiment) spring contact portions (inner contact portions) 112c.
- the third plate member 113 includes a plurality (for example, four in this embodiment) of spring support portions 113a arranged in the circumferential direction along the inner peripheral edge (equally spaced), and a plurality of spring supports.
- a plurality (for example, four in the present embodiment) that are arranged at equal intervals in the circumferential direction on the outer peripheral side of the portion 113a (equally spaced) and that respectively correspond to the corresponding spring support portions 113a and the third plate member 113 in the radial direction.
- the plurality of spring support portions 112a of the second plate member 112 support (guide) the side portions on the lockup piston 80 side of the corresponding first springs SP1 (one each) from the inner peripheral side.
- the plurality of spring support portions 112b support (guide) the side portions on the lockup piston 80 side of the corresponding first springs SP1 (one each) from the outer peripheral side.
- the plurality of spring support portions 113a of the third plate member 113 support (guide) the side portions on the turbine runner 5 side of the corresponding first springs SP1 (one each) from the inner peripheral side.
- the plurality of spring support portions 113b support (guide) the side portions on the turbine runner 5 side of the corresponding first springs SP1 (one each) from the outer peripheral side. Accordingly, the plurality of first springs SP1 are supported by the second plate member 112 and the third plate member 113 so as to be aligned along the circumferential direction of both (damper device 10).
- the plurality of spring contact portions 112c of the second plate member 112 are provided one by one between the spring support portions 112a and 112b adjacent to each other along the circumferential direction.
- Each spring contact portion 112c is supported by the second and third plate members 112 and 113 in the attached state of the damper device 10, and abuts against both end portions between the first springs SP1 adjacent to each other.
- the plurality of spring contact portions 113c of the third plate member 113 are provided one by one between the spring support portions 113a and 113b adjacent to each other along the circumferential direction.
- Each spring contact portion 113c is also supported by the second and third plate members 112 and 113 in the mounted state of the damper device 10, and contacts the end portions of the first spring SP1 adjacent to each other.
- the intermediate member 12 is formed in an annular shape so as to support (guide) the outer peripheral portions of the plurality of second and third springs SP2 and SP3, the side portion on the lockup piston 80 side (the right side portion in FIG. 2), and the like. ing. As shown in FIG. 2, the intermediate member 12 is rotatably supported (aligned) by a cylindrical portion (supporting portion) 111 b of the first plate member 111 constituting the drive member 11, and the outer periphery in the fluid transmission chamber 9. Located in the side area.
- the intermediate member 12 supports the second and third springs SP2 and SP3 so as to be alternately arranged along the circumferential direction of the intermediate member 12 (damper device 10). Accordingly, the second and third springs SP2 and SP3 are disposed on the radially outer side of the plurality of first springs SP1 supported by the drive member 11 (second and third plate members 112 and 113). In this way, the second and third springs SP2 and SP3 are arranged in the outer peripheral side region in the fluid transmission chamber 9 so as to surround the plurality of first springs SP1, so that the axial length of the damper device 10 and thus the starting device 1 can be increased. It becomes possible to shorten more.
- the intermediate member 12 is opposed to a plurality (for example, three in this embodiment) of the first spring contact portions (elastic body contact portions) 121c and the corresponding first spring contact portions 121c in the axial direction.
- the first and second spring contact portions 121c and 122c are in contact with both ends between the second and third springs SP2 and SP3 that are paired (act in series) with each other.
- a spring contact portion 111c of the first plate member 111 constituting the drive member 11 is disposed between the second and third springs SP2 and SP3 that do not form a pair (do not act in series).
- each spring contact portion 111c of the drive member 11 is in contact with both ends between the second and third springs SP2 and SP3 that do not make a pair.
- one end of each second spring SP2 comes into contact with the corresponding spring contact portion 111c of the drive member 11, and the other end of each second spring SP2 corresponds to the intermediate member 12.
- the first and second spring contact portions 121c and 122c are in contact with each other.
- each third spring SP3 contacts the corresponding first and second spring contact portions 121c and 122c of the intermediate member 12, and the other end of each third spring SP3 is , It contacts the corresponding spring contact portion 111c of the drive member 11.
- the driven member 15 is disposed between the second plate member 112 and the third plate member 113 of the drive member 11 and fixed to the damper hub 7 by, for example, welding.
- the driven member 15 includes a plurality (for example, four in this embodiment) of inner spring contact portions (inner contact portions) 15ci formed at intervals in the circumferential direction so as to be close to the inner peripheral edge thereof, and a plurality of driven members 15 A plurality of (in this embodiment, for example, three) outer spring abutting portions (outer abutting portions) 15co that are formed on the radially outer side of the inner spring abutting portion 15ci at intervals in the circumferential direction. .
- each inner spring contact portion 15 ci of the driven member 15 is, like the spring contact portions 112 c and 113 c of the drive member 11, the end portions of both between the adjacent first springs SP 1. Abut. Further, in the mounted state of the damper device 10, the outer spring contact portions 15co of the driven member 15 are not paired with the second and third springs SP2 and SP3, which are not paired, like the spring contact portions 111c of the drive member 11. In contact with both ends.
- both end portions of the first springs SP1 are in contact with both the spring contact portions 112c and 113c of the drive member 11 and the inner spring contact portion 15ci of the driven member 15, respectively.
- the one end of each second spring SP2 also contacts the corresponding outer spring contact portion 15co of the driven member 15, and the other end of each third spring SP3 corresponds to the corresponding outer spring contact portion of the driven member 15. It also contacts 15co.
- the driven member 15 is connected to the drive member 11 via the plurality of first springs SP1, that is, the first torque transmission path P1, and the plurality of second springs SP2, the intermediate member 12, and the plurality of third springs. It is connected to the drive member 11 via SP3, that is, the second torque transmission path P2.
- annular turbine connecting member 55 is fixed to the turbine shell 50 of the turbine runner 5 by welding, for example.
- a plurality (for example, three in this embodiment) of spring contact portions 55c extending in the axial direction with an interval in the circumferential direction are formed on the outer peripheral portion of the turbine connecting member 55.
- Each spring contact portion 55c of the turbine connecting member 55 is in contact with both end portions between the second and third springs SP2 and SP3 acting in series in pairs.
- the intermediate member 12 and the turbine runner 5 are connected so as to rotate integrally, and by connecting the turbine runner 5 (and the turbine hub 52) to the intermediate member 12, the intermediate member 12
- the substantial moment of inertia (the total value of the moments of inertia of the intermediate member 12, the turbine runner 5, etc.) can be further increased.
- the turbine connecting member 55 is connected to the intermediate member 12 arranged on the outer side in the radial direction of the first spring SP1, that is, the outer peripheral side region in the fluid transmission chamber 9, so that the turbine connecting member 55 is connected to the first member of the drive member 11. It is possible to prevent passage between the three plate member 113 or the first spring SP1 and the turbine runner 5 in the axial direction. Thereby, it becomes possible to suppress the increase in the axial length of the damper device 10 and thus the starting device 1 more favorably.
- the damper device 10 includes a first stopper 21 that restricts the bending of the first spring SP1, a second stopper 22 that restricts the bending of the second spring SP2, and a bending of the third spring SP3. 3rd stopper 23 which regulates.
- the first stopper 21 is configured to restrict relative rotation between the drive member 11 and the driven member 15.
- the second stopper 22 is configured to restrict relative rotation between the drive member 11 and the intermediate member 12.
- the third stopper 23 is configured to restrict relative rotation between the intermediate member 12 and the driven member 15.
- first to third stoppers 21 to 23 have a predetermined torque (first torque) in which the input torque to the drive member 11 is smaller than the torque T2 (second threshold) corresponding to the maximum torsion angle ⁇ max of the damper device 10. 1 is configured to regulate the bending of the corresponding spring after reaching T1.
- one of the second and third stoppers 22 and 23 corresponding to one of the second and third springs SP2 and SP3 having a small spring constant (for example, the second spring SP2) is directed to the drive member 11.
- the corresponding spring is restrained from bending.
- the first stopper 21 and the other of the second and third stoppers 22 and 23 are configured to operate simultaneously when the input torque to the drive member 11 reaches the torque T2 corresponding to the maximum torsion angle ⁇ max.
- the damper device 10 has a two-stage (two-stage) attenuation characteristic.
- the configurations of the first to third stoppers 21 to 23 are not limited to those shown in the figure, and one of the other of the first stopper 21 and the second and third stoppers 22 and 23 may be omitted. Good.
- the driven member 15 and the damper hub 7 are connected to the driven member 15 and the damper hub 7 via the first torque transmission path P1 including SP1 (only) and the second torque transmission path P2 including the plurality of second springs SP2, the intermediate member 12 and the plurality of third springs SP3. Torque is transmitted. Then, until the input torque to the drive member 11 reaches the torque T1, the first spring SP1 and the second and third springs SP2 and SP3 act in parallel to attenuate the fluctuation of the torque transmitted to the drive member 11. (Absorb. Further, when the input torque to the drive member 11 exceeds the torque T1, the first spring SP1 and the second or third springs SP2 and SP3 act in parallel to attenuate fluctuations in the torque transmitted to the drive member 11. (Absorb.
- the first spring SP1 and the second and third springs SP2 and SP3 act in parallel until the input torque transmitted to the drive member 11 reaches the torque T1.
- the first and second torque transmission paths P1 and P1 correspond to the frequency of vibration transmitted from the engine to the drive member 11. Resonance of the intermediate member 12 or resonance due to vibration of the entire damper device 10 and the drive shaft of the vehicle occurs at any of P2. Then, once resonance occurs in one of the first and second torque transmission paths P1 and P2 in accordance with the frequency of vibration transmitted to the drive member 11, then, via the first torque transmission path P1 (main system).
- the phase of vibration transmitted from the drive member 11 to the driven member 15 and the phase of vibration transmitted from the drive member 11 to the driven member 15 via the second torque transmission path P2 are 180 degrees. Shift. Thereby, in the damper apparatus 10, the vibration in the driven member 15 can be attenuated using such a phase shift of vibration in the first and second torque transmission paths P1, P2.
- Equation (1) “J 1 ” is the moment of inertia of the drive member 11, “J 2 ” is the moment of inertia of the intermediate member 12, and “J 3 ” is the moment of inertia of the driven member 15. It is. “ ⁇ 1 ” is the twist angle of the drive member 11, “ ⁇ 2 ” is the twist angle of the intermediate member 12, and “ ⁇ 3 ” is the twist angle of the driven member 15.
- K 1 is a combined spring constant of the plurality of first springs SP 1 acting in parallel between the drive member 11 and the driven member 15
- k 2 is the drive member 11 and the intermediate member 12.
- K 3 is a combined spring of the plurality of third springs SP3 acting in parallel between the intermediate member 12 and the driven member 15
- K R is a rigidity, that is, a spring constant in a transmission, a drive shaft or the like disposed between the driven member 15 and the vehicle wheel, and “T” is transmitted from the engine to the drive member 11. Input torque.
- the lockup rotation speed Nluup of the lockup clutch is further reduced, and torque from the engine is mechanically transmitted to the transmission at an early stage.
- the power transmission efficiency between the engine and the transmission can be improved, thereby improving the fuel efficiency of the engine.
- vibration transmitted from the engine to the drive member 11 via the lockup clutch becomes large, particularly in a 3-cylinder or 4-cylinder engine.
- the increase in the vibration level becomes remarkable in a vehicle equipped with such a cylinder-saving engine.
- a damper that transmits torque (vibration) from the engine to the transmission in a state where the lockup is executed. It is necessary to further reduce the vibration level in the rotation speed region near the lockup rotation speed Nlup of the entire apparatus 10 (driven member 15).
- the present inventors based on the lock-up speed Nluup determined for the lock-up clutch 8, the engine speed ranges from 500 rpm to 1500 rpm (assumed setting range of the lock-up speed Nlup).
- the damper device 10 is configured so that the anti-resonance point A described above is formed when it is within the bracket.
- the frequency fa of the antiresonance point A is expressed by the following equation (6):
- the combined spring constant k 1 of the plurality of first springs SP 1 , the combined spring constant k 2 of the plurality of second springs SP 2 , and the plurality of third springs SP 3 so as to satisfy the following expression (7):
- the combined spring constant k 3 and the moment of inertia J 2 of the intermediate member 12 are selected and set.
- the spring constants k 1 , k 2 , k 3 of the first, second, and third springs SP1 to SP3 are based on the frequency fa (and the lockup rotation speed Nloop) at the antiresonance point A. And the moment of inertia J 2 of the intermediate member 12 is determined.
- the anti-resonance point A that can theoretically make the vibration amplitude ⁇ 3 of the driven member 15 zero (can be further reduced) is within a low rotational speed range from 500 rpm to 1500 rpm (assumed setting range of the lockup rotational speed Nloop).
- the generation timing of the resonance that causes the antiresonance point A (resonance that must be generated to form the antiresonance point A, see the resonance point R1 in FIG. 3) as shown in FIG. 3.
- the diameter of the first to third springs SP1 to SP3 is increased, the number of turns (axial length) is increased, and the size of the damper device 10 and the starting device 1 is suppressed. (Connection between the engine and the drive member 11) is allowed, and the vibration damping performance of the damper device 10 in a low rotational speed range in which vibration from the engine tends to increase can be further improved.
- the resonance frequency causing the antiresonance point A is smaller than the frequency fa of the antiresonance point A and as small as possible.
- the frequency of the resonance (resonance point R1) (the second torque transmission path P2, that is, the natural frequency of the intermediate member 12) is set to “f R1. ", The frequency f R1 can be expressed by the following simple expression (8).
- Formula (8) shows the natural frequency of the second torque transmission path P2 (intermediate member 12) when it is assumed that the drive member 11 and the driven member 15 do not rotate relative to each other.
- the resonance of the intermediate member 12 is a virtual one that does not occur in the rotational speed range where the damper device 10 is used, and the rotational speed corresponding to the natural frequency f R1 of the intermediate member 12 is that of the lock-up clutch 8. It becomes lower than the lockup rotation speed Nlup.
- the next resonance for example, the entire damper device 10) before the engine speed increases so much after the anti-resonance point A occurs.
- the spring constants k 1 , k 2 , k 3 and the moment of inertia J 2 of the intermediate member 12 are selected so that the frequency of resonance occurring on the higher rotation side (higher frequency side) than the antiresonance point A is greater. It is preferable to set. Accordingly, the resonance (resonance point R2) can be generated on the high rotation speed side where vibrations are hardly manifested, and the vibration damping performance of the damper device 10 in the low rotation speed range can be further improved. it can.
- the intermediate element that is a resonating element since the intermediate element that is a resonating element is omitted from the first torque transmission path P1, resonance occurs according to the natural frequency of the second torque transmission path P2 (intermediate member 12). Later, one of the vibration transmitted from the first spring SP1 to the driven member 15 and the vibration transmitted from the third spring SP3 to the driven member 15 cancels out at least a part of the other to increase the frequency band (rotational speed range). be able to. Furthermore, since the intermediate element is omitted from the first torque transmission path P1, it is possible to simplify the structure of the entire apparatus and suppress an increase in size (particularly an increase in the axial length).
- the second and third springs SP2 and SP3 of the second torque transmission path P2 are disposed outside the first spring SP1 of the first torque transmission path P1 in the radial direction of the damper device 10, thereby providing the second and second springs.
- the third adjustment of the spring SP2, SP3 of the spring constant (stiffness) and the intermediate member 12 of the inertia moment J 2 it is possible to the natural frequency of the second torque transmission path P2 (intermediate member 12) is smaller.
- the damper device 10 when the damper device 10 is configured to satisfy the expression (7), the spring constant k 1 of the first spring SP1 is made smaller than the spring constants k 2 and k 3 of the second and third springs SP2 and SP3.
- the rigidity of the damper device 10 as a whole can be further reduced, and the maximum twist angle ⁇ max of the damper device 10 can be further increased.
- the intermediate member 12 is rotatably supported by a cylindrical portion (support portion) 111 b provided in the drive member 11 so as to be close to the outer periphery of the damper device 10. As a result, the moment of inertia of the intermediate member 12 can be further increased.
- the intermediate member 12 is connected to the turbine runner 5 so as to rotate integrally, it is larger than the substantial moment of inertia J 2 of the intermediate member 12 (the total value of the inertia moments of the intermediate member 12 and the turbine runner 5). Therefore, as can be seen from the equations (6) and (8), the natural frequency of the second torque transmission path P2 (intermediate member 12) and the frequency fa of the antiresonance point A are further reduced.
- the anti-resonance point A can be set on the lower rotation side (lower frequency side).
- the damper device 10 By designing the damper device 10 based on the frequency fa of the antiresonance point A as described above, it is possible to further improve the vibration damping performance of the damper device 10 while suppressing an increase in the size of the entire device. Become. According to the research and analysis by the present inventors, when the lock-up rotation speed Nlup is set to a value around 1000 rpm, for example, the damper device 10 is set so as to satisfy 900 rpm ⁇ (120 / n) ⁇ fa ⁇ 1200 rpm, for example. It has been confirmed that a very good result can be obtained practically by configuring.
- the ratio of the spring constants k 1 , k 2 , k 3 is 0.30 ⁇ k 1 / k total ⁇ 0.90 0.50 ⁇ k 2 / k total ⁇ 1.10. 0.55 ⁇ k 3 / k total ⁇ 1.15 It has been found that the vibration damping performance of the damper device 10 can be ensured extremely well in practice by satisfying this condition.
- the drive member 11 includes spring contact portions 112c and 113c that contact the end portion of the first spring SP1, and a spring contact portion 111c that contacts the end portion of the second spring SP2.
- the second and third springs SP2 and SP3 of the second torque transmission path P2 can be disposed on the outer side in the radial direction of the damper device 10 with respect to the first spring SP1 of the first torque transmission path P1.
- the drive member 11 has a spring contact portion 111c that contacts the end portion of the second spring SP2, and a lock-up piston 80 to which power from the internal combustion engine is transmitted.
- the second plate member 112 is connected to the first plate member 111 so as to rotate integrally therewith, and has a spring contact portion 113c that contacts the end of the first spring SP1 and rotates integrally with the second plate member (112).
- a third plate member 113 connected in this manner.
- the driven member 15 is disposed between the second plate member 112 and the third plate member 113 in the axial direction of the damper device 10.
- the connecting portion (the rivet that fastens both) of the lockup piston 80 and the first plate member 111 and the connecting portion (the rivet that fastens both) of the second plate member 112 and the third plate member 113 are: As shown in FIG. 2, it is provided between the first spring SP1 and the second and third springs SP2 and SP3 in the radial direction. Thereby, the axial length of the damper device 10 can be further shortened.
- the fixing portion between the turbine connecting member 55 and the turbine runner 5 is also provided between the first spring SP1 and the second and third springs SP2 and SP3 in the radial direction, as shown in FIG. Provided. Thereby, the intermediate member 12 and the turbine runner 5 can be coupled while further shortening the axial length of the damper device 10.
- the outer diameter (coil diameter) of the first spring SP1 is larger than the outer diameter (coil diameter) of the second and third springs SP2 and SP3. In this way, by increasing the outer diameter of the first spring SP1 on the inner peripheral side, the first spring SP1 has the same twist angle as that of the second and third springs SP2 and SP3 on the outer peripheral side. It is possible to secure a good torque sharing of the first torque transmission path P1 by increasing the wire diameter of the spring SP1.
- FIG. 4 is a cross-sectional view showing a starting device 1B including a damper device 10B according to another embodiment of the present disclosure. Note that, among the components of the starting device 1B and the damper device 10B, the same elements as those of the above-described starting device 1 and the damper device 10 are denoted by the same reference numerals, and redundant description is omitted.
- the first and second springs SP2 and SP3 included in the second torque transmission path and the intermediate member 12B are included in the first torque transmission path P1. It arrange
- the spring contact portions 112c and 113c of the drive member 11B and the inner spring contact portion 15ci of the driven member 15B are supported by different spring support portions 112a, 112b, 113a, and 113b in the mounted state of the damper device 10B. Further, the end portions of the second and third springs SP2 and SP3 (not paired) abut against each other.
- the intermediate member 12B is configured as a plate-like annular member, and has a plurality of axially extending portions formed on the inner peripheral portion of the driven member 15B so as to be positioned on the radially inner side of the plurality of first springs SP1. Is supported (aligned) rotatably.
- the spring contact portion 12c of the intermediate member 12 is supported by the same spring support portions 112a, 112b, 113a, 113b and is in contact with both ends between the second and third springs SP2, SP3 that make a pair with each other. .
- the turbine connecting member 55B fixed to the turbine shell 50 of the turbine runner 5 has a plurality of spring contact portions 55c extending in the axial direction from the inner peripheral portion at intervals in the circumferential direction.
- the portion 55c is fitted into a slit formed in the corresponding spring contact portion 12c of the intermediate member 12B.
- the intermediate member 12B and the turbine runner 5 are connected so as to rotate integrally.
- the turbine runner 5 (and the turbine hub 52) to the intermediate member 12B, the intermediate member 12B is connected to the intermediate member 12B.
- the substantial moment of inertia (the total value of the moments of inertia of the intermediate member 12, the turbine runner 5, etc.) can be further increased.
- an additional weight (additional mass body) 55w as shown in FIG. 4 may be attached to the turbine connecting member 55B.
- the outer peripheral portion of the plurality of first springs SP1, the side portion on the front cover 3 side (the right side portion in FIG. 4), and the like are supported (guided) on the outer peripheral portion of the lockup piston 80B.
- An annular spring support 80a is formed.
- the plurality of first springs SP1 are lock-up pistons so as to surround the second and third springs SP2 and SP3 supported by the drive member 11B (second and third plate members 112 and 113). It is supported by a spring support portion 80a of 80B and is disposed in the outer peripheral side region in the fluid transmission chamber 9.
- the spring contact portion 111c of the drive member 11B (first plate member 111) and the outer spring contact portion 15co of the driven member 15B are both between the adjacent first springs SP1 in the mounted state of the damper device 10B. Abuts against the end of the.
- the damper device 10B configured as described above. Further, in the damper device 10B, the rigidity of the first spring SP1 can be further reduced (the spring constant can be further reduced), so that the rigidity of the entire device is further reduced and the maximum twist angle ⁇ max of the damper device 10B is increased. It becomes possible to ensure good.
- the damper device includes the input element (11) in the damper device (10) including the input element (11) to which power from the internal combustion engine is transmitted and the output element (15).
- a third elastic body (SP3) that transmits torque between the intermediate element (12) and the output element (15).
- the second torque transmission path (P2) provided in parallel with the first torque transmission path (P1), and the second and third elastic bodies (SP2, SP3) are arranged around the damper device (10).
- the first elastic body so as to line up along the direction SP1) than those disposed on the outer side in the radial direction of the damper device (10).
- the intermediate element which is a resonating element, is omitted from the first torque transmission path, so that after the resonance corresponding to the natural frequency of the second torque transmission path (intermediate element) occurs, One of the vibration transmitted from the first elastic body to the output element and the vibration transmitted from the third elastic body to the output element cancels at least a part of the other, and the frequency band (rotational speed range) can be further increased.
- the second and third elastic bodies of the second torque transmission path are arranged on the outer side in the radial direction of the damper device with respect to the first elastic body of the first torque transmission path, so that the rigidity of the second and third elastic bodies is increased.
- the natural frequency of the second torque transmission path (intermediate element) can be further reduced.
- the vibration damping performance of the damper device having the first and second torque transmission paths provided in parallel can be further improved.
- the structure of the entire device can be simplified and an increase in size (especially an increase in shaft length) can be suppressed.
- the intermediate element (12) may be coupled to the turbine runner (5) of the fluid transmission so as to rotate integrally.
- the substantial inertia moment of the intermediate element (the total value of the inertial moments of the intermediate element and the turbine runner) can be further increased, so that the natural frequency and antiresonance point of the second torque transmission path (intermediate element) can be increased. It is possible to set the anti-resonance point to a lower rotation side by further reducing the frequency fa.
- the intermediate element (12) may be rotatably supported by a support portion (111b) provided in the input element (11) so as to be close to the outer periphery of the damper device (10). As a result, the moment of inertia of the intermediate element can be further increased.
- the input element (11) includes an inner contact portion (112c, 113c) that contacts the end portion of the first elastic body (SP1) and an outer surface that contacts the end portion of the second elastic body (SP2).
- the output element (15) may include an inner contact portion (15ci) that contacts an end portion of the first elastic body (SP1), and the third elastic body.
- You may have the outer side contact part (15co) contact
- the input element (11) has the outer contact portion (111c) that contacts the end portion of the second elastic body (SP2), and a power input member (80) to which power from the internal combustion engine is transmitted.
- the inner abutting portion (112c) that abuts against the end portion of the first elastic body (SP1) and the first elastic body (SP1) and the first A second input member (112) coupled to rotate integrally with the first input member (111) between the second and third elastic bodies (SP2, SP3) in the radial direction; and the first elastic body A third input member (113) having the inner abutting portion (113c) that abuts against the end portion of (SP1) and connected to the second input member (112) so as to rotate integrally;
- the output element (15) It may be disposed between the axial direction of the damper device between the input member (112) the third input member (113) (10). Thereby, it becomes possible to arrange
- the connecting portion between the power input member (80) and the first input member (111) and the connecting portion between the second input member (112) and the third input member (113) It may be provided between the one elastic body (SP1) and the second and third elastic bodies (SP2, SP3) in the radial direction. Thereby, the axial length of the damper device can be further shortened.
- the damper device (10) is fixed to a turbine runner (5) of a fluid transmission device, and connects the intermediate element (12) and the turbine runner (5) so as to rotate integrally.
- the fixing portion between the turbine connecting member (55) and the turbine runner (5) includes the first elastic body (SP1) and the second and third elastic bodies (SP2, SP3). May be provided in the radial direction. As a result, it is possible to connect the second intermediate element and the turbine runner while further shortening the axial length of the damper device.
- the first to third elastic bodies may be coil springs, and the outer diameter of the first elastic body (SP1) is the second and third elastic bodies (SP2). , SP3) may be larger than the outer diameter.
- the first elastic body is secured while maintaining the same twist angle of the first elastic body as the second and third elastic bodies on the outer peripheral side. It is possible to secure a good torque sharing of the first torque transmission path by increasing the wire diameter.
- the spring constant of the first elastic body (SP1) may be smaller than the spring constants of the second and third elastic bodies (SP2, SP3).
- the rigidity of the entire damper device can be further reduced, and the torsion angle of the damper device can be further increased.
- Another damper device of the present disclosure includes a damper device (10) including an input element (11) to which power from an internal combustion engine is transmitted, and an output element (15).
- the input element (11) and the output element A first torque transmission path (P1) including a first elastic body (SP1) that transmits torque to (15), an intermediate element (12), the input element (11), and the intermediate element (12)
- SP3 that transmits torque between the first elastic body (SP3) and the output element (15).
- the frequency (fa) of the antiresonance point (A) is provided with a second torque transmission path (P2) provided in parallel with the torque transmission path (P1), and the vibration amplitude of the output element (15) is theoretically zero.
- the first, second and third elastic bodies (S 1, SP2, SP3 and spring constant of) the one in which the moment of inertia of the intermediate element (11) is determined.
- the spring constants of the first, second and third elastic bodies (SP1, SP2, SP3) and the moment of inertia of the intermediate element (11) are the frequency (fa) of the antiresonance point (A). And the number of cylinders (n) of the internal combustion engine.
- damper device (10) has the frequency of the antiresonance point (A) as “fa” and the number of cylinders of the internal combustion engine as “n”, 500rpm ⁇ (120 / n) ⁇ fa ⁇ 1500rpm It may be configured to satisfy.
- the anti-resonance point that can further reduce the vibration amplitude of the output element within a low speed range from 500 rpm to 1500 rpm, the connection between the internal combustion engine and the input element at a lower speed is allowed. At the same time, it is possible to further improve the vibration damping performance of the damper device in a low rotational speed range in which vibration from the internal combustion engine tends to be large.
- the frequency of the resonance that generates the antiresonance point is smaller than the frequency fa of the antiresonance point and as small as possible.
- the frequency fa of the anti-resonance point can be made smaller, and the connection between the internal combustion engine and the input element at a lower rotational speed can be allowed. Furthermore, by configuring the damper device so that the frequency of resonance generated on the high rotation side (high frequency side) is higher than the anti-resonance point, the resonance can be detected on the high rotation speed region side where vibration is difficult to be realized. Therefore, the vibration damping performance of the damper device in the low rotation speed region can be further improved.
- the damper device (10) may be configured such that the damper device satisfies Nloop ⁇ (120 / n) ⁇ fa.
- the damper device (10) may be configured to satisfy 900 rpm ⁇ (120 / n) ⁇ fa ⁇ 1200 rpm.
- the frequency fa of the antiresonance point (A) may be expressed by the above formula (6).
- the damper device (10) has the first to third elasticity until the input torque (T) transmitted from the internal combustion engine to the input element (11) becomes equal to or greater than a predetermined threshold value (T1).
- T1 a predetermined threshold value
- You may be comprised so that the bending of a body (SP1, SP2, SP3) may not be controlled.
- the invention of the present disclosure can be used in the field of manufacturing damper devices.
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Abstract
Description
0.30≦k1/ktotal≦0.90
0.50≦k2/ktotal≦1.10
0.55≦k3/ktotal≦1.15
を満たすようにすることで、ダンパ装置10の振動減衰性能を実用上極めて良好に確保し得ることが判明している。
500rpm≦(120/n)・fa≦1500rpm
を満たすように構成されてもよい。
Claims (17)
- 内燃機関からの動力が伝達される入力要素と、出力要素とを含むダンパ装置において、
前記入力要素と前記出力要素との間でトルクを伝達する第1弾性体を含む第1トルク伝達経路と、
中間要素、前記入力要素と前記中間要素との間でトルクを伝達する第2弾性体、および前記中間要素と前記出力要素との間でトルクを伝達する第3弾性体を含み、前記第1トルク伝達経路と並列に設けられる第2トルク伝達経路とを備え、
前記第2および第3弾性体は、前記ダンパ装置の周方向に沿って並ぶように前記第1弾性体よりも前記ダンパ装置の径方向における外側に配置されるダンパ装置。 - 請求項1に記載のダンパ装置において、
前記中間要素は、流体伝動装置のタービンランナに一体回転するように連結されるダンパ装置。 - 請求項1または2に記載のダンパ装置において、
前記中間要素は、前記ダンパ装置の外周に近接するように前記入力要素に設けられた支持部により回転自在に支持されるダンパ装置。 - 請求項1から3の何れか一項に記載のダンパ装置において、
前記入力要素は、前記第1弾性体の端部と当接する内側当接部と、前記第2弾性体の端部と当接する外側当接部とを有し、
前記出力要素は、前記第1弾性体の端部と当接する内側当接部と、前記第3弾性体の端部と当接する外側当接部とを有するダンパ装置。 - 請求項4に記載のダンパ装置において、
前記入力要素は、前記第2弾性体の端部と当接する前記外側当接部を有すると共に前記内燃機関からの動力が伝達される動力入力部材に連結される第1入力部材と、前記第1弾性体の端部と当接する前記内側当接部を有すると共に前記第1弾性体と前記第2および第3弾性体との前記径方向における間で前記第1入力部材に一体回転するように連結される第2入力部材と、前記第1弾性体の端部と当接する前記内側当接部を有すると共に前記第2入力部材に一体回転するように連結される第3入力部材とを含み、
前記出力要素は、前記第2入力部材と前記第3入力部材との前記ダンパ装置の軸方向における間に配置されるダンパ装置。 - 請求項5に記載のダンパ装置において、
前記動力入力部材と前記第1入力部材との連結部と、前記第2入力部材と前記第3入力部材との連結部とは、前記第1弾性体と前記第2および第3弾性体との前記径方向における間に設けられるダンパ装置。 - 請求項6に記載のダンパ装置において、
流体伝動装置のタービンランナに固定されて前記中間要素と前記タービンランナとを一体回転するように連結するタービン連結部材を更に備え、
前記タービン連結部材と前記タービンランナとの固定部は、前記第1弾性体と前記第2および第3弾性体との前記径方向における間に設けられるダンパ装置。 - 請求項1から7の何れか一項に記載のダンパ装置において、
前記第1から第3弾性体は、コイルスプリングであり、
前記第1弾性体の外径は、前記第2および第3弾性体の外径よりも大きいダンパ装置。 - 請求項1から8の何れか一項に記載のダンパ装置において、
前記第1弾性体のばね定数は、前記第2および第3弾性体のばね定数よりも小さいダンパ装置。 - 内燃機関からの動力が伝達される入力要素と、出力要素とを含むダンパ装置において、
前記入力要素と前記出力要素との間でトルクを伝達する第1弾性体を含む第1トルク伝達経路と、
中間要素、前記入力要素と前記中間要素との間でトルクを伝達する第2弾性体、および前記中間要素と前記出力要素との間でトルクを伝達する第3弾性体を含み、前記第1トルク伝達経路と並列に設けられる第2トルク伝達経路とを備え、
前記出力要素の振動振幅が理論上ゼロになる反共振点の振動数に基づいて、前記第1、第2および第3弾性体のばね定数と、前記中間要素の慣性モーメントとが定められるダンパ装置。 - 請求項10に記載のダンパ装置において、
前記反共振点の振動数と前記内燃機関の気筒数とに基づいて、前記第1、第2および第3弾性体のばね定数と、前記中間要素の慣性モーメントとが定められるダンパ装置。 - 請求項10または11に記載のダンパ装置において、
前記反共振点の振動数を“fa”とし、前記内燃機関の気筒数を“n”としたときに、
500rpm≦(120/n)・fa≦1500rpm
を満たすように構成されるダンパ装置。 - 請求項10から12の何れか一項に記載のダンパ装置において、
前記反共振点の振動数を“fa”とし、前記内燃機関と前記入力要素とを連結するロックアップクラッチのロックアップ回転数を“Nlup”としたときに、
Nlup=(120/n)・fa
を満たすように構成されるダンパ装置。 - 請求項10から12の何れか一項に記載のダンパ装置において、
前記反共振点の振動数を“fa”とし、前記内燃機関と前記入力要素とを連結するロックアップクラッチのロックアップ回転数を“Nlup”としたときに、
Nlup<(120/n)・fa
を満たすように構成されるダンパ装置。 - 請求項12から14の何れか一項に記載のダンパ装置において、
900rpm≦(120/n)・fa≦1200rpm
を満たすように構成されるダンパ装置。 - 請求項1から16の何れか一項に記載のダンパ装置において、
前記内燃機関から前記入力要素に伝達される入力トルクが予め定められた閾値以上になるまで、前記第1から第3弾性体の撓みが規制されないダンパ装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN201580038879.1A CN106662231B (zh) | 2014-08-05 | 2015-08-05 | 减振装置 |
JP2016540726A JP6399094B2 (ja) | 2014-08-05 | 2015-08-05 | ダンパ装置 |
US15/322,941 US10072726B2 (en) | 2014-08-05 | 2015-08-05 | Damper device |
DE112015002962.1T DE112015002962B4 (de) | 2014-08-05 | 2015-08-05 | Dämpfervorrichtung |
Applications Claiming Priority (2)
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JP2014159662 | 2014-08-05 | ||
JP2014-159662 | 2014-08-05 |
Publications (1)
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WO2016021669A1 true WO2016021669A1 (ja) | 2016-02-11 |
Family
ID=55263927
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2015/072297 WO2016021669A1 (ja) | 2014-08-05 | 2015-08-05 | ダンパ装置 |
Country Status (5)
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US (1) | US10072726B2 (ja) |
JP (1) | JP6399094B2 (ja) |
CN (1) | CN106662231B (ja) |
DE (1) | DE112015002962B4 (ja) |
WO (1) | WO2016021669A1 (ja) |
Cited By (3)
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JP2019049305A (ja) * | 2017-09-08 | 2019-03-28 | アイシン精機株式会社 | ダンパ |
DE112017003935T5 (de) | 2016-09-30 | 2019-05-09 | Aisin Aw Co., Ltd. | Schwingungsdämpfungsvorrichtung |
CN113811702A (zh) * | 2019-05-09 | 2021-12-17 | 爱信艾达工业株式会社 | 减震器装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11619270B2 (en) * | 2018-12-28 | 2023-04-04 | Valeo Kapec Co., Ltd. | Lock-up device for torque converter |
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Also Published As
Publication number | Publication date |
---|---|
CN106662231A (zh) | 2017-05-10 |
DE112015002962T5 (de) | 2017-03-23 |
JPWO2016021669A1 (ja) | 2017-04-27 |
US20170138436A1 (en) | 2017-05-18 |
US10072726B2 (en) | 2018-09-11 |
JP6399094B2 (ja) | 2018-10-03 |
CN106662231B (zh) | 2019-10-15 |
DE112015002962B4 (de) | 2019-05-23 |
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