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公开(公告)号：US12117052B2
公开(公告)日：2024-10-15
申请号：US18262343
申请日：2022-01-20
发明人： Maryam Talimi , Robert Ian Boersema
IPC分类号： F16D41/20
CPC分类号： F16D41/206
摘要： In an aspect, a decoupler is provided and includes an input member, an output member, a one-way clutch and an isolation spring. The one-way clutch receives torque from the input member. The isolation spring is helical, having a first helical end and a second helical end, and has first and second axial ends, and radially outer and inner surfaces. The isolation spring receives torque from the clutch, and transmits torque to the output member. The isolation spring changes size radially based on torque. The input member includes a radial projection that is positioned to frictionally engage one of the radially outer and inner surfaces of the spring when the spring reaches a selected size. Frictional engagement of the radial projection with the spring generates torque transfer directly from the input member to the spring in parallel with torque transfer from the input member to the spring through the clutch.
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公开(公告)号：US12085135B2
公开(公告)日：2024-09-10
申请号：US18249883
申请日：2021-11-19
发明人： Mahdi Tafreshnia , Harley Cooper
CPC分类号： F16D7/022 , B60K25/02 , F16D41/206 , B60K2025/022
摘要： In an aspect, a decoupler is provided for mounting to a shaft in an accessory drive between an engine and an accessory in a vehicle. The decoupler includes a pulley, a hub, a wrap spring clutch, an isolation spring, and a carrier that is positioned to hold an end of the wrap spring clutch and an end of the isolation spring. The carrier has a slot for holding the end of the wrap spring clutch and wherein the slot has a slot exit through which the wrap spring clutch exits from the slot to wrap around an exterior of the carrier. The carrier has a bridge configured to fail before the end wall fails. This permits the carrier to open radially so as to bring the end wall into abutment with a wall of the pulley reducing stress in the end wall.
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公开(公告)号：US11879536B2
公开(公告)日：2024-01-23
申请号：US17753168
申请日：2020-08-18
IPC分类号： F16H55/36 , F02B67/06 , F16F15/123 , F16H7/20 , B60K25/02
CPC分类号： F16H55/36 , F02B67/06 , F16F15/123 , F16H7/20 , B60K25/02 , F16F2222/08 , F16F2230/30 , F16F2232/02 , F16F2236/08 , F16H2055/366
摘要： In one aspect, a rotary device is provided, and includes a shaft adapter, a chambered member, a seal member and at least one internal torque transfer member. The shaft adapter is connectible to a crankshaft or accessory shaft and defines an axis. The chambered member (e.g. a pulley) is rotatably connected to it, and at least partially encloses a chamber (e.g. for oil), and includes a circumferential portion, a first side wall, and a second side wall which is a separate member from the circumferential portion. One of the circumferential portion and the second side wall has projections thereon, and the other has valleys that mate with the projections with no clearance, so as to be able to transfer a torque of at least 10 Nm into one another without plastic deformation. A seal member is compressed between the second side wall and the circumferential portion.
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公开(公告)号：US20220307414A1
公开(公告)日：2022-09-29
申请号：US17638565
申请日：2020-08-27
发明人： David BALSDON , Evan HURRY , Hao TRAN , Andrew Malcolm BOYES
摘要： A clutch system includes a rotary input member, a wrap spring clutch and a rotary output member. The wrap spring clutch has a first end, a second end, and a plurality of coils. The stiffness of the wrap spring clutch is selected such that, when transmitting less than a selected coil engagement torque, the clutch system transmits torque helically from the rotary input member, to the second end, helically through the wrap spring clutch to the first end, and into the rotary output member. When transmitting more than the selected coil engagement torque, the clutch system transmits torque in parallel from the rotary input member, to the second end, helically through the wrap spring clutch to the first end, and into the rotary output member, and from the rotary input member through the coil engagement surface, to the first end, and into the rotary output member.
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公开(公告)号：US20220299099A1
公开(公告)日：2022-09-22
申请号：US17753168
申请日：2020-08-18
IPC分类号： F16H55/36 , F16H7/20 , F02B67/06 , F16F15/123
摘要： In one aspect, a rotary device is provided, and includes a shaft adapter, a chambered member, a seal member and at least one internal torque transfer member. The shaft adapter is connectible to a crankshaft or accessory shaft and defines an axis. The chambered member (e.g. a pulley) is rotatably connected to it, and at least partially encloses a chamber (e.g. for oil), and includes a circumferential portion, a first side wall, and a second side wall which is a separate member from the circumferential portion. One of the circumferential portion and the second side wall has projections thereon, and the other has valleys that mate with the projections with no clearance, so as to be able to transfer a torque of at least 10 Nm into one another without plastic deformation. A seal member is compressed between the second side wall and the circumferential portion.
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公开(公告)号：US20220290735A1
公开(公告)日：2022-09-15
申请号：US17754153
申请日：2020-09-28
IPC分类号： F16F15/134 , F16H55/36 , F16D3/12 , F02B67/06
摘要： In an aspect, a system is provided for reducing torsional vibrations for an engine having a crankshaft. The system includes an isolation device, which includes a shaft adapter that is mounted to the crankshaft, a pulley that is rotatably mounted to the shaft adapter, and at least one isolation spring that resiliently transfers torque between the pulley and the shaft adapter. The system further includes a torsional vibration damper that is mountable to the crankshaft. A noise generation space extends axially between the isolation device and the torsional vibration damper. The system further includes a noise abatement ring that extends axially from one of the isolation device and the torsional vibration damper towards the other of the isolation device and the torsional vibration damper, and at least partially radially encloses at least a portion of the noise generation space.
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公开(公告)号：US10975939B2
公开(公告)日：2021-04-13
申请号：US15696994
申请日：2017-09-06
发明人： Geoffrey W. Ryeland , Ron Farewell , Andrew M. Boyes , Thelma Neudorf , Jason R. Desouza-Coelho , John R. Antchak
摘要： In an aspect, a tensioner is provided for tensioning a belt and includes first and second tensioner arms having first and second pulleys respectively. The first and second pulleys are configured for engagement with first and second belt spans, and are biased in first and second free arm directions respectively. A second tensioner arm stop is positioned to limit the movement of the second tensioner arm in a direction opposite the second free arm direction. The second tensioner arm stop is positioned such that, in use, the second pulley is engaged with the endless drive member while the second tensioner arm is engaged with the second tensioner arm stop throughout a first selected range of operating conditions.
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公开(公告)号：US20210018049A1
公开(公告)日：2021-01-21
申请号：US17040860
申请日：2019-03-26
发明人： David BALSDON , Hao Q. TRAN , Andrew M. BOYES
摘要： In an aspect, an automotive air conditioning assembly comprising a scroll compressor and a wrap spring clutch. The wrap spring clutch enables the use of a comparatively smaller pulley (a diameter of at most 85 mm) which comparatively increases the compressor speed and hence cooling capacity at a given engine speed. The clutch requires low power (e.g. less than 5 Watts) for continuous operation.
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公开(公告)号：US10794448B2
公开(公告)日：2020-10-06
申请号：US15560098
申请日：2016-03-21
发明人： Boris Replete
IPC分类号： F16F15/121 , B60K25/02 , F16H55/36 , F16F15/123
摘要： In an aspect, an isolator is provided for isolating a device driven by an engine via an endless drive member. The isolator includes a shaft adapter that is connectable with a shaft of the device and that defines an isolator axis, a rotary drive member that is engageable with the endless drive member, a first isolation spring arrangement that includes a first torsion spring, and that is positioned to transfer torque between the shaft adapter and an intermediate drive member, and a second isolation spring arrangement that is positioned to transfer torque between the intermediate member and the rotary drive member.
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公开(公告)号：US10415649B2
公开(公告)日：2019-09-17
申请号：US15239450
申请日：2016-08-17
IPC分类号： F16D7/02 , F02B67/06 , F16D13/76 , F16D41/20 , F16F15/123 , F16H55/36 , F16D13/08 , B60K25/02
摘要： A decoupler having an input member, an output member and a combination one-way clutch and torsional isolator that couples the input and output members. The combination one-way clutch and torsional isolator includes a single helical coil spring. The decoupler being designed to provide torsional damping through a range of torque transmitted through the decoupler, the range including a maximum rate torque for the decoupler.
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