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11. 发明公开

US20240254974A1 STRAIN MULTIPLYING COMPRESSION ENGINE 审中-公开
公开(公告)号：US20240254974A1
公开(公告)日：2024-08-01
申请号：US18418568
申请日：2024-01-22
申请人： Recovery Force, LLC
发明人： Ryan Hamilton , Jeffrey Schwegman
IPC分类号： F03G7/06
CPC分类号： F03G7/062 , F03G7/06143 , F03G7/064 , F05B2280/5006
摘要： A compression apparatus includes a pair of compression engines incorporating shape memory alloy (SMA) wires configured to provide compression to the limb or torso of a person. The compression engines are in an overlapping arrangement to provide a strain capability of the compression apparatus that is greater than the additive strain capability of the pair of compression engines.

12. 发明授权

US12049876B2 Temperature differential engine 有权
公开(公告)号：US12049876B2
公开(公告)日：2024-07-30
申请号：US17696012
申请日：2022-03-16
申请人： Rahim Fotuhi
发明人： Rahim Fotuhi
IPC分类号： F03G7/06
CPC分类号： F03G7/0641 , F03G7/062 , F03G7/0633
摘要： In an example, an engine includes a thermal expansion unit comprising expansion material that expands in response to a temperature increase of the expansion material and contracts in response to a temperature decrease of the expansion material. The engine includes a structure comprising a heat receiving region, wherein at least a portion of the thermal expansion unit is disposed within the structure. The heat receiving region is configured to transfer thermal energy from a source of thermal energy to the expansion material through a first thermal energy transference path. The transfer of thermal energy to the thermal expansion unit causes expansion of the expansion material within the thermal expansion unit. The expansion of the expansion material causes an increase in length of the thermal expansion unit. The increase in length of the thermal expansion unit causes establishment of a second thermal energy transference path through which thermal energy is transferred from the expansion material to outside the thermal expansion unit.

13. 发明授权

US11897379B2 Seat with shape memory material member actuation 有权
公开(公告)号：US11897379B2
公开(公告)日：2024-02-13
申请号：US17506111
申请日：2021-10-20
申请人： Toyota Motor Engineering & Manufacturing North America, Inc.
发明人： Ryohei Tsuruta , Brian J. Pinkelman , Umesh N. Gandhi , Paul A. Gilmore
IPC分类号： B60N2/66 , A47C7/46 , F03G7/06 , B60N2/02
CPC分类号： B60N2/667 , A47C7/462 , B60N2/0244 , B60N2/66 , F03G7/062 , F03G7/064 , F03G7/06146 , A47C7/465 , F03G7/0614
摘要： A vehicle seat can be configured to provide support to a vehicle occupant in conditions when lateral acceleration is experienced. Shape memory material members can be operatively positioned with respect to a seat portion of the vehicle seat. The shape memory material members can be selectively activated by an activation input. When activated, the shape memory material members can engage a seat pan so as to cause the seat pan to tilt in a respective lateral direction. As a result, a seat cushion supported by the seat pan can also tilt in the respective lateral direction. The seat cushion can be tilted in a lateral direction that is opposite to the direction of the lateral acceleration. Thus, the effects of lateral acceleration felt by a seat occupant can be reduced. The shape memory material members can be selectively activated based on vehicle speed, steering angle, and/or lateral acceleration.

14. 发明授权

US11841008B1 Shape-memory material actuators 有权
公开(公告)号：US11841008B1
公开(公告)日：2023-12-12
申请号：US18163621
申请日：2023-02-02
申请人： Toyota Motor Engineering & Manufacturing North America, Inc.
发明人： Shardul S. Panwar , Michael P. Rowe , Maduran Palaniswamy , Ryohei Tsuruta
IPC分类号： F03G7/06
CPC分类号： F03G7/06143 , F03G7/062
摘要： An actuator that includes a shell, a ring structure within the shell, a shape-memory material wire fixed at opposite points of the ring structure to extend in a first direction across a width of the ring structure, and a cooling fluid provided within the shell and in fluid communication with the shape-memory material wire. When the shape-memory material wire is heated, the shape-memory material wire contracts in the first direction to reduce the width of the ring structure and increases a height of the ring structure extending in a second direction perpendicular to the first direction.

15. 发明公开

US20230374977A1 SHAPE-MEMORY MATERIAL ACTUATORS 审中-公开
公开(公告)号：US20230374977A1
公开(公告)日：2023-11-23
申请号：US18163621
申请日：2023-02-02
申请人： Toyota Motor Engineering & Manufacturing North America, Inc.
发明人： Shardul S. Panwar , Michael P. Rowe , Maduran Palaniswamy , Ryohei Tsuruta
IPC分类号： F03G7/06
CPC分类号： F03G7/06143 , F03G7/062
摘要： An actuator that includes a shell, a ring structure within the shell, a shape-memory material wire fixed at opposite points of the ring structure to extend in a first direction across a width of the ring structure, and a cooling fluid provided within the shell and in fluid communication with the shape-memory material wire. When the shape-memory material wire is heated, the shape-memory material wire contracts in the first direction to reduce the width of the ring structure and increases a height of the ring structure extending in a second direction perpendicular to the first direction.

16. 发明公开

US20230304479A1 LINEAR DRIVE AND LINEAR DRIVE ARRANGEMENT 审中-公开
公开(公告)号：US20230304479A1
公开(公告)日：2023-09-28
申请号：US18020787
申请日：2021-08-04
申请人： Conti Temic microelectronic GmbH
发明人： Michael Beuschel , Stefan Bauer
IPC分类号： F03G7/06 , H02N10/00
CPC分类号： F03G7/06143 , F03G7/064 , F03G7/0665 , F03G7/062 , H02N10/00
摘要： A linear drive comprises: a lever having a through bore; a rod which extends through the bore; a bearing supporting the rod; a shape memory alloy connected to the lever and a first fixed bearing, the shape memory alloy exerting a tensile force on the lever when electrical power is applied; and a restoring element connected to the lever and a second fixed bearing, the restoring element exerting a restoring force on the lever and counter to the tensile force. In a first state, the lever is tilted making a non-positive connection between the lever and the rod. In a second state the lever is displaced in parallel to and in the direction of the tensile force. In a third state the lever is tilted back releasing the non-positive connection. In a fourth state, the lever is displaced in parallel to and in the direction of the restoring force.

17. 发明公开

US20240280088A1 SHAPE MEMORY MATERIAL MEMBER-BASED ACTUATOR WITH ELECTROSTATIC CLUTCH 审中-公开
公开(公告)号：US20240280088A1
公开(公告)日：2024-08-22
申请号：US18172637
申请日：2023-02-22
申请人： Toyota Motor Engineering & Manufacturing North America, Inc.
发明人： Yufei Zhu , Paul A. Gilmore , Taewoo Nam , Rikin Gupta , Xintong Deng
IPC分类号： F03G7/06 , H02N13/00
CPC分类号： F03G7/06143 , F03G7/062 , H02N13/00 , F03G7/066
摘要： An actuator can include one or more shape memory material members and an electrostatic clutch. When an activation input is provided to the one or more shape memory material members, the one or more shape memory material members contract, which causes the actuator to morph into an activated configuration. A height of the actuator increases in the activated configuration. The electrostatic clutch can be configured to maintain the actuator in the activated configuration when the activation input to the one or more shape memory material members is discontinued. One or more processors can be operatively connected to selectively and independently activate the one or more shape memory material members and the electrostatic clutch.

18. 发明授权

US11965493B2 Adjustable deforming composite structure based on hydrogen-induced expansion effect and preparation method therefor 有权
公开(公告)号：US11965493B2
公开(公告)日：2024-04-23
申请号：US17622820
申请日：2020-12-08
申请人： CENTRAL SOUTH UNIVERSITY
发明人： Chengshang Zhou , Yong Liu , Zhongyuan Duan
IPC分类号： B32B15/01 , F03G7/06 , B33Y80/00
CPC分类号： F03G7/0616 , B32B15/01 , B32B15/013 , F03G7/0613 , F03G7/062 , B33Y80/00 , F05C2253/04
摘要： An adjustable deforming composite structure based on a hydrogen-induced expansion effect and a preparation method therefor are provided. The hydrogen-induced expansion effect means metals absorb hydrogen under a hydrogen-containing atmosphere and at a temperature to produce a volume expansion effect. Reactions between the metals and hydrogen are reversible reactions. When a hydrogen partial pressure is reduced or the temperature is increased, the hydrogen in the metals is removed, and the metals are restored to an original shape. Under a stimulation of external hydrogen and heat, a composite of a hydrogen-absorbing metal and other non-hydrogen-absorbing materials undergo an adjustable deformation according to a design, and a material undergoes reversible shape changes. The preparation method is applied to composite materials for a 4D printing and is used for an intelligent shape adjustment at a medium to high temperature.

19. 发明公开

US20240084788A1 SOFT ACTUATORS WITH TWISTED COILED POLYMER ACTUATORS 审中-公开
公开(公告)号：US20240084788A1
公开(公告)日：2024-03-14
申请号：US17941079
申请日：2022-09-09
申请人： Toyota Motor Engineering & Manufacturing North America, Inc.
发明人： Yuyang Song , Shinnosuke Shimokawa , Danil V. Prokhorov , Umesh N. Gandhi
IPC分类号： F03G7/06
CPC分类号： F03G7/0612 , F03G7/06143 , F03G7/0616 , F03G7/062
摘要： A soft actuator includes an origami structure with an inflatable hollow body formed from at least one of Dyneema fabric or Kevlar fabric, and a plurality of TCPAs formed from at least one of polyethylene terephthalate, spandex, and nylon. The soft actuator also includes a plurality of heating wires disposed on the plurality of TCPAs and a controller configured to selectively heat the plurality of heating wires such that the plurality of TCPAs are selectively actuated by being heated by the plurality of heating wires.

20. 发明授权

US11927206B2 Hybrid actuation devices including alignment aids 有权
公开(公告)号：US11927206B2
公开(公告)日：2024-03-12
申请号：US18164224
申请日：2023-02-03
申请人： Toyota Motor Engineering & Manufacturing North America, Inc.
发明人： Michael P. Rowe , Max Herzog , Maduran Palaniswamy , Ryohei Tsuruta
IPC分类号： F15B15/10 , F03G7/06
CPC分类号： F15B15/103 , F03G7/06143 , F03G7/062
摘要： A hybrid actuation device that includes a first plate coupled to a second plate, a shape memory alloy wire coupled to the first plate, and an artificial muscle positioned between the first plate and the second plate. The artificial muscle includes a housing having an electrode region and an expandable fluid region, a first electrode and a second electrode each disposed in the electrode region of the housing and a dielectric fluid disposed within the housing. The expandable fluid region of the housing is positioned apart from a perimeter of the first plate and the second plate. A first alignment aid is positioned between the first plate and the first electrode, the first alignment aid having an inner surface facing the first plate and an outer surface facing the first electrode.

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