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    SELECTIVE PERMEABILITY ROTOR STRUCTURE FOR INTERIOR PERMANENT MAGNET MACHINE
    4.
    发明申请
    SELECTIVE PERMEABILITY ROTOR STRUCTURE FOR INTERIOR PERMANENT MAGNET MACHINE 有权

    公开(公告)号：US20250158465A1

    公开(公告)日：2025-05-15

    申请号：US18509914

    申请日：2023-11-15

    Applicant: GM Global Technology Operations LLC

    Inventor： Alireza Fatemi ,  Eric C. Clough ,  Thomas W. Nehl ,  Wesley G. Zanardelli ,  David A. Smith

    IPC: H02K1/28 ,  B60K6/26 ,  H02K1/276 ,  H02K21/14

    Abstract: A radial flux electric motor includes a stator having a radially inner stator surface and stator windings arranged thereon. The motor also includes a rotor mounted inside the stator and configured to rotate relative thereto about an axis. The rotor has a rotor core constructed from a ferromagnetic material having relatively high magnetic permeability and defined by a rotor outer surface establishing an airgap between the rotor and the stator. The rotor also has a plurality of magnetic poles set in the rotor core and configured to generate magnetic flux. The rotor additionally has inserts constructed from a material having relatively low magnetic permeability in at least one geometric direction. Each insert is mechanically fixed to the rotor core to thereby control magnetic flux distribution and minimize flux leakage inside the rotor.

    Hierarchical sandwich structures
    5.
    发明授权
    Hierarchical sandwich structures 有权
    分层三明治结构

    公开(公告)号：US09533642B2

    公开(公告)日：2017-01-03

    申请号：US14497036

    申请日：2014-09-25

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jacob M. Hundley ,  Alan J. Jacobsen ,  Sophia Yang ,  Eric C. Clough ,  Jay C. Kussmaul

    IPC: B60R19/00 ,  B60R19/18

    CPC classification number: B60R19/18 ,  B60R2019/1866

    Abstract: A hierarchical sandwich box impact beam for a vehicle that includes spaced apart micro-truss sandwich structures defining an open area therebetween. The impact beam includes an outer facing sandwich structure including an outer facesheet, an inner facesheet and a micro-truss core formed therebetween, and an inner facing sandwich structure including an outer facesheet, an inner facesheet and a micro-truss core formed therebetween. One or more structural connecting sections are coupled to the inner and outer facing sandwich structures so as to define the open area between the structures.

    Abstract translation: 一种用于车辆的分级三明治冲击梁，其包括间隔开的微型桁架三明治结构，其在其间限定开放区域。 冲击梁包括外表面的夹层结构，其包括形成在其间的外表面，内表面和微型桁架芯，以及内表面的夹层结构，其包括形成在其间的外表面，内表面和微桁架芯。 一个或多个结构连接部分联接到内表面和外面的夹层结构，以便限定结构之间的开放区域。

    LOW ENERGY PROCESS FOR MAKING CURVED SANDWICH STRUCTURES WITH LITTLE OR NO RESIDUAL STRESS
    8.
    发明申请
    LOW ENERGY PROCESS FOR MAKING CURVED SANDWICH STRUCTURES WITH LITTLE OR NO RESIDUAL STRESS 有权
    用于制造具有小的或无残余应力的弯曲的三维结构的低能量过程

    公开(公告)号：US20150298443A1

    公开(公告)日：2015-10-22

    申请号：US14255389

    申请日：2014-04-17

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jacob M. Hundley ,  Nilesh D. Mankame ,  Eric C. Clough ,  Alan J. Jacobsen ,  Elisabeth J. Berger

    IPC: B32B37/02

    CPC classification number: B32B37/02 ,  B32B15/04 ,  B32B27/06 ,  B32B27/20 ,  B32B37/146 ,  B32B38/1866 ,  B32B2250/03 ,  B32B2250/40 ,  B32B2262/101 ,  B32B2262/106 ,  B32B2310/0831 ,  B32B2605/003 ,  B60R21/34 ,  B60R2021/343

    Abstract: A process for fabricating a curved beam including a micro-truss structure. In one embodiment, the process includes fabricating the micro-truss structure on a bottom facesheet, where the micro-truss structure is only partially cured so that it is readily bendable, and then forming the partially cured micro-truss structure and bottom facesheet over a curved fixture, where the partially cured micro-truss structure is then fully cured and hardened to its final curved state. A top facesheet is then adhered to a top surface of the micro-truss structure. In an alternate embodiment, a curved bottom facesheet is forced flat against a fixture and the micro-truss structure is formed while the bottom facesheet is secured to the fixture to a partially cured state. The bottom facesheet is then released from the fixture, which causes it to return to its curved configuration causing the micro-truss structure to bend.

    Abstract translation: 一种制造包括微型桁架结构的弯曲梁的方法。 在一个实施例中，该方法包括在底面板上制造微型桁架结构，其中微桁架结构仅部分固化，使得其易于弯曲，然后在部分固化的微桁架结构和底面板上形成 弯曲夹具，其中部分固化的微型桁架结构然后完全固化并硬化至其最终弯曲状态。 然后将顶部面板粘附到微型桁架结构的顶部表面。 在替代实施例中，弯曲的底部面板被迫使平台抵靠固定装置，并且形成微型桁架结构，同时底部面板被固定到固定装置以达到部分固化状态。 底部面板然后从固定装置中释放，这使其返回到其弯曲构造，导致微型桁架结构弯曲。

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