公开(公告)号：US20220285753A1

公开(公告)日：2022-09-08

申请号：US17193771

申请日：2021-03-05

Applicant: Bell Textron Inc.

Inventor： Joseph Dean Rainville ,  Dakota Easley

IPC: H01M10/625 ,  H01M10/613 ,  H01M10/6568 ,  H01M10/643 ,  H01M10/6566 ,  B64D27/24 ,  B64D33/08 ,  B64C27/32 ,  B60L50/60 ,  B60L58/26

Abstract: An electric-powered aircraft battery pack and associated battery pack cooling system. The battery pack comprises a plurality of thermally conductive cooling plates and at least one battery cell coupled with each cooling plate. Heat generated by the battery cells is transferred by conduction to the associated cooling plate. The heat carried by the cooling plates is then transferred by convection to a fluid medium. In some embodiments, heat is transferred from the cooling plate to ambient air or ram air of the aircraft. In some embodiments, heat is transferred from the cooling plate to coolant liquid of a battery pack cooling system.

公开(公告)号：US20200223538A1

公开(公告)日：2020-07-16

申请号：US16249544

申请日：2019-01-16

Applicant: Bell Textron Inc.

Inventor： Dakota Easley ,  John Robert Wittmaak, JR. ,  Matthew Edward Louis ,  Russell C. Peters

IPC: B64C27/80 ,  B64C29/02

Abstract: A rotor system is provided in one example embodiment and may include a first pair of rotor blades comprising a first pitch and a first diameter; and a second pair of rotor blades comprising a second pitch and a second diameter, wherein the first pitch of the first pair of rotor blades and the second pitch of the second pair of rotor blades are different.