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公开(公告)号：US12218550B2
公开(公告)日：2025-02-04
申请号：US17736554
申请日：2022-05-04
Applicant: Ford Global Technologies, LLC
Inventor： Bharath Madduri , Dengfu Zhang , Chin-Yuan Perng , William Guarino
Abstract: An electrical machine assembly includes a shaft rotatable about an axis of an electric machine and first and second endcaps mounted to the shaft. The first endcap includes a first endcap coolant channel. The second endcap includes a second endcap coolant channel. A rotor is mounted to the shaft axially between the first and second endcaps. The rotor includes first rotor coolant channels and second rotor coolant channels. The first rotor coolant channels are configured to communicate liquid coolant that is received from the first endcap coolant channel axially through the rotor in a first direction. The second rotor coolant channels are configured to communicate liquid coolant that is received from the second endcap coolant channel axially through the rotor in a second direction that is opposite the first direction.
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公开(公告)号：US20230361640A1
公开(公告)日：2023-11-09
申请号：US17736554
申请日：2022-05-04
Applicant: Ford Global Technologies, LLC
Inventor： Bharath Madduri , Dengfu Zhang , Chin-Yuan Perng
CPC classification number: H02K1/32 , B60L50/51 , H02K5/20 , H02K9/19 , B60L2240/425
Abstract: An electrical machine assembly includes a shaft rotatable about an axis of an electric machine and first and second endcaps mounted to the shaft. The first endcap includes a first endcap coolant channel. The second endcap includes a second endcap coolant channel. A rotor is mounted to the shaft axially between the first and second endcaps. The rotor includes first rotor coolant channels and second rotor coolant channels. The first rotor coolant channels are configured to communicate liquid coolant that is received from the first endcap coolant channel axially through the rotor in a first direction. The second rotor coolant channels are configured to communicate liquid coolant that is received from the second endcap coolant channel axially through the rotor in a second direction that is opposite the first direction.
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公开(公告)号：US20240413687A1
公开(公告)日：2024-12-12
申请号：US18333122
申请日：2023-06-12
Applicant: Ford Global Technologies, LLC
Inventor： Matthew Schmitt , Joel Hetrick , Devan Anderson , Jeremy Ikerd , Bharath Madduri , Chin-Yuan Perng , Sudhir Kumar
IPC: H02K1/32 , H02K1/2706 , H02K7/00
Abstract: An electric motor may be provided having a rotor shaft having an internal oil channel therein and a plurality of radial feed oil channels positioned about a middle and center of the rotor shaft, a rotor core, the rotor core having a plurality of axial channels therein, and a pair of end plates coupled to the rotor shaft, where each end plate has alternating inclined channels and drain holes so as to alternate a flow direction of the oil in each adjacent pole.
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公开(公告)号：US11754169B1
公开(公告)日：2023-09-12
申请号：US17859776
申请日：2022-07-07
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： William David Guarino , Bharath Madduri , Derek Kinch , Kyle Ogrodzinski
IPC: F16H57/04
CPC classification number: F16H57/0424 , F16H57/0417 , F16H57/0471 , F16H57/0476 , F16H57/0483
Abstract: A vehicle transaxle includes a housing, an electric machine, and rotating components. The housing defines an internal cavity, a first channel, and a second channel. The first and second channels branch from a common inlet. The electric machine and rotating components are disposed within the internal cavity. The first channel is configured to deliver fluid to the electric machine for cooling. The second channel is configured to deliver the fluid to the rotating components for lubrication. The cooling channel is sized relative to the lubrication channel such that the fluid is biased from the inlet and toward the second channel in response to a temperature of the fluid being less than a threshold and is biased from the inlet and toward the first channel in response to the temperature of the fluid being greater than the threshold.
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