公开(公告)号：US20240060490A1

公开(公告)日：2024-02-22

申请号：US18385307

申请日：2023-10-30

Applicant: Tesla, Inc.

Inventor： Scott Michael Graves ,  Eric Bellemare ,  Yufei Zhu ,  Benjamin Dellal ,  Diego Alberto Silva Rodriguez

IPC: F04C11/00 ,  F04C2/10 ,  F04C14/26 ,  F04C14/28 ,  F04C15/00 ,  F04C15/06 ,  H02K9/19 ,  H02K11/33

CPC classification number: F04C11/008 ,  F04C2/102 ,  F04C14/26 ,  F04C14/28 ,  F04C15/0096 ,  F04C15/06 ,  H02K9/19 ,  H02K11/33 ,  F04C2240/808 ,  H02K1/32

Abstract: An electric pump system and method of operating the same involves pumping a fluid through a fluid passageway defined in a mechanical pump from a pump inlet to a hollow shaft of a motor, through the hollow shaft to an internal motor cavity defined by a housing of the motor, and through another fluid passageway defined in the motor housing and mechanical pump that leads to a pump outlet. The system and method further involve pumping the fluid through another fluid passageway defined in the mechanical pump from yet another pump inlet to the pump outlet. The temperature of fluid exiting the hollow shaft can be assessed and used by an electronic control unit (ECU) of the electric pump system to control the same. The electric pump system can be part of a cooling and lubrication system for an electric vehicle transmission, gearbox, differential or transfer case, for example.

公开(公告)号：US20190003477A1

公开(公告)日：2019-01-03

申请号：US15944841

申请日：2018-04-04

Applicant: Tesla, Inc.

Inventor： Scott Michael Graves ,  Eric Bellemare ,  Yufei Zhu ,  Benjamin Dellal ,  Diego Alberto Silva Rodriguez

IPC: F04C15/00 ,  F04C2/10 ,  F04C14/28 ,  F04C14/26 ,  F04C15/06

Abstract: An electric pump system and method of operating the same involves pumping a fluid through a fluid passageway defined in a mechanical pump from a pump inlet to a hollow shaft of a motor, through the hollow shaft to an internal motor cavity defined by a housing of the motor, and through another fluid passageway defined in the motor housing and mechanical pump that leads to a pump outlet. The system and method further involve pumping the fluid through another fluid passageway defined in the mechanical pump from yet another pump inlet to the pump outlet. The temperature of fluid exiting the hollow shaft can be assessed and used by an electronic control unit (ECU) of the electric pump system to control the same. The electric pump system can be part of a cooling and lubrication system for an electric vehicle transmission, gearbox, differential or transfer case, for example.

公开(公告)号：US11821420B2

公开(公告)日：2023-11-21

申请号：US15944841

申请日：2018-04-04

Applicant: Tesla, Inc.

Inventor： Scott Michael Graves ,  Eric Bellemare ,  Yufei Zhu ,  Benjamin Dellal ,  Diego Alberto Silva Rodriguez

IPC: F04C11/00 ,  F04C2/10 ,  H02K9/19 ,  H02K11/33 ,  F04C14/26 ,  F04C14/28 ,  F04C15/00 ,  F04C15/06 ,  H02K1/32

CPC classification number: F04C11/008 ,  F04C2/102 ,  F04C14/26 ,  F04C14/28 ,  F04C15/0096 ,  F04C15/06 ,  H02K9/19 ,  H02K11/33 ,  F04C2240/40 ,  F04C2240/603 ,  F04C2240/808 ,  H02K1/32

Abstract: An electric pump system and method of operating the same involves pumping a fluid through a fluid passageway defined in a mechanical pump from a pump inlet to a hollow shaft of a motor, through the hollow shaft to an internal motor cavity defined by a housing of the motor, and through another fluid passageway defined in the motor housing and mechanical pump that leads to a pump outlet. The system and method further involve pumping the fluid through another fluid passageway defined in the mechanical pump from yet another pump inlet to the pump outlet. The temperature of fluid exiting the hollow shaft can be assessed and used by an electronic control unit (ECU) of the electric pump system to control the same. The electric pump system can be part of a cooling and lubrication system for an electric vehicle transmission, gearbox, differential or transfer case, for example.

公开(公告)号：US11137060B2

公开(公告)日：2021-10-05

申请号：US15944889

申请日：2018-04-04

Applicant: Tesla, Inc.

Inventor： Benjamin Dellal ,  Luke Ottaway ,  Scott Michael Graves ,  Eric Bellemare

IPC: F16H57/00 ,  F16H57/04 ,  H02K7/116 ,  B60K1/00 ,  B60K17/04 ,  H02K5/20 ,  F16C25/08 ,  H02K7/00 ,  H02K7/04 ,  H02K7/08 ,  H02K15/16 ,  H02K1/20 ,  H02K9/193 ,  F16H57/032 ,  F16H57/02 ,  F16H57/037 ,  H02K9/19 ,  B60K1/02

Abstract: Systems and method for cooling and lubricating power transmission systems include providing oil to an oil tube and then to a rotor shaft via the oil tube. Oil may also be provided through at least one channel defined in an end of the oil tube inserted into an annular region of the rotor shaft, through at least one channel defined in an end of the gear shaft and between the end and a shoulder of the rotor shaft and through at least one channel defined in side surface of the rotor shaft in a region of rotor shaft inserted into the gear shaft. Such systems and method can also include providing oil a fluid passageway in a bearing shim plate via an inlet tube. Oil may also be provided through a radial gap adjacent a bearing shim plate outlet and chamber defined in the bearing shim plate.

公开(公告)号：US10587162B2

公开(公告)日：2020-03-10

申请号：US15827506

申请日：2017-11-30

Applicant: Tesla, Inc.

Inventor： Bozhi Yang ,  Tomas Vianna Martins ,  Scott Michael Graves ,  Ethan Swint ,  Eric Bellemare ,  Lev Fedoseyev ,  Benjamin Dellal ,  Leif E. Olsen ,  Alexander Hain

IPC: H02K9/19 ,  H02K1/32 ,  H02K5/173 ,  H02K7/08 ,  H02K11/40 ,  H02K9/193 ,  H02K9/197 ,  H02K1/16 ,  H02K1/27 ,  H02K3/12 ,  H02K5/16 ,  H02K11/00

Abstract: An electric motor includes a case, a stator that includes end-windings, a rotor coupled to the case via at least one rotor bearing, at least one drive motor fluid pump, and drive motor electronics. The rotor includes a hollow cylindrical body, a first shaft portion, and a second shaft portion, a fluid feed tube having a fluid receive end and a fluid feed end, the fluid feed end extending into the hollow cylindrical body, and a plurality of fluid exit ports. The drive motor electronics power the stator with or without causing rotation of the rotor. The drive motor fluid pump pumps fluid into the hollow cylindrical body via the fluid feed tube, pumps the fluid out of the plurality of fluid ports, and onto the stator end-windings to collect heat from the rotor and the stator. The heated fluid may be used for heating a battery.

公开(公告)号：US20190003572A1

公开(公告)日：2019-01-03

申请号：US15944889

申请日：2018-04-04

Applicant: Tesla, Inc.

Inventor： Benjamin Dellal ,  Luke Ottaway ,  Scott Michael Graves ,  Eric Bellemare

IPC: F16H57/04

Abstract: Systems and method for cooling and lubricating power transmission systems include providing oil to an oil tube and then to a rotor shaft via the oil tube. Oil may also be provided through at least one channel defined in an end of the oil tube inserted into an annular region of the rotor shaft, through at least one channel defined in an end of the gear shaft and between the end and a shoulder of the rotor shaft and through at least one channel defined in side surface of the rotor shaft in a region of rotor shaft inserted into the gear shaft. Such systems and method can also include providing oil a fluid passageway in a bearing shim plate via an inlet tube. Oil may also be provided through a radial gap adjacent a bearing shim plate outlet and chamber defined in the bearing shim plate.

公开(公告)号：US20250051678A1

公开(公告)日：2025-02-13

申请号：US18717403

申请日：2023-01-05

Applicant: Tesla, Inc.

Inventor： Scott Graves ,  Wenyang Zhang ,  Jiazheng Hong ,  Hai Lan ,  Diego A. Silva Rodriguez ,  Eric Bellemare ,  Eric Thibault

IPC: C10M169/04 ,  C10M101/02 ,  C10M107/02 ,  C10N20/02 ,  C10N30/02 ,  C10N40/00 ,  C10N40/04 ,  F16H57/04 ,  H02K7/116 ,  H02K9/193 ,  H02K9/26

Abstract: Fluid formulations, including low traction fluid, low viscosity motor fluid and high pressure viscosity coefficient fluid formulations, that may be used in vehicle drive trains are described herein. The fluid formulations include a base oil and an additive. The fluid formulations may provide efficiency advantages to electric vehicle drive trains.

公开(公告)号：US20220003306A1

公开(公告)日：2022-01-06

申请号：US17477402

申请日：2021-09-16

Applicant: Tesla, Inc.

Inventor： Scott Michael Graves ,  Eric Bellemare ,  Alexander Hain

IPC: F16H57/04 ,  H02K7/116 ,  B60K1/00 ,  B60K17/04 ,  H02K5/20 ,  F16C25/08 ,  H02K7/00 ,  H02K7/04 ,  H02K7/08 ,  H02K15/16 ,  H02K1/20 ,  H02K9/193

Abstract: Systems and methods for cooling power transmission systems are include providing oil through an aperture defined in a housing to a stator cooling ring, through the stator cooling ring and into stator cooling channels, through the stator cooling channels and into spaces defined between the housing and jet rings, and through holes in the jet rings and onto the end-windings. The stator cooling ring, stator cooling channels and jet rings can encircle the stator and end-windings and, via the holes in the jet rings, spray pressurized jets of oil from various angles onto the end-windings, and in particular middle regions thereof. Seals may be used between the jet rings and housing, and between the jet rings and stator ends. The seals may be compressed so as to form an interference fit between the jet rings and housing or stator ends as the case may be.

公开(公告)号：US11218045B2

公开(公告)日：2022-01-04

申请号：US16813416

申请日：2020-03-09

Applicant: Tesla, Inc.

Inventor： Bozhi Yang ,  Tomas Vianna Martins ,  Scott Michael Graves ,  Ethan Swint ,  Eric Bellemare ,  Lev Fedoseyev ,  Benjamin Dellal ,  Leif E. Olsen ,  Alexander Hain

IPC: H02K9/19 ,  H02K1/32 ,  H02K5/173 ,  H02K7/08 ,  H02K11/40 ,  H02K9/193 ,  H02K9/197 ,  H02K1/16 ,  H02K1/27 ,  H02K3/12 ,  H02K5/16 ,  H02K11/00

Abstract: An electric motor includes a case, a stator that includes end-windings, a rotor coupled to the case via at least one rotor bearing, at least one drive motor fluid pump, and drive motor electronics. The rotor includes a hollow cylindrical body, a first shaft portion, and a second shaft portion, a fluid feed tube having a fluid receive end and a fluid feed end, the fluid feed end extending into the hollow cylindrical body, and a plurality of fluid exit ports. The drive motor electronics power the stator with or without causing rotation of the rotor. The drive motor fluid pump pumps fluid into the hollow cylindrical body via the fluid feed tube, pumps the fluid out of the plurality of fluid ports, and onto the stator end-windings to collect heat from the rotor and the stator. The heated fluid may be used for heating a battery.

公开(公告)号：US20180083509A1

公开(公告)日：2018-03-22

申请号：US15827506

申请日：2017-11-30

Applicant: Tesla, Inc.

Inventor： Bozhi Yang ,  Tomas Vianna Martins ,  Scott Michael Graves ,  Ethan Swint ,  Eric Bellemare ,  Lev Fedoseyev ,  Benjamin Dellal ,  Leif E. Olsen ,  Alexander Hain

IPC: H02K9/193 ,  H02K9/197 ,  H02K1/32 ,  H02K5/173 ,  H02K7/08

CPC classification number: H02K1/32 ,  H02K1/16 ,  H02K1/274 ,  H02K3/12 ,  H02K5/16 ,  H02K5/1732 ,  H02K7/083 ,  H02K9/193 ,  H02K9/197 ,  H02K11/00 ,  H02K11/40

Abstract: An electric motor includes a case, a stator that includes end-windings, a rotor coupled to the case via at least one rotor bearing, at least one drive motor fluid pump, and drive motor electronics. The rotor includes a hollow cylindrical body, a first shaft portion, and a second shaft portion, a fluid feed tube having a fluid receive end and a fluid feed end, the fluid feed end extending into the hollow cylindrical body, and a plurality of fluid exit ports. The drive motor electronics power the stator with or without causing rotation of the rotor. The drive motor fluid pump pumps fluid into the hollow cylindrical body via the fluid feed tube, pumps the fluid out of the plurality of fluid ports, and onto the stator end-windings to collect heat from the rotor and the stator. The heated fluid may be used for heating a battery.