Invention Grant
- Patent Title: Electric drive
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Application No.: US16982246Application Date: 2019-02-18
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Publication No.: US11368071B2Publication Date: 2022-06-21
- Inventor: David Colin Worker , Richard Iain Mockridge
- Applicant: Dyson Technology Limited
- Applicant Address: GB Wiltshire
- Assignee: Dyson Technology Limited
- Current Assignee: Dyson Technology Limited
- Current Assignee Address: GB Wiltshire
- Agency: Faegre Drinker Biddle & Reath LLP
- Priority: GB1804524 20180321
- International Application: PCT/GB2019/050419 WO 20190218
- International Announcement: WO2019/180403 WO 20190926
- Main IPC: H02K7/10
- IPC: H02K7/10 ; F16H13/08 ; F16H13/14 ; H02K5/173

Abstract:
An electric drive includes a motor and a transmission for transferring torque from the motor to a tool. The transmission includes a plurality of planetary rollers which are driven by a rotary shaft of the motor, and an output ring which is connectable to the tool, and which is driven by the planetary rollers. The transmission further includes a roller casing which is secured to a housing of the motor, and which supports parallel planetary shafts upon which the planetary rollers are mounted for rotation relative to the roller casing, and a bearing having an inner race which engages the roller casing, and an outer race which engages the inner periphery of the output ring.
Public/Granted literature
- US20210036578A1 ELECTRIC DRIVE Public/Granted day:2021-02-04
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