Invention Grant
- Patent Title: Cooling stator windings of an electric machine
- Patent Title (中): 冷却电机的定子绕组
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Application No.: US13974287Application Date: 2013-08-23
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Publication No.: US09401630B2Publication Date: 2016-07-26
- Inventor: Tyler Garrard , Will Robert Nielsen Hippen , Christopher Meszaros , Diana Brehob
- Applicant: EcoMotors, Inc.
- Applicant Address: US MI Allen Park
- Assignee: EcoMotors, Inc.
- Current Assignee: EcoMotors, Inc.
- Current Assignee Address: US MI Allen Park
- Agency: Barnes & Thornburg LLP
- Main IPC: F02B39/10
- IPC: F02B39/10 ; H02K9/19 ; H02P29/00 ; H02K1/20 ; F02B37/10 ; H02K5/128

Abstract:
In an electric machine, there may be lubrication and cooling needs, such as lubricating bearings and cooling coils of the electric machine. When lubricant is used for both, it is desirable to prioritize the lubrication to the bearings. By providing check valves between a pressurized oil manifold and the cooling coils, lubricant is diverted to the coils only when pressure in the system is sufficient to satisfy both lubrication and cooling. In some embodiments, an oil gallery is provided on an outside surface of a back iron of the stator of the electric machine and orifices are provided in the back iron so that oil drips onto the coils of the electric motor. In some embodiments, the current commanded to the electric motor is based on whether or not lubricant (or other coolant) is being provided to the coils.
Public/Granted literature
- US20140056726A1 Cooling Stator Windings of an Electric Machine Public/Granted day:2014-02-27
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