Invention Grant
- Patent Title: Vacuum pressure impregnation method for insulation system
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Application No.: US17717630Application Date: 2022-04-11
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Publication No.: US12278531B2Publication Date: 2025-04-15
- Inventor: Jan de Swardt
- Applicant: The Timken Company
- Applicant Address: US OH North Canton
- Assignee: The Timken Company
- Current Assignee: The Timken Company
- Current Assignee Address: US OH North Canton
- Agency: Michael Best & Friedrich LLP
- Main IPC: H02K15/12
- IPC: H02K15/12 ; H02K15/10

Abstract:
A vacuum pressure impregnation process includes placing a room temperature coil/winding into a pressure vessel with a camera aimed at the coil/winding for inspection, and sealing the pressure vessel to draw a first vacuum level, maintained for a first duration. The coil/winding is flooded with resin and remotely monitored. A second vacuum level is maintained for a second duration while remotely monitoring. A first positive pressure level is applied for a third duration while remotely monitoring, before releasing and drawing a third vacuum level, maintained for a fourth duration while remotely monitoring. A second positive pressure level is applied for a fifth duration while remotely monitoring, before releasing pressure and removing the coil/winding from the pressure vessel.
Public/Granted literature
- US20220360153A1 VACUUM PRESSURE IMPREGNATION METHOD FOR INSULATION SYSTEM Public/Granted day:2022-11-10
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