Invention Grant
- Patent Title: Drawworks system with variable frequency drive
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Application No.: US15950140Application Date: 2018-04-10
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Publication No.: US10697254B2Publication Date: 2020-06-30
- Inventor: Michael Netecke , Vallie Hodges
- Applicant: Cameron International Corporation
- Applicant Address: US TX Houston
- Assignee: Cameron International Corporation
- Current Assignee: Cameron International Corporation
- Current Assignee Address: US TX Houston
- Agent Helene Raybaud
- Main IPC: E21B19/00
- IPC: E21B19/00 ; B66D1/12 ; B66D1/28 ; B66D1/14 ; H02K7/116 ; H02K9/16 ; H02K11/33 ; H02K5/20

Abstract:
A drawworks system for a mineral extraction system includes a drum mounted on a drum shaft and a motor assembly configured to drive rotation of the drum. The motor assembly includes a motor, a variable frequency drive positioned vertically above the motor relative to a skid, and a cooling assembly configured to cool the motor and the variable frequency drive. The cooling assembly is coupled to a housing of the variable frequency drive and is positioned vertically above a drive shaft of the motor relative to the skid.
Public/Granted literature
- US20190309584A1 Drawworks System with Variable Frequency Drive Public/Granted day:2019-10-10
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