Invention Grant
- Patent Title: Compressor heating system
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Application No.: US14822541Application Date: 2015-08-10
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Publication No.: US10295236B2Publication Date: 2019-05-21
- Inventor: Chuan Yan , Don Schuster , Drew Whitehurst
- Applicant: Trane International Inc.
- Applicant Address: US NJ Piscataway
- Assignee: Trane International Inc.
- Current Assignee: Trane International Inc.
- Current Assignee Address: US NJ Piscataway
- Agency: Conley Rose, P.C.
- Agent J. Robert Brown, Jr.
- Main IPC: F25B49/00
- IPC: F25B49/00

Abstract:
A compressor heating system includes a compressor drive controller electrically coupled to an outdoor controller configured to selectively implement a pulse width modulation algorithm to deliver a pulsed direct current (DC) from the compressor drive controller to at least one stator winding of a motor of a variable speed compressor to provide heat to the compressor to prevent refrigerant migration to the compressor when the compressor remains idle with respect to operating in a cooling or heating mode.
Public/Granted literature
- US20160047579A1 Increased Efficiency of Crank Case Heating Using Pulsed Stator Heat Public/Granted day:2016-02-18
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