Invention Grant
- Patent Title: Vacuum control via a compressor bypass valve in a twin-compressor engine system
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Application No.: US14937245Application Date: 2015-11-10
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Publication No.: US09879620B2Publication Date: 2018-01-30
- Inventor: Satheesh Makkapati , Dushyant Karthikeyan , Julia Helen Buckland , Eric Warren Curtis
- Applicant: Ford Global Technologies, LLC
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: McCoy Russell LLP
- Agent Julia Voutyras
- Main IPC: F02B37/04
- IPC: F02B37/04 ; F02D41/00 ; F02B33/44 ; F02B37/013 ; F02B37/10 ; F02B37/12 ; F02B37/16 ; F02B37/18 ; F02B39/04 ; F02B39/10

Abstract:
Methods and systems are provided for reducing vacuum at an outlet of an upstream first compressor when powering on a second compressor positioned downstream of the first compressor. In one example, a method may comprise, in response to a desired engine torque increasing above a threshold: powering on a second compressor positioned downstream of a first compressor in an intake of an engine system, and opening a compressor recirculation valve (CRV) positioned in a bypass passage coupled across the first compressor for a duration. As such, a portion of intake gasses from upstream of the first compressor may be routed to the second compressor.
Public/Granted literature
- US20170130658A1 VACUUM CONTROL VIA A COMPRESSOR BYPASS VALVE IN A TWIN-COMPRESSOR ENGINE SYSTEM Public/Granted day:2017-05-11
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