Invention Grant
- Patent Title: System and method for reducing vane sticking in a variable geometry turbocharger
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Application No.: US14192759Application Date: 2014-02-27
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Publication No.: US09322326B2Publication Date: 2016-04-26
- Inventor: Thomas Jeremy Kostrzewski
- 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: Alleman Hall McCoy Russell & Tuttle LLP
- Agent Julia Voutyras
- Main IPC: F02B37/18
- IPC: F02B37/18 ; F02B37/24 ; F02M25/07 ; F02D41/00 ; F02D41/10 ; F02D41/12 ; F02D41/22 ; F02D11/10 ; F02B29/04

Abstract:
A method for operating an engine system is described herein. The method includes moving a plurality of vanes in a variable geometry turbocharger toward a closed position in response to tip-out and after moving the plurality of vanes toward the closed position, moving an EGR valve from a fully closed position toward an open position in response to tip-in, the EGR valve in fluidic communication with an exhaust sub-system upstream of the turbine. The method further includes, after moving the EGR valve toward an open position, moving the plurality of vanes based on one or more of a driver-requested torque, engine speed, and engine temperature.
Public/Granted literature
- US20150240708A1 SYSTEM AND METHOD FOR REDUCING VANE STICKING IN A VARIABLE GEOMETRY TURBOCHARGER Public/Granted day:2015-08-27
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