Invention Grant
- Patent Title: Variable tail pipe valve system
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Application No.: US15453275Application Date: 2017-03-08
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Publication No.: US10280824B2Publication Date: 2019-05-07
- Inventor: Glenn Pietila , John Pierce, III , Gerald J. Clark
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Agency: Cantor Colburn LLP
- Main IPC: F01N3/021
- IPC: F01N3/021 ; F01N9/00 ; F01N11/00 ; F01N13/08 ; F01N13/00
Abstract:
An exhaust system includes a particulate filter, a variable valve, and a controller communicatively connected to the variable valve. The controller is operative to determine a backpressure caused by the particulate filter in the exhaust system, and control a position of the variable valve as a function of the backpressure caused by the particulate filter.
Public/Granted literature
- US20180258825A1 VARIABLE TAIL PIPE VALVE SYSTEM Public/Granted day:2018-09-13
Information query
IPC分类:
