Invention Grant
- Patent Title: Exhaust valve assembly with intermediate position
- Patent Title (中): 具有中间位置的排气阀组件
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Application No.: US11602675Application Date: 2006-11-21
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Publication No.: US08683789B2Publication Date: 2014-04-01
- Inventor: Robin Willats , Joseph Callahan , Kwin Abram
- Applicant: Robin Willats , Joseph Callahan , Kwin Abram
- Applicant Address: US IN Columbus
- Assignee: Faurecia Emissions Control Technologies
- Current Assignee: Faurecia Emissions Control Technologies
- Current Assignee Address: US IN Columbus
- Agent Pamela A. Kachur
- Main IPC: F01N1/00
- IPC: F01N1/00

Abstract:
An exhaust valve assembly includes a flapper valve that is mounted on a shaft for rotation within an exhaust component housing between a closed position, an intermediate position, and an open position. An electric actuator is coupled to the shaft to control movement of the flapper valve. The electric actuator moves the flapper valve to the open position for high speed engine conditions. When engine speeds are lowered, and while all engine cylinders remain active, the electric actuator moves the flapper valve to the intermediate position. Once the flapper valve is in the intermediate position, if an engine cylinder is subsequently deactivated, the electric actuator quickly and quietly moves the flapper valve from the intermediate position to the closed position.
Public/Granted literature
- US20080115748A1 Exhaust valve assembly with intermediate position Public/Granted day:2008-05-22
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