Invention Grant
- Patent Title: Method for determining air filter condition
- Patent Title (中): 确定空气过滤器状态的方法
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Application No.: US12921270Application Date: 2009-04-23
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Publication No.: US08573040B2Publication Date: 2013-11-05
- Inventor: Peter P. Guzman , John R. Reason , Nader S. Awwad , John T. Steele
- Applicant: Peter P. Guzman , John R. Reason , Nader S. Awwad , John T. Steele
- Applicant Address: US CT Farmington
- Assignee: Carrier Corporation
- Current Assignee: Carrier Corporation
- Current Assignee Address: US CT Farmington
- Agency: Cantor Colburn LLP
- International Application: PCT/US2009/041529 WO 20090423
- International Announcement: WO2009/132182 WO 20091029
- Main IPC: G01M15/04
- IPC: G01M15/04
Abstract:
A sensor that is designed for determining ambient pressure for purposes of derating an internal combustion engine at high altitudes, is used to determine the condition of the air filter by taking pressure measurements in the intake manifold before and after the engine is started, with the difference then being an indication of the condition of the air filter.
Public/Granted literature
- US20110094297A1 METHOD FOR DETERMINING AIR FILTER CONDITION Public/Granted day:2011-04-28
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