Invention Grant
- Patent Title: Motor current based air circuit obstruction detection
- Patent Title (中): 基于电机电流的空气回路阻塞检测
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Application No.: US12336910Application Date: 2008-12-17
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Publication No.: US08125230B2Publication Date: 2012-02-28
- Inventor: Raj Mohan Bharadwaj , David Lazarovich
- Applicant: Raj Mohan Bharadwaj , David Lazarovich
- Applicant Address: US NJ Morristown
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morristown
- Agency: Ingrassia Fisher & Lorenz, P.C.
- Main IPC: G01R31/28
- IPC: G01R31/28

Abstract:
A method for determining an obstruction in an air circuit, the air circuit having a fan and a motor that drives the fan, includes the steps of obtaining a load current of a motor coupled to the air circuit, comparing the load current to a predetermined value, and determining the obstruction using the load current and the predetermined value.
Public/Granted literature
- US20100148748A1 MOTOR CURRENT BASED AIR CIRCUIT OBSTRUCTION DETECTION Public/Granted day:2010-06-17
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