Invention Grant
- Patent Title: Methods and apparatus for detecting pump cavitation in a dishwasher using frequency analysis
- Patent Title (中): 使用频率分析在洗碗机中检测泵气蚀的方法和装置
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Application No.: US12861903Application Date: 2010-08-24
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Publication No.: US08277571B2Publication Date: 2012-10-02
- Inventor: Mark Anthony Didat
- Applicant: Mark Anthony Didat
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Global Patent Operation
- Agent Douglas D. Zhang
- Main IPC: B08B7/04
- IPC: B08B7/04 ; B08B9/20 ; B08B3/00
Abstract:
Water fill level detection techniques are provided for a dishwasher system. A dishwasher system includes a tub; a fluid circulation system for circulating water in the tub and a controller. The fluid circulation system includes at least one motor and at least one fill valve. The controller monitors a current drawn by the motor to control an operation of the fill valve. The controller performs a frequency analysis on the current to detect a water fill level in the tub.
Public/Granted literature
- US20120048302A1 METHODS AND APPARATUS FOR DETECTING PUMP CAVITATION IN A DISHWASHER USING FREQUENCY ANALYSIS Public/Granted day:2012-03-01
Information query
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