Invention Grant
- Patent Title: System and method for measuring and controlling dust ingress in a particulate matter sensor in an information handling system
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Application No.: US17153203Application Date: 2021-01-20
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Publication No.: US11991855B2Publication Date: 2024-05-21
- Inventor: James D. Trim , Jace W. Files , John T. Morrison , Sajjad Ahmed
- Applicant: DELL PRODUCTS, LP
- Applicant Address: US TX Round Rock
- Assignee: Dell Products L.P.
- Current Assignee: Dell Products L.P.
- Current Assignee Address: US TX Round Rock
- Agency: Larson Newman, LLP
- Main IPC: H05K7/20
- IPC: H05K7/20 ; H05K5/03

Abstract:
An information handling system includes a fan to cool a component of the information handling system, and a sensor device. The fan includes a first fan inlet, a second fan inlet, and a fan outlet. The fan is configured to draw air into the first and second fan inlets and to blow air out the fan outlet. The sensor device includes a sensor inlet, a sensor outlet, and a cover. The sensor is coupled to the fan with the first fan inlet collocated with the sensor outlet such that air drawn into the first fan inlet is first drawn through the sensor inlet. The cover is configured in a first position to cover the sensor inlet to permit no air flow through the sensor inlet and in a second position to uncover the sensor inlet to permit air to flow through the sensor inlet.
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