Portable, Low-Power Air Filtration System
AssigneeDesign West Technologies, Inc.
InventorsRyan Hur, Bob Olson, Jeffrey Kim, Gary Chen, Ramesh Palanisamy
Life of this patent
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Abstract
An air filtration system is described that is suited for CBRN and ColPro applications, and has an integrated inertial particle separator (IPS) and scavenge fan blower as a pre-dust/particle filter, a variable speed fan blower, and a filter housing that mounts two gas-particulate filter sets. The variable speed fan blower, managed by a motor control unit and motor speed algorithm, automatically adjusts its speed to maintain constant air flow regardless of its altitude.
Claims15
A fan blower for providing chemically and/or biologically filtered air, comprising:
- a blower enclosure having an air inlet, and air outlet, and an internal cavity;
- and,
- a fan assembly positioned within said internal cavity to move air from said air inlet out through said air outlet;
- said fan assembly comprising a mixed flow fan and a permanent magnet motor coupled to and driving rotation of said mixed flow fan.
A fan blower for providing chemically and/or biologically filtered air, comprising:
- a blower enclosure having an air inlet, and air outlet, and an internal cavity;
- a fan assembly positioned within said internal cavity to move air from said air inlet out through said air outlet;
- an inertial particle separator disposed adjacent to, and upstream of said fan assembly;
- and,
- a scavenge fan connected to said inertial particle separator so as to remove particles from an interior of said inertial particle separator and out through a scavenge fan exhaust port.
A fan blower for providing chemically and/or biologically filtered air, comprising:
- a blower enclosure having an air inlet, and air outlet, and an internal cavity;
- and,
- a fan assembly positioned within said internal cavity to move air from said air inlet out through said air outlet;
- and,
- a first chemical and biological detection sensor positioned near said air outlet of said blower enclosure and a microprocessor configured to monitor said first chemical and biological detection sensor for a detected substance and trigger an alert.
Dependencies are inferred from the claim text.