Gas sampling device with improved mixed flow fan

Details Gas sampling device with improved mixed flow fan Gas sampling device with improved mixed flow fan

G - Physics

01

N

G01N 1/22 (2006.01) F04D 17/16 (2006.01) G01N 1/24 (2006.01) G01N 33/00 (2006.01)

Patent

CA 2050685

2050685 9112512 PCTABS00006 A gas sampling device (2) including a chamber assembly formed of a chamber base (42) having a chamber top (44) mounted thereto is disclosed. A gas sensor (38) is mounted to the chamber base in fluid communication with a gas flow passage (50) therethrough. A motor (34) is mounted to the lower surface of the chamber base and has a shaft (48) extending through the chamber base. A fan (46) is mounted onto the motor shaft within the chamber housing. An inlet flow passage (16) extends through the chamber top above the center of the fan and an outlet flow passage (18) extends through the chamber top above the gas flow passage. The fan and the chamber top are provided with a particular configuration to provide for efficient and smooth flows of gas through the housing and to the sensor.

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