US 2019/0101296 A1Published application

Dual back suction type range hood

OwnerRong Fung HUANGinventor

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Abstract

A dual back suction type range hood includes a wind collecting case. An upper half part and a lower half part of a front surface of the wind collecting case have at least one horizontally extending elongated first air-extracting port and at least one horizontally extending elongated second air-extracting port, respectively. The first air-extracting port is parallel to the second air-extracting port, and the two are in communication with at least one air-extracting device. When the air-extracting device draws air, the total air flow passing through the second air-extracting port is greater than the total air flow passing through the first air-extracting port at a same time. As such, after the second air-extracting port draws most of airborne grease and fumes, the first air-extracting port extracts a very small amount of airborne grease and fumes flowing upwards, thus achieving complete fume exhaustion.

Claims10

Dependent claims

A dual back suction type range hood, comprising a wind collecting case, the wind collecting case connected to at least one air-extracting device, the wind collecting device having a front surface and a back surface opposite the front surface, an upper half part of the front surface of the wind collecting case having at least one horizontally extending elongated first air-extracting port, a lower half part of the front surface of the wind collecting case having at least one horizontally extending elongated second air-extracting port, the at least one first air-extracting port being parallel to the at least one second air-extracting port, the at least one first air-extracting port and the at least one second air-extracting port being in communication with the at least one air-extracting device;

wherein, when the at least one air-extracting device draws air, a total air flow passing through the at least one second air-extracting port is greater than a total air flow passing through the at least one first air-extracting port at a same time.

Dependencies are inferred from the claim text.