US 2019/0101125 A1 · VENTILATION SYSTEM AND METHOD

Abstract

Embodiments of the invention provide a ventilation exhaust fan comprising a main housing adapted to interchangeably receive a upgrade cartridge assembly. The main housing can include a fluid inlet through which fluid is received within the main housing, and a fluid outlet through which fluid exits the main housing. The ventilation exhaust fan can be installed in a structure in place of an existing ventilation exhaust fan assembly. The main housing can provide support to a scroll and a blower wheel positioned within the scroll. A motor may be nestled within the scroll and coupled to the blower wheel. A capacitor including a motor harness and plug can be electrically coupled with the motor. Electrical power can be supplied to the capacitor and motor to cause the motor to rotate the blower wheel to generate a flow of fluid out of the fluid outlet.

Claims15

Dependent claims

An upgrade cartridge for a ventilation apparatus, the upgrade cartridge comprising:

a blower wheel capable of generating a fluid flow;
a scroll, the scroll comprising
an outermost peripheral wall defining a height of the scroll;
an intake wall extending inward from the peripheral wall over the top of the blower wheel to an intake periphery defining an intake aperture through which air enters the scroll;
a blower outlet defined in the scroll, the blower outlet defining a height, wherein the height of the scroll is greater than the height of the blower outlet and the scroll height transitions smoothly therebetween.

2 more elements

Dependencies are inferred from the claim text.

Ventilation system and method

Life of this patent

Ventilation system and method

Life of this patent

Abstract

Claims15