US 12,661,958 B2Granted

Hands-free cabin purification system for a vehicle

AssigneeFca US LLC

InventorsStephen J Eynon, Jason C Hedlund, Danja McGoff, Steven C Hall, Santiago Caceres, Martin Hofmann, Richard S Silbert, Mark D Osterbrink, Edward Rickettson

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Abstract

A cabin purification system for a vehicle includes an air inlet in communication with a fan, a light source emitting ultraviolet C light at a wavelength of from 100 nanometers to 280 nanometers, a photocatalytic oxidizer element, and an air outlet. The photocatalytic oxidizer element has a surface coating comprising anatase and rutile forms of TiO2. The surface coating is illuminated by the light source. The fan generates an air flow from outside the air inlet to the air outlet. The air flow passes the light source and the photocatalytic oxidizer where the surface coating converts H2O O3 and O2 in the air flow into H2O2 which is distributed into the vehicle cabin to purify it.

Claims20

Dependent claims

A cabin purifying system for a vehicle comprising:

an air intake in communication with a fan;
a first light emitting diode array, said first light emitting diode array emitting ultraviolet C light at a wavelength of from 100 nanometers (nm) to 280 nm;
a second light emitting diode array emitting ultraviolet A light at a wavelength of from 315 nm to 400 nm;
a first photocatalytic oxidizer element having a hydrophilic surface coating comprising anatase and rutile forms of TiO2 and wherein at least some of said surface coating is illuminated by said first light emitting diode array;
a second photocatalytic oxidizer element having a surface coating comprising anatase and rutile forms of TiO2, said surface coating of said second photocatalytic oxidizer illuminated by said second light emitting diode array;
an air outlet, wherein said fan is configured to generate an air flow from outside said air intake to said air outlet and wherein said surface coating of said first photocatalytic oxidizer element catalyzes the conversion of H2O, O3 and O2 in said air flow into H2O2.

3 more elements

A cabin purifying system for a vehicle comprising:

an air intake in communication with a fan;
multiple light emitting diode arrays, with at least one of said light emitting diode arrays emitting ultraviolet C light at a wavelength of from 100 nm to 280 nm and at least one of said light emitting diode arrays emitting ultraviolet A light at a wavelength of from 315 nm to 400 nm;
multiple photocatalytic oxidizer elements, each having a surface coating comprising TiO2, with said surface coating of at least one of said photocatalytic oxidizer elements illuminated by at least one of said light emitting diode arrays emitting ultraviolet C light at a wavelength of from 100 nm to 280 nm and with said surface coating of at least one of said photocatalytic oxidizer elements illuminated by at least one of said light emitting diode arrays emitting ultraviolet A light at a wavelength of from 315 nm to 400 nm;
an air outlet;
and
a control module, said control module controlling said fan and each of said light emitting diode arrays, wherein said fan is configured to generate an air flow into and through said air intake to and through said air outlet and wherein said surface coating illuminated by ultraviolet C light catalyzes the conversion of H2O, O3 and O2 in said air flow into H2O2 and wherein said surface coating illuminated by ultraviolet A light catalyzes the oxidation of volatile organic compounds in said air flow.

3 more elements

Dependencies are inferred from the claim text.