Koninklijke Philips Corporation N.v.

Weizhong Chen

Declan Patrick Kelly

Ming Sun

Cornelis Reinder Ronda

Paul Van Der Sluis

Jan Frederik Suijver

Bin Yin

Johan Marra

Jun Shi

Shuang Chen

Wei Li

Jing Su

John Robert McGarva

Jean-Paul Jacobs

Peter Hermanus Bouma

Wei Gu

Xiaoxin Wang

Ruben Arnold Herman Reekers

Xuan Zhang

Qiushi Zhang

Haihui Wu

Wei Su

Tao Kong

Xueming Cao

John Robert Mcgarva

Peng Zhang

Wen Pan

An apparatus, system and method for controlling airflow is described. The apparatus comprises a wall which delimits a flared bore. The apparatus further comprises at least one air guide member which retractably protrudes into the flared bore from the wall. The flared bore widens to an outlet, thereby to permit a diverging airflow to be expelled therefrom when each of the at least one air guide member is retracted. When the at least one air guide member protrudes into the flared bore, air flowing in the flared bore is guided by a surface, e.g. a concave surface, of the respective air guide member away from the wall and towards the outlet. The retractable air guide member thus enables the direction and/or degree of convergence of the air flowing out of the outlet to be controlled.

Apparatus, system and method for controlling airflow

Methods and apparatus for determining levels of gaseous elements and optionally utilizing the determined levels to calibrate one or more sensors of an air purifier. For example, in some implementations a first image is captured of a colorimetric sensor device at the start of a sensing period and a second image is captured of the colorimetric sensor device at the end of the sensing period. The colorimetric sensor device includes at least one colorimetric sensor configured to change colors in response to reaction with a gaseous pollutant. Values may be determined based on the colors of the colorimetric sensor in the first and second images and the values may be utilized to determine a pollution value indicative of the amount of the gaseous pollutant to which the colorimetric sensor was exposed during the sensing period.

Measurements and calibration utilizing colorimetric sensors

The present invention relates to a method and a device for performing PCO reaction. The method comprises steps of: guiding an air flow into a PCO reactor, which PCO reactor contains photocatalyst for the PCO reaction; splitting the air flow into a first stream and a second stream, wherein quantity of the first stream being less than quantity of the second stream; obtaining the humidity of the photocatalyst; controlling the humidity of the first stream according to the obtained humidity of the photocatalyst; adjusting the humidity of the photocatalyst by guiding the first stream to the photocatalyst; guiding the second stream through the photocatalyst; and illuminating the photocatalyst with light. By controlling the humidity of air passing through the photocatalyst oxidation based on the obtained humidity of the photocatalyst, PCO reaction can be performed effectively.

Method and device for performing PCO reaction and air purifier comprising the device

A filter element () for use in a gas purification device () is disclosed. It comprises a substrate () and a filter layer () covering an exterior surface of the substrate (). The substrate () comprises material for containing chemicals () effective to remove gas pollutants from a gas. The material of the filter layer () is hydrophilic to adsorb liquid solution adsorbents effective in removing gas pollutants from a gas, and the exterior surface of the substrate () covered by the filter layer () is hydrophobic.

Filter element and gas purification device comprising a filter element

The present application relates to an apparatus for purifying and/or humidifying air, and a related method for purifying and/or humidifying air. The apparatus comprises a rotary filter (), a fan () for passing air through the rotary filter (), and a reservoir (), and wherein the rotation speed of the rotary filter () and the settings of the fan () depend on the ambient relative humidity and ambient gas pollutant concentration. The apparatus combines the feature of chemisorption with the use of a rotary filter (), thereby providing an apparatus which is able to purify air and/or regulate the ambient humidity based on humidity levels and levels of a target gas pollutant in the air. The invention removes the need for a pump for liquid transport, removes the need for frequent and expensive filter changes by the user, and instead only requires the user to periodically refresh the filtration solution in the reservoir ().

Air humidification and/or purification

The invention provides an air purifier () comprising a catalytic converter (), the catalytic converter () comprising (i) a catalytically active material () and (ii) a heatable material () in thermal contact with said catalytically active material (), wherein the heatable material () is heatable by one or more of an alternating electrical field and an alternating magnetic field, the air purifier () further comprising a field generator (), configured free from electrical contact with the heatable material () and configured to heat during operation of the air purifier () the heatable material () by one or more of the alternating electrical field and the alternating magnetic field.

Type of thermal catalytic oxidation material for air purification and apparatus therefore

A device and a method of sensing characteristics of a food material and a machine and a method of brewing coffee. The device comprises: a wave source () configured for emitting waves to said food material (), with the wavelength range of said waves comprising a selected near infrared band neighboring a visible band; a detector (), configured for detecting intensities of the waves reflected by said food material; and an analysis module (), configured for determining said characteristics according to the detected intensity of the reflected waves. Preferably, the food material comprises coffee powder, and the characteristics comprise at least any one of: color of the coffee powder (corresponding to the roasting degree of coffee powder); and grind fineness of the coffee powder.

Device and a method of sensing characteristics of a food material and a machine and a method of brewing coffee having a wave source with wavelength range comprising visible band and near infrared band

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Eindhoven, Netherlands

Weizhong Chen