Hyundai Motor Company

Coway Co., Ltd

Kia Motors Corporation

Woongjin Coway Co., Ltd

Young-Gun Cho

Jung-Hwan Lee

Sang-Woo Kang

In-Seok Seo

Jong-Wan Kim

Byung-Il Kang

Seong-Jin Yun

Do-Han Kim

Byung-Kil Park

Ju-Hyun Baek

Chul-Soon Dan

Seung-Hak Lee

Yu-Seung Choi

Young-Ju Seo

An air purifier according to the present disclosure includes: a memory for storing a flow rate/pressure differential correlation graph with regard to each filter utilization state; a pressure differential sensor for measuring a pressure differential, which is a difference in pressure between the front and rear ends of the filter; and a filter replacement time management unit for determining the time to replace the filter according to a result of matching a pressure differential of the filter, which is measured by the pressure differential sensor at a preset cycle, and the flow rate of air flowing into the filter during pressure differential measurement with the flow rate/pressure differential correlation graph for each utilization state.

Air purifier, method for determining time to replace filter thereof, and device and method for determining filter replacement time pressure differential therefor

There are provided an apparatus for water treatment using capacitive deionization and a method for controlling the same. The apparatus for water treatment using capacitive deionization includes a first filter unit and a second filter unit allowing dissolved solids included in an introduced fluid to be adsorbed on electrodes to generate purified water when a water purification voltage is applied to the electrodes, and allowing the dissolved solids adsorbed on the electrodes to be desorbed to generate regenerated water when a regeneration voltage is applied to the electrodes, respectively, and a controller iteratively alternatively applying the water purification voltage and the regeneration voltage to the first filter unit and the second filter unit to generate purified water having a pre-set target total dissolved solids (TDS) value.

Apparatus for water treatment using capacitive deionization and method for controlling the same

A modularized structure of a fuel device and a rear suspension mounted on a floor panel of a vehicle that uses hydrogen or electricity as fuel, may include a cross member that is coupled to the fuel device and is disposed in a vehicle width direction, both ends thereof being connected to support a wheel hub, respectively, wherein the cross member is mounted to the floor panel in a state of being fastened to the fuel device in advance.

Modularized structure of fuel device and rear suspension

A support block at a trailing arm and a stabilizer link that varies in contact state to the support block form a large toe-in during out-of phase movement of both wheels and form a small toe-in during in-phase movement of the wheels, thereby embodying an appropriate toe-in displacement according to the vehicle turn and forward motion, thus improving the vehicle driving characteristics.

Variable toe rear suspension

The present device relates to a headrest assembly for protecting the neck of a vehicle seat occupant by preventing sudden movement of a head upon rear end collisions, and more particularly, to a headrest assembly for protecting the neck of a vehicle seat occupant, comprising the first actuating rod pivotally connected to the upper cross member of a seatback frame and rotatably installed inside the seatback, which moves the headrest forward upon rear end collisions in order to limit the backward movement of the head of a vehicle seat occupant, and the second actuating rod pivotally connected to the lower cross member of a seatback frame under the first actuating rod, wherein said actuating rods are linked by means of a sliding assembly.

Headrest assembly for protecting the neck of a vehicle seat occupant

Growing community of inventors

Seoul, South Korea

Young-Gun Cho