Lg Innotek Co., Ltd.

Doosan Engine Co., Ltd.

Korea Institute of Science and Technology

Sang Jin Kim

Chang Hee Lee

Jae Moon Lee

Min Cheol Park

Tae-Wook Kim

Sukang Bae

Dong Su Lee

Sang Hyun Lee

Dae Ho Choi

Gi Chang Moon

Kyung Ju Lee

Byung Joon Moon

Chang Seong Ryu

Ye Lin Oh

Gyun Lee

Dongheon Shin

Heon Pil Ha

Jin Ho Cheon

Jong Tae Choi

The present invention can provide a motor including a shaft, a rotor coupled to the shaft, and a stator disposed to correspond to the rotor, wherein the rotor includes a rotor core, a plurality of magnets coupled to the rotor core, and a magnet holder disposed outside the magnets, the rotor core includes protrusions disposed between the adjacent magnets, the magnet holder includes a first part disposed on a side surface of each of the magnets and a second part connected to the first part and disposed on one surface of the magnet, the second part includes holes, and a part of each of the protrusions and a part of the magnet are exposed through one of the holes.

Motor

A catalyst for selective catalytic reduction is described. Cerium (III) sulfate (cerous sulfate) is bound to a support. The catalyst also includes vanadium oxide and cerium oxide.

Catalyst for selective catalytic reduction and preparation method therefor

A reducing agent pyrolysis system for a selective catalytic reduction apparatus includes an elbow duct that is installed on an exhaust duct at a front end of a reactor, allows exhaust gas to flow into the elbow duct, and allows the inflow exhaust gas to be discharged toward the reactor. An inner pipe unit is disposed in the elbow duct, and allows a part of the exhaust gas to flow into and be discharged from the inner pipe unit. A heating device is installed in the inner pipe unit, and heats the exhaust gas flowing into the inner pipe unit. A nozzle is installed in the inner pipe unit, is disposed at a rear end of the heating device based on a flow of the exhaust gas, and injects a reducing agent into the inner pipe unit.

Reducing agent pyrolysis system for selective catalytic reduction apparatus

Provided are nitrogen-doped carbon quantum dots as pyrolysis product of fumaronitrile. The carbon quantum dots may be formed in such a manner that nitrogen may be doped in an amount of 3-10 wt % based on the total weight of the carbon quantum dots with no need for a separate doping process. As a result, the carbon quantum dots have excellent properties, such as optical property, electroconductivity and thermal safety, and thus may be useful for photocatalysts or organic solar cells, or the like.

N-doped nanocarbon materials and method for manufacturing the same

A selective catalytic reduction and catalytic regeneration system includes: a main exhaust flow path; a reactor which is installed on the main exhaust flow path; a bypass exhaust flow path which branches off from the main exhaust flow path, and bypasses the reactor; an ammonia injection unit, which injects ammonia to the exhaust gas which is to flow into the reactor; a hydrolysis chamber, which produces ammonia to be supplied to the ammonia injection unit; a branch flow path, which branches off from the main exhaust flow path at a front side of the reactor; a recirculation flow path, which branches off from the main exhaust flow path at a rear side of the reactor, and merges with the branch flow path; and a multifunctional flow path, which connects the hydrolysis chamber with a point where the branch flow path and the recirculation flow path merge together.

Selective catalytic reduction and catalytic regeneration system

A vibration device according to an embodiment of the present invention includes upper and lower cases combined with each other to form a case, a magnetic force generating unit provided on at least one surface of the upper and lower cases, a vibrating unit including at least one magnet disposed to be opposite to the magnetic force generating unit, and a weight, and at least one elastic unit configured to support the vibrating unit elastically, the elastic unit having a first portion directly contacting the upper case and a second portion contacting the vibrating unit. Further, the first portion is arranged on a first circumference and the second portion is arranged on a second circumference, and wherein a diameter of the first circumference is larger than a diameter of the second circumference.

Vibration device

Disclosed is a vibration device in which an elastic unit is formed on upper and/or lower surface of a weight, and the weight for generating vibration is extended in a circumferential direction. Also, a vibration device with a sound function, which gives an improved vibrating amount by making a larger magnetic force generating unit to be supported by elastic units, is also disclosed. Thus, the vibration device may be made in a smaller size, and therefore it enables miniaturization of a mobile communication terminal in which such vibration device is usually mounted.

Growing community of inventors

Gyeongsangnam-do, South Korea

Sang Jin Kim