Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Chungbuk National University Industry-academic Cooperation Foundation

Korea Sintered Metal Co., Ltd.

Shin Gyu Kim

Jae Woo Lee

Jae Ryung Lee

Kun Min Park

Ki Bum Kim

Young Min Kim

Hyung Suk Kim

Byung Soo Kim

Gun Goo Lee

Young Jin Seo

Hyung Ju Lee

Dongyeon Han

Sung Taeg Oh

Sung Kweon Jang

Hyun Gon Lyu

Myeong Kyu Jung

Hee-Sung Yoon

Hyung Seok Kwak

Joon Chul Yun

Ki Jung Kim

Jong Kwan Park

Sung Tae Choi

Eui Jun Kim

Chang-Seop Koh

Kwang-Young Jeong

Chan-Hyuk Park

Tae Gwan Heo

An electric water pump is configured to reduce an axial distance between a stator and a rotor. Since a separator of a stator casing is formed so as not to cover an upper surface of a stator, the axial thickness of the separator is reduced and the axial distance between the stator and the rotor is also reduced. The reduction in the axial distance allows a motor to have increased output and efficiency.

Electric water pump

A soft magnetic iron-based powder has a composite insulating film and a method for manufacturing the same and a method for manufacturing a soft magnetic composite are provided. The soft magnetic iron-based powder may include: an iron-based core powder formed in a powder form; a first layer formed on a surface of the iron-based core powder and coated with an inorganic material containing phosphate; a second layer formed on a surface of the first layer, in which sodium silicate, mica fine particle and bismuth (III) oxide fine particle are distributed; and a third layer formed on the surface of the first or second layer whose surface is exposed, in which an organic lubricant and an inorganic lubricant are distributed.

Soft magnetic iron-based powder, method for manufacturing the same, and method for manufacturing a soft magnetic composite

A field core unit for an electromagnetic clutch can include: a field coil generating a magnetic flux; a magnetic part provided with an annular-shaped insertion groove encompassing lower and side portions of the field coil such that the magnetic flux flows through the magnetic part; and a field core configured such that an upper surface thereof is open and an interior space is formed therein. The magnetic part can be inserted into the field core.

Field core unit for electromagnetic clutch

A NdFeB permanent magnet is provided and includes Nd of about 25 to 30 wt %, Dy of about 0.5 to 6 wt %, Tb of about 0.2 to 2 wt %, Cu of about 0.1 to 0.5 wt %, B of about 0.8 to 2 wt %, a balance of Fe and other inevitable impurities. In addition, a method for producing the permanent magnet is provided.

NdFeB permanent magnet and method for producing the same

A structure for measuring iron loss of a motor stator core is provided. The structure includes an auxiliary core whose both end surfaces in a longitudinal direction come in contact with inner end surfaces of two adjacent stator teeth among a plurality of stator teeth in a radial direction in order to measure iron loss of a stator core in which a plurality of slots and the plurality of stator teeth are alternately formed on an inner circumferential surface of a stator yoke in a circumferential direction. A pair of excitation windings is provided at portions of the auxiliary core in the longitudinal direction spaced-apart from each other. A B-coil that is a sensor coil is provided at the auxiliary core so as to be positioned inside any one excitation winding of the pair of excitation windings. Fixing protrusions protrude from the both end surfaces of the auxiliary core to extend in the longitudinal direction, and inserted into the slot between the two adjacent stator teeth to be fitted and fixed in the circumferential direction. Accordingly, it is possible to quantitatively and accurately measure iron loss of the motor stator core for each manufacturing process.

Structure of measuring iron loss of motor stator core

A core formed from powder, such as a stator core for use in a motor for a vehicle, wherein the core is formed from metallic powder and includes an outer part disposed at an inside of the motor, an inner part disposed at an inside of the motor, and a winding part which connects the outer part and the inner part and on which a wire is wound, and to a motor for a vehicle using the same. The winding part is formed to have rounded corners and a height lower than the height of the inner part, and a connection part is obliquely formed between the winding part and the inner part so that the winding part and the inner part are naturally connected.

Core formed from powder and motor for vehicle using the same

Disclosed herein is an engine valve seat, including: iron (Fe) as a main component; about 0.6&#x2dc;1.2 wt % of carbon (C); about 1.0&#x2dc;3.0 wt % of nickel (Ni); about 8.0&#x2dc;11.0 wt % of cobalt (Co); about 3.0&#x2dc;6.0 wt % of chromium (Cr); about 4.0&#x2dc;7.0 wt % of molybdenum (Mo); about 0.5&#x2dc;2.5 wt % of tungsten (W); about 1.0&#x2dc;3.0 wt % of manganese (Mn); about 0.2&#x2dc;1.0 wt % of calcium (Ca); and other inevitable impurities.

Engine valve seat and manufacturing method thereof

Growing community of inventors

Incheon, South Korea

Shin Gyu Kim