Hanon Systems

Hyundai Motor Company

Kia Corporation

Korea Research Institute of Chemical Technology

Jeong Jae Lee

Seong Seok Han

Hyung Joo Kim

Jong Su Kim

Heon Hur

Beom Ki Kim

Hun Sang Lee

Ji Hoon Park

Pyung Soon Kim

Jin Woo Choung

Sung Ho Kang

Jihui Seo

Soo Min Kim

Jung Won Cho

Yongwoo Kim

Jaeyong Lee

Jeong Eun Lee

Kwanyong Jeong

Provided is a method for synthesizing bipyridine that includes performing a dimerization reaction of a reactant including a piperidine-based compound, a pyridine-based compound, or a mixture thereof in the presence of a catalyst in which an active metal is supported on a composite metal oxide support including silica (SiO) and alumina (AlO).

Method for preparing bipyridine

A vehicle air conditioner is disclosed. The present invention provides the vehicle air conditioner, which: can directly control the amount of air passing through an evaporator and a heater core since a blower is disposed between the evaporator and the heater core; has front and rear seat discharge units respectively having heater cores, thereby having a simple form, minimizing energy consumption, and independently enabling four or more zones, including front and rear seats, the left and right of the front seats, and the left and right of the rear seats, to be air-conditioned; and can discharge an offensive smell to the outside during initial driving of a vehicle since the air outside a vehicle, flowing in from an air inlet, and indoor air flowing in from an inside air suction port, disposed at the center of the vehicle, are discharged to the outside of the vehicle by means of a second blower, and not by a front seat blower, for discharging the air to the rear seats.

Vehicle air conditioner

The present invention relates to an air conditioner for a vehicle, which includes an air-conditioning case (), and at least one door () mounted to be opened and closed at a predetermined position, wherein the door () is formed integrally with an arm pivot (), and the arm pivot () includes a pin part, and ribs formed integrally with both sides of the pin part to reinforce rigidity of the pin part and offset noise. The air conditioner further includes distortion preventing parts formed on a rotary shaft to be dented and to be crossed to each other, thereby reducing a transformation rate of the door and securing accuracy of the pin part.

Air conditioner for vehicle

Growing community of inventors

Daejeon, South Korea

Jeong Jae Lee