Hs R & a Co., Ltd.

Kwon Sik Hwang

Jae Hyeok Choi

Young Jun Kim

Deok Hyun Lim

Seung Hoon Sung

Jae Won Sim

Jun Young Bae

Ho Yeon Lee

A piping system including a pipe and a pipe block coupled to an end of the pipe. The pipe includes: a flange positioned at the end and protruding in a radially outward direction along an outer circumference of the pipe; and a coupling portion having a nipple that is inserted into the pipe block. The pipe block includes: an insertion hole into which the pipe is coupled; and a lip protruding from a surface in which the insertion hole is formed in a circumferential direction along an outer circumference of the insertion hole. An inner diameter of the lip is equal to or greater than an outer diameter of the flange, and when the pipe is coupled to the pipe block, the flange is positioned inside the lip and the lip is deformed in a radially inward direction of the pipe to grip and fix the pipe.

Piping system comprising pipe block

A piping system for an air conditioner that includes a refrigerant pipe that is formed of a plastic material and has a multi-layered pipe structure including an outer layer and an inner layer. The piping system provides a fluid flow between parts constituting the air conditioner system. A first flange formed of the plastic material and providing a connection between the refrigerant pipe and components constituting the air conditioner system. A second flange formed of the plastic material and connected to a charging valve for injecting a refrigerant into the refrigerant pipe.

Piping system for air conditioner

A plate-type heat exchanger including a body plate, an upper plate, and a lower plate. The body plate includes a plurality of alternately stacked plates, a space between the plurality of plates having a first heat exchange passage through which a first refrigerant of high temperature and high pressure flows, and a second heat exchange passage through which a second refrigerant of low temperature and low pressure flows. A heat exchange between the first refrigerant and the second refrigerant is performed in the body plate. The upper plate is bonded to a front side of the body plate and having a first inlet hole through which the first refrigerant is introduced and a first outlet hole through which the second refrigerant is discharged. The lower plate is bonded to a rear side of the body plate and having a second inlet hole through which the second refrigerant is introduced and a second outlet hole through which the first refrigerant is discharged.

Plate-type heat exchanger and air conditioning system for vehicle having the same

A brake hose comprising according to the disclosure may include: a tube-shaped inner rubber layer filled with a brake fluid; and a first reinforcing fiber layer, an intermediate rubber layer, a second reinforcing layer, and an outer rubber layer, which sequentially surround an outer circumferential surface of the inner rubber layer, wherein the first reinforcing fiber layer has a structure in which a plurality of layers of butyl rubber, which is a material having a high loss factor, are stacked on a PET fiber to improve vibration insulating performance, and various exemplary embodiments may be possible.

Growing community of inventors

Gyeongsangnam-do, South Korea

Kwon Sik Hwang