Knr Systems Inc.

Postech Academy-industry Foundation

Sung Moo Ryu

Jeong Whan Moon

Ki Tak Ahn

Min Gyu Kim

Wan Kyun Chung

Hyouk Ryeol Choi

Ja Choon Koo

Gyu Young Lee

Seong Cheol Jang

Young Ho Choo

Dae Gyeong Kim

Hyoung Kwon Kim

Jung Yeol Kim

Hydraulic rotary actuator disposes entry and exit lines of the hydraulic fluid within the hydraulic rotary actuator and comprises a floating member with a hollow portion, a rotating member configured to be inserted into the hollow portion, a working fluid supplied to said hollow portion, a servo control valve connected to said floating member configured to control the flow rate, an entry line connected to said servo control valve and further connecting said servo control valve to said floating member, said entry line forming a through-hole that penetrates through said floating member and forming a supply passage for said working fluid, an exit line connecting said hollow portion to said servo control valve and further thereon to outside of floating member, said exit line forming a through-hole that penetrates through said floating member and forming a discharge passage for said working fluid.

Robot arm having hydraulic rotary actuators

A flow generator includes pumps operated by motors to generate an amount of a hydraulic fluid, a proportional hydraulic control valve to control output hydraulic pressure according to the amount of the hydraulic fluid, a pressure sensor to detect the output hydraulic pressure, and a hydraulic servo loop controller to which a required hydraulic pressure and a required amount of fluid are input by a user. Based on a feedback signal representing the output hydraulic pressure, the controller generates a pressure control signal for controlling the proportional hydraulic control valve based on the required hydraulic pressure and a change in the output hydraulic pressure. It also generates an RPM input signal for controlling a motor's RPM.

Mobile hydraulic generator and control method thereof

In the integrated hydraulic rotary actuator according to the present invention, a valve, a sensor, a controller, and a driving unit for controlling the rotary actuator are integrated, so wires connecting them are not exposed to the outside. Accordingly, it is possible to prevent damage due to interference in operation and maintenance is easy. Further, since it is integrated, including a controller, when the actuator according to the present invention is used, connecting with other parts is easy and interference can be reduced. Therefore, it is easy to design and manufacture a resultant product.

Integrated hydraulic rotary actuator

Hydraulic rotary actuator

A clinical test apparatus employing a mobile robot is provided. The clinical test apparatus includes a stage unit, a test station provided in the stage unit and configured to perform a clinical test, a mobile robot configured to move on a top surface of the stage unit and to transfer a plate on which samples and reagents are loaded to the test station, and a docking unit disposed in the stage unit and configured to reset a position of the mobile robot. A variety of test stations for a clinical test can be integrated, and multiple tests can be performed at the same time through a plurality of mobile robots.

Mobile robot and clinical test apparatus using the same

Growing community of inventors

Gyeonggi-do, South Korea

Sung Moo Ryu