Patents by Inventor Dong Yo RYU

Dong Yo RYU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8833728
    Abstract: Disclosed is a solenoid valve for a brake system which improves an assembly structure of components configuring the valve to enhance durability and control performance of the valve. The solenoid valve for a brake system includes a seat housing installed at a bore of a modulator block and provided with a through hole formed therethrough, a valve seat installed at the through hole of the seat housing and provided with an orifice, a sleeve provided with a hollow and connected to the seat housing, a magnetic core, an armature installed at the sleeve, and a return spring installed in the sleeve, wherein the armature includes an upper armature formed of a magnetic material, and a lower armature formed of a non-magnetic material, wherein the through hole of the seat housing is provided with a guide region having a diameter corresponding to an outer diameter of the lower armature.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: September 16, 2014
    Assignee: Mando Corporation
    Inventors: Hyun Jun Kim, I Jin Yang, Yong Kap Kim, Dong Yo Ryu, Jong Young Park
  • Publication number: 20130299288
    Abstract: Disclosed herein is an electronic disc brake. The electronic disc brake includes a carrier on which a pair of pad plates are mounted, a caliper housing, which is slidably installed on the carrier and is provided with a cylinder having a piston mounted therein, a pressure device installed within the cylinder, the pressure device converting rotational motion into rectilinear motion to press and release the piston, the pressure device having an output key which protrudes by penetrating a rear wall of the caliper housing, a motor mounted on an outer surface of the caliper housing to generate drive force, a reducer coupled with a rotary shaft of the motor to amplify the drive force, and a coupling interposed between the reducer and the pressure device to transmit the amplified drive force to the pressure device, wherein the motor, the reducer, and the pressure device are coaxially connected in series.
    Type: Application
    Filed: May 10, 2013
    Publication date: November 14, 2013
    Inventors: Dong Yo Ryu, I Jin Yang, Seong Ho Choi, Jong Gu Son
  • Patent number: 8474488
    Abstract: A low pressure accumulator for an anti-lock brake system of a vehicle. The low pressure accumulator includes a cylinder having one end communicated with a fluid path connected to a valve and a pump and an opposite end formed with an opening, a piston moving back and forth in the cylinder, a spring installed in the cylinder to elastically support the piston, and a plug installed in the opening of the cylinder to support one end of the spring. The plug includes a vent to ventilate air through an inside and an outside of the cylinder.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: July 2, 2013
    Assignee: Mando Corporation
    Inventors: Dong Yo Ryu, Min Geun Song
  • Publication number: 20130015626
    Abstract: Disclosed herein is a sealing structure for an integrated hydraulic control system to integrate a first hydraulic control system to control brake hydraulic pressure, the first hydraulic control system having a modulator block, in which the hydraulic pressure line to supply brake hydraulic pressure to wheel cylinders of a vehicle is formed, and a second hydraulic control system connected to the first hydraulic control system, wherein the first and second hydraulic control systems are coupled to each other each other in a surface contact fashion such that the hydraulic pressure line formed in the modulator block of the first hydraulic control system communicates with a hydraulic pressure line formed in a modulator block of the second hydraulic control system to form at least one through channel, and a hollow channel connection seal to block leakage of the brake hydraulic pressure outside is provided in the through channel.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 17, 2013
    Inventors: Yong Kap Kim, Dong Yo Ryu
  • Publication number: 20120199772
    Abstract: Disclosed herein is a solenoid valve for brake systems which improves an assembly structure of components constituting the valve to enhance durability and control performance of the valve. The solenoid valve includes a sheet housing, a valve sheet, a sleeve, a magnetic core and an armature, the armature includes an upper body and a lower body separated from each other, the upper body is formed of a magnetic material and has an external diameter corresponding to the internal diameter of the sleeve so as to be guided and moved forward and backward within the sleeve, the lower body is formed of a non-magnetic material, is provided with an opening and closing part to open and close an orifice of the valve sheet, and elastic members to press the upper body and the lower body in the facing directions to move the upper body and the lower body together are provided.
    Type: Application
    Filed: February 1, 2012
    Publication date: August 9, 2012
    Inventors: Yong Kap Kim, I Jin Yang, Hyun Jun Kim, Dong Yo Ryu, Jong Young Park
  • Publication number: 20110277863
    Abstract: Disclosed is a low pressure accumulator for an anti-lock brake system of a vehicle. The low pressure accumulator includes a cylinder having one end communicated with a fluid path connected to a valve and a pump and an opposite end formed with an opening, a piston moving back and forth in the cylinder, a spring installed in the cylinder to elastically support the piston, and a plug installed in the opening of the cylinder to support one end of the spring. The plug includes a vent to ventilate air through an inside and an outside of the cylinder.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 17, 2011
    Inventors: Dong Yo RYU, Min Geun Song