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: 9776604Abstract: An integrated brake device for a vehicle according to an embodiment of the present invention includes a master cylinder that generates a hydraulic pressure based on the operation of a pedal, a pedal simulator that provides a pedal stepping force to the pedal based on the hydraulic pressure, a motor that is driven based on displacement of the pedal, a pump that applies a braking pressure to wheels of the vehicle based on the driving of the motor, and a gear unit that converts rotational power of the motor into a linear motion of a piston included in the pump, wherein a rotating shaft of the motor is parallel to a direction of the linear motion of the piston.Type: GrantFiled: December 28, 2015Date of Patent: October 3, 2017Assignee: MANDO CORPORATIONInventors: Chanhui Lee, Dong Yo Ryu
-
Patent number: 9387836Abstract: Disclosed herein is a variable pedal feeling adjustment device. A pedal simulator includes a simulator block formed with an oil hole at an upper portion thereof which is connected to a master cylinder to receive hydraulic pressure caused by pedal effort of a driver and a bore which communicates with the oil hole, a first reaction unit and a second reaction unit arranged in series in the bore and configured to be pressurized sequentially by pedal effort, and a damping housing configured to support the second reaction unit and installed to a lower portion of the bore while being restricted in rotation. An actuator includes a spindle screw-coupled to the damping housing and a motor connected to the spindle to supply rotational force to the spindle. The damping housing is moved linearly and changed in position by forward and backward rotation of the spindle.Type: GrantFiled: June 10, 2014Date of Patent: July 12, 2016Assignee: MANDO CORPORATIONInventors: Dong Yo Ryu, Jong-Gu Son
-
Publication number: 20160185330Abstract: An integrated brake device for a vehicle according to an embodiment of the present invention includes a master cylinder that generates a hydraulic pressure based on the operation of a pedal, a pedal simulator that provides a pedal stepping force to the pedal based on the hydraulic pressure, a motor that is driven based on displacement of the pedal, a pump that applies a braking pressure to wheels of the vehicle based on the driving of the motor, and a gear unit that converts rotational power of the motor into a linear motion of a piston included in the pump, wherein a rotating shaft of the motor is parallel to a direction of the linear motion of the piston.Type: ApplicationFiled: December 28, 2015Publication date: June 30, 2016Applicant: MANDO CORPORATIONInventors: Chanhui LEE, Dong Yo RYU
-
Publication number: 20140361473Abstract: Disclosed herein is a variable pedal feeling adjustment device. A pedal simulator includes a simulator block formed with an oil hole at an upper portion thereof which is connected to a master cylinder to receive hydraulic pressure caused by pedal effort of a driver and a bore which communicates with the oil hole, a first reaction unit and a second reaction unit arranged in series in the bore and configured to be pressurized sequentially by pedal effort, and a damping housing configured to support the second reaction unit and installed to a lower portion of the bore while being restricted in rotation. An actuator includes a spindle screw-coupled to the damping housing and a motor connected to the spindle to supply rotational force to the spindle. The damping housing is moved linearly and changed in position by forward and backward rotation of the spindle.Type: ApplicationFiled: June 10, 2014Publication date: December 11, 2014Inventors: Dong Yo RYU, Jong-Gu Son
-
Patent number: 8833728Abstract: 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: GrantFiled: November 2, 2012Date of Patent: September 16, 2014Assignee: Mando CorporationInventors: Hyun Jun Kim, I Jin Yang, Yong Kap Kim, Dong Yo Ryu, Jong Young Park
-
Publication number: 20130299288Abstract: 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: ApplicationFiled: May 10, 2013Publication date: November 14, 2013Inventors: Dong Yo Ryu, I Jin Yang, Seong Ho Choi, Jong Gu Son
-
Patent number: 8474488Abstract: 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: GrantFiled: May 13, 2011Date of Patent: July 2, 2013Assignee: Mando CorporationInventors: Dong Yo Ryu, Min Geun Song
-
Publication number: 20130015626Abstract: 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: ApplicationFiled: July 12, 2012Publication date: January 17, 2013Inventors: Yong Kap Kim, Dong Yo Ryu
-
Publication number: 20120199772Abstract: 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: ApplicationFiled: February 1, 2012Publication date: August 9, 2012Inventors: Yong Kap Kim, I Jin Yang, Hyun Jun Kim, Dong Yo Ryu, Jong Young Park
-
Publication number: 20110277863Abstract: 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: ApplicationFiled: May 13, 2011Publication date: November 17, 2011Inventors: Dong Yo RYU, Min Geun Song