Patents by Inventor Jin Young TAK

Jin Young TAK 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).

  • Flow rate control apparatus of construction equipment and control method therefor
    Patent number: 10428491
    Abstract: A flow rate control apparatus for construction equipment includes: a boom cylinder driven by hydraulic fluid; a first control valve for controlling a hydraulic fluid flow supplied to the boom cylinder; an option actuator driven by hydraulic fluid; a second control valve for controlling a hydraulic fluid flow supplied to the option actuator; a boom cylinder manipulation lever and an option actuator manipulation lever; a confluence line selectively confluence the hydraulic fluid supplied to the boom cylinder with the hydraulic fluid of the option actuator; a center bypass switching valve provided at the furthest downstream side of a fluid supply path of the first hydraulic pump; a confluence switching valve selectively opening and closing the confluence line; a confluence selection valve applying a pilot pressure to the confluence switching valve; and a controller for controlling the confluence selection valve.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: October 1, 2019
    Assignee: Volvo Construction Equipment AB
    Inventors: Hea-Gyoon Joung, Jin-Young Tak
  • FLOW RATE CONTROL APPARATUS OF CONSTRUCTION EQUIPMENT AND CONTROL METHOD THEREFOR
    Publication number: 20180073217
    Abstract: A flow rate control apparatus for construction equipment includes: a boom cylinder driven by hydraulic fluid; a first control valve for controlling a hydraulic fluid flow supplied to the boom cylinder; an option actuator driven by hydraulic fluid; a second control valve for controlling a hydraulic fluid flow supplied to the option actuator; a boom cylinder manipulation lever and an option actuator manipulation lever; a confluence line selectively confluence the hydraulic fluid supplied to the boom cylinder with the hydraulic fluid of the option actuator; a center bypass switching valve provided at the furthest downstream side of a fluid supply path of the first hydraulic pump; a confluence switching valve selectively opening and closing the confluence line; a confluence selection valve applying a pilot pressure to the confluence switching valve; and a controller for controlling the confluence selection valve.
    Type: Application
    Filed: April 29, 2015
    Publication date: March 15, 2018
    Applicant: VOLVO CONSTRUCTION EQUIMENT AB
    Inventors: Hea-Gyoon JOUNG, Jin Young TAK