The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 15, 2019
Filed:
Jul. 10, 2014
Knr Systems Inc., Gyeonggi-do, KR;
Sung Moo Ryu, Gyeonggi-do, KR;
Seong Cheol Jang, Gyeonggi-do, KR;
Hyoung Kwon Kim, Gyeonggi-do, KR;
Young Ho Choo, Gyeonggi-do, KR;
Dae Gyeong Kim, Gyeonggi-do, KR;
KNR Systems, Inc., , KR;
Abstract
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.