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:
Mar. 15, 2016
Filed:
Dec. 26, 2011
Applicants:
Hyun Sik Lim, Incheon, KR;
Woo Yong Jung, Seoul, KR;
Inventors:
Hyun Sik Lim, Incheon, KR;
Woo Yong Jung, Seoul, KR;
Assignee:
Doosan Infracore Co., Ltd., Incheon, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F 9/22 (2006.01); F15B 20/00 (2006.01); E02F 9/26 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2292 (2013.01); E02F 9/226 (2013.01); E02F 9/2235 (2013.01); E02F 9/2242 (2013.01); E02F 9/2282 (2013.01); E02F 9/2296 (2013.01); E02F 9/268 (2013.01); F15B 20/002 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/3116 (2013.01); F15B 2211/8752 (2013.01);
Abstract
The present disclosure relates to a hydraulic system for a construction machine having an electronic hydraulic pump, and more particularly, to a hydraulic system which temporarily drives the construction machine when an operation of an electronic control unit controlling an electronic hydraulic pump is abnormal, particularly, when the electronic control unit is not able to perform a control because an operative amount of a joystick input to the electronic control unit is not normally transmitted to the electronic control unit.