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:
Aug. 06, 2024
Filed:
Feb. 26, 2021
Applicant:
Hd Hyundai Infracore Co., Ltd., Incheon, KR;
Inventor:
Byungil Kang, Incheon, KR;
Assignee:
HD HYUNDAI INFRACORE CO., LTD., Incheon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/22 (2006.01); F15B 1/02 (2006.01); F15B 11/17 (2006.01); F15B 21/14 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2221 (2013.01); E02F 9/2217 (2013.01); E02F 9/2242 (2013.01); E02F 9/2267 (2013.01); E02F 9/2289 (2013.01); E02F 9/2292 (2013.01); E02F 9/2296 (2013.01); F15B 1/024 (2013.01); F15B 11/17 (2013.01); F15B 21/14 (2013.01); F15B 2211/20523 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/20561 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/7135 (2013.01); F15B 2211/7142 (2013.01); F15B 2211/88 (2013.01);
Abstract
Provided is a construction machine. The construction machine includes a boom cylinder driving a boom, a rotation motor rotating a rotary body, an arm cylinder driving an arm, a bucket cylinder driving a bucket, a first main pump supplying working fluid to the boom cylinder and discharging the working fluid in opposite directions, a second main pump supplying working fluid to the rotation motor and discharging the working fluid in opposite directions, and a third main pump supplying working fluid to the arm cylinder or the bucket cylinder.