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:
Sep. 15, 2026
Filed:
Jul. 14, 2023
Hd Construction Equipment Co., Ltd., Seongnam-si, KR;
Taeyoon Kim, Seoul, KR;
Wooyong Jung, Seoul, KR;
Kiyong Kim, Seoul, KR;
Heehwan Park, Anyang-si, KR;
HD CONSTRUCTION EQUIPMENT CO., LTD., Seongnam-si, KR;
Abstract
An embodiment of the present invention relates to a construction machine. The construction machine, including a swing motor, a boom cylinder, and an arm cylinder, comprises: a main pump part including a first pump, which supplies hydraulic oil to the swing motor, and a second pump, which supplies the hydraulic oil to the boom cylinder and/or the arm cylinder; a manipulation part through which a boom priority operation or a rotation priority operation is selected so that either the first pump or the second pump is operated at the maximum value of a stored horsepower ratio; and a control part for controlling the performance of the other pump not selected by the manipulation part from among the first pump and the second pump.