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:
Jun. 25, 2024
Filed:
Sep. 22, 2021
Applicant:
Sumitomo Construction Machinery Co., Ltd., Tokyo, JP;
Inventors:
Kiminori Sano, Chiba, JP;
Ryuji Shiratani, Chiba, JP;
Assignee:
SUMITOMO CONSTRUCTION MACHINERY CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/22 (2006.01); E02F 9/20 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2246 (2013.01); E02F 9/2296 (2013.01); E02F 9/2029 (2013.01);
Abstract
An excavator may include a lower traveling body; an upper turning body pivotally installed to the lower traveling body; an engine installed in the upper turning body; a main pump driven by the engine; and a processor and a memory that stores program instructions causing the processor to control a flow rate of hydraulic oil discharged by the main pump. The program instructions can cause the processor to, when a load of the engine increases, delay a response of the main pumpuntil an actual torque of the engine rises up to a level corresponding to the load of the engine.