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:
Oct. 06, 2015
Filed:
Sep. 14, 2010
Tetsuji Ono, Kanagawa, JP;
Chunnan Wu, Kanagawa, JP;
Tetsuji Ono, Kanagawa, JP;
Chunnan Wu, Kanagawa, JP;
SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A hybrid-type construction machine comprises an engine; an electric power accumulatorB; first and second pumps; a motor generatorfor driving the first pump; and plural actuatorsA,B,andwhich are driven by the first and second pumps, wherein the first and second pumpsare arranged such that the first pumpcontrols at least one of the actuatorsA,B,andindependently from the second pumpand the second pumpcontrols at least another one of the actuatorsA,B,andindependently from the first pump, the first pumpis electrically driven by the motor generatorwith electric power from the electric power accumulatorB, and the second pumpis directly coupled to the engine