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:
Dec. 17, 2013
Filed:
Mar. 28, 2008
Tadashi Kawaguchi, Hiratsuka, JP;
Jun Morinaga, Yokohama, JP;
Hiroaki Inoue, Hiratsuka, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
A work machine includes: hydraulic actuators, and; a capacitorfor storing electric power when a generator motoroperates as a generator and for supplying electric power when the generator motoroperates as a motor; and a swing electric motor, the hydraulic actuators, andand the swing electric motorare operated by operation of operating levers. The work machine includes an idling stop control unitfor stopping the idling of an engineand retains the swing electric motorin an operation prohibited state at least on the condition that stored voltage of the capacitoris predetermined voltage or higher when the neutral states of the operating leverscontinue for a predetermined stop time during operation of the engine