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:
Apr. 22, 2014
Filed:
Oct. 07, 2010
Kousaku Ohno, Mito, JP;
Hidetoshi Satake, Ishioka, JP;
Kousaku Ohno, Mito, JP;
Hidetoshi Satake, Ishioka, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
[Object] Motorization of a running gear of a construction machine traveling on wheels is realized without enormous increases in vehicle-body dimensions and costs. [Solution Means] A wheeled excavatorincludes travel wheelsinstalled in a vehicle body, an engine, a running motor-generator, an inverterand a batterywhich are electrically connected to the motor-generator, a hydraulic pumpdriven by the engine, and a power transmission mechanism which transmits power among the engine, the wheels, the running motor-generator, and the hydraulic pump. A clutchwhich connects and disconnects the power transmission between the engineand the wheelsis provided in the power transmission mechanism. In a required area on the vehicle body, a clutch switching means is mounted for switching the clutchto a disengaged state during a level road run and to an engaged state during a downhill run.