Title:
作業機械の電液駆動システム
Document Type and Number:
Japanese Patent JP5600274
Kind Code:
B2
Abstract:
An electro-hydraulic drive system for a work machine which drives an upper rotary body (16) by controlling a flow rate of a hydraulic fluid by a control valve (6), comprises an electro-hydraulic pump (3) including a hydraulic pump (4) driven by an engine (2), and a first electric motor (5), and an electro-hydraulic motor (9) including a hydraulic motor (10) rotated by the hydraulic oil supplied from the electro-hydraulic pump (3), and a second electric motor (11), and a controller (7) which determines an operating state of the first electric motor (5) and an operating state of the second electric motor (11) based on a load of the electro-hydraulic pump (3) and a load of the electro-hydraulic motor (11), and is able to perform an efficient operation by using a hydraulic pressure (fluid pressure) and electric power
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Inventors:
Yamada 昌啓
Yamamoto Good
Yukito Imamura
Yamamoto Good
Yukito Imamura
Application Number:
JP2010183428A
Publication Date:
October 01, 2014
Filing Date:
August 18, 2010
Export Citation:
Assignee:
Kawasaki Heavy Industries, Ltd.
International Classes:
F15B21/14; B60K6/12; E02F9/20; F03C1/40; F04B49/00; F04B49/06; H02P5/00
Attorney, Agent or Firm:
Patent business corporation Owner old patent firm