Title:
WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2013/035484
Kind Code:
A1
Abstract:
A work machine configured such that the maximum value for absorption torque for a hydraulic pump is changed to a higher value when the work machine is in a specified state, and wherein the issues occurring when an operation lever is operated at an intermediate lever stroke position are resolved, said issues being: vibration in the machine body caused by switching of the maximum absorption torque setting; and an adverse impact on operability and violent shaking of the machine body, when the operation lever is moved relative to the machine body. When the maximum absorption torque setting is at a position (E2), being the maximum absorption torque setting having good fuel efficiency, and full operation of either or both a boom operation member (21e) and running operation members (21a, 21b) is detected, the work machine is controlled so as to automatically switch to a position (E1) having a greater maximum absorption torque setting than the position (E2).
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Inventors:
HORII HIROSHI (JP)
OTANI TOSHIAKI (JP)
HIRAMATSU HISAYUKI (JP)
OTANI TOSHIAKI (JP)
HIRAMATSU HISAYUKI (JP)
Application Number:
PCT/JP2012/070286
Publication Date:
March 14, 2013
Filing Date:
August 09, 2012
Export Citation:
Assignee:
KUBOTA KK (JP)
HORII HIROSHI (JP)
OTANI TOSHIAKI (JP)
HIRAMATSU HISAYUKI (JP)
HORII HIROSHI (JP)
OTANI TOSHIAKI (JP)
HIRAMATSU HISAYUKI (JP)
International Classes:
F15B11/00; E02F9/22; F15B11/02; F15B21/0427
Foreign References:
| JP2001140678A | 2001-05-22 | |||
| JPH09151487A | 1997-06-10 | |||
| JP2002295408A | 2002-10-09 | |||
| JPH04194383A | 1992-07-14 | |||
| JPH05280070A | 1993-10-26 |
Attorney, Agent or Firm:
YASUDA Toshio et al. (JP)
Toshio Yasuda (JP)
Toshio Yasuda (JP)
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Claims: