Title:
SHOVEL
Document Type and Number:
WIPO Patent Application WO/2015/137329
Kind Code:
A1
Abstract:
A shovel according to an embodiment of the present invention has a first pump (14L) for discharging first working oil, a second pump (14R) for discharging second working oil, a pump/electric motor (14A) for discharging third working oil, and a boom cylinder (7) into which at least the second working oil can flow. When an arm cylinder (8) and the boom cylinder (7) operate simultaneously, the arm cylinder (8) is driven by the first working oil or the third working oil, and the boom cylinder (7) is driven by the second working oil.
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Inventors:
MATSUZAKI EISUKE (JP)
ISHIYAMA HIROSHI (JP)
TSUKANE KOICHIRO (JP)
ISHIDA KAZUSHI (JP)
ISHIYAMA HIROSHI (JP)
TSUKANE KOICHIRO (JP)
ISHIDA KAZUSHI (JP)
Application Number:
PCT/JP2015/056990
Publication Date:
September 17, 2015
Filing Date:
March 10, 2015
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES (JP)
International Classes:
F15B11/02; E02F9/22; F15B11/17
Foreign References:
| JP2010084888A | 2010-04-15 | |||
| JP2002322682A | 2002-11-08 | |||
| JPS5980508A | 1984-05-10 | |||
| JP2013091953A | 2013-05-16 | |||
| JP2010190261A | 2010-09-02 | |||
| JP2013053498A | 2013-03-21 |
Other References:
See also references of EP 3118465A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
Tadashige Ito (JP)
Tadashige Ito (JP)
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