Title:
WORKING MACHINE
Document Type and Number:
WIPO Patent Application WO/2016/017209
Kind Code:
A1
Abstract:
A working machine is configured so that pilot oil supplied to a variable displacement pump is directly controlled to improve heat balance.
A working machine (1) is provided with: an engine (15); a pilot pump (P3) for discharging pilot oil; pilot oil passages (TL, TR) connected to the discharge side of the pilot pump; an operating valve (22, 42) provided in the pilot oil passages (TL, TR); operating pumps (7L, 7R), the outputs of which can be changed by the pilot oil outputted from the operation valve (22, 42); a measurement device (26) for measuring temperatures; and a pressure regulation section (24) for regulating pilot pressure when temperature measured by the measurement device (26) does not coincide with a reference value.
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Inventors:
FUKUDA YUJI (JP)
KINUGAWA RYOSUKE (JP)
NAKAGAWA HIROAKI (JP)
KINUGAWA RYOSUKE (JP)
NAKAGAWA HIROAKI (JP)
Application Number:
PCT/JP2015/058553
Publication Date:
February 04, 2016
Filing Date:
March 20, 2015
Export Citation:
Assignee:
KUBOTA KK (JP)
International Classes:
E02F9/22; F15B11/02; F15B11/08; F15B21/045
Foreign References:
| JP2003307180A | 2003-10-31 | |||
| JP3308019B2 | 2002-07-29 | |||
| JPH11336701A | 1999-12-07 |
Attorney, Agent or Firm:
YASUDA Toshio et al. (JP)
Toshio Yasuda (JP)
Toshio Yasuda (JP)
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