Title:
ELECTRIC CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2024/048151
Kind Code:
A1
Abstract:
An electric hydraulic shovel (1) comprises a heater core (34) for heating, an electric heater (35) that heats a second heat exchange fluid to be supplied to the heater core (34), and a second reserve tank (39) into which the second heat exchange fluid flows in and from which the second heat exchange fluid flows out. A partition wall (12) for partitioning a first cooling fan (28) and the electric heater (35) from each other is additionally provided, and a first reserve tank (29), into which a first heat exchange fluid for cooling an electric motor (15) and the like flows in and from which the first heat exchange fluid flows out, is disposed on the same side as the first cooling fan (28) with the partition wall (12) as a border. Meanwhile, the second reserve tank (39) is disposed on the opposite side of the first cooling fan (28) with the partition wall (12) as a border.
Inventors:
KUWAHARA TAKUMA (JP)
KIHARA SEIICHI (JP)
FURUKAWA YUUTA (JP)
KIHARA SEIICHI (JP)
FURUKAWA YUUTA (JP)
Application Number:
PCT/JP2023/027556
Publication Date:
March 07, 2024
Filing Date:
July 27, 2023
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD (JP)
International Classes:
E02F9/00; B60H1/22; B60K11/04; E02F9/16; F01P3/18; F01P3/20; F01P11/10
Domestic Patent References:
| WO2016021046A1 | 2016-02-11 | |||
| WO2016080340A1 | 2016-05-26 |
Foreign References:
| JP2009274462A | 2009-11-26 | |||
| JP2021188407A | 2021-12-13 | |||
| JP2010265712A | 2010-11-25 | |||
| JP2016089422A | 2016-05-23 | |||
| JP6527287B2 | 2019-06-05 | |||
| JP2008037234A | 2008-02-21 |
Attorney, Agent or Firm:
HIROWA PATENT FIRM (JP)
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