Title:
油圧式作業機
Document Type and Number:
Japanese Patent JP6689525
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a hydraulic working machine capable of preventing working oil from being overheated by arranging an oil cooler for an emergency escaping unit and operating the oil cooler for an emergency escaping unit together with an oil cooler for a main body at the time of high heating state.SOLUTION: An emergency escaping unit 20 for use in operating a travel device and a working hydraulic device while being connected to a working hydraulic circuit L11 when abnormal state occurs at an engine 32 or working hydraulic pumps 27, 28, 29, 30, 31 is installed at a working hydraulic device. An emergency escaping hydraulic circuit L12 arranged at the emergency escaping unit 20 is provided with an oil cooler 38 for emergency escaping oil cooler for cooling working oil discharged toward the oil tank 36.SELECTED DRAWING: Figure 1
Inventors:
Hiroshi Muto
Application Number:
JP2016058153A
Publication Date:
April 28, 2020
Filing Date:
March 23, 2016
Export Citation:
Assignee:
Nippon Vehicle Manufacturing Co., Ltd.
International Classes:
F15B21/045; E02F9/22; E02F9/24; F15B20/00
Domestic Patent References:
| JP2015197163A | ||||
| JP2015145602A | ||||
| JP2004225277A | ||||
| JP5045207U | ||||
| JP3288064A | ||||
| JP2012067454A | ||||
| JP8000650U |
Attorney, Agent or Firm:
Kazuhiko Kido
Yoshihiko Kido
Yoshihiko Kido