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Title:
HYDRAULIC PUMP UNIT
Document Type and Number:
Japanese Patent JP2000110801
Kind Code:
A
Abstract:

To provide an emergency measure against a fault of a hydraulic source in a hydraulic machine such as a heavy construction machine.

This hydraulic pump unit 1 is applied to a hydraulic machine such as a hydraulic crane 2 provided with hydraulic actuators such as hydraulic cylinder 3 to 6, and functions as a back-up for a hydraulic source device. The hydraulic pump unit 1 is provided with a hydraulic pump 11 that can drive the hydraulic actuators, a electric motor 12 driving the hydraulic pump and a battery 13 driving the electric motor 12, and is constituted such that a hydraulic hose 20 supplying operating oil from the hydraulic pump 11 to the hydraulic actuators is detachably connected to the hydraulic actuators.


Inventors:
Kamono, Kotaro
Sakamoto, Makoto
Tsugo, Takayuki
Kawachi, Mototsugu
Tamura, Toru
Koide, Naotsuyo
Kikko, Koichiro
Chiba, Shingo
Application Number:
JP1998000281832
Publication Date:
April 18, 2000
Filing Date:
October 02, 1998
Export Citation:
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Assignee:
SHIMIZU CORP
KURIKOMA KIKO KK
International Classes:
F15B20/00; F15B1/00; (IPC1-7): F15B1/00; F15B20/00
Attorney, Agent or Firm:
志賀 正武 (外3名)



 
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