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
SAKAMOTO MAKOTO
TSUGO TAKAYUKI
KAWACHI MOTOTSUGU
TAMURA TORU
KOIDE NAOTSUYO
KIKKO KOICHIRO
CHIBA SHINGO
Application Number:
JP28183298A
Publication Date:
April 18, 2000
Filing Date:
October 02, 1998
Export Citation:
Assignee:
SHIMIZU CONSTRUCTION CO LTD
KURIKOMA KIKO KK
KURIKOMA KIKO KK
International Classes:
F15B20/00; F15B1/00; (IPC1-7): F15B1/00; F15B20/00
Attorney, Agent or Firm:
Masatake Shiga (3 outside)