Title:
HYBRID WORKING MACHINE
Document Type and Number:
Japanese Patent JP2001012418
Kind Code:
A
Abstract:
To always retain a speed controllability of a good hydraulic actuator in consideration to a load variation against the hydraulic actuator connected to a hydraulic pump driven by an electric motor.
This working machine is provided with a hydraulic pump 16 driven by an electric motor 15; a hydraulic actuator 18 operated by the hydraulic pump 16; detection means 60, 61 for detecting a load circumstance of the hydraulic actuator 18; and restriction means 62, 63 for restricting an operation fluid state at a side returned from the hydraulic actuator 18 to the hydraulic pump 16 corresponding to the load circumstance such as a reverse load detected by the detection means 60, 61.
Inventors:
MURAKAMI SHIGEKI
IMANISHI ETSUJIRO
IMANISHI ETSUJIRO
Application Number:
JP18505899A
Publication Date:
January 16, 2001
Filing Date:
June 30, 1999
Export Citation:
Assignee:
KOBE STEEL LTD
KOBELCO CONSTR MACHINERY LTD
KOBELCO CONSTR MACHINERY LTD
International Classes:
E02F9/20; B60K6/20; B60K6/46; B60K6/54; B60K25/00; B60L50/15; B60W10/30; B60W20/00; E02F9/22; F15B11/028; F15B21/14; (IPC1-7): F15B21/14; B60K6/02; B60K25/00; E02F9/20; E02F9/22; F15B11/028
Attorney, Agent or Firm:
Kaji Yoshiyuki