Title:
HYDRAULIC DRIVE SYSTEM
Document Type and Number:
Japanese Patent JP2001124006
Kind Code:
A
Abstract:
To provide a low cost hydraulic drive system capable of high speed and highly accurate machining, conserving energy, using a low capacity motor and minimizing degrees of temperature rise.
A basic circuit 2 and a power assist circuit 3 are connected to a hydraulic cylinder 1. While the basic circuit 2 dives the hydraulic cylinder 1 with no-load, the power assist circuit 3 accumulates oil to supply to the hydraulic cylinder 1 only when the hydraulic cylinder 1 is loaded.
Inventors:
SUGANO KAZUHIRO
Application Number:
JP31027999A
Publication Date:
May 08, 2001
Filing Date:
October 29, 1999
Export Citation:
Assignee:
AMADA CO LTD
AMADA ENG CT CO LTD
AMADA ENG CT CO LTD
International Classes:
B30B1/32; F15B11/00; F15B11/02; (IPC1-7): F15B11/00; B30B1/32; F15B11/02
Attorney, Agent or Firm:
Akira Saito
Previous Patent: HYDRAULIC CONTROL DEVICE OF CONSTRUCTION MACHINE
Next Patent: HYDRAULIC CONTROL SYSTEM AND METHOD TO OPERATE IT
Next Patent: HYDRAULIC CONTROL SYSTEM AND METHOD TO OPERATE IT