Title:
【発明の名称】アクチュエータ操作信号感知装置
Document Type and Number:
Japanese Patent JP2972555
Kind Code:
B2
Abstract:
A device for sensing actuator operating signal in a hydraulic system is disclosed. The device has auxiliary valves directly coupled to the directional control valves respectively, the internal lines of which auxiliary valves are opened or become orifices in accordance with positions of spools of their associated directional control valves. A fluid line extends from a hydraulic pump to a return tank after passing the auxiliary valves in a series. The device also has two means for detecting fluid pressure at two given points along the fluid line. An additional orifice is formed in the hydraulic line between the auxiliary valves and the pressure detecting means is provided in the hydraulic line before and after the additional orifice.
Inventors:
DAE SEUN CHUN
Application Number:
JP18837195A
Publication Date:
November 08, 1999
Filing Date:
June 30, 1995
Export Citation:
Assignee:
BORUBO KONSUTORAKUSHON IKUITSUPUMENTO KORIA CO LTD
International Classes:
G01L19/00; F15B9/08; F15B11/16; (IPC1-7): F15B11/16; G01L19/00
Domestic Patent References:
| JP63304837A | ||||
| JP3137418A | ||||
| JP5419514Y2 |
Attorney, Agent or Firm:
Kazuo Shigenobu (1 person outside)