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Patent Searching and Data


Title:
SERVO MECHANISM AND CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2001153101
Kind Code:
A
Abstract:

To provide a servo mechanism for shortening a control time and increasing positioning accuracy, etc.

The respective control ports C1 and C2 of servo valves 11 and 21 are connected to the mold closing port 32 and the mold opening port 33 of a cylinder 31 those ports are a pair of destinations for working fluid respectively, and for instance, the spools 14 and 24 for valves 11 and 21 are operated together at a valve closing position to communicate the ports C1 and C2 of the respective valves 11 and 21 to return ports T1 and T2 respectively, thereby concurrently lowering pressure in the respective ports C1 and C2, also eliminating the use of the valves 11 an 21 having much overlapped quantity, without exerting influence of the pressure in another port by the pressure in any side port of both the ports C1 and C2.


Inventors:
Tate, Shuji
Application Number:
JP1999000339151
Publication Date:
June 08, 2001
Filing Date:
November 30, 1999
Export Citation:
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Assignee:
EGUZE:KK
International Classes:
F15B9/09; F15B13/043; F16K31/02; (IPC1-7): F15B9/09; F15B13/043; F16K31/02
Attorney, Agent or Firm:
笹井 浩毅