OPERATION TIME PERIOD SETTING DEVICE FOR FLUID PRESSURE ACTUATOR

WIPO Patent Application WO/2011/148523

A1

An operation time period setting device is applied to a fluid pressure actuator driving system (10) comprising: an actuator body (13) provided with a piston (14); supply/discharge flow paths (17a, 17b); and electrically operated flow rate regulating valves (24a, 24b) for regulating the flow rate of compressed air. A target operation time period in which the piston (14) moves while the drive system (10) is being steadily operated is inputted in the operation time period setting device (31). The actual operation time in which the piston (14) moves is calculated, and the difference between the actual operation time period and the target operation time period previously inputted in the operation time period setting device (31) is calculated. The flow rate regulating valves (24a, 24b) are driven by a drive signal from the operation time period setting device (31) so that the difference between the time periods is reduced, and thus the flow rate of air flowing in the supply/discharge paths (17a, 17b) is regulated.

OBA RYOTARO (JP)
SAITO YUTAKA (JP)
MAKITA KAZUMI (JP)
TAKAHASHI YOSHIHIRO (JP)

PCT/JP2010/064420

December 01, 2011

August 25, 2010

Click for automatic bibliography generation  

KOGANEI LTD (JP)
OBA RYOTARO (JP)
SAITO YUTAKA (JP)
MAKITA KAZUMI (JP)
TAKAHASHI YOSHIHIRO (JP)

F15B9/09; F15B11/06; G05D3/00

JP2004067190A	2004-03-04
JPH05133401A	1993-05-28
JPH07233802A	1995-09-05
JP2003136399A	2003-05-14
JPH0217626U	1990-02-05
JP2002031101A	2002-01-31
JPH01303301A	1989-12-07
JPH0526210A	1993-02-02
JPH03249408A	1991-11-07

TSUTSUI, Yamato et al. (JP)
Tsutsui Daiwa (JP)

View/Download PDF      PDF Help

Previous Patent: GREENHOUSE CULTIVATION SYSTEM

Next Patent: METHOD FOR SWITCHING APPLICATION SERVER, MANAGEMENT COMPUTER, AND STORAGE MEDIUM STORING PROGRAM