Document Type and Number:
Japanese Patent JPS4971516
Kind Code:
A
Abstract:
A control for operating a fluid actuated device includes an electrically actuated pilot valve for controlling flow of pressurized fluid to the device. The pilot valve has an electromagnet for actuating the valve against a high resistance to being initially opened and a much lower resistance to being maintained in the open state. An electrical control circuit initially introduces a high potential to the electromagnet to open the valve and subsequently introduces a low potential to the electromagnet to maintain the valve in the open state, whereby the fluid activated device is maintained in the actuated state with significantly less power than that used to initially actuate the device.
Application Number:
JP5623073A
Publication Date:
July 10, 1974
Filing Date:
May 19, 1973
Export Citation:
International Classes:
F16K31/06; E21B33/035; E21B34/04; E21B34/06; F16K31/02; F16K31/40; H01F7/18; (IPC1-7): F16K31/02
Domestic Patent References:
| JP46028948A |