Patent ID: 9091369
Filing Date: 2015-07-28
Classification: F15B,F16K,Y10T

Abstract:
1. A control device for a fluid apparatus, comprising: a control drive including a control element configured to operate the fluid apparatus; and an emergency operating device configured to reset the control element essentially independently of the control drive in the event of a disturbance, the emergency operating device including an energy storage device configured to selectively release stored energy to reset the control element, wherein the energy storage device interacts with a first piston, wherein the first piston bounds a liquid-filled pressure area, wherein a switching valve is configured to selectively connect the liquid-filled pressure area to a tank device, wherein the first piston is arranged to move the control element in a resetting direction when a pressure in the liquid-filled pressure area is relieved, and wherein the fluid apparatus is one of a valve configured to control the steam or gas supply to a turbine and a process fitting configured to control a process fluid.