Patent ID: 9163619
Filing Date: 2015-10-20
Classification: F04B,F15B,F16K,Y10T

Abstract:
1. A valve actuator control system for use with a valve actuator, comprising: a first pump assembly; a second pump assembly; a first control valve assembly in fluid communication with the first pump assembly; a first relief valve assembly configured to open and close fluid flow between the first control valve assembly and the valve actuator; a second control valve assembly in fluid communication with the second pump assembly; a second relief valve assembly configured to open and close fluid flow between the second control valve assembly and the valve actuator; a fluid reservoir in communication with the first pump assembly, the second pump assembly, the first control valve assembly, the second control valve assembly, the first relief valve assembly, and the second relief valve assembly via one or more fluid circuits; and a controller assembly operable to actuate the first pump assembly or the second pump assembly via one or more relays to direct fluid from the fluid reservoir to the valve actuator via the one or more fluid circuits, and operable to actuate the first control valve assembly or the second control valve assembly via one or more relays to direct fluid from the valve actuator to the fluid reservoir via the one or more fluid circuits.