The evolution of spacecraft valves has come a long way since they were used in liquid-fueled Saturn V rockets. Today, spacecraft component manufacturers leverage vertical integration, 3D printing and ...
Click to open image viewer. Shown here is a mock-up of a reaction control system (RCS) engine developed for use on the Apollo Service Module. RCS thrusters like this one were mounted externally in ...
Click to open image viewer. This is an Apollo Reaction Control System (RCS) rocket motor, or thruster. The RCS maintained the attitude of the Apollo Service Module and helped it to maneuver in space, ...
On/off valves are basically on/off switches for hydraulic systems. They are typically installed in applications where precise position or speed control is not required. Proportional valves adjust flow ...
In this transitional period between the gasoline and electric ages, there's still plenty of room, and plenty of motivation, for last-gasp improvements to the combustion engine – and a Swiss R&D ...
A worksheet that calculates control valve installed gain can be part of any control valve selection process. For many years, the author has used, and promoted the use of, control valve installed flow ...
Learning the basics can ease loop tuning frustration and ensure stability. During plant operations, it seems that tuning control loops is an ongoing task, which can be a continual frustration to ...
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