control piston

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• Control valves — are valves used to control conditions such as flow, pressure, temperature, and liquid level by fully or partially opening or closing in response to signals received from controllers that compare a setpoint to a process variable whose value is… …   Wikipedia

• Piston valves — are an integral part of the cylinder arrangement of a steam locomotive. They control the admission and exhaustion of steam from the cylinders, enabling a locomotive to move under its own power. Design principles When on the move, a steam… …   Wikipedia

• piston ring — n. a thin split ring fitted into a groove around a piston to seal the cylinder, transfer heat, and control cylinder wall lubrication …   English World dictionary

• Piston ring — A piston ring is an open ended ring that fits into a groove on the outer diameter of a piston in a reciprocating engine such as an internal combustion engine or steam engine. The three main functions of piston rings in reciprocating engines are:# …   Wikipedia

• Piston valve — A piston valve is a device used to control the motion of a fluid along a tube or pipe by means of the linear motion of a piston within a chamber or cylinder.Examples of piston valves are: * The valves used in the valve gear of many stationary… …   Wikipedia

• piston and cylinder — In mechanical engineering, a sliding cylinder with a closed head (the piston) that moves up and down (or back and forth) in a slightly larger cylindrical chamber (the cylinder) by or against pressure of a fluid, as in an engine or pump. The… …   Universalium

• piston ring — A metal, split ring installed in the groove on the outside wall of the piston. The ring contacts the sides of the ring groove and also rubs against the cylinder wall thus sealing the space between the piston and the wall. Poor rings can cause… …   Dictionary of automotive terms

• Control line — Brodak Control Line Aerobatic Strega in flight Control line (also called U Control ) is a simple and light way of controlling a flying model aircraft. The aircraft is connected to the operator by a pair of lines, attached to a handle, that work… …   Wikipedia

• control — [1] A device or mechanism for adjusting a component. See cruise control. [2] The ability of the driver to make a vehicle perform as required. [3] To regulate. [4] Automatic or manual device used to stop, start, and/or regulate flow of gas, liquid …   Dictionary of automotive terms

• piston ring, oil control — See oil control ring …   Dictionary of automotive terms

• piston-valve engine — A two stroke engine that relies on the ports in the cylinder walls to control admission and exhaust of the air/fuel mixture; it is not equipped with other control elements such as rotary valves …   Dictionary of automotive terms