piston-and-valve arrangement

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• 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

• Valve gear — The valve gear of a steam engine is the mechanism that operates the inlet and exhaust valves to admit steam into the cylinder and allow exhaust steam to escape, respectively, at the correct points in the cycle. It is sometimes referred to as the… …   Wikipedia

• Sleeve valve — The sleeve valve is a type of valve mechanism for piston engines, distinct from the more common poppet valve. They saw use in some pre World War II luxury cars, sports cars, the Willys Knight car and light truck, and saw substantial use in… …   Wikipedia

• Gresley conjugated valve gear — The Gresley conjugated valve gear was a valve gear for steam locomotives designed by Sir Nigel Gresley, chief mechanical engineer of the LNER, assisted by Harold Holcroft. It enables a three cylinder locomotive to operate with only the two sets… …   Wikipedia

• Bulleid chain-driven valve gear — and were based upon motor vehicle practice in an attempt to create a compact, but efficient design with a minimum of service requirements. Design principles Oliver Bulleid s decision to have three cylinders, all driving the middle coupled axle of …   Wikipedia

• Stephenson valve gear — The Stephenson valve gear or Stephenson link or shifting link [Snell, J B (1971). Mechanical Engineering: Railways, Longman Co, London] is a simple design of valve gear that was widely used throughout the world for all kinds of steam engine. It… …   Wikipedia

• Manifold vacuum — Not to be confused with Vacuum manifold. Manifold vacuum, or engine vacuum in an internal combustion engine is the difference in air pressure between the engine s intake manifold and Earth s atmosphere. Manifold vacuum is an effect of a piston s… …   Wikipedia

• Timeline of Islamic science and engineering — This timeline of Islamic science and engineering covers the general development of science and technology in the Islamic world during the Islamic Golden Age, usually dated from the 7th to 16th centuries.From the 17th century onwards, the advances …   Wikipedia

• LNER Gresley Classes A1 and A3 — Disambiguation: LNER Class A1, LNER Thompson Class A1/1, LNER Peppercorn Class A1 LNER Gresley Classes A1 and A3[ …   Wikipedia

• Swing-piston engine — A swing piston engine is a type of internal combustion engine in which the pistons move in a circular motion inside a ring shaped cylinder , moving closer and further from each other to provide compression and expansion. Generally two sets of… …   Wikipedia

• eccentric-and-rod mechanism — ▪ mechanics  arrangement of mechanical parts used to obtain a reciprocating straight line motion from a rotating shaft; it serves the same purpose as a slider crank mechanism and is particularly useful when the required stroke of the… …   Universalium