piston action

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• Piston (mécanique) — Pour les articles homonymes, voir Piston. Un piston permet la conversion d une pression en un travail ou réciproquement. En mécanique, un piston est une pièce …   Wikipédia en Français

• 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 (entreprise) — Pour les articles homonymes, voir Piston. Le piston est l action par laquelle une personne est recrutée pour un emploi (ou tout autre poste) grâce à l appui d une connaissance qui, travaillant souvent au sein de l entreprise (ou de l organisation …   Wikipédia en Français

• action — 1. action [ aksjɔ̃ ] n. f. • XIVe « manière d agir »; XIIIe en parlant de personnes; déb. XIIe accium de grâce; lat. actio I ♦ 1 ♦ Ce que fait qqn et ce par quoi il réalise une intention ou une impulsion. ⇒ 1. acte, 2. fait. « Les actions les… …   Encyclopédie Universelle

• piston thrust — The pushing action of the piston which occurs at the sides of the piston 90° away from the piston pin as it pushes against the cylinder wall …   Dictionary of automotive terms

• piston cartilage — a retractable cartilage support of the three lingual laminae in Petromyzontiformes enabling a rasping action …   Dictionary of ichthyology

• Combination action — A combination action is a system designed to capture specific organ registrations to be recalled instantaneously by the player while he is playing. Because of this, it is also referred to as a capture system. It usually consists of several… …   Wikipedia

• Firearm action — In firearms terminology, an action is the system of operation used to load rounds and/or seal the breech. In many weapons a breechblock reciprocates in the receiver of the firearm. The term is also used for the physical parts inside the weapon… …   Wikipedia

• Axial piston pump — An axial piston pump is a positive displacement pump that has a number of pistons in a circular array within a cylinder block. It can be used as a stand alone pump, a hydraulic motor or an automotive air conditioning compressor. Contents 1… …   Wikipedia

• Back-action steam engine — Steam engine Steam en gine ([e^]n j[i^]n). An engine moved by steam. [1913 Webster] Note: In its most common forms its essential parts are a piston, a cylinder, and a valve gear. The piston works in the cylinder, to which steam is admitted by the …   The Collaborative International Dictionary of English

• 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