Compression coupling

that weak signal components will not be lost in background and strong signals will not overload the system. 2. See compression ratio. [mech] Reduction in the volume of a substance due to pressure; for example in building, the type of stress which causes shortening of the fibers of a wooden member. [mech eng] See compression ratio. { kam'presh-an } compression coupling [mech eng] 1. A means of connecting two perfectly aligned shafts in which a slotted tapered sleeve is placed over the junction and two flanges are drawn over the sleeve so that they automatically center the shafts and provide sufficient contact pressure to transmit medium loads. 2. A type of tubing fitting. {kam'presh-an .kap-lig } compression cup [eng] A cup from which lubricant is forced to a bearing by compression. {kam'presh-an .kap } compression failure [ eng ] Buckling or collapse caused by compression, as of a steel or concrete column or of wood fibers. { kam'presh-an .fal-yar}

compression fitting [eng] A leak-resistant pipe joint designed with a tight-fitting sleeve that exerts a large inward pressure on the exterior of the pipe. { kam'presh-an .fid-ig } compression gage [eng] An instrument that measures pressures greater than atmospheric pressure. { kam'presh-an .gaj } compression ignition [mech eng] Ignition produced by compression of the air in a cylinder of an internal combustion engine before fuel is admitted. { kam'presh-an ig'nish-an } compression-ignition engine See diesel engine.

{ kampresh-an ig^ish-an 'en-jan } compression member [eng] A beam or other structural member which is subject to compres-sive stress. { kam'presh-an .mem-bar} compression modulus See bulk modulus of elasticity. {kam'presh-an .maj-a-las} compression mold [eng] A mold for plastics which is open when the material is introduced and which shapes the material by heat and by the pressure of closing. { kam'presh-an .mold } compression pressure [mech eng] That pressure developed in a reciprocating piston engine at the end of the compression stroke without combustion of fuel. { kam'presh-an .presh-ar} compression process [chem eng] The recovery of natural gasoline from gas containing a high proportion of hydrocarbons. { kam'presh-an .pra-sas }

compression ratio [electr] The ratio of the gain of a device at a low power level to the gain at some higher level, usually expressed in decibels. Also known as compression. [mech eng] The ratio in internal combustion engines between the volume displaced by the piston plus the clearance space, to the volume of the clearance space. Also known as compression. { kam'presh-an .raT-shoT } compression refrigeration [mech eng] The cooling of a gaseous refrigerant by first compressing it to liquid form (with resultant heat buildup), cooling the liquid by heat exchange, then releasing pressure to allow the liquid to vaporize (with resultant absorption of latent heat of vaporization and a refrigerative effect). { kam'presh-an ri.frij-a'ra-shan } compression release [mech eng] Release of compressed gas resulting from incomplete closure of intake or exhaust valves. { kam'presh-an ri'lees }

compression ring [mech eng] A ring located at the upper part of a piston to hold the burning fuel charge above the piston in the combustion chamber, thus preventing blowby. { kam'presh-an .rig }

compression spring [eng] A spring, usually a coil spring, which resists a force tending to compress it. { kam'presh-an .sprig } compression strength [mech] Property of a material to resist rupture under compression. {kam'presh-an .stregkth } compression stroke [mech eng] The phase of a positive displacement engine or compressor in which the motion of the piston compresses the fluid trapped in the cylinder. { kam'presh-an .strok}

compression test [eng] A test to determine compression strength, usually applied to materials of high compression but low tensile strength, in which the specimen is subjected to increasing compressive forces until failure occurs. {kam'presh-an .test} compressive member [civ eng] A structural member subject to tension. {kam'pres-iv 'mem-bar}

compressive strength [mech] The maximum compressive stress a material can withstand without failure. { kam'pres-iv 'stregkth } compressive stress [mech] A stress which causes an elastic body to shorten in the direction of the applied force. { kam'pres-iv 'stres } compressor [ electr] The part of a compandor that is used to compress the intensity range of signals at the transmitting or recording end of a circuit. [mech eng] A machine used for increasing the pressure of a gas or vapor. Also known as compression machine. { kam'pres-ar}

compressor blade [mech eng] The vane components of a centrifugal or axial-flow, air or gas compressor. { kam'pres-ar .blad } compressor station [mech eng] A permanent facility which increases the pressure on gas to move it in transmission lines or into storage. { kam'pres-ar .sta-shan } compressor valve [mech eng] A valve in a compressor, usually automatic, which operates by pressure difference (less than 5 pounds per square inch or 35 kilopascals) on the two sides of a movable, single-loaded member and which has no mechanical linkage with the moving parts of the compressor mechanism. { kam'pres-ar .valv }

compromise joint [civ eng] 1. A joint bar used for joining rails of different height or section.

Solar Stirling Engine Basics Explained

Solar Stirling Engine Basics Explained

The solar Stirling engine is progressively becoming a viable alternative to solar panels for its higher efficiency. Stirling engines might be the best way to harvest the power provided by the sun. This is an easy-to-understand explanation of how Stirling engines work, the different types, and why they are more efficient than steam engines.

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