gas lubrication

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• Lubrication — is the process, or technique employed to reduce wear of one or both surfaces in close proximity, and moving relative to each another, by interposing a substance called lubricant between the surfaces to carry or to help carry the load (pressure… …   Wikipedia

• Gas-operated reloading — Gas operation is a system of operation used to provide energy to operate autoloading firearms. In gas operation, a portion of high pressure gas from the cartridge being fired is used to power a mechanism to extract the spent case and chamber a… …   Wikipedia

• lubrication — See lubricate. * * * Introduction of any of various substances between sliding surfaces to reduce wear and friction. Lubricants may secondarily control corrosion, regulate temperature, electrically insulate, remove contaminants, or damp shock.… …   Universalium

• Gas compressor — A gas compressor is a mechanical device that increases the pressure of a gas by reducing its volume. Compressors are similar to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe. As gases are… …   Wikipedia

• gas-turbine engine — Introduction       any internal combustion engine employing a gas as the working fluid used to turn a turbine. The term also is conventionally used to describe a complete internal combustion engine consisting of at least a compressor, a… …   Universalium

• Gas turbine-electric locomotive — DescriptionIn a GTEL a turbine engine, similar to a turboshaft engine, drives an output shaft that is in turn attached to an electrical generator via a system of gears. This in turn powers the traction motors. In overall terms the system is very… …   Wikipedia

• Hydrodynamic lubrication — Hydrodynamic (HD) lubrication (or fluid film lubrication) has essential elements:#A lubricant, which must be a viscous fluid. #Hydrodynamic flow behavior of fluid between bearing and journal. #The surfaces between which the fluid films move must… …   Wikipedia

• Liquefied petroleum gas — (also called LPG, GPL, LP Gas, or liquid propane gas) is a flammable mixture of hydrocarbon gases used as a fuel in heating appliances and vehicles. It is increasingly used as an aerosol propellant and a refrigerant, replacing chlorofluorocarbons …   Wikipedia

• Dry gas seal — Dry gas seals are non contacting, dry running mechanical face seals consist of a mating (rotating) ring and a primary (stationary) ring. When operating, grooves in the rotating ring generate a fluid dynamic force causing the stationary ring to… …   Wikipedia

• Oil gas — Oil Oil (oil), n. [OE. oile, OF. oile, F. huile, fr. L. oleum; akin to Gr. ?. Cf. {Olive}.] Any one of a great variety of unctuous combustible substances, more viscous than and not miscible with water; as, olive oil, whale oil, rock oil, etc.… …   The Collaborative International Dictionary of English

• hot-tank lubrication system — A lubrication system of gas turbine engines in which hot oil from the engine is returned to the tank without cooling …   Aviation dictionary