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Diffusion Pump
Diffusion pumps use a high speed jet of vapor to direct gas molecules in the pump throat down into the bottom of the pump and out the exhaust. They were the first type of high vacuum pumps operating in the regime of free molecular flow, where the movement of the gas molecules can be better understood as diffusion than by conventional fluid dynamics. Invented in 1915 by Wolfgang Gaede, he named it a ''diffusion pump'' since his design was based on the finding that gas cannot diffuse against the vapor stream, but will be carried with it to the exhaust. However, the principle of operation might be more precisely described as gas-jet pump, since diffusion plays a role also in other high vacuum pumps. In modern textbooks, the diffusion pump is categorized as a momentum transfer pump. The diffusion pump is widely used in both industrial and research applications. Most modern diffusion pumps use silicone oil or polyphenyl ethers as the working fluid. History In the late 19th century, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M6 Diffusion Pump
M6, M06, M.6, or M-6 may refer to: Military * M6 bayonet, a bayonet for the M14 rifle * M6 Bomb Truck, a truck used to move bombs during World War II * M6 Gun Motor Carriage, a United States wheeled Tank Destroyer of the Second World War * M6 gun, a 3" towed artillery piece * M6 heavy tank, a World War II heavy tank design that never entered full production * M6 Linebacker, an anti-aircraft variant of the M2 Bradley infantry fighting vehicle * M6 mine, a United States metal-cased, circular anti-tank landmine * M6 ''Mosegris'', Danish designation for C15TA Armoured Truck * M6 Tractor * M6-640, a 60 mm mortar used by the British Army * Hirtenberger M6C-210 Commando, a 60 mm mortar used by various armies * LWRC M6, a series of United States military carbines based on the M4 carbine Survival guns * M6 Aircrew Survival Weapon, a .22 Hornet over .410 gauge combination gun * Springfield Armory M6 Scout, a .22 LR over .410 gauge combination gun * Chiappa M6 Survival Gu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
