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Specific speed N s, is used to characterize turbomachinery speed. [1] Common commercial and industrial practices use dimensioned versions which are of equal utility. Specific speed is most commonly used in pump applications to define the suction specific speed —a quasi non-dimensional number that categorizes pump impellers as to their type and proportions.
Chicago, Burlington and Quincy No. 4000, also known as Aeolus, is a preserved S-4a class 4-6-4 "Hudson" steam locomotive that was originally built by Baldwin in 1930 as S-4 locomotive No. 3002. It was primarily used to pull fast passenger trains before it was rebuilt by the Chicago, Burlington and Quincy Railroad in 1937 to be re-classified as ...
This may be done by injecting fluids at high pressure (hydraulic fracturing), injecting fluids laced with round granular material (proppant fracturing), or using explosives to generate a high pressure and high speed gas flow (TNT or PETN up to 1,900,000 psi (13,000,000 kPa) ) and (propellant stimulation up to 4,000 psi (28,000 kPa) ).
Oil pump from a scooter engine. A gear pump uses the meshing of gears to pump fluid by displacement. [1] They are one of the most common types of pumps for hydraulic fluid power applications. The gear pump was invented around 1600 by Johannes Kepler. [2] Gear pumps are also widely used in chemical installations to pump high-viscosity fluids.
The basic working principle of an air-operated double diaphragm pump. Cross-section sketch of diaphragm fuel pump Air-operated double diaphragm pump. A diaphragm pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm (check valve ...
Compression ratio 17.0:1, Zexel Electronic control type distributor type pump (direct injection inside diesel tube) or Denso Common Rail direct injection, 121 kW (165 PS) at 4000 rpm, 351 N⋅m (259 lb⋅ft) at 2000-3000 rpm
The founder of R A Lister and Company was Robert Ashton Lister, who was born in 1845. [1] He led the exhibit of the family's products to the Paris Exhibition of 1867, [2] but on return fell out with his father, [citation needed] and in the same year founded R.A.Lister and Company [3] in the former Howard's Lower Mill, Water Street in Dursley to manufacture agricultural machinery.
Survivors continued to perform well until the mid-1950s. The 4000 class became a template for two later famous GWR 4-cylinder 4-6-0 classes - the Castle and King Class. [16] According to le Fleming "their performance was consistently of the highest standard and they were remarkable free-running engines which rarely suffered breakdown in service