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1、附录HydraulicSystemHydraulicpresserdriveandairpressuredrivehydraulicfluidasthetransmissionismadeaccordingtothe17thcentury,Pascal'sprincipleofhydrostaticpressuretodrivethedevelopmentofanemergingtechnology,theUnitedKingdomin1795•BarmanJoseph(JosephBarman,1749-1814),inLondonwat
2、erasamediumtoformhydraulicpressusedinindustry,thebirthoftheworld'sfirsthydraulicpress.Mediaworkin1905willbereplacedbyoil-waterandfurtherimproved.AftertheWorldWarI(1914-1918),becauseoftheextensiveapplicationofhydraulictransmission,especiallyafter1920,morerapiddevelopment.Hy
3、drauliccomponentsinthelate19thcenturyabouttheearly20thcentury,20years,onlystartedtoentertheformalphaseofindustrialproduction.1925Vickers(F.Vickers)theinventionofthepressurebalancedvanepump,hydrauliccomponentsforthemodernindustrialorhydraulictransmissionofthegradualestablis
4、hmentofthefoundation.Theearly20thcenturyG•Constantiascofluctuationsoftheenergycarriedoutbypassingtheoreticalandpracticalresearch;in1910onthehydraulictrans-mission(hydrauliccoupling,hydraulictorqueconverter,etc.)contributions,sothatthesetwoareasofdevelopment.TheSecondWorldW
5、ar(1941-1945)period,intheUnitedStates30%ofmachinetoolapplicationsinthehydraulictransmission.ItshouldbenotedthatthedevelopmentofhydraulictransmissioninJapanthanEuropeandtheUnitedStatesandothercountriesfornearly20yearslater.Beforeandafterin1955,therapiddevelopmentofJapan'shy
6、draulicdrive,setupin1956,"HydraulicIndustry."Nearly20to30years,thedevelopmentofJapan'sfasthydraulictransmission,aworldleader.HydraulictransmissionTherearemanyoutstandingadvantages,itiswidelyused,suchasgeneralindustrialuseofplasticsprocessingmachinery,thepressureofmachinery
7、,machinetools,etc.;operatingmachineryengineeringmachinery,constructionmachinery,agriculturalmachinery,automobiles,etc.;ironandsteelindustrymetallurgicalmachinery,liftingequipment,suchasrolleradjustmentdevice;civilwaterprojectswithfloodcontrolanddamgatedevices,bedliftsinsta
8、llations,bridgesandothermanipulationofinstitutions;speedturbinepowerplantinstallations,nu
