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What are the different types of vacuum pumps

A vacuum pump is a device that employs an enclosed volume to pull gas molecules together in order to create a vacuum.

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What are the different types of vacuum pumps

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  1. WHAT ARE THE DIFFERENT TYPES OF VACUUM PUMPS? 1. "Rotary vane vacuum pump" Therotaryvacuumpumpusesarevolvingcylindertopullgasmoleculesclosertogether, creatingvacuum. Therotatingmovementofthecylindercreatesvacuumbypullinggasmoleculesclosertogetherusing centrifugalforce. Asthevacuumincreases, atmosphericpressureovercomesthiscentrifugalforce, at whichpointthevacuumprocessstops. 2. "Diaphragm vacuum pump" Thediaphragmvacuumpumpactsasabellowstopullgasmoleculesclosertogether, hencecreating vacuum. Thisvacuumisachievedbytheexpansionofthepump'schamberthatiscreatedwhenanobject attachedtoitsdiaphragmseparatesairintotwovolumes: onesideofthepumpchamberwillbevacuum andtheotherair. 3. "Oil rotary vacuum pump" Theoilrotaryvacuumpumpusesacurvedrotorthatoperatesathighspeedtopullgasmoleculescloser together, hencecreatingvacuum. Thisvacuumisachievedbyrotatingthecurvedrotorwithanattached shaftwithinavacuumchamber. Thevacuumiscreatedbytheair'scentripetalforcepullinggasmolecules closertogetheruntilvacuumequilibriumisreached.

  2. 4. "Diffusion vacuum pump" Thediffusionvacuumpumpusesahigh-temperaturefilamenttocreateavacuum, whichthenpulls surroundinggasmoleculesclosertogether, hencecreatingvacuum. Thisvacuumisachievedbydrawing gasmoleculestothevacuumchamber'sheatedfilament. Asvacuumincreases, gasmoleculesaredrawn closertogetheruntilequilibriumisreachedwithinthevacuumchamber. 5. "Reciprocating vacuum pump" Thereciprocatingvacuumpumpusesapistonconnectedtoametallicrodwithoneendexposedto atmosphericpressureandanotherendexposedtovacuumpressure. Asvacuumincreases, gasmolecules arepulledclosertogetheruntilequilibriumisreachedwithinthevacuumchamber. 6. "Sputter-ion pump" Thesputterionpumpalsousesahigh-temperaturefilament, justlikethediffusionvacuumpump, buthas morecomponentsthatseparatethevacuumchamberintoseveralvacuumchamberswithrespective vacuumlevels. Thisvacuumpumpisusedinvacuumdepositionsystemsthatincludevacuumchambers withdifferentvacuumlevelstodepositsubstancesatalowervacuumlevelthanthesourcematerial's vacuumlevel. 7. "Mechanical booster and backing pumps" Themechanicalboosterandbackingpumpsuseapistonordisplacementpumptocreatevacuumby drawinggasmoleculesclosertogether, hencecreatingvacuum. Thevacuumusedbythemechanical boosterandbackingpumpsarenotproducedmechanicallybutbythevacuumoilintheirrespective vacuumchambers. 8. "Gauge vacuum pump" Themechanicaldifferentialvacuumpumpusesanincreasedpressureononesideofadiaphragmtopull gasmoleculesclosertogether, hencecreatingvacuum. Thisvacuumlevelismeasuredagainst atmosphericpressureonthediaphragm'sotherside, hencethename 'differentialvacuumpump.' 9. "Dry vacuum pumps" Thedryvacuumpumpusesametalorceramicpistonandcylinderwithinavacuumchambertocreate vacuumbypullinggasmoleculesclosertogether, hencecreatingvacuum. Thisvacuumisachievedby creatingvacuumbetweenthevacuumchamber'smetalorceramicpistonandcylinder. https://www.west-technology.co.uk/vacuum/sales/vacuum-pumps/reconditioned-pumps/

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