擴散噴(pen)射(she)泵(beng)(beng)：它(ta)(ta)是(shi)(shi)一種有(you)擴散泵(beng)(beng)特性的(de)(de)(de)(de)單(dan)級(ji)(ji)或(huo)多(duo)級(ji)(ji)噴(pen)嘴與(yu)具有(you)噴(pen)射(she)真(zhen)空(kong)泵(beng)(beng)特性的(de)(de)(de)(de)單(dan)級(ji)(ji)或(huo)多(duo)級(ji)(ji)噴(pen)嘴串聯組成的(de)(de)(de)(de)一種動量(liang)(liang)傳輸泵(beng)(beng)。油增壓泵(beng)(beng)即屬于這種形式(shi)。離子(zi)(zi)傳輸泵(beng)(beng)：它(ta)(ta)是(shi)(shi)將被(bei)電(dian)(dian)離的(de)(de)(de)(de)氣(qi)體(ti)(ti)(ti)在電(dian)(dian)磁(ci)場(chang)或(huo)電(dian)(dian)場(chang)的(de)(de)(de)(de)作(zuo)用下，輸送到(dao)出(chu)口(kou)的(de)(de)(de)(de)一種動量(liang)(liang)傳輸泵(beng)(beng)。氣(qi)體(ti)(ti)(ti)捕(bu)集(ji)泵(beng)(beng)這種泵(beng)(beng)是(shi)(shi)一種是(shi)(shi)氣(qi)體(ti)(ti)(ti)分子(zi)(zi)被(bei)吸(xi)(xi)附(fu)或(huo)凝(ning)結在泵(beng)(beng)的(de)(de)(de)(de)內(nei)(nei)表(biao)面(mian)上，從而減小了容器內(nei)(nei)的(de)(de)(de)(de)氣(qi)體(ti)(ti)(ti)分子(zi)(zi)數目而達到(dao)抽(chou)氣(qi)目的(de)(de)(de)(de)的(de)(de)(de)(de)真(zhen)空(kong)泵(beng)(beng)，有(you)以下幾種型式(shi)。吸(xi)(xi)附(fu)泵(beng)(beng)：它(ta)(ta)主要(yao)依(yi)靠具有(you)大(da)表(biao)面(mian)的(de)(de)(de)(de)吸(xi)(xi)附(fu)劑（如多(duo)孔物(wu)質）的(de)(de)(de)(de)物(wu)理吸(xi)(xi)附(fu)作(zuo)用來抽(chou)氣(qi)的(de)(de)(de)(de)一種捕(bu)集(ji)式(shi)真(zhen)空(kong)泵(beng)(beng)

真(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)不(bu)斷向高(gao)速(su)度(du)發展，由于滑片(pian)和(he)泵(beng)(beng)體的(de)(de)高(gao)速(su)摩擦(ca)使(shi)油(you)溫升(sheng)高(gao)，油(you)品很(hen)容易氧化(hua)(hua)分解，尤其擴散泵(beng)(beng)往往處于很(hen)高(gao)的(de)(de)溫度(du)環(huan)境下工(gong)作，使(shi)系統內蒸氣(qi)(qi)(qi)壓(ya)(ya)升(sheng)高(gao)，真(zhen)(zhen)(zhen)空(kong)(kong)(kong)度(du)降(jiang)低(di)，因此(ci)要(yao)求(qiu)(qiu)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)油(you)具有良好(hao)的(de)(de)熱氧化(hua)(hua)安定性(xing)。真(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)吸(xi)入(ru)的(de)(de)如果是腐蝕(shi)(shi)性(xing)氣(qi)(qi)(qi)體，會與油(you)發生化(hua)(hua)學反應，腐蝕(shi)(shi)泵(beng)(beng)內零件(jian)；吸(xi)入(ru)空(kong)(kong)(kong)氣(qi)(qi)(qi)中(zhong)往往含有水(shui)汽(qi)冷凝水(shui)，引起真(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)油(you)的(de)(de)乳(ru)化(hua)(hua)并(bing)使(shi)金(jin)屬腐蝕(shi)(shi)，所以要(yao)求(qiu)(qiu)具有良好(hao)的(de)(de)抗腐蝕(shi)(shi)和(he)抗乳(ru)化(hua)(hua)性(xing)。主要(yao)要(yao)求(qiu)(qiu)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)中(zhong)不(bu)攜(xie)帶輕質組(zu)分，以免(mian)影響油(you)品的(de)(de)飽和(he)蒸氣(qi)(qi)(qi)壓(ya)(ya)。極限壓(ya)(ya)力(li)是真(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)油(you)重要(yao)的(de)(de)使(shi)用性(xing)能指(zhi)標以了解在低(di)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)極限壓(ya)(ya)力(li)下真(zhen)(zhen)(zhen)空(kong)(kong)(kong)泵(beng)(beng)的(de)(de)極限壓(ya)(ya)力(li)。

旋片式真空泵(beng)( Sliding Vane Rotary Vacuum Pump )具有結構緊湊，體積小，重量輕，噪(zao)音低(di)，振(zhen)動小等優(you)點。所以，它適用于作擴(kuo)散泵(beng)的前級泵(beng)，而且更適用于精密儀器配套和(he)實驗室使用。例如：質譜儀器，冰箱流水線(xian)，真空冷凍干燥(zao)機等。

羅茨(ci)真空(kong)(kong)泵(beng)(beng)( Roots Vacuum Pump )是一種(zhong)旋轉式(shi)變容真空(kong)(kong)泵(beng)(beng)，須(xu)有前級泵(beng)(beng)配合方可使用(yong)在(zai)較寬的(de)壓力范(fan)圍內(nei)，有較大的(de)抽速，對被抽除(chu)氣體中含有灰(hui)塵和水蒸汽不敏感。廣(guang)泛用(yong)于(yu)冶金(jin)、化工、食品(pin)、電子鍍膜等行業。主(zhu)要用(yong)于(yu)真空(kong)(kong)機組的(de)主(zhu)泵(beng)(beng)，需要用(yong)前級泵(beng)(beng)輔(fu)助。如：水環(huan)式(shi)真空(kong)(kong)泵(beng)(beng)，滑閥(fa)真空(kong)(kong)泵(beng)(beng)，立式(shi)無油(you)真空(kong)(kong)泵(beng)(beng)，分(fen)子真空(kong)(kong)泵(beng)(beng)等。國(guo)內(nei)最大羅茨(ci)真空(kong)(kong)泵(beng)(beng)保(bao)持紀錄為20000L/S。