Ka'ida ta asali
Aikin yin famfo na jerin JRP Tushen ya gudana ta hanyar rotors masu siffa '8' guda biyu a cikin ɗaki mai jujjuyawar gaba. Tare da rabon tuƙi na 1: 1, rotors guda biyu suna rufe kansu koyaushe ba tare da touting juna da ɗakin ba. Matsalolin da ke tsakanin sassa masu motsi suna da kunkuntar isa don rufewa da gefen shaye-shaye da gefen ci a cikin kwararar gani da kwararar kwayoyin halitta, ta yadda za a cimma manufar tusa iskar gas a cikin dakin.
Lokacin da rotors ya gano a 1 da 2 a cikin ɗakin, ƙarar shigar da iska zai karu. Lokacin da rotors ya gano a 3 a cikin ɗakin, wani ɓangare na ƙarar iska za a toshe shi daga mashigar iska. Lokacin da rotors suka gano a 4, wannan ƙarar zai buɗe don buɗewa. Lokacin da rotors suka ci gaba, iska za ta fita ta hanyar iska. Rotors za su jujjuya fiye da coures biyu sau ɗaya kowane juyi.
Bambancin matsin lamba tsakanin gefen mashiga da gefen fita na famfun tushen yana iyakance. JRP jerin tushen famfo yana ɗaukar bawul ɗin kewayawa. Lokacin da ƙimar bambancin matsa lamba ya kai ga wani adadi, bawul ɗin kewayawa yana buɗewa ta atomatik.Wasu ƙarar iska daga gefen waje yana gudana zuwa ga jujjuya shugabanci na gefen mashiga ta hanyar bawul ɗin kewayawa da juyi nassi, wanda ke rage nauyin aiki na famfo na tushen da famfo gaba-mataki sosai a cikin yanayin babban matsin lamba. A halin yanzu, saboda aikin saukewa lokacin da bawul ɗin kewayawa ya buɗe, yana tabbatar da cewa JRP jerin injin famfo da famfo na gaba-gaba suna farawa a lokaci guda don guje wa nauyi ga duka biyun.
Tushen famfo dole ne a yi aiki a matsayin famfo naúrar tare da gaba-stage famfo (kamar juyawa vane famfo, zamewa bawu famfo da ruwa mai zobe famfo). Idan ana buƙatar isa zuwa digiri mafi girma, ana iya haɗa nau'ikan famfo na tushen guda biyu zuwa aiki azaman rukunin famfo tushen mataki uku.

Halaye
1. Akwai rashin jituwa tsakanin rotors, haka nan tsakanin rotor da famfo chamber, don haka babu bukatar man shafawa. Saboda haka, famfon namu zai iya guje wa gurɓatar mai a kan tsarin vacuum.
2. Tsarin tsari, kuma mai sauƙin shigarwa a kwance ko a tsaye.
3. Kyakkyawan ma'auni mai ƙarfi, tsayayyen gudu, ƙaramar girgiza da ƙaramar amo.
4. Zai iya fitar da iskar da ba ta da ƙarfi.
5. Saurin farawa kuma zai iya cimma matsa lamba a cikin ɗan gajeren lokaci.
6. Ƙananan wutar lantarki da ƙananan farashin kulawa.
7. Ƙimar kewayawa akan tushen famfo na iya jin daɗin tasirin kariya ta atomatik, don haka aikin zai kasance lafiya kuma abin dogara.

Matsakaicin aikace-aikace
1. injin bushewa da impregnation
2. vacuum degass
3. vacuum pre-fitarwa
4. gajiyar iskar gas
5. domin tafiyar matakai a cikin injin distillation, injin tattarawa da bushewa a cikin masana'antar sinadarai, magani, abinci da abin sha, masana'antar haske da masana'antar yadi