I-Saint-Gobain Seals' ye-OmniSeal yokuthintela ukuvuthela ngamandla entwasahlobo iye yaqinisekiswa njengetywina elimi kwishishini le-rocket yokukhangela iivalvu zerokethi.
I-valve yokutshekisha isixhobo sokulawula ukuhamba esivumela kuphela i-pressurized fluid (ulwelo okanye igesi) ukuba ihambe kwicala elinye. Kumsebenzi wesiqhelo, ivalve yokukhangela ikwindawo evaliweyo apho itywina likhuselwe ngetywina elimileyo elenzelwe ukumelana nakuphi na ukuvuthela. Emva kokuba uxinzelelo lwe-fluid lufike okanye lugqithise uxinzelelo olulinganisiweyo, i-valve ivula kwaye ivumela ulwelo ukuba lutshintshe ukusuka kwicala loxinzelelo oluphezulu ukuya kwicala eliphantsi loxinzelelo. Ukuhla koxinzelelo ngaphantsi koxinzelelo lwe-threshold kuya kubangela ukuba i-valve ibuyele kwindawo yayo evaliweyo. Iivalvu zokutshekisha zikwaxhaphakile kushishino lweoyile negesi, nakwiimpompo, ukusetyenzwa kweekhemikhali, kunye nezicelo zokudlulisa ulwelo.
Kwiimeko ezininzi, iinjineli zoyilo ziya kudibanisa iivalvu zokutshekisha kuyilo lwenjini yerokethi. Ke ngoko, indima yamatywina kwezi ndebe ibalulekile kulo lonke ubizo losungulo. Isitywina esinqanda ukuvuza sisetyenziswa kwivalve yokutshekisha ukugcina ulwelo olunoxinzelelo oluphezulu kwicala loxinzelelo oluphezulu ngelixa lukhusela isitywina ekutshizeni ngaphandle kwendlu. Kwimeko yoxinzelelo oluphezulu kunye nokutshintsha koxinzelelo olukhawulezayo kuwo wonke umphezulu wokutywina, kunzima kakhulu ukugcina itywina kwizindlu zayo. Nje ukuba indawo yokutywina eguquguqukayo ye-hardware ikhuphe kumlebe wokutywina, itywina linomkhwa wokuvuthelwa kude nendlu ngenxa yoxinzelelo olushiyekileyo olujikeleze itywina. Ngokuqhelekileyo, ii-valve zokutshekisha zisebenzisa izitywina zezihlalo (iibhloko ze-PTFE ezilula), kodwa ukusebenza kwezi zitywina akuhambelani, kwaye ngokuhamba kwexesha, izitywina zokuhlala ziya kuphazamiseka ngokusisigxina, okubangela ukuvuza.
Izitywina ezingqina ukuqhuma kweSaint-Gobain Seals zithathwe kulwakhiwo lwayo lwe-OmniSeal 103A kwaye luqulathe ijacket yepolymer ene-spring energizer. Igobolondo langaphandle lenziwe ngezinto eziphathekayo zeFluoroloy, ngelixa intwasahlobo yenziwe ngentsimbi engatyiwa kunye ne-Elgiloy®. Ngokweemeko zokusebenza kwe-valve yokutshekisha, inkqubo ekhethekileyo ingasetyenziselwa ukutshisa nokucoca intwasahlobo. Umfanekiso ongasekhohlo ubonisa umzekelo wokuthintela ukuvuthela okuqhelekileyo osetyenziswa yi-Saint-Gobain izitywina kwisicelo sentonga yokutywina (qaphela: lo mfanekiso wahlukile kwisitywina sangempela esisetyenziswe kwi-valve yokukhangela, eyilwe ngokwezifiso). Izitywina kwizicelo zevalve yokuhlola zinokusebenza kumaqondo aphantsi ukuya kuthi ga kwi-575 ° F (302 ° C) kwaye inokumelana noxinzelelo ukuya kuthi ga kwi-6,000 psi (414 bar).
Injongo ye-OmniSeal-proof-proof seals ye-rocket enjini yokukhangela iivalvu kukutywina igesi enoxinzelelo kunye nerhasi engamanzi kumaqondo obushushu angaphantsi -300°F (-184°C) ukuya kwi-122°F (50°C). Uxinzelelo lwetywina lusondele kwi-3,000 psi (207 bar). Imathiriyeli ye-Fluoroloy® sheath inokumelana okugqwesileyo kokunxiba, ukuxhathisa ukonakala, i-coefficient ephantsi ye-friction kunye nokusebenza kobushushu obuphantsi kakhulu. Iitywina ezichasene nokuvuza kwe-OmniSeal® ziyilelwe ukwenza amakhulu emijikelo yokusebenza ngaphandle kokuvuza.
Umgca wemveliso we-OmniSeal® uneendlela ezahlukeneyo zoyilo, ezifana ne-103A, i-APS, i-Spring Ring II, i-400A, i-RP II kunye ne-RACO™ 1100A, kunye neendlela ezahlukeneyo zokuyila. Olu luyilo lubandakanya imikhono eyahlukeneyo yokutywina ye-fluorine kunye nokwakheka okwahlukeneyo kwemithombo. Izisombululo zokutywinwa kweSaint-Gobain Seals zisetyenzisiwe ekuqalisweni kwezithuthi ezinjengeenjini zerokethi ze-Atlas V (ukwazisa iMars Rover Curiosity emajukujukwini), iirokethi zeDelta IV Heavy kunye neFalcon 9 rocket. Izisombululo zabo zikwasetyenziswa nakwamanye amashishini (oyile kunye negesi, iimoto, isayensi yobomi, i-elektroniki kunye neshishini), kunye nezixhobo zenkqubo yokudaya yemizi-mveliso ehambelana nokusingqongileyo, iimpompo zokutofa ngemichiza, esinye sezikhululo zokuqala zokucinezela igesi engaphantsi kolwandle kunye nabahlalutyi bemichiza. ukusetyenziswa kweklasi. .
Ixesha lokuposa: Feb-25-2021
