I-ZQYM-8320 i-Common Rail Diesel Fuel vp44 I-injection Pump Test Ibhentshi ye-HEUI yesitofu soVavanyo lweSixhobo sempompo somvavanyi

Ukusebenza kwe-injini ye-diesel kuxhomekeke kakhulu kuhlengahlengiso oluchanekileyo lwempompo yokutofa kwamafutha. Nangona ibhentshi yokuvavanya ipompo yokujova i-fuel ineemfuno zobugcisa ezingqongqo zokuqinisekisa ukuchaneka kweparameter ye-injection ye-fuel injection parameter, ukuba ukusetyenziswa kunye nokugcinwa kungenziwanga ngokufanelekileyo, umgangatho wokulungiswa kwempompo ye-fuel injection ayinakuqinisekiswa.

1 Iimfuno zobugcisa bebhentshi yokuvavanya impompo yokutofa kwamafutha
(1) Impazamo yesikali yebhentshi yokuvavanya akufanele idlule ± 10' kuyo nayiphi na indawo, kwaye isikali kufuneka sicace.
(2) Ukutshintshwa kwesantya ngokukhawuleza kwi-revolution nganye ye-shaft ye-output ye-bench yokuvavanya akuyi kudlula i-1% yesantya sokuvavanya xa isantya esilinganisiweyo se-disc yokuhanjiswa kwe-shaft i-> 600 r / min; xa isantya singu-≤ 600 r / min, ukuguqulwa kwesantya ngokukhawuleza kuya kuba ngaphezu kwe-6 r / min.
(3) Indlela yokubala yebhentshi yovavanyo kufuneka ichaneke kwaye ibe novakalelo, kwaye inokubala amaxesha angama-100 ukuya kwali-1000 kwigiya nganye, kwaye impazamo yokubala evumelekileyo yenkqubo yonke lixesha eli-1.
(4) I-cylinder yokulinganisa ioli yebhentshi yokuvavanya kufuneka ibe nesikali esicacileyo nesichanekileyo, ubuncinci bomlinganiselo akufanele ube mkhulu kune-1% yesikali esipheleleyo, kwaye impazamo yesikali kufuneka ibe ngaphakathi kwe-0.5% yesikali esipheleleyo.
(5) Uxinzelelo lweoyile yebhentshi yovavanyo kufuneka luhlengahlengiswe kwaye lugcinwe luzinzile. Ngesantya esilinganisiweyo, xa iivenkile zivaliwe zonke, uxinzelelo oluphezulu kufuneka lufikelele: i-low-pressure oil circuit ≥ 0.4 MPa; isekethe yeoli ephezulu yoxinzelelo ≥ 34 MPa.
(6) Iiparamitha zombhobho wepetroli woxinzelelo oluphezulu lokulungisa impompo yesitofu se-in-line: ubude × i-diameter yangaphandle × i-diameter yangaphakathi, apho i-600 mm × 6 mm × 2 mm isetyenziselwa ukulungisa impompo yesitofu samafutha esibaso esijikelezayo. umthamo wokubonelela awudluli kwi-300 mm 3; I-800 mm × 8 mm×39 mm isetyenziselwa ukugunyazisa iimpompo zenaliti yepetroli kunye nonikezelo lweoyile ejikelezayo ngaphaya kwe-300 mm; I-800 mm × 6 mm × 2 mm isetyenziselwa ukugunyazisa iimpompo zesitofu esisasazwayo.
(7) I-injector ye-fuel esemgangathweni ekhethwe yibhentshi yokuvavanya ingasetyenziselwa ukubonelela nge-oyile engekho ngaphezu kwe-300 mm3 ngomjikelo ngamnye. Xa isantya sempompo ye-fuel injection yi-1000 r / min, intonga yokubonelela nge-oyile igxininiswe kwindawo ye-103 mm3 umjikelezo. Amaxesha angama-1000 epompo Xa umthamo weoli ukwinqanaba le-102-103 cm3, uxinzelelo lokuvula i-valve inaliti yi-17.5 MPa.
(8) Kwimpompo yokutofa kwamafutha esetyenziswayo, ngenxa yokuthintelwa komgangatho wokusetyenziswa, isitofu esilungisiweyo sesitofu sesithuthi sokuqala kufuneka sisetyenziselwe uvavanyo lwempompo yesibaso. Ngale ndlela, i-injini inokuqinisekiswa ukuba isebenze phantsi kwe-oyile eqhelekileyo kunye neyomfaniswano ukusuka ekuqaleni de indibano ye-injector ye-fuel ithathelwe indawo. Ukuba i-injector ye-fuel esemgangathweni isetyenziselwa ukulungisa ingxaki, kwaye injini isebenza nge-injector ye-fuel non-standard, ayikwazi ukusebenza ngokufana okufunekayo kokunikezelwa kwamafutha, ngaloo ndlela ilahlekelwa ukubaluleka kwempompo ye-injection ye-fuel debugging.
(9) Ubushushu begumbi lovavanyo lunempembelelo enkulu kunikezelo lwamafutha lwempompo yokutofa ngamafutha, kuba iqondo le-oyile ye-diesel liyatshintsha kunye nobushushu, kunye nonikezelo lwamafutha oluqhelekileyo oluchazwe kumaxwebhu obugcisa lubhekiselele kubushushu obuqhelekileyo begumbi. ye 20 ℃. Unikezelo lwamafutha. Uvavanyo luye lwabonisa ukuba xa ubushushu behla ukusuka kwi-40 ° C ukuya kwi-6 ° C, ukunikezelwa kwepetroli kunokunyuka ngo-20% ukuya kwi-40%, kwaye ukuba iqondo lokushisa liyancipha ngakumbi, ukuchasana kombhobho weoli ophezulu kunye ne-injector. iya kunyuka ngokukhawuleza ngenxa yokunyuka okukhulu kwinqanaba leoli ye-diesel, ukunikezelwa kwamafutha kuya kuncipha endaweni yoko. Ukuze ulungelelanise ukunikezelwa kwamafutha ngokuchanekileyo, ukushisa kwendawo yokusebenzela yokuvavanya kufuneka kugcinwe kwiqondo lokushisa eliqhelekileyo le-15-20 ° C, ngakumbi ipompo ye-injection ye-fuel-speed-speed i-fuel-speed i-injection ngakumbi ekutshintsheni ukushisa kwamafutha.