I-ZQYM-8320 I-Common Rail Diesel Fuel vp44 I-injection Pump Test Bench HEUI injector Test Equipment pump tester simulator

Ukusebenza kwenjini ye-diesel kuncike kakhulu ekulungisweni okunembayo kwephampu yomjovo kaphethiloli.Nakuba ibhentshi lokuhlola iphampu yomjovo kaphethiloli linezidingo zobuchwepheshe eziqinile zokuqinisekisa ukunemba kokulungiswa kwepharamitha yepompo yomjovo kaphethiloli, uma ukusetshenziswa nokunakekelwa kungenziwanga kahle, ikhwalithi yokulungisa iphutha yepompo yomjovo kaphethiloli ayinakuqinisekiswa.

1 Izidingo zobuchwepheshe zebhentshi lokuhlola iphampu yomjovo kaphethiloli
(1) Iphutha lesikali lebhentshi lokuhlola akufanele lidlule ku-±10' kunoma iyiphi indawo, futhi isikali kufanele sicace.
(2) Ukushintshashintsha kwesivinini esisheshayo ngaphakathi kwenguquko ngayinye ye-shaft ephumayo yebhentshi lokuhlola ngeke kudlule i-1% yesivinini sokuhlola lapho isivinini esilinganisiwe se-disc yokudlulisa shaft okukhiphayo si> 600 r/min;uma isivinini singu-≤ 600 r/min, ukushintshashintsha kwesivinini esisheshayo akumele kube ngaphezu kuka-6 r/min.
(3) Indlela yokubala yebhentshi lokuhlola kufanele inembile futhi izwele, futhi ingabala izikhathi eziyi-100 kuya kweziyi-1000 egiyeni ngalinye, futhi iphutha lokubala elivumelekile lalo lonke uhlelo isikhathi esingu-1.
(4) Isilinda sokulinganisa uwoyela sebhentshi lokuhlola kufanele sibe nesilinganiso esicacile nesinembile, isilinganiso esincane akufanele sibe sikhulu kuno-1% wesilinganiso esigcwele, futhi iphutha lesikali kufanele libe phakathi kuka-0.5% wesilinganiso esigcwele.
(5) Umfutho wokunikezwa kukawoyela webhentshi lokuhlola kufanele ulungiseke futhi ugcinwe uzinzile.Ngesivinini esilinganisiwe, lapho izitolo zivaliwe zonke, ukucindezela okukhulu kufanele kufinyelele: isifunda samafutha aphansi ≥ 0.4 MPa;high-pressure oil circuit ≥ 34 MPa.
(6) Amapharamitha wepayipi likaphethiloli elinomfutho ophezulu wokulungisa iphutha lephampu yomjovo kaphethiloli esemgqeni: ubude×idayamitha yangaphandle×ububanzi bangaphakathi, obungu-600 mm×6 mm×2 mm obusetshenziselwa ukulungisa iphutha iphampu yomjovo kaphethiloli ophethiloli wayo ojikelezayo. umthamo wokuhlinzeka awudluli ku-300 mm 3;I-800 mmx8 mmx39 mm isetshenziselwa ukuthunyelwa kwamaphampu omjovo kaphethiloli ngokuhanjiswa kukawoyela ojikelezayo okungaphezu kuka-300 mm;I-800 mm×6 mm×2 mm isetshenziselwa ukuthunyelwa kwamaphampu omjovo kaphethiloli asabalalisiwe.
(7) Umjovo kaphethiloli ojwayelekile okhethwe ibhentshi lokuhlola ungasetshenziswa ukuhlinzeka uwoyela ongekho ngaphezu kwama-300 mm3 umjikelezo ngamunye.Lapho ijubane lephampu yokujova uphethiloli liyi-1000 r/min, induku yegiya yokunikezela uwoyela imiswa endaweni yomjikelezo we-103 mm3.Izikhathi eziyi-1000 ipompo Lapho umthamo wamafutha usebangeni le-102-103 cm3, ukucindezela kokuvula kwe-valve yenaliti kungu-17.5 MPa.
(8) Uma usebenzisa iphampu yomjovo kaphethiloli, ngenxa yomkhawulo wekhwalithi yokusetshenziswa, umjovo kaphethiloli olungisiwe wemoto yokuqala kufanele usetshenziselwe ukuhlola iphampu yomjovo kaphethiloli.Ngale ndlela, injini ingaqinisekiswa ukuthi isebenza ngaphansi kokuhlinzekwa kwamafutha okujwayelekile kanye okufanayo kusukela ekuqaleni kuze kube yilapho umhlangano we-fuel injector ushintshwa.Uma isijojo sikaphethiloli esijwayelekile sisetshenziselwa ukulungisa iphutha, futhi injini isebenza nesijojo sikaphethiloli esingajwayelekile, ayikwazi ukusebenza ngokufana okudingekayo kokunikezwa kukaphethiloli, ngaleyo ndlela ilahlekelwe ukubaluleka kokulungisa iphutha lepompo lomjovo kaphethiloli.
(9) Izinga lokushisa legumbi lokuhlola linomthelela omkhulu ekuhlinzekweni kukaphethiloli kwephampu yomjovo kaphethiloli, ngoba izinga likawoyela udizili liyashintsha nezinga lokushisa, kanye nokunikezwa kukaphethiloli okujwayelekile okushiwo emibhalweni yobuchwepheshe kubhekiselwa ekushiseni okujwayelekile kwegumbi. ngo-20 ℃.Ukunikezwa kwamafutha.Ukuhlolwa kuye kwafakazela ukuthi lapho izinga lokushisa lehla lisuka ku-40 ° C liye ku-6 ° C, ukunikezwa kukaphethiloli kungakhula ngo-20% kuya ku-40%, futhi uma izinga lokushisa liphinde lehliswa, ukumelana kwepayipi likawoyela elinomfutho ophezulu kanye nomjovo. izokwenyuka kakhulu ngenxa yokwanda okukhulu kwezinga lamafutha edizili , ukunikezwa kukaphethiloli kuzokwehla kunalokho.Ukuze ulungise ukunikezwa kukaphethiloli ngokunembile, izinga lokushisa leshabhu yokuhlola kufanele ligcinwe ebangeni lokushisa elivamile lika-15-20°C, ikakhulukazi iphampu yomjovo kaphethiloli enesivinini esikhulu izwela kakhulu ekushintsheni kwezinga lokushisa likaphethiloli.