BMW M52TUB20, M52TUB25, M52TUB28 izinjini

Okuqukethwe

I-M52TUB20
I-M52TUB25
I-M52TUB28

Uchungechunge lwe-M52 izinjini zikaphethiloli ze-BMW ezinokucushwa kwe-in-line kwamasilinda angu-6 nama-camshaft amabili (DOHC).

Zazikhiqizwa kusukela ngo-1994 kuya ku-2000, kodwa ngo-1998 kwakukhona "ukubuyekezwa kobuchwepheshe" (ukubuyekezwa kobuchwepheshe), lapho uhlelo olubili lwe-VANOS lwethulwa khona kumamodeli akhona, alawula isikhathi se-valve yokukhipha (isistimu yokusabalalisa igesi kabili). Ezinhlwini zezinjini ezingcono kakhulu ze-10 Ward ngo-1997, 1998,1999, 2000 no-52, i-MXNUMX yayivela njalo futhi ayizange ilahle izikhundla zabo.

Izinjini zochungechunge lwe-M52 zathola i-aluminium cylinder block, ngokungafani ne-M50, eyakhiwe ngensimbi ekhonjiwe. ENyakatho Melika, izimoto zazisadayiswa nalezi zinjini ebhodini lensimbi. Isivinini esiphezulu singu-6000 rpm, futhi ivolumu enkulu ingu-2.8 amalitha.

Uma sikhuluma ngesibuyekezo sobuchwepheshe sango-1998, kunentuthuko enkulu emine:

Isistimu yesikhathi ye-Vanos valve, okuzoxoxwa ngayo ngokuningiliziwe kamuva;
Ukulawulwa kwe-throttle ye-elekthronikhi;
Ivalvu Yokungena Okuguquguqukayo Yejiyomethri Ephindwe kabili (DISA);
Ama-cylinder liners aklanywe kabusha.

I-M52TUB20

Lena i-M52B20 eguquliwe, okuthi, ngenxa yentuthuko etholiwe, njengamanye amabili, ibe nokudonsa okwengeziwe kuma-revs aphansi (i-torque ephezulu i-700 rpm ephansi). I-cylinder bore ingu-80mm, i-piston stroke ingu-66mm, futhi ukucindezelwa ngu-11:1. Umqulu 1991 cu. cm, amandla 150 hp ngo-5900 rpm - ukuqhubeka kwezizukulwane kulezi zici kuyabonakala. Nokho, torque 190 N * m, efana M52V20, kodwa 3500 rpm.

Isetshenziswa ezimotweni:

BMW E36 / 7 Z3 2.0i
1998-2001 BMW 320i/320Ci (E46 body)
1998-2001 BMW 520i (E39 body)

I-M52TUB25

I-piston stroke ingu-75 mm, ububanzi be-cylinder buyi-84 mm. Imodeli yasekuqaleni B25 2.5-litre idlula eyandulela yayo ngamandla - 168 hp. ngo-5500 rpm. Inguqulo eguquliwe, enezici ezifanayo zamandla, ikhiqiza i-245 N * m efanayo ku-3500 rpm, kuyilapho i-B25 ifinyelela kubo ngo-4500 rpm.

Isetshenziswa ezimotweni:

1998-2000 E46323i, 323ci, 325i
1998-2000 E39523 XNUMXi
1998-2000 E36/7Z3 2.3i

I-M52TUB28

Ukususwa kwenjini kungu-2.8 amalitha, i-piston stroke ingu-84 mm, ububanzi besilinda 84 mm, i-crankshaft ine-stroke eyandayo uma iqhathaniswa ne-B25. Ukucindezela isilinganiso 10.2, amandla 198 hp ngo-5500 rpm, i-torque - 280 N * m / 3500 rpm.

Izinkinga nezinkinga zale modeli ye-ICE ngokuvamile zifana ne-M52B25. Phezulu ohlwini, unokushisa ngokweqile, okuvame ukuholela ekungasebenzi kahle kwendlela yokusabalalisa igesi. Isixazululo sokushisa ngokweqile ngokuvamile sihlanza i-radiator, ukuhlola iphampu, i-thermostat, i-radiator cap. Inkinga yesibili ukusetshenziswa kukawoyela okungaphezu kokujwayelekile. Ku-BMW, lokhu, empeleni, kuyinkinga evamile, ehlotshaniswa nezindandatho ze-piston ezingagqoki. Uma kungabikho ukuthuthukiswa ezindongeni zamasilinda, izindandatho zingamane zishintshwe futhi amafutha ngeke ashiye okungaphezu kokunqunyiwe. Ama-hydraulic lifter kulezi zinjini "athanda" i-coke, okuholela ekudubuleni.

M52tuB28

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Isetshenziswa ezimotweni:

1995-1999 E36328 328i, XNUMXis
1995-1998 E39528 XNUMXi
1995-1998 E38728 728i, XNUMXiL
1997-1998 E36/7Z3 2.8

Uhlelo lwe-VANOS luzwela kakhulu ekusebenzeni kwenjini futhi uma kwenzeka izinguquko ezingazinzile, ukusebenza okungalingani ngokujwayelekile noma ukwehla kwamandla, kuguga kakhulu. Ukuze uyixazulule, udinga ukuba nekhithi yokulungisa isistimu.

I-crankshaft engathembekile nezinzwa zokuma kwe-camshaft ngokuvamile zibangela ukuthi injini ingaqali, nakuba ngaphandle konke kuhamba kahle. I-thermostat ivamise ukuvuza, futhi ngokuvamile insiza iphansi kunaleyo ye-M50.

Kwezinzuzo, kungaphawulwa ukuthi lezi zinjini ezintathu azizwela kakhulu izinga likaphethiloli. Ukuwashuna ngokuvamile akunconywa, kanye nokuthenga ukushintshanisa, ngoba kakade asekhulile. Nokho, kulabo abaphikelelayo esifisweni sabo, kukhona indlela efakazelwe - ukufaka M50B25 eningi, camshafts kusuka S52B32 kanye chip Tuning. Ukushuna okunjalo kuzokhuphula amandla afinyelele ku-250 hp. Enye inketho esobala iyisicefe kufika ku-3 amalitha, ehambisana nokuthengwa kwe-crankshaft ye-M54B30 nokusika i-piston ngo-1.6 mm.

Ukufaka i-turbine kunoma iyiphi yezinjini ezichaziwe kuyindlela eyanele ngokuphelele yokwandisa amandla. Isibonelo, i-M52B28 ene-Garrett turbine kanye nokusethwa okuhle kweprosesa izokhiqiza cishe i-400 hp. neqembu le-stock piston.

Izindlela zokuhlela ze-M52V25 zihlukile. Lapha kuyadingeka ukuthenga, ngaphezu kokutholakala okuningi okuvela ku-"brother" M50V25, futhi i-crankshaft enezintambo zokuxhuma i-M52V28, kanye ne-firmware. Ama-Camshafts kanye nesistimu yokukhipha amandla kungcono ukubeka i-S62 - ngaphandle kwabo, ngeke inyakaze lapho ilungiswa. Ngakho-ke, ngevolumu yamalitha angu-2, uzothola ngaphezu kuka-200 hp.

Ukuze ukhulise amandla enjini encane kunazo zonke engu-2 litre, uzodinga ibhore ukuya ku-2.6 amalitha noma i-turbine. Enesithukuthezi futhi ecushiwe, uzokwazi ukukhipha i-200 hp. I-Turbocharged ngosizo lwekhithi ye-turbo ekhethekile ekugcineni izokwazi ukukhama i-250 hp. ngamalitha ama-2 wevolumu yokusebenza. Ikhithi ye-Garrett ingashintshwa yi-Lysholm, ezophinde inikeze ukwanda kwamandla ngaphakathi kwemingcele efanayo.