BMW M52TUB20, M52TUB25, M52TUB28 injini

Zamkatimu

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Mndandanda wa M52 ndi injini zamafuta za BMW zokhala ndi masinthidwe am'munsi a masilinda 6 ndi ma camshaft awiri (DOHC).

Zinapangidwa kuchokera ku 1994 mpaka 2000, koma mu 1998 panali "zosintha zamakono" (zosinthika zamakono), zomwe zida zapawiri za VANOS zinayambitsidwa ndi zitsanzo zomwe zilipo kale, zomwe zimayendetsa nthawi ya ma valve otulutsa mpweya (machitidwe ogawa gasi awiri). Pa mndandanda wa injini zabwino kwambiri 10 Ward mu 1997, 1998,1999, 2000 ndi 52, MXNUMX nthawi zonse anaonekera ndipo sanasiye maudindo awo.

Injini za mndandanda M52 analandira chipika zotayidwa yamphamvu, mosiyana M50, amene anapangidwa ndi chitsulo chosungunula. Ku North America, magalimoto anali kugulitsidwabe ndi ma injini awa mu block yachitsulo. Liwiro lapamwamba ndi 6000 rpm, ndipo voliyumu yayikulu kwambiri ndi malita 2.8.

Ponena za kusinthika kwaukadaulo kwa 1998, pali zosintha zinayi:

Vanos vavu nthawi dongosolo, amene tidzakambirana mwatsatanetsatane kenako;
Electronic throttle control;
Vavu Yolowetsa ya Geometry (DISA) yamitundu iwiri;
Zopangiranso ma cylinder liners.

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Ichi ndi M52B20 yosinthidwa, yomwe, chifukwa cha zosinthika zomwe zalandilidwa, monga zina ziwirizo, zimakhala ndi mphamvu zambiri pazitsulo zotsika (nsonga zapamwamba ndi 700 rpm m'munsi). Silinda yoboola ndi 80mm, sitiroko ya pisitoni ndi 66mm, ndipo kupsinjika ndi 11: 1. Buku la 1991 cm, mphamvu 150 hp pa 5900 rpm - kupitiriza kwa mibadwo mu makhalidwe amenewa ndi noticeable. Komabe, makokedwe ndi 190 N * m, ngati M52V20, koma 3500 rpm.

Amagwiritsidwa ntchito pamagalimoto:

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

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Sitiroko ya pisitoni ndi 75 mm, m'mimba mwake ndi 84 mm. choyambirira B25 2.5-lita chitsanzo kuposa kuloŵedwa m'malo mphamvu - 168 HP. pa 5500 rpm. Mtundu wosinthidwa, wokhala ndi mphamvu zofananira, umapanga 245 N * m yemweyo pa 3500 rpm, pomwe B25 idawafikira pa 4500 rpm.

Amagwiritsidwa ntchito pamagalimoto:

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

Sakanizani:

Kusamuka kwa injini ndi 2.8 malita, pisitoni sitiroko ndi 84 mm, yamphamvu m'mimba mwake 84 mm, crankshaft ali ndi sitiroko kuwonjezeka poyerekeza B25. Kupanikizika kwapakati 10.2, mphamvu 198 hp pa 5500 rpm, makokedwe - 280 N * m / 3500 rpm.

Mavuto ndi zovuta za mtundu wa ICE nthawi zambiri zimakhala zofanana ndi M52B25. Pamwamba pa mndandanda, ali ndi kutentha kwakukulu, komwe nthawi zambiri kumayambitsa kusokonezeka kwa njira yogawa gasi. Njira yothetsera kutentha kwambiri nthawi zambiri ndikuyeretsa radiator, kuyang'ana mpope, thermostat, kapu ya radiator. Vuto lachiwiri ndikugwiritsa ntchito mafuta mopitilira muyeso. Mu BMW, izi ndizovuta, zomwe zimagwirizanitsidwa ndi mphete za pistoni zosavala zosavala. Popanda chitukuko pamakoma a ma cylinders, mphetezo zikhoza kusinthidwa ndipo mafuta sangapitirire zomwe zimaperekedwa. Zonyamula ma hydraulic pa injini izi "zimakonda" ku coke, zomwe zimabweretsa kusokoneza.

M52tuB28

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Amagwiritsidwa ntchito pamagalimoto:

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

Dongosolo la VANOS limakhudzidwa kwambiri ndi magwiridwe antchito a injini ndipo pakachitika zosintha zosakhazikika, magwiridwe antchito osagwirizana nthawi zonse kapena kugwa kwamphamvu, amatopa kwambiri. Kuti muthetse, muyenera kukhala ndi zida zokonzera dongosolo.

Zosadalirika za crankshaft ndi camshaft position sensors nthawi zambiri zimapangitsa injini kuti isayambe, ngakhale kunja zonse zili bwino. Thermostat imakonda kutsika, ndipo nthawi zambiri gwero lake ndi lotsika kuposa la M50.

Mwa ubwino, tingadziŵike kuti injini atatuwa si makamaka tcheru khalidwe la mafuta. Kuzikonza nthawi zambiri sikuvomerezeka, komanso kugula zosinthana, popeza ndi zakale chabe. Komabe, kwa iwo amene amalimbikira mu chikhumbo chawo, pali njira yotsimikiziridwa - kukhazikitsa kudya kochuluka M50B25, camshafts kuchokera ku S52B32 ndi chip ikukonzekera. Kukonzekera kotereku kumakweza mphamvu mpaka 250 hp. Njira ina yodziwikiratu ndi yotopetsa mpaka malita 3, limodzi ndi kugula crankshaft M54B30 ndi kudula pisitoni ndi 1.6 mm.

Kuyika turbine pa injini iliyonse yomwe yafotokozedwa ndi njira yokwanira yowonjezerera mphamvu. Mwachitsanzo, M52B28 yokhala ndi turbine ya Garrett komanso purosesa yabwino idzatulutsa pafupifupi 400 hp. ndi gulu la stock piston.

Njira zosinthira za M52V25 ndizosiyana. Apa m'pofunika kugula, kuwonjezera pa kudya kangapo kwa "m'bale" M50V25, komanso crankshaft ndi ndodo kulumikiza M52V28, komanso fimuweya. Camshafts ndi dongosolo utsi ndi bwino kuika ndiye S62 - popanda iwo, izo sizidzagwedezeka pamene ikukonzekera. Chifukwa chake, ndi voliyumu ya 2 malita, mupeza zoposa 200 hp.

Kukweza mphamvu pa injini yaing'ono 2-lita, mudzafunika bore mpaka malita 2.6 kapena turbine. Wotopa ndi kuyimba, azitha kupereka 200 hp. Turbocharged mothandizidwa ndi zida zapadera za turbo pamapeto pake azitha kufinya 250 hp. pa 2 malita a voliyumu yogwira ntchito. Garrett kit ikhoza kusinthidwa ndi Lysholm, yomwe idzaperekanso mphamvu zowonjezera mkati mwa malire omwewo.