Enjine ea BMW M20
Tse ka hare
The BMW M20 enjene letoto la lihlooho tse ke in-line tse tšeletseng silindara single-camshaft peterole powertrain. Tlhahiso ea pele ea letoto lena e qalile ka 1977 'me mohlala oa ho qetela o ile oa theoha mohala oa kopano ka 1993. Mehlala ea pele eo lienjineri tsa letoto lena li sebelisitsoeng ho tsona e ne e le E12 520/6 le E21 320/6. Bonyane ba bona ba ho sebetsa ke lilithara tse 2.0, athe mofuta o moholo le oa morao-rao o ne o na le lilithara tse 2.7. Ka mor'a moo, M20 e ile ea e-ba motheo oa ho thehoa ha enjene ea disele ea M21.
Ho tloha ka bo-1970, ka lebaka la tlhokahalo e ntseng e eketseha ea bareki, BMW e hloka lienjineri tse ncha bakeng sa letoto la mehlala ea 3 le 5, e neng e tla ba nyane ho feta letoto la M30 le seng le ntse le le teng, leha ho le joalo, ha e ntse e boloka tlhophiso ea li-cylinder tse tšeletseng. Sephetho e bile ea 2-litre M20, e ntseng e le nyane ka ho fetisisa inline- six ho tloha BMW. Ka meqolo e tsoang ho 1991 cubic metres. bona ho fihlela ho 2693 cu. bona Motors tsena li ne li sebelisoa ka dikai E12, E28, E34 5 letoto la lihlooho tse, E21 le E30 3 letoto la lihlooho tse.
Likarolo tse ikhethang tsa M20 ho tloha M30 ke:
- Lebanta la nako sebakeng sa ketane;
- Bophara ba cylinder 91 mm sebakeng sa 100 mm;
- Sekhahla sa tšekamelo ke likhato tse 20 sebakeng sa 30, joalo ka M30.
Hape, M20 e na le cylinder block ea tšepe, hlooho ea aluminium block, camshaft e le 'ngoe e nang le li-valve tse peli ka silindara.
M20V20
Ena ke mohlala oa pele oa letoto lena mme e sebelisitsoe likoloing tse peli: E12 520/6 le E21 320/6. Bophara ba cylinder ke 80 mm le piston stroke ke 66 mm. Qalong, carburetor ea Solex 4A1 e nang le likamore tse 'nè e ne e sebelisetsoa ho etsa motsoako le ho o fepa ka cylinder. Ka tsamaiso ena, tekanyo ea khatello ea 9.2: 1 e ile ea finyelloa 'me lebelo le holimo e ne e le 6400 rpm. Mechini ea pele e 320 e ne e sebelisa lifenehi tsa motlakase bakeng sa ho pholisa, empa ho tloha ka 1979 ba ile ba qala ho sebelisa fene e nang le motsoako o futhumatsang.
Ka 1981, M20V20 e ile ea kenngoa ka ente, ka mor'a ho fumana tsamaiso ea Bosh K-Jetronic. Ho tloha ka 1981, meno a chitja a 'nile a sebelisoa hape lebantang la camshaft ho felisa ho lla ha enjene e ntse e sebetsa. Khatello ea enjene ea ente e ile ea eketseha ho 9.9: 1, boleng ba lebelo le phahameng la ho potoloha bo theohile ho 6200 rpm le tsamaiso ea LE-Jetronic. Bakeng sa mohlala oa E30, enjene e ntlafalitse ho nkela hlooho ea cylinder sebaka, sebaka se bobebe le mefuta e mecha e ikamahanyang le sistimi ea LE-Jetronic (M20B20LE). Ka 1987, lekhetlo la bobeli le la ho qetela ho M20V20 ho ile ha kenngoa thepa e ncha ea mafura le lisebelisoa tsa ente, Bosh Motronic, eo compression e leng 8.8: 1.
Matla a motlakase a tloha ho 121 ho isa ho 127 hp. ka lebelo ho tloha 5800 ho 6000 rpm, torque e fapana ho tloha 160 ho ea ho 174 N * m.
se sebedisoang ho mehlala
- 1976–1981 E12 520/6 (карбюратор)
- 1977–1982 E21 320/6 (карбюратор)
- 1981–1982 E28 520i
- 1982–1984 E28 520i
- 1982–1984 E30 320i
- 1984–1987 E28 520i
- 1984–1987 E30 320i
- 1986–1987 E28 520i
- 1987–1992 E30 320i
- 1988–1990 E34 520i
M20B20kat ke mofuta o ntlafalitsoeng oa M20B20 e etselitsoeng BMW 5 Series mme e na le likarolo tse ngata. Ntho ea pele e fapaneng haholo ke ho ba teng ha tsamaiso ea Bosh Motronic le converter ea catalytic e neng e le ncha ka nako eo, e fokotsang chefo ea mesi e hlahisoang ke enjene.
M20B23
Likhoeli tse tšeletseng ka mor'a ho qalisoa ha tlhahiso ea M20V20 ea pele ka 1977, tlhahiso ea ente (ente ea ported) M20V23 e qalile. Bakeng sa tlhahiso ea eona, hlooho e tšoanang ea block e ne e sebelisoa bakeng sa carburetor M20V20, empa ka crank e atolositsoeng ho 76.8 mm. Bophara ba silinda e ntse e le 80 mm. Sistimi ea ente e ajoang, eo qalong e kentsoeng enjeneng ena, ke K-Jetronic. Kamora moo, e ile ea nkeloa sebaka ke litsamaiso tse ncha tsa L-Jetronic le LE-Jetronic. Molumo o sebetsang oa enjene ke lilithara tse 2.3, tse fokolang ho feta tse fetileng, leha ho le joalo, ho eketseha ha matla ho se ho ntse ho bonahala: 137-147 hp. ka lebelo la 5300 rpm. M20B23 le M20B20 ke baemeli ba ho qetela ba letoto, ba hlahisitsoeng pele ho 1987 ka tsamaiso ea Jetronic.
se sebedisoang ho mehlala
- 1977–1982 E21323i
- 1982–1984 E30323i
- 1984–1987 E30323i
M20B25
Enjene ena e nkile sebaka sa tse peli tse fetileng, tse hlahisitsoeng feela ka sistimi ea ente ea Bosh Motronic ea liphetolelo tse fapaneng. Ho falla 2494 cu. cm e o lumella ho nts'etsapele 174 hp. (ntle le converter) ho 6500 rpm, e ileng ea feta haholo ts'ebetso ea baemeli ba banyenyane ba letoto. Bophara ba cylinder bo se bo holile ho fihla ho 84 mm, 'me sekhahla sa piston se fihla ho 75 mm. Compression e ile ea lula e le boemong bo tšoanang - 9.7: 1. Hape ho liphetolelo tse ntlafalitsoeng, ho ile ha hlaha mekhoa ea Motronic 1.3, e ileng ea fokotsa ts'ebetso ea enjene. Ho phaella moo, converter ea catalytic e fokotsa matla ho 169 hp, leha ho le joalo, e ne e sa kenngoa likoloing tsohle.
se sebedisoang ho mehlala
- 1985–1993 E30325i
- 1989–1990 E34525i
- 1988–1991 Z1
M20V27 ke enjene e kholo ka ho fetisisa ea M20 ea BMW. E ne e etselitsoe ho sebetsa hantle haholoanyane le torque ho li-revs tse tlase, e neng e se ntho e tloaelehileng bakeng sa BMW inline-sixes e mathang ka lebelo le holimo la 6000 rpm. Ho fapana le M20B25, piston stroke e holile ho 81 mm, le bophara ba silinda ho 84 mm. Hlooho ea block e batla e fapane le B25, camshaft e boetse e fapane, empa li-valve li lula li tšoana.
Liliba tsa li-valve li bonolo, li monya matla a mangata a feteletseng, e leng se ileng sa eketsa katleho. Hape bakeng sa enjene ena, ho sebelisoa lisebelisoa tse ncha tse nang le liteishene tse telele, 'me throttle e tšoana le ea M20 kaofela. Ka lebaka la liphetoho tsena, moeli o ka holimo oa lebelo la enjene o fokotsehile ho 4800 rpm. Khatello ea lienjine tsena e ne e ipapisitse le 'maraka oo li isitsoeng ho ona: likoloi tse nang le khatello ea 11: 1 li ne li khanna USA,' me 9.0: 1 e ile ea rekisoa Europe.
se sebedisoang ho mehlala
- 1982-1987 E30325e, 325e
- 1982–1988 E28525e
Matla a hlahisoang ke mohlala ona ha a fete ba bang kaofela - 121-127 hp, empa torque e nang le moeli oa 14 N * m ho tloha holimo ka ho fetisisa (M20B25) ke 240 N * m ho 3250 rpm.
Tšebeletso
Bakeng sa letoto lena la lienjine, hoo e ka bang litlhoko tse tšoanang tsa ts'ebetso le oli tse sebelisoang. Ho molemo ho sebelisa SAE semi-synthetics e nang le viscosity ea 10w-40, 5w-40, 0w-40. Maemong a mang, ho khothalletsoa ho tlatsa li-synthetics bakeng sa potoloho e le 'ngoe ea phetoho. Baetsi ba oli ba lokelang ho ela hloko: Liqui Molly, Tlhokomelo, hlahloba lik'hilomithara tse ling le tse ling tse 10, ho nkeloa sebaka sa lisebelisoa - ho tšoana le motho e mong le e mong. Empa ke habohlokoa ho hopola tšobotsi e le 'ngoe ea BMW ka kakaretso - ho hlokahala hore u hlokomele ka hloko boemo ba metsi, kaha hangata li-gaskets li fetoha tse sa sebelisoeng' me li qala ho lutla. Leha ho le joalo, sena ha se tšitiso e tebileng joalo, kaha e rarolloa ka ho reka likarolo tse tsoang thepa e ntle.
Mabapi le sebaka sa nomoro ea enjene - kaha block ke ea moralo o ts'oanang - palo ea mefuta eohle ea letoto e fumaneha ka holim'a li-spark plugs, karolong e ka holimo ea block.
Lienjineri tsa M20 le litšobotsi tsa tsona
| Enjene | HP/rpm | N*m/r/min | Lilemo tsa tlhahiso |
|---|---|---|---|
| M20B20 | 120/6000 | 160/4000 | 1976-1982 |
| 125/5800 | 170/4000 | 1981-1982 | |
| 122/5800 | 170/4000 | 1982-1984 | |
| 125/6000 | 174/4000 | 1984-1987 | |
| 125/6000 | 190/4500 | 1986-1992 | |
| M20B23 | 140/5300 | 190/4500 | 1977-1982 |
| 135/5300 | 205/4000 | 1982-1984 | |
| 146/6000 | 205/4000 | 1984-1987 | |
| M20B25 | 172/5800 | 226/4000 | 1985-1987 |
| 167/5800 | 222/4300 | 1987-1991 | |
| M20B27 | 121/4250 | 240/3250 | 1982-1987 |
| 125/4250 | 240/3250 | 1987-1992 |
Tokiso le ho fapanyetsana
Sehlooho sa tokiso bakeng sa BMW se senotsoe hantle, empa pele ho tsohle ho bohlokoa ho utloisisa hore na koloi e itseng e e hloka kapa che. Ntho e bonolo ka ho fetisisa e atisang ho etsoa ka letoto la M20 ke ho kenngoa ha turbine le chip tuning, ho tlosa catalyst, haeba ho le joalo. Lintlafatso tsena li u lumella ho nyolohela ho 200 hp. ho tloha ho enjene e ncha le e nyane joalo - phetoho e batlang e le ea Europe ka sehlooho sa lienjineri tse nyane tse matla, tse 'nileng tsa sebelisoa le ho sebelisoa Japane ho fihlela kajeno.
Hangata, beng ba likoloi ho tloha lilemong tse joalo tsa khale tsa tlhahiso ba nahana ka ho fetola enjene, kaha mohloli oa lilemo tse 20 kapa ho feta o tsoteha. Lienjineri tsa sejoale-joale tsa BMW le Toyota li tla thusa mona, haholo-holo li hohela ka ho ata le ho ts'epahala ha tsona. Hape, litšobotsi tsa matla tsa lienjineri tse ngata tsa sejoale-joale ho fihlela lilithara tse 3 li tla li lumella ho sebelisoa ntle le ho nkela lebokose la li-gear. Tabeng ea ho kenya mochine o tukang ka hare o fetang haholo litšobotsi tsa pele, sebaka sa ho hlahloba le sona se tla tlameha ho behoa ka tsela e nepahetseng.
Hape, haeba u na le BMW ea khale haholo ho tloha ho M20 pele ho 1986, u ka ntlafatsa tsamaiso ea eona ho ea ho ea morao-rao le ho fumana matla a molemo. Ba bang ba kenya litsamaiso tse ipapisitseng le maemo a itseng a ts'ebetso, kapa ba batla ho fumana ts'ebetso e ntle "ka tlase".
