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´øÃÜ·â»·µÄÅçÓÍÍ·(Y62) ÓëȼÓÍѹÁ¦»º³å·§(40)ºÍÓÍѹ²âÊÔ½Ó¿Ú(51)¼¯³ÉÔÚÒ»Æð¡£ M271DEÐ͵ÄȼÓÍϵͳ£º
18 Ó͹ì 19 »ãºÏµã 20 ¸ßѹ±Ã
20/1 ¸ßѹ±ÃÇý¶¯
55/1 ´øÑ¹Á¦¿ØÖÆÆ÷µÄÆûÓÍÂËо 75 ÓÍÏä
a ÆûÓÍÂËо£¨ÄÚ²¿£© b ÆûÓÍÂËо£¨Íⲿ£©
c »Øµ½ suction jet pump d ½øÈëframe base֮ǰ e ½øÈë¸ßѹ±Ã֮ǰ f µ½Ó͹ìµÄ¸ßѹ¹Ü g ¸ßѹ±Ã»ØÓ͹Ü
B4/6 Ó͹ìѹÁ¦´«¸ÐÆ÷ M3 µÍѹÓͱÃ
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Y74 ѹÁ¦µ÷½Ú·§ Y76 ÅçÓÍÍ·
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M271·¢¶¯»úȼÓÍͨ¹ýÁ½¼¶Ê½µÄÆûÓͱÃ(M3)ͨ¹ýÓ͹Ü(a, b)Á÷Èë´øÓÐĤƬʽѹÁ¦µ÷½ÚÆ÷µÄÆûÓÍÂËо(55/1)²úÉú3-5°ÍµÄѹÁ¦²¢½«¶àÓàµÄȼÓÍ´ÓѹÁ¦¿ØÖÆÆ÷Ö±½ÓÁ÷Èë»ØÓ͹Ü(c) Á÷»ØÓÍÏäFuel is delivered as in the M271 with port injection from the 2-stage fuel pump over a pipe system
to the fuel filter The diaphragm pressure regulator integrated into the fuel filter serves to
regulate the fuel pressure (predelivery pressure) to approx. 3 ¨C 5 bar.
Excess delivered fuel flows from the pressure governor straight to the return line back into the fuel
tank. The return quantity is required so that the suction jet pump can transport the fuel from the left into
the right chamber in the fuel tank.
The fuel is routed over an advance line (d) under predelivery pressure over the reunion (19) and a lowpressure
line (e) to the high-pressure pump (20).
This means that the fuel system all the way into the engine compartment is identical with vehicles fitted with an M271 KE and DE engine.
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