BMW S58, Руководство пользователя

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S58�Engine
7.�Oil�Supply
40
Index Explanation
6 Impeller,�oil�return�pump,�front�right�sump�and�turbocharger
7 Powertrain�for�oil�pump
8 Pressure�relief�valve
9 Oil�pump�housing
10 Oil�pump�sprocket
11 Control�plunger
12 Axially�movable�impeller
13 Oil�intake�snorkel,�sump,�rear
14 Drive�gear�suction�pump
15 Pressure�control�spring
16 Engine�oil�duct
From�the�oil�intake�snorkel,�the�oil�is�conveyed�by�the�external�gear�oil�pump�via�the�gears�into�the
engine�oil�duct,�into�the�engine�block�and�to�the�oil�filter.
The�non-driven�oil�pump�gear�can�be�axially�shifted�in�this�pump,�thereby�varying�the�delivery�rate.
Axial�shifting�is�effected�by�the�oil�pressure�from�the�filtered�oil�duct�coming�from�the�main�oil�duct,
which�can�be�varied�via�the�map�control�valve�by�means�of�a�control�piston.�The�operating�principle�of
the�external�gear�oil�pump�ensures�that�the�required�oil�quantity�and�the�oil�pressure�are�supplied�in
each�case.