Dnepr MT10-36 - Page 32

From the main line the oil is fed to the annu lar groove in the
front bearing body and, from there, is directed through the ch an nel
into
the ce ntrifuge body. After being cleaned in the centrifuge , the
oil is supplied through the oil-out passage of crankshaft 6 a nd oil-
supply
passage 2 in the web to catchers 4 located in th e cra nkpins,
and furth er, through hol es 3, gets in to connecting rod bushes.
Fig. 10. Engine lubricating system:
I- oi l drain passage; 2- oil- sup ply passage in web; 3- hole for lubrication of con-
necting rod bearing; 4- catc h er; 5- hole for lubrication of piston pin; 6- oil-drain
passage of c rankshaft; 7 - oil-supply passage of c rankshaft; 8 - hole fo r supplying oil
into centrifuge body; 9- hole in screen; 10- oi l pump; II- suct ion channe l; J2-
filler plug; 13 - by· p ass channe l; 1 4- gauze filter; 15- dr ain hole plug: 16- redu·
cing valve; 17- oil· sup ply p assage of r educ i ng valve; 18 - drain pipe; 19- main oil
ll ne; 20- hole for draining oil from centrifuge; 2 1- slot in tappet for supply ing oil
to cylin
de r head; 22- emergency oil pressure trans mitter; 23- oil-supply passage in
rod hou sing
The fast-moving pa rts of the crank gear c ontribute to intensive
splas hing of oil and t he formati on of oil mist in th e crankcase. Th e
oil
mist is used to lubricate the working surfa ces of the cy. linders,
piston pins, connecting rod small ends, tappet guides, crankshaft
antifriction bearings, timing pinions, ball bearings, camshaft cams,
tappets and other friction parts.
The atomized oil, after getting into tapp et slot s 21, com es into
the h ousin gs of the r ods , settles there and flows down into the cy-
linder heads.
In them, the oil is splashed by the valves a nd springs,
thus lubricating the valves and rockers. An excess of oil flows down
drain pipe 18 back into the crankcase.
3:)