Device for encapsulating the main bearing of a crankshaft
View Patent ↗A device encapsulates a main bearing of a crankshaft. The main bearing is supplied with oil via an oil supply groove. The device has a bearing seat for the main bearing and on its sides which face toward the crank webs of the crankshaft, has oil channels which are open in the direction of the main bearing and in the direction of the crankshaft webs. In the device, the oil channels are sealed off in the direction of the crankshaft webs by sealing disks which are fastened to the bearing seat.
1. A device for encapsulating a main bearing of a crankshaft, the device comprising:
a bearing seat for receiving the main bearing, said bearing seat having an oil supply groove formed therein for supplying oil to the main bearing, said main bearing having sides facing toward crank webs of the crankshaft, said sides having oil channels formed therein opening in a direction of the main bearing and in a direction of the crankshaft webs; and
sealing disks covering said oil channels in the direction of the crankshaft webs and fastened to said bearing seat.
2. The device according to claim 1 , wherein each of said sealing disks extends over a semicircle defining semicircle ends.
3. The device according to claim 2 , wherein each of said sealing disks is held in a region of said semicircle ends in said bearing seat.
4. The device according to claim 3 , wherein:
said bearing seat has a parting plane with grooves formed therein; and
said sealing disks each have, in said region of said semicircle ends, lugs engaging in said grooves in said parting plane of said bearing seat.
5. The device according to claim 4 , wherein said lugs makes contact with said bearing seat with a preload.
6. The device according to claim 2 , wherein said two sealing disks which are assigned to one bearing half are formed in one piece.
7. The device according to claim 1 , wherein:
said bearing seat has a hole formed therein; and
each of said sealing disks has at least one lug, with said lug engaging into said hole of said bearing seat.
8. The device according to claim 7 , wherein said hole is disposed obliquely with respect to a rotational axis of the crankshaft.
9. The device according to claim 7 , wherein said hole is a bore of said bearing seat.
10. The device according to claim 7 , wherein said lug makes contact with said bearing seat with a preload.
11. The device according to claim 1 , wherein each of said sealing disks has a radial inner edge aligned toward the main bearing.
12. The device according to claim 11 , wherein said radial inner edge is formed as a micro-sealing edge for sealing off with respect to the main bearing.
13. The device according to claim 12 , wherein said micro-sealing edge is one of a ground micro-sealing edge and a micro-sealing lip.
14. The device according to claim 11 , wherein each of said sealing disks seals off in the direction of the main bearing in a non-contact fashion.
15. The device according to claim 1 , wherein said oil channels have drains, which are situated at a bottom in an installed position, for the oil.
16. The device according to claim 15 ,
wherein said drains have oil channels formed therein that open in the direction of the crankshaft webs; and
further comprising covers covering said oil channels and fastened to at least one of said sealing disks and said bearing seat.
17. The device according to claim 16 , wherein each of said covers and said one of said sealing disks adjacent thereto are formed in one piece.
18. The device according to claim 16 , wherein at least one of said sealing disks and said covers are metal sheets.