Method for mounting an oil sump and arrangement of an oil sump on an assembly formed by a crankcase and a flywheel housing

Patent metadata

Field	Value
Publication number	US-9797283-B2
Application number	US-201715434528-A
Country	US
Kind code	B2
Filing date	Feb 16, 2017
Priority date	Feb 26, 2014
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

An oil sump is mounted on an assembly formed by a crankcase and a flywheel housing of an internal combustion engine. The flywheel housing has a first parting plane to the crankcase and to the oil sump. In mounted state, the joint faces of the flywheel housing, the crankcase, and the oil sump lie on each other. The crankcase has a second parting plane to the oil sump. In mounted state the joint faces of the crankcase and the oil sump lie on each other. At least one guide is provided between the flywheel housing and the oil sump, the guide orienting at least the joint faces of the oil sump and the crankcase relative to each other during connection of the oil sump to the assembly formed by the crankcase and flywheel housing, such that on creation of the abutment connection between the oil sump and the crankcase, these joint faces are oriented substantially planar parallel.

First claim

The invention claimed is:

1. An arrangement of an oil sump on an assembly formed by a crankcase and a flywheel housing of an internal combustion engine, wherein the flywheel housing has a joint face that forms a first parting plane with a first joint face of the crankcase and a first joint face of the oil sump, the joint face of flywheel housing forming the first parting plane lies directly or indirectly on the first joint face of the crankcase and the first joint face of the oil sump in an abutment connection in a mounted state of the arrangement, and wherein the crankcase has a second joint face that forms a second parting plane with a second joint face of the oil sump, the second joint face of the crankcase and the second joint face of the oil sump forming the second parting plane lie on each other directly or indirectly in an abutment connection in the mounted state, at least one guide is provided between the joint face of the flywheel housing and the first joint face of the oil sump, the at least one guide orienting at least the second joint face of the oil sump and second joint face of the crankcase relative to each other during attachment of the oil sump to the assembly, such that on creation of the abutment connection between the oil sump and the crankcase, the second joint face of the oil sump and the second joint face of the crankcase forming the second parting plane are oriented substantially planar parallel, wherein the at least one guide is disposed on the joint face of the flywheel housing and on the first joint face of the oil sump.

2. The arrangement according to claim 1 , wherein the at least one guide comprises at least one guide element allowing only a movement of the oil sump in a mounting and application direction (z), such that the oil sump is movable along the first parting plane in a direction of the crankcase, and the at least one guide element preventing twisting about and/or tilting of the oil sump relative to an oil sump axis running transversely to the mounting and application direction during the movement of the oil sump in the mounting an application direction.

3. The arrangement according to claim 2 , wherein the at least one guide element includes at least one linear guide element allowing only a linear movement of the oil sump in the mounting and application direction.

4. The arrangement according to claim 3 , wherein the first parting plane between the flywheel housing, the crankcase and the oil sump runs substantially perpendicular to the second parting plane between the crankcase and the oil sump.

5. The arrangement according to claim 2 , wherein the first parting plane between the flywheel housing, the crankcase and the oil sump runs substantially perpendicular to the second parting plane between the crankcase and the oil sump.

6. The arrangement according to claim 1 , wherein the at least one guide includes at least one pin-slot connection between the flywheel housing and the oil sump, in which a pin cooperates with a slot which is substantially adapted in form or contour to the pin and receives the pin in a guided fashion.

7. The arrangement according to claim 1 , wherein the at least one guide includes a guide pin inserted in the joint face of the flywheel housing or the first joint face of the oil sump and a corresponding feed-in groove that is open towards the second parting plane to form at least one of a feed-in device and a pin-slot connection.

8. The arrangement according to claim 6 , wherein at least three pin-slot connections are provided, the straight connecting lines of which form at least one triangle, wherein the at least three pin-slot connections include at least two slots on one of the flywheel side and the oil sump side, each of the at least two slots forming part of one pin-slot connection and at the top in relation to the mounting or vertical axis direction of the flywheel housing and spaced from each other in the transverse direction, into which slots corresponding pins on the oil sump side or flywheel side engage, and spaced from the at least two slots in the vertical direction, at least one lower slot on the flywheel side or oil sump side, which forms part of a lower pin-slot connection and into which a corresponding pin on the oil sump side or flywheel side engages.

9. The arrangement according to claim 8 , wherein said at least one lower slot is formed by the feed-in groove.

10. A motor vehicle including an arrangement according to claim 1 .

11. The motor vehicle of claim 10 , wherein the motor vehicle is a commercial vehicle.

Assignees

• Man Truck & Bus Ag

Inventors

• Fedotov Sergiy

Classifications

• Y10T29/49231

  I.C. [internal combustion] engine making · CPC title

• F02F7/0082

  Mounting of engine casings · CPC title

• F02F7/0073

  Adaptations for fitting the engine, e.g. front-plates or bell-housings · CPC title

• F02F7/0046

  Shape of casings adapted to facilitate fitting or dismantling of engine parts · CPC title

• F02B2075/025

  two · CPC title