DRIVE DEVICE FOR A MOTOR VEHICLE

Abstract

A drive device for a motor vehicle having a drive assembly that is operatively connected or can be operatively connected to an input shaft of a gearbox. A gear set of the gearbox can be supplied with lubricant by a primary lubricant pump. The primary lubricant pump is coupled to an output shaft of the gearbox.

Claims

1-10 (canceled)

11. A drive device for a motor vehicle, comprising: a drive assembly that is operatively connected to an input shaft of a gearbox, wherein a gear set of the gearbox is supplied with lubricant by a primary lubricant pump, wherein the primary lubricant pump is coupled to an output shaft of the gearbox.

12. The drive device according to claim 11, wherein an output gear stage of the gearbox can additionally be supplied with lubricant by the primary lubricant pump.

13. The drive device according to claim 11, wherein the primary lubricant pump is coupled to the output shaft independently of a direction of rotation.

14. The drive device according to claim 11, wherein the lubricant is supplied to the gearbox through a plurality of nozzles.

15. The drive device according to claim 14, wherein at least one nozzle of the plurality of nozzles is connected via an aperture to a pressure line, wherein the pressure line is connected to a pressure side of the primary lubricant pump.

16. The drive device according to claim 11, wherein a pressure side is connected via an overpressure valve at an intake side of the primary lubricant pump and the intake side of the primary lubricant pump is connected via a filter to a lubricant sump of the gearbox.

17. The drive device according to claim 16, wherein the gearbox has a lubricant container that is different from the lubricant sump and is configured to supply said lubricant container with lubricant directly through at least one nozzle.

18. The drive device according to claim 16, wherein a lubricant container at a geodetically lowest point, has an outlet, through which a direct flow connection to the lubricant sump exists.

19. The drive device according to claim 18, wherein the lubricant container has at least one overflow, which lies geodetically higher than the outlet and produces a direct flow connection to the lubricant sump.

20. The drive device according to claim 16, wherein the gear set and the output gear stage has at least one toothed gear wheel that engages in the lubricant sump.

Description

[0040] The invention will be explained below on the basis of the exemplary embodiments illustrated in the drawing, without resulting in any limitation of the invention. Shown in the sole FIGURE:

[0041] FIGURE a schematic illustration of a drive device for a motor vehicle.

[0042] The FIGURE shows a schematic illustration of a drive device 1, which, for example, is a component of a motor vehicle, which is not illustrated in more detail. The drive device 1 has a drive assembly 2, which, for example, is present as an internal combustion engine. The drive assembly 2 provides a drive shaft 3, which is operatively connected or can be operatively connected via a clutch 4 to an input shaft 5 of a gearbox 6. The gearbox 6 further provides an output shaft 7, which is preferably operatively connected rigidly and/or permanently to at least one driven axle of the motor vehicle (not illustrated here).

[0043] The gearbox 6 provides a gear set, which is not illustrated here, via which the input shaft 5 is operatively connected or can be operatively connected to the output shaft 7. In this case, it is possible with the aid of the gearbox 6 to adjust different driving gears or gear ratios between the input shaft 5 and the output shaft 7.

[0044] The gear set of the gearbox 6 can be supplied with lubricant by means of a primary lubricant pump 8. The primary lubricant pump 8 is now coupled to the output shaft 7 of the gearbox 6. For this purpose, for example, a toothed gear wheel 9 is connected rigidly to the output shaft 7 or arranged on it. The toothed gear wheel 9 meshes with another toothed gear wheel 10, which, for example, is arranged on an input shaft 11 of the primary lubricant pump 8. Alternatively, however, it can also be provided to couple the primary lubricant pump 8 to the output shaft 7 independently of the direction of rotation, for which purpose a corresponding coupling device is provided.