Drive device for a motor vehicle, said drive device comprising a multi-functional closure cover
A drive device for a motor vehicle. In particular a machine housing in which a lubricant consumer, a lubricant tank and a lubricant pump are arranged. The lubricant pump is fluidically connected on the suction side via a suction channel to the lubricant consumer and on the pressure side via a pressure channel to the lubricant tank and the lubricant tank is fluidically connected to the lubricant consumer via a flow channel. The suction channel, the pressure channel and the flow channel are each formed open with an opening in a base body of the machine housing and the openings are covered fluidically separate from one another by an end cover attached to the base body.
1 . A drive device for a motor vehicle comprising a machine housing comprising:
a first lubricant consumer;
a lubricant tank; and
a first lubricant pump having a suction side and a pressure side, wherein the first lubricant pump is fluidically connected:
on the suction side, via a first suction channel to the first lubricant consumer;
on the pressure side, via both a pressure channel and a lubricant line to the lubricant tank, wherein the pressure channel is connected to a pressure chamber and the lubricant line enters the pressure chamber via a connection opening; and
on the suction side, parallel to the first suction channel to a second suction channel and to a second lubricant consumer,
the first suction channel, the pressure channel, and a flow channel are each formed open with an opening in a base body of the machine housing,
the openings of the first suction channel, the pressure channel, and the flow channel are covered, fluidically separate from one another, by an end cover attached to the base body, the end cover having an opening formed therein,
an inner surface of the opening of the end cover forming at least a portion of a wall of a suction nozzle configured to supply lubricant from an air space of the machine housing,
the air space being delimited by a wall of the base body and by a machine housing cover fixed to the base body and being sealed off from an environment in a fluid-tight manner,
the suction nozzle being fluidically connected to the second suction channel,
the lubricant tank is fluidically connected via the flow channel and a second lubricant pump to the first lubricant consumer and separated from the air space by a partition wall,
the lubricant tank is fluidically connected via the flow channel and a third lubricant pump to a second lubricant consumer, and
a common drive is configured to drive the first lubricant pump, the second lubricant pump, and the third lubricant pump.
2 . The drive device according to claim 1 , wherein the first lubricant consumer and the second lubricant consumer are each present as one of the following devices:
a drive unit and a gearbox.
3 . The drive device according to claim 2 , wherein the first suction channel is fluidically connected via a lubricant sump to the first lubricant consumer and the second suction channel is fluidically connected via the lubricant sump to the second lubricant consumer.
4 . The drive device according to claim 2 , wherein the end cover for covering the openings rests against edges delimiting the openings, which edges lie completely in an imaginary plane.
5 . The drive device according to claim 2 , wherein the end cover consists of a material which is different from a material of the base body of the machine housing.
6 . The drive device according to claim 1 , wherein the first suction channel is fluidically connected via a lubricant sump to the first lubricant consumer and the second suction channel is fluidically connected via the lubricant sump to the second lubricant consumer.
7 . The drive device according to claim 6 , wherein the end cover for covering the openings rests against edges delimiting the openings, which edges lie completely in an imaginary plane.
8 . The drive device according to claim 6 , wherein the end cover consists of a material which is different from a material of the base body of the machine housing.
9 . The drive device according to claim 1 , wherein the end cover for covering the openings rests against edges delimiting the openings, which edges lie completely in an imaginary plane.
10 . The drive device according to claim 9 , wherein the end cover consists of a material which is different from a material of the base body of the machine housing.
11 . The drive device according to claim 1 , wherein the end cover consists of a material which is different from a material of the base body of the machine housing.
12 . The drive device according to claim 1 , wherein
the first lubricant pump is fluidically connected to the lubricant tank via the pressure channel formed in the base body and the connection opening,
a suction chamber of the end cover is fluidically connected via the corresponding opening to the first suction channel, and
the second suction channel is fluidically connected via a passage opening to the lubricant tank, so that the first lubricant pump is fluidically connected via the first suction channel formed in the base body and the passage opening to the first lubricant consumer.
13 . The drive device according to claim 1 , wherein the end cover is arranged in the air space and at least one machine shaft of the drive device protrudes into the air space.
14 . The drive device according to claim 1 , wherein a connection opening is fluidically connected via the lubricant line attached to the end cover to the lubricant tank, wherein the lubricant line extends through a passage opening in the partition wall delimiting the air space and extends partially through the lubricant tank.
15 . The drive device according to claim 1 , wherein the end cover encloses, at least in portions, a receiving opening formed in the machine housing, and a machine shaft is arranged and/or mounted in the receiving opening.
16 . The drive device according to claim 1 , wherein the first lubricant consumer and the second lubricant consumer are each present as one of the following devices:
a drive unit and a gearbox.
17 . The drive device according to claim 1 , wherein the first suction channel is fluidically connected via a lubricant sump to the first lubricant consumer and the second suction channel is fluidically connected via the lubricant sump to the second lubricant consumer.
18 . The drive device according to claim 1 , wherein the end cover for covering the openings rests against edges delimiting the openings, which edges lie completely in an imaginary plane.
19 . The drive device according to claim 1 , wherein the end cover consists of a material which is different from a material of the base body of the machine housing.