Oil duct part to be mounted in a transmission, and transmission comprising an oil duct part
An oil duct part to be mounted in a transmission, particularly a motor vehicle transmission, includes a conduit with an inlet port and an outlet port, at least one oil collection region for collecting oil conducted through the conduit, and at least one drain for oil from the at least one oil collection region. The conduit has an oil conducting direction (F) from the inlet port to the outlet port and a conduit wall that is closed all around perpendicularly to the oil conducting direction (F). The at least one oil collection region may have a first reservoir with a first reservoir wall and a first reservoir base, as well as a second reservoir with a second reservoir wall and a second reservoir base.
1. An oil duct part ( 1 ) to be mounted in a transmission ( 100 ), the oil duct part ( 1 ) comprising:
a conduit ( 2 ) with an inlet port ( 11 ) and with an outlet port ( 12 ),
wherein the conduit ( 2 ) has an oil conducting direction (F) from the inlet port ( 11 ) to the outlet port ( 12 ) and a conduit wall ( 21 ) which is closed circumferentially perpendicular to the oil conducting direction (F),
at least one oil collecting region ( 13 a ) for collecting oil conducted through the conduit ( 2 ), and
at least one drain ( 15 a ) for oil from the at least one oil collecting region ( 13 a ),
wherein the at least one oil collecting region ( 13 a ) comprises:
a first reservoir ( 13 ) with a first reservoir wall ( 25 ) and a first reservoir base ( 24 ),
wherein at least the first reservoir ( 13 ) is provided with a partition wall ( 201 ) which projects from the first reservoir base ( 24 ) and divides the first reservoir ( 13 ) into at least two partial regions, wherein the outlet port ( 12 ) opens towards a first partial region ( 13 b ) and a second partial region ( 13 c ) being connected to the first partial region ( 13 b ) via a cut-through ( 202 ) in the partition wall ( 201 ), and
a second reservoir ( 14 ) with a second reservoir wall ( 27 ) and a second reservoir base ( 26 ), wherein the conduit ( 2 ) adjoins the first reservoir wall ( 25 ) and the second reservoir wall ( 27 ) in such a way that, viewed in the oil conducting direction (F) of the conduit ( 2 ), the first reservoir base ( 24 ) is arranged between the inlet port ( 11 ) and the outlet port ( 12 ) and the second reservoir base ( 26 ) is located between the inlet port ( 11 ) and the first reservoir base ( 24 ).
2. The oil duct part ( 1 ) according to claim 1 , wherein the oil duct part ( 1 ) is configured to be installed in the transmission ( 100 ) in a predetermined mounting state which defines an orientation of the oil duct part ( 1 ) relative to gravity (G), wherein, in an orientation corresponding to the predetermined mounting state, the first reservoir base ( 24 ) and the second reservoir base ( 26 ) are aligned approximately perpendicular to a force of gravity (G) and the oil conducting direction (F) from the inlet port ( 11 ) to the outlet port ( 12 ) has at least one component running counter to the force of gravity (G).
3. The oil duct part ( 1 ) according to claim 1 , wherein an end of the conduit wall ( 21 ) facing away from the inlet port ( 11 ) of the conduit ( 2 ) forms a wall ( 21 a ) projecting over the first reservoir base ( 24 ) of the first reservoir ( 13 ) and delimiting the outlet port ( 12 ).
4. The oil duct part ( 1 ) according to claim 1 , wherein the conduit ( 2 ) is continuously closed from the inlet port ( 11 ) to the outlet port ( 12 ) and is straight over at least 80% of its longitudinal extent.
5. The oil duct part ( 1 ) according to claim 1 , wherein the second reservoir ( 14 ) can be filled by oil draining from the first reservoir ( 13 ) via a first dam ( 203 ).
6. The oil duct part according to claim 1 , wherein the at least one drain ( 15 a ) includes at least one first drain ( 15 ) located in the first reservoir ( 13 ).
7. The oil duct part according to claim 6 , wherein at least one second drain ( 16 ) is located in the second reservoir ( 14 ) and oil from the second reservoir ( 14 ) reaches the at least one second drain ( 16 ) via a dam ( 204 ).
8. The oil duct part according to claim 7 , wherein the partition wall ( 201 ) is configured as a surge breaker, wherein the partition wall has a keel ( 206 ) facing the outlet port ( 12 ), from which partial walls bent backwards in opposite directions extend towards the at least one first drain ( 15 ) and a third drain ( 16 a ).
9. The oil duct part ( 1 ) according to claim 1 , wherein the oil duct part ( 1 ) is configured as an insert part.
10. A transmission ( 100 ) having a transmission housing ( 140 ) and an oil duct part ( 1 ) according to claim 1 , wherein the transmission housing ( 140 ) has at least one transmission gear ( 107 ) located at least partially in an oil sump ( 150 ) of the transmission ( 100 ) and the oil duct part ( 1 ) is arranged in a predetermined mounting state defining an orientation of the oil duct part ( 1 ) in the transmission housing ( 140 ) relative to gravity (G) wherein the predetermined mounting state has the inlet port ( 11 ) positioned at an end face of the transmission gear ( 107 ) located at least partially in the oil sump ( 150 ), the oil conducting direction (F) from the inlet port ( 11 ) to the outlet port ( 12 ) having at least one component running counter to a force of gravity (G), and at least the first reservoir base ( 24 ) located above the transmission gear ( 107 ).
11. The oil duct part ( 1 ) according to claim 1 , wherein the oil duct part ( 1 ) is configured to be mounted in the transmission ( 100 ) of a motor vehicle.
12. The transmission ( 100 ) according to claim 10 , wherein, during operation, oil thrown up from the oil sump ( 150 ) by the transmission gear ( 107 ) passes into the inlet port ( 11 ) and along the oil conducting direction (F) of the conduit ( 2 ) to the outlet port ( 12 ).
13. The transmission according to claim 10 , wherein the at least one drain ( 15 a ) includes at least one first drain ( 15 ) located in the first reservoir ( 13 ) and having a drain port ( 17 ) which supplies a bearing of a first transmission element with oil and wherein the at least one drain ( 15 a ) further includes at least one second drain ( 16 ) located in the second reservoir ( 14 ) having a drain port ( 18 ) which supplies a bearing of a second transmission element with oil.
14. The transmission according to claim 13 , wherein the bearing of the first transmission element is a bearing ( 175 ) of an input-side rotor shaft ( 102 ) mounted in the transmission ( 100 ), and the bearing of the second transmission element is a bearing ( 176 ) of a pinion ( 106 ).
15. The transmission ( 100 ) according to claim 10 , wherein the transmission is a motor vehicle transmission.