Device for lubricating a transmission and a bearing
First Claim
1. A device for lubricating a transmission and a bearing, the device comprising:
- a transmission lubrication circuit being connected to the transmission and having a transmission lubricating medium flowing in said transmission and in said transmission lubrication circuit;
a bearing lubrication circuit being connected to the bearing and having a bearing lubricating medium flowing in said bearing and in said bearing lubrication circuit; and
transmission and bearing heat exchangers being connected in fluid communication with said transmission and bearing lubrication circuits, respectively, connecting lines extending between and connecting said transmission and bearing heat exchangers in fluid communication, conveying a heat exchange medium between said transmission and bearing heat exchangers and transferring heat between said transmission and bearing lubrication mediums during device operation, a difference between a temperature of said transmission lubricating medium and a temperature of said bearing lubricating medium being at least partially compensated through heat equalization of said lubricating mediums, said connecting lines forming a closed heat exchange circuit with said heat exchangers, said heat exchange circuit being separate from and being independent of said transmission lubrication circuit and said bearing lubrication circuit.
1 Assignment
0 Petitions
Accused Products
Abstract
A device lubricates a transmission (1) and a bearing (1′), in particular a rotor bearing in a wind turbine. The transmission (1) and the bearing (1′) are each associated with at least one lubrication circuit (3, 5). A lubricating medium flows in each circuit during the operation of the device. A heat exchanging device (7, 59, 61) transfers heat between the lubrication circuit (3) of the transmission (1) and the lubrication circuit (5) of the bearing (1′). The heat exchanging device (7, 59, 61) at least partially compensates for a difference between the temperature of the lubricating medium in the lubrication circuit (3) of the transmission (1) and the temperature of the lubricating medium in the lubrication circuit (5) of the bearing (1′) by heat compensation during the operation of the device.
12 Citations
11 Claims
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1. A device for lubricating a transmission and a bearing, the device comprising:
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a transmission lubrication circuit being connected to the transmission and having a transmission lubricating medium flowing in said transmission and in said transmission lubrication circuit; a bearing lubrication circuit being connected to the bearing and having a bearing lubricating medium flowing in said bearing and in said bearing lubrication circuit; and transmission and bearing heat exchangers being connected in fluid communication with said transmission and bearing lubrication circuits, respectively, connecting lines extending between and connecting said transmission and bearing heat exchangers in fluid communication, conveying a heat exchange medium between said transmission and bearing heat exchangers and transferring heat between said transmission and bearing lubrication mediums during device operation, a difference between a temperature of said transmission lubricating medium and a temperature of said bearing lubricating medium being at least partially compensated through heat equalization of said lubricating mediums, said connecting lines forming a closed heat exchange circuit with said heat exchangers, said heat exchange circuit being separate from and being independent of said transmission lubrication circuit and said bearing lubrication circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification