Drive Motor for a Rail Vehicle

Abstract

The present invention relates to a drive motor for transverse mounting in a running gear of a rail vehicle with a motor housing ( 105.2 ) and a motor shaft ( 105.1 ), wherein the motor shaft ( 105.1 ) in the mounted state is oriented in a transverse direction of the running gear ( 103 ) and the motor housing ( 105.2 ) extends over a housing width in the transverse direction of the running gear ( 103 ). The motor housing ( 105.2 ), on its underside, has a flattened region ( 105.3 ), wherein the flattened region ( 105.3 ) extends over at least 50% of the housing width and the flattened region ( 105.3 ) in at least one peripheral region forms an edge ( 105.4, 105.5 ) running in the transverse direction.

1 . A drive motor for transversely arranged mounting in a running gear of a rail vehicle, comprising
 a motor housing and   a motor shaft, wherein   said motor shaft, in said mounted state, is oriented in a transverse direction of said running gear, and   said motor housing extends over a housing width in said transverse direction of said running gear,   wherein said motor housing, on its underside, has a flattened region,   said flattened region extends over at least 50% of said housing width, and   said flattened region, in at least one peripheral region, forms an edge running in said transverse direction.   
     
     
         2 . The drive motor according to  claim 1 , wherein said flattened region extends over at least 70% of said housing width. 
     
     
         3 . The drive motor according to  claim 1 , wherein said flattened region at least one of extends over at least 80% of said housing width and extends over at least 95% of said housing width. 
     
     
         4 . The drive motor according to  claim 1 , wherein said flattened region extends over substantially said entire housing width. 
     
     
         5 . The drive motor according to  claim 1 , wherein said flattened region has a plurality of flattened subsections which are spaced apart in said transverse direction. 
     
     
         6 . The drive motor according to  claim 1 , wherein said flattened region, in a peripheral region leading in a direction of travel of said running gear, forms an edge running in said transverse direction. 
     
     
         7 . The drive motor according to  claim 1 , wherein said flattened region, in a peripheral region trailing in a direction of travel of said running gear, forms an edge running in said transverse direction. 
     
     
         8 . The drive motor according to  claim 1 , wherein said motor housing, in said region of said edge running in said transverse direction, in a sectional plane running perpendicular to said transverse direction, has a radius of curvature of at least one of less than 10 mm, less than 5 mm and less than 2 mm. 
     
     
         9 . The drive motor according to  claim 1 , wherein
 said motor housing defines a circumferential direction and a central plane which, in said mounted state, runs parallel to a height direction and said transverse direction of said running gear, wherein   said flattened region, in said circumferential direction, extends over a circumferential angle of at least one of 20° to 90°, 30° to 80° and 40° to 60°,   
     
     
         10 . The drive motor according to  claim 1 , wherein
 said motor housing defines a circumferential direction and a central plane which, in said mounted state, runs parallel to a height direction and said transverse direction of said running gear, wherein   said flattened region, in said circumferential direction, extends over substantially said same circumferential angle to both sides of said central plane.   
     
     
         11 . The drive motor according to  claim 1 , wherein
 said flattened region, in said region of said edge running in said transverse direction, is bordered by an adjacent region, wherein   said adjacent region extends in said circumferential direction over a circumferential angle of at least one of 15° to 35°, 20° to 30° and 25° to 30°,   
     
     
         12 . The drive motor according to  claim 1 , wherein
 said flattened region, in said region of said edge running in said transverse direction, is bordered by an adjacent region, wherein   said adjacent region runs substantially tangential to an adjacent outer circumference of said motor housing.   
     
     
         13 . The drive motor according to  claim 1 , wherein
 said flattened region, in said region of said edge running in said transverse direction, is bordered by an adjacent region, wherein   said adjacent region is formed as a substantially planar surface.   
     
     
         14 . The drive motor according to  claim 1 , wherein
 said flattened region, in said region of said edge running in said transverse direction, is bordered by an adjacent region, wherein   said adjacent region runs inclined at an angle of inclination to said flattened region of at least one of 20° to 60°, 30° to 50° and 40° to 45°.   
     
     
         15 . The drive motor according to  claim 1 , wherein said flattened region is formed as a substantially planar surface. 
     
     
         16 . The drive motor according to  claim 1 , wherein
 said flattened region, in said region of a leading edge and in said region of a trailing edge, is bordered by an adjacent region, wherein   each adjacent region runs substantially tangential to an adjacent outer circumference of said motor housing.   
     
     
         17 . The drive motor according to  claim 1 , wherein
 said flattened region, in said region of a leading edge and in said region of a trailing edge, is bordered by an adjacent region, wherein   each adjacent region is formed as a substantially planar surface.   
     
     
         18 . The drive motor according to  claim 1 , wherein
 said flattened region, in said region of a leading edge and in said region of a trailing edge, is bordered by an adjacent region, wherein   each adjacent region runs inclined at an angle of inclination to said flattened region of at least one of 20° to 60°, 30° to 50° and 40° to 45°.   
     
     
         19 . A running gear of a rail vehicle with a drive motor for transversely arranged mounting, driving a wheel unit of said running gear and comprising
 a motor housing and   a motor shaft, wherein   said motor shaft, in said mounted state, is oriented in a transverse direction of said running gear, and   said motor housing extends over a housing width in said transverse direction of said running gear,   wherein said motor housing, on its underside, has a flattened region,   said flattened region extends over at least 50% of said housing width, and   said flattened region, in at least one peripheral region, forms an edge running in said transverse direction.   
     
     
         20 . The running gear according to  claim 19 , wherein
 said wheel unit defines a wheel axis which, in a height direction of said running gear, is arranged at a first height level, and   said flattened region is arranged at a second height level which lies below said first height level.   
     
     
         21 . A rail vehicle comprising
 a running gear with a drive motor for transversely arranged mounting,   said drive motor driving a wheel unit of said running gear and comprising a motor housing and a motor shaft, wherein   said motor shaft, in said mounted state, is oriented in a transverse direction of said running gear, and   said motor housing extends over a housing width in said transverse direction of said running gear,   wherein said motor housing, on its underside, has a flattened region,   said flattened region extends over at least 50% of said housing width, and   said flattened region, in at least one peripheral region, forms an edge running in said transverse direction.   
     
     
         22 . The rail vehicle according to  claim 21 , wherein it is designed for high speed traffic with a nominal operating speed above 250 km/h, in particular above 300 km/h.