US2009057062A1PendingUtilityA1

Arrangement of an electrically operated oil pump of an automatic transmission

Assignee: ZAHNRADFABRIK FRIEDRICHSHAFENPriority: Sep 1, 2007Filed: Jul 29, 2008Published: Mar 5, 2009
Est. expirySep 1, 2027(~1.1 yrs left)· nominal 20-yr term from priority
F16H 57/0441F16H 57/0484F16H 57/0494F16H 61/0031
42
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Claims

Abstract

An arrangement of an electrically operated oil pump ( 2 ) of an automatic transmission ( 1 ) is proposed, in which the electrically operated oil pump ( 2 ) is arranged partially inside a housing ( 3 ) whose housing wall ( 4 ) is not connected with the inside space of a transmission housing ( 5 ).

Claims

exact text as granted — not AI-modified
1 - 10 . (canceled) 
     
     
         11 . An arrangement of an electrically operated oil pump ( 2 ) of an automatic transmission ( 1 ), wherein the electrically operated oil pump ( 2 ) is arranged partially inside a housing ( 3 ) having a housing wall ( 4 ) which is not connected with an inside space of a transmission housing ( 5 ). 
     
     
         12 . The arrangement of the electrically operated oil pump ( 2 ) according to  claim 11 , wherein the electrically operated oil pump ( 2 ) is arranged partially inside the housing ( 3 ) of a starting element of the transmission ( 1 ). 
     
     
         13 . The arrangement of the electrically operated oil pump ( 2 ) according to  claim 11 , wherein the electrically operated oil pump ( 2 ) is arranged partially inside one of a converter or a clutch bell ( 3 ). 
     
     
         14 . The arrangement of the electrically operated oil pump ( 2 ) according to  claim 11 , wherein an electric portion ( 6 ) of the electrically operated oil pump ( 2 ) is arranged outside the housing ( 3 ), and a hydraulic portion ( 7 ) of the electrically operated oil pump ( 2 ) is arranged inside a space of the housing ( 3 ) that is open toward a drive engine. 
     
     
         15 . The arrangement of the electrically operated oil pump ( 2 ) according to  claim 11 , wherein a pressure line ( 8 ) of the electrically operated oil pump ( 2 ) is arranged completely inside a space of the housing ( 3 ) that is open toward a drive engine, and a first portion of a suction line ( 9 ) of the electrically operated oil pump ( 2 ) is arranged inside the space of the housing ( 3 ) and a second portion of the suction line ( 9 ) of the electrically operated oil pump ( 2 ) is arranged inside a space of the transmission housing ( 5 ). 
     
     
         16 . The arrangement of the electrically operated oil pump ( 2 ) according to  claim 14 , wherein the hydraulic portion ( 7 ) of the electrically operated oil pump ( 2 ) is connected by a pressure line ( 8 ) to one of a pressure channel of a transmission oil pump, which is driven by the drive engine, or a pressure line of a control valve of the transmission oil pump, which is driven by the drive engine. 
     
     
         17 . The arrangement of the electrically operated oil pump ( 2 ) according to  claim 11 , wherein the electrically operated oil pump ( 2 ) is connected by a suction line ( 9 ) to an oil filter for drawing oil from an oil sump of the transmission housing ( 5 ), a transmission oil pump driven by a drive engine is connected by a further suction line to the oil filter. 
     
     
         18 . The arrangement of the electrically operated oil pump ( 2 ) according to  claim 11 , wherein the electrically operated oil pump ( 2 ) is connected by a suction line ( 9 ) to an oil filter, and the oil filter is only associated with the electrically operated oil pump ( 2 ). 
     
     
         19 . The arrangement of the electrically operated oil pump ( 2 ) according to  claim 18 , wherein the oil filter, only associated with the electrically operated oil pump ( 2 ), is arranged in an at least largely closed inside space of the transmission housing ( 5 ). 
     
     
         20 . The arrangement of the electrically operated oil pump ( 2 ) according to claim  151  wherein at least one of the pressure line ( 8 ) and the suction line ( 9 ) of the electrically operated oil pump ( 2 ) is partially integrated in one of the housing ( 3 ) or the transmission housing ( 5 ). 
     
     
         21 . An electrically operated oil pump ( 2 ) of an automatic transmission ( 1 ), the electrically operated oil pump ( 2 ) comprising an electric portion ( 6 ) and a hydraulic portion ( 7 ) and the automatic transmission ( 1 ), a housing comprising a transmission housing portion ( 5 ) and a converter or clutch housing portion ( 3 ),
 wherein the electrically operated oil pump ( 2 ) is supported by the converter or clutch housing portion ( 3 ) such that the electric portion ( 6 ) of the electrically operated oil pump ( 2 ) is located exterior of the converter or clutch housing portion ( 3 ) and the hydraulic portion ( 7 ) of the electrically operated oil pump ( 2 ) in an interior of the converter or clutch housing portion ( 3 ).

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