Motor pump aggregate

Abstract

The present invention relates to a motor-pump aggregate with a motor and a piston pump, more particularly for electronically controlled brake systems of motor vehicles, wherein pistons of the pump are drivable by way of an eccentric that is connected to a shaft of the motor and are connected by means of a coupling ring, and wherein the motor has a holding plate. According to the present invention, a projection is provided on the holding plate and extends until into the range of motion of the coupling ring. This provides a stop for the coupling ring, on the one hand, and an improved outlet for leakage fluid of the pump, on the other hand.

1 - 25 . (Cancelled)  
     
     
         26 . A motor pump assembly, comprising: 
 a piston pump having one or more pistons;    a motor having a shaft, wherein said shaft is coupled to said piston pump;    wherein said one or more pistons of said piston pump are driven by an eccentric driver by said shaft;    a holding plate including a fire wall portion and a contact terminal portion;    wherein said fire wall portion impedes said ingress of foreign bodies from said piston pump to said motor, and wherein said contact terminal portion includes an electrical contact terminal adapted to interface with an electric connector; and    a reservoir for collecting leakage fluid provided between said housing and said holding plate, wherein, when said motor pump assembly is in a horizontal mounting position, said reservoir is located under said contact terminal portion.    
     
     
         27 . The motor pump assembly of  claim 26 , wherein said reservoir is positioned substantially opposite said contact terminal portion.  
     
     
         28 . The motor pump assembly of  claim 26 , wherein said reservoir is a recess residing in said holding plate to form at least a portion of a reservoir between said holding plate and said pump housing, wherein said recess is positioned opposite said pump housing to permit fluid leakage through a leakage fluid channel located between said pump housing and said holding plate.  
     
     
         29 . The motor pump assembly of  claim 28 , wherein said reservoir is also partially formed by a wall portion of said pump housing.  
     
     
         30 . The motor pump assembly of  claim 28 , wherein said reservoir extends substantially perpendicularly to said leakage fluid channel that extends from an outlet channel that accumulates leakage fluid.  
     
     
         31 . The motor pump assembly of  claim 26 , wherein said holding plate includes a housing for mounting said electrical contact terminal therein.  
     
     
         32 . The motor pump assembly of  claim 26 , wherein said electrical contact terminal is floatingly mounted to said housing.  
     
     
         33 . The motor pump assembly of  claim 26 , wherein said electrical contact terminal has a “U” shape.  
     
     
         34 . The motor pump assembly of  claim 26 , where said holding plate includes means for suppressing electrical interferences.  
     
     
         35 . The motor pump assembly of  claim 26 , wherein said holding plate includes means for housing electrical brushes.  
     
     
         36 . A motor pump assembly, comprising: 
 a piston pump having one or more pistons;    a motor having a shaft, wherein said shaft is coupled to said piston pump;    wherein said one or more pistons of said piston pump are driven by an eccentric driver by said shaft;    a holding plate including a fire wall portion and a contact terminal portion; and    wherein said fire wall portion impedes said ingress of foreign bodies from said piston pump to said motor, and wherein said contact terminal portion includes an electrical contact terminal adapted to interface with an electric connector.    
     
     
         37 . The motor pump assembly of  claim 36 , wherein said holding plate includes a housing for mounting said electrical contact terminal therein.  
     
     
         38 . The motor pump assembly of  claim 36 , wherein said electrical contact terminal is floatingly mounted to said housing.  
     
     
         39 . The motor pump assembly of  claim 36 , wherein said electrical contact terminal has a “U” shape.  
     
     
         40 . The motor pump assembly of  claim 36 , where said holding plate includes means for suppressing electrical interferences.  
     
     
         41 . The motor pump assembly of  claim 36 , wherein said holding plate includes means for housing electrical brushes.  
     
     
         42 . A motor pump assembly, comprising: 
 a piston pump having one or more pistons;    a motor having a shaft, wherein said shaft is coupled to said piston pump;    wherein said one or more pistons of said piston pump are driven by an eccentric driver by said shaft;    a holding plate interposed between said motor and a pump housing; and    a recess residing in said holding plate to form at least a portion of a reservoir between said holding plate and said pump housing, wherein said reservoir collects leakage fluid.    
     
     
         43 . The motor pump assembly of  claim 42 , wherein said reservoir is also partially formed by a wall portion of said pump housing.  
     
     
         44 . The motor pump assembly of  claim 42 , wherein said reservoir is positioned substantially opposite said contact terminal.  
     
     
         45 . The motor pump assembly of  claim 42 , wherein said reservoir extends substantially perpendicularly to a leakage fluid channel that extends from an outlet channel that accumulates leakage fluid.  
     
     
         46 . A motor pump assembly, comprising: 
 a piston pump having one or more pistons;    a motor having a shaft, wherein said shaft is coupled to said piston pump;    wherein said one or more pistons of said piston pump are driven by an eccentric driver by said shaft;    a holding plate including a contact terminal portion, wherein said holding plate is interposed between said motor and a pump housing; and    a recess residing in said holding plate to form at least a portion of a reservoir between said housing plate and said pump housing, wherein said reservoir collects leakage fluid, wherein, when said motor pump assembly is in a horizontal mounting position, said reservoir is located under said contact terminal.    
     
     
         47 . The motor pump assembly of  claim 46 , wherein said reservoir is also partially formed by a wall portion of said pump housing  
     
     
         48 . The motor pump assembly of  claim 46 , wherein said reservoir is positioned substantially opposite said contact terminal.  
     
     
         49 . The motor pump assembly of  claim 46 , wherein said reservoir extends substantially perpendicularly to a leakage fluid channel that extends from an outlet channel that accumulates leakage fluid.