Pump and method for its manufacture

Abstract

A method for manufacturing a pump, in particular for a vehicle brake system, includes forming a blind hole in a pump housing starting from a region in the pump housing in which an eccentric opening is provided to accommodate a drive eccentric. The method further includes inserting a pump cylinder into the blind hole from the region of the eccentric opening and securing the pump cylinder in the blind hole from the region of the eccentric opening. A pump is constructed from the method.

1 . A pump, comprising:
 a pump housing forming a blind hole, the blind hole being formed starting from a region in the pump housing in which an eccentric opening is configured to receive a drive eccentric; and   a pump cylinder inserted into the blind hole from the region of the eccentric opening, said pump cylinder being fixed in the blind hole from the region of the eccentric opening.   
     
     
         2 . The pump as claimed in  claim 1 , wherein components of an outlet valve are arranged between a base of the blind hole. 
     
     
         3 . The pump as claimed in  claim 1 , wherein the pump cylinder is a deep-drawn part. 
     
     
         4 . The pump as claimed in  claim 1 , wherein the pump cylinder is formed in a cup shape with an annular wall and a base surface. 
     
     
         5 . The pump as claimed in  claim 1 , wherein the pump cylinder is formed with an annular disc facing the region of the eccentric opening. 
     
     
         6 . The pump as claimed in  claim 1 , wherein the pump cylinder is fixed by a guide ring placed in the blind hole and configured to axially guide a pump piston displaceable in the pump cylinder. 
     
     
         7 . A method for manufacturing a pump, comprising:
 forming a blind hole in a pump housing, the forming of the blind hole starting from a region in the pump housing in which an eccentric opening is configured to receive a drive eccentric;   inserting a pump cylinder into the blind hole from the region of the eccentric opening; and   fixing the pump cylinder in the blind hole from the region of the eccentric opening.   
     
     
         8 . The method as claimed in  claim 7 , further comprising arranging components of an outlet valve in the blind hole before the pump cylinder is inserted into the blind hole. 
     
     
         9 . The method as claimed in  claim 7 , wherein the pump cylinder is formed by deep drawing. 
     
     
         10 . The method as claimed in  claim 9 , further comprising forming at least one opening in the pump cylinder before the pump cylinder is deep drawn. 
     
     
         11 . The method as claimed in  claim 7 , further comprising forming the blind hole by a hole which is formed through the eccentric opening before the blind hole is formed. 
     
     
         12 . The pump as claimed in  claim 1 , wherein the pump is for a vehicle brake system. 
     
     
         13 . The method as claimed in  claim 7 , wherein the pump is for a vehicle brake system.