Patent ID: 7347509

Claim:
A diaphragm-type accumulator for a slip-controlled vehicle brake system which is arranged in a hydraulic connection between a wheel brake ( 6 ) and a hydraulic pump ( 8 ), with a housing bore, an inlet, an outlet, and a media-separating element in the housing bore ( 3 ) including a diaphragm ( 2 ) made of an elastic material for the purpose of pressure fluid intake, wherein the diaphragm ( 2 ) is acted upon indirectly by an accumulator spring ( 21 ), with a diaphragm plate ( 20 ) interposed, and wherein the diaphragm plate ( 20 ) has a concave design with respect to the pressure fluid inlet ( 4 ) and wherein the diaphragm plate ( 20 ) is shaped like a bowl with a bottom ( 22 ), with a wall ( 23 ), and with an edge ( 24 ), and wherein the accumulator spring ( 21 ) surrounds the wall ( 23 ) and abuts on the edge ( 24 ).