Patent ID: 9133859
Filing Date: 2015-09-15
Classification: F15B

Abstract:
1. An accumulator, comprising: a housing having a head part forming a closure of said housing, said head part having a cover part and a retaining body with a bell shape and a jacket; a flexible separating diaphragm in said housing, said retaining body anchoring an opening edge of said diaphragm and extending within said housing beyond a connection between said cover part and said housing, said diaphragm having an inside surface engaging said retaining body and having an outside surface engaging said cover part and said housing on opposite axial sides of the connection in all diaphragm positions thereof; a first compartment in said housing between said housing and said diaphragm and filled with a storage medium; a support body in said housing and within said diaphragm, said support body being a body of revolution and having at least one lateral wall opening; a second compartment between said diaphragm and said support body, said first and second compartments varying in respective sizes thereof resulting from movements of said diaphragm as a function of filling state of said storage medium, said second compartment being enlarged when said storage medium is removed from said housing and being reduced in size when said housing is filled with said storage medium; a third compartment encompassed by said support body and located in said housing, said second compartment being connected to said third compartment in fluid communication via said lateral wall opening, said second and third compartments being filled with a working medium, said head part bordering at least one of said second compartment and said third compartment; and a fourth compartment in said housing bordering said third compartment, said jacket surrounding said fourth compartment.