Hydraulic accumulator

摘要

A hydraulic accumulator has a first housing shell (2) and a second housing shell (3). The opening edges (5, 6) of the shells overlap in relation to the longitudinal axis (4) of the hydraulic accumulator (1) such that they define a partial volume of the hydraulic accumulator (1). The accumulator also has a separating element (7) separating inner working chambers (9, 10) from each other within the accumulator housing (8) in a medium-tight manner. The housing is formed by the housing shells (2, 3). The opening edge (5) of the radially outer-lying housing shell (2) is positively coupled to the circumference of the radially inner-lying housing shell (3) by reshaping.

主权项

1. A hydraulic accumulator with a longitudinal axis, comprising:
a first housing shell having a first opening edge and a circumferential groove on an inside surface of said first housing shell spaced axially along the longitudinal axis from said first opening edge; a second housing shell having a second opening edge overlapping said first opening edge in an axially extending overlapping area parallel to the longitudinal axis thereof to define a partial volume of the hydraulic accumulator and to form an accumulator housing; a diaphragm of elastomer material separating first and second inner chambers in said first and second housing shells, respectively, in a medium tight manner inside said accumulator housing, said diaphragm contacting said groove; and portion of said first housing shell disposed radially outwardly of said second housing shell being bent radially inwardly against said second housing shell forming a positive locking connection between said housing shells.