Patent ID: 7851082

Claim:
An accumulator having a housing which comprises a number of cells and a block cover which closes the housing, and which comprises a lower cover ( 1 ) and an upper cover ( 2 ) between which forms a gas space for acid separation, said gas space is sub-divided into a plurality of hollow spaces ( 3 - 8 ), in accordance with the number of cells and which has at least one gas discharge opening, a filling opening ( 9 - 14 ) and a gas outlet location ( 15 - 20 ), which opens in the associated hollow space ( 3 - 8 ) being provided with spacing from the filling opening ( 9 - 14 ) in the lower cover ( 1 ), for each cell, wherein each gas outlet location ( 15 - 20 ) is of such size that when the accumulator is tilted for a short time with an increasing flow of acid out of the cell, a reduced pressure is formed in that cell and prevents the acid from continuing to flow out when the respective hollow space ( 3 - 8 ) is full so that no more acid can be discharged from the cell than is received by the hollow space ( 3 - 8 ) which is associated therewith, wherein each hollow space ( 3 - 8 ) comprises a first region ( 3 . 1 - 8 . 1 ) and a second region ( 3 . 2 - 8 . 2 ) that discharges into said gas discharge opening, wherein said first region ( 3 . 1 - 8 . 1 ) and said second region ( 3 . 2 - 8 . 2 ) are each connected to a region of the filling opening ( 9 - 14 ), wherein said housing additionally comprises a plurality of sealing stoppers ( 23 ) such that the filling openings ( 9 - 14 ) are each sealed or sealable by a respective sealing stopper ( 23 ), wherein the respective sealing stoppers ( 23 ) each have a first seal ( 25 ) in relation to the upper cover ( 2 ) and a second seal ( 27 ) in relation to the lower cover ( 1 ), wherein a tangential gas flow path is defined between the respective sealing stoppers ( 23 ) and filling openings ( 9 - 14 ) which receive the respective sealing stoppers and, wherein the flow path is designed as a ring chamber ( 31 ) between the first and second seals ( 25 , 27 ), said accumulator further comprising a central vent channel ( 34 ) arranged such that the hollow spaces ( 3 - 8 ) are arranged to discharge the acid into the central vent channel ( 34 ) having at least two chambers.