EP 4269736 A1 20231101 - DOOR ACTUATOR
Title (en)
DOOR ACTUATOR
Title (de)
TÜRBETÄTIGER
Title (fr)
ACTIONNEUR DE PORTE
Publication
Application
Priority
EP 22170791 A 20220429
Abstract (en)
The present invention concerns a door actuator (1) for opening and/or closing a door, comprising a housing (2) with a housing wall (3), the housing wall (3) enclosing a central inner space (4), the central inner space (4) accommodates hydraulic fluid and an actuating mechanism (5) for actuating the door, and at least one volume compensator (6), wherein each volume compensator (6) comprising a separate chamber (10) formed in the housing wall (3), a fluid compartment (11) within the chamber (10), the fluid compartment (11) being fluidly connected to the central inner space (4), an enclosed gas compartment (12) within the chamber (10), and a separator (14) separating the fluid compartment (11) from the gas compartment (12), the separator (14) being displaceable to vary the volume of the gas compartment (12) in dependence on the pressure in the fluid compartment (11).
IPC 8 full level
E05F 3/10 (2006.01)
CPC (source: EP)
E05F 3/10 (2013.01); E05F 3/102 (2013.01); E05Y 2201/10 (2013.01); E05Y 2800/252 (2013.01); E05Y 2800/28 (2013.01); E05Y 2900/132 (2013.01); E05Y 2900/134 (2013.01)
Citation (search report)
- [XYI] DE 102019209264 A1 20201231 - GEZE GMBH [DE]
- [YA] DE 102015223747 B3 20161215 - GEZE GMBH [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 22170791 A 20220429