The invention relates to a pneumatic spring brake actuator, in particular a parking and service brake actuator for use in a commercial vehicle, said spring brake actuator comprising a housing comprising a housing base,a spring brake piston accommodated at least partially in said housing, said spring brake piston being configured to reciprocatingly move between a retained position and an extended position along a longitudinal axis as a function of pressure inside a spring brake pressure chamber, a compression spring located between the housing and the spring brake piston, said compression spring being effective to push the spring brake piston towards the extended position, characterized in that the spring brake piston comprises: a service brake pressure chamber, a piston chamber, and a service brake piston separating the service brake pressure chamber from the piston chamber, wherein said service brake piston is configured to reciprocatingly move between a retained position and an extended position along said longitudinal axis as a function of pressure inside the service brake pressure chamber.
PNEUMATIC SPRING BRAKE ACTUATOR
PNEUMATISCHER FEDERBREMSZYLINDER
ACTIONNEUR DE FREIN À RESSORT PNEUMATIQUE
2024-08-14
Patent
Electronic Resource
English
SPRING BRAKE ACTUATOR AND BRAKE RELEASE MECHANISM FOR SUCH SPRING BRAKE ACTUATOR
European Patent Office | 2023
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