Hydraulic cylinder and restraint system

A hydraulic cylinder for a restraint system comprising:

• an outer housing;
• an inner housing;
• a pressure accumulator;
• and
• a shut-off valve switchable between a release position and a shut-off position,
• wherein the inner housing is disposed inside the outer housing, and
• wherein the inner housing comprises a piston, a first working chamber and a second working chamber separated from the first working chamber by the piston,
• wherein the first working chamber is connected to the pressure accumulator via a first line arrangement and the second working chamber is connected to the pressure accumulator via a second line arrangement,
• wherein the pressure accumulator comprises a storage space for hydraulic fluid, and
• wherein the shut-off valve is disposed in the second line arrangement and blocks the second line arrangement in the shut-off position,
• wherein the pressure accumulator is disposed between the outer housing and the inner housing.