SPACER SLEEVE FOR SEPARATION SUB-CYLINDER, SPACER SLEEVE ASSEMBLY AND SEPARATION SUB-CYLINDER

Provided is a spacer sleeve (1) for separation sub-cylinder, a threaded protrusion (12) is provided on the outer peripheral surface of a base body (10) of the spacer sleeve (1), the threaded protrusion is used for engaging with a threaded recess (20) of the inner peripheral surface of the housing (2). The spacer sleeve avoids or substantially reduces the risk of generating debris during assembly process; the spacer sleeve itself and the dimension of the housing allow for greater tolerances, therefore, the manufacturing process requirement is lower; the threaded protrusion further enhances the axial positioning of the spacer sleeve and the housing to prevent accidental detachment; and the spacer sleeve has a wide range of applications, for example, used for the centering separation sub-cylinder and external separation sub-cylinder. Provided are also a spacer sleeve assembly and a separation sub-cylinder. L'invention concerne un manchon d'espacement (1) pour un sous-cylindre de séparation, une saillie filetée (