Turbine for a fluid-ejecting device, fluid-ejecting device, and assembly comprising such a device and tool

Turbine for a fluid spraying device, comprising:

• a turbine body;
• a rotor designed to drive a bowl in rotation about a common axis of rotation, the rotor surrounded by said turbine body in a plane perpendicular to the common axis;
• and
• a tube having an external face and an internal face, mounted coaxially with said turbine body and intended to be mounted coaxially with a skirt, wherein the tube is movable in rotation about the common axis relative to said turbine body, and wherein said turbine body is designed to prevent translation of the tube with respect to said turbine body parallel to the common axis, the tube comprising:
• a primary portion surrounded by said turbine body;
• and
• a secondary portion intended to be surrounded by the skirt, the secondary portion being offset in the downstream direction relative to said primary portion, the secondary portion comprising, on the external face, a first thread to engage a second thread formed on the skirt to press the skirt against said turbine body,
• wherein said turbine body has a first end face delimiting an extremity of said turbine body along the common axis, the skirt bears against the first end face of said turbine body, and the contact between the skirt and the first end face is perpendicular to the common axis.