Ultra-high pressure nozzle for cleaning pipes, with seal

A nozzle, driven by a pressure-transmitting medium, for cleaning pipes, the nozzle comprising:

• a stator part including a stator part channel;
• a rotor part, held by a housing, and including a rotor part channel, the rotor part attachable rotatably relative to the stator part and supported rotatably, about a longitudinal axis of the nozzle relative to the stator part, by at least one roller bearing;
• a centering aid formed as a centering protrusion on the stator part and a centering aid formed as a centering indentation on the rotor part, the centering protrusion configured for engaging with the centering indentation when the nozzle is mounted;
• and
• a seal forming a transition from the stator part channel to the rotor part channel, the seal including:
• a rotor bearing hollow body having a conical outer contour and including a rotor bearing channel crossing the rotor bearing hollow body in a longitudinal direction, the rotor bearing hollow body arrangeable such that the rotor bearing hollow body is fixed and at least partially protrudes into the rotor part channel of the rotor part;
• and
• a stator bearing hollow body having a cylindrical shape opening into a collar and including a stator bearing channel crossing the stator bearing hollow body in a longitudinal direction, the stator bearing hollow body arrangeable such that the stator bearing hollow body is fixed and at least partially protrudes into the stator part channel of the stator part,
• wherein, when the nozzle is mounted, a front surface of the rotor bearing hollow body directly contacts an opposing front surface of the stator bearing hollow body forming a flat plane at the seal perpendicular to a direction of flow of the pressure-transmitting medium such that the rotor bearing hollow body and the stator bearing hollow body do not extend over one another in a direction of the longitudinal axis.

A nozzle, driven by a pressure-transmitting medium, for cleaning pipes, the nozzle comprising:

• a stator part including a stator part channel;
• a rotor part having a rotor bearing pin configured for insertion into a recess on the stator part, the rotor part held by a housing, and including a rotor part channel, the rotor part attachable rotatably relative to the stator part and supported rotatably, about a longitudinal axis of the nozzle relative to the stator part, by at least one roller bearing;
• a discharge chamber for collection of the pressure-transmitting medium arranged between the stator part and the rotor part and surrounded by the housing;
• and
• a seal forming a transition from the stator part channel to the rotor part channel, the seal including:
• a rotor bearing hollow body having a conical outer contour and including a rotor bearing channel crossing the rotor bearing hollow body in a longitudinal direction, the rotor bearing hollow body arrangeable such that the rotor bearing hollow body is fixed and at least partially protrudes into the rotor part channel of the rotor part;
• and
• a stator bearing hollow body having a cylindrical shape opening into a collar and including a stator bearing channel crossing the stator bearing hollow body in a longitudinal direction, the stator bearing hollow body arrangeable such that the stator bearing hollow body is fixed and at least partially protrudes into the stator part channel of the stator part;
• wherein, when the nozzle is mounted, a front surface of the rotor bearing hollow body directly contacts an opposing front surface of the stator bearing hollow body forming a flat plane at the seal perpendicular to a direction of flow of the pressure-transmitting medium such that the rotor bearing hollow body and the stator bearing hollow body do not extend over one another in a direction of the longitudinal axis;
• and
• wherein, when pressure is applied to the nozzle as mounted, a stream of the pressure-transmitting medium flows through the stator part channel through the seal into the rotor part channel and an amount of the pressure-transmitting medium passes through the front surface of the stator bearing hollow body and the front surface of the rotor bearing hollow body into the discharge chamber.