Adjustable rotating water jet tool for three dimensional cleaning

A cleaning tool movable along a longitudinal axis for cleaning an inner surface of an hollow object, a rotatable nozzle structure having first support means for rotatably supporting the nozzle structure on said tool for rotation relative to said tool about said longitudinal axis during a cleaning operation, said rotatable nozzle structure having second support means for rotatably supporting the nozzle structure on said first support means for rotation relative to said tool about another axis perpendicular to said longitudinal axis,

• said nozzle structure having a plurality of nozzle devices uniformly spaced around said other axis and at one location along said other axis,
• means for connecting each nozzle device to a common source of high pressure fluid to be discharged from the respective nozzles at the same pressure and flow rate,
• said nozzle devices being arranged to direct high pressure jet streams in a common plane perpendicular to said other axis and being similarly angularly oriented in their respective positions with respect to said other axis and of similar jet forming configuration to each apply a like jet-reaction torque to said nozzle structure to rotate it in one direction about said other axis in response to fluid jets discharged from the nozzle devices,
• adjustable securing means for adjustably securing and releasably clamping each said nozzle device to said nozzle structure in an identified like position of angular orientation, said adjustable securing means including means for selectably pivotably adjusting the position of angular orientation of each nozzle device parallel to said common plane and about a pivot axis parallel to and uniformly spaced from said other axis to at least one other identified clamped position of angular orientation with respect to said other axis, with each such other identified clamped position being alike for all nozzle devices, and
• means for mechanically interconnecting said first and second support means to cause rotation of said nozzle structure in response to said jet reaction to apply torque for rotating the nozzle structure about both said axes.

A cleaning tool movable along a longitudinal axis for cleaning an inner surface of a hollow object, a rotatable nozzle structure having first support means for rotatably supporting the nozzle structure on said tool for rotation relative to said tool about said longitudinal axis during a cleaning operation, said rotatable nozzle structure having second support means for rotatably supporting the nozzle structure on said first support means for rotation relative to said tool about another axis perpendicular to said longitudinal axis,

• said nozzle structure having a plurality of nozzle devices uniformly spaced around said other axis and at one location along said other axis,
• input means for connecting said tool to a common source of high pressure fluid to be discharged as high pressure jet streams from the respective nozzle devices at the same pressure and flow rate,
• said nozzle devices being similarly angularly oriented in their respective positions with respect to said other axis and of similar jet forming configuration to each apply a like jet-reaction torque to said nozzle structure to rotate it in one direction about said other axis in response to fluid jets discharged from the nozzle devices,
• adjustable securing means for adjustably securing each said nozzle device to said nozzle structure in an identified like position of orientation relative said other axis, said adjustable securing means including means for selectably adjusting the position of orientation of each nozzle device to at least one other identified position of orientation with respect to said other axis, with each such other position being alike for all nozzle devices, and
• means for mechanically interconnecting said first and second support means to cause rotation of said nozzle structure in response to said jet reaction to apply torque for rotating the nozzle structure about both said axes, said first support means having a sealed high pressure fluid passage with a first end of said passage rotatably connected to said input means and a second end of said passage rotatably connected to said nozzle structure, high pressure seal means at each end of said passage to seal the rotatable connection at each respective end, said first support means having a first hollow tubular shaft enclosing a first portion of the passage and journalled in said tool for rotational movement about said longitudinal axis,
• said first support means having a second hollow tubular shaft extending transversely of said longitudinal axis and enclosing an outlet portion of the passage,
• said second shaft having means for journalling said nozzle structure on said second shaft for rotational movement about said other axis.