Jet or spray producing apparatus
OwnerBernard Eaton Hartinventor
Life of this patent
Estimating the term…
Abstract
In apparatus for producing a rotating jet or spray of fluid, e.g. water for cleaning purposes, a nozzle for producing the jet or spray is mounted for rotation about a first axis and is arranged with the axis of the nozzle spaced from the first axis and inclined thereto such that fluid leaving the nozzle will exert a force on the nozzle tending to rotate it about the first axis, and means are provided driven by the nozzle for causing a flow of the medium in which the apparatus is situated such as will generate a force on the apparatus in the direction of the first axis.
Claims14
Apparatus for producing a rotating jet surface-treating fluid to be directed against a surface perpendicular to the axis of rotation of the jet, said apparatus comprising:
- a nozzle directed along a first axis and adapted to produce a jet of surface-treating fluid along said axis;
- means for connecting said nozzle to a supply of surface-treating fluid under pressure;
- means mounting said nozzle for rotation about a second axis spaced from said nozzle axis, said second axis being perpendicular to the surface and said nozzle axis being inclined to said second axis so that fluid leaving said nozzle will exert a force on said nozzle which will rotate said nozzle about said second axis;
- casing means defining a chamber generally coaxial with said second axis and in which said nozzle will rotate, said casing means defining an opening through which said rotating jet from said nozzle will emerge and comprising first and second cover members extending radially of said second axis and axially delimiting said chamber, said second cover member being positioned between said surface and said first cover member when said jet is directed against said surface, and a peripheral member peripherally delimiting said chamber;
- skirt means extending axially from said casing means to peripherally enclose a space into which said jet will emerge from said opening, said space being axially delimited by said second cover member and said surface;
- said casing means defining axial aperture means in the region of said second axis and peripheral aperture means in the region of said periphery of said chamber, one of said aperture means communicating with said space and the other of said aperture means communicating with the exterior of said apparatus;
- rotary fluid impeiler means in said chamber for driving a pressure-changing fluid through said chamber from said axial aperture means to said peripheral aperture means for changing the pressure in said space relative to the pressure on the exterior of said apparatus;
- and
- means mounting said rotary fluid impeller means for rotation by and with said nozzle.
An apparatus for producing a rotating jet of fluid to be directed against a surface, the apparatus comprising a nozzle for producing the jet or spray of fluid, means for connecting the nozzle to a supply of fluid under pressure, means mounting the nozzle for rotation about a first axis spaced from the axis of the nozzle and which first axis is substantially perpendicular to the surface when said jet is directed against said surface, the nozzle axis being inclined relative to the first axis such that fluid leaving the nozzle will exert a force on the nozzle tending to rotate it about the first axis, and means driven by the nozzle for causing a flow of the fluid medium in which the apparatus is situated such as will generate a force on the apparatus in the direction of the first axis, said force generating means comprising at least one elongate propelling member extending radially of the first axis and rotatable about the first axis by rotation of the nozzle for propelling the medium radially outwardly thereof, and cover means defining a radially extending chamber in which said elongate means extend and having inlet and outlet means for the medium, said cover means comprising inner and outer generally radially extending cover members, of which the inner member will, in use, be positioned between the propelling member and the surface.
Dependencies are inferred from the claim text.