Streaming

Claim 2

A fluid nozzle, comprising A BODY DEFINING AN AXIAL FLOW PASSAGE HAVING INLET AND OUTLET ENDS, A PORTION AT SAID INLET END DEFINING AN AXIAL INLET TO SAID PASSAGE, THE AREA OF SAID INLET BEING LESS THAN THE AREA OF SAID PASSAGE DIRECTLY DOWNSTREAM THEREOF, OPENINGS INTO SAID PASSAGE BEING PROVIDED IN SAID PORTION RADIALLY OUTWARDLY OF SAID AXIAL INLET, AND AN EVEN PLURALITY OF RADIAL ORIFICES IN SAID BODY BETWEEN SAID ENDS, SAID ORIFICES COMMUNICATING WITH SAID PASSAGE AND BEING ARRANGED IN COAXIAL PAIRS 180* APART.

Claim 3

The nozzle of claim 1 wherein said passage has a cylindrical wall and said inlet is of circular cross section.

Claim 4

The nozzle of claim 2 wherein said passage is a counterbore to said inlet.

Claim 5

The nozzle of claim 1 wherein said body has a countersink at said outlet end.

Claim 6

The nozzle of claim 1 wherein said portion is a thin wall.

Claim 7

The nozzle of claim 1 wherein said openings are holes of circular cross section, each being included in a pair of said holes spaced 180* apart at opposite sides of said axial inlet.

Claim 8

The nozzle of claim 2 wherein said radial orifices are directly adjacent the outlet end of said cylindrical wall.

Claim 9

The nozzle of claim 7 wherein said body has a countersink at said outlet end of said passage, directly downstream of said cylindrical wall and tangent to said radial orifices.

Claim 10

The nozzle of claim 1 wherein there are four of said radial orifices spaced 90* apart.

Claim 11

The nozzle of claim 1 wherein said area of said inlet differs from the total area of said radial orifices by no more than half the area of any one of said radial orifices.

Claim 12

A fluid nozzle, comprising a body defining an axial flow passage having inlet and outlet ends, a portion at said inlet end defining an axial inlet to said passage, the area of said inlet being less than the area of said passage directly downstream thereof, and an even plurality of radial orifices in said body between said ends, said orifices communicating with said passage and being arranged in coaxial pairs 180* apart, said body having at said outlet end a flange extending radially outwardly of said orifices, whereby said nozzle is adapted to be mounted in a tube with said flange in contact with the inner wall of said tube, so that said tube and said body define upstream of said flange an annular passage surrounding said nozzle and communicating with said orifices, said tube being larger than said body and having an inlet opening of a diameter approximately equal to that of said body at said inlet end.

Claim 13

A fluid nozzle, comprising a body defining an axial flow passage having inlet and outlet ends, a portion at said inlet end defining an axial inlet to said passage, the area of said inlet being less than the area of said passage directly downstream thereof, and an even plurality of radial orifices in said body between said ends, said orifices communicating with said passage and being arranged in coaxial pairs 180* apart, said body having at said outlet end a flange extending radially outwardly of said orifices, whereby said nozzle is adapted to be mounted in a tube with said flange in contact with the inner wall of said tube, so that said tube and said body define upstream of said flange an annular passage surrounding said nozzle and communicating with said orifices, said tube being larger than said body and having an inlet opening of a diameter approximately equal to that of said body at said inlet end.