초록 ▼

A method and apparatus for producing a coherent stream of high velocity abrasive laden liquid. The method includes allowing the particles to assume the direction and velocity of a high velocity jet of liquid. This method also allows concentration of particles in the center of the flow of liquid to r

A method and apparatus for producing a coherent stream of high velocity abrasive laden liquid. The method includes allowing the particles to assume the direction and velocity of a high velocity jet of liquid. This method also allows concentration of particles in the center of the flow of liquid to reduce nozzle wear and increase cutting efficiency. The apparatus includes a nozzle having a converging section attached to a straight section that is sufficiently large that the abrasive particles approach the velocity of the fluid jet before exit of the nozzle.

대표청구항 ▼

A method for producing an abrasive laden jet of high velocity liquid within a pressure range of about 5000-100,000 p.s.i. at the output of a jet producing apparatus, said method comprising the steps of: generating a jet of high velocity liquid; and introducing particles of abrasive into said jet; an

A method for producing an abrasive laden jet of high velocity liquid within a pressure range of about 5000-100,000 p.s.i. at the output of a jet producing apparatus, said method comprising the steps of: generating a jet of high velocity liquid; and introducing particles of abrasive into said jet; and, orienting said particles velocity vector to that of said jet; and accelerating said particles through a nozzle arrangement having a downstream-most continuous straight walled cylindrical passageway section which defines an outlet end serving as said output to a speed of at least about 80% of that of said jet as the jet exits the apparatus output and imparting to said particles a component of movement toward the center of said jet sufficient to concentrate said particles at the jet\s center as the jet exits said apparatus output, said straight walled passageway section of said nozzle arrangement having a length which is between about 25 and 100 times it\s diameter so as to impart said speed to said particles and concentrate them in the center of the jet.