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US 6,669,118 B2Granted
Coherent jet nozzles for grinding applications
AssigneeSaint-Gobain Abrasives, Inc.
InventorJohn A. Webster
Life of this patent
Estimating the term…
Abstract
A nozzle assembly and method is configured to apply coherent jets of coolant in a tangential direction to the grinding wheel in a grinding process, at a desired temperature, pressure and flowrate, to minimize thermal damage in the part being ground. Embodiments of the present invention may be useful when grinding thermally sensitive materials such as gas turbine creep resistant alloys and hardened steels. Flowrate and pressure guidelines are provided to facilitate optimization of the embodiments.
Claims21
A nozzle assembly comprising:
- a plenum chamber;
- a modular front plate removably fastened to a downstream side of said plenum chamber;
- at least one coherent jet nozzle disposed for transmitting fluid through said modular front plate;
- the coherent jet nozzle having a proximal end portion having a downstream axis and a transverse dimension D;
- a distal end portion;
- the distal end portion decreasing in transverse dimension in the downstream direction;
- the distal end portion terminating at an outlet having a transverse dimension d;
- wherein the ratio D:d is at least about 2:1;
- and
- a conditioner disposed within said plenum chamber.
7 more elements
A nozzle assembly comprising:
- a plenum chamber configured to pass coolant in a downstream fluid flow direction therethrough;
- a plurality of coherent jet nozzles disposed at a downstream end of said plenum chamber;
- the coherent jet nozzles each having a proximal end portion having a downstream axis and a transverse dimension D;
- a distal end portion;
- the distal end portion decreasing in transverse dimension in the downstream direction;
- and
- the distal end portion terminating at an outlet having a transverse dimension d;
- wherein the ratio D:d is at least about 2:1.
5 more elements
A nozzle assembly comprising:
- a plenum chamber;
- a modular card removably fastenable to a downstream side of said plenum chamber;
- at least one coherent jet nozzle disposed within said card for transmitting fluid from said plenum chamber therethrough;
- said at least one coherent jet nozzle being configured to generate a spray that increases in transverse dimension by no more than about 4 times over a distance of about 30.5 cm from the nozzle;
- and
- a conditioner disposed within said plenum chamber.
3 more elements
A nozzle assembly comprising:
- means for providing a plenum chamber;
- nozzle means for generating a spray that increases in transverse dimension by no more than about 4 times over a distance of about 30.5 cm;
- means for removably coupling the nozzle means to a downstream side of said plenum chamber means;
- and
- means for conditioning fluid disposed within said plenum chamber.
2 more elements
Dependencies are inferred from the claim text.