US 6,742,361 B1 · Apparatus for producing a cooling or lubricating spray

Abstract

An apparatus for delivering a spray of cooling liquid to opposed shear blades of an apparatus for shearing a stream of molten glass into gobs, the apparatus having liquid outlets (24, 26) that lead to spray nozzles. A liquid is intermittently delivered at a low pressure to the liquid outlets (24, 26) from separate liquid inlets (20, 22, respectively), each of the outlets (24, 26) having a solenoid valve (28, 30, respectively), in a line leading thereto. The nozzles that receive liquid from the outlets (24, 26) are periodically purged of accumulated coagulated coolant or other debris by pumping coolant therethrough at a substantially higher pressure. To this end, each of the liquid outlets (24, 26) is connected to an outlet from a rodless cylinder (32, 34, respectively), and high pressure air from a common inlet (36) is intermittently imposed on an inlet to each rodless cylinder (32, 34) to urge pistons in the rodless cylinders toward the outlets from the rodless cylinders (40, 42, respectively) to expel liquid coolant in the rodless cylinders (40, 42) toward the liquid outlets (24, 26, respectively) at a substantially higher pressure. A solenoid valve (50, 52) is positioned in the high pressure air inlets to the rodless cylinders (32, 34, respectively) to limit the pressurization of the liquid outlets (24, 26) on a timed basis so that nozzle clogging is eliminated.

Claims8

Dependent claims

Apparatus for delivering a liquid to nozzles for spraying onto a surface, said apparatus comprising:

means for intermittently delivering a liquid at a first pressure to the nozzles;
means for intermittently delivering air at a second pressure to the nozzles;
and,
means for intermittently delivering the liquid to the nozzle at a third pressure, the third pressure being substantially higher than the first pressure and substantially higher than the second pressure;
said means for intermittently delivering the liquid comprising a first solenoid valve;
said means for intermittently delivering air at a second pressure to the nozzle comprising a second solenoid valve;
and
said means for intermittently delivering the liquid to the nozzles at a third pressure comprising;
a rodless cylinder having a piston thereon;
an air inlet into said rodless cylinder on a side of the piston therein, said air inlet into said rodless cylinder being intermittently in communication with air at a fourth pressure, the fourth pressure being substantially higher than the second pressure;
a liquid inlet into said rodless cylinder on a side of the piston there that is opposed to the side away from said air inlet;
and
a third solenoid valve in communication with said air inlet to said rodless cylinder;
said liquid inlet into said rodless cylinder being in fluid communication with said means for intermittently delivering liquid at a first pressure to the nozzles.

11 more elements

Apparatus for delivering a liquid to nozzles for spraying onto an opposed pair of surfaces, said apparatus comprising:

means for intermittently delivering a liquid at a first pressure to first nozzles for spraying onto a first of said opposed surfaces;
means for intermittently delivering a liquid at a first pressure to second nozzles for spraying onto the other of said opposed pair of surfaces;
means for intermittently delivering air at a second pressure to said first nozzles;
means for intermittently delivering air at the second pressure to the second nozzles;
means for intermittently delivering a liquid to the first nozzles at a third pressure, the third pressure being substantially higher than the first pressure;
and
means for intermittently delivering a liquid to the second nozzles at a fourth pressure, the fourth pressure being substantially higher than the second pressure;
wherein said means for intermittently delivering a liquid to the first nozzles comprises a first solenoid valve;
and
said means for intermittently delivering a liquid to the second nozzles comprises a second solenoid valve.

7 more elements

Dependencies are inferred from the claim text.

Apparatus for producing a cooling or lubricating spray

Life of this patent

Apparatus for producing a cooling or lubricating spray

Life of this patent

Abstract

Claims8