Fluid spray nozzle having a fixing element formed in a fluid spray nozzle

Abstract

A spray nozzle (1330) includes: a nozzle body (1034) having a longitudinal axis; and a receiving channel (1036) extending between the front and rear of the nozzle body, the receiving channel being transverse to the longitudinal axis. The spray nozzle further includes a nozzle member (1060), a front orifice element (1362), and a sealing element (1064) between the nozzle member and the front orifice element, at least the nozzle member and the sealing element being disposed within the receiving passage, the nozzle member defining a first portion of a fluid passage (1063) extending from an inlet (1050) to an outlet (1051). The spray nozzle further comprises a first securing element (1042) located downstream of the sealing element and at least a portion of the nozzle member, and a second securing element (1042) located upstream of the nozzle member and at least a portion of the sealing element, the first fixing element and the second fixing element fix at least the nozzle piece and the sealing element within the receiving channel.

Description

Background Art

[0001] Spray nozzles are commonly used in a variety of applications to break up or atomize fluid materials for delivery in a desired pattern.

[0002] While the examples described herein are in the context of surface painting, it should be understood that these technical solutions are not limited to this specific application. "Coatings" herein encompass materials composed of a colorant (or pigment) suspended in a liquid medium, as well as materials that do not contain colorants or pigments. Coatings may also include pre-treatment coatings such as primers, which can be opaque, transparent, or translucent. Specific examples include, but are not limited to, latex paints, oil-based paints, stains, varnishes, varnishes, and inks.

[0003] The above discussion is intended to provide general background information only and is not intended to be used as an aid in determining the scope of the claimed subject matter. Summary of the Invention

[0004] A spray nozzle comprises: a nozzle body having a longitudinal axis; and a receiving passage extending between a front and a rear of the nozzle body, the receiving passage being transverse to the longitudinal axis. The spray nozzle further comprises a nozzle piece, a front aperture element, and a sealing element located between the nozzle piece and the front aperture element, at least the nozzle piece and the sealing element being arranged within the receiving passage, the nozzle piece defining a first portion of a fluid passage extending from an inlet to an outlet. The spray nozzle further comprises a first securing element located downstream of the sealing element and at least a portion of the nozzle piece, and a second securing element located upstream of the nozzle piece and at least a portion of the sealing element, the first securing element and the second securing element securing at least the nozzle piece and the sealing element within the receiving passage.

[0005] This summary is intended to introduce several concepts in a simplified form that will be further described in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in defining the scope of the claimed subject matter. The claimed subject matter is not limited to implementations that solve any or all of the disadvantages identified in the background. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 is a perspective view of an exemplary fluid application system.

[0007] Figure 2 is a side view of an exemplary fluid applicator.

[0008] Figure 3 A perspective view of an exemplary spray nozzle.

[0009] Figure 4A partial front view of an exemplary spray nozzle.

[0010] Figures 5A-5B A cross-sectional view of an exemplary spray nozzle.

[0011] Figures 6A-6B A cross-sectional view of an exemplary spray nozzle.

[0012] Figures 7A-7B A cross-sectional view of an exemplary spray nozzle.

[0013] Figures 8A-8B A cross-sectional view of an exemplary spray nozzle.

[0014] Figures 9A-9B A cross-sectional view of an exemplary spray nozzle.

[0015] Figures 10A-10B A cross-sectional view of an exemplary spray nozzle.

[0016] Figures 11A-11B A cross-sectional view of an exemplary spray nozzle.

[0017] Figures 12A-12B A cross-sectional view of an exemplary spray nozzle.

[0018] FIG. 12 is a block diagram illustrating an exemplary fluid application system in greater detail.

[0019] Figure 13 A flow chart of an exemplary method for manufacturing a spray nozzle. DETAILED DESCRIPTION

[0020] To facilitate understanding of the principles of the present disclosure, reference will now be made to the examples shown in the accompanying drawings and specific language will be used to describe these examples. However, it should be understood that this is not intended to limit the scope of the present disclosure. Any changes and further modifications to the described devices, systems, and methods, as well as further applications of the principles of the present disclosure, are fully within the scope of what would normally occur to one skilled in the art. Specifically, it is fully anticipated that the features, components, and / or steps described for one example may be combined with the features, components, and / or steps described for other examples of the present disclosure.

[0021] In a fluid application system, a pump receives and pressurizes a fluid, delivers the pressurized fluid to an applicator, and the applicator, in turn, applies the pressurized fluid to a surface using a spray nozzle having a selected geometry to spray a desired spray pattern (e.g., a circular pattern, a flat pattern, a fan pattern, etc.). The fluid can include any fluid that is applied to a surface, including, but not limited to, paints, primers, varnishes, foams, texture materials, multi-components, adhesive components, etc.

[0022] Figure 1A perspective view of an example fluid application system 1 is shown. Fluid application system 1, illustratively shown as an airless fluid spray system (e.g., a high-efficiency airless spray system), includes a pump 2 mounted on a cart 4 and connected to an applicator 10 via a fluid delivery line 6 (e.g., a hose). Pump 2 includes a fluid inlet 8 disposed within a fluid source (e.g., a five-gallon paint bucket). Pump 2 pumps fluid from the fluid source through fluid inlet 8 and delivers the fluid to applicator 10 at a given pressure through fluid delivery line 6. In one example, pump 2 can pressurize the fluid to between 1500 and 350 PSI.

[0023] Figure 2 is an example side view of an applicator 10. Applicator 10 is used in a fluid spray system (e.g., fluid application system 1) to apply fluid to a surface (e.g., paint to a wall). Fluid enters through inlet 20, passes through a fluid passageway (not explicitly shown) within applicator 10, and exits through outlet 50. Fluid inlet 20 can be connected to a fluid delivery line, such as fluid delivery line 6. Nozzle 30 is connected to applicator 10 and has outlet 50. Nozzle 30 is typically reversible (e.g., nozzle 30 can be rotated about its longitudinal axis so that the inlet and outlet positions are reversed (i.e., the inlet faces away from applicator 10 and the outlet faces toward applicator 10)) or removable from applicator 10. The reversibility of spray nozzle 30 facilitates cleaning.

[0024] Figure 3 FIG3 is a perspective view illustrating an example of a nozzle 30. The spray nozzle 30 includes a marker 32, a nozzle stem 34, and a receiving channel 36. The marker 32 can be attached to the nozzle stem 34 in a variety of ways, including, for example, but not limited to, press-fitting the marker 32 onto the nozzle stem 34 or overmolding the marker 32 onto the nozzle stem 34. The marker 32 provides a convenient surface for handling the nozzle 30, particularly when the spray nozzle 30 is installed in an applicator, and can be used to indicate the directionality of the nozzle 30. The marker 32 can be comprised of a variety of materials, such as polymers. The nozzle stem 34 can be comprised of a variety of materials, such as metals such as stainless steel. The receiving channel 36 can be provided through the nozzle stem 34, for example, by machining, cutting, etc. The receiving channel 36 extends a distance between the front and back (or rear) of the spray nozzle 30. In some examples, the receiving channel 36 can extend from the front to the rear of the spray nozzle 30; in other examples, the receiving channel 36 can extend other distances. The receiving channel 36 will be described in more detail below.

[0025] Figure 44 , a nozzle member 60 may be placed and retained within the receiving passage 36. As will be shown in more detail in the following figures, various other items may also be placed and retained within the receiving passage of the spray nozzle.

[0026] Figures 5A-11B 5A-11B are cross-sectional views illustrating an example spray nozzle. It should be understood that the spray nozzles illustrated in FIGS. 5A-11B are exemplary embodiments of spray nozzles 30 and, as such, can be used with fluid applicators (e.g., fluid applicator 10) and in fluid application systems (e.g., fluid application system 1). It should be noted that for ease of illustration, the example nozzles illustrated in FIGS. 5A-11B have their respective designations removed, but it should be understood that each example nozzle may include a designation, such as designation 32.

[0027] FIG5A-5B (collectively referred to herein as FIG5 ) are cross-sectional views illustrating an example of a nozzle 130. As shown in FIG5 , the spray nozzle 130 includes a nozzle stem 134 having a receiving passage 136 defined therein transverse to the longitudinal axis 131 of the nozzle stem 134. The receiving passage 136 extends between a front 170 of the spray nozzle 130 and a rear 180 of the spray nozzle 130. As can be seen in FIG5 , the nozzle member 160, a front aperture element in the form of a front aperture member 162, and a sealing element 164 are positioned and retained within the receiving passage 136 from the rear 180 of the spray nozzle 130. The geometry of the receiving passage 136 forms a shoulder 138 against which the outer surface of the nozzle member 160 rests. A sealing element 164 (illustratively, an O-ring) fits around the front aperture member 162 (a portion of the front aperture member 162 is disposed within a bore of the sealing element 164). The sealing element 164 abuts against the outer surface of the front orifice member 162, the outer surface of the nozzle member 160, and the wall of the receiving passage 136. The outer surface of the front orifice member 162 abuts against the outer surface of the nozzle member 160. The nozzle member 160 and the front orifice member 162 form a fluid passage 163 having a variable geometry, which extends from the inlet 151 to the outlet 150. The fluid to be sprayed is received through the inlet 151 and discharged through the outlet 150. A groove 140 is provided inwardly from the rear 180 of the spray nozzle 130, and the groove forms an annular protrusion 142.

[0028] A swaging tool 190 is provided. The swaging tool 190 includes a swaging body 192, a biasing member 194, and a biasing member 196. In the example shown, the biasing member 196 is a spring. The swaging tool 190 is pressed against the spray nozzle 130 from the rear 180 of the spray nozzle 130 so that the biasing member 194 contacts the front hole portion 162, and the swaging body 192 fits within the groove 140 and contacts the annular protrusion 142 to deform (or curl) the annular protrusion 142 against the front hole piece 162. The biasing member 194 contacts the front hole portion 162 and drives the front hole portion 162 against the sealing element 164, thereby crushing the sealing element 164 so that the sealing element 164 forms a seal against the outer surface of the front hole piece 162, the outer surface of the nozzle piece 160, and the wall of the receiving passage 136. The deformed annular protrusion 142 (as Figure 5B ) and shoulder 138 hold the front bore portion 162, sealing element 164 and nozzle member 160 within the receiving passage 136.

[0029] In one example, the nozzle member 160 can be formed of a metal, such as a cemented carbide. In one example, the front orifice member 162 can be formed of a metal, such as a cemented carbide or stainless steel, such as hardened stainless steel. In one example, the sealing element 164 can be formed of a polymer, such as an elastomer (e.g., rubber).

[0030] Figures 6A-6B FIG6 (collectively referred to herein as FIG6 ) is a cross-sectional view illustrating an example of a spray nozzle 230. As shown in FIG6 , the spray nozzle 230 includes a nozzle stem 234 having a receiving passage 236 defined therein transverse to the longitudinal axis 231 of the nozzle stem 234. The receiving passage 236 extends from a front face 270 to a front aperture element in the form of a front aperture portion 262. The front aperture portion 262 is formed in the nozzle stem 234, for example, by machining, and includes a shoulder 238. As can be seen in FIG6 , a nozzle member 260 and a sealing member 264 are positioned within the receiving passage 236 from the front face 270 of the spray nozzle 230 and retained therein. The sealing member 264, illustratively a gasket, abuts against the shoulder 238, the outer surface of the nozzle member 260, and the wall of the receiving passage 236. The nozzle member 260, the front aperture portion 262, and the sealing member 264 form a fluid passage 263 having a variable geometry, which extends from the inlet 251 to the outlet 250. The fluid to be sprayed is received through the inlet 251 and discharged through the outlet 250. A groove 240 is provided inwardly from the front 270 of the spray nozzle 230, and the groove forms an annular protrusion 242.

[0031] A swaging tool 290 is provided. The swaging tool 290 includes a swaging body 292, a biasing member 294, and a biasing member 296. In the example shown, the biasing member 296 is a spring. The swaging tool 290 is pressed against the spray nozzle 230 from the front 270 of the spray nozzle 230 so that the biasing member 294 contacts the nozzle piece 260 and the swaging body 292 fits within the groove 240 and contacts the annular protrusion 242 to deform (or curl) the annular protrusion 242 against the nozzle piece 260. The biasing member 294 contacts the nozzle piece 260 and drives the nozzle piece 260 against the sealing element 264, thereby crushing the sealing element 264 so that the sealing element 264 forms a seal against the outer surface of the nozzle piece 260, against the shoulder 238, and against the wall of the receiving passage 236. The deformed annular protrusion 242 (as Figure 6B 6 , the biasing member 294 is shaped to fit around a portion of the nozzle member 260.

[0032] In one example, the nozzle member 260 can be formed from a metal, such as a cemented carbide. In one example, the front aperture portion 262 (and the nozzle stem 234 ) can be formed from stainless steel, such as hardened stainless steel. In one example, the sealing element 264 can be formed from a polymer, such as a plastic or an elastomer (e.g., rubber).

[0033] Figures 7A-7B FIG7 (collectively referred to herein as FIG7 ) is a cross-sectional view illustrating an example of a spray nozzle 330. As shown in FIG7 , the spray nozzle 330 includes a nozzle stem 334 having a receiving channel 336 defined therein transverse to the longitudinal axis 331 of the nozzle stem 334. The receiving channel 336 extends between a front 370 and a rear 380 of the spray nozzle 330. As can be seen in FIG7 , a nozzle member 360, a front aperture element in the form of a front aperture member 362, and a sealing member 364 are positioned and retained within the receiving channel 336 from the rear 380 of the spray nozzle 330. The geometry of the receiving channel 336 forms a shoulder 338 against which the outer surface of the nozzle member 360 abuts. The sealing member 364 (illustratively a gasket) abuts against the outer surface of the front aperture member 362, the outer surface of the nozzle member 360, and the wall of the receiving channel 336. The nozzle member 360, the front aperture portion 362, and the sealing element 364 form a fluid passage 363 having a variable geometry, which extends from the inlet 351 to the outlet 350. The fluid to be sprayed is received through the inlet 351 and discharged through the outlet 350. As shown in FIG7 , the receiving passage 336 is provided with a thread 337, and the front aperture member 362 is provided with a thread 363. The thread 363 and the thread 337 cooperate with each other.

[0034] A rotatable driving tool 390 is provided. In the example shown, the rotatable driving tool 390 is set from the rear 380 of the spray nozzle 330 and inserted into the fluid passage of the front orifice member 362. When the rotatable driving tool 390 is placed in the fluid passage of the front orifice member 362, it is rotated as shown by arrow 395 to drive the front orifice member 362 to move toward the sealing element 364 in the receiving passage 336 through the threads 363 and 337, contacting and crushing the sealing element 364, so that the sealing element 364 forms a seal with the outer surface of the front orifice member 362, the outer surface of the nozzle member 360, and the wall of the receiving passage 336. The threaded connection between the front orifice member 362 and the receiving passage 336 (such as Figure 7B 362 is retained within the receiving passage 336. Thus, the nozzle member 360, the front aperture portion 362, and the sealing element 364 are retained within the receiving passage 336 by the shoulder 338 and the threaded connection between the front aperture member 362 and the receiving passage 336 (as shown). Figure 7B shown).

[0035] In one example, nozzle member 360 can be formed from a metal, such as a cemented carbide. In one example, front orifice member 362 can be formed from a metal, such as stainless steel, such as hardened stainless steel. In one example, front orifice member 362 is a set screw, such as a hardened stainless steel set screw. In one example, sealing element 364 can be formed from a polymer, such as a plastic or an elastomer (e.g., rubber).

[0036] Figures 8A-8B FIG8 (collectively referred to herein as FIG8 ) is a cross-sectional view illustrating an example of a spray nozzle 430. As shown in FIG8 , the spray nozzle 430 includes a nozzle stem 434 having a receiving channel 436 defined therein transverse to the longitudinal axis 431 of the nozzle stem 434. The receiving channel 436 extends between a front 470 of the spray nozzle 430 and a rear 480 of the spray nozzle 430. As can be seen in FIG8 , a nozzle member 460, a front aperture element in the form of a front aperture member 462, and a sealing member 464 are positioned within the receiving channel 436 from the rear 480 of the spray nozzle 430 and retained therein. The geometry of the receiving channel 436 forms a shoulder 438 against which the outer surface of the nozzle member 460 rests. The sealing member 464 (illustratively a gasket) rests against the outer surface of the front aperture member 462, the outer surface of the nozzle member 460, and the wall of the receiving channel 436. The nozzle member 460, the front aperture portion 462, and the sealing element 464 form a fluid passage 463 having a variable geometry, which extends from the inlet 451 to the outlet 450. The fluid to be sprayed is received through the inlet 451 and discharged through the outlet 450. As shown in FIG8 , the nozzle stem 434 is provided with a groove 440 extending radially from the receiving passage 436, the groove forming a shoulder 443.

[0037] A pressing tool 490 is provided. In the example shown, the pressing tool 490 is set from the rear 480 of the spray nozzle 430 and inserted into the fluid passage of the front orifice member 462. When the pressing tool 490 is placed in the fluid passage of the front orifice member 462, it is driven to press the front orifice member 462 toward and against the sealing element 464, thereby crushing the sealing element 464 so that the sealing element 464 forms a seal with the outer surface of the front orifice member 462, the outer surface of the nozzle member 460, and the wall of the receiving channel 436. The insertion of the pressing tool 490 into the fluid passage of the front orifice member 462 deforms the wall 442 of the front orifice member 462, so that the diameter of the front orifice portion 462 is expanded and disposed in the groove 440 and abuts against the shoulder 443 (as shown in FIG. Figure 8B As shown). Thus, the nozzle member 460, the front hole portion 462 and the sealing element 464 are formed by the shoulder 438 and the deformed wall 442 of the front hole member 462 (as shown). Figure 8B Contact between the receiving channel 436 and the shoulder 443 is maintained.

[0038] In one example, the nozzle member 460 may be formed of a metal, such as a cemented carbide. In one example, the front orifice member 462 may be formed of a metal, such as stainless steel. In one example, the sealing element 464 may be formed of a polymer, such as a plastic or an elastomer (e.g., rubber).

[0039] Figures 9A-9B FIG9 (collectively referred to herein as FIG9 ) is a cross-sectional view illustrating an example of a spray nozzle 530. As shown in FIG9 , the spray nozzle 530 includes a nozzle stem 534 having a receiving channel 536 defined therein transverse to the longitudinal axis 531 of the nozzle stem 534. The receiving channel 536 extends between a front 570 of the spray nozzle 530 and a rear 580 of the spray nozzle 530. As can be seen in FIG9 , a nozzle member 560, a front aperture element in the form of a front aperture member 562, a sealing element 564, and a retaining ring 565 are positioned and retained within the receiving channel 536 from the rear 580 of the spray nozzle 530. The geometry of the receiving channel 536 forms a shoulder 538 against which the outer surface of the nozzle member 560 abuts. The sealing element 564 (illustratively a gasket) abuts against the outer surface of the front aperture member 562, the outer surface of the nozzle member 560, and the wall of the receiving channel 536. The nozzle piece 560, the front aperture portion 562, and the sealing element 564 form a fluid passage 563 having a variable geometry, which extends from the inlet 551 to the outlet 550. The fluid to be sprayed is received through the inlet 551 and discharged through the outlet 550. As shown in FIG9 , the nozzle stem 534 is provided with a groove 540 extending radially from the receiving passage 536, which forms a shoulder 543. The retaining ring 565 abuts the front aperture piece 562 when installed.

[0040] A pressing tool 590 is provided. In the example shown, the pressing tool 590 is set from the rear 580 of the spray nozzle 530 and inserted into the hole of the retaining ring 565. When the pressing tool 590 is placed in the hole of the retaining ring 565, it is driven to press the retaining ring 565 toward and against the front hole portion 562, which drives the front hole portion 562 to press against and against the sealing element 564 to crush the sealing element 564 so that the sealing element 564 forms a seal with the outer surface of the front hole member 562, the outer surface of the nozzle member 560, and the wall of the receiving channel 536. The insertion of the pressing tool 590 into the hole of the retaining ring 565 deforms the wall 567 of the retaining ring 565, so that the retaining ring 565 expands in diameter and is disposed in the groove 540 and abuts against the shoulder 543 (as shown in FIG. Figure 9B As shown). Thus, the nozzle member 560, the front hole portion 562, the sealing element 564 and the retaining ring 565 are formed by the shoulder 538 and the deformed wall 567 of the retaining ring 565 (as shown). Figure 9B Contact between the receiving channel 536 and the shoulder 543 is maintained.

[0041] In one example, nozzle member 560 can be formed of a metal, such as a cemented carbide. In one example, front orifice member 562 can be formed of a metal, such as a cemented carbide or stainless steel, such as hardened stainless steel. In one example, sealing element 564 can be formed of a polymer, such as a plastic or an elastomer (e.g., rubber). In one example, retaining ring 565 can be formed of a metal, such as stainless steel, such as hardened stainless steel.

[0042] Figures 10A-10BFIG10 (collectively referred to herein as FIG10 ) is a cross-sectional view illustrating an example of a spray nozzle 630. As shown in FIG10 , the spray nozzle 630 includes a nozzle stem 634 having a receiving channel 636 defined therein transverse to the longitudinal axis 631 of the nozzle stem 634. The receiving channel 636 extends between a front 670 of the spray nozzle 630 and a rear 680 of the spray nozzle 630. As can be seen in FIG10 , a nozzle member 660, a front aperture element in the form of a front aperture member 662, a sealing element 664, and a retaining ring 665 are positioned and retained within the receiving channel 636 from the rear 680 of the spray nozzle 630. The geometry of the receiving channel 636 forms a shoulder 638 against which the outer surface of the nozzle member 660 rests. The sealing element 664 (illustratively a gasket) rests against the outer surface of the front aperture member 662, the outer surface of the nozzle member 660, and the wall of the receiving channel 636. The nozzle member 660, the front aperture portion 662, and the sealing element 664 form a fluid passage 663 having a variable geometry, which extends from the inlet 651 to the outlet 650. The fluid to be sprayed is received through the inlet 651 and discharged through the outlet 650. As shown in FIG10 , the nozzle stem 634 is provided with a groove 640 extending radially from the receiving passage 636, which forms a shoulder 643. The receiving passage 636 also includes a ramp 647 that gradually narrows as it extends from the rear 680 of the spray nozzle 630 to the front 670 of the spray nozzle 630. The retaining ring 665 abuts the front aperture member 662 when installed.

[0043] A pressing tool 690 is provided. In the example shown, the pressing tool 690 is positioned from the rear 680 of the spray nozzle 630 and inserted into the hole of the snap ring 665. When the pressing tool 690 is positioned in the hole of the snap ring 665, it is driven to press and drive the snap ring 665 to move along the inclined surface 647 toward the front hole portion 662 and abut against the front hole portion 662, thereby driving the front hole portion 662 to press against and abut against the sealing element 664 to crush the sealing element 664 so that the sealing element 664 forms a seal against the outer surface of the front hole member 662, the outer surface of the nozzle member 660, and the wall of the receiving passage 636. Driving the snap ring 665 along the inclined surface 647 gradually reduces the diameter of the snap ring 665 until the snap ring 665 passes the inclined surface 647, whereupon the snap ring 665 rebounds to its original (or at least larger) diameter, thereby being disposed in the groove 640 and abutting against the shoulder 643 (as shown in FIG. Figure 10B ). Thus, the nozzle member 660, the front aperture portion 662, the sealing element 664, and the snap ring 665 are retained within the receiving passage 636 by the shoulder 638 and the contact between the snap ring 665 and the shoulder 643.

[0044] In one example, the nozzle member 660 can be formed of a metal, such as a carbide. In one example, the front orifice member 662 can be formed of a metal, such as a carbide or stainless steel, such as hardened stainless steel. In one example, the sealing element 664 can be formed of a polymer, such as a plastic or an elastomer (e.g., rubber). In one example, the retaining ring 665 can be formed of a metal, such as stainless steel, such as hardened stainless steel.

[0045] Figures 11A-11B FIG11 (collectively referred to herein as FIG11 ) is a cross-sectional view illustrating an example of a spray nozzle 730. As shown in FIG11 , the spray nozzle 730 includes a nozzle stem 734 having a receiving channel 736 defined therein transverse to the longitudinal axis 731 of the nozzle stem 734. The receiving channel 736 extends between a front 770 of the spray nozzle 730 and a rear 780 of the spray nozzle 730. As can be seen in FIG11 , the nozzle member 760, a front aperture element in the form of a front aperture member 762, and a sealing member 764 are positioned and retained within the receiving channel 736 from the rear 780 of the spray nozzle 730. The geometry of the receiving channel 736 forms a shoulder 738 against which the outer surface of the nozzle member 760 rests. The sealing member 764 fits around the front aperture member 762 (a portion of which is disposed within the aperture of the sealing member 764). The sealing element 764 comprises a ductile or elastic material, such as a polymer (e.g., acetal) or various other ductile or elastic materials. The sealing element 764 abuts against the outer surface of the front orifice member 762, the outer surface of the nozzle member 760, and the wall of the receiving passage 736. The nozzle member 760 and the front orifice member 762 form a fluid passage 763 having a variable geometry, which extends from the inlet 751 to the outlet 750. The fluid to be sprayed is received through the inlet 751 and discharged through the outlet 750. A groove 740 is provided inwardly from the rear 780 of the spray nozzle 730, and the groove forms an annular wall 742.

[0046] A hammering tool 790 is provided (as part of the track forming machine). The hammering tool 790 is used to deform the annular wall 742 during the track forming process. The hammering tool 790 is pressed toward the spray nozzle 730 from the rear 780 thereof so that the hammering tool 790 fits within the groove 740 and contacts the annular wall 742 to deform (or crimp) the annular wall 742 against the front orifice 762 (e.g., Figure 11BAs shown). The hammer tool 790 is driven to perform a circular or orbital motion (as shown by arrow 795) to gradually crush (deform or curl) the annular wall 742 against the front orifice member 762. The deformation (or curling) of the annular wall 742 against the front orifice member 762 drives the front orifice member 762 against the sealing element 764, thereby crushing the sealing element 764 so that the sealing element 764 forms a seal against the outer surface of the front orifice member 762, the outer surface of the nozzle member 760, and the wall of the receiving passage 736. The deformed annular wall 742 (as shown) Figure 11B ) and shoulder 738 hold the front orifice member 762, sealing element 764 and nozzle member 760 within the receiving passage 736.

[0047] In one example, the nozzle member 760 can be formed of a metal, such as a cemented carbide. In one example, the front orifice member 762 can be formed of a metal, such as a cemented carbide or stainless steel, such as hardened stainless steel. In one example, the sealing element 764 can be formed of a polymer, such as an elastomer (e.g., rubber).

[0048] Figures 12A-12B FIG12 (collectively referred to herein as FIG12 ) is a cross-sectional view illustrating an example of a spray nozzle 830. As shown in FIG12 , spray nozzle 830 includes a nozzle stem 834 having a receiving channel 836 defined therein, extending transversely to the longitudinal axis 831 of nozzle stem 834. Receiving channel 836 extends from a front face 870 of spray nozzle 830 to a front aperture element in the form of a front aperture portion 862. Front aperture portion 862 is formed within nozzle stem 834, for example, by machining. As can be seen in FIG12 , nozzle member 860 and sealing member 864 are positioned within receiving channel 836 from a front face 870 of spray nozzle 830 and retained therein. The geometry of receiving channel 836 forms a shoulder 838. Sealing member 864 abuts shoulder 838, the outer surface of nozzle member 860, and the wall of receiving channel 836. Sealing member 864 comprises a ductile or elastic material, such as a polymer (e.g., acetal) or various other ductile or elastic materials. The nozzle member 860, the sealing element 864 and the front aperture portion 862 form a fluid passage 863 having a variable geometry, which extends from the inlet 851 to the outlet 850. The fluid to be sprayed is received through the inlet 851 and discharged through the outlet 850. A groove 840 is provided inwardly from the front 880 of the spray nozzle 830, and the groove forms an annular wall 842.

[0049] A hammer tool 890 is provided (as part of the track forming machine). The hammer tool 890 is similar to the hammer tool 790, except that the hammer tool 890 includes a recess configured to receive a portion of the nozzle member 860. The hammer tool 890 is used to deform the annular wall 842 during the track forming process. The hammer tool 890 is pressed against the spray nozzle 830 from the front 870 thereof and against the nozzle member 860 such that the hammer tool 890 fits within the recess 840 and contacts the annular wall 842 to deform (or crimp) the annular wall 842 against the nozzle member 860 (e.g., Figure 12B 860). The hammer tool 890 is driven in a circular or orbital motion (as indicated by arrow 895) to gradually crush (deform or curl) the annular wall 842 against the nozzle member 860. The deformation (or curling) of the annular wall 842 against the nozzle member 860 drives the nozzle member 860 against the sealing element 864, thereby crushing the sealing element 864 so that the sealing element 864 forms a seal against the outer surface of the front aperture member 862 or shoulder 838, the outer surface of the nozzle member 760, and the wall of the receiving passage 836. The deformed annular wall 842 (as indicated by arrow 895) is Figure 12B ) and shoulder 838 hold the nozzle piece 860 and sealing element 864 within the receiving passage 836.

[0050] In one example, the nozzle member 860 can be formed of a metal, such as a cemented carbide. In one example, the front orifice member 862 can be formed of a metal, such as a cemented carbide or stainless steel, such as hardened stainless steel. In one example, the sealing element 864 can be formed of a polymer, such as an elastomer (e.g., rubber).

[0051] Figure 13 is a block diagram illustrating an example of a fluid application system 1000. Fluid application system 1000 may include one or more pumps 1002, a fluid source 1003, a pump support structure 1004, a fluid delivery line 1006, a fluid applicator 1010, a spray nozzle 1030, and may include various other items 1012, including but not limited to other items discussed or illustrated herein.

[0052] Pump 1002, in one example, can be similar to pump 2, or can be another type of pump. Fluid source 1003 can be a fluid container, such as a paint bucket (e.g., a 5-gallon paint bucket). Pump support structure 1004 can be similar to cart 4, or can be another type of pump support structure. Fluid delivery line 1006 can be similar to fluid delivery line 6, or can be another type of fluid delivery line. Fluid applicator 1010 can be similar to fluid applicator 10, or can be another type of fluid applicator. Pump 1002 pumps and pressurizes fluid from fluid source 1003 and delivers the pressurized fluid to fluid applicator 1010 via fluid delivery line 1006. Pump 1002 can be supported by pump support structure 1004, such as a cart (e.g., cart 4) or another pump support structure.

[0053] A spray nozzle 1030 is mounted in the fluid applicator 1010. The spray nozzle 1030 may be similar to the spray nozzle 30, the spray nozzle 130, the spray nozzle 230, the spray nozzle 330, the spray nozzle 430, the spray nozzle 530, the spray nozzle 630, the spray nozzle 730, or the spray nozzle 830, or may be another type of spray nozzle. Pressurized fluid is delivered to the spray nozzle 1030 by the fluid applicator. The spray nozzle 1030 breaks up or atomizes the fluid, delivering the fluid in a desired spray pattern.

[0054] The spray nozzle 1030 may include a nozzle body (or stem) 1034, a logo 1032, a receiving channel 1036, one or more grooves 1040, a nozzle piece 1060, a front aperture element 1062, one or more sealing elements 1064, one or more fixing elements 1042, an outlet 1050, an inlet 1051, a fluid channel 1063, and may also include various other items 1099, including but not limited to other items discussed or shown herein.

[0055] Nozzle body (or stem) 1034 can be similar to stem 34, 134, 234, 334, 434, 534, 634, 734, or 834, or can be another type of nozzle body (or stem). Marker 1032 can be similar to marker 32, or can be another type of marker. Receiving channel 1036 can be similar to receiving channel 36, 136, 236, 336, 436, 536, 636, 736, or 836, or can be another type of receiving channel.

[0056] Grooves 1040 may be similar to grooves 140 , 240 , 440 , 540 , 640 , 740 , or 840 , or may be another type of groove or other type of groove.

[0057] Nozzle member 1060 can be similar to nozzle member 60, nozzle member 160, nozzle member 260, nozzle member 360, nozzle member 460, nozzle member 560, nozzle member 660, nozzle member 760, or nozzle member 860, or can be another type of nozzle member. Front aperture element 1062 can be similar to front aperture element 162, front aperture portion 262, front aperture element 362, front aperture element 462, front aperture element 562, front aperture element 662, front aperture element 762, or front aperture portion 262, or can be another type of front aperture element. Sealing element can be similar to sealing element 164, sealing element 264, sealing element 364, sealing element 464, sealing element 564, sealing element 664, sealing element 764, or sealing element 864, or can be another type of sealing element or other types of sealing elements.

[0058] The fixing element 1042 can be similar to shoulder 138 and deformed protrusion 142, shoulder 238 and deformed protrusion 242, mating thread 363, mating thread 337 and shoulder 338, shoulder 438, shoulder 443 and deformed wall 442, shoulder 538, shoulder 543 and ring 565, shoulder 638, shoulder 643 and ring 665, shoulder 738 and deformed wall 742, or shoulder 838 and deformed wall 842, or another fixing element or other type of fixing element.

[0059] Outlet 1050 can be similar to outlet 50, outlet 150, outlet 250, outlet 350, outlet 450, outlet 550, outlet 650, outlet 750, or outlet 850, or another type of outlet. Inlet 1051 can be similar to inlet 151, inlet 251, inlet 351, inlet 451, inlet 551, inlet 651, inlet 751, or inlet 851, or can be another type of inlet. Fluid channel 1063 can be similar to fluid channel 136, fluid channel 236, fluid channel 336, fluid channel 436, fluid channel 536, fluid channel 636, fluid channel 736, or fluid channel 836, or another type of fluid channel. Fluid channel 1036 extends between inlet 1051 and outlet 1050 and can have a variable geometry. In some examples, fluid channel 1036 can be stepped or otherwise gradually widened from the upstream end to the downstream point and then gradually narrowed from the downstream point to the downstream end.

[0060] It should be understood that the spray nozzle 1030 can be reversible (e.g., rotatable about its longitudinal axis). That is, the spray nozzle can be rotated between a first operating position (normal operating position) in which the outlet 1050 faces away from the applicator 1010 and the inlet 1051 faces the applicator 1010, and a second operating position (cleaning operating position) in which the outlet faces the applicator 1010 and the inlet faces away from the applicator 1010.

[0061] Figure 14 A flow chart illustrating an example of a method 1300 of manufacturing a spray nozzle, such as spray nozzle 1030 , is shown.

[0062] In block 1301, a nozzle body 1034 is provided. As shown in block 1302, the nozzle body 1034 can be a rod, such as rod 34, rod 134, rod 234, rod 334, rod 434, rod 534, rod 634, rod 734, or rod 834, or another type of rod. As shown in block 1304, the nozzle body 1034 can be another type of nozzle body.

[0063] At block 1306, a receiving channel 1036 and a securing element 1042 are provided in the nozzle body 1034. The receiving channel 1036 can be the receiving channel 36, 136, 236, 336, 436, 536, 636, 736, or 836, or another type of receiving channel. In some examples, the receiving channel 1036 is transverse to the longitudinal axis of the nozzle body 1034. The securing element 1042 at block 1306 can be the shoulder 138, 238, 338, 438, 538, 638, 738, or 838, or another type of securing element. In some examples, at block 1306, the receiving channel 1036 is provided while also providing the fixation element 1042. For example, at block 1306, the geometry of the receiving channel 1036 can define the fixation element 1042. The receiving channel or fixation element 1042 at block 1306 can be provided by machining, as shown in block 1308. The receiving channel or fixation element 1042 at block 1306 can be provided by various other means, as shown in block 1310.

[0064] In some examples, additional securing elements 1042 are provided at block 1312. As shown in block 1314, additional securing elements 1042 may be threads formed in nozzle body 1034. These threads may be threads 337, or other threads. As shown in block 1316, additional securing elements 1042 may be shoulders of a groove formed in nozzle body 1034. The shoulder of the groove may be shoulder 443 of groove 440, shoulder 543 of groove 540, shoulder 643 of groove 640, or other shoulders of other grooves. As shown in block 1318, additional securing elements 1042 may be various other securing elements. As shown in block 1320, the additional securing elements may be provided by machining. As shown in block 1322, the additional securing elements may be provided by various other means.

[0065] In block 1324, the front aperture member 1062, the sealing member 1064, and the nozzle piece 1060 are provided.

[0066] In one example, as shown at block 1326, providing the front aperture element 1062 may include forming the front aperture element 1062 in the nozzle body 1034 (e.g., by machining, etc.), such as the example of the front aperture portion 262 in the nozzle body 234 in FIG. 6 or the example of the front aperture portion 862 in the nozzle body 834 in FIG. 12 . In such an example, providing the sealing element 1064 and providing the nozzle piece 1060 may include placing the sealing element 1064 and the nozzle piece 1060 into the receiving passage 1036 (from the front of the nozzle body, as shown at block 1332 ). In such an example, the nozzle piece 1060 is located upstream of the front aperture element 1062, and the nozzle piece 1060, or at least a portion thereof, is located upstream of the sealing element 1064. In such an example, the sealing element 1062 is located upstream of the front aperture element 1062, or at least a portion thereof. In such an example, the front aperture element 1062, or at least a portion thereof, is located upstream of the receiving passage 1036.

[0067] In one example, as shown at block 1328, providing the front aperture element 1062 can include placing the front aperture element, such as the examples of front aperture elements 162, 362, 462, 562, 662, and 762 shown in FIG. 5 and FIG. 7-11 , respectively, into the receiving passage 1036. In such examples, providing can include placing the sealing element 1064 and the nozzle element 1060 into the receiving passage 1036 (from the front of the nozzle body, as shown at block 1332, or from the rear of the nozzle body, as shown at block 1334). In such examples, the nozzle element 1060 is positioned upstream of the front aperture element 1062, and the nozzle element 1060, or at least a portion thereof, is positioned upstream of the sealing element 1064. In such examples, the sealing element 1062 is positioned upstream of the front aperture element 1062, or at least a portion thereof. For example, in some examples, the sealing element 1064 can be positioned around the front aperture element 1062 such that a portion of the sealing element is positioned within the aperture of the sealing element 1064. In such examples, the front aperture element 1062 , or at least a portion thereof, is located downstream of the receiving channel 1036 .

[0068] In some examples, two or more of the front aperture element 1062, the sealing element 1064, and the nozzle member 1060 can be positioned together (e.g., positioned together in the receiving passage 1036), as shown in block 1330. For example, the sealing element 1064 and the front aperture element 1062 can be positioned together (e.g., positioned together in the receiving passage 1036) in some examples. For example, the sealing element 1064 can fit around a portion of the front aperture element 1062, and then the sealing element 1064 and the front aperture element 1062 can be positioned together (e.g., positioned together in the receiving passage 1036). For example, in the examples shown in Figures 5 and 11, the sealing element 1064 and the front aperture element 1062 can be positioned together (e.g., positioned together in the receiving passage 1036). Of course, in some cases, the sealing element 1064 and the front aperture element 1062 need not be positioned together. For example, in the examples shown in Figures 5 and 11, the sealing element 1064 and the front aperture element 1062 are not positioned together.

[0069] In some examples, the front aperture element 1062, the sealing element 1064, and the nozzle piece 1060 can be provided separately. For example, in the examples shown in Figures 6-10 and 12, the front aperture element 1062, the sealing element 1064, and the nozzle piece 1060 can be provided separately.

[0070] As shown at block 1336, the front aperture member 1062, the sealing member 1064, and the nozzle member 1060 may be configured in a variety of other ways.

[0071] At block 1340, an additional securing element 1042 is provided to secure at least the nozzle member 1060 and the sealing member 1064 (and in some examples, the front aperture member 1062) within the receiving passage 1036 and form a seal. In some examples, the additional securing element 1042 is provided to secure the front aperture member 1062, the sealing member 1064, and the nozzle member 1060 within the receiving passage, such as the examples shown in FIG5 and FIG7-11 (e.g., examples in which the front aperture member 1062 is a front aperture member, such as the front aperture member 162, the front aperture member 362, the front aperture member 462, the front aperture member 562, the front aperture member 662, or the front aperture member 762, respectively). In some examples, an additional securing element 1042 is provided solely to secure the nozzle member 1060 and the sealing element 1064 within the receiving passage 1036, such as the examples shown in Figures 6 and 12 (e.g., where the front aperture member 1062 is an example of a front aperture portion formed in the nozzle body 1034, such as the front aperture portion 262 and the front aperture portion 862, respectively). The additional securing element 1042 is provided to form a seal by causing compression of the sealing element 1064 (e.g., by driving the nozzle member 1060 or the front aperture portion 1062 to reduce the distance between the nozzle member 1060 and the front aperture member 1062). The seal may include two or more of a seal between the sealing element 1064 and the front aperture member 1062, a seal between the sealing element 1064 and the nozzle member 1060, and a seal between the sealing element 1064 and the nozzle body 1034.

[0072] In some examples, the additional securing element 1042 provided at block 1340 may include deforming a portion of the nozzle body 1034, as shown at block 1342, such as the examples of deforming protrusions 142 and 242 shown in Figures 5 and 6, respectively, and the examples of deforming walls 742 and 842 shown in Figures 11 and 12, respectively.

[0073] In some examples, the additional securing element 1042 provided at block 1340 can include providing threads of the front aperture element 1062, such as the example of threads 363 of the front aperture piece 336 shown in FIG6 . In such examples, the threads of the front aperture element 1062 mate with threads (e.g., threads 337) of the nozzle body 1034, such as those provided at block 1314 . Thus, the front aperture element 1062 is threadedly connected to the nozzle body 1034 and acts as an additional securing element 1042 to secure the front aperture portion 1062, the nozzle piece 1060, and the sealing element 1064 within the receiving passage 1036. Thus, as indicated by arrow 1038, providing the front aperture portion 1062 and the additional sealing element 1042 at block 1340 can occur together.

[0074] In some examples, providing the additional securing element 1042 at block 1340 may include deforming a portion of the front aperture element 1062, as shown at block 1346, such as the example of the deformed wall 442 shown in FIG8 . In such examples, the deformed portion of the front aperture element 1062 may be deformed to be disposed within a recess (e.g., recess 440) of the nozzle body 1034 and disposed against another securing element 1042, such as a shoulder (e.g., shoulder 443) of the nozzle body 1034, such as the shoulder of the recess provided at block 1316.

[0075] In some examples, providing an additional securing element 1042 at block 1340 may include providing a ring, as shown at block 1348, such as ring 565 and ring 665, shown in Figures 9 and 10, respectively. In one example, the ring (e.g., ring 565) can be moved between a first diameter and a second diameter. The ring is compressed to its first, smaller diameter until it aligns with a groove (e.g., groove 540), at which point the ring rebounds to its second, larger diameter to be disposed within the groove and against another securing element 1042, such as a shoulder (e.g., shoulder 543) of the nozzle body, such as the shoulder of the groove provided at block 1316. In another example, a portion (e.g., wall 667) of the ring (e.g., ring 665) is deformed to be disposed within a groove (e.g., groove 640) of the nozzle body 1034 and against another securing element 1042, such as a shoulder (e.g., shoulder 643) of the nozzle body 1034, such as the shoulder of the groove provided at block 1316.

[0076] Providing the additional fixation element 1042 at block 1340 may include using a tool, such as a swaging tool (e.g., swaging tool 190 or swaging tool 290), a rotatable drive tool (e.g., rotatable drive tool 390), a pressing tool (e.g., pressing tool 490, pressing tool 590, or pressing tool 690), a hammer tool (e.g., hammer tool 790 or hammer tool 890), or other type of tool, as shown at block 1350.

[0077] Providing additional securing elements 1042 at block 1340 to secure at least the nozzle piece 1060 and sealing element 1064 (and in some examples also the front aperture element 1062 ) within the receiving passage 1036 and form a seal may be accomplished in various other ways, as shown at block 1352 .

[0078] As can be seen, the spray nozzle may include a nozzle body (e.g., a nozzle stem) having a longitudinal axis and a receiving channel formed in the nozzle stem transverse to the longitudinal axis. The spray nozzle may also include a nozzle member disposed within the receiving channel, a sealing element disposed within the receiving channel and upstream of the nozzle member, and a front orifice element located upstream of the nozzle member. The spray nozzle may also include a fluid passage having a variable geometry extending between an upstream end of the front orifice element and a downstream end of the nozzle member. The spray nozzle may also include a first retaining element located downstream of the nozzle member, or at least a portion of the nozzle member, and the sealing element, and a second retaining element located upstream of the sealing element, or at least a portion of the sealing element, and the nozzle member. In one example, the second retaining element is located upstream of the front orifice element. In one example, the sealing element forms a portion of the fluid passage. In one example, the first retaining element comprises a shoulder of the nozzle body defined by the receiving channel. In one example, the first retaining element comprises a deformed portion of the nozzle body. In one example, the second retaining element comprises a shoulder of the nozzle body defined by the receiving channel. In one example, the second retaining element comprises a deformed portion of the nozzle body. In one example, the second retaining element comprises an annular member. In one example, the second fixing element comprises threads of the front aperture element and threads of the nozzle body. In one example, the second fixing element comprises a deformed portion of the front aperture element. In one example, the nozzle body comprises a groove extending radially from the receiving passage, the groove being configured to accommodate the second fixing element. In one example, the groove comprises a shoulder. In one example, the second fixing element abuts the shoulder of the groove. In one example, the front aperture element comprises hardened stainless steel. In one example, the receiving passage comprises threads and the front aperture element comprises threads, the threads of the front aperture element and the threads of the receiving passage being configured to mate with each other. In one example, the front aperture element comprises a set screw. In one example, the front aperture element is configured to receive a pressing tool to deform a portion of the front aperture element to form the second fixing element. In one example, the front aperture element is configured to receive a rotatable drive tool. In one example, the front aperture element is configured to receive a biasing member of a swaging tool. In one example, the nozzle piece is configured to receive the biasing member of the swaging tool. In one example, the nozzle body is configured to receive the swaging tool to deform a portion of the nozzle body to form the first fixing element. In one example, the nozzle body is configured to receive a swaging tool to deform a portion of the nozzle body to form the second securing element. In one example, the second securing element is configured to receive a pressing tool to position the second securing element (e.g., a ring, a portion of the front aperture element) within the recess and against a shoulder of the recess. In one example, the nozzle body is configured to receive a hammering tool to deform the portion of the nozzle body to form the second securing element. In one example, the nozzle body is configured to receive a hammering tool to deform the portion of the nozzle body to form the first securing element.

[0079] Although the present invention has been described with reference to preferred examples, workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the invention.

[0080] Furthermore, although a particular order of steps is described for purposes of illustration, it should be understood that some or all of these steps can be performed in any number of orders.

[0081] It should also be noted that the different examples described herein can be combined in different ways. That is, parts of one or more examples can be combined with parts of one or more other examples. All of these constitute what is contemplated herein.

Claims

1. A spray nozzle comprising: a nozzle body having a longitudinal axis; a receiving passage extending between a front and a rear of the nozzle body and transverse to the longitudinal axis; Nozzle parts; anterior pore element; a sealing element positioned between the nozzle member and the front aperture member, at least the nozzle member and the sealing element being disposed within the receiving passage, the nozzle member defining a first portion of a fluid passage extending from an inlet to an outlet; a first retaining element positioned downstream of the sealing element and downstream of at least a portion of the nozzle member; as well as A second fixing element is positioned upstream of at least a portion of the nozzle member and the sealing member, wherein the first fixing element and the second fixing element fix at least the nozzle member and the sealing member within the receiving passage.

2. The spray nozzle of claim 1 , wherein the front aperture element comprises a front aperture piece disposed within the receiving passage and upstream of the nozzle piece and defining a second portion of the fluid passage, and wherein the first fixing element and the second fixing element secure the nozzle piece, the sealing element, and the front aperture piece within the receiving passage.

3. The spray nozzle of claim 2, wherein the first securing element comprises a shoulder of the nozzle body.

4. The spray nozzle of claim 2, wherein the first securing element comprises a deformed portion of the nozzle body.

5. The spray nozzle of claim 2, wherein the second securing element comprises a deformed portion of the nozzle body.

6. The spray nozzle of claim 2, wherein the second fixing element comprises a ring.

7. The spray nozzle of claim 2, wherein the second fixing element comprises a deformed portion of the front orifice member.

8. The spray nozzle of claim 2, wherein the second fixing element comprises threads on an outer surface of the front orifice member, the threads on the outer surface of the front orifice member being configured to mate with threads on a surface of the receiving passage.

9. The spray nozzle of claim 1, wherein the front aperture member includes a front aperture portion formed in the nozzle body and located upstream of the receiving passage.

10. The spray nozzle of claim 9, wherein the first securing element comprises a deformed portion of the nozzle body.

11. The spray nozzle of claim 9, wherein the second securing element comprises a shoulder of the nozzle body.

12. A fluid application system comprising: fluid applicators; a fluid delivery line connected to the fluid applicator; a pump configured to deliver fluid from a fluid source through the fluid delivery line to the fluid applicator; as well as a spray nozzle connected to the fluid applicator, the spray nozzle comprising: a nozzle body having a longitudinal axis; a receiving passage extending between a front and a rear of the nozzle body and transverse to the longitudinal axis; Nozzle parts; anterior pore element; a sealing element positioned between the nozzle member and the front aperture member, at least the nozzle member and the sealing element being disposed within the receiving passage, the nozzle member defining a first portion of a fluid passage extending from an inlet to an outlet; a first retaining element located downstream of the sealing element and downstream of at least a portion of the nozzle member; and A second fixing element is positioned upstream of at least a portion of the nozzle member and the sealing member, wherein the first fixing element and the second fixing element fix at least the nozzle member and the sealing member within the receiving passage.

13. The spray nozzle of claim 12 , wherein the front aperture element comprises a front aperture piece disposed within the receiving passage and upstream of the nozzle piece and defining a second portion of the fluid passage, and wherein the first securing element and the second securing element secure the nozzle piece, the sealing element, and the front aperture piece within the receiving passage.

14. The spray nozzle of claim 13, wherein the first securing element comprises a portion of the nozzle body.

15. The spray nozzle of claim 13, wherein the second securing element comprises a portion of the nozzle body.

16. The spray nozzle of claim 13, wherein the second fixing element comprises a ring, the spray nozzle further comprising the third fixing element, the second fixing element being disposed against the third fixing element.

17. The spray nozzle of claim 13, wherein the second fixing element comprises a deformed portion of the front orifice member, the spray nozzle further comprising the third fixing element, the second fixing element being disposed against the third fixing element.

18. The spray nozzle of claim 12, wherein the front aperture member includes a front aperture portion formed in the nozzle body and located upstream of the receiving passage.

19. The spray nozzle of claim 18, wherein the first securing element comprises a first portion of the nozzle body and the second securing element comprises a second portion of the nozzle body.

20. A method of manufacturing a spray nozzle, comprising: providing a nozzle body having a longitudinal axis; providing a receiving passage in the nozzle body transverse to the longitudinal axis, wherein the receiving passage provides a securing element; providing a front hole element; providing a sealing element, wherein providing the sealing element comprises providing the sealing element within the receiving passage and upstream of at least a portion of the anterior aperture element; providing a nozzle member, wherein providing the nozzle member comprises providing the nozzle member within the receiving passage; as well as An additional fixing element is provided, wherein the additional fixing element is provided to drive at least one of the nozzle member or the front aperture member to move and compress the sealing element to form a multiple seal.

Images