Atomizing nozzle assembly for pneumatically operated cleaning equipment
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B05B-003/04
B05B-003/06
B05B-015/02
B05B-003/16
B05B-003/02
B05B-007/24
출원번호
US-0541730
(2012-07-04)
등록번호
US-9144810
(2015-09-29)
발명자
/ 주소
Bosua, Christopher John
출원인 / 주소
Bosua, Christopher John
대리인 / 주소
Kilpatrick Townsend & Stockton LLP
인용정보
피인용 횟수 :
4인용 특허 :
2
초록▼
An atomizing nozzle assembly (1) for pneumatically operated cleaning equipment with a nozzle body (2), in which a nozzle pipe (12) can rotate in bearings, is improved with regard to safe function and long service life to the effect that a disc section (24) of a stop element (23) arranged on the inle
An atomizing nozzle assembly (1) for pneumatically operated cleaning equipment with a nozzle body (2), in which a nozzle pipe (12) can rotate in bearings, is improved with regard to safe function and long service life to the effect that a disc section (24) of a stop element (23) arranged on the inlet side of the nozzle pipe (12) has a smaller outer diameter (26) than the inner diameter (27) of the inlet end (4) of nozzle housing (2) so that an annular gap (28) remains between disc section (24) and nozzle housing (2) through which compressed air (14) can flow and compressed air (15) passes through two bearings (9, 10) for the rotary nozzle pipe (12) helping to remove dirt from the bearings.
대표청구항▼
1. Atomizing nozzle assembly for pneumatically operated cleaning equipment with a nozzle body including a substantially tubular housing section having an inlet section with an opening configured to be fastened to the cleaning equipment, and a substantially funnel-shaped outlet section having an outl
1. Atomizing nozzle assembly for pneumatically operated cleaning equipment with a nozzle body including a substantially tubular housing section having an inlet section with an opening configured to be fastened to the cleaning equipment, and a substantially funnel-shaped outlet section having an outlet opening, the assembly further including: a bearing near each of the inlet and outlet sections, the bearings at an axial offset to one another;a rotatable nozzle pipe having an inlet where pressurized fluid can enter, a main section of the nozzle pipe extending through the bearings, followed, in the area of the outlet section of the nozzle housing, by a transitory section of pipe angled in relation to the main section of pipe, the transitory section leading into a nozzle section whose free end includes a nozzle opening from which pressurized fluid can exit; anda stop element in the area of the inlet section, the stop element having a substantially annular disc section radially protruding outwardly from the nozzle pipe such that there is a secondary flow path for pressurized fluid from the inlet opening to the outlet opening through an annular gap formed between the annular disc section and the tubular nozzle housing. 2. Atomizing nozzle assembly according to claim 1, wherein the stop element includes a pipe section forming a sleeve around the nozzle pipe and making contact with the inner race of the bearing near the inlet section. 3. Atomizing nozzle assembly according to claim 1, wherein fluid travelling along the secondary flow path travels through the bearings near the inlet and the outlet such that a bearing cleaning effect is provided. 4. Atomizing nozzle assembly according to claim 1, wherein the annular gap including a gap width of about 2 mm and that the outer diameter of the disc section is about 16 mm. 5. Atomizing nozzle assembly according to claim 1, wherein the nozzle pipe in the area of its inlet end includes a male thread, to which the stop element with female thread is screwed. 6. Atomizing nozzle assembly according to claim 1, wherein the nozzle housing section includes, at the inlet section, a female thread for fastening to cleaning equipment. 7. Atomizing nozzle assembly according to claim 1, wherein the peripheral surface of the radial outer races of both bearings have contact with a cylindrical inner wall of the tubular housing section of the nozzle housing. 8. Atomizing nozzle assembly according to claim 1, wherein the outlet side bearing makes contact with a shoulder radially protruding inward from the inner wall of the nozzle housing, and a spacer enclosing the nozzle pipe is arranged between inlet side bearing and outlet side bearing. 9. Atomizing nozzle assembly according to claim 8, wherein pressurized fluid received through the inlet opening forces the stop element against the inlet side bearing in axial direction, the inlet side bearing being supported by the spacer, the outlet side bearing and ultimately by the axial shoulder of the nozzle housing. 10. Atomizing nozzle assembly according to claim 1, wherein the stop element includes blades arranged on the side of the of the annular disc section facing the inlet opening and the expansion of blades increases in axial direction with increasing distance from the axis of rotation of the nozzle pipe. 11. Atomizing nozzle assembly according to claim 10, wherein the blades are arranged in the direction of rotation of the nozzle pipe at identical angular distances to each other and spirally bent in radial direction. 12. Atomizing nozzle assembly according to claim 1, wherein the transitory section of the nozzle pipe in relation to the axis of rotation of the main section features an angle of about 160° and wherein the nozzle section of the nozzle pipe is angled in relation to the transitory section and also to the axis of rotation. 13. Atomizing nozzle assembly according to claim 1 wherein the nozzle pipe has an outer diameter of approx. 5 mm and an inner diameter of approx. 3 mm. 14. Atomizing nozzle assembly according to claim 1, wherein the lengths of main section to transitory section to the nozzle section of nozzle pipe have a ratio of 68 to 26 to 7. 15. Atomizing nozzle assembly according to claim 14, wherein length of main section up to the beginning of the bend to transitory section is about 68 mm, the length of transitory section is about 26 mm, and the length of transitory section together with nozzle section is about 33 mm, and wherein the outlet side bearing on main section of the nozzle pipe is located near the bend. 16. A nozzle assembly for pneumatically operated cleaning equipment including: a substantially tubular housing having an inlet for connecting to the cleaning equipment and an outlet;an inlet side bearing and an outlet side bearing positioned within the housing;a nozzle pipe extending through the bearings and thereby rotatable with respect to the housing; anda stop element mounted to the nozzle pipe including a substantially annular disc section that extends radially outward from the nozzle pipe, the stop element positioned between the inlet and the inlet side bearing,wherein a first fluid flow path from the inlet to the outlet is provided through the nozzle pipe and a second fluid flow path from the inlet to the outlet is provided through an annular gap between the stop element and the tubular housing. 17. Atomizing nozzle assembly for pneumatically operated cleaning equipment with a nozzle body comprising a basically tubular housing section with an inlet end with inlet opening to be fastened to the cleaning equipment, ending into a funnel-shaped extension with an outlet section and outlet opening at the opposite side, with a bearing each at the inlet and outlet side at an axial offset to each other for a rotating nozzle pipe having an inlet end where pressurized fluid, comprising compressed air or a mixture of compressed air and fluid droplets, can enter; a main section of the nozzle pipe starting from the inlet end and basically reaching through the bearings in a straight manner followed, in the area of the exit section of the nozzle housing, by an transitory section angled in relation to the axis of rotation of the nozzle pipe, which leads into a nozzle section whose free end features a nozzle opening from which the fluid exits, with the nozzle pipe having a stop element in the area of its inlet end basically having an annular disc section radially protruding to the outside, characterized in that the pipe section around the nozzle pipe of the stop element axially touches an inner ring of the bearing at the inlet side and that a secondary flow path of the fluid can flow through an annular gap formed between the disc section and the nozzle housing and via the bearing at the inlet side into the inner space and further through the bearing at the outlet side.
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