SUPERSONIC AIR KNIFE WITH A SUPERSONIC VARIABLE FLOW NOZZLE
원문보기
IPC분류정보
국가/구분
United States(US) Patent
공개
국제특허분류(IPC7판)
B05B-001/00
E02F-003/92
B05B-001/30
E02F-005/10
E21B-007/18
출원번호
US-0651201
(2017-07-17)
공개번호
US-0015486
(2018-01-18)
발명자
/ 주소
Hursen, Thomas Francis
출원인 / 주소
Hursen, Thomas Francis
인용정보
피인용 횟수 :
0인용 특허 :
0
초록▼
A hand held supersonic air knife with a supersonic variable flow nozzle yields a continuously variable power mass flow rate (CFM) and pressure over a selectable power range, responsive to rotations of the nozzle exterior sleeve or outer nozzle member. The maximum power position identified as one end
A hand held supersonic air knife with a supersonic variable flow nozzle yields a continuously variable power mass flow rate (CFM) and pressure over a selectable power range, responsive to rotations of the nozzle exterior sleeve or outer nozzle member. The maximum power position identified as one end position and a second end position as the lowest power. The exterior sleeve can be rotated to any axial or circumferential position between start (low) and end (high). The result will be an intermediate power position. Any intermediate position will also be a supersonic nozzle of varying parameters between the start and end positions. Thus, a variable flow supersonic nozzle is provided by the manual sleeve rotation by an operator or a remotely controlled positioning of the sleeve.
대표청구항▼
1. A hand-held supersonic air knife comprising: A source of compressed air providing compressed air at least at one given pressure;A hand-held variable flow nozzle coupled to the source of compressed air, wherein the variable flow nozzle includes: i) An inner nozzle member, andii) An outer nozzle me
1. A hand-held supersonic air knife comprising: A source of compressed air providing compressed air at least at one given pressure;A hand-held variable flow nozzle coupled to the source of compressed air, wherein the variable flow nozzle includes: i) An inner nozzle member, andii) An outer nozzle member which combines with the inner nozzle member to define an annular throat for the compressed air to flow through and achieve supersonic flow, wherein the outer nozzle member is axially movable relative to the inner nozzle member to adjust the cross-sectional area of the annular throat. 2. The supersonic air knife according to claim 1, wherein the source of compressed air provides air at a range of air pressures and wherein distinct positions of the outer nozzle member relative to the inner nozzle member are associated with an annular throat area optimized for a given air pressure within the range of air pressures of the source of compressed air. 3. The supersonic air knife according to claim 2, wherein one surface of the inner nozzle member and the outer nozzle member which forms the annular throat is a straight surface and the other is a non-linear contoured surface. 4. The supersonic air knife according to claim 3, wherein the outer nozzle member is threaded to the inner nozzle member to provide the axial movement of the outer nozzle member is axially movable relative to the inner nozzle member. 5. The supersonic air knife according to claim 4, wherein the inner nozzle member includes a plurality of inner nozzle passages configured to conduct air into an annulus space upstream of the annular throat. 6. The supersonic air knife according to claim 5, wherein the outer nozzle member includes an outer wear tip coupled to a distal end thereof. 7. The supersonic air knife according to claim 1, wherein one surface of the inner nozzle member and the outer nozzle member which forms the annular throat is a straight surface and the other is a non-linear contoured surface. 8. The supersonic air knife according to claim 7, wherein the outer nozzle member is threaded to the inner nozzle member to provide the axial movement of the outer nozzle member is axially movable relative to the inner nozzle member. 9. The supersonic air knife according to claim 8, wherein the inner nozzle member includes a plurality of inner nozzle passages configured to conduct air into an annulus space upstream of the annular throat. 10. The supersonic air knife according to claim 9, wherein the outer nozzle member includes an outer wear tip coupled to a distal end thereof. 11. The supersonic air knife according to claim 1, wherein the outer nozzle member is threaded to the inner nozzle member to provide the axial movement of the outer nozzle member is axially movable relative to the inner nozzle member. 12. The supersonic air knife according to claim 11, wherein the inner nozzle member includes a plurality of inner nozzle passages configured to conduct air into an annulus space upstream of the annular throat. 13. The supersonic air knife according to claim 12, wherein the outer nozzle member includes an outer wear tip coupled to a distal end thereof. 14. The supersonic air knife according to claim 1, wherein the inner nozzle member includes a plurality of inner nozzle passages configured to conduct air into an annulus space upstream of the annular throat. 15. The supersonic air knife according to claim 14, wherein the outer nozzle member includes an outer wear tip coupled to a distal end thereof. 16. The supersonic air knife according to claim 1, wherein the outer nozzle member includes an outer wear tip coupled to a distal end thereof. 17. A variable flow nozzle configured for being coupled to a source of compressed air which provides air at a range of air pressures, wherein the variable flow nozzle comprises: An inner nozzle member, andAn outer nozzle member which combines with the inner nozzle member to define an annular throat for the compressed air to flow through and achieve supersonic flow, wherein the outer nozzle member is axially movable relative to the inner nozzle member to adjust the cross-sectional area of the annular throat, and wherein distinct positions of the outer nozzle member relative to the inner nozzle member are associated with an annular throat area optimized for a given air pressure within the range of air pressures of the source of compressed air. 18. The variable flow nozzle according to claim 17, wherein one surface of the inner nozzle member and the outer nozzle member which forms the annular throat is a straight surface and the other is a non-linear contoured surface. 19. The variable flow nozzle according to claim 17, wherein the outer nozzle member is threaded to the inner nozzle member to provide the axial movement of the outer nozzle member is axially movable relative to the inner nozzle member. 20. A complete nozzle or nozzles consisting of one or more sets of related partial nozzle structures in series on a first element, with a spatial relationship to a second element containing complementary partial nozzle structures, the partial nozzle structures of the first element related by a fixed or variable value to the partial nozzle structures mounted on the second element, the elements in rotative and axial relationship to each other, such that complete nozzles are formed by the cooperative positioning of the first element to the second element and the nozzles so formed produce a designated nozzle type such as supersonic, sonic, or sub sonic and produce a specified output power, mass flow rate and fluid pressure combination when supplied by an appropriate pressurized air, gas, fluid, or particle containing fluid source.
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