High pressure fluid spray nozzle incorporating a flow controlled switching valve
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16K-031/12
B05B-003/04
B05B-003/06
B05B-001/16
B08B-009/049
E03F-009/00
출원번호
US-0367080
(2012-02-06)
등록번호
US-8863775
(2014-10-21)
발명자
/ 주소
Zink, Gerald P.
O'Connor, Neil C.
출원인 / 주소
Stonage, Inc.
대리인 / 주소
Greenberg Traurig, LLP
인용정보
피인용 횟수 :
3인용 특허 :
10
초록▼
A flow path switching valve is disclosed that can be operated remotely simply by turning flow on and off. The switching valve may be incorporated into the body of a high pressure nozzle. In one embodiment a mid portion of the valve body has at least one passage therein leading from a central axial b
A flow path switching valve is disclosed that can be operated remotely simply by turning flow on and off. The switching valve may be incorporated into the body of a high pressure nozzle. In one embodiment a mid portion of the valve body has at least one passage therein leading from a central axial bore to first and second external ports. A poppet member received in the central axial bore directs fluid flow in a first position to the first external ports. The poppet member, when in a second position, closes the central axial bore through the outlet end of the valve body and permits fluid flow through the second set of external ports. Selection of the different flow paths is made by simply reducing flow through the valve below a predetermined fluid flow threshold and then increasing the flow rate above the threshold.
대표청구항▼
1. A nozzle comprising: a hollow body having a central bore, one or more first ports, and one or more second ports, wherein each first and second port extends through the body from the central bore; anda switching valve cartridge including a poppet and a guide disposed in the central bore, wherein t
1. A nozzle comprising: a hollow body having a central bore, one or more first ports, and one or more second ports, wherein each first and second port extends through the body from the central bore; anda switching valve cartridge including a poppet and a guide disposed in the central bore, wherein the poppet and guide cooperate to direct fluid flow from an inlet to the central bore to the one or more first ports upon application of fluid flow above a predetermined threshold to the inlet to the central bore and, if fluid flow drops below a predetermined threshold, direct fluid flow from the inlet to the central bore to the one or more second ports when fluid flow is next applied above the predetermined threshold. 2. The nozzle according to claim 1 wherein the poppet is located at a first position when fluid flow is directed through the one or more first ports and at a second position when fluid flow is directed through the one or more second ports. 3. The nozzle according to claim 2 wherein the poppet is at a third position whenever fluid flow drops below the predetermined threshold. 4. The nozzle according to claim 2 wherein the poppet at the first position directs fluid flow through a first set of the first ports and directs fluid flow through a second set of the second ports at the second position. 5. The nozzle according to claim 4 wherein each transition below the predetermined threshold causes the fluid flow to alternate between the first and second sets of ports. 6. A nozzle comprising: a hollow body connectable to a high pressure fluid supply, the body having a central bore, a first plurality of ports extending out of the body from the central bore and a second plurality of ports extending out of the body from the central bore; anda switching valve cartridge assembly including a poppet and guide disposed in the central bore operable to direct fluid flow from an inlet to the central bore to one or more of the first plurality of ports upon application of fluid flow above a predetermined threshold to the inlet to the central bore and direct fluid flow from the inlet to the central bore to one or more of the second plurality of ports upon fluid flow through the inlet dropping below the predetermined threshold and then exceeding the predetermined threshold. 7. A nozzle comprising: a hollow body connectable to a high pressure fluid supply, the body having a central bore, a first plurality of ports extending out of the body from the central bore and a second plurality of ports extending out of the body from the central bore; anda switching valve cartridge assembly disposed in the central bore operable to direct fluid flow from an inlet to one or more of the first plurality of ports upon application of fluid flow above a predetermined threshold to the inlet and direct fluid flow from the inlet to one or more of the second plurality of ports upon fluid flow dropping below the predetermined threshold and then exceeding the predetermined threshold, wherein the cartridge assembly comprises:a generally tubular valve cartridge case disposed in the central bore of the hollow body, the case having an inlet end, an outlet end, a mid portion, and a central axial bore through the inlet end and at least the mid portion, the mid portion having at least one first opening leading from the central axial bore out through the mid portion of the cartridge case, and the outlet end having at least one second opening leading from the central axial bore out through the end portion of the cartridge case;a generally tubular valve poppet having a central passage therethrough, the poppet being movably disposed in the central axial bore of the cartridge case, the poppet having an open tubular rear end portion, a central portion and a front end portion, the central portion of the poppet having an external peripheral annular flange between the rear end portion and the central portion, the central portion having at least a first passage leading out of the poppet and at least a second passage spaced from the first passage leading out of the poppet;a biasing member between the valve cartridge case and the flange around the central portion, the poppet member biasing the poppet member axially away from the inlet end of the cartridge case; anda guide member positioned around the tubular rear end portion of the poppet and fastened to the hollow nozzle housing at a fixed distance from the cartridge case, the guide member engaging a corresponding feature on the rear end portion of the poppet to align the first passage of the central portion of the poppet with the at least one opening of the cartridge at a first position of the poppet when fluid flow is introduced into the rear end of the poppet, misalign the first passage with the at least one opening when fluid flow is reduced below a predetermined flow rate threshold, and align the second passage of the central portion of the poppet with the other opening in the valve cartridge case when fluid flow is next introduced in the inlet end of the poppet above the flow rate threshold. 8. The nozzle according to claim 7 wherein the outlet end of the poppet engages a complementary seat in the outlet end of the cartridge closing the central axial passage when the poppet member is in the second position. 9. The nozzle according to claim 8 wherein when fluid flow is again reduced below the predetermined threshold the valve disc of the poppet member disengages the valve seat and opens the central passage through the outlet portion of the poppet. 10. The nozzle according to claim 9 wherein when fluid flow is again increased above the predetermined threshold the guide causes the poppet to again return to the first position. 11. The nozzle according to claim 7 wherein the guide member and bias member cooperate to position the poppet at a common axial position whenever fluid flow decreases below the predetermined threshold. 12. A switching valve cartridge comprising: a generally tubular valve cartridge case having an inlet end, an outlet end, a mid portion, and a central axial bore through the inlet end and at least the mid portion, the mid portion having at least one first opening leading from the central axial bore out through the mid portion of the cartridge case, and the outlet end having at least one second opening leading from the central axial bore out through the end portion of the cartridge case;a generally tubular valve poppet having a central passage therethrough, the poppet being movably disposed in the central axial bore of the cartridge case, the poppet having an open tubular rear end portion, a central portion and a front end portion, the central portion of the poppet having an external peripheral annular flange between the rear end portion and the central portion, the central portion having at least a first passage leading out of the poppet and at least a second passage spaced from the first passage leading out of the poppet;a biasing member between the valve cartridge case and the flange around the central portion, the poppet member biasing the poppet member axially away from the inlet end of the cartridge case; anda guide member positioned around the tubular rear end portion of the poppet at a fixed distance from the cartridge case, the guide member engaging a corresponding feature on the rear end portion of the poppet to align the first passage of the central portion of the poppet with the at least one opening of the cartridge at a first position of the poppet when fluid flow is introduced into the rear end of the poppet, misalign the first passage with the at least one opening when fluid flow is reduced below a predetermined flow rate threshold, and align the second passage of the central portion of the poppet with the other opening in the valve cartridge case when fluid flow is next introduced in the inlet end of the poppet above the flow rate threshold. 13. The cartridge assembly according to claim 12 wherein the outlet end of the poppet engages a complementary seat in the outlet end of the cartridge closing the central axial passage when the poppet member is in the second position. 14. The cartridge assembly according to claim 13 wherein when fluid flow is again reduced below the predetermined threshold the valve disc of the poppet member disengages the valve seat and opens the central passage through the outlet portion of the poppet. 15. The cartridge assembly according to claim 14 wherein when fluid flow is again increased above the predetermined threshold the guide causes the poppet to again return to the first position. 16. The cartridge assembly according to claim 12 wherein the guide member and bias member cooperate to position the poppet at a common axial position whenever fluid flow decreases below the predetermined threshold. 17. The cartridge assembly according to claim 16 further comprising a ball disposed in the at least one second passage for sealing the second opening through the cartridge case when the poppet is in the first position. 18. The cartridge assembly according to claim 12 wherein the cartridge case has four first openings and four second openings. 19. The cartridge assembly according to claim 18 wherein the poppet has four first passages and four second passages. 20. The cartridge assembly according to claim 19 further comprising four balls, one in each of the second passages.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.