发明授权
- 专利标题: High pressure fluid spray nozzle incorporating a flow controlled switching valve
- 专利标题(中): 高压流体喷嘴结合有流量控制切换阀
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申请号: US13367080申请日: 2012-02-06
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公开(公告)号: US08863775B2公开(公告)日: 2014-10-21
- 发明人: Gerald P. Zink , Neil C. O'Connor
- 申请人: Gerald P. Zink , Neil C. O'Connor
- 申请人地址: US CO Durango
- 专利权人: Stonage, Inc.
- 当前专利权人: Stonage, Inc.
- 当前专利权人地址: US CO Durango
- 代理机构: Greenberg Traurig, LLP
- 主分类号: F16K31/12
- IPC分类号: F16K31/12 ; B05B3/04 ; B05B3/06 ; B05B1/16 ; B08B9/049 ; E03F9/00
摘要:
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.
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