发明名称 |
Multiple Pulsejet Boring Device |
摘要 |
A method and device for boring a hole [5] through a material along a desired path includes an umbilical subsystem [2000] connected to a boring subsystem [3000] having a plurality of pulsejets [3100]. These pulsejets [3100] repeatedly receive and ignite a combustible fluid [7] in a combustion chamber [3230] causing a portion of the fluid [7] to be forced out of a nozzle [3260] at high speeds as a fluid slug [10] that impacts materials ahead of the pulsejet [3100]. A controller [3310] controls the amount of fluid provided to each pulsejet [3100], and the firing timing, thereby controlling the intensity in which each slug [10] impacts the material. By modulating the intensity and firing sequence of each of the pulsejets [3100], material ahead of the boring subsystem [3000] is differentially bored thereby allowing steering of the boring subsystem [3000].
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申请公布号 |
US2009057017(A1) |
申请公布日期 |
2009.03.05 |
申请号 |
US20060886374 |
申请日期 |
2006.03.23 |
申请人 |
BERGER W ANDREW;SPALLETTA ROBERT A;CARTER JERRY A;PELL RICHARD M;MAZURKIEWICZ MARIAN |
发明人 |
BERGER W. ANDREW;SPALLETTA ROBERT A.;CARTER JERRY A.;PELL RICHARD M.;MAZURKIEWICZ MARIAN |
分类号 |
E21B7/08 |
主分类号 |
E21B7/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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