发明名称 |
Automatically controlled irrigation system |
摘要 |
An irrigation system of the type comprising a plurality of nozzles spaced along a pipeline fed at one end from a source of supply of irrigation liquid, which latter may be purely water or may be water with additives, in which in order to avoid different spray rates due to a loss in pressure along the pipeline each nozzle is provided with a valve and an associated resilient subsidiary reservoir, the valves operating to close off the nozzles while all the subsidiary reservoirs charge up to the line pressure and then, when a control valve diverts the source of supply to a discharge outlet all the nozzles receive liquid in the same pressure from their associated subsidiary reservoir; when the subsidiary reservoirs are all back at atmospheric pressure the cycle recommences.
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申请公布号 |
US4176791(A) |
申请公布日期 |
1979.12.04 |
申请号 |
US19770856950 |
申请日期 |
1977.12.02 |
申请人 |
FIAT SPA |
发明人 |
CATTANEO, MAURIZIO;MASOERO, RENZO |
分类号 |
A01G25/02;A01G25/16;B05B1/30;(IPC1-7):B05B15/00 |
主分类号 |
A01G25/02 |
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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