发明名称 |
PRESSE. VALVOLA DI SICUREZZA, IN PARTICOLARE VALVOLA A 5/4 VIE, PER ORGANI DI LAVORO AZIONATI DA UN MEZZO IN PRESSIONE, AD ESEMPIO CILINDRI A DOPPIO EFFETTO PER |
摘要 |
<p>A safety valve assembly for regulating the flow of a fluid under pressure to a fluid operated system e.g. a double acting cylinder element includes a housing with an inlet port, outlet ports and working ports and accommodating a pair of parallel valve spindles which are controllable by respective pilot valves so as to be shiftable between two valve positions. Each valve spindle is provided with a working piston, valve piston and a control piston which cooperates with a respective valve seat as defined by the housing. The control pistons of the valve spindles are successively disposed in a passageway extending between one of the working ports and one of the outlet ports.</p> |
申请公布号 |
IT8720328(D0) |
申请公布日期 |
1987.04.30 |
申请号 |
IT19870020328 |
申请日期 |
1987.04.30 |
申请人 |
HERION WERKE AG |
发明人 |
HELMUT OTT;GUNTER BALDAUF |
分类号 |
F15B20/00;F16K31/124;F16K35/14;(IPC1-7):F15B/ |
主分类号 |
F15B20/00 |
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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