发明名称 |
VALVOLA CON DISPOSITIVO DI SICUREZZA, IN PARTICOLARE PER UGELLO DI POLVERIZZAZIONE A PRESSIONE DI UN IMPIANTO DI RISCALDAMENTO |
摘要 |
<p>Disclosed is a valve that is particularly useful in a pressure atomizing nozzle of a heating installation and includes a valve housing in which there is a valve seat with an adjoining valve chamber and a flow passage that opens to a housing outlet. In the valve chamber there is provided a spring for resiliently urging the closure member to seat on the valve seat. The valve chamber has a guide section adjacent the valve seat that is of a transverse cross section corresponding to a transverse cross section of the closure member while the housing and closure member provide a free flow passage to the outlet when the closure member is moved axially away from the valve seat at least a preselected axial distance. The valve is of a construction that ensures that fluid can flow through the valve only after a particular desire pressure has been reached, but immediately after the conveying pressure drops below a predetermined value, fluid can no longer reach the housing outlet.</p> |
申请公布号 |
IT1242279(B) |
申请公布日期 |
1994.03.03 |
申请号 |
IT19900067025 |
申请日期 |
1990.01.12 |
申请人 |
DANFOSS A/S |
发明人 |
PREBEN NORSKOV;LEIF BOESEN BONNERUP;INGVARD MOSBY MADSEN |
分类号 |
F16K17/04;B05B1/30;F16K15/04;F23D11/38;(IPC1-7):F16K;B05B;F23D |
主分类号 |
F16K17/04 |
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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