F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/64
F16K 17/04 (2006.01) F16K 17/08 (2006.01)
Patent
CA 2020277
A pressure relief valve for pressure equalization between a closed space and the surrounding atmosphere comprises a valve housing (1) with an upwardly facing blow-off opening (11) in which a conical valve seat (13) is formed. A drop-shaped body (14) arranged in the blow-off opening (11) is formed on its underside with a conical valve surface (15) co-operating with the valve seat (13). The drop-shaped body is connected with a lifting disc (21) which has a larger area than the valve seat (13) and is surrounded by a free passage slot (22). By suitable dimensioning, advantageous characte- ristics can be obtained for pressure and blow-off velocity as functions of the blow-off quantity, and the blow-off will always take place in the form of a jet which by means of the drop-shaped body (14) is directed vertically upwards at high velocity.
Fetherstonhaugh & Co.
Sorensen Emil Aarestrup
LandOfFree
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