F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
251/33
F16K 5/00 (2006.01) B65G 53/46 (2006.01)
Patent
CA 1109851
ABSTRACT OF THE DISCLOSURE The invention provides for a rotary valve of the type employed for transporting solid material between zones having a fluid pressure differential, with a minimum fluid leakage be- tween the zones. The valve comprises a housing having a bore, passages communicating with the bore and designed to be coupled to the respective zones, and a rotor which is housed within the bore, the rotor defining an axial drive shaft, a pair of spaced end plates on the shaft and a series of radial vanes disposed between the end plates, the valve being characterised in the provision of material helically wound threads or grooves formed on the peripheral surfaces of the end plates which urge material trapped therein inwardly into the zone intermediate the end plates upon rotation of the rotor in a predetermined direction.
296619
Bourne Joyce A.
G. Ronald Bell & Associates
LandOfFree
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