Flow regulator
AssigneeAB Svenska Flaktfabriken
InventorsKarl-Erik Fermer, Leif Hulthe
Life of this patent
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Abstract
A flow regulator for regulating a gas flow passing through a tubular casing containing a plurality of radial shafts, each carrying a pivotably adjustable blade and being fixedly secured at one end to said casing and at the other end to a concentric interior hub. A protruding crank on each adjusting blade is connected to an adjusting ring so that each blade is pivoted on its shaft axis when the ring is displaced.
Claims10
A flow regulator for controlling a gas flow, a tubular casing having a gas-flow passage therethrough, a plurality of radial shafts in said casing, an adjustable blade mounted for pivotal movement on each shaft axis, each blade extending from said casing inwardly and ending adjacent the geometrical center axis of said tubular casing, a hub located concentrically in said casing adjacent said center axis, an adjusting ring concentrically located on one side of said hub and having an adjusting mechanism, said ring being connected to all blades and being operable to pivot said blades simultaneously and uniformly, the improvement wherein said shafts are fixedly secured to both said casing and said hub, and that each blade is pivotally mounted on its shaft by means of an outer bearing adjacent said casing and by means of an inner bearing adjacent said hub, said outer bearing being positioned on said shaft at least indirectly by said casing, and said inner bearing being positioned independently of said hub and that each blade has a protruding crank connected to said adjusting ring for displacement thereby.
A flow regulator for controlling a gas flow, a tubular casing having a gas-flow passage therethrough, a plurality of radial shafts in said casing, an adjustable blade mounted for pivotal movement on each shaft axis, each blade extending from said casing inwardly and ending adjacent the geometrical center axis of said tubular casing, a hub located concentrically in said casing adjacent said center axis, an adjusting ring concentrically located on one side of said hub and having an adjusting mechanism, said ring being connected to all blades and being operable to pivot said blades simultaneously and uniformly, the improvement wherein said shafts are fixedly secured to both said casing and said hub, and that each blade is pivotal on its shaft and has a protruding crank connected to said adjusting ring for displacement thereby, said protruding crank being secured to said adjusting ring by a ball and socket joint.
A flow regulator for controlling a gas flow, a tubular casing having a gas-flow passage therethrough, a plurality of radial shafts in said casing, an adjustable blade mounted for pivotal movement on each shaft axis, each blade extending from said casing inwardly and ending adjacent the geometrical center axis of said tubular casing, a hub located concentrically in said casing adjacent said center axis, an adjusting ring concentrically located on one side of said hub and having an adjusting mechanism, said ring being connected to all blades and being operable to pivot said blades simultaneously and uniformly, the improvement wherein said shafts are fixedly secured to both said casing and said hub, and that each blade is pivotal on its shaft and has a protruding crank connected to said adjusting ring for displacement thereby, each adjustable blade being divided into two longitudinally-extending parts by the associated shft, one of said parts being greater in width than the other part, the wider part being turned away from said gas flow when the flow regulator is entirely open.
Dependencies are inferred from the claim text.