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US 6,471,578 B1Granted
Ventilator by force of nature with pressurization conduit hood
OwnerTai-Her Yanginventor
Life of this patent
Estimating the term…
Abstract
A wind-powered ventilator includes a pressurization conduit hood mounted on the periphery of an automatic directional type or worm gear type ventilator. The conduit hood is arranged to pressurize atmospheric wind, however feeble and minimal, and conduct the wind to produce a pressurization effect, causing a pressurized wind moment to pass directionally through the ventilator, thereby achieving enhanced drafting efficiency without the intervention of artificial power sources.
Claims8
A wind-powered ventilator assembly, comprising:
- a ventilator arranged to exhaust air through an exhaust opening by force of natural wind;
- and
- a pressurization hood mounted on a periphery of the ventilator, said pressurization hood having an outlet aligned with said exhaust opening such that wind passing through said pressurization hood exits through said outlet and passes said exhaust opening to draw said exhaust air out of said ventilator,
- wherein said pressurization hood is tapered to continually increase a wind force passing completely through the pressurization hood, such that said continually increasing wind force exiting through the outlet aligned with said exhaust opening increases an amount of air drawn from said exhaust opening by said wind,
- wherein said ventilator comprises:
- an elbow draft pipe having first and second ends, the elbow draft pipe including a vertical first leg having an opening at the first end of the elbow draft pipe and a horizontal second leg having said exhaust opening at the second end of the elbow draft pipe, said first end being rotatably fitted in an opening in a chassis and said elbow draft pipe being arranged to rotate relative to said chassis within said chassis opening,
- a generally cylindrical conduit hood installed on a perimeter of said elbow draft pipe, said conduit hood being attached to the ventilator by at least one axially extending rib,
- wherein a diameter of said generally cylindrical conduit hood at said outlet aligned with said exhaust opening at the second end of the elbow draft pipe is smaller than a diameter of said generally cylindrical conduit hood at an inlet end to thereby provide said pressurization effect, and
- further comprising at least one radially extending rib attached to a hub at the second end of the elbow draft pipe, and a fan articulated to a front side of said hub, said fan including a plurality of vanes whose distal ends extend close to said conduit hood, said fan being driven by pressurized air exiting from said conduit hood to pump air from said exhaust opening, said vanes each including a neck located at a side of said ventilator exhaust opening, and said vanes being declined in a common direction.
6 more elements
A wind-powered ventilator assembly, comprising:
- a ventilator arranged to exhaust air through an exhaust opening by force of natural wind;
- and
- a pressurization hood mounted on a periphery of the ventilator, said pressurization hood having an outlet aligned with said exhaust opening such that wind passing through said pressurization hood exits through said outlet and passes said exhaust opening to draw said exhaust air out of said ventilator,
- wherein said pressurization hood is tapered to continually increase a wind force passing completely through the pressurization hood, such that said continually increasing wind force exiting through the outlet aligned with said exhaust opening increases an amount of air drawn from said exhaust opening by said wind, and
- wherein said ventilator comprises a worm gear including a plurality of arched vanes on a perimeter of the worm gear, and wherein said conduit hood comprises at least one arched plate, a directional vane, and a hub, said hub being connected to one end of the worm gear, said directional vane extending upwardly from said hub and said at least one arched plate extending downwardly past said worm gear, said hub being rotatable relative to said worm gear to permit said at least one arched plate to rotate relative to the worm gear in response to a force of wind against said directional vane, and said arched plate having first and second ends, the first end of said arched plate being further from said worm gear than the second end of said arched plate to thereby pressurize wind passing between said arched plate and said worm gear.
2 more elements
Dependencies are inferred from the claim text.