20-03-2014 дата публикации
Номер: US20140079543A1
Disclosed is a regenerative fluid machine having guide vanes on a flow channel wall. The regenerative fluid machine includes a circular plate-shaped impeller having a plurality of vanes radially formed on an outer circumference thereof at regular intervals, casings in which the impeller is housed, and flow channels, each of which has a suction hole and a discharge hole in opposite ends thereof, and which are circumferentially disposed within the casings so as to face the vanes. The plurality of guide vanes having an inclined angle (θ) with respect to a radial direction protrude from the flow channel wall in a rotational direction of the impeller so that a relative inflow angle (β) of the fluid introduced into the impeller grooves is increased and thus an absolute inflow angle (α) is decreased. 1. A regenerative fluid machine having guide vanes on a flow channel wall comprising:{'b': 10', '12, 'a circular plate-shaped impeller () that has a plurality of vanes () radially formed on an outer circumference thereof at regular intervals;'}{'b': 20', '10, 'casings () in which the impeller () is housed; and'}{'b': 30', '32', '34', '10, 'flow channels (), each of which has a suction hole () and a discharge hole () in opposite ends thereof, and which are circumferentially formed in the casings so as to face the vanes (),'}{'b': 40', '10', '30', '30', '30', '30', '14', '40', '30, 'i': a,', 'b,', 'c, 'wherein the plurality of guide vanes () having an inclined angle (θ) with respect to a radial direction protrude in a rotational direction of the impeller () throughout an entire wall () of each flow channel () so that a relative inflow angle (β) of a fluid introduced into impeller grooves () is increased, and an absolute inflow angle (α) of the fluid is decreased, and the guide vanes () are formed at a height of 5 to 30% of a depth of the flow channel ().'}240303234. The regenerative fluid machine of claim 1 , wherein the guide vanes () are formed on at least ⅓ of an area of the ...
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