F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 9/04 (2006.01) F04C 2/107 (2006.01)
Patent
CA 2109126
An eccentric screw pump having a rigid rotor, which is embodied as a spiral and has a circular cross-sectional configuration, and also having a stator that is provided with an elastic lining that delimits a cavity which accommodates the rotor and has the form of a spiral with a cross-sectional configuration that essentially has the shape of a rectangle bounded on opposite sides by a respective semicircle. The sides of the essentially rectangular portion that interconnect the semicircles, proceeding essentially from the semicircles, are provided with projections that bulge convexly in a direction toward an interior of the cavity of the stator. In the vicinity of the inlet end of the stator, the projections bulge inwardly to a lesser extent than at the pressure side of the stator.
Pompe à vis excentrée comprenant un rotor rigide, en forme de spirale à coupe transversale circulaire, et un stator à enveloppe élastique, délimitant une cavité qui reçoit le rotor, en forme de spirale à coupe transversale essentiellement rectangulaire et délimité aux côtés opposés par un demi-cercle respectif. Les côtés de la partie essentiellement rectangulaire qui interconnectent les demi-cercles, se prolongeant essentiellement à partir de ces derniers, sont dotés de saillies convexes qui se projettent vers l'intérieur de la cavité du stator. Près de l'extrémité de l'entrée du stator, les saillies se projettent moins vers l'intérieur qu'au côté de refoulement du stator.
Fetherstonhaugh & Co.
Jager Arnold
LandOfFree
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