Rotary high-pressure, low-capacity pump

Details Rotary high-pressure, low-capacity pump Rotary high-pressure, low-capacity pump

F - Mech Eng,Light,Heat,Weapons

01

D

103/74

F01D 1/36 (2006.01)

Patent

CA 1231584

A B S T R A C T A high-pressure, low-capacity pump comprises a rotor of a smooth, planar, circular surface rotating in a pump casing provided with a stator surface facing the rotor surface at a short distance. The stator surface is in the shape of a circular, flat-topped ridge having its center displaced in respect of the rotor center by a given distance. The circular ridge is characterized by that it is bisected along a line extending through both the center of the circle and the rotor center and that it is of different height on both sides of the bisecting line, creating a respective narrow gap (h) and a wide gap (H) between the ridge and the rotor surface. A fluid inlet is provided in the casing on the outside of the circular ridge and a fluid outlet on the inside of the ridge. Owing to the eccentricity of the rotor and the stator ridge more fluid is drawn by the drag of the rotor surface into the space defined by the stator ridge through the wide gap than escapes through the narrow gap, whereby the pressure increases inside the stator space and drives the fluid out through the fluid outlet.

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