Lateral channel pump
OwnerFriedrich Schweinfurterinventor
Life of this patent
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Abstract
In a lateral channel pump, the rotor blade compartments of a ring of blades in the rotor alternate in length, toward the center of the rotor, between long and short rotor blade compartments. The associated lateral channel has an outer contour concentric with the center of the rotor and an inner contour which tapers helically towards the outlet port. At the inlet point of the lateral channel, a partial circulating current is separated from the main circulating current as a result of the longer blade compartments. The partial current, due to its higher speed, causes the main current to circulate more rapidly between the rotor blade compartment and the lateral channel. As a result, the main current is accelerated and a higher level of efficiency is obtained.
Claims8
A lateral channel pump, comprising a housing provided with intake and outlet ports, a shaft extending into said housing, seal means sealingly engaged between said shaft and said housing, a rotor secured to said shaft, and a flow channel which starts from said intake port in said housing and leads to said outlet port in said housing through at least one lateral channel and also through blade compartments of said rotor, characterized in that the blade compartments are defined by a ring of blades of said rotor which alternate in length, towards the center of the rotor, between a long blade compartment and a short blade compartment, the lateral channel has a constant outer contour concentric with the center of the rotor and an inner contour tapering helically towards said outlet port, the spacing of the inner contour relative to said shaft at said intake port corresponds to the spacing of the long rotor blade compartment relative to the shaft and, at the outlet port, the spacing of the inner contour corresponds to the spacing of a short rotor blade compartment relative to the shaft.
Dependencies are inferred from the claim text.