Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Plural distributing means immediately upstream of runner
Patent
1975-10-16
1977-03-08
Raduazo, Henry F.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Plural distributing means immediately upstream of runner
4151995, F01D 102
Patent
active
040110281
ABSTRACT:
An axial-flow transsonic compressor wherein a flow path is defined by a housing of the compressor and an inlet bladed stator, at least one transsonic stage and at least one subsonic stage, arranged within the housing in succession along the path of the flow of the fluid being compressed. The transsonic stage includes a transsonic rotor and a bladed stator. The subsonic stage includes a rotor and a stator. Each blade of the inlet stator structure has an angle of setting of a profile of a peripheral section perpendicular to a blade axis determined with respect to a vector of the circumferential speed of the transsonic rotor in excess of 90.degree.; an angle of setting of a profile of a radially innermost or sleeve section perpendicular to the blade axis determined with respect to the vector of the circumferential speed of the transsonic rotor below 90.degree. and an angle of setting of a profile of a middle section perpendicular to the blade axis determined with respect to the vector of the circumferential speed of the transsonic rotor substantially equalling 90.degree.. The curvature of the middle line of a profile of the middle section equals zero. Each blade of the stator structure of the transsonic stage has a chord value increasing from a sleeve section profile toward a peripheral section profile.
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