Rotary kinetic fluid motors or pumps – Means – disposition or arrangement for causing supersonic...
Patent
1997-12-03
2000-01-25
Look, Edward K.
Rotary kinetic fluid motors or pumps
Means, disposition or arrangement for causing supersonic...
415914, 415191, 415192, 415195, 416193A, 416248, 416219R, 416220R, F01D 110, F01D 102, B64C 1100
Patent
active
060171863
ABSTRACT:
A rotary turbomachine, and particularly a turbojet engine, has a compressor stage that is especially adapted for operation in the transonic region. The compressor stage includes a rotor (1) having a hub (2) and a plurality of compressor blades (3) extending radially therefrom, and a stator having a plurality of compressor blades extending radially between a stator hub and a housing. The hub (2) of the rotor (1), and/or the hub of the stator, and/or the housing of the stator, have a circumferential surface contour that is not continuously rotationally symmetrical. Namely, a concave contour (K) is provided in the circumferential surface of the hub near the base of each blade (3) on the pressure side (PS) thereof, while the circumferential surface on the suction side (SS) of the base of each blade has a contour that is linear, slightly convex, convex/concave, or slightly concave to a lesser degree than the concave contour (K) on the pressure side of each blade. The hub contour slopes and transitions smoothly radially outwardly from the concave contour (K) on the pressure side to the flatter or convex contour on the suction side. In this manner, fluid flow velocities on both the pressure side and the suction side of each blade are reduced, especially under transonic operating conditions, and compression shock losses can be minimized.
REFERENCES:
patent: 2805818 (1957-09-01), Ferri
patent: 4135857 (1979-01-01), Pannone et al.
patent: 4465433 (1984-08-01), Bischoff
patent: 4795312 (1989-01-01), Purcaru
patent: 5228833 (1993-07-01), Schoenenberger et al.
patent: 5397215 (1995-03-01), Spear et al.
patent: 5554000 (1996-09-01), Katoh et al.
Hoeger Martin
Schmidt-Eisenlohr Uwe
Barton Rhonda
Fasse W. F.
Fasse W. G.
Look Edward K.
MTU-Motoren-und Turbinen-Union Muenchen GmbH
LandOfFree
Rotary turbomachine having a transonic compressor stage does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary turbomachine having a transonic compressor stage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary turbomachine having a transonic compressor stage will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2312059