Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Turbo machine
Patent
1990-01-29
1991-10-01
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Turbo machine
416237, 416DIG5, F04D 2934, F04D 2938
Patent
active
050528920
ABSTRACT:
A high efficiency impeller has blades which are formed of plate material. Each blade has a first span-wise bend which extends generally parallel to the trailing edge and through about the center of the blade measured cord-wise and extending the length of the blade from the root end to the tip end. The first bend divides the blade into a back portion and a front portion. The front portion is further divided by a second bend line which extends from the intersection of the first bend line with the tip of the blade diagonally to the leading edge of the blade at a point about one-fifth to one-third the span-wise length outwardly from the blade root. The material of the blade is bent about each of the bend lines, in the same direction, to provide camber and concavity for the blade. The leading and trailing edges of the blade are chamfered.
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Undated brochure Chemineer HE-3 High-Efficiency Impeller.
Two undated sheets of drawings entitled Chemineer-Kenics High Efficiency Impeller.
Undated glossy photograph of High Efficiency Impeller.
Chemineer, Inc.
Larson James A.
Look Edward K.
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