Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Having wear liner – sheathing or insert
Patent
1978-11-06
1982-03-09
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Having wear liner, sheathing or insert
416229A, 416241R, F01D 528
Patent
active
043186726
ABSTRACT:
A considerable increase of the life time of metallic members, particularly the blades of fans or turbines, which are exposed to air-borne abrasive particles is obtained by providing such members with a wear-resisting attachment comprising at least two wear-resisting layers consisting of materials having complementary relationships of the erosion caused by said abrasive particles to the impact angle of the particles, said attachment being applied to surface portions of the members to be protected.
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patent: 4123595 (1978-10-01), Chang
R. A. Wallis, "Dust Erosion of Fan Materials", Mechanical and Chemical Engineering Transactions, 1975, pp. 33-39.
C. A. Smeltzer et al., "Mechanisms of Metal Removal By Impact Dust Particles", _Journal of Basic Engineering, Sep. 1970, pp. 639-654.
Nordisk Ventilator Co. A/S
Powell Jr. Everette A.
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