Fan blade having abrasion resistant leading edge

Details Fan blade having abrasion resistant leading edge Fan blade having abrasion resistant leading edge

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 29/38 (2006.01)

Patent

CA 2088248

2088248 9202731 PCTABS00010 An elongated, flexible protective urethane member (54) is bonded and firmly affixed to the leading edge (38) of a glass fiber reinforced polyester skin fan blade (10) for large diameter industrial water cooling tower fans. Firm bonding and adherence of the protective member to the leading edge of the blade skin is obtained by curing of the skin (46) with the protective member in place over the leading edge of the blade. Mechanical connection of the urethane member to the polyester blade body is accomplished by provision of a series of holes (56) along opposed longitudinal margins (54a, 54b) of the member which allow fluid polyester resin to flow into such openings during cure of the blade body resin layers, and by application of a glass fiber reinforced synthetic resin hold-down strip (62) over opposed longitudinally extending edges of the hold-down strips and adjacent areas of the blade skin.

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