Industrial cooling tower fan blade having abrasion resistant leading edge

Patent · Tue Jun 23 00:00:00 EDT 1992

OSTI ID:7088561

Burdick, L F; Mayes, S E

This patent describes a glass fiber reinforced, synthetic resin fan blade for large diameter industrial water cooling tower fans, wherein the outer body portion of the blade is constructed of a thermoset resin and has upper and lower surfaces of which a part thereof define an elongated leading which would be subject to abrasion deterioration during use of the blade. This patent describes improvement in an elongated protective outermost sheet member having opposed, longitudinally extending edges and wrapped over at least a part of the longitudinal extent of the leading edge of the blade with one of the longitudinally extending edges of the member overlying the upper surface of the blade outer body portion and the other longitudinally extending edge of the member on the lower surface of the blade outer body portion, means for mechanically attaching the member to the blade outer body portion substantially throughout the length of the member; and means for attaching the member to the blade outer body portion including upper and lower hold down strips of a synthetic resin and disposed in overlying relationship to the longitudinally extending edges of the member on the upper and lower surfaces of the blade outer body portion and over the longitudinally extending areas of the blade outer body portion which are adjacent respective longitudinally extending edges of the member, the member being provided with a series of openings therein, the thermoset resin making up the blade outer body portion extending through respective openings in the member and being joined with an overlying hold down strip.

• Assignee: Marley Cooling Tower Co., Mission, KS (United States)
• Patent Number(s): US 5123814; A
• Application Number: PPN: US 7-558770
• OSTI ID: 7088561
• Resource Relation: Patent File Date: 27 Jul 1990
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING
20 FOSSIL-FUELED POWER PLANTS
COOLING TOWERS
MATERIALS TESTING
REINFORCED MATERIALS
WEAR RESISTANCE
ELASTOMERS
FIBERS
GLASS
HEAT RESISTANT MATERIALS
RESINS
TURBINE BLADES
URETHANE
CARBAMATES
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACID SALTS
MATERIALS
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
TESTING
360604* - Materials- Corrosion
Erosion
& Degradation
360606 - Other Materials- Physical Properties- (1992-)
420400 - Engineering- Heat Transfer & Fluid Flow
200101 - Fossil-Fueled Power Plants- Cooling & Heat Transfer Equipment & Systems