초록 ▼

A high efficiency pump having relatively-moving parts constituted of a light weight material and a coating on at least one of the parts to effect essentially zero clearance between the parts where they merge together. The coating is comprised of solid lubricants in a polymer resin matrix stable up t

A high efficiency pump having relatively-moving parts constituted of a light weight material and a coating on at least one of the parts to effect essentially zero clearance between the parts where they merge together. The coating is comprised of solid lubricants in a polymer resin matrix stable up to 700°F.

대표청구항 ▼

A method of making a high efficiency fluid pumping apparatus for gas compressors or liquid transfer, comprising: (a) forming aluminum alloy based relativelymovable parts that entrain and effect a pumping action of a fluid, said parts having surfaces that cyclically merge together and move apart to t

A method of making a high efficiency fluid pumping apparatus for gas compressors or liquid transfer, comprising: (a) forming aluminum alloy based relativelymovable parts that entrain and effect a pumping action of a fluid, said parts having surfaces that cyclically merge together and move apart to transfer fluid that places a shear load on said surfaces; (b) rough machining said surfaces to a surface finish of 100-150 micro inches; (c) preparing said rough machined surface by etching or phosphating; (d) depositing a coating on said prepared surfaces by one of room temperature spraying, transfer film rolling and thermal spraying, said coating consisting of a mixture of resin and solid lubricant particles, said solid lubricant particles having an average particle size of 10 microns or less, said coating being deposited in a thickness to create a slight interference fit at said zone; (e) slowly heating said deposited coating to the temperature level of 200°F. and holding said heating for about 15 minutes followed by heating to 375°-400°F. for about 15 minutes; and (f) operating said apparatus to abrade said coating to essentially a zero clearance at said zones.