초록 ▼

A coating for a portion of the flowpath of a diffuser of a centrifugal compressor. The coating covers a portion of the diffuser against which flows high velocity air from the compressor blades. The coating is a smooth, tenacious, heat-resistant powder paint that reduces the aerodynamic drag of the d

A coating for a portion of the flowpath of a diffuser of a centrifugal compressor. The coating covers a portion of the diffuser against which flows high velocity air from the compressor blades. The coating is a smooth, tenacious, heat-resistant powder paint that reduces the aerodynamic drag of the diffuser walls on the high velocity air thus increasing the efficiency of the compressor.

대표청구항 ▼

[ What is claimed is:] [1.]1. An apparatus comprising:an internal combustion engine accepting compressed intake air and producing exhaust gas;a turbocharger including a turbine and a centrifugal compressor with blades, said turbine being powered by the exhaust gas, said turbine powering said centrif

[ What is claimed is:] [1.]1. An apparatus comprising:an internal combustion engine accepting compressed intake air and producing exhaust gas;a turbocharger including a turbine and a centrifugal compressor with blades, said turbine being powered by the exhaust gas, said turbine powering said centrifugal compressor, said centrifugal compressor providing compressed intake air to said engine, said turbocharger including a wall defining a flowpath for slowing the air exiting from said blades of said centrifugal compressor, said wall having an as-cast surface from being sand cast; anda coating of heat resistant powder paint on a portion of said wall, said coating providing a smooth surface to reduce the aerodynamic drag of the air flowing over said wall.