Lubrication Pump Made of Rapidly Solidified Aluminum Alloy for High Performance Engine

Paper #:
  • 960281

Published:
  • 1996-02-01
Citation:
Kondoh, K., Kosuge, T., and Takeda, Y., "Lubrication Pump Made of Rapidly Solidified Aluminum Alloy for High Performance Engine," SAE Technical Paper 960281, 1996, https://doi.org/10.4271/960281.
Pages:
10
Abstract:
An internal gear-type pump has advantages compared with an external involute gear-type pump, for example, higher mechanical or volumetric efficiency, considerable reduction of weight and dimension in the oil-pump system[1]. This paper presents characteristics of the internal gear type rotors with a modified trochoidal profile in the oil-pump system, and new P/M(Powder Metallurgy) aluminum alloys which satisfy required wear properties as the lubrication oil-pump rotors. Also, the advantage of high volumetric efficiency and discharge performance and excellent properties of the oil-pump rotor with a modified trochoid profile were combined with a R/S (Rapidly Solidified) aluminum alloy in the scavenging pump for racing car engine. Good results without wear or damage after an actual race are also reported.
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