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Abstract

A secondary air pump (SAP) is an air compressor that supplies air to the exhaust system of an automotive engine for the emission control of the engine. The SAP system has been offered as an emission control device in later versions of cars, starting in the mid-1990s. Various types of rotary and positive displacement air pumps have been tested and used for SAP application. The regenerative flow compressor/pump (RFC or RFP) and the centrifugal compressor have been found to be best suited for SAP application. This paper discusses the performance of an RFC for SAP application and shows the RFC to be the best choice for satisfying the required specifications of the SAP.

Computational fluid dynamics analysis of the RFC for an SAP application was carried out to study its performance in detail.

Keywords

secondary air pump regenerative flow compressor low specific speed

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A regenerative flow compressor as a secondary air pump for engine emission control

Abstract

Keywords

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References