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The Free Running Comprex ®
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English
Abstract
The Comprex(R) is a pressure-wave supercharger (PWS) for passenger car diesel engines. It has many features which ideally suit it for the continually increasing demands on driveability, fuel economy and reduction of exhaust pollutants. To counter the disadvantages of the previously required belt drive, a free-running machine was developed. It is self driven by the kinetic energy of the exhaust gas; made possible by employing a rotor having reduced inertia. In addition to the well known Comprex features, this advanced development offers advantages such as rapid response, high efficiency, compactness and freedom in placement. The paper discusses the design of the free-running PWS, its construction, supercharging characteristics and preliminary experience.
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Citation
Zehnder, G., Mayer, A., and Matthews, L., "The Free Running Comprex®," SAE Technical Paper 890452, 1989, https://doi.org/10.4271/890452.Also In
References
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- Jenny E. et. al. (ABB) The Comprex Pressure Wave Supercharger Brown Boveri Review August 1987
- Mayer A. Pauli E. (ABB) Emissions concept for vehicle diesel engine supercharged with Comprex SAE Paper 880008
- Gyarmathy G. How does the Comprex Pressure-Wave Supercharger work? SAE Paper 830234
- Seippel C. (ABB) Druckaustauscher (Pressure-Exchanger) Swiss Patent 225426 Dec 7 1940
- Mayer A. et al (ABB & NGK) Extruded ceramic Comprex Rotor SAE 89…. Detroit
- Hiereth H. (Daimler-Benz) Car tests with a free-running PWS SAE 89…. Detroit
- Spinnler F. Jaussi F.A. (ABB) The fully self-regulated pressure-wave supercharger Comprex for passenger car diesel engines I.Mech.E. London