Demonstrating the performance and emission characteristics of a variable compression ratio, alvar-cycle engine

Olof Erlandsson; Gunnar Lundholm; Fredrik Söderberg; Bengt Johansson; Victor W. Wong

doi:10.4271/982682

Demonstrating the performance and emission characteristics of a variable compression ratio, alvar-cycle engine

Olof Erlandsson^*, Gunnar Lundholm, Fredrik Söderberg, Bengt Johansson, Victor W. Wong

^*Corresponding author for this work

Physical Sciences and Engineering

Research output: Contribution to conference › Paper › peer-review

4 Scopus citations

Abstract

This paper is a direct continuation of a previous study that addressed the performance and design of a variable compression engine, the Alvar-Cycle Engine [1]. The earlier study was presented at the SAE International Conference and Exposition in Detroit during February 23-26, 1998 as SAE paper 981027. In the present paper test results from a single cylinder prototype are reviewed and compared with a similar conventional engine. Efficiency and emissions are shown as function of speed, load, and compression ratio. The influence of residual gas on knock characteristics is shown. The potential for high power density through heavy supercharging is analyzed.

Original language	English (US)
DOIs	https://doi.org/10.4271/982682
State	Published - Dec 1 1998
Event	International Fall Fuels and Lubricants Meeting and Exposition - San Francisco, CA, United States Duration: Oct 19 1998 → Oct 22 1998

Other

Other	International Fall Fuels and Lubricants Meeting and Exposition
Country/Territory	United States
City	San Francisco, CA
Period	10/19/98 → 10/22/98

ASJC Scopus subject areas

Automotive Engineering
Safety, Risk, Reliability and Quality
Pollution
Industrial and Manufacturing Engineering

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abstract = "This paper is a direct continuation of a previous study that addressed the performance and design of a variable compression engine, the Alvar-Cycle Engine [1]. The earlier study was presented at the SAE International Conference and Exposition in Detroit during February 23-26, 1998 as SAE paper 981027. In the present paper test results from a single cylinder prototype are reviewed and compared with a similar conventional engine. Efficiency and emissions are shown as function of speed, load, and compression ratio. The influence of residual gas on knock characteristics is shown. The potential for high power density through heavy supercharging is analyzed.",

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T1 - Demonstrating the performance and emission characteristics of a variable compression ratio, alvar-cycle engine

AU - Erlandsson, Olof

AU - Lundholm, Gunnar

AU - Söderberg, Fredrik

AU - Johansson, Bengt

AU - Wong, Victor W.

PY - 1998/12/1

Y1 - 1998/12/1

N2 - This paper is a direct continuation of a previous study that addressed the performance and design of a variable compression engine, the Alvar-Cycle Engine [1]. The earlier study was presented at the SAE International Conference and Exposition in Detroit during February 23-26, 1998 as SAE paper 981027. In the present paper test results from a single cylinder prototype are reviewed and compared with a similar conventional engine. Efficiency and emissions are shown as function of speed, load, and compression ratio. The influence of residual gas on knock characteristics is shown. The potential for high power density through heavy supercharging is analyzed.

AB - This paper is a direct continuation of a previous study that addressed the performance and design of a variable compression engine, the Alvar-Cycle Engine [1]. The earlier study was presented at the SAE International Conference and Exposition in Detroit during February 23-26, 1998 as SAE paper 981027. In the present paper test results from a single cylinder prototype are reviewed and compared with a similar conventional engine. Efficiency and emissions are shown as function of speed, load, and compression ratio. The influence of residual gas on knock characteristics is shown. The potential for high power density through heavy supercharging is analyzed.

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M3 - Paper

T2 - International Fall Fuels and Lubricants Meeting and Exposition

Y2 - 19 October 1998 through 22 October 1998

ER -

Demonstrating the performance and emission characteristics of a variable compression ratio, alvar-cycle engine

Abstract

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