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Variable compression ratio

Variable compression ratio (VCR) is a technology to adjust the compression ratio of an internal combustion engine while the engine is in operation. This is done to increase fuel efficiency while under varying loads. Variable compression engines allow the volume above the piston at top dead centre to be changed. Higher loads require lower ratios to…

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Production

Two-stroke engines

Engine designs

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Variable compression ratio

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Avg. degree1.95
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Components1

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engine compression fuel variable ratio engines saab vcr crankshaft cylinder piston power svc efficiency lower production infiniti hydraulic pressure air

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