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A Closer Look at the Willans-Line
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English
Abstract
The Willans line represents the relationship between fuel energy input and engine output. Extrapolation to a zero line of fuel input provides a useful approximation of the mechanical losses. Linearity of these curves is assumed in the range from low load downward to a hypothetical zero value of the indicated work. A critical analysis revealed that these lines must have a continued curvature and also that the location of the zero point of indicated power does not coincide with zero fuel input. The paper suggests corrections and defines a directional field which may improve the accuracy of the loss analysis.
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Authors
Citation
Pachernegg, S., "A Closer Look at the Willans-Line," SAE Technical Paper 690182, 1969, https://doi.org/10.4271/690182.Also In
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