| 摘要 |
A method for operating an internal combustion engine including a combustion chamber and configured to perform at least a compression stroke and a power stroke. The method comprises direct injecting a first substance having a positive Joule-Thompson coefficient into the combustion chamber during a compression stroke, thereby reducing an amount of work otherwise may be used to perform the compression stroke and direct injecting a second substance having a negative Joule-Thompson coefficient into the combustion chamber during a power stroke, thereby increasing an amount of work otherwise produced from the power stroke. |
