| 摘要 |
An internal combustion engine comprises a piston having first and second coaxial parts movable axially relative to each other in the direction of reciprocation of the piston and having a chamber therebetween which varies in volume with the relative movement. A conduit for fluid connects the chamber to a lubricant opening on a crank pin of a crankshaft. An inlet rotary valve between the lubricant opening and the chamber permits a flow of pressurized lubricant from the opening to the chamber at a first rotational position of the crankshaft and seals the chamber from the opening at other rotational positions of the crankshaft.
|
