A Space Cam Mechanism for Power Transmission of an Opposite-cylinder Piston Engine
College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha, Hunan, China
* Corresponding author: firstname.lastname@example.org
For the purpose of improving the engine’s power density, we put forward a new type of power transmission mechanism which is used for opposed-cylinder engine. The gas pressure acts on the cam through the piston and push rod, and the spindle rotation of external is driven by the cam. The design of spatial cam work surface is completed by using the enveloping theory of a family of space curves, the force between roller and cam is analyzed using dynamic analysis software. Under the condition of equal number, size and stroke of piston, the new one with larger power density is more compact in structure than the traditional power transmission mechanism, and the reaction force on either side of the main shaft and the acting force between pistons and cylinders are smaller than those in traditional one, which prolongs the service life of the pistons.
Key words: power transmission / space cam / supercharge / stress
© Owned by the authors, published by EDP Sciences, 2015
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