[quote:53f7fdbaa0="Anonymous"][quote:53f7fdbaa0="boss"]please show me the diagram of the refrigrator and heat engine and there differences[/quote:53f7fdbaa0] :idea: i'am sorry but what are you talking about because iam looking for pulleys. :lol:[/quote:53f7fdbaa0][i:53f7fdbaa0] 8) :lol: [/i:53f7fdbaa0] :?