http://www.freshpatents.com/Power-plants-dtnewntc060.php USPTO Class 060 - Power plants en-us Fri, 20 Jun 2008 11:42:20 -0700 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/Fluid-connected-heat-to-motion-converter-dt20080612ptan20080134662.php Fri, 20 Jun 2008 11:42:20 -0700 My invention relates to heat engines. It has the following objectives: 1) Efficient conversion of any source of heat into useful mechanical power. 2) A novel proportional control valve system based on rotary refrigerant valves controlled by a programmable logic controller (PLC). This proportional valve system allows rapid response to...