Abstract: A vacuum recycling apparatus for refining solar grade polysilicon is provided which contains a vacuum degassing (VD) device and a vacuum recycling (RH) device. By storing liquid silicon in a bucket in the VD device, controlling the pressure inside the VD and RH devices, and introducing inert gas into the apparatus, the liquid silicon is stirred for the removal of impurities. With the present invention, solar grade polysilicon can be directly produced with a specified purity, significantly reducing the production time and cost.

Abstract: This invention is concerning a type of oil-economizing system of power apparatus for engines where the desired 30% oil gas is supplied by the source oil tank, wherein an oil gas chamber connected to oil tank with a heating element erected at the lower portion in its interior can heat and turn the highly volatile fuel into a more stable oil gas, the oil gas then is carried over to a gas conditioning compartment for air mixing to become a leaner oil gas in order to supply the 70% oil gas and mingle with the oil gas given from source oil supply system and deliver the oil gas in full required for the combustible explosion in engine; it not only enhances the efficiency of combustible explosion for engine with more than 60% oil saving efficacy achievable, but it also produces no air pollution due to its 100% combustion so that the objective of environmental protection is accomplishable.