초록 ▼

The present invention relates to a system and a method for cooling extruded and molded materials. The present invention is especially useful to thoroughly cool an extrudate by directing a cooling fluid toward a surface of the extrudate (e.g., an interior surface that defines a hollow portion of an e

The present invention relates to a system and a method for cooling extruded and molded materials. The present invention is especially useful to thoroughly cool an extrudate by directing a cooling fluid toward a surface of the extrudate (e.g., an interior surface that defines a hollow portion of an extrudate). Hollows may be created in order to reduce material, weight, and/or processing time. A cooling fluid is diverted toward the surface of the extrudate so as to cool the material and assist in solidification. A baffle may serve to divert the cooling fluid in the desired direction. Increases in production line throughput may result by rapidly cooling the molded material. In addition, the more efficient cooling may be achieved with a lesser amount of the cooling fluid, and the velocity and temperature of the cooling fluid may be reduced. Other uses for the present invention include injection molding, compression molding, gas assist molding, and co-extrusion.

대표청구항 ▼

The present invention relates to a system and a method for cooling extruded and molded materials. The present invention is especially useful to thoroughly cool an extrudate by directing a cooling fluid toward a surface of the extrudate (e.g., an interior surface that defines a hollow portion of an e

The present invention relates to a system and a method for cooling extruded and molded materials. The present invention is especially useful to thoroughly cool an extrudate by directing a cooling fluid toward a surface of the extrudate (e.g., an interior surface that defines a hollow portion of an extrudate). Hollows may be created in order to reduce material, weight, and/or processing time. A cooling fluid is diverted toward the surface of the extrudate so as to cool the material and assist in solidification. A baffle may serve to divert the cooling fluid in the desired direction. Increases in production line throughput may result by rapidly cooling the molded material. In addition, the more efficient cooling may be achieved with a lesser amount of the cooling fluid, and the velocity and temperature of the cooling fluid may be reduced. Other uses for the present invention include injection molding, compression molding, gas assist molding, and co-extrusion. rformance of Closed Cycles with and without Heat Rejection at Cryogenic Temperatures; International Gas Turbine and Aeroengine Congress & Exhibition; Jun. 10-13, 1996; Birmingham, UK. Facchini, B. et al.; Semi-Closed Gas Turbine/Combined Cycle with Water Recovery and Extensive Exhaust Gas Recirculation; International Gas Turbine and Aeroengine Congress & Exhibition; Jun. 10-13, 1996; Birmingham, UK. Nakhamkin, M. et al.; The Cascaded Humidified Advanced Turbine (CHAT); Journal of Engineering for Gas Turbines and Power; Jul. 1996; pp. 565-571; vol. 118. RICE, I. G.; Split Stream Boilers for High-Temperature/High-Pressure Topping Steam Turbine Combined Cycles; Journal of Engineering for Gas Turbines and Power; Apr. 1997; pp. 385-394; vol. 119. Ulizar, I. et al.; A Semiclosed-Cycle Gas Turbine With Carbon Dioxide-Argon as Working Fluid; Journal of Engineering for Gas Turbines and Power; Jul. 1997; pp. 612-616; vol. 19. Wilson, D. G. et al.; The Design of High-Efficiency Turbomachinery and Gas Turbines, Second Editioin; 1998; pp. 146-161; Prentice Hall; Upper Saddle River, New Jersey. Bannister, R. L. et al.; Development of a Hydrogen-Fueled Combustion Turbine Cycle for Power Generation; Transactions of the ASME; Apr. 1998; pp. 276-283; vol. 120. Mathieu, P. et al.; Zero-Emission MATIANT Cycle; Transactions of the ASME; Jan. 1999; pp. 116-120; vol. 121. Norwegian Idea for CO2-Free Power Generation; Greenhouse Issues; Mar. 1999. Turkenburg, W. C. et al.; Fossil Fuels in a Sustainable Energy Supply: The Significance of CO2 Removal; A Memorandum at the Request of the Ministry of Economic Affairs the Hague; Jun. 1999; pp. 1-26; Utrecht. Bilger, R. W.; Zero Release Combustion Technologies and the Oxygen Economy; Fifth Int'l Conference on Technologies and Combustion for