US PATENT SUBCLASS 60 / 647
.~.~ Including operating at or above critical pressure


Current as of: June, 1999
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60 /   HD   POWER PLANTS

643  DF  MOTIVE FLUID ENERGIZED BY EXTERNALLY APPLIED HEAT {11}
645  DF  .~ Process of power production or system operation {9}
647.~.~ Including operating at or above critical pressure


DEFINITION

Classification: 60/647

(under subclass 645) Process, in which motive fluid in the course of power production reaches a pressure at or above that at which its vapor and liquid have the same density (i.e., critical pressure).