Patent · US Expired

Ion drag pumped heat pipe

US4220195A · kind A · utility

15Cited by
2References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 24, 1979
Grant dateSep 2, 1980
Priority date
Expiry dateMay 24, 1999

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF28D15/04
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

Conventional heat pipe performance can be improved by reducing the dependency upon the capillary pumping limitation. Electrodes mounted either in the working fluid vapor or its condensate produce an ion flow directed axially and in the same flow direction. The ion flow, through collision phenomena, picks-up the surrounding low velocity stream, increases its momentum and generates additional pumping pressure for the condensate. Performance can be improved even when low surface tension working fluids are used.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.