Patent · US Expired

Unidirectional heat pipe

US4683940A · kind A · utility

9Cited by
9References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 16, 1986
Grant dateAug 4, 1987
Priority date
Expiry dateJul 16, 2006

Classification

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

Abstract

A heat pipe with limited heat transfer capabilities in one direction. The heat pipe, which transfers heat in one direction in normal fashion, also transfers heat in the reverse direction, but only up to a prescribed point, beyond which the reverse heat flow cuts off. It operates because of the use of a limited liquid filling and at least one artery which is closed at the normal evaporator end and open ended at the normal condenser end.

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