Patent · US Expired

Heat pump device

US4409799A · kind A · utility

11Cited by
3References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 12, 1981
Grant dateOct 18, 1983
Priority date
Expiry dateNov 12, 2001

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF25B17/12
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

A heat pump device comprising a closed receptacle divided into a first chamber and a second chamber, means forming a hydrogen flow passage extending through the two chambers, said hydrogen flow passage permitting the flow of hydrogen but rejecting the flow of metal hydrides between the two chambers and being made at least partly of a porous material permeable to hydrogen and elastically deformable in response to an applied pressure, a first metal hydride filled in the first chamber and a second metal hydride filled in the second chamber.

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