Patent · US Expired

Apparatus for heat transformation

US4372127A · kind A · utility

3Cited by
2References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 10, 1980
Grant dateFeb 8, 1983
Priority date
Expiry dateNov 10, 2000

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF25B9/14
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

A heat transformation device which is compact and effective for recovering waste heat from one or more sources which sources may have different temperatures, comprises a closed cylinder containing a working piston made of heat conducting material and at least one impact piston which is constructed to act as a recuperator. Electromagnetic means are provided to suddenly move the impact piston when it absorbs heat from an end of the cylinder into contact with the working piston. The cylinder is filled with a low molecular weight, low density gas which has high specific heat and is preferably compressed.

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