Patent · US Expired

Long-period thermal storage accumulators

US4174009A · kind A · utility

10Cited by
2References
19Claims
0Family size

Inventors

Key dates

Filing dateDec 15, 1977
Grant dateNov 13, 1979
Priority date
Expiry dateDec 15, 1997

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E60/14
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A long-period storage accumulator for storing heat water is used as a storing medium. The water is enclosed in large thin-walled containers which are arranged under the ground. The water pressure forces acting on the container walls are carried by the surrounding of the container.

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