Patent · US Expired

Internal energy engine (IEE)

US4955196A · kind A · utility

21Cited by
4References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 11, 1989
Grant dateSep 11, 1990
Priority date
Expiry dateOct 11, 2009

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF03G7/0641
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

The invention internal energy engine is a power machine that makes use of the shape memory effect of shape memory alloy members. The member can be made from a Ni-Ti alloy, for example. It generates great force on a movable part when its transformation is constrained while undergoing temperature changes. The generated high pressure or high speed fluid working medium stream can be used for many practical functions, such as to drive a generator. An important advantage is using waste heat as the energy source. Thus using no fuel and creating no pollution.

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