Exploiting internally generated heat in heat engines
AssigneeExency Ltd.
InventorNitzan ELIYAHU
Life of this patent
Estimating the term…
Abstract
An improved heat engine employing a dual-component working fluid and configured to generate internal heat from one component of the working fluid that heats the other component through the physical contact between them such that together with the addition of external heat, the engine advantageously yields enhanced work extraction efficiency through separate, parallel expansion of each of the working fluids.
Claims27
A method of exploiting condensation heat in a heat engine, the method comprising:
- pressurizing a liquid working fluid;
- vaporizing the liquid working fluid into a vapor working fluid;
- splitting the vapor working fluid into a first vapor working stream and a second vapor working stream;
- partially expanding the first vapor working fluid stream after the splitting;
- expanding the second vapor working stream in a stream parallel to the first vapor working fluid after the splitting;
- condensing the expanded second vapor working stream so as to form a condensate;
- pressurizing the condensate into a pressurized condensate;
- and
- isobarically contacting the pressurized condensate with the partially expanded first vapor working stream so as to form the liquid working fluid.
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A heat engine exploiting condensation heat of working fluid, the engine comprising:
- a first pump operative to pressurize a liquid working fluid;
- a heater operative to vaporize the liquid working fluid into a vapor working fluid;
- a stream splitter operative to split the vapor working fluid into a first vapor working stream and a second vapor working stream;
- a first expander operative to partially expand the first vapor working stream;
- a second expander operative to expand the second vapor working stream in a stream parallel to the first vapor working stream;
- an isobaric condenser operative to condense the expanded second vapor working stream so as to form a condensate;
- a second pump operative to pressurize the condensate into a pressurized condensate;
- and
- an isobaric condenser combiner operative to contact the pressurized condensate with the partially expanded first vapor working fluid so as to form the liquid working fluid.
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A heat engine having two-component working fluid, the heat engine comprising:
- a sleeve of shape-memory material;
- a heat block enclosing at least one end of the sleeve;
- and
- a pressurized gas sealed within the sleeve and the heat block such that a combination of low-temperature heat generated from sleeve stretching and high-temperature heat captured by the heat block initiates contraction of the sleeve and heat released from sleeve contraction into the gas drives gas expansion so as to generate a linear reciprocity.
Dependencies are inferred from the claim text.