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US7454911B2 Expired / Lapsed US ⏱️ 0.0 years remaining

Energy recovery system in an engine

Assignee: Individual
•
Filing: 2005-11-04
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Granted: 2008-11-25
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Expires: 2025-11-04
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Abstract

Abstract Energy recovery system and method of using the same. The system is configured to capture the dissipated waste heat by an internal combustion engine and convert the same into electrical energy.

Inventors

  • 👤 Triantafyllos P. Tafas

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 06:32
CPC Classifications
F; F01; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/065; B; B60; B60L; B60L3/00; B60L3/0023; B60L50/00; B60L50/10; B60L50/16; F01K23/10; B60L2240/00; B60L2240/10; B60L2240/36; F01N; F01N5/00; F01N5/02; F01N5/04; F02; F02G; F02G2260/00; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/70; Y02T10/7072

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 181 words
An energy recovery system configured to propel a vehicle comprising: an engine comprising an engine block containing at least one combustion chamber; a coolant subsystem, said coolant subsystem comprising a network of coolant fluid conduits in thermal communication with said combustion chamber and containing coolant fluid, said coolant subsystem operatively configured to directly transfer heat from said combustion chamber via said coolant fluid; an exhaust subsystem, said exhaust subsystem comprising at least one conduit in communication with said combustion chamber and operatively configured to convey exhaust gases; a boiler in communication with said coolant subsystem, said boiler operatively configured to generate steam in cooperation with the coolant subsystem; an energy converter comprising a single two-chamber turbine having a first chamber connected to said exhaust subsystem operatively configured to transform energy of said exhaust gases into first mechanical energy and a second chamber connected to said boiler operatively configured to transform energy of said steam into second mechanical energy; and an electric generator in communication with said energy converter operatively configured to convert said first and second mechanical energies to electrical energy.
Claim 2
Dependent Claim 181 words
An energy recovery system configured to propel a vehicle comprising: an engine comprising an engine block containing at least one combustion chamber; a coolant subsystem, said coolant subsystem comprising a network of coolant fluid conduits in thermal communication with said combustion chamber and containing coolant fluid, said coolant subsystem operatively configured to directly transfer heat from said combustion chamber via said coolant fluid; an exhaust subsystem, said exhaust subsystem comprising at least one conduit in communication with said combustion chamber and operatively configured to convey exhaust gases; a boiler in communication with said coolant subsystem, said boiler operatively configured to generate steam in cooperation with the coolant subsystem; an energy converter comprising a single two-chamber turbine having a first chamber connected to said exhaust subsystem operatively configured to transform energy of said exhaust gases into first mechanical energy and a second chamber connected to said boiler operatively configured to transform energy of said steam into second mechanical energy; and an electric generator in communication with said energy converter operatively configured to convert said first and second mechanical energies to electrical energy.
Claim 3
Dependent Claim 37 words
The energy recovery system in accordance with claim 1 , wherein said single two-chamber turbine further comprises a rotatable shaft that spans both said first chamber and said second chamber, and is connected to said electric generator.
Claim 4
Dependent Claim 179 words
An energy recovery system configured to propel a vehicle comprising: an engine having a combustion chamber producing hot pressured exhaust gases and heat; an energy collection subsystem housing a liquid energy carrier medium, said energy collection subsystem operatively configured to allow heat directly transferred from of said combustion chamber to pass into said liquid energy carrier medium; a boiler connected to said energy collection subsystem operatively configured to convert said energy carrier medium from a liquid to a gaseous state; an energy converter, said energy converter comprising a single two-chamber turbine and operatively configured to communicate simultaneously with said chamber boiler and with said combustion exhaust subsystem, said energy converter having a shaft operatively configured to be rotated by said energy carrier medium in a gaseous state and to convert pressure energy from said exhaust gases in said combustion exhaust system and said energy carrier medium from a liquid to a gaseous state into mechanical power; and an electric generator attached to said energy converter operatively configured to convert the mechanical power of said energy converter to electrical power.
Claim 5
Dependent Claim 179 words
An energy recovery system configured to propel a vehicle comprising: an engine having a combustion chamber producing hot pressured exhaust gases and heat; an energy collection subsystem housing a liquid energy carrier medium, said energy collection subsystem operatively configured to allow heat directly transferred from of said combustion chamber to pass into said liquid energy carrier medium; a boiler connected to said energy collection subsystem operatively configured to convert said energy carrier medium from a liquid to a gaseous state; an energy converter, said energy converter comprising a single two-chamber turbine and operatively configured to communicate simultaneously with said chamber boiler and with said combustion exhaust subsystem, said energy converter having a shaft operatively configured to be rotated by said energy carrier medium in a gaseous state and to convert pressure energy from said exhaust gases in said combustion exhaust system and said energy carrier medium from a liquid to a gaseous state into mechanical power; and an electric generator attached to said energy converter operatively configured to convert the mechanical power of said energy converter to electrical power.
Claim 6
Dependent Claim 41 words
The energy recovery system in accordance with claim 3 , wherein said single two-chamber turbine comprises a first chamber for receiving exhaust gases from said exhaust subsystem and a second chamber for receiving said liquid energy carrier medium from said boiler.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2011-11-25 2012-05-26 2012-11-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2015-11-25 2016-05-26 2016-11-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2019-11-25 2020-05-26 2020-11-25 $7700.00 Window Closed / Lapsed

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