US8302399B1
Active / In Force
US
⏱️ 4.5 years remaining
Organic rankine cycle systems using waste heat from charge air cooling
Assignee: AI Alpine US Bidco Inc
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Filing: 2011-05-13
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Granted: 2012-11-06
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Expires: 2031-05-13
Abstract
Abstract The present application and the resultant patent provide a waste heat recovery system for recovering heat from a number of turbocharger stages. The waste heat recovery system may include a simple organic rankine cycle system and a number of charge air coolers in communication with the turbocharger stages and the simple organic rankine cycle system. The charge air coolers are positioned in a number of parallel branches of the simple organic rankine cycle system.
Inventors
- 👤 Sebastian W. Freund
- 👤 Gabor Ast
- 👤 Pierre Huck
- 👤 Sara Rocci Denis
- 👤 Monika Muehlbauer
- 👤 Albert Scharl
- 👤 Wolfgang Madl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:21
CPC Classifications
F; F01; F01N; F01N5/00; F01N5/02; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/065; F01K25/00; F01K25/08; F02; F02B; F02B29/00; F02B29/04; F02B29/0406; F02B29/0412; F02B29/0437; F02B29/0443; F02B33/00; F02B33/44; F02G; F02G5/00; F02B37/00; F02B37/013; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
65 words
A waste heat recovery system for recovering heat from a number of turbocharger stages, comprising: a simple organic rankine cycle system; and a plurality of charge air coolers in communication with the number of turbocharger stages and the simple organic rankine cycle system; wherein the plurality of charge air coolers is positioned in a plurality of parallel branches of the simple organic rankine cycle system.
Claim 2
Dependent Claim
65 words
A waste heat recovery system for recovering heat from a number of turbocharger stages, comprising: a simple organic rankine cycle system; and a plurality of charge air coolers in communication with the number of turbocharger stages and the simple organic rankine cycle system; wherein the plurality of charge air coolers is positioned in a plurality of parallel branches of the simple organic rankine cycle system.
Claim 3
Dependent Claim
33 words
The waste heat recover system of claim 1 , wherein the simple organic rankine cycle system comprises a working fluid therein and wherein the plurality of charge air coolers preheat the working fluid.
Claim 4
Dependent Claim
29 words
The waste heat recovery system of claim 1 , wherein the simple organic rankine cycle system comprises an exhaust gas heat exchanger in communication with a first heat source.
Claim 5
Dependent Claim
29 words
The waste heat recovery system of claim 1 , wherein the simple organic rankine cycle system comprises an exhaust gas recirculation cooler in communication with a first heat source.
Claim 6
Dependent Claim
24 words
The waste heat recovery system of claim 1 , wherein the simple organic rankine cycle system comprises an expander, a condenser, and a pump.
Claim 7
Dependent Claim
42 words
The waste heat recovery system of claim 1 , wherein the plurality of charge air coolers comprises a first charge air cooler in communication with a first turbocharger stage and a second charge air cooler in communication with a second turbocharger stage.
Claim 8
Dependent Claim
19 words
The waste heat recovery system of claim 1 , wherein the simple organic rankine cycle system comprises a recuperator.
Claim 9
Dependent Claim
20 words
The waste heat recovery system of claim 7 , wherein the recuperator is positioned in the plurality of parallel branches.
Claim 10
Dependent Claim
29 words
The waste heat recovery system of claim 1 , wherein the simple organic rankine cycle system comprises an exhaust gas heat exchanger positioned in the plurality of parallel branches.
Claim 11
Dependent Claim
29 words
The waste heat recovery system of claim 1 , wherein the simple organic rankine cycle system comprises an exhaust gas recirculation cooler positioned in the plurality of parallel branches.
Claim 12
Independent Claim
71 words
A method of recovering waste heat from a number of turbocharger stages, comprising: positioning a number of charge air coolers in communication with the number of turbocharger stages; positioning the number of charge air coolers in a plurality of parallel branches of a simple organic rankine cycle system; circulating a working fluid in the simple organic rankine cycle system; and preheating the working fluid in the number of charge air coolers.
Claim 13
Independent Claim
71 words
A method of recovering waste heat from a number of turbocharger stages, comprising: positioning a number of charge air coolers in communication with the number of turbocharger stages; positioning the number of charge air coolers in a plurality of parallel branches of a simple organic rankine cycle system; circulating a working fluid in the simple organic rankine cycle system; and preheating the working fluid in the number of charge air coolers.
Claim 14
Dependent Claim
25 words
The method of claim 11 , further comprising the step of positioning a first heat source in communication with the simple organic rankine cycle system.
Claim 15
Dependent Claim
27 words
The method of claim 11 , further comprising the step of positioning a recuperator in the plurality of parallel branches of the simple organic rankine cycle system.
Claim 16
Dependent Claim
30 words
The method of claim 11 , further comprising the step of positioning an exhaust gas heat exchanger in the plurality of parallel branches of the simple organic rankine cycle system.
Claim 17
Dependent Claim
30 words
The method of claim 11 , further comprising the step of positioning an exhaust gas recirculation cooler in the plurality of parallel branches of the simple organic rankine cycle system.
Claim 18
Dependent Claim
88 words
A waste heat recovery system for recovering heat from a first and a second stage of a turbocharger, comprising: a simple organic rankine cycle system; a first charge air cooler in communication with the first turbocharger stage and the simple organic rankine cycle system; and a second charge air cooler in communication with the second turbocharger stage and the simple organic rankine cycle system; wherein the first charge air cooler and the second charge air cooler are positioned in parallel branches of the simple organic rankine cycle system.
Claim 19
Dependent Claim
88 words
A waste heat recovery system for recovering heat from a first and a second stage of a turbocharger, comprising: a simple organic rankine cycle system; a first charge air cooler in communication with the first turbocharger stage and the simple organic rankine cycle system; and a second charge air cooler in communication with the second turbocharger stage and the simple organic rankine cycle system; wherein the first charge air cooler and the second charge air cooler are positioned in parallel branches of the simple organic rankine cycle system.
Claim 20
Dependent Claim
24 words
The waste heat recovery system of claim 16 , further comprising a first heat source in communication with the simple organic rankine cycle system.
Claim 21
Dependent Claim
24 words
The waste heat recovery system of claim 16 , wherein the simple organic rankine cycle system comprises a recuperator positioned in the parallel branches.
Claim 22
Dependent Claim
27 words
The waste heat recovery system of claim 16 , wherein the simple organic rankine cycle system comprises an exhaust gas heat exchanger positioned in the parallel branches.
Claim 23
Dependent Claim
27 words
The waste heat recovery system of claim 16 , wherein the simple organic rankine cycle system comprises an exhaust gas heat exchanger positioned in the parallel branches.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2015-11-06 | 2016-05-07 | 2016-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2019-11-06 | 2020-05-07 | 2020-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2023-11-06 | 2024-05-07 | 2024-11-06 | $7700.00 | Window Closed / Lapsed |