US7040303B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined aftercooler system with shared fans
Assignee: Progress Rail Locomotive Inc
•
Filing: 2004-08-20
•
Granted: 2006-05-09
•
Expires: 2024-08-20
Abstract
Abstract A cooling system including an intake air cooling subsystem and a liquid cooling subsystem for controlling intake air temperatures in a supercharged internal combustion diesel locomotive engine. The intake air cooling subsystem includes an air-to-water aftercooler and an air-to-air aftercooler having intake air sides connected to receive intake air flow in series between a supercharger and an engine. The liquid cooling subsystem includes at least one liquid cooling loop having a pump, a radiator and a water coolant side of the air-to-water aftercooler. At least one shared fan circulates air flow to the cooling air sides of the air-to-air aftercooler and the radiator. An optional air distribution control selectively directs circulated air flow between the air-to-air aftercooler, the radiator and other optional components of the cooling system.
Inventors
- 👤 Teoman Uzkan
- 👤 Edward J. Cryer, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:30
CPC Classifications
F; F01; F01P; F01P7/00; F01P7/14; F01P7/16; F01P7/165; F02; F02B; F02B29/00; F02B29/04; F02B29/0406; F02B29/0412; F02B29/0425; F02B29/0431; F02B29/0437; F02B29/0443; F01P11/00; F01P11/02; F01P11/029; F01P5/00; F01P5/10; F01P2005/105; F01P2060/00; F01P2060/02; F01P2060/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
179 words
A cooling system for an internal combustion engine having a supercharger for increasing the density of intake air supplied to the engine, the cooling system comprising: a liquid cooling subsystem including at least one liquid cooling loop having a pump communicating with a radiator and the engine for unidirectional circulation of liquid coolant; an intake air cooling subsystem including an air-to-water aftercooler having an intake air side receiving intake air from the supercharger and a water side receiving liquid coolant from the liquid cooling subsystem, and an air-to-air aftercooler having an intake air side receiving intake air from the air-to-water aftercooler; a shared fan circulating air flow through cooling air sides of the air-to-air aftercooler and the radiator; an air distribution control operative to control the amount of circulated air flow directed from the shared fan to the cooling air sides of the radiator and the air-to-air aftercooler; the air-to-water aftercooler being operative to exchange heat between the intake air and liquid coolant; and the air-to-air aftercooler being operative to exchange heat between the intake air and circulated air.
Claim 2
Dependent Claim
179 words
A cooling system for an internal combustion engine having a supercharger for increasing the density of intake air supplied to the engine, the cooling system comprising: a liquid cooling subsystem including at least one liquid cooling loop having a pump communicating with a radiator and the engine for unidirectional circulation of liquid coolant; an intake air cooling subsystem including an air-to-water aftercooler having an intake air side receiving intake air from the supercharger and a water side receiving liquid coolant from the liquid cooling subsystem, and an air-to-air aftercooler having an intake air side receiving intake air from the air-to-water aftercooler; a shared fan circulating air flow through cooling air sides of the air-to-air aftercooler and the radiator; an air distribution control operative to control the amount of circulated air flow directed from the shared fan to the cooling air sides of the radiator and the air-to-air aftercooler; the air-to-water aftercooler being operative to exchange heat between the intake air and liquid coolant; and the air-to-air aftercooler being operative to exchange heat between the intake air and circulated air.
Claim 3
Dependent Claim
34 words
An intake air cooling system as in claim 1 wherein the cooling air sides of the radiator and the air-to-air aftercooler are positioned in series to receive circulated air flow from the shared fan.
Claim 4
Dependent Claim
34 words
An intake air cooling system as in claim 1 wherein the cooling air sides of the radiator and the air-to-air aftercooler are positioned in parallel to receive circulated air flow from the shared fan.
Claim 5
Dependent Claim
34 words
An intake air cooling system as in claim 1 including an oil cooler connected to the cooling loop to receive unidirectional liquid coolant flow and operative to transfer lubrication oil heat to liquid coolant.
Claim 6
Dependent Claim
35 words
An intake air cooling system as in claim 1 including a liquid coolant reservoir operative to contain reserve liquid coolant and connected to the cooling loop to provide reserve coolant to the liquid cooling loop.
Claim 7
Dependent Claim
38 words
An intake air cooling system as in claim 1 including a dynamic braking grid positioned in parallel with the cooling air sides of the air-to-air aftercooler and the radiator to receive circulated air flow from the shared fan.
Claim 8
Dependent Claim
44 words
An intake air cooling system as in claim 6 wherein the air distribution control is operative to control the amount of circulated air flow directed from the shared fan to cooling air sides of the radiator, the dynamic brake grid and the air-to-air aftercooler.
Claim 9
Dependent Claim
177 words
An intake air cooling system for internal combustion engine having a supercharger for increasing the density of intake air supplied to the engine, the cooling system comprising: a liquid cooling subsystem including at least one liquid cooling loop having an aftercooler pump communicating with a radiator for unidirectional circulation of liquid coolant; an intake air subsystem including an air-to-water aftercooler having an intake air side receiving intake air from the supercharger and a water side receiving liquid coolant from the liquid cooling subsystem, and an air-to-air aftercooler having an intake air side receiving intake air from the air-to-water aftercooler; and a shared fan circulating air flow through cooling air sides of the air-to-air aftercooler and the radiator; an air distribution control operative to control the amount of circulated air flow directed from the shared fan to the cooling air sides of the air-to-air aftercooler and the radiator; the air-to-water aftercooler being operative to exchange heat between the intake air and liquid coolant; the air-to-air aftercooler being operative to exchange heat between the intake air and circulated air.
Claim 10
Dependent Claim
177 words
An intake air cooling system for internal combustion engine having a supercharger for increasing the density of intake air supplied to the engine, the cooling system comprising: a liquid cooling subsystem including at least one liquid cooling loop having an aftercooler pump communicating with a radiator for unidirectional circulation of liquid coolant; an intake air subsystem including an air-to-water aftercooler having an intake air side receiving intake air from the supercharger and a water side receiving liquid coolant from the liquid cooling subsystem, and an air-to-air aftercooler having an intake air side receiving intake air from the air-to-water aftercooler; and a shared fan circulating air flow through cooling air sides of the air-to-air aftercooler and the radiator; an air distribution control operative to control the amount of circulated air flow directed from the shared fan to the cooling air sides of the air-to-air aftercooler and the radiator; the air-to-water aftercooler being operative to exchange heat between the intake air and liquid coolant; the air-to-air aftercooler being operative to exchange heat between the intake air and circulated air.
Claim 11
Dependent Claim
35 words
An intake air cooling system as in claim 8 including a radiator bypass passage regulated by a thermostat operative to selectively bypass liquid coolant flow to the radiator to maintain an optimal liquid coolant temperature.
Claim 12
Dependent Claim
34 words
An intake air cooling system as in claim 8 wherein the cooling air sides of the air-to-air aftercooler and the radiator are positioned in series to receive circulated air flow from the shared fan.
Claim 13
Dependent Claim
34 words
An intake air cooling system as in claim 8 wherein the cooling air sides of the air-to-air aftercooler and the radiator are positioned in parallel to receive circulated air flow from the shared fan.
Claim 14
Dependent Claim
178 words
A cooling system for an internal combustion engine having a supercharger for increasing the density of intake air supplied to the engine, the cooling system comprising: a liquid cooling subsystem including at least one liquid cooling loop having a pump communicating with a radiator and the engine for unidirectional circulation of liquid coolant; an intake air cooling subsystem including an air-to-water aftercooler having an intake air side receiving intake air from the supercharger and a water side receiving liquid coolant from the liquid cooling subsystem, and an air-to-air aftercooler having an intake air side receiving intake air from the air-to-water aftercooler; a shared fan circulating air flow through cooling air sides of the air-to-air aftercooler and the radiator; a dynamic brake grid positioned in parallel with the cooling air sides of the air-to air aftercooler and the radiator to receive circulated air flow from the shared fan; the air-to-water aftercooler being operative to exchange heat between the intake air and liquid coolant; and the air-to-air aftercooler being operative to exchange heat between the intake air and circulated air.
Claim 15
Dependent Claim
178 words
A cooling system for an internal combustion engine having a supercharger for increasing the density of intake air supplied to the engine, the cooling system comprising: a liquid cooling subsystem including at least one liquid cooling loop having a pump communicating with a radiator and the engine for unidirectional circulation of liquid coolant; an intake air cooling subsystem including an air-to-water aftercooler having an intake air side receiving intake air from the supercharger and a water side receiving liquid coolant from the liquid cooling subsystem, and an air-to-air aftercooler having an intake air side receiving intake air from the air-to-water aftercooler; a shared fan circulating air flow through cooling air sides of the air-to-air aftercooler and the radiator; a dynamic brake grid positioned in parallel with the cooling air sides of the air-to air aftercooler and the radiator to receive circulated air flow from the shared fan; the air-to-water aftercooler being operative to exchange heat between the intake air and liquid coolant; and the air-to-air aftercooler being operative to exchange heat between the intake air and circulated air.
Claim 16
Dependent Claim
43 words
An intake air cooling system as in claim 12 including an air distribution control operative to control the amount of circulated air flow direct from the shared fan to cooling air sides of the radiator, the dynamic brake grid and the air-to-air aftercooler.
Claim 17
Dependent Claim
230 words
A cooling system for an internal combustion engine having a supercharger for increasing the density of intake air supplied to the engine, the cooling system comprising: a liquid cooling subsystem including a first liquid cooling loop comprising a main pump communicating with a main radiator and the engine for unidirectional circulation of liquid coolant, and a second liquid cooling loop comprising an afterccoler pump communicating with an aftercooler radiator for unidirectional circulation of liquid coolant; a valve apparatus linking the first and second cooling loops and operative to control liquid coolant flow between the cooling loops; an intake air cooling subsystem including an air-to-water aftercooler having an intake air side receiving intake air from the supercharger and a water side receiving liquid coolant from the second cooling loop, and an air-to-air aftercooler having an intake air side receiving intake air from the air-to-water aftercooler; a shared fan circulating air flow through cooling air sides of the air-to-air radiator, the aftercooler radiator, and the main radiator; an air distribution control operative to control the amount of circulated air flow directed from the shared fan to the cooling air sides of the air-to-air radiator, the aftercooler radiator, and the main radiator; the air-to-water aftercooler being operative to exchange heat between the intake air and liquid coolant; and the air-to-air aftercooler being operative to exchange heat between the intake air and circulated air.
Claim 18
Dependent Claim
230 words
A cooling system for an internal combustion engine having a supercharger for increasing the density of intake air supplied to the engine, the cooling system comprising: a liquid cooling subsystem including a first liquid cooling loop comprising a main pump communicating with a main radiator and the engine for unidirectional circulation of liquid coolant, and a second liquid cooling loop comprising an afterccoler pump communicating with an aftercooler radiator for unidirectional circulation of liquid coolant; a valve apparatus linking the first and second cooling loops and operative to control liquid coolant flow between the cooling loops; an intake air cooling subsystem including an air-to-water aftercooler having an intake air side receiving intake air from the supercharger and a water side receiving liquid coolant from the second cooling loop, and an air-to-air aftercooler having an intake air side receiving intake air from the air-to-water aftercooler; a shared fan circulating air flow through cooling air sides of the air-to-air radiator, the aftercooler radiator, and the main radiator; an air distribution control operative to control the amount of circulated air flow directed from the shared fan to the cooling air sides of the air-to-air radiator, the aftercooler radiator, and the main radiator; the air-to-water aftercooler being operative to exchange heat between the intake air and liquid coolant; and the air-to-air aftercooler being operative to exchange heat between the intake air and circulated air.
Claim 19
Dependent Claim
213 words
A cooling system for an internal combustion engine having a supercharger for increasing the density of intake air supplied to the engine, the cooling system comprising: a liquid cooling subsystem including a first liquid cooling loop having a pump communicating with the engine and a main radiator and the engine for unidirectional circulation of liquid coolant, and a second liquid cooling loop including the pump, the engine, the main radiator, a supplemental low temperature radiator and a water cooling side of an air-to water aftercooler for unidirectional circulation of liquid coolant; an intake air cooling subsystem including an air-to-water aftercooler having an intake air side receiving intake air from the supercharger, and an air-to-air aftercooler having an intake air side receiving intake air from the air-to-water aftercooler; a shared fan circulating air flow through cooling air sides of the air-to-air radiator, the aftercooler radiator, and the main radiator; an air distribution control operative to control the amount of circulated air flow directed from the shared fan to the cooling air sides of the air-to-air radiator, the aftercooler radiator, and the main radiator; the air-to-water aftercooler being operative to exchange heat between the intake air and liquid coolant; and the air-to-air aftercooler being operative to exchange heat between the intake air and circulated air.
Claim 20
Dependent Claim
213 words
A cooling system for an internal combustion engine having a supercharger for increasing the density of intake air supplied to the engine, the cooling system comprising: a liquid cooling subsystem including a first liquid cooling loop having a pump communicating with the engine and a main radiator and the engine for unidirectional circulation of liquid coolant, and a second liquid cooling loop including the pump, the engine, the main radiator, a supplemental low temperature radiator and a water cooling side of an air-to water aftercooler for unidirectional circulation of liquid coolant; an intake air cooling subsystem including an air-to-water aftercooler having an intake air side receiving intake air from the supercharger, and an air-to-air aftercooler having an intake air side receiving intake air from the air-to-water aftercooler; a shared fan circulating air flow through cooling air sides of the air-to-air radiator, the aftercooler radiator, and the main radiator; an air distribution control operative to control the amount of circulated air flow directed from the shared fan to the cooling air sides of the air-to-air radiator, the aftercooler radiator, and the main radiator; the air-to-water aftercooler being operative to exchange heat between the intake air and liquid coolant; and the air-to-air aftercooler being operative to exchange heat between the intake air and circulated air.
References Cited (Backward Citations)
US4236492A
Cited
US4317439A
Cited
US5809981A
Cited
US6510690B2
Cited
US6604515B2
Cited
US6883314B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-05-08 | 2009-11-07 | 2010-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-05-08 | 2013-11-07 | 2014-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-05-08 | 2017-11-07 | 2018-05-09 | $7700.00 | Window Closed / Lapsed |