Patent US4995447A successfully refreshed from Google Patents.
US4995447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air ducting system for cooling air in the front end of a motor vehicle
Assignee: Daimler Benz AG
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Filing: 1990-05-17
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Granted: 1991-02-26
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Expires: 2010-05-17
Abstract
Abstract In an air ducting system for cooling air in an air duct in the front end of a motor vehicle, which is positioned with the air outlet at the underside of the front end in front of a capsule surrounding the engine compartment of the motor vehicle, a plurality of aerodynamically shaped hollow guide vanes internally traversed by a cooling medium which divide the air duct into a plurality of subducts is arranged as far as the air outlet opening at the underside of the front end in order to improve the airflow in the air duct and to cool the cooling medium.
Inventors
- 👤 Werner Weidmann
- 👤 Rainer Tiefenbacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:43
CPC Classifications
B; B60; B60K; B60K11/00; B60K11/08; Y; Y10; Y10S; Y10S165/00; Y10S165/903
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
144 words
Air ducting system for cooling air in an air duct in a front end of a motor vehicle, which duct is arranged in front of at least one wall defining a capsule surrounding an engine compartment in the direction of travel of the motor vehicle and has an essentially vertically positioned air inlet opening at a forward front end wall and an essentially horizontally positioned air outlet opening at an underside of the front end, wherein a plurality of aerodynamically shaped guide vanes divide the air duct into a plurality of sub-ducts, said guide vanes being arranged in the air duct to extend as far as the air outlet opening at the underside of the front end, and wherein the guide vanes are of hollow design and are flowed through by a cooling medium transversely to the direction of flow of the cooling air.
Claim 2
Dependent Claim
144 words
Air ducting system for cooling air in an air duct in a front end of a motor vehicle, which duct is arranged in front of at least one wall defining a capsule surrounding an engine compartment in the direction of travel of the motor vehicle and has an essentially vertically positioned air inlet opening at a forward front end wall and an essentially horizontally positioned air outlet opening at an underside of the front end, wherein a plurality of aerodynamically shaped guide vanes divide the air duct into a plurality of sub-ducts, said guide vanes being arranged in the air duct to extend as far as the air outlet opening at the underside of the front end, and wherein the guide vanes are of hollow design and are flowed through by a cooling medium transversely to the direction of flow of the cooling air.
Claim 3
Dependent Claim
36 words
Air ducting system according to claim 1, wherein the lateral walls of the air duct form radiator tanks which are connected to the inside of the guide vanes for the purpose of passing through cooling medium.
Claim 4
Dependent Claim
21 words
Air ducting system according to claim 2, wherein the lateral walls of the air duct form parts of the capsule wall.
Claim 5
Dependent Claim
28 words
Air ducting system according to claim 1, wherein a rear wall of the air duct in the direction of travel is formed by a uniformly curved capsule wall.
Claim 6
Dependent Claim
35 words
Air ducting system according to claim 1, wherein an essentially vertical radiator to which the guide vanes are directly connected, is arranged in the air duct between the air inlet opening and the guide vanes.
Claim 7
Dependent Claim
14 words
Air ducting system according to claim 1, wherein the cooling medium is cooling water.
Claim 8
Dependent Claim
28 words
Air ducting system according to claim 2, wherein a rear wall of the air duct in the direction of travel is formed by a uniformly curved capsule wall.
Claim 9
Dependent Claim
35 words
Air ducting system according to claim 2, wherein an essentially vertical radiator to which the guide vanes are directly connected, is arranged in the air duct between the air inlet opening and the guide vanes.
Claim 10
Dependent Claim
16 words
Air ducting system according to claim 5, wherein the essentially vertical radiator is a water-filled radiator.
Claim 11
Dependent Claim
22 words
Air ducting system according to claim 5, wherein the essentially vertical radiator is an additional radiator other than an engine coolant radiator.
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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) | 1994-02-25 | 1994-08-27 | 1995-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-25 | 1998-08-27 | 1999-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-25 | 2002-08-27 | 2003-02-26 | $7700.00 | Window Closed / Lapsed |