US5143516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recirculation shield and fan shroud assembly
Assignee: Paccar Inc
•
Filing: 1991-06-18
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Granted: 1992-09-01
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Expires: 2011-06-18
Abstract
Abstract A recirculation shield and engine fan shroud assembly. The apparatus includes a shroud assembly mounted to the radiator. The shroud is configured so as to conform with and seal the interior of the engine compartment around the radiator such that substantially all the air entering the engine compartment is of ambient temperature free from recirculation of hot fan discharge airflow.
Inventors
- 👤 Steven Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:22
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/52; F04D29/54; F04D29/541; B; B60; B60K; B60K11/00; B60K11/08; F01; F01P; F01P11/00; F01P11/10; F01P5/00; F01P5/02; F01P5/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
146 words
In an apparatus for directing the flow of air relative to a radiator and a fan of an internal combustion engine mounted in an engine compartment defined by opposed engine tunnel walls, said apparatus including a fan shroud mounted around said fan to enhance and direct the flow of air through said radiator, and a recirculation seal extending radially in said engine compartment from said radiator to said engine tunnel walls and preventing recirculation of air from said fan to a position in front of said radiator, the improvement in said apparatus comprising: at least one rubber recirculation shield bracket molded integrally with said fan shroud and extending radially therefrom toward said engine tunnel walls; at lease one recirculation seal being mounted to said shield bracket and radially outwardly cantilevered from said bracket to form, an airtight fan shroud assembly between said fan shroud and walls;
Claim 2
Dependent Claim
146 words
In an apparatus for directing the flow of air relative to a radiator and a fan of an internal combustion engine mounted in an engine compartment defined by opposed engine tunnel walls, said apparatus including a fan shroud mounted around said fan to enhance and direct the flow of air through said radiator, and a recirculation seal extending radially in said engine compartment from said radiator to said engine tunnel walls and preventing recirculation of air from said fan to a position in front of said radiator, the improvement in said apparatus comprising: at least one rubber recirculation shield bracket molded integrally with said fan shroud and extending radially therefrom toward said engine tunnel walls; at lease one recirculation seal being mounted to said shield bracket and radially outwardly cantilevered from said bracket to form, an airtight fan shroud assembly between said fan shroud and walls;
Claim 3
Dependent Claim
20 words
The apparatus of claim 1 wherein, said recirculation seal is provided by rubber flaps mechanically attached to said shield bracket.
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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) | 1995-09-01 | 1996-03-02 | 1996-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-01 | 2000-03-02 | 2000-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-01 | 2004-03-02 | 2004-09-01 | $7700.00 | Window Closed / Lapsed |