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US5259356A
Expired / Lapsed
US
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Device at internal combustion engine with fuel injection
Assignee: Volvo AB
•
Filing: 1992-07-08
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Granted: 1993-11-09
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Expires: 2012-07-08
Abstract
Abstract A device at air filters of intake systems of internal combustion engines with fuel injection. The fuel pipe (21) is to a part of its length positioned in the air filter air space (14) of the housing (10), whereby a cooling of the fuel supplied is obtained.
Inventors
- 👤 Jan Karlsson
- 👤 Jan Dahlgren
- 👤 Erling Tyllstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:29
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/104; F02M35/112; F02B; F02B27/00; F02B27/005; F02B27/006; F02M31/00; F02M31/20; F02M35/02; F02M35/04; F02M35/10006; F02M35/10026; F02M35/10039; F02M35/10209; F02M35/10216; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
73 words
An air intake device for a combustion engine having a fuel supply pipe and associated fuel injector, an air intake manifold having an air induction passage, a filter housing atop thereof, the improvement characterized in that a portion of the fuel supply pipe and at least one associated fuel injector extend into the said air induction passage so that the fuel in said pipe is cooled by air passing through said induction pipe.
Claim 2
Dependent Claim
73 words
An air intake device for a combustion engine having a fuel supply pipe and associated fuel injector, an air intake manifold having an air induction passage, a filter housing atop thereof, the improvement characterized in that a portion of the fuel supply pipe and at least one associated fuel injector extend into the said air induction passage so that the fuel in said pipe is cooled by air passing through said induction pipe.
Claim 3
Dependent Claim
22 words
A device according to claim 1 wherein said fuel supply pipe is embedded into and forms a unit with the induction pipe.
References Cited (Backward Citations)
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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) | 1996-11-08 | 1997-05-10 | 1997-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-08 | 2001-05-10 | 2001-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-08 | 2005-05-10 | 2005-11-09 | $7700.00 | Window Closed / Lapsed |