US4099496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetor heat shield
Assignee: Honda Motor Co Ltd
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Filing: 1976-10-27
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Granted: 1978-07-11
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Expires: 1996-10-27
Abstract
Abstract A system is disclosed for preventing overheating of a carburetor of the type which is placed with an intake manifold above an exhaust manifold. A heat insulating plate is disposed substantially horizontally between the intake manifold and the carburetor. This plate extends to substantially cover the area above the exhaust manifold. A substantially vertical plate extends upwardly from the heat insulating plate at an edge thereof most distant from the engine. A path is thereby created for the convection currents from the exhaust manifold to bypass the carburetor.
Inventors
- 👤 Hidenobu Nagase
- 👤 Eiji Kishida
- 👤 Mitsuji Yoshihara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:02
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/14; F02; F02M; F02M15/00; F02M15/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
135 words
An intake system for an automobile engine, including a carburetor having a float chamber and an intake manifold, said carburetor being mounted on top of said intake manifold, said intake manifold being of a type employed directly above an exhaust manifold, the improvement comprising: a first heat insulating plate positioned between the carburetor and the intake manifold in a substantially horizontal orientation, said first plate being capable of covering at least substantially all of the area above an exhaust manifold with which the intake maifold is to be associated, a second plate extending substantially vertically from an edge of said first plate most distant from said engine, to at least about the height of said float chamber and a third plate extends downwardly from said edge of said first plate most distant from said engine.
Claim 2
Dependent Claim
135 words
An intake system for an automobile engine, including a carburetor having a float chamber and an intake manifold, said carburetor being mounted on top of said intake manifold, said intake manifold being of a type employed directly above an exhaust manifold, the improvement comprising: a first heat insulating plate positioned between the carburetor and the intake manifold in a substantially horizontal orientation, said first plate being capable of covering at least substantially all of the area above an exhaust manifold with which the intake maifold is to be associated, a second plate extending substantially vertically from an edge of said first plate most distant from said engine, to at least about the height of said float chamber and a third plate extends downwardly from said edge of said first plate most distant from said engine.
Claim 3
Dependent Claim
18 words
The intake system of claim 1 wherein said first plate extends to the engine above the intake manifold.
References Cited (Backward Citations)
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US2635597A
Cited
US3916860A
Cited
US3994270A
Cited
US3994271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |