EP0235835A1
Expired / Lapsed
EP
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Gasoline feed device for internal combustion engine
Assignee: Fiat Auto SpA
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Filing: 1987-01-29
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Granted: —
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Expires: 2007-01-29
Abstract
Abstract A device is proposed for gasoline feeding to an internal combustion engine, comprising injectors (24,25,26,27) for injecting gasoline in the nearby of intake valves under low- and medium-load operating conditions, and valve means (31,45) to feed gasoline into the feed manifold under high-load operating conditions.
Inventors
- 👤 Domenico D'angelo
- 👤 Marco Visconti
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 05:50
CPC Classifications
F; F02; F02M; F02M69/00; F02M69/30; F02M69/34; F02M51/00; F02M51/02; F02M69/04; F02M69/042; F02M69/044; F02B; F02B1/00; F02B1/02; F02B1/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
158 words
Gasoline feeding device for a multi-cylinder internal combustion engine equipped with an air feeding system comprising a feed manifold and individual feed ducts connected to the same manifold and to respective cylinders, wherein said gasoline feeding device comprises a feed pipe for feeding said gasoline under a pre-established pressure, injectors positioned in said individual feed ducts, in the nearby of the intake valves of the respective cylinders, and connected to said gasoline feed pipe, and a control unit operatively connected to said injectors and to said sensors of preselected engine operating parameters, said device being characterized in that it additionally comprises valve means connected to said gasoline feed pipe and able to deliver said gasoline into said feed manifold, wherein also the above-said valve means are operatively connected to said control unit to be controlled to deliver said gasoline into the same manifold under pre-established engine operating conditions, as defined by prefixed values of determined engine operating parameters.
Claim 2
Dependent Claim
158 words
Gasoline feeding device for a multi-cylinder internal combustion engine equipped with an air feeding system comprising a feed manifold and individual feed ducts connected to the same manifold and to respective cylinders, wherein said gasoline feeding device comprises a feed pipe for feeding said gasoline under a pre-established pressure, injectors positioned in said individual feed ducts, in the nearby of the intake valves of the respective cylinders, and connected to said gasoline feed pipe, and a control unit operatively connected to said injectors and to said sensors of preselected engine operating parameters, said device being characterized in that it additionally comprises valve means connected to said gasoline feed pipe and able to deliver said gasoline into said feed manifold, wherein also the above-said valve means are operatively connected to said control unit to be controlled to deliver said gasoline into the same manifold under pre-established engine operating conditions, as defined by prefixed values of determined engine operating parameters.
Claim 3
Dependent Claim
23 words
Device according to claim 1, characterized in that it comprises a calibrated nozzle, through which said valve means deliver gasoline into said manifold.
Claim 4
Dependent Claim
17 words
Device according to claim 1, characterized in that said valve means are constituted by a further injector.
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