Patent EP0297670A2 successfully refreshed from Google Patents.
EP0297670A2
Expired / Lapsed
EP
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Controlled feed and ignition apparatus for internal combustion engines
Assignee: Morini Franco Motori SpA
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Filing: 1988-06-27
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Granted: —
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Expires: 2008-06-27
Abstract
Abstract The controlled feed and ignition device for internal combustion engines comprises a carburettor having an air feed duct equipped with a controllable regulator valve and having a reduced section, into which leads a flooded fuel feed duct from a constant level chamber, in which there is present a device for varying the flow cross-section of the fuel feed duct, an electronically controllable ignition device and an electronic control unit, adapted for governing the device for varying the flow cross-section of the fuel feed duct as a function of instantaneous operating data about the engine supplied to it from relative sensors, the electronic control unit being moreover adapted for acting upon the ignition device for regulating the spark advance value for the engine ignition, as a function of said instantaneous data supplied from the sensors, for setting optimum operating conditions for said engine.
Inventors
- 👤 Aroldo Trivelli
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 04:59
CPC Classifications
F; F02; F02P; F02P5/00; F02P5/04; F02P5/045; F02D; F02D11/00; F02D11/06; F02D11/10; F02D41/00; F02D41/30; F02M; F02M7/00; F02M7/12; F02M7/18; F02M7/20; F02D2011/101; F02D2011/102
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
Controlled feed and ignition device for internal combustion engines, characterized by the fact that it comprises a carburettor having an air feed duct equipped with a controllable regulator valve and having a zone of reduced cross-section, into which there leads a flooded fuel feed duct from a constant level chamber, in which there is present a member for varying the flow cross-section of the fuel feed duct, an electronically controllable ignition member and an electronic control unit, adapted for governing the member for varying the flow cross-section of the fuel feed duct as a function of instantaneous operating data of the engine supplied to it from associated sensors, the electronic control unit being, moreover, adapted for acting upon the ignition member for regulating the ignition advance value of the engine as a function of said instantaneous data supplied by the sensors, for setting optimum operating conditions for said engine.
Claim 2
Dependent Claim
149 words
Controlled feed and ignition device for internal combustion engines, characterized by the fact that it comprises a carburettor having an air feed duct equipped with a controllable regulator valve and having a zone of reduced cross-section, into which there leads a flooded fuel feed duct from a constant level chamber, in which there is present a member for varying the flow cross-section of the fuel feed duct, an electronically controllable ignition member and an electronic control unit, adapted for governing the member for varying the flow cross-section of the fuel feed duct as a function of instantaneous operating data of the engine supplied to it from associated sensors, the electronic control unit being, moreover, adapted for acting upon the ignition member for regulating the ignition advance value of the engine as a function of said instantaneous data supplied by the sensors, for setting optimum operating conditions for said engine.
Claim 3
Dependent Claim
99 words
Controlled feed and ignition device for internal combustion engines according to claim 1, characterized by the fact that the member for varying the flow cross-section of the fuel feed duct is constituted of a stem having a tapered end, capable of being inserted to a variable depth into the fuel feed duct, coaxially with it, determining, in cooperation with said duct, an annular flow aperture of variable cross-section in correspondence with the amount of insertion of said end into the duct, the stem being equipped with a controllable actuator adapted for determining its depth of insertion into the duct.
Claim 4
Dependent Claim
94 words
Controlled feed and ignition device for internal combustion engines, according to claim 1, characterized by the fact that the controllable regulating valve for the air feed duct of the carburettor is equipped with a position transducer, generating a signal corresponding, at each instant, to the position of the valve, this signal being adapted to be despatched to the electronic control unit for regulating, on the basis of this signal and possibly other values, the value of the flow cross-section of the fuel feed duct of the carburettor and the value of the ignition advance.
Claim 5
Dependent Claim
85 words
Controlled feed and ignition device for internal combustion engines according to claim 1, characterized by the fact that there is present a sensor of the rotational speed of the engine, generating a signal corresponding, at each instant, to said speed, the signal being adapted to be despatched to the electronic control unit for regulating, on the basis of this signal and possibly other values, the value of the flow cross-section of the fuel feed duct of the carburettor and the value of the ignition advance.
Claim 6
Dependent Claim
97 words
Controlled feed and ignition device for internal combustion engines according to claim 1, characterized by the fact that there is present at least one sensor for the temperature of the engine or of an important element of the engine, this sensor generating a signal corresponding, at each instant, to said temperature, this signal being adapted to be despatched to the electronic control unit for regulating, on the basis of the signal and possibly of other values, the value of the flow cross-section of the fuel feed duct of the carburettor and the value of the ignition advance.
Claim 7
Dependent Claim
109 words
Controlled feed and ignition device for internal combustion engines according to one or more of the preceding claims, characterized by the fact that the electronic control unit comprises a memory unit having recorded, in a plurality of important operating conditions of the engine, the values of the quantities detected by the sensors and of the regulated quantities, that is to say ignition advance and flow cross-section for the fuel, in the optimum operating conditions, and a microprocessor adapted for governing, in the different operating conditions, the setting of the values of the optimum regulated quantities stored in the memory in correspondence with the instant-by-instant values detected by the sensors.
References Cited (Backward Citations)
No citation records indexed.
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