Supply system for supplying an internal combustion engine with air and fuel
AssigneeI.C.P. S.r.l.
InventorTancredi Razzano
Life of this patent
Estimating the term…
Abstract
A supply system, fur supplying an internal combustion engine with air and fuel, is provided with a first fuel supply circuit, having at least one electro-injector controlled b an electronic unit, an intake conduit conveying combustion air, a throttle valve in the intake conduit, and a second fuel supply circuit, activated in the event of failure and having a nozzle that atomizes fuel due to a depression in the intake conduit; a fuel flow rate adjusting valve varies the flow rate exiting from the nozzle, under the operation of a mechanical transmission; according to the operation of the throttle valve.
Claims10
A supply system for supplying an internal combustion engine with air and fuel, the system comprising;
- a first fuel supply circuit, comprising at least one electro-injector controlled, in use, by electrical signals emitted by an electronic unit so as to inject pressurized fuel;
- an intake conduit for conveying combustion air to said engine;
- a throttle valve operable for varying the combustion air flow rate in said intake conduit;
- a second fuel supply circuit, comprising a nozzle configured to atomize fuel into said intake conduit due to a depression in said intake conduit;
- a flow rate adjusting valve for varying the fuel flow rate exiting from said nozzle;
- a mechanical transmission which mechanically operates said flow rate adjusting valve according to the operation of said throttle valve;
- switching means that selectively activate either one or the other of said first and second fuel supply circuit;
- and
- wherein said switching means comprise control means configured so as to activate said second fuel supply circuit in case of failure.
Dependencies are inferred from the claim text.