Injector
AssigneeHolec N.V.
InventorWillem Brinkman
Life of this patent
Estimating the term…
Abstract
An injector for delivering fuel to at least one atomizer of a combustion engine comprises at least one pump communicating with the atomizer and control-means depending upon the pressure in the inlet manifold of the combustion engine for regulating the quantity of fuel to be atomized by the atomizer. The invention has for its object to avoid, in the decelerating state of the combustion engine, environmentally polluting constituents in the exhaust gases of the combustion engine and to prevent spoiling of fuel. This is achieved by providing the control-means with a switch for stopping the pump when the pressure in the inlet manifold drops below a given value. Soon after the decelerating state of the combustion engine is realized, this injector does no longer supply any fuel.
Claims17
In combination with an internal combustion engine provided with a fuel atomizer having a pressure-responsive outlet valve;
- electrically actuated pump means for discharging fuel at intermittent intervals and at increasing volumetric rate during each such interval;
- control means for varying the quantity of fuel discharged by said pump means during said intervals in accord with operating conditions of the engine;
- conduit means connecting said pump means to said atomizer for directing fuel discharged by said pump means to said atomizer, said conduit means having finite volumetric capacity whereby at some minimum value of the quantity of fuel discharged by said pump means as controlled by said control means said atomizer can no longer adequately atomize the discharged fuel;
- and
- switch means actuated in consonance with said control means for deenergizing said pump means when said pump means would otherwise discharge said minimum value quantity of fuel.
Dependencies are inferred from the claim text.