Air-induction system with hydrocarbon emissions valve
AssigneeFord Global Technologies, LLC
InventorsJames Stevens, Brendan F. Diamond, David Guglielmo
Life of this patent
Estimating the term…
Abstract
An engine includes an intake manifold and an air-induction system configured to deliver air to the intake manifold. The air-induction system includes a throttle attached to the intake manifold, an air cleaner, conduit connecting between the air cleaner and the throttle to create a flow path therebetween, and a valve disposed in the flow path to be upstream of the throttle and downstream the air cleaner. The valve has a closed position in which the flow path is blocked to hold hydrocarbons within the intake manifold and inhibit emission therefrom and has an open position in which the flow path is unimpeded.
Claims20
An engine comprising:
- an intake manifold;
- and
- an air-induction system configured to deliver air to the intake manifold, the air-induction system including:
- a throttle attached to the intake manifold,
- an air cleaner,
- conduit connecting between the air cleaner and the throttle to create a flow path therebetween, and
- a valve disposed in the flow path to be upstream of the throttle and downstream the air cleaner, the valve having a closed position in which the flow path is blocked to hold hydrocarbons within the intake manifold and inhibit emission therefrom and having an open position in which the flow path is unimpeded.
An engine comprising:
- an intake manifold;
- and
- an air-induction system configured to deliver air to the intake manifold, the air-induction system including:
- a throttle attached to the intake manifold,
- an air cleaner, and
- a valve having a body defining an inlet fluidly connected to the air cleaner, an outlet fluidly connected to the throttle, and a valve seat disposed between the inlet and the outlet, the valve further having an actuatable restriction member that is spaced from the valve seat when the valve is in an open position and that is seated on the valve seat when the valve is in a closed position such that hydrocarbons emanating from the intake manifold are inhibited from passing therethrough to reduce hydrocarbon emissions.
An air-induction system of an engine comprising:
- a throttle attachable to an engine intake manifold;
- an air cleaner;
- and
- a valve having a body defining an inlet fluidly connected to the air cleaner, an outlet fluidly connected to the throttle, and a valve seat disposed between the inlet and the outlet, the valve further having an actuatable restriction member that is seated on the valve seat when the valve is in a closed position to inhibit hydrocarbons from passing therethrough and that is spaced from the valve seat when the valve is in an open position.
Dependencies are inferred from the claim text.