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US 2012/0234303 A1Published application
System for improving gas distribution in an intake manifold
AssigneeFord Global Technologies, LLC
InventorsDavid Born, Nolan Dickey
Life of this patent
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Abstract
A system for improving distribution of gases within an intake manifold of an engine is presented. The system may be used to improve engine air-fuel control. In one example, turbulence of gases entering an intake manifold is increased.
Claims21
1-20. (canceled)
An intake manifold, comprising:
- a non-partitioned intake manifold including an inlet and a common collector coupled to a plurality of intake runners;
- a first port piercing an intake manifold wall downstream of the inlet;
- a second port piercing the intake manifold wall;
- a first ramp position upstream of the first port;
- a second ramp positioned upstream of the second port;
- and
- a protrusion positioned downstream of the first and second ports.
4 more elements
An engine intake manifold, comprising:
- first and second ports located in the intake manifold and in an air flow path downstream of a throttle body mounting flange and upstream of a plurality of runners;
- and
- a protrusion from an inside wall of the intake manifold, a length of the protrusion less than a diameter of the intake manifold where the protrusion is located, the protrusion located downstream of the first and second ports and upstream of the plurality of runners.
A method for distributing fuel vapor containing gases in an intake manifold, comprising:
- selectively introducing fuel vapors into the intake manifold via a first port;
- passing air over a first ramp and combining the air with the fuel vapors;
- and
- passing the fuel vapors over or around an oblong protrusion, the oblong protrusion downstream of the first ramp.
1 more element
Dependencies are inferred from the claim text.