Intake manifold and corresponding fuel system for a vehicle
AssigneeFord Global Technologies, LLC
InventorsJohn Carl Lohr, Christopher K. Palazzolo, Nolan Dickey
Life of this patent
Estimating the term…
Abstract
An intake manifold for an engine includes an air inlet port and a false wall. The air inlet port has an interior surface partially defining a channel. The false wall also partially defines the channel. The false wall is flush with the interior surface. A chamber is defined on an opposing side of the false wall relative to the channel. A gap is defined between outer edges of the false wall and the interior surface. The gap establishes fluid communication between the chamber and the channel. The air inlet port defines an orifice configured to establish fluid communication between a fuel evaporative recovery system and the chamber.
Claims20
A vehicle comprising:
- an engine configured to propel the vehicle;
- a fuel tank configured to store fuel;
- a canister in fluid communication with the fuel tank and configured to receive and store evaporated fuel from the fuel tank;
- an intake manifold configured to direct air to the engine and having an inlet conduit that defines a channel configured to receive air from a throttle, wherein the inlet conduit has a (i) primary wall partially defining the channel and (ii) a secondary wall partially defining the channel, wherein the secondary wall overlaps and is offset from a first portion of the primary wall such that (a) a chamber is defined between a radially outward facing surface of the secondary wall and a radially inward facing surface of the primary wall along the first portion of the primary wall and (b) a gap is defined between an outer periphery of the secondary wall and a second portion of the primary wall, and wherein the gap establishes fluid communication between the chamber and the channel;
- a purge valve disposed between the canister and the intake manifold;
- a purge conduit configured to establish fluid communication between the purge valve and the chamber;
- and
- a controller programmed to, in response to a command to purge the canister of evaporated fuel, open the purge valve and direct the evaporate fuel to the chamber via the purge conduit.
An intake manifold for an engine comprising:
- a conduit having a primary wall partially defining an air intake channel;
- a throttle body mounting flange (i) protruding radially outward from an end of the conduit, (ii) defining an opening to the air intake channel, and (iii) configured to receive a throttle body for installation thereon;
- and
- a secondary wall partially defining the air intake channel and offset from the primary wall such that (i) a chamber is defined between an exterior side of the secondary wall and an interior side of the primary wall and (ii) a gap is defined between outer edges of the secondary wall and inner edges of the primary wall, wherein the gap establishes fluid communication between the chamber and the channel, and wherein the conduit defines an orifice configured to establish fluid communication between a fuel evaporate storage canister and the chamber.
An intake manifold for an engine comprising:
- an air inlet port having an interior surface partially defining a channel;
- and
- a false wall partially defining the channel, wherein (i) the false wall is flush with the interior surface, (ii) a chamber is defined on an opposing side of the false wall relative to the channel, (iii) a gap is defined between outer edges of the false wall and the interior surface, (iv) the gap establishes fluid communication between the chamber and the channel, and (v) the air inlet port defines an orifice configured to establish fluid communication between a fuel evaporate recovery system and the chamber.
Dependencies are inferred from the claim text.