Combustion-gas recirculation system
AssigneeCaterpillar Inc.
InventorDarryl Baldwin
Life of this patent
Estimating the term…
Abstract
A combustion-gas recirculation system has a mixing chamber with a mixing-chamber inlet and a mixing-chamber outlet. The combustion-gas recirculation system may further include a duct connected to the mixing-chamber inlet. Additionally, the combustion-gas recirculation system may include an open inlet channel with a solid outer wall. The open inlet channel may extend into the mixing chamber such that an end of the open inlet channel is disposed between the mixing-chamber inlet and the mixing-chamber outlet. Furthermore, air within the open inlet channel may be at a pressure near or below atmospheric pressure.
Claims24
1-23. (canceled)
A combustion-gas recirculation system, comprising:
- a mixing chamber with a mixing-chamber inlet and a mixing-chamber outlet;
- a duct connected to the mixing-chamber inlet;
- an open inlet channel, with a solid outer wall, that extends into the mixing chamber such that an end of the open inlet channel is disposed between the mixing-chamber inlet and the mixing-chamber outlet;
- and
- wherein air within open inlet channel is at a pressure near or below atmospheric pressure.
A method of supplying air and a second gas to a combustion chamber of an engine, the method comprising:
- directing the air through an open inlet channel at a pressure near or below atmospheric pressure, through an end of the open inlet channel disposed inside a mixing chamber between a mixing-chamber inlet and a mixing-chamber outlet, through the mixing chamber, through the mixing-chamber outlet, to the combustion chamber;
- and
- directing the second gas through a duct, through the mixing-chamber inlet into the mixing chamber, through the mixing chamber, through the mixing-chamber outlet, to the combustion chamber.
An engine, comprising:
- a housing including a combustion chamber;
- an air-intake system, including:
- a mixing chamber with a mixing-chamber inlet and a mixing-chamber outlet, wherein the mixing-chamber outlet is fluidly connected to the combustion chamber;
- an open inlet channel, wherein a first end of the open inlet channel is in fluid communication with the atmosphere and the open inlet channel extends into the mixing chamber such that a second end of the open inlet channel is disposed between the mixing-chamber inlet and the mixing-chamber outlet;
- and
- wherein the air-intake system is configured such that, during operation of the engine, air within the open inlet channel has a pressure near or below atmospheric pressure.
Dependencies are inferred from the claim text.