摘要:
An exhaust particulate filter for an engine system includes an array of filter cartridges positioned within a shell, each of the cartridges having an electrically powered heating element coupled therewith. Exhaust gases are distributed among the cartridges according to a single distribution pattern, and the filter can be regenerated without diverting, dividing or bypassing exhaust gases from the filter. Other aspects include feedback control and feedforward control of regeneration based on sensing an electrical resistance property of each of the electrically powered heating elements.
摘要:
A multiple spark pattern internal combustion initiation device includes a body defining a prechamber and a plurality of orifices from the prechamber. The device includes at least two electrical circuits which each form a spark gap with an electrical ground inside the prechamber, operable to create a plurality of different spark patterns. The device may be part of an internal combustion engine which includes a housing with a combustion chamber connected to the prechamber, and means for supplying a lean gaseous fuel mixture into the combustion chamber.
摘要:
The present disclose is directed to a power system. The power system may include a power source that creates a flow of exhaust. The power system may further include a particulate collection device that receives the flow of exhaust. The power system may also include an additive injector located downstream of the power source, the additive injector may be configured to provide a controlled supply of additive to the flow of exhaust.
摘要:
The present disclose is directed to a power system. The power system may include a power source that creates a flow of exhaust. The power system may further include a particulate collection device that receives the flow of exhaust. The power system may also include an additive injector located downstream of the power source, the additive injector may be configured to provide a controlled supply of additive to the flow of exhaust.
摘要:
Lower temperature combustion, which may lead to lower emissions, is accomplished by displacing air adjacent to a fuel injector nozzle. Initially, air is compressed in an engine cylinder by moving the engine piston toward top dead center. Air is displaced through a flow passage within the engine cylinder when the engine piston is in the vicinity of top dead center by moving an air displacement actuator. The air displacement actuator includes a member positioned in the combustion chamber that moves with respect to the engine housing and the piston when actuated. This movement causes air to flow through a flow passage, and fuel is injected into the turbulent compressed air flowing through the flow passage. The mixture of air and fuel are compression ignited in the engine cylinder after a brief ignition delay. Lower emissions may be achieved by bringing the air to the fuel prior to ignition, rather than attempting to bring the fuel to the air as in a typical compression ignition engine.
摘要:
An internal combustion engine has at least one combustion chamber and a piston configured to reciprocate within the at least one combustion chamber between a top-dead-center position and a bottom-dead-center position. The internal combustion engine also has a pre-combustion chamber, an air induction system, a fuel system, a spark plug at least partially disposed within the pre-combustion chamber. The air induction system is configured to direct air into the at least one combustion chamber. The fuel system is configured to direct gasoline into the at least one combustion chamber. The spark plug is configured to selectively ignite a mixture of the air and gasoline. The internal combustion engine also has an exhaust system configured to direct exhaust from the at least one combustion chamber and an exhaust gas recirculation system configured to selectively redirect at least a portion of the exhaust from the exhaust system back to the air induction system.
摘要:
An internal combustion engine and method of operating an engine is provided. The engine comprises a piston cylinder formed within an engine block, an engine head secured to the engine block, a primary piston configured to slide within the piston cylinder, a main combustion chamber that is defined by the primary piston, piston cylinder, and engine head, a variable volume prechamber formed within the engine head and in fluid communication with the main combustion chamber, an ignition device configured to ignite a fuel within the prechamber, and a prechamber piston configured to translate within the prechamber. Translation of the prechamber piston within the prechamber varies the volume within the prechamber. The engine is characterized in that the prechamber comprises at least one orifice that provides fluid communication between the prechamber and the main combustion chamber.
摘要:
An exhaust particulate filter for an engine system includes an array of filter cartridges positioned within a shell, each of the cartridges having an electrically powered heating element coupled therewith. Exhaust gases are distributed among the cartridges according to a single distribution pattern, and the filter can be regenerated without diverting, dividing or bypassing exhaust gases from the filter. Other aspects include feedback control and feedforward control of regeneration based on sensing an electrical resistance property of each of the electrically powered heating elements.
摘要:
A power system is provided. The power system includes a power source configured to generate a flow of exhaust including particulate matter. The power system also includes a fuel supply line connecting a fuel supply and the power source, and being configured to direct a fuel flow from the fuel supply to the power source. An additive injector is configured to inject an additive into the fuel flow. An ionization device is at least partially disposed within the flow of exhaust, and is configured to apply a charge to the particulate matter and the additive. A particulate filter is configured to remove the particulate matter and the additive from the flow of exhaust.
摘要:
A multiple spark pattern internal combustion initiation device includes a body defining a prechamber and a plurality of orifices from the prechamber. The device includes at least two electrical circuits which each form a spark gap with an electrical ground inside the prechamber, operable to create a plurality of different spark patterns. The device may be part of an internal combustion engine which includes a housing with a combustion chamber connected to the prechamber, and means for supplying a lean gaseous fuel mixture into the combustion chamber.