Patent application number | Description | Published |
20110146618 | PRE-COMBUSTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE - An apparatus is disclosed including a first end defining an inner passage along a first inner surface of the first end, where the inner passage has threads structured to receive a spark plug. The apparatus further includes a second end opposite the first end and extending into a combustion chamber of a cylinder, the second end defining a pre-combustion chamber along a second inner surface and threads on an outer surface structured to thread into a spark plug hole in a cylinder head, which may be an enlarged spark plug hole. The second end includes holes that fluidly couple the pre-combustion chamber of the second end with the combustion chamber of the cylinder. | 06-23-2011 |
20110283980 | INTERNAL COMBUSTION ENGINE HAVING COMBUSTION CHAMBER WITH BLENDED HEMISPHERICAL AND PENT-ROOF PORTIONS - An internal combustion engine is provided including an engine block, a cylinder head mounted on the engine block including a combustion face forming a portion of a combustion chamber, wherein the combustion face includes a pent-roof portion and a hemispherical shaped portion. A first intake valve port formed in the cylinder head includes a first intake valve port opening formed in the pent-roof portion while a second intake valve port formed in the cylinder head includes a second intake valve port opening formed in the pent-roof portion. An exhaust valve port formed in the cylinder head includes an exhaust valve port opening formed in the hemispherical shaped portion. A transition portion may also be included to blend the combustion face connecting the pent-roof and the hemispherical portions. One or more spark plug bore openings are formed and optimally positioned in the combustion face. | 11-24-2011 |
20140069086 | EXHAUST SYSTEM FOR SPARK-IGNITED GASEOUS FUEL INTERNAL COMBUSTION ENGINE - An internal combustion engine system includes a spark-ignited internal combustion engine powered by a gaseous fuel. The engine system also includes an air intake in air providing communication with the internal combustion engine. Further, the engine system includes an exhaust system in exhaust gas receiving communication with the internal combustion engine. The exhaust system includes a methane oxidation catalyst through which at least a portion of the exhaust gas flows and an exhaust gas recirculation line in exhaust gas providing communication with the air intake. | 03-13-2014 |
20140260196 | AIR DITHERING FOR INTERNAL COMBUSTION ENGINE SYSTEM - Described herein is an air dithering system for an internal combustion engine generating exhaust gas that includes an exhaust line in exhaust gas receiving communication with the internal combustion engine. The system also includes an exhaust aftertreatment component positioned within the exhaust line in exhaust gas receiving communication with exhaust gas in the exhaust line. Further, the system includes an air injector in air injecting communication with exhaust gas in the exhaust line at a location downstream of the internal combustion engine and upstream of the exhaust aftertreatment component. | 09-18-2014 |
20140260203 | Gaseous Fuel Spark-Ignited Internal Combustion Engine System - A system and method for reforming a portion of an exhaust gas stream in an internal combustion engine system. An exhaust gas recirculation assembly divides the exhaust gas stream into a recycle stream and a vent stream. A mixer in fluid receiving communication with the recycle stream forms a combination stream by mixing a gaseous fuel stream with the recycle stream. A thermochemical recuperator component fluidly connects to the mixer and includes a first flow path and a second flow path. The first flow path has a catalyst through which the combination stream flows to create a reformate stream, and the second flow path has a heat transfer area for transferring heat from the vent stream to the combination stream. | 09-18-2014 |
20140261298 | PRE-CHAMBER FOR INTERNAL COMBUSTION ENGINE - Described herein is a combustion pre-chamber apparatus for a main combustion chamber of an internal combustion engine that includes a body that defines an internal combustion cavity. The apparatus also includes at least one orifice that extends through the body. The at least one orifice includes a first end open to the internal combustion cavity and a second end open to the main combustion chamber. The first end is bigger than the second end. | 09-18-2014 |
20140261351 | Air-Fuel-Ratio Dithering Using a Dual Fuel Path Source - An apparatus for dithering fuel into an internal combustion engine includes a turbine that is powered by the internal combustion engine and a first fuel injector that injects a first fuel into an air stream to create a fuel/air stream. The apparatus also includes an air/fuel compressor that provides a compressed fuel/air stream to the internal combustion engine. The air/fuel compressor is powered by the turbine, and the air/fuel compressor compresses the fuel/air stream to create the compressed fuel/air stream. Additionally, the apparatus includes a second fuel injector that injects a second fuel into the compressed fuel/air stream prior to the compressed fuel/air stream entering the engine and after the compressed fuel/air stream exits the air/fuel compressor. | 09-18-2014 |
20150020766 | PRECHAMBER DEVICE FOR AN INTERNAL COMBUSTION ENGINE - The disclosure is directed to an internal combustion engine having an improved prechamber device. The prechamber device includes features that provide improved mixing of fuel and air, specifically, a plurality of ribs positioned in a cavity of the prechamber device. The improved mixing of fuel and air yields improved uniformity of combustion in an associated combustion chamber. | 01-22-2015 |