Patent application number | Description | Published |
20080223347 | ENGINE PCV SYSTEM WITH HYDROPHOBIC, OLEOPHOBIC MEMBRANE FOR AIR/OIL SEPARATION - An engine crankcase emission control system for an internal combustion engine includes a cylinder air intake system connected to associated engine cylinders. The system also includes an engine crankcase. A crankcase air outlet connects the crankcase to the cylinder air intake system at a location subject to variable intake vacuum pressures to allow crankcase vapors to be drawn into inlet air passing to the cylinders. A hydrophobic, oleophobic membrane covers the crankcase air outlet. The membrane inhibits the passage of oil and water out of the crankcase through the crankcase air outlet. | 09-18-2008 |
20090095665 | Anti-Drainback Valve For An Oil Filter - An anti-drainback apparatus for an oil filter assembly includes an anti-drainback valve formed from an elastomeric material. The anti-drainback valve is operable to selectively restrict reverse flow through the oil filter assembly. The anti-drainback valve is generally frusta-conical in shape and includes at least one relief valve to selectively open in the presence of a predetermined pressure to allow reverse flow through the oil filter assembly. An oil filter assembly is also provided incorporating the disclosed anti-drainback valve. | 04-16-2009 |
20100275886 | Engine Fuel Boil Off Management System - An engine assembly may include a crankcase ventilation assembly having a fuel separator assembly. The fuel separator assembly may include a condensing unit and a vaporizing unit. The condensing unit may include a gas region and a liquid retaining region. A gas inlet may be in fluid communication with the gas region and a gas flow from the engine block including fuel vapor. The condensing unit may convert the fuel vapor to liquid fuel. The first gas outlet may be in fluid communication with an engine air inlet and provide a remainder of the gas flow thereto. The fluid region may store and provide the liquid fuel to the vaporizing unit through a liquid inlet. The vaporizing unit may convert the liquid fuel to fuel vapor and a second gas outlet may provide the fuel vapor to the air inlet. | 11-04-2010 |
20110277733 | ENGINE INCLUDING POSITIVE CRANKCASE VENTILATION - An engine assembly may include an engine structure, an intake assembly and a cylinder head cover assembly. The engine structure may define a combustion chamber and a crankcase in communication with a fresh air supply. The intake assembly may be in communication with the combustion chamber. The cylinder head cover assembly may be fixed to the engine structure and may include a cover member defining a positive crankcase ventilation chamber and a separator coupled to the cover member. The separator may define an inlet providing communication between the crankcase and the positive crankcase ventilation chamber. The cylinder head cover assembly may include a first outlet flow path in communication with the intake assembly and a second outlet flow path in communication with the intake assembly. A first valve may be located in the first outlet flow path. | 11-17-2011 |
20120174888 | QUICK-RELEASE CAP WITH EJECTION RAMP - A quick-release cap is provided for closing the neck of a housing. The cap includes a core having a first end, a second end, and an exterior side wall between the first and second ends. The cap is configured to rotate between a cap-locked position securing the core within the neck and a cap-release position permitting removal of the core from the neck. A first groove is defined in the exterior side wall of the core and extends at least partially circumferentially around the core for receiving a first tab protruding from the neck. The first groove defines an ejection ramp for at least partially ejecting the first tab relative to the first groove when the cap moves from the cap-locked position to the cap-release position. The cap may be removed from the neck with the application of only a twisting force. | 07-12-2012 |
20120211216 | SYSTEM AND METHOD FOR CONTROLLING A TEMPERATURE OF OIL IN A POWER-PLANT OF A VEHICLE - A system is provided for controlling a temperature of oil in a power-plant operable to propel a vehicle. The system includes a heat-exchanger arranged relative to the power-plant. The heat-exchanger is configured to receive the oil from the power-plant, modify the temperature of the oil, and return the modified temperature oil to the power-plant. The system also includes a valve configured to direct the oil through the heat-exchanger during a warm-up operation of the power-plant such that the temperature of the oil is increased. The valve is also configured to direct the oil to bypass the heat-exchanger during a low load operation of the power-plant such that the temperature of the oil is increased. Additionally, the valve is configured to direct the oil through the heat-exchanger during a high load operation of the power-plant such that the temperature of the oil is decreased. | 08-23-2012 |
20120244994 | SYSTEM AND METHOD FOR PREVENTING ICING IN POSITIVE CRANKCASE VENTILATION SYSTEMS - A control system for an engine includes an icing condition detection module and an icing prevention module. The icing condition detection module detects an icing condition of a positive crankcase ventilation (PCV) system of the engine when an ambient temperature is less than a predetermined temperature for a first predetermined period. The icing prevention module increases engine speed for a second predetermined period when the icing condition is detected. | 09-27-2012 |
20120285425 | BLOWBY FLOW CONTROL SYSTEM FOR A TURBOCHARGED ENGINE - A flow control system is provided having an engine, a turbocharger, and positive crankcase ventilation (PCV) line, and a flow regulating device. The engine has an air-oil separator and an intake manifold. The air-oil separator separates oil droplets and oil mist from a blowby gas. The turbocharger has an air inlet and an air outlet, where the air outlet is connected to the intake manifold of the engine. The positive crankcase ventilation (PCV) vent line has a first end connected to the air-oil separator and a second end connected to the air inlet of the turbocharger. The PCV vent line delivers the blowby gas from the air-oil separator to the air inlet of the turbocharger. The flow regulating device is located in the PCV vent line. The flow regulating device selectively limits the flow of blowby gas from the air-oil separator to the air inlet of the turbocharger. | 11-15-2012 |
20120304971 | ENGINE INCLUDING CRANKCASE VENTILATION SYSTEM OIL DRAIN FEATURES - An engine assembly includes an engine structure, an air intake assembly and a positive crankcase ventilation system. The engine structure defines an intake port and a crankcase. Furthermore, the air intake assembly is in communication with the intake port. The positive crankcase ventilation system includes a fresh air line, a housing and a foul air line. The fresh air line is in communication with the air intake assembly and the crankcase. The housing defines an air inlet and an air outlet with the air inlet being in communication with the crankcase and partially defined by a wall extending into an inner volume of the housing. An oil separation mechanism may be located in the housing between the air inlet and the air outlet. The foul air line is in communication with the air intake assembly and the air outlet. | 12-06-2012 |
20120318799 | DRAINABLE CONTAINER SYSTEM AND WELD NUT THEREOF - A drainable container system for a vehicle includes a container defining an interior cavity configured for storing a fluid, and a drain hole configured for draining the fluid from the interior cavity. The drainable container system further includes a drain plug configured for plugging the drain hole, and a weld nut attachable to the container and configured for receiving the drain plug. The weld nut includes a coupling portion matable with the drain plug and having a longitudinal axis, and a flange portion extending from the coupling portion and disposed substantially perpendicular to the longitudinal axis. The flange portion defines at least one channel therein configured for conducting the fluid to the drain hole. | 12-20-2012 |
20130008420 | AIR-OIL SEPARATOR FOR EXTRACTING OIL FROM ENGINE BLOWBY GAS - An engine assembly includes an engine and an intake assembly. The engine defines a combustion chamber and a crankcase, and the intake assembly includes an intake manifold in fluid communication with the combustion chamber. An air-oil separator is provided with the engine and defines a separator volume, an inlet and an outlet, where each of the inlet and outlet are in fluid communication with the separator volume. The inlet of the air-oil separator is provided in fluid communication with the crankcase, and the outlet of the air-oil separator is provided in fluid communication with the intake manifold. The air-oil separator further includes an interior surface that abuts and surrounds the separator volume, and the interior surface has a surface roughness (R | 01-10-2013 |
20130042844 | ENGINE ASSEMBLY INCLUDING POSITIVE CRANKCASE VENTILATION WITH OIL SURGE PROTECTION - An engine assembly includes an engine structure, an intake air assembly and a crankcase ventilation line assembly. The engine structure defines a cylinder bore, an intake port in communication with the cylinder bore, and a crankcase. The air intake assembly is in communication with the intake port. The crankcase ventilation line assembly includes a fresh air line and an oil surge protection device. The fresh air line is in communication with the crankcase and the air intake assembly and provides fresh air to the crankcase. The oil surge protection device is in communication with the fresh air line and defines an oil obstruction inhibiting oil flow to the air intake assembly while allowing air flow between the crankcase and the air intake assembly. | 02-21-2013 |
20130098342 | INTRODUCTION OF VENTILATION GASES VIA INDIVIDUAL PASSAGES TO THE INTAKE PORTS - An internal combustion engine includes a plurality of PCV ports formed internally within the engine block and the cylinder head. The PCV ports directly connect a crankcase chamber with each of a plurality of intake ports defined by the cylinder head. The blow-by gases that accumulate within the crankcase chamber are directly vented through the internal PCV ports into the intake ports. | 04-25-2013 |
20130112179 | POSITIVE CRANKCASE VENTILATION SYSTEM - An engine assembly includes an engine defining a combustion chamber and a crankcase volume, and an intake assembly having an air cleaner assembly, a throttle, and an intake manifold in a series arrangement and fluidly coupled with the combustion chamber. A first and second air-oil separator may define respective first and second separator volumes, each respectively configured to extract oil from air flowing through the volume. A first conduit may fluidly couple the crankcase with the first separator volume, a second conduit may fluidly couple the intake manifold with the first separator volume; a third conduit may fluidly couple the crankcase with the second separator volume; a fourth conduit may fluidly couple the air cleaner assembly with the second separator volume; and a fifth conduit may fluidly couple the air cleaner assembly with the first separator volume. | 05-09-2013 |
20130129489 | TURBOCHARGER OIL FEED SYSTEM - A feed line for connecting an oil pump to a turbocharger supplies oil to the turbocharger when the oil pump is active. The feed line includes a turbo end and a pump end, which is lower than the turbo end relative to gravity. Oil drains from at least the pump end of the feed line when the oil pump is not active. The feed line has a center axis running therethrough, and a pool zone is disposed between the pump end and the turbo end of the feed line. The center axis of the feed line drops from a main line level on either side of the pool zone to a trap level in the pool zone. The pool zone therefore retains oil when the oil pump is not active. | 05-23-2013 |
20130269636 | ENGINE ASSEMBLY WITH ENGINE BLOCK-MOUNTED AIR-OIL SEPARATOR AND METHOD OF VENTILATING AN ENGINE CRANKCASE - An engine assembly includes an engine block at least partially defining a combustion chamber and a crankcase volume. The engine block defines an opening in fluid communication with the crankcase volume. An air-oil separator is mounted to the engine block at the opening and is configured to separate oil from blowby gasses flowing from the crankcase volume through the air-oil separator. A method of venting an engine crankcase volume is also included. | 10-17-2013 |
20130306043 | POSITIVE CRANKCASE VENTILATION SYSTEM - An engine assembly includes an engine defining a combustion chamber and a crankcase volume, together with an intake assembly. The intake assembly includes an air cleaner assembly, a throttle, and an intake manifold in a series arrangement and fluidly coupled with the combustion chamber. An air-oil separator is fluidly coupled between the crankcase volume and the intake manifold and defines a separator volume configured to extract oil from air flowing through the volume. The air-oil separator includes a first inlet port configured to direct a first air flow into the separator volume substantially along a first direction, and a second inlet port configured to direct a second air flow into the volume substantially along a second direction that generally opposes the first direction. | 11-21-2013 |
20130340733 | CYLINDER HEAD CAVITY VENTILATION FOR CAMLESS ENGINE - An engine assembly may include an engine structure, intake and exhaust valves, hydraulically actuated valve lift mechanisms, and a valvetrain ventilation line. The engine structure may define a combustion chamber, intake and exhaust ports in communication with the combustion chamber, a crankcase, and a valvetrain chamber isolated from the crankcase. The intake valve may be located in the intake port and the exhaust valve may be located in the exhaust port. The hydraulically actuated valve lift mechanisms may be supported on the engine structure within the valvetrain chamber and engaged with the intake and exhaust valves. The valvetrain ventilation line may be in communication with the valvetrain chamber and may provide communication between the valvetrain chamber and the intake port. | 12-26-2013 |
20140096737 | INTERNAL COMBUSTION ENGINES AND OIL CONTAINMENT SYSTEMS THEREOF - An internal combustion engine includes an engine assembly and an oil containment system attachable to the assembly. The oil containment system includes a cover component including an oil fill apparatus configured for conducting an oil to the internal combustion engine. The apparatus has a first end sealable with a cap, a second end spaced apart from the first end along a central longitudinal axis, and an annular wall concentric with and extending along the central longitudinal axis. The annular wall defines a first passage therethrough and a channel extending through the cover component along the central longitudinal axis. The oil containment system also includes a baffle component abutting the second end and defining a second passage therethrough such that the second passage is spaced apart from the channel. | 04-10-2014 |
20140107908 | ENGINE EFFICIENCY SYSTEM FOR A VEHICLE AND METHOD OF OPERATING AN ENGINE EFFICIENCY SYSTEM - An engine efficiency system for a vehicle includes an electromechanically operated oil distribution device disposed proximate an oil environment of the vehicle. Also included is a current detection system for detecting a current change rate of the electromechanically operated oil distribution device, wherein the current change rate corresponds to a viscosity of an oil disposed in the oil environment of the vehicle. Further included is at least one efficiency device activated over a range of the viscosity of the oil. | 04-17-2014 |
20140130493 | TURBOCHARGED MOTOR VEHICLE ENGINE SYSTEM AND METHOD - A turbocharged motor vehicle engine system includes an engine having an intake manifold, an exhaust manifold, and a crankcase ventilation outlet. A turbocharger includes a turbine having an inlet fluidly connected to the exhaust manifold through an exhaust conduit and a turbo compressor having an outlet fluidly connected to the intake manifold through an inlet conduit. The turbo compressor also includes an inlet. A crankcase gas conditioning member includes an inlet section fluidly connected to the crankcase ventilation outlet and an outlet section fluidly connected to the turbo compressor inlet. An idle bypass conduit includes an inlet portion fluidly connected to the outlet section of the crankcase gas conditioning member and an outlet portion fluidly connected to the inlet conduit. The idle bypass conduit is configured and disposed to selectively bypass the turbo charger while the engine is operating at an idle. | 05-15-2014 |
20140137833 | Engine Front Cover with Rotational Support Insert - An engine front cover assembly includes a plastic engine cover. A metal insert is secured within the plastic engine cover and defines a bore configured to receive a rotating engine component. A seal is located in a seal seat defined within the bore of the metal insert and configured to sealingly engage the rotating engine component. The metal insert is overmolded within the plastic engine cover and serves as a datum point to properly locate the seal relative to the rotating engine component. | 05-22-2014 |
20140246002 | POSITIVE CRANKCASE VENTILATION SYSTEM - A positive crankcase ventilation system for an internal combustion engine (ICE) includes an engine crankcase, an intake manifold disposed in downstream gas flow communication with the engine crankcase, an air induction system disposed in upstream gas flow communication with the engine crankcase, and a vacuum pump disposed in gas flow communication between the air induction system and the engine crankcase. Operation of the vacuum pump facilitates air flow from the air induction system to the engine crankcase, and from the engine crankcase to the intake manifold. | 09-04-2014 |
20140251290 | POSITIVE CRANKCASE VENTILATION SYSTEM - An engine assembly includes an engine and an intake assembly. The engine defines a combustion chamber and a crankcase, and the intake assembly includes an intake manifold in fluid communication with the combustion chamber. An air-oil separator is provided with the engine and defines a separator volume, an inlet and an outlet, where each of the inlet and outlet are in fluid communication with the separator volume. The inlet of the air-oil separator is provided in fluid communication with the crankcase, and the outlet of the air-oil separator is provided in fluid communication with the intake manifold. The air-oil separator further includes an interior surface that abuts and surrounds the separator volume, and defines a plurality of depressions, and each depression is respectively configured to retain a respective volume of fluid. | 09-11-2014 |
20140251291 | POSITIVE CRANKCASE VENTILATION SYSTEM FOR A TWO-CYLINDER ENGINE - An engine assembly includes a two-cylinder engine, an intake assembly, and an air-oil separator. The two-cylinder engine defines a first cylinder bore, a first combustion chamber, a second cylinder bore, a second combustion chamber, and a crankcase volume. The engine further includes a first piston disposed within the first cylinder bore, and a second piston disposed within the second cylinder bore. The intake assembly includes an intake manifold in fluid communication with each of the first and second combustion chambers, and the air-oil separator defines a separator volume and in fluid communication with each of the crankcase volume and the intake manifold. A reciprocal, synchronous motion of the first and second pistons is operative to exhale gas from the crankcase volume through the separator volume and into the intake manifold. | 09-11-2014 |
20140277996 | SYSTEM AND METHOD FOR CONTROLLING AIRFLOW THROUGH A VENTILATION SYSTEM OF AN ENGINE WHEN CYLINDERS OF THE ENGINE ARE DEACTIVATED - A system according to the principles of the present disclosure includes an airflow determination module and a cylinder activation module. The airflow determination module determines an amount of airflow through a ventilation system for a crankcase of an engine. The cylinder activation module, when a cylinder of the engine is deactivated while the engine is running, selectively activates the cylinder based on the amount of airflow through the ventilation system. | 09-18-2014 |
20140318493 | TEMPERATURE DEPENDENT FLOW CONTROL FOR COMBUSTION ENGINE PISTON SQUIRTERS - An engine assembly includes an engine block that defines a cylinder bore. A reciprocating piston is disposed in the cylinder bore, and has a first side and a second side. The first side cooperates with the engine block to partially define a combustion chamber, and the second side is opposite the first side. A piston squirter is disposed adjacent to the second side of the piston and configured to expel a received flow of engine oil onto the piston. A thermal fluid valve is disposed in fluid communication with the piston squirter and is configured to selectively restrict the flow of engine oil to the piston squirter in response to a temperature of the engine oil. | 10-30-2014 |