Abstract: A system is provided that includes a compressor section, a turbine section, a first engine and a second engine. The compressor section includes a compressor rotor. The turbine section includes a turbine rotor configured to drive rotation of the compressor rotor. The first engine includes a first engine inlet, a first engine outlet and a first engine combustion zone fluidly coupled with and between the first engine inlet and the first engine outlet. The first engine inlet is fluidly coupled with and downstream of the compressor section. The first engine outlet is fluidly coupled with and upstream of the turbine section. The second engine includes a second engine inlet, a second engine outlet and a second engine combustion zone fluidly coupled with and between the second engine inlet and the second engine outlet. The second engine inlet is fluidly coupled with and downstream of the compressor section.

Abstract: A method for controlling a two-stroke engine operatively connected to a turbocharger, the turbocharger being in fluid communication with the engine to provide a boost pressure thereto. The method includes determining an exhaust temperature representative of an actual temperature of exhaust gas being discharged by the engine; determining a temperature difference between the exhaust temperature and a threshold temperature; in response to the exhaust temperature being less than the corresponding threshold value: determining a corrective amount of boost pressure to add to the boost pressure of the turbocharger, the corrective amount of boost pressure being determined based on the temperature difference; and controlling the turbocharger to increase the boost pressure of the turbocharger by the corrective amount.

Abstract: A method of controlling an exhaust valve arrangement of an internal combustion engine is provided. The exhaust valve arrangement is operable to direct combusted exhaust gas out from a combustion chamber of the internal combustion engine. The exhaust valve arrangement comprises a first exhaust valve and a second exhaust valve. The method includes determining a pressure level in the combustion chamber during compression release braking, comparing the pressure level with a predetermined threshold pressure; and controlling the exhaust valve arrangement to control either a single one, or both, of the first and second exhaust valves to be arranged in an open position during compression release braking in response to the pressure level being below or above the predetermined threshold pressure.

Abstract: The processing device of the control device performs first control of controlling the opening degree of the wastegate valve to an opening degree in which the inner peripheral surface of the insulating portion is positioned on the extension line of the seal surface of the wastegate valve, when the internal combustion engine is started. The processing device determines whether the warm-up of the internal combustion engine is completed. When the warm-up is completed, the processing device ends the first control. Thereafter, the processing device starts second control for controlling the opening degree of the wastegate valve in accordance with the target supercharging pressure of the internal combustion engine. When the warm-up of the internal combustion engine is not completed, the processing device continues the first control. Then, the processing device executes this series of processes again at every predetermined control cycle until the first control ends.

Abstract: A rotary engine, has: an outer body defining a rotor cavity; a rotor within the rotor cavity, the outer body and the rotor defining a combustion chamber; a pilot subchamber defined by the outer body and having an outlet communicating with the rotor cavity; a pilot injector having a pilot tip in communication with the pilot subchamber; a main injector having a tip in communication with the rotor cavity, the main injector having a fuel inlet fluidly connected to a fuel source, a fluid inlet fluidly connected to a fluid source, and an injector outlet in fluid communication with the rotor cavity independently of the pilot subchamber, the main injector having: a fuel-injection configuration in which the main injector connects the fuel source to the combustion chamber vi; and a fluid-injection configuration in which the main injector connects the fluid source to the combustion chamber.

Abstract: A valve train assembly is provided for modifying a lift of at least one intake valve and/or exhaust valve. The valve train assembly includes at least one tappet that is housed in a rocker housing with at least one rocker lever. The at least one tappet is engaged to an actuator that is operable to change the tappet from a first configuration in which all cam lobe motion is imparted to the rocker lever for opening and closing the intake and/or exhaust valve, to a second configuration in which less than all motion of the cam lobe is transferred to the rocker lever.

Abstract: Exhaust systems are described. In examples, an exhaust flow path couples exhaust ports with one or more turbochargers of an engine. The exhaust flow path may have a portion flowing through a cylinder head (e.g., couplable to the exhaust ports) and a portion flowing through an exhaust manifold (couplable to the cylinder head and the turbocharger(s)). The flow paths may be shaped to reduce the sharpness of turns between the exhaust ports and the turbocharger(s). For example, curves along the flow path may be less than 90 degrees or have a minimum curve radius, which may vary along the flow path. Additionally, at least two, independent flow paths may exist between the exhaust ports and the turbocharger(s). The cross-sectional shape of any part of the flow path may be elliptical, including at inlets and outlets.

Abstract: The present invention is a constantly rotating power piston in a ring chamber that is followed by a compression piston, stopping, and restarting. Cams on the power shaft on the inner diameter of the engine, followers and a connecting rod are utilized to adjust the separation between the power piston and compression piston. The proper location of the ring air inlets, the exhausts, the fuel introductions, and the sparks complete the engine.

Abstract: A variable valve device includes a pair of cam housings separated in a predetermined direction, a rocker shaft supported by the pair of cam housings, rocker arms supported by the rocker shaft, a connecting pin disposed in a pin hole of one of the rocker arms, a return pin disposed in a pin hole of another of the rocker arms, a pressing member that causes the connecting pin to push the return pin to the other side, a repulsive member that causes the return pin to push back the connecting pin to one side, and an upper housing supported at both ends by upper surfaces of the pair of cam housings. In the variable valve device, the upper housing is formed with a first accommodation hole in which the pressing member is disposed and a second accommodation hole in which the repulsive member is disposed.

Abstract: A setting unit which is connected to an intake passage and defines a reference value for a pressure in a passage through which gas flows, an accumulating unit which integrates a difference between the reference value and the pressure from a point in time when the pressure falls below the reference value and acquires an cumulative value, and a diagnosis unit which diagnoses an abnormality of the passage based on the cumulative value, wherein when there is no peak in the pressure, the setting unit sets the reference value based on a state of the internal combustion engine, and when there is a peak in the pressure, the setting unit sets the peak as the reference value in the abnormality diagnosis device.

Abstract: A method of operating a system including a hydrogen internal combustion engine and a supercharger between a normal operating mode and an engine braking mode. In the normal operating mode, the supercharger operates at a first rotational speed to deliver air to an intake manifold of the engine. In the engine braking mode, the supercharger operates at a second rotational speed to deliver air to the intake manifold and a restriction is provided to increase a pressure ratio across the supercharger.

Abstract: Regeneration monitoring of a particulate filter in an exhaust gas system of an internal combustion engine of a motor vehicle. Different soot loading stages for the particulate filter are defined. A soot loading of the particulate filter is determined by use of a soot loading model. A soot loading of the particulate filter via a differential pressure measurement across the particulate filter is determined. A regeneration of the particulate filter is initiated when a certain soot loading stage of the particulate filter is reached. A soot discharge from the particulate filter is compared, expected via the soot loading model, to a soot discharge from the particulate filter that is determined via a differential pressure measurement. An error message is outputted when a regeneration stage of the particulate filter, determined by the soot loading model, does not correlate with a regeneration stage that is determined via the differential pressure measurement.

Abstract: A neat-fuel direct-injected compression ignition engine having a thermal barrier coated combustion chamber, an injection port injects fuel that satisfies a stoichiometric condition with respect to the intake air, a mechanical exhaust regenerator transfers energy from exhaust gas to intake compression stages, an exhaust O2 sensor inputs to a feedback control to deliver quantified fuel, a variable valve actuation (VVA) controls valve positions, an exhaust gas temperature sensor controls exhaust feedback by closing the exhaust valve early according to the VVA, or recirculated to the chamber with an exhaust-gas-recirculation (EGR), heat exchanger, and flow path connecting an air intake, a load command input, and a computer operates the EGR from sensors to input exhaust gas according exhaust temperature signals and changes VVA timing, the load control is by chamber exhaust gas, the computer operates a fuel injector to deliver fuel independent of exhaust gas by the O2 signals.

Abstract: An internal combustion engine and method for simultaneously regulating the exhaust gas temperature and the charge pressure of an internal combustion engine. An internal combustion engine that includes: an exhaust gas turbocharger (17) including a turbine (19) that is situated in an exhaust duct (8), and including a compressor (18) that is situated in an intake duct (4); a bypass valve (13) via which at least a portion of an exhaust gas mass flow of the internal combustion engine may be led past the turbine (19); and an exhaust gas flap (15) that is situated in the exhaust duct (8), downstream from the turbine (19) and the bypass valve (13).

Abstract: A latch assembly (500) can comprise a main latch pin assembly (531, 532) comprising a first diameter (D1) on a first main pin face (512, 522), and a secondary latch piston (541, 561) comprising a second diameter (D2) on a secondary piston face (543, 563). The secondary latch piston can be configured to selectively act on the main latching pin assembly. The main latch pin assembly can be biased to oppose the secondary latch piston. The first diameter can be greater than the second diameter. A rocker arm assembly (10) can comprise the latch assembly. A primary arm (100) can be configured to receive the main latch pin assembly. A secondary arm (300) can be configured to receive the secondary latch piston.

Abstract: A rocker arm assembly can include a latch assembly, a primary arm configured to receive the latch assembly, and a secondary arm configured to receive the latch assembly. The secondary arm includes a secondary arm body and a piston support ring. A pivot slot passes through the primary arm, the secondary arm body, and the piston support ring.

Abstract: A valve timing adjustment system includes a valve timing adjustment device, a phase lock mechanism, a hydraulic control valve, an electromagnetic drive section, and an electronic control device. When the lock pin included in the phase lock mechanism and having the tip thereof fitted into a fitting recess is removed from the fitting recess, the electronic control device performs an initial control of applying current to the electromagnetic drive section at a prescribed current value for a prescribed time to move a spool of the hydraulic control valve from an initial position. Thereafter, the electronic control device performs a gradual change control of applying current to the electromagnetic drive section while gradually increasing the current value from a current value smaller than the current value applied in the initial control but greater than 0, to remove the lock pin from the fitting recess.

Abstract: A valvetrain assembly comprising a first body and a second body, wherein the second body comprises a first wall and a second wall. The valvetrain assembly further comprises a first latch pin, wherein the first latch pin is configured to latch the second body to the first body and unlatch the second body from the first body. A portion of the first latch pin is located between the first wall and the second wall. The valvetrain assembly also comprises a movable shaft, wherein the movable shaft is configured to move the first latch pin. The valvetrain assembly comprises an electromagnet, wherein the electromagnet is configured to move the movable shaft.

Abstract: This invention describes an internal continuous combustion rotary engine. It consists of a compressor with air tank storage, fuel pump with fuel pressure tank, combustion chamber with air-fuel feed rate control and spark plug, pneumatic rotary vane motor with output shaft, and mechanical means to drive the compressor from the motor. As the stored pressurized fuel and air fed into the combustion chamber with a spark to initiate combustion, which will generate pressurized combustion gases. Pressurized combustion gases will drive the pneumatic rotary motor, which will then drive the compressor and fuel pump to maintain adequate supply of pressurized air and fuel for continuous operation, and produce mechanical work. The pneumatic motor is a positive displacement, fully sealed, radial vane rotary type motor, with simple reliable inverted crank slider mechanism to drive the vanes in cyclic angular speed ratio in one direction.

Abstract: A vehicle includes an engine, a turbocharger that supercharges intake air to the engine, an exhaust passage connected to the engine, a turbine of the turbocharger being disposed in the exhaust passage, a bypass passage that bypasses the turbine and is connected to the exhaust passage, a waste gate valve that opens and closes the bypass passage; and an abnormality determination device configured to include a determination unit configured to determine an abnormality of the waste gate valve when an operation state of the engine is a supercharging state.