Abstract: A natural gas engine in which natural gas fuel is injected into an intake system passage, diesel fuel serving as an ignition source is injected into a cylinder, and when igniting the natural gas fuel, the natural gas fuel is combusted by compression ignition of the diesel fuel that has been injected into the cylinder without the use of a spark ignition system. The engine has a mechanism that introduces exhaust gas into a cylinder during an intake stroke.

Abstract: Methods and systems are providing for improving zero flow lubrication (ZFL) of a high pressure fuel pump coupled to direct fuel injectors via a direct injection fuel rail. A ZFL transfer function for the fuel pump is learned while fuel is at non-nominal fuel bulk modulus conditions and corrected for variations from a nominal fuel bulk modulus estimate. When zero flow lubrication of the pump is requested, the pump is operated with a duty cycle based on the learned transfer function and an instantaneous estimate of the fuel bulk modulus to compensate for differences in fuel condition from the nominal fuel bulk modulus estimate.

Abstract: A powertrain and an electromechanical apparatus are disclosed. A ring gear is attached to a first distal end of a crankshaft such that the ring gear and the crankshaft are rotatable in unison about a longitudinal axis. A motor-generator includes a motor/generator shaft being rotatable about a first axis spaced from the longitudinal axis. A starter mechanism includes a first starter gear coupleable to the motor/generator shaft and rotatable about a second axis spaced from the longitudinal axis. The first starter gear is movable along the second axis between a first position engaging the ring gear such that torque is transferred from the motor/generator shaft through the first starter gear and the ring gear to the crankshaft to start the engine, and a second position disengaged from the ring gear to rotatably disconnect the starter mechanism from the ring gear.

Abstract: System for checking a combustion engine (1) coupled with an electric generator (2) of a hybrid terrestrial vehicle having at least a drive line (61, 62) driven by at least one electric motor (51, 52); the combustion engine (1) comprising at least one subsystem to be checked; the system further comprising first control means (3) configured to drive the combustion engine (1) at a predefined deterministic operation point, wherein the system comprises second control means able to perform a diagnostic test on the subsystem wherein the first control means (3) are configured to vary the operation conditions of the combustion engine (1) in order to allow the second control means (ECU) to perform the diagnostic test.

Abstract: A cylinder for an internal combustion engine may include a metallic cylinder body and an amorphous diamond-like hard carbon film disposed on an internal peripheral surface of the cylinder body. The amorphous diamond-like carbon film may include a roughness ranging from Rz 0.5 ?m to Rz 4.0 ?m.

Abstract: To provide a combination of a cylinder made of a hypereutectic Al—Si alloy and a hard-carbon-coated piston ring both exhibiting excellent wear resistance, the piston ring is provided with a laminate coating at least on an outer peripheral sliding surface thereof; the laminate coating comprising a metal layer, a metal-containing, hard carbon layer, and a metal-free, hard carbon layer in this order from the substrate side; the laminate coating having Martens' hardness (indentation hardness) HMs of 5-13 GPa, indentation modulus E of 70-200 GPa, and a deformation ratio Rpe of 0.45 or less, which is expressed by a ratio (Wp/We) of plastic deformation energy Wp to elastic deformation energy We; and a ratio (Tmf/Tm) of the thickness Tmf of the metal-free, hard carbon layer to the thickness Tm of the metal-containing, hard carbon layer being 2-8.

Abstract: A tractor-trailer truck engine coolant manifold comprises a first supply port for receiving coolant from an engine or radiator, and a first return port for returning coolant to the engine or radiator. The manifold also has a second supply port in fluid communication with the first supply port, and a second return port in fluid communication with the first return port. Further, the manifold can have a third supply port in fluid communication with the first supply port, and a third return port in fluid communication with the first return port. The coolant manifold can further have one or more internal flow paths that are configured so that coolant flow rate or pressure exiting one supply port is different from the coolant flow rate or pressure exiting from another supply port, pre-selected based upon the thermal requirements of the heat source or heat sink components.

Abstract: A cylinder head for an internal combustion engine is configured to be operated with fuel, such as gaseous or liquid fuel, to provide a more complete combustion of the fuel/air mixture. The cylinder head has at least one fuel guiding section, which includes a fuel inlet valve casing for accommodating a fuel inlet valve configured to control a fuel flow rate, a fuel/air mixing chamber for mixing the fuel with air, and a fuel guiding portion connecting the fuel inlet valve casing to the fuel/air mixture chamber. The fuel guiding portion is integrally formed with the cylinder head and defines at least a first fuel feeding passage and at least a second fuel feeding passage. The first fuel feeding passage and the second fuel feeding passage extend from the fuel inlet valve casing to the fuel/air mixing chamber.

Abstract: The invention relates to a device for controlling the ingress of intake gases to an engine, notably an internal combustion vehicle engine comprising cylinders, said device taking the form of a compartmentalized guide piece (6), each compartment (9) comprising a main duct (4) and a secondary duct (5) for gas, characterized in that the control device comprises a multitude of modules (8) each one delimiting a main duct (4) and a secondary duct (5), and in that the modules (8) constitute separate components designed to be fitted together.

Abstract: A system for controlling a flow rate of air into a vehicle engine compartment, may include a radiator cooling a coolant; a coolant inflow tank provided to one side of the radiator and temporarily storing the coolant that cools an engine; and a coolant exhaust tank provided to another side of the radiator and temporarily storing the coolant circulating past a cooling fin of the radiator from the coolant inflow tank.

Abstract: A single-shaft dual expansion internal combustion engine is described, and includes an engine block including first and second power cylinders and an expander cylinder fluidly coupled through a cylinder head, and first and second power pistons that connect to respective first and second crankpins of the crankshaft. A multi-link connecting rod assembly includes a rigid main arm extending orthogonally to a longitudinal axis of the crankshaft and supporting a first pivot pin, a second pivot pin and a third pivot pin. The first pivot pin connects via a connecting rod to an expander piston reciprocating in the third cylinder. A third crankpin of the crankshaft serves as the second pivot pin and has a throw that is located 180 degrees of rotation of the crankshaft from a throw of the first crankpin. The third pivot pin connects to a swing arm connected to the engine block.

Abstract: A supercharger (15) is provided with a bypass pathway (17). A backflow preventer (20) is provided to the air intake pathway (8) between an airflow meter (10) and the bypass pathway (17). The backflow preventer (20) has: a casing (41) formed by locally expanding the cross-sectional area of the air intake pathway; and an inner tube (42) substantially constructing a duct for the mainstream of air intake. The inner tube (42) is supported by a flange portion (50) and the downstream end (42a) opens within the casing (41). During backflow when the bypass pathway (17) opens, a portion of the intake air enters into an exit-side space section (55), and the flow is prevented by the flange portion (50). Consequently, reverse flow is suppressed.

Abstract: Systems and methods for ventilating crankcase gases in a crankcase ventilation system via crankcase pressure pulsations are disclosed. In one example approach, a method comprises driving flow of crankcase ventilation gases through a crankcase of the engine from a fresh air inlet of the crankcase to an outlet of the crankcase via crankcase pressure pulsations while restricting backflow of crankcase ventilation gases from the outlet to the inlet, where the inlet and outlet are coupled upstream of an intake throttle of the engine.

Abstract: The fuel injection valve (1) for the intermittent injection of fuel into the combustion chamber of an internal combustion engine has a valve housing (12) that defines a longitudinal axis (14) and is provided with a high-pressure chamber (16). The connecting part (20) of the valve housing (12) has two identically formed high-pressure connections (22, 24) for high-pressure fuel lines. The two identically formed high-pressure connections (22, 24) are arranged in a common connecting face (30?) in such a way that said high-pressure connections are oriented in the same direction and the connection axes (22?, 24?) thereof run parallel to each other. In the interior of the valve housing (12), the high-pressure connections (22, 24) are connected to each other and to the high-pressure chamber (16).

Abstract: A cooling system for an industrial vehicle includes one or more heat radiation devices located in a containment. The one or more heat radiation devices may be configured to cool a plurality of components in the industrial vehicle. An air intake device may be configured to create airflow from outside of the industrial vehicle into the containment. The airflow passes through the one or more heat radiation devices. The cooling system may further include a control device operatively connected to the containment. The control device may be configured to selectively direct at least a portion of the airflow to the plurality of components in the industrial vehicle after the airflow passes through the one or more heat radiation devices.

Abstract: A method and system is provided for regenerating and cleaning an air-oil coalescer of a crankcase ventilation system of an internal combustion engine generating blowby gas in a crankcase. The coalescer coalesces oil from the blowby gas. The method and system includes regenerating and cleaning the coalescer by intermittent rotation thereof.

Abstract: An internal combustion engine with adjustable compression ratio with a connecting rod bearing eye for connecting to a piston of at least one cylinder and an eccentrical element adjustment device for adjusting an effective connecting rod length, and wherein the eccentrical element adjustment device includes an eccentrical element cooperating with an eccentrical element lever and eccentrical element rods engaging the eccentrical element lever, wherein the eccentrical element rods are loaded with a hydraulic pressure that is provided in hydraulic cavities interacting with the eccentrical element rods, wherein the eccentrical element lever includes at least one eccentrical element lever segment, wherein the at least one eccentrical element lever segment is positioned in axial direction of the eccentrical element in front and/or behind the connecting rod bearing eye, and wherein the at least one eccentrical element lever segment is fixated at the eccentrical element.

Abstract: A connecting rod (10) has a big end bearing eye (11) for connection to a crankshaft, a small end bearing eye (12) for connection to a piston of a cylinder, and an eccentric adjustment device (13) for adjusting an effective connecting rod length. The eccentric adjustment device (13) has an eccentric (36) that interacts with an eccentric lever (14), and eccentric rods (15, 16) that the eccentric lever (14). The eccentric lever (14) has segments (38, 39) positioned axially in front of and behind the small end bearing eye (12). Each eccentric lever segment (38, 39) is connected to the eccentric (36) for conjoint rotation. Each eccentric lever segment (38, 39), end faces (43, 44) of the small end bearing eye (10) adjacent the respective eccentric lever segment (38, 39), and adjacent end faces (45, 46) of the eccentric (36) have a beveled contours.

Abstract: An air intake adjusting system for a motor vehicle includes a plurality of struts which are arranged at distances from one another and can each be rotated about an axis of rotation such that, in a first position of the struts, the air intake adjusting system is open and, in a second position of the struts, the air intake adjusting system is closed. The struts each have a rotating section, through which the axis of rotation of the respective strut extends, and a flap section, which extends from the rotating section and, in the second position, rests against the rotating section of an adjacent strut. The rotating sections of the struts each have a first side and a second side which, when the struts are in the second position, converge against an intended approach flow direction of the air intake adjusting system such that they form an approach flow edge.

Abstract: A fuel delivery module for a vehicle having a fuel tank. The fuel delivery module comprises a flange, a reservoir, a fuel pump, a guide rod, a guide rod receiver, and an elastically deformable member. The flange couples to an opening of the fuel tank. The reservoir is in fluid communication with the flange and a fuel pump connected to the reservoir transports fuel from inside the fuel tank to outside the fuel tank through the flange. The guide rod is coupled to the flange at a first end of the guide rod and the guide rod receiver is fixedly disposed on the reservoir. The elastically deformable member is moveably coupled to the guide rod and to the reservoir such that a second end of the guide rod is selectively receivable in the guide rod receiver.