Abstract: A combustion machine comprising an internal combustion engine and a cooling system that has a coolant pump, a main cooler, a heating heat exchanger, a bypass which bypasses the heating heat exchanger, coolant ducts in the internal combustion engine, and a regulating device with an actuator which serves for the regulated distribution of a coolant as a function of at least one local coolant temperature. The invention is characterized in that, when the actuator is actuated in one direction, the regulating device—when it is in a first position, allows coolant flow through the internal combustion engine and the heating heat exchanger, and prevents coolant from flowing through the bypass and the main cooler;—when it is in a second position, additionally allows coolant to flow through the bypass; and—when it is in a third position, additionally allows coolant to flow through the main cooler.

Abstract: A cooling shroud assembly for an engine is disclosed. This cooling shroud assembly includes a shroud body. There is an inlet door or flap to an interior of this shroud body, along with an outlet door or flap from this shroud body. When installed on an engine that is incorporated by a moving vehicle (e.g., aircraft, unmanned aerial vehicle, radio-controlled aircraft, watercraft), airflow through the shroud body from an inlet to an outlet. The position of the inlet and outlet doors may be adjusted (e.g., simultaneously) to change the airflow through the shroud body, and to thereby change the dissipation of heat from the operating engine via this airflow.

Abstract: An internal combustion engine, especially a diesel internal combustion engine, having at least one intercooler, at least one control unit, at least a first and a second cooling circuit, whereby the cooler of the first cooling circuit is flow-connected to a cooling circuit of the internal combustion engine, while the cooler of the second cooling circuit of the internal combustion engine is flow-connected to the intercooler.

Abstract: A blade portion of a vane is assembled to a platform portion by insertion into a cavity in the latter, in a lateral direction from an opening in the cavity, where the cavity possesses a back wall over at least a portion of its surface area. The bonding surface area between the portions of the vane is increased. The back wall of the cavity includes an inclined portion against which the portion of the blade makes contact at the end of its insertion movement, ensuring surface contact which is favorable to achieving an increased bonding area.

Abstract: According to some embodiments, a start-stop system for a vehicle is disclosed. The start-stop system includes a first energy storage device coupled to a starter motor. The start-stop system also includes a first DC-to-AC inverter coupled to the first energy storage device, a starter/alternator coupled to the first DC-to-AC inverter, and a second DC-to-AC inverter coupled to the starter/alternator. The start-stop system further includes a second energy storage device coupled to the second DC-to-AC inverter. The start-stop system finally includes a controller configured to control the two DC-to-AC inverters such that either the starter motor or starter/alternator starts the vehicle based on the state of charge of the second energy storage device.

Abstract: A fuel injection system for an internal combustion engine includes an injector having a first orifice to which is tightly connected a pipe having a matching first orifice. Both orifices are surrounded with peripheral smooth surfaces that are complementary surfaces sealingly pressed against each other by a clamping plate.

Abstract: The present disclosure provides an engine cooling system having a coolant temperature sensor, including a radiator disposed to release heat of coolant circulated in an engine; a coolant control valve unit controlling the coolant circulated in the radiator through opening rate of a valve having a coolant passage corresponding to the radiator; a second coolant temperature sensor sensing a coolant temperature at a coolant outlet side of the engine; a third coolant temperature sensor sensing the coolant temperature at the coolant outlet side of the radiator; and a control unit sensing second and third coolant temperatures through the second and third coolant temperature sensors, calculating a first coolant temperature at a coolant inlet side of the engine by calculating the second and third coolant temperatures, and calculating valve opening rate of the coolant control vale by using the first, second, and the third coolant temperature.

Abstract: A compression-ignited, opposed-piston engine equipped for multi-fuel operation includes at least one cylinder, a pair of pistons slidably disposed in the cylinder for opposing movement between respective bottom and fop center locations, and spaced-apart intake and exhaust ports near respective ends of the cylinder. The pistons include end surfaces constructed to form a shaped combustion chamber when the pistons are near top center locations during a compression stroke of the engine. At least one gaseous fuel injector communicates with the bore of the cylinder through an injector site in the cylinder between the intake port and the exhaust port. At least one liquid fuel injector communicates with the bore through an injector site in the cylinder.

Abstract: A variable compression ratio engine includes: a piston; a piston bar which is connected to the piston; a first connecting link which is connected to the piston bar through a first joint; a main body which is connected to the first connecting link through a second joint and includes a third joint and a fourth joint; a crank shaft which includes a fifth joint; a second connecting link which is connected to the main body through the fourth joint and connected to the crank shaft through the fifth joint to rotate the crank shaft; and a control link which is connected to the main body through the third joint and selectively changes a position of the third joint.

Abstract: Turbine systems comprising at least one blade that (i) has a pocket to receive wind and (ii) a closed edge that cuts through the wind with greater efficiency are disclosed. The blades can be stacked along a central hub to increase the effective area of the turbine blade system. When stacked, the blades are spaced apart in an amount sufficient to allow wind to pass between the blades as the closed edge of the blade cuts through the wind thereby decreasing wind resistance.

Abstract: The invention relates to an electromagnetically actuable intake valve for a high-pressure pump of a fuel injection system, in particular of a common-rail injection system, comprising a reciprocating valve closure element (2) that engages with a valve seat (1) and is loaded in the closing direction by the spring force of a valve spring (3) which is supported on a spring plate (4) connected to the valve closure element (2), further comprising a reciprocating armature (6) that engages with an electromagnet (5) and is loaded in the direction of the valve closure element (2) by the spring force of an armature spring (7) which is larger than that of the valve spring (3). According to the invention, the spring plate (4) has a first abutment face (9) for limiting the opening travel of the valve closure element (2) and a second abutment face (10) for mechanically coupling to the armature (6). The invention also relates to a high-pressure pump having such an intake valve.

Abstract: The internal combustion engine comprises: operating members and operating by a predetermined pressure or more of oil pressure; a hydraulic oil path supplying hydraulic oil to the operating members through crank journals; a lubricating oil path supplying lubricating oil to crankpins through the crank journals; a hydraulic control valve linearly controlling an oil pressure supplied to the operating members due to change of that opening degree; and a control device. The control device controls the opening degree of the hydraulic control valve so that when operating the operating members, the predetermined pressure or more of oil pressure is supplied to the operating members, and controls the opening degree of the hydraulic control valve so that when not operating the operating members, less than the predetermined pressure of oil pressure is supplied to the operating members.

Abstract: A post injection is utilized in a more effective manner. In an internal combustion engine which is provided with a fuel injection valve for injecting fuel into a cylinder of the internal combustion engine, in cases where a post injection is carried out after a main injection of fuel from the fuel injection valve, when a rotation speed of the internal combustion engine is equal to or more than a first predetermined speed, a penetration force of fuel in the post injection is made larger than a penetration force of fuel in the main injection, whereas when the rotation speed of the internal combustion engine is less than a second predetermined speed which is equal to or less than the first predetermined speed, the penetration force of fuel in the post injection is made smaller than the penetration force of fuel in the main injection.

Abstract: Methods and systems are provided for a noise attenuation device. In one example, a system may include a noise attenuation device located downstream of a throttle body with a height less than or equal to a difference in radiuses between a bore of the throttle body and an intake passage.

Abstract: A method to control a four-stroke combustion engine, comprising at least one cylinder; a piston arranged in each cylinder; at least one inlet valve arranged in each cylinder which is connected with an inlet system; at least one first camshaft which controls each inlet valve; at least one exhaust valve arranged in each cylinder which is connected with an exhaust system; at least one second camshaft which controls each exhaust valve; and a crankshaft which controls each camshaft. At least one phase-shifting device is arranged between the crankshaft and the second camshaft, to phase-shift the second camshaft in relation to the crankshaft to a state, where the exhaust valve is controlled in such a way, that it is opened during the expansion stroke of the engine and closed during the exhaust stroke of the engine, to achieve engine braking through compression in the cylinders during the exhaust stroke.

Abstract: An air-to-air charge air cooler for cooling air supplied to an internal combustion engine includes a tube assembly including a plurality of tubes extending in a longitudinal direction. The plurality of tubes is arranged adjacent to one another. Each of the plurality of tubes includes an inlet to receive airflow and an outlet to output airflow. A turbulator is arranged in at least one of the plurality of tubes, the turbulator having a pitch defined in a direction transverse to airflow through the tube. The pitch varies in at least one of a longitudinal direction and a transverse direction of the tube.

Abstract: A piston for an internal combustion engine includes a piston crown having a combustion bowl formed therein, a piston rim extending circumferentially around the combustion bowl and a heat-dissipating chamfer between the combustion bowl and the piston rim. The chamfer is structured by way of at least one of size, angle, or material thickness to an oil gallery to balance heat dissipation with combustion properties. Related methodology is disclosed.

Abstract: A very low water (VLW) heat transfer fluid, having an atmospheric boiling point of about 148° C. (about 300° F.) and a low temperature operating limit (LTOL) of ?40° C., or below, comprised of one or more polyhydric alcohols, one or more corrosion inhibitors, and between 5% and 10% water. The heat transfer fluid retains many of the features of a non-aqueous heat transfer fluid, while providing a substantially lower viscosity. The heat transfer fluid is suitable for use in internal combustion engines as an engine coolant and in other heat transfer applications.

Abstract: A control system of an engine is provided. The control system includes an exhaust variable valve mechanism for changing an operation mode of an exhaust valve, a fuel injection controlling module for controlling a fuel injector to inject fuel at a fuel injection timing associated with an operating state of the engine, a variable valve mechanism controlling module for operating the exhaust valve via the exhaust variable valve mechanism in a first operation mode when the operating state of the engine is within a compression self-ignition range, and in a second operation mode when the operating state of the engine is within a spark-ignition range, and a first in-cylinder state quantity estimating module for estimating a first state quantity inside the cylinder relating to a burned gas amount within the cylinder.

Abstract: The present disclosure provides an engine cooling system having a coolant temperature sensor to sense the temperature of coolant discharged from an engine; a radiator radiating heat while part of the coolant discharged from the engine is passed through the radiator; a coolant control valve unit to control coolant passing through the radiator and coolant supplied from the engine; and a control unit configured to control the temperature of coolant by controlling the coolant control valve unit according to the coolant temperature sensed by the coolant temperature sensor, wherein the control unit calculates a coolant temperature at an entrance of the engine using the sensed coolant temperature and a heat rejection rate of the engine based on the operation condition, calculates a temperature of coolant discharged from the radiator, and controls the opening degree of the coolant control valve unit using the coolant temperatures.