Abstract: A heat exchanger includes a heat exchanger body arranged along an axis and having an external surface in contact with a surrounding first fluid. The body defines a first fluid passage centered on and extending along the axis. The body also defines a second fluid passage extending parallel with respect to the axis and spaced away from the axis by a second passage distance, and a third fluid passage extending parallel with respect to the axis and spaced away from the axis by a third passage distance. The first, second, and third passages are parallel to one another, while the third passage distance is greater than the second passage distance. Each of the first and third passages is configured to accept a flow of a second fluid and the second fluid passage is configured to hold a volume of air to thermally insulate the first passage from the third passage.

Abstract: An oil supply device for an internal combustion engine includes: a variable displacement pump (1) that varies a discharge pressure at which oil is discharged; an oil passage (2) through which the oil discharged from the pump (1) flows; an oil filter (3) and an oil cooler (4) each of which is arranged in the oil passage (2); a bypass passage (5) connected to the oil passage (2) and bypassing the oil cooler (4); and a bypass valve (6) that opens and closes the bypass passage (5) according to a pressure of the oil. The bypass valve (6) is operated to control the flow of the oil through the oil cooler 4 as the discharge pressure of the pump (1) is adjusted according to operating conditions of the internal combustion engine.

Abstract: One exemplary embodiment is a system comprising a dual-fuel engine structured to selectably combust a first fuel type and a second fuel type, and an electronic control system in operative communication with the dual-fuel engine. The electronic control system is structured to control a transition of the dual-fuel engine from a dual-fuel mode to a single-fuel mode. After initiating the transition from the dual-fuel mode to the single-fuel mode, the control system stops provision of the second fuel type, requires combustion using control parameters configured for the dual-fuel mode until a transition ventilation condition is satisfied, permits non-emergency commanded engine shutdown only if the transition ventilation condition is satisfied.

Abstract: A motor engine having an oxygen sensor is provided, including: a cylinder head, including a main body and a protruding tube protruding outwardly from the main body, the main body including a first end portion, a second end, and a combustion chamber, the protruding tube having a protrusive receptacle protruding outwardly therefrom, the main body defining an axial direction; an exhaust passage, communicated with the combustion chamber and the protruding tube; an oxygen sensor, inserted into the protrusive receptacle, including a sensing portion which is inserted into the exhaust passage; wherein as viewed in a lateral direction of the cylinder head, two surfaces of the main body along the axial direction disposed on two opposite sides defines two boundary lines, the oxygen sensor and the main body are in an overlapping arrangement and does not protrude out of the two boundary lines.

Abstract: A lubricant additive dispensing system includes a cartridge defining an inner cavity to house at least one additive material section and a release opening in communication with a lubrication circulation system of a machine. The lubricant additive dispensing system also includes a spring element arranged to bias the at least one additive material section towards the release opening and a release lever arranged to selectively retain the at least one additive material sections within the cartridge. The lubricant additive dispensing system further includes an actuator coupled to the release lever wherein actuation of the release lever ejects a next one of the at least one additive material sections into the lubrication circulation system.

Abstract: A hybrid intercooler system is provided to adjust an oil temperature. The system includes an air cooling unit that exchanges heat with external air passing through outer surfaces of a plurality of compressed intake air channels and cools compressed intake air passing through interiors of the compressed intake air channels. A water cooling unit exchanges heat between engine cooling water enclosing the outer surfaces of the compressed intake air channels and the compressed intake air passing through the interiors of the compressed intake air channels and cools the compressed intake air. Additionally, an oil temperature controller exchanges heat between oil and the engine cooling water that is heated by the heat exchange performed by the water cooling unit and adjusts the temperature of the oil.

Abstract: An opposed-piston engine contains opposed pistons wherein each piston has a piston face containing a recess. The recesses formed in the piston faces define a combustion chamber when contained within a cylinder. An ignition system is at least partially contained within the combustion chamber to enhance the combustion efficiency of a fuel-air mixture within the combustion system.

Abstract: A fuel supply system for an internal combustion engine may include a plurality of fuel injection pumps, each fuel injection pump being configured to pressurize fuel and provide the pressurized fuel to an associated fuel injector. The fuel supply system may further include a low-pressure fuel supply line fluidly connected to the plurality of fuel injection pumps and configured to provide fuel from a fuel supply tank to the plurality of fuel injection pumps. The fuel supply system may still further include a low-pressure fuel return line fluidly connected to the plurality of fuel injection pumps and configured to return remaining fuel from the plurality of fuel injection pumps to the fuel supply tank. The fuel supply system may include a first fuel cut-off valve disposed in the low-pressure fuel supply line and configured to stop a flow of fuel from the fuel supply tank to the plurality of fuel injection pumps.

Abstract: A thermal energy storage system for a vehicle. The system includes a tank that is external to the vehicle. The tank is configured to receive liquid from the vehicle, and store the liquid at or above a predetermined temperature prior to the liquid being returned to the vehicle.

Abstract: A method for protecting personnel working in a wind turbine nacelle or hub includes monitoring a nacelle roof hatch and a hub access hatch, each hatch having a switch configured therewith. When at least one of the hatches is detected as opened, a control system detects if a rotor lock has been engaged. If the rotor lock has not been engaged, the control system triggers a rotor brake to stop rotor and drivetrain component rotational movement and actuates a first control lockout between the respective switch configured with the open hatch and the rotor brake. The control system also initiates a control lockout that prevents release of the rotor brake until the switch indicates that the open hatch has been closed and the first control lockout has been reset.

Abstract: A fuel injection controller is applied to a fuel injector injecting fuel to be combusted in an internal combustion engine by an open-valve operation of the valve body according to an electromagnetic suction force generated by an energization of a coil. The fuel injection controller controls an injection state of the fuel injector by controlling a coil current flowing through the coil. The fuel injection controller includes an increasing control portion which increases the coil current to a first target value, a holding control portion which holds the coil current increased by the increasing control portion to the first target value, and a changing portion which changes the first target value according to the operation state of the internal combustion engine.

Abstract: Systems and methods are provided for controlling a power plant during use of a power take-off (PTO) device, wherein the responsiveness and stability of the controller are adjustable by an operator in the field. The use of setting maps allows fine tuning of controller responsiveness while also ensuring that expected performance would be achieved at any setting within the setting map. In some embodiments, a proportional-integral-derivative (PID) controller is used to control engine speed, and gains for the proportional, integral, and derivative terms are obtained from setting maps based on a responsiveness setting chosen by a vehicle operator.

Abstract: A method and a device for controlling the engine braking operation in internal combustion engines for motor vehicles, wherein the internal combustion engine is operated with direct injection of fuel and a controllable brake flap is provided in the exhaust gas system for retaining exhaust gases in the engine braking operation, and moreover has an exhaust gas recirculation device having an EGR valve that is arranged upstream of the brake flap and a recirculation line that connects the exhaust gas system to the intake system of the internal combustion engine and during the driving operation controls a defined quantity of recirculated exhaust gas with respect to the combustion air. To avoid critical excessive temperatures at the injection valves, in the engine braking operation (MB), the EGR valve (13) is more or less opened in dependence upon operating parameters (n, TE) of the internal combustion engine (1).

Abstract: An engine and a method of forming an engine are provided. The engine has a block that defines a cooling jacket extending continuously about an outer perimeter of first and second siamesed cylinders. The block defines a series of head bolt bores intersecting a deck face such that each cylinder is surrounded by four bores. The jacket has a first floor and a second floor. The second floor is offset above the first floor and extends along an intake side of the block between midpoints of the first and second cylinders, respectively. The second floor is configured to decouple a relationship between the cooling jacket and the series of bores for each cylinder and reduce fourth order bore distortion for each cylinder.

Abstract: Methods and systems are provided for cooling charge air in a hybrid engine. In one example, a method may include cooling charge air by a combination of air-to-air and air-to-coolant heat transfer with assistance from a chiller arranged in the coolant circuit. The coolant circuit includes an insert coupled to a charge air cooler allowing heat exchange via conduction and convection.

Abstract: The present invention provides an oil separator that can improve oil separation performance with a simple structure. An oil separator includes a casing that has an inlet and an outlet and the oil separator is configured to separate oil contained in blow-by gas in the casing. The casing includes therein multiple staggered partition walls to form a gas passage through which the blow-by gas flows in a meandering manner in a horizontal direction from the inlet to the outlet, and a filter element that partially closes the gas passage and crosses the partition walls.

Abstract: A vehicle component includes a surface that is configured to contact a fuel containing ethanol and zinc ions. A sacrificial carbon layer is disposed on the surface. The sacrificial carbon layer has a thickness of greater than or equal to about 250 nm to less than or equal to about 5 ?m. The sacrificial carbon layer includes carbon that is configured to complex and solubilize ZnO deposited on the surface, wherein the ZnO forms from the zinc ions carried by the fuel.

Abstract: An internal combustion engine or other internal pressure driven engine of the type capable of converting reciprocal linear powered motion into unidirectional rotary motion, the engine having at least one pair of first and second cylinders with each cylinder having a pair of opposed pistons therein forming a pressure chamber therebetween. Outer ends of each piston carries a piston rod connected to a pivot arm of a respective one way clutch which causes the clutch to oscillate back and forth when the piston moves in and out due to pressure or combustion in the pressure chamber. Alternatively, the piston rods may be configured as gear racks in direct operative engagement with pinion gears of the one way clutches. The clutches are parallel and spaced apart from each other near each end of the cylinders. Each clutch carries a gear on one end which intermeshes with a gear rack assembly having gears and a gear rack which drives a crankshaft and auxiliary flywheel operatively connected to a starter.

Abstract: A cylinder block includes: a plurality of cylinders; a water jacket through which a coolant flows along an outer periphery of the plurality of cylinders; and insertion members which are inserted into the water jacket formed at both sides of the plurality of cylinders in order to separately cool upper and lower portions of the plurality of cylinders, in which the insertion members restrict a flow of the coolant at a lower side of the water jacket and generate a flow of the coolant at an upper side of the water jacket.

Abstract: A compressor may include a compressor housing integrally provided with a compressor wheel inlet having a surge slit and a choking slit that are sequentially formed along an axial direction of a compressor wheel; a sleeve provided to surround an outer surface of the compressor wheel inlet at an end portion thereof, and linearly moving along the axial direction of the compressor wheel while guiding gas flowing into the compressor wheel; a guide slit provided on the sleeve, and communicating with one of the surge slit and the choking slit in accordance with axial linear movement of the sleeve; and a plurality of vanes provided at a position between an outer circumferential surface of the sleeve and the compressor housing, and configured to change a direction of gas flowing through the surge slit or the choking slit in response to linear displacement of the sleeve.