Abstract: A modular structure is provided. The modular structure may be detachably mounted on an engine enclosure. The modular structure includes a first section and a second section. The first section is configured to house at least one of an aftertreatment module and a muffler module. The second section is configured to house an air cleaner module. At least one of the first section and the second section is configured to be detachable from the engine enclosure to provide access to an engine within the engine enclosure.

Abstract: An internal combustion engine includes a cooling system having a coolant delivery matrix, such as for providing a two phase (vapour) cooling system for the engine. The coolant delivery matrix is configured for location in a cylinder block of an engine housing of the internal combustion engine. The coolant delivery matrix includes a manifold and a plurality of pipes extending from the manifold. The coolant delivery matrix is further configured to locate around at least one cylinder in the cylinder block, and each of the plurality of pipes has at least one aperture being directed to spray liquid coolant at a wall of the at least one cylinder.

Abstract: An exemplary engine assembly includes a crankshaft, and a camshaft having cam lobes mounted thereon. The cam lobes are configured to provide lift to respective devices as a function of a rotation of the camshaft. The cam lobes are circumferentially offset from one another such that a timing of operation of the lift is different for each of the at least two cam lobes. The assembly includes at least one roller bearing coupled to the camshaft, and an electric cam phaser configured to alter the timing of the camshaft with respect to the crankshaft as a function of engine operation.

Abstract: An internal combustion engine having an anodic oxidation coating formed on at least a part of a wall surface that faces a combustion chamber, wherein the anodic oxidation coating has voids and nano-holes smaller than the voids; at least part of the voids are sealed with a sealant derived by converting a sealing agent; and at least a part of the nano-holes are not sealed.

Abstract: Method for determining a starting time of a regeneration process of a particle filter which is connected into the exhaust train of an internal combustion engine, in particular of a diesel engine, wherein the data of an air mass flow rate meter, of an exhaust gas temperature sensor and of a differential pressure sensor are fed to a control unit and the control unit starts the regeneration on the basis of the data by means of the comparison with characteristic diagrams.

Abstract: The present invention provides a method of producing a common rail having a common rail body and a holder which include chemical components of 0.01-0.3 mass % of C, 0.01-0.5 mass % of Si, 0.01-3.0 mass % of Mn, 0.0003-0.01 mass % of B, 0.001-0.01 mass % of N, over 0.01-0.5 mass % of Al, 0.01-0.05 mass % of Ti, P limited to 0.03 mass % or less, S limited to 0.01 mass % or less, O limited to 0.01 mass % or less, a total content of As, Sn, Sb, Pb, and Zn limited to 0.015 mass % or less, the balance including Fe and inevitable impurities, in which the TLB value is 0.001% or more, the method including: inserting an insert metal; performing liquid phase diffusion bonding; performing laser-peening; and removing a surface layer.

Abstract: A method for processing a cylinder block is disclosed, wherein a protrusion protruding toward a crankcase is provided at a crankcase-side edge of a cylinder bore and a sprayed coating is formed on an inner surface of the cylinder bore and an inner surface of the protrusion continuous with the inner surface of the cylinder bore. After forming the sprayed coating, at least part of the protrusion is removed together with the sprayed coating formed on the inner surface of the protrusion. Accordingly, even in the case of removing the edge portion of the cylinder bore on the crankcase side, a sufficient margin to be removed can be ensured while a reduction in size of the cylinder block is achieved.

Abstract: A system for lubricating an engine is disclosed. In one example, the system includes an oil purging passage in fluidic communication with an oil gallery within an engine block. The system may provide for reduced engine degradation related to debris that may be found in engine oil.

Abstract: A disclosed gear assembly support for a gas turbine engine includes a first portion configured for attachment to a case of the gas turbine engine and a second portion configured for supporting a gear assembly. The support further includes a snap portion defining a fit within the case. The snap portion includes a tunable feature for adjusting a fit within the case. A torque reacting portion of the support transfers torque from the second portion to the first portion separate from the snap portion and include separately tunable features fore adjusting the snap fit independent of the torque transfer portions.

Abstract: A variable timing apparatus, for an internal combustion diesel engine equipped with a conventional mechanical fuel injection pump, includes a tubular extender having a front flange bolted to the normal injection pump mount and a rear mounting flange bolted to the injector pump. The tubular extender houses a timing drive shaft has a first end directly coupled to the engine's timing drive and a second free end equipped with a plurality of helical splines. The injection pump drive is equipped with straight splines. A spring-biased, slidable coupler, having a front end equipped with helical splines and a rear end equipped with straight splines, couples the timing drive shaft to the injection pump drive. After engine startup, oil pressure moves the sliding coupler axially rearward approximately 1.0 cm. As the slidable coupler travels axially rearward, it rotates and advances the injection timing by approximately 25 degrees.

Abstract: A method of establishing a boundary for a material improvement process on a workpiece is disclosed. The method may include identifying a maximum allowable damage depth on the workpiece; identifying a maximum constant thickness line on the workpiece at an extent of the maximum allowable damage depth; identifying a peak vibratory stress gradient on the workpiece; identifying a peak combined engine stress on the workpiece; and specifying the boundary for the material improvement process on the workpiece relative to the maximum constant thickness line, peak vibratory stress gradient, and peak combined engine stress.

Abstract: A method of constructing a bedplate assembly for retention of a crankshaft in an internal combustion engine having an engine block includes forming a bedplate insert in a first pattern tool. The bedplate insert is defined by a height, a width, and a thickness. The bedplate insert also includes a shape having a variation in the width along the height. The method also includes arranging the formed bedplate insert in a second pattern tool. The method additionally includes forming in the second pattern tool a bedplate frame around the formed bedplate insert to generate the bedplate assembly. During forming of the bedplate frame, the variation in the width of the bedplate insert generates an internal rib in the bedplate frame that is configured to fix and retain the bedplate insert inside the bedplate frame and decrease deflection of the bedplate frame under crankshaft loads during operation of the engine.

Abstract: An engine assembly includes an engine block defining a first cylinder bore, a second cylinder bore directly adjacent to the first cylinder bore and a third cylinder bore directly adjacent to the second cylinder bore. The engine block defines a first distance from a diametrical center of the first cylinder bore to a diametrical center of the second cylinder bore and defines a second distance from the diametrical center of the second cylinder bore to a diametrical center of the third cylinder bore. The first distance is different than the second distance.

Abstract: A self-centering seal for a counterbore with an inner passageway and a counterbore diameter defining a recessed area is described. The self-centering seal includes an annular shape including an aperture defined by an inner diameter matched to the diameter of the inner passageway, a circular outer edge having an outer diameter less than the counterbore diameter, a sealing surface at least partially disposed between the inner diameter and the circular outer edge, and a plurality of centering tabs projecting form the outer edge. The self-centering seal may, for example, be used in engine manufacture in conjunction with counterbores and inserts around fluid passages.

Abstract: A camshaft may include a shaft with journals that have outer surfaces with a common outer diameter for carrying cages and roller bearings, such as low-friction needle roller bearings, to provide a uniform rolling speed of the rolling members axially along the camshaft.

Abstract: A soluble and substantially ring-shaped casting core may include a cooling channel in a piston having at least one inflow and at least one outflow. The casting core may form a closed ring and the inflow may be arranged directly adjacent to the outflow. The casting core may have a cross-sectional taper for forming a choke in the circumferential direction between the inflow and the outflow.

Abstract: Static mixer for the treatment of exhaust gases, including an annular support portion and a plurality of substantially coplanar radial vanes that are arranged radially with their rear portions or bases associated with the support portion and the front portions or radial tips converging towards the centre of the mixer, wherein the body of the vanes includes at least three lines of bending, which define respective portions arranged on non parallel planes and defining corresponding impact surfaces for the exhaust gases.

Abstract: An oil distribution system for a vehicle diesel engine having a replacement oil cooler block which directs oil to a remote oil filter block. Filtered oil is routed across the supply passage of a thermostat to an oil-to-air oil cooler. Oil from the cooler is directed via a return passage to the oil cooler block for distribution to the engine. The thermostat will bypass oil directly to the return passage when the oil temperature is below a preset level. The system may be an OEM system or a retrofit modification to existing engines. The system may include multiple oil-to-air heat exchangers and may be adapted to retain existing components such as a stock oil-to-coolant oil cooler.

Abstract: The invention relates to a corona ignition device for igniting fuel in a combustion chamber of an engine by means of a corona discharge, comprising an insulator, a center electrode, which plugs into the insulator and carries an ignition head having a plurality of ignition tips, a coil, which is connected to the center electrode, and a housing, which surrounds the coil and into which the insulator plugs, wherein the ignition head has main body formed from sheet metal. In accordance with the invention, the ignition tips consist of a different material compared to the main body and are fastened to a side face of the main body. The invention also relates to an ignition head for such a corona ignition device and to a method for production thereof.

Abstract: Systems and methods for mounting a timing belt pulley to a crankshaft can include a crankshaft rotatable about a center longitudinal axis, the crankshaft including a pin assembly configured for connection to a reciprocating piston. A timing belt pulley can be positioned against the pin assembly and configured for engaging the pin assembly such that the timing belt pulley is coupled to the crankshaft for rotation about the center longitudinal axis. For example, the pin assembly can include a slot formed on an exterior surface thereof, and the timing belt pulley can include a key extending towards the pin assembly and configured for engaging the slot.

Abstract: A regeneration system includes a housing defining an exhaust flow path. An inlet of the housing is configured to receive an exhaust flow from the internal combustion engine and an outlet of the housing is configured to direct the exhaust flow toward an exhaust aftertreatment component. A combustion head is coupled with the housing and configured to direct air and fuel to a combustion chamber in fluid communication with the exhaust flow path. A fuel supply passage is defined by the combustion head and is in fluid communication with the combustion chamber. The regeneration system also includes a valve and filter assembly disposed within the fuel supply passage. The valve and filter assembly includes an assembly housing defining a reduced fuel supply passage, a filter material coupled with the assembly housing, and a check valve at least partially disposed within the reduced fuel supply passage.

Abstract: The invention relates to a method for the assembly of a balance shaft unit for use in motor vehicles. The assembly includes a housing having a bearing section, a rotating component and at least one rolling element bearing for the axially fixed journaling of the rotating component in the bearing section of the housing. The rolling element bearing has a first ring section associated with the rotating component and a second ring section associated with the bearing section. First, the rolling element bearing is axially fixedly installed on the rotating component or in the bearing section. Next, the rotating component is cooled and/or the housing part is heated. Finally, the rotating component is introduced into the bearing section and is held until a temperature compensation has taken place between the rotating component and the housing such that a shrink-fit connection is established.

Abstract: Method for manufacturing a crankcase of a piston compressor, wherein the piston compressor is provided with a crankcase which is provided with recesses for therein receiving cylinders and with at least an inlet opening, wherein from a flat sheet at least one substantially rectangular body blank is manufactured provided with the desired cylinder receiving recesses, wherein the body blank is then angle bent in an angle bending machine for forming a body part having a limited number of folds, wherein at least two substantially flat end walls are manufactured from a flat sheet, wherein thereupon the at least one body part and the at least two end walls are positioned with respect to each other using a positioning tool and are connected with each other with a welding robot for forming the crankcase. Also disclosed is a crankcase obtained with the method, and a piston compressor provided with such a crankcase.

Abstract: A disclosed hanger assembly for supporting a liner within a gas turbine engine exhaust nozzle includes a first mount for attachment to a case and a second mount for attachment to the liner. A u-joint assembly is attached between the first and second mounts and includes a first yoke and a second yoke aligned transverse to the first yoke. A pivot block is includes a first set of pins received by the first yoke and a second set of pins received by the second yoke. The u-joint assembly accommodates relative movement between the liner and case.

Abstract: A method for top-loaded assembly of an internal combustion engine includes providing a carrier base having a lower portion configured as a crankcase and an upper portion having a number of upwardly directed assembly provisions such as a crankshaft bay and at least one cylinder deck. Arranging the crankshaft bay and cylinder deck so that the engine may be assembled from a position above the engine, without the necessity of attaching connecting rods or crankshaft main bearing bolts from underneath the engine.

Abstract: An apparatus includes an oil-jet emplacement assembly and an oil-jet sheltering assembly. The oil-jet emplacement assembly is configured to spatially emplace an oil-jet device at an installation position relative to an engine block of a vehicle. The oil-jet sheltering assembly is positioned relative to the oil-jet emplacement assembly. The oil-jet sheltering assembly is configured to protectively shelter the oil-jet device from inadvertent oil-jet installation damage.

Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.

Abstract: A lifter guide includes a lifter guide body having an outer surface and an inner surface that extend from a first end to a second end. The inner surface defines at least one push rod passage. A plurality of compression members are provided at the first end. The plurality of compression members project proudly from the first end. The plurality of compression members are configured and disposed to be compressed by a cylinder head to retain the lifter guide in a cylinder block. The lifter guide is devoid of mechanical fasteners.

Abstract: A system is provided. The system includes a coolant loop, a pump, and an exhaust gas re-circulation (EGR) cooler. The pump is disposed in the coolant loop. The EGR cooler is fluidly connected to the pump. Further, the system includes at least one flow control device to selectively isolate the EGR cooler from the coolant loop based on an operation mode of the pump.

Abstract: An assembly for use in a crankcase ventilation system of an internal combustion engine includes a shutter arrangement that is constructed and arranged for preventing that residual gases and/or vapors out of a crankcase flow into an air intake system during a period of time that starts at shut down of the engine and ends after it has been re-started. The assembly also includes an outlet that is constructed and arranged for removing at least a substantial part of the residual gases and/or vapors from the engine as long as it is shut down.

Abstract: A dual fuel common rail engine supplies pressurized natural gas and liquid diesel fuel at different pressures through a co-axial quill assembly for direct injection from a single fuel injector into an engine cylinder. Each coaxial quill assembly includes a matched pair of inner and outer quills that are chosen to have dimensions that allow both quills to sealingly engage each fuel injector at a common conical seat responsive to a clamping force applied along an axis. Matched pairs of inner and outer quills are retained together during pre-installation handling with a retainer that is left between the inner and outer quills after installation in an engine.

Abstract: A method of setting lash in a cam phaser includes rotating a stator having a lobe in a first direction so that the lobe contacts a motion limiter pin disposed within a first hole in a rotor, causing the compression of a spring until a motion limiter lock pin enters a groove on the motion limiter pin and contacts a wall at one end of the groove. The rotor is then rotated in conjunction with the stator in the first direction until a rotor locking pin that is disposed within a second hole in the rotor engages a lock pin seat on a cover at one end of the seat. The rotor is then held in place while rotating the stator in a second direction so that there is a gap between the wall at one end of the groove and the motion limiter locking pin.

Abstract: A gas turbine engine includes a combustor, a first turbine section in fluid communication with the combustor, a second turbine section in fluid communication with the first turbine section, and a mid-turbine frame located axially between the first turbine section and the second turbine section. The mid-turbine frame includes a first frame case, a second frame case, a vane positioned between the first frame case and the second frame case, and a spoke extending through the vane and connecting the first frame case to the second frame case. The spoke includes a tie rod having a first end connected to the first frame case at a keyed connection.

Abstract: A heat transferring engine valve for an internal combustion engine to increase the combustion efficiency and fuel economy of the engine. The heat transferring valve includes a valve head and a heat transferring member situated at the combustion surface of the valve head and extending toward the combustion chamber. The heat transferring member absorbs heat of combustion during the power stroke of an engine cycle and releases the heat into the combustion chamber during the compression stroke of a succeeding engine cycle, thereby raising the temperature of fuel at the start of combustion. A method for increasing the efficiency of combustion in an internal combustion engine by incorporating at least one heat transferring valve into the engine.

Abstract: A preformed product of a crankshaft is formed in a shape smaller than a shape of a cavity of a separatable die set 1103 composed of an upper die and a lower die and is disposed in the cavity of the die set 1103 as a material M. The cavity of the die set 1103 matches a required shape of the crankshaft. When the material M is disposed in the cavity of the die set 1103, a clearance is formed between the material M and the cavity, and when a side-forming punch 1000P is inserted into the material M, a hollow hole is formed in the material M and the cavity is filled with the material M. As a result, not only can weight saving be achieved by forming the hole in the crankpin of the crankshaft, but also degradation of dimensional accuracy by forming the hole can be avoided.

Abstract: An injector filter of an injector may include a filter frame being seated on an inner side surface of the housing and having a bush coupling portion at an upper portion thereof, wherein a rotation prevention groove may be concavely formed on the bush coupling portion, nets coupled to the filter frame and having a mesh form to filter out the foreign matter contained in the fuel, and a bush coupled to the bush coupling portion and having a rotation prevention protrusion which protrudes from an inner side surface of the bush and may be inserted into the rotation prevention groove of the filter frame.

Abstract: A mounting system is provided to couple an engine unit including a turbine engine portion coupled to a gearbox portion about an axial axis to a support structure. An aft mounting device can couple the turbine engine portion to the support structure. A force determinator can be configured to determine a force load of the engine unit at the location of the aft mounting device. The length of the aft mounting device is adjustable between the turbine engine portion and the support structure in a radial direction to substantially align the gearbox portion and the engine portion relative to the axial axis. The aft mounting device may be sized to a desired length to correspond to a force load of the engine unit during the running condition.

Abstract: A combustion nozzle includes a mixing section and an exit section. The mixing section includes an air inlet, and a fuel inlet. The exit section includes a plurality of jets formed in a predefined pattern on an exit surface. A ratio of a core area of the plurality of jets to an exit surface area is greater than 0.25.

Abstract: A cylinder block (100) of the invention includes a coolant passage (115) that guides coolant inside of a water jacket (120), inside of an inter-bore partition wall (111). The coolant passage (115) is formed by a head-side drill hole (115a) that opens at a position away from a center portion of a top surface of the inter-bore partition wall (111) and is formed inclined with respect to an extending direction (L2) of an axis of a cylinder bore so as to come closer to the center portion of the inter-bore partition wall (111) farther away from the top surface, and a jacket-side drill hole (115b) that is communicated with a tip end portion of the head-side drill hole (115a) and opens into the water jacket (120) and is formed inclined with respect to the extending direction (L2) of the axis toward the opening so as to gradually come closer to the top surface.

Abstract: A method and apparatus for rolling and aligning a casing of a gas turbine is disclosed. At least one jack having a roller at one end is positioned at a location to couple the roller to the casing. The casing is rolled within the turbine by rolling over the roller of the at least one jack. The roller is moved relative to the at least one jack to align the casing within the turbine.

Abstract: A two-stroke engine includes a crankshaft that is rotatable about an axis, and an engine block that includes a combustion cylinder and a compression cylinder. A first piston is slidably disposed within the combustion cylinder and is operatively coupled to the crankshaft for reciprocating movement within the combustion cylinder through a power stroke during each rotation of the crankshaft about the axis. A second piston is slidably disposed within the compression cylinder and is operatively coupled to the crankshaft for reciprocating movement within the compression cylinder such that fresh air is received and compressed in the compression cylinder during each rotation of the crankshaft about the axis. A conduit provides fluid communication between the combustion cylinder and the compression cylinder, and a fuel injector is in communication with the combustion cylinder for admitting fuel into the combustion cylinder.

Abstract: A method of producing a fuel distribution pipe includes providing a forged bar made of metal, forming a main bore in the forged bar so as to extend along an axial direction of the forged bar, forming an injector bore having an injector opening in the forged bar, forming a bolt through hole having a bolt opening in the forged bar, obtaining a base pipe having the main bore, the injector bore and the bolt through hole from the forged bar, and bending the base pipe such that the injector opening of the injector bore and the bolt opening of the bolt through hole are provided along a line parallel to the axis of the main bore. The injector bore directly communicates with the main bore and the bolt through hole does not communicates with the main bore.

Abstract: An assembly for a gas turbine engine, with a gearbox including a first portion having a first input gear coupled to a rotatable turbine shaft, a first output gear, and defining a first transmission path between the first input and output gears, and a second portion having a second input gear coupled to the turbine shaft, a second output gear, and defining a second transmission path between the second input and output gears different from the first transmission path. A fan rotor is coupled to the first output gear and a booster rotor is coupled to the second output gear on a same side of the gearbox than the coupling between the fan rotor and the first output gear. A method of assembling a drive for a fan rotor and a booster rotor in a gas turbine engine is also disclosed.

Abstract: A turbomachine component includes a body having an exterior surface and an interior surface, an internal cavity defined by the interior surface, and a reactivity neutralizing member arranged within the internal cavity. The reactivity neutralizing member is configured and disposed to neutralize turbomachine combustion products on the interior surface of the body.

Abstract: The present invention provides reduced fatigue stress levels in a stressed area of an engine crankcase by lowering the outer edges of the crankshaft bearing cap fracture-split lines without changing the central axis location of the crankshaft in the crankcase. This is accomplished by causing the fracture-split lines of the bearing caps to angle downward from the horizontal plane of the crankshaft axis to a slightly lower position at the outer edges of the bearing caps. This lowers the outer edges of the bearing caps sufficiently to allow larger radii to be formed on the lateral connectors of the crankcase support webs with the adjacent sidewalls of the crankcase. Accordingly, the fatigue stress levels in the crankcase web members are reduced without requiring a significant change in the crankcase dimensions.

Abstract: A combustion nozzle includes at least one passage having a mixing section and an exit section. The mixing section includes an air inlet, and a fuel inlet. The mixing section has a first length and a first diameter. The exit section has a second length different from the first length, and a second diameter different from the first diameter.

Abstract: A method for producing a combustion chamber includes providing a combustion chamber wall; forming a plurality of milled recesses in the combustion chamber wall, along a longitudinal axis and in an area of the longitudinal axis transverse to the longitudinal axis; and forming a cooling channel having a substantially rectangular cross section and opposite web walls inside the combustion chamber wall along the longitudinal axis and configured to receive a flow a cooling medium along the longitudinal axis, wherein the plurality of milled recesses form depressions in the web walls.

Abstract: A free-piston engine generator comprising an engine cylinder, a piston configured to move within the cylinder, a cylinder housing having a bore for receiving the engine cylinder and a plurality of magnetisable elements arranged within the cylinder housing to be adjacent the cylinder along at least a portion of its length.

Abstract: An engine assembly comprising a cylinder head, turbocharger in fluid communication with the cylinder head and exhaust conduit in fluid communication with the turbocharger and method of making the assembly using a single human assembler includes: mounting the turbine to the cylinder head; using a first assembly aid to form a slidable joint between the exhaust conduit and head; using a second assembly aid to form a movable joint between the turbine and exhaust conduit and align the turbine outlet flange and exhaust conduit inlet flange; using a third assembly aid to pilotingly engage the flanges; disposing a clamp about the turbine outlet flange and the exhaust conduit inlet flange; tightening the second assembly aid sufficiently to form an immovable joint; tightening the clamp to form a sealed joint between the flanges; and tightening the first assembly aid to form a fixed joint.

Abstract: An object of the invention is to increase efficiency in an operation of joining an upper shell and a lower shell and to enhance reliability of a fuel tank against leakage. The fuel tank according to the present invention includes: a fuel tank body (10m) which is constituted by an upper shell (12) and a lower shell (14); a fuel supply device (30) which is installed in the fuel tank body (10m) and pressure-feeds fuel in the fuel tank body (10m) to an internal combustion engine (E) of a vehicle; and a fuel vapor treating apparatus (20) which is configured to enable adsorption of fuel vapor, wherein the fuel supply device (30) and the fuel vapor treating apparatus (20) are mounted to the upper shell (12), and pipe (20a), (20p), (20t), (43), and (31) and wires (44) and (32) of the fuel supply device (30) and the fuel vapor treating apparatus (20) are configured to penetrate a wall of the upper shell (12).