Abstract: A locomotive engine having an engine cooling system, a compressor for compressing engine intake air, and an aftercooler for cooling the compressed intake air prior to introduction into an intake manifold of the engine. The locomotive also has a dynamic brake system that includes a dynamic brake grid and one or more cooling fans. The engine cooling system includes an engine cooling circuit having coolant passages internally disposed in the engine, and a radiator and radiator fans configured to receive coolant exiting the engine and return cooled coolant to the engine. An enhanced aftercooler cooling circuit is disposed in fluid communication with the engine cooling circuit and includes a heat exchanger arranged to receive coolant exiting the engine coolant passages, cool the coolant passing therethrough, and return cooled coolant to the aftercooler.

Abstract: A transformer (57) using exhaust gas heat as a heat source is provided at a fuel supply system (5) of a gas engine (1), wherein the transformer (57) causes a transformational reaction (H2+CO2?CO+H2O) between hydrogen and carbon dioxide, thus changing the composition of the fuel, and this fuel with a changed composition is supplied to a combustion chamber. Furthermore, water vapor is produced by an exhaust heat boiler (52) using exhaust gas heat as a heat source, and this water vapor is supplied to a fuel supply system. Further still, a hydrogen separating device (56) is provided that separates and extracts hydrogen from a fuel, and the fuel is supplied to a combustion chamber after hydrogen is separated and extracted.

Abstract: A first chain mechanism for transmitting the rotation of a crankshaft of an vertical engine to a camshaft and a second chain mechanism for transmitting the rotation of the crankshaft to a balancer shaft are forcibly lubricated by an oil injected by first, second and third oil jets mounted within a chain chamber. The first, second and third oil jets are disposed at locations closer to the crankshaft, the cam shaft and the balancer shaft, respectively, and the first and second oil jets are disposed inside a travel locus for a timing chain. Thus, the chain mechanisms disposed in a plane of the vertical engine can be lubricated effectively.

Abstract: An internal combustion engine may comprise at least one double cylinder (17). A piston (10, 12) is reciprocally movably disposed in each individual cylinder (14, 16) of the double cylinder and each piston is connected to a crankshaft (4). The pistons preferably reciprocate in the same direction within the individual cylinders. A cylinder space (19, 20) is defined within the cylinders above each piston head. Preferably, the cylinder spaces are formed such that the cylinder spaces communicate during at least a portion of the reciprocal movement of the pistons.

Abstract: A cylinder head for an internal combustion engine (ICE) includes a lower cooling jacket, an upper cooling jacket and an exhaust manifold disposed therebetween. The exhaust manifold enables exhaust of combustion gas from cylinders of the ICE. The lower cooling jacket has coolant flow paths in fluid communication with coolant flow paths of a cylinder block of the ICE. Coolant flow paths of the upper cooling jacket are in fluid communication with those of the lower cooling jacket through one of a plurality of passages. The passages can be selectively plugged to define coolant flow direction through the cylinder head. The upper and lower cooling jackets are in heat exchange relationship with surfaces of the exhaust manifold to cool exhaust gas flowing therethrough.

Abstract: An adapter system for use with an internal combustion engine flushing apparatus which permits connection to the crankcase and to the oil filter of internal combustion engines. A first adapter assembly enables a conduit hose of a flushing apparatus to be connected with the drain plug port of the engine crankcase via a specialized adapter piece and a universal adapter piece. The uniform adapter piece forms a threaded connection with the specialized adapter piece for attachment to the conduit hose of the flushing apparatus. A second adapter assembly for coupling a second hose of the flushing apparatus also includes one of a plurality of specialized adapter elements selected to fit the oil filter port of a particular automobile engine and a universal adapter element connected by a bayonet coupling between the specialized adapter and a second conduit hose of the flushing apparatus.

Abstract: A drive system for a motor vehicle includes an internal combustion engine and a transmission. The internal combustion engine has an associated driveshaft, the transmission has an associated transmission shaft, and the driveshaft and the transmission shaft are connected to one another. A free installation space is provided between the internal combustion engine and the transmission in the direction of the driveshaft and, respectively, of the transmission shaft. The internal combustion engine has an associated electric machine which can be operated as a starter/generator. The electric machine has an associated power electronics unit which is arranged in the free installation space.

Abstract: A bearing structure of a crankshaft in an internal combustion engine supports a crankshaft on a crankcase with rolling bearings includes a play absorbing device for absorbing the play in the radial direction generated between an outer race of the rolling bearing and a bearing hole of the crankcase. The play absorbing device includes a push plug which pushes an outer race of the ball bearing in the direction perpendicular to an axis of the crankshaft. The push plug is arranged in parallel to the crankshaft between the cylinder and the crankshaft. The outer race of the ball bearing is resiliently biased toward a side of the bearing hole of the crankcase which receives an explosion pressure. As a result, the generation of a hitting sound which is attributed to the above-mentioned “play” can be largely reduced even with respect to an internal combustion engine with a high explosion pressure.

Abstract: An oil inlet (2) for a piston (1) provided with a cooling duct (4) and installed in an internal combustion engine is designed in order to enable an improved concentration of a cooling oil stream when entering the oil inlet and an improved distribution when exiting into the cooling duct. To this end, the inner wall surface (3) of the oil inlet (2) is shaped according to a function of a one-sheeted rotating hyperboloid or of a surface-delimited torus, whereby the shape is determined according to a stream position of the cooling oil stream (7), which is produced by an oil spraying nozzle (6), relative to the cross sectional opening area (B, D) of the oil inlet.

Abstract: A work vehicle cooling system comprises a cooling fan (18) driven by the output from an engine (16), and a flow path for allowing an airflow (27) generated by the cooling fan (18) to be flown between the engine (16) and an operator's seat (14) without having passed through any of a radiator (20) and an oil cooler (21) for the engine (16). With this simple configuration, the heat generated by the engine (16) is prevented from being transmitted to the operator's seat (14).

Abstract: In a variable compression ratio mechanism that serves to change the compression ratio of an internal combustion engine by rotating camshafts so as to cause relative movement between a cylinder block and a crankcase, an oil film forming device forms oil films on the sliding portions of camshafts.

Abstract: The present invention relates to an engine and a method for producing the engine. The engine is constructed as follows. The engine interlockingly operates a pump (39, 139) for feeding fuel under pressure, by power of a crank shaft (1). A pair of gears (32a) and (32b) are arranged to be attached to a gear attaching shaft (32). The paired gears (32a) and (32b) are attached to the gear attaching shaft (32). At least one gear (32a) of the paired gears (32a) and (32b) constitutes a gear train (14, 114) through which the power of the crank shaft (1) is transmitted to the pump (39, 139). The method for producing the engine is constructed as follows. The method uses a common part for each of the gear trains (14) and (114) so as to produce engines of an injection pump specification and a common rail specification and alternatively manufactures the gear trains (14) and (114) through the common part.

Abstract: The present invention relates to a drip tray that minimizes spillage when the oil filter of an engine is removed. The tray is formed of a generally flat and flexible member which is bent to provide a concave upper surface for directing spilled oil away from the engine and/or vehicle components. The tray includes spring clips which serve to allow it to be removably attached to a ledge formed in the engine block just below the opening for the filter. The clips are provided with barbed portions that bite into and secure the tray on the ledge.

Abstract: A method of high pressure die casting in iron alloy reinforcements for main bearing scantlings in an aluminum alloy engine block for an internal combustion engine. Prior to casting, reinforcements (1) having bores (6) for main bearing screws are placed in a die cavity (21), so that cores for main bearing screws protrude into the bores in each reinforcement on one side of the reinforcement. Then the reinforcements are fixed in the die cavity by placing a cylinder liner core (25) against a surface (27) of the reinforcement on the opposite side of the reinforcement.

Abstract: A method is disclosed for controlling operation of an engine coupled to an exhaust treatment catalyst. Under predetermined conditions, the method operates an engine with a first group of cylinders combusting a lean air/fuel mixture and a second group of cylinders pumping air only (i.e., without fuel injection). In addition, the engine control method also provides the following features in combination with the above-described split air/lean mode: idle speed control, sensor diagnostics, air/fuel ratio control, adaptive learning, fuel vapor purging, catalyst temperature estimation, default operation, and exhaust gas and emission control device temperature control. In addition, the engine control method also changes to combusting in all cylinders under preselected operating conditions such as fuel vapor purging, manifold vacuum control, and purging of stored oxidants in an emission control device.

Abstract: A cylinder head gasket for an engine is provided. The gasket includes an opening positioned in a gasket substrate and arranged to align with an engine oiling circuit passage to allow oil to flow from a cylinder block through the gasket to a cylinder head. The gasket further includes a filter element attached to the gasket relative to the opening and arranged to provide a barrier to debris in the oiling circuit.

Abstract: A combustion type power tool capable of performing cleaning to a cleaning target from outside of the tool without disassembly of a head cover and a head cap. In the head cap, first and second cleaning passages are formed. The first cleaning passage has one end open to an atmosphere and a closed inner end. The second cleaning passage has one end in communication with the first cleaning passage and another end open to a spark generating portion which is one of the cleaning target in the combustion type power tool. A check valve is disposed in the first cleaning passage for normally closing the one end of the first cleaning passage by a biasing force of a compression coil spring.

Abstract: Gaskets are placed in joints between adjacent nonferrous metal engine members of a water-cooled engine for an outboard motor, such as a cylinder block, a cylinder head, a crankcase, a mount case and an oil pan, to seal the joints. Each of the gaskets has a base member formed of a stainless steel. The surfaces of the base member are coated with electrochemical corrosion preventing films formed by applying a liquid containing flakes of an aluminum alloy or a zinc alloy and a silicate resin in films and baking the films of the liquid. The electrochemical corrosion preventing films are coated with sealing films formed by applying a liquid containing aluminum flakes and a silicate resin to the electrochemical corrosion preventing films and baking the films of the liquid. The gaskets are prevented from electrochemically corroding despite potential difference between each gasket and the adjacent engine members.

Abstract: A method and a device for exhaust gas recycling (EGR) in a combustion engine (1), wherein EGR gases are led into a section of the intake channel where a venturi (9) is arranged for modifying the flow of the intake air, and where a reduced pressure prevails because of modified flow, wherein at least a portion of the wall (10) of the venturi (9) is adjustable for varying the cross section of the venture and thereby for desired adjustment to prevailing operational conditions.

Abstract: The warm-up period of the internal combustion engine is reduced by operating an electric machine as an additional load of the combustion engine in order to obtain a specific excessive increase in the heat loss of combustion engine. To this end, the magnetizing current of the electric machine such as, for example, a starter generator with field-oriented regulation, can be regulated in order to obtain a specific decrease in the degree of efficiency of the electric machine.