Abstract: A motor vehicle includes a motor and a transmission including a drive shaft driven by the motor and connecting the motor to the transmission, a first output shaft extending along the vehicle longitudinal axis in the one direction, which first output shaft is connected to a wheel axle by a first differential, and a second output shaft extending along the vehicle longitudinal axis in the opposite direction, which second output shaft is connected to a second wheel axle by a second differential, characterized in that the drive shaft is disposed in the longitudinal axis of the motor vehicle and the first and the second output shaft are disposed on opposing sides relative to the longitudinal axis of the motor vehicle with identical spacing with respect to the longitudinal axis of the motor vehicle.

Abstract: A drive unit is situated between a first wheel axle and a second wheel axle and has an internal-combustion engine with a crankshaft system including a horizontally oriented crankshaft, which crankshaft acts upon a continuously variable transmission system which drives wheels of the first wheel axle and of the second wheel axle. The crankshaft is caused to rotate by at least one piston of the engine. The crankshaft interacts with a first set of V-pulleys of the transmission system, which first set of V-pulleys, by way of a first drive shaft, is connected with a first differential of the first wheel axle. The first set of V-pulleys, by way of an endless member, is in an operative connection with a set of V-pulleys which, with the interposition of a second drive shaft, influences a second differential of the second wheel axle.

Abstract: An oil separator is designed for an internal combustion engine with a camshaft system, via which oil separator a medium containing oil-particle-enriched blow-by gases, is influenced to the effect that the oil particles and the blow-by gases are separated and supplied to an oil circuit or to an inlet system of the internal combustion engine. The oil particles are separated from the blow-by gases by rotation of the camshaft system. In order to optimize this oil separator, the camshaft system has at least one camshaft on which a centrifugal blade device acting as the oil separator is effective. The centrifugal blade device conveys the oil particles of the medium against housing walls which are adjacent relative to the camshaft and lead to the oil circuit, with the blow-by gases freed from oil particles being conducted into the inlet system by the pressure conditions prevailing in a crankcase of the internal combustion engine.

Abstract: A fuel injection system designed for an internal combustion engine includes at least one fuel injection nozzle which, by way of a cylindrical shell body, is inserted at least in regions into a bore of a cylinder head and which, by way of a nozzle tip, feeds fuel to a combustion chamber between the cylinder head and a reciprocating piston. The fuel injection nozzle is held in position on a housing section of the internal combustion engine with the interposition of a holding device and, for example, a fastening bolt. The holding device braces a first end region of the fuel injection nozzle against a bore stop within the bore in the cylinder head. To optimize this fuel injection system, the holding device has, outside the bore, a fixing bushing to which the shell body is fixed axially and radially by way of a radial insert element.

Abstract: A pivoting bearing is provided for two connecting rods in a reciprocating piston of an internal combustion engine having two crankshafts which are driven via the reciprocating piston and the connecting rods. The pivoting bearing is received by piston bores of the piston and has gudgeon pin bores for mounting gudgeon pins for gudgeon pin eyes of the connecting rods. The pivoting bearing has radial bearing regions which are provided with the pin bores, are arranged on both sides of a center longitudinal axis of the reciprocating pistons, and delimit the gudgeon pin eyes in a manner which forms an intermediate space. To optimize the pivoting bearing, the bearing regions of the pivoting bearing are configured as cylinder bodies with a cup-like cross section, of which each cylinder body has a base wall and a bearing ring shell.

Abstract: A fan is suitable for an air-guiding system of an outboard motor including an internal combustion engine and a covering hood bounding an engine interior space. The engine drives the fan, which is connected to an upright shaft journal projecting beyond an upper side of a housing of the engine. The covering hood has air flow openings, and the fan influences the air flows in the covering hood interior space. A flywheel, fixedly attached to the upright shaft journal, carries a fan wheel of the fan. The fan wheel is set in place from above, and the flywheel carries the fan wheel for conjoint rotation. Airflows enter the interior space via an inlet opening and a first conducting device, and the airflows, under the action of the fan, act upon at least parts of surfaces of the internal combustion engine and the auxiliary units to cool the internal combustion engine.

Abstract: A pan system suitable for an engine housing structure has trough-shaped inner and outer pans with bottoms and upright walls. The inner pan accommodates engine oil. The outer pan bottom and upright walls run at least in certain areas at a distance from the bottom and walls of the inner pan, forming a channel-like intermediate space containing engine for affecting the temperature of the inner pan. Fins are provided on the inner walls and the outer walls. The bottoms of the inner and outer pans interact through a supporting system. Preferably, the inner and outer pans are made of metallic material and the inner pan is provided at least on one inner side of the bottom and upright walls with a cooling fin system that optimizes heat transfer. The upright walls of the inner and outer pans are connected to the engine housing structure.

Abstract: An outboard motor including an internal combustion engine for propelling a ship is equipped with an air-guiding system using a covering hood surrounding surfaces of the internal combustion engine and auxiliary units. The covering hood is provided with airflow inlet and outlet openings in its interior, and a fan driven by the internal combustion engine influences airflows in the covering hood. An air-guiding system includes channeling devices for partial air flows. First partial air flows are fed as intake air to an engine intake system, and second partial air flows act, with the aid of the fan, on surfaces of the internal combustion engine and the auxiliary units heated by operation of the internal combustion engine. The heated airflows are conveyed by the fan and a third channeling device as exhaust air via an outlet opening in the covering hood outside of the covering hood or into the atmosphere.

Abstract: An outboard turbocharged internal combustion engine includes an outboard engine housing. An exhaust gas turbocharger has a turbine and a charger disposed on the outboard engine housing. A charge air cooler is integrated in an intake unit. The intake unit is routed via connecting ducts and includes a unit container having first, second, and third container sections. The first container section is connected to the second container section accommodating the charge air cooler. The second container section is connected to the third container section that carries air to the charge air cooler. The third container section is formed of a tubular body tapering downward from the second container section toward the charger of the exhaust gas turbocharger. The first container section, the second container section, and the third container section are combined as an integral unit forming an intake unit module composed of a light alloy.

Abstract: An exhaust gas recirculation system is provided for an internal combustion engine having reciprocating piston design with an exhaust gas turbocharger unit having an exhaust gas turbine and a supercharger. The internal combustion engine has a machine housing accommodating one or more cylinders having reciprocating pistons, which is provided with a suction unit and an exhaust gas outlet unit, which is connected to the exhaust gas turbine by way of an exhaust gas line. The exhaust gas line supplies at least a part of the exhaust gas stream to the suction unit via the exhaust gas recirculation system. To optimize the exhaust gas recirculation system, it has a pipe branch, which is connected to the exhaust gas line and is connected to an exhaust gas recirculation line with a control element interconnected.

Abstract: An internal combustion engine has at least one piston which performs stroke movements in a cylinder crankcase. Via two connecting rods, the piston interacts with two parallel crankshafts which rotate synchronously in opposite directions. The connecting rods have, on a side facing toward a piston crown of the piston, bearing eyelets which, via piston pins, are operatively connected to the first and second bearings provided at opposite first and second sides of the piston, which bearings and piston pins act as a device for compensating an asymmetry of the profile of the crankshafts. To optimize the internal combustion engine, the first and the second bearings have cylindrical bearing disks which, firstly, are rotatably mounted in piston bores and which, secondly, include disk bores for receiving first and second pin sections of the piston pins.

Abstract: A pivot bearing suitable for two connecting rods in at least one piston of an internal combustion engine having two crankshafts, includes radial bearing regions that are provided with bolt boreholes and are disposed on either side of a center longitudinal plane of the piston and delimit connecting rod ends, forming an intermediate space. The bearing regions are designed as cylinder bodies having a crucible-like cross-section, of which each cylinder body has a base wall and a bearing ring jacket. The base walls of the two cylinder bodies extend at a distance from each other, and the bearing ring jackets surrounding the base walls are guided away from the base walls in opposite directions. One or more connecting supports run between the base walls. The bearing ring jackets cooperate with the piston boreholes in a rotatably movable manner. The base walls are connected to bearing bushings which are oriented in the axial direction of the pivot bearing and into which the bolt boreholes are incorporated.

Abstract: A reciprocating internal combustion engine includes at least one piston, which is operatively connected by two connecting rods having two crankshafts rotating in opposite directions and running parallel to each other, which crankshafts are oriented in an upright manner to a horizontal water line of a boat, and an internal combustion engine housing of the internal combustion engine is composed of at least a cylinder crank housing and a cylinder head, having inlet and outlet valves, and is bounded by an upper end face and a bottom end face.

Abstract: A reciprocating internal combustion engine includes a reciprocating piston in a cylinder bore of a cylinder housing forming an assembly together with a cylinder head. Two connecting rods are connected between the piston and first and second crankshafts. The two crankshafts are functionally connected to two synchronization gears of a spur gear box. The synchronization gears are connected to the crankshafts in a torque-proof manner such that the crankshafts rotate synchronously in opposite directions. The engine operates based on the diesel principle and with exhaust gas turbocharging, wherein the engine is an outboard engine for a watercraft. The exhaust gas turbocharger has an exhaust gas turbine and a compressor and/or a shaft which carries a turbine wheel and a compressor wheel which runs perpendicular to the longitudinal dimension of the watercraft. The turbocharger is attached on an upper end-face wall of the assembly.

Abstract: A reciprocating internal combustion engine includes a reciprocating piston in a cylinder bore of a cylinder housing forming an assembly together with a cylinder head. Two connecting rods are connected between the piston and first and second crankshafts. The two crankshafts are functionally connected to two synchronization gears of a spur gear box. The synchronization gears are connected to the crankshafts in a torque-proof manner such that the crankshafts rotate synchronously in opposite directions. The engine operates based on the diesel principle and with exhaust gas turbocharging, wherein the engine is an outboard engine for a watercraft. The exhaust gas turbocharger has an exhaust gas turbine and a compressor and/or a shaft which carries a turbine wheel and a compressor wheel which runs perpendicular to the longitudinal dimension of the watercraft. The turbocharger is attached on an upper end-face wall of the assembly.

Abstract: A piston for a piston-cylinder unit, the piston including two pivot bearings for pivotably supporting two connecting rods at the piston about two connecting rod pivot two connecting rod pivot axes extending in parallel to one another and laterally offset from one another; the two pivot bearings provided at a bearing element which is pivotably supported about a bearing element pivot axis at the piston; and the bearing element pivot axis extending parallel to the two connecting rod pivot axes.

Abstract: A piston for a piston-cylinder unit, the piston including two pivot bearings for pivotably supporting two connecting rods at the piston about two connecting rod pivot two connecting rod pivot axes extending in parallel to one another and laterally offset from one another; the two pivot bearings provided at a bearing element which is pivotably supported about a bearing element pivot axis at the piston; and the bearing element pivot axis extending parallel to the two connecting rod pivot axes.

Abstract: A connecting rod for a piston engine, in particular a twin crankshaft piston engine, with a first connecting rod head (2) that comprises a first connecting rod eye (20) for mounting a connecting rod (1) to a piston (52) of the piston engine. A second connecting rod head (3) has a second connecting rod eye (30) for mounting the connecting rod (1) to the crankpin (58; 59) of a crankshaft (60; 61) of the piston engine, along with a connecting rod shank (4) that links the first connecting rod head (2) and the second connecting rod head (3). The connecting rod shank (4) has a narrow first connecting rod shank section (40) adjacent to the first connecting rod head (4) and the connecting rod shank (4) includes a wider second connecting rod shank section (45) adjacent to the second connecting rod head (3).

Abstract: A piston engine which has at least one dry-running piston-cylinder unit. It has a first housing (1), at least one cylinder arranged in or on the first housing (1) in which a piston is reciprocably arranged. The piston-cylinder unit further has a first crankshaft (4) and a second crankshaft (5), the first and second crankshafts (4, 5) being arranged parallel to each other and synchronously rotating in opposite directions. The axes of rotation (X, X?) of the crankshafts (4, 5) are arranged parallel to a center plane (Z) of the cylinder, and they are laterally offset relative thereto. First and second piston rods (6, 7) are pivotally connected to piston (3). The first piston rod (6) has a first end pivotally connected to piston (3) and a second end connected to a crank pin (40) of the first crankshaft (4). The second piston rod (7) has a first end that is pivotally connected to piston (3) and a second end that is pivotally connected to a crank pin (50) of the second crankshaft (5).

Abstract: A connecting rod for a piston engine, in particular a twin crankshaft piston engine, with a first connecting rod head (2) that comprises a first connecting rod eye (20) for mounting a connecting rod (1) to a piston (52) of the piston engine; a second connecting rod head (3) that comprises a second connecting rod eye (30) for mounting said connecting rod (1) to the crankpin (58; 59) of a crankshaft (60; 61) of the piston engine, along with a connecting rod shank (4) that links the first connecting rod head (2) and the second connecting rod head (3), the connecting rod shank (4) comprising a narrow first connecting rod shank section (40) adjacent to the first connecting rod head (4) and the connecting rod shank (4) comprising a wider second connecting rod shank section (45) adjacent to the second connecting rod head (3); is characterized in that the first connecting rod shank section (40) and the second connecting rod shank section (45) merge with one another in a step-like manner and in that the width of the n