Abstract: The invention relates to an arrangement for the automatic removal of water collecting in a fuel filter having a water separator. The evacuation takes place by means of a piston acted upon by a pressure medium, preferably a fuel pressurized by the pressure of the fuel pump, the piston being guided in the container of the fuel filter containing the water. It is particularly advantageous for an already existing drive to be usable for producing the pressure medium and that therefore a simple and inexpensive solution is offered for the removal of the water.

Abstract: The fastening of the thin-walled exhaust pipe inside the liquid-cooled covering takes place by means of screws which are distributed in a cross-sectional plane of the exhaust pipe at the circumference. For receiving the screws, brackets are arranged in the wall of the exhaust pipe which have an internal thread corresponding to the screws. In the mounted state, in the area of each bracket, a radially smaller dimensioned space exists between the exhaust pipe and the covering, which smaller space is eliminated after the tightening of the screws. Instead, the pipe is deformed in the cross-sectional plane of the screws in the sections between the brackets. The extent of the deformation depends on the magnitude of the thermal expansion of the pipe to be expected at the operating state, no constraining forces therefore occur at the pipe which endanger the operation and which result from an obstructed thermal expansion.

Abstract: During idling or partial load of the reciprocating piston-internal combustion engine, the exhaust gas turbocharger (18) is shut-down and the fuel supply is interrupted with some cylinders (12). An optimum charging air supply matched to the operating condition of the reciprocating piston-internal combustion engine results by a controllable shifting device (32) in the charging air line section (14) of the shut-down cylinders (12). The passage from the charging air line (19) to the charging air line section (14) is closed by the shifting device (32) during operating periods with interruption of the fuel supply to the cylinders (12). At the same time, a passage opens from a suction opening (33) to the charging air line section (14), through which the air requirement of the disabled cylinders (12) is covered. The interconnected exhaust gas turbocharger (17) thereby operates in a favorable operating range.

Abstract: In a three-component bearing, an intermediate layer 12 consisting of the harder bearing metal is arranged only in the axial edge areas of the bearing. In the highly stressed bearing center, the slide layer is supported directly by the steel-back bearing part. As a result, previously occurring fatigue fractures of the intermediate layer in the bearing center will be avoided.

Abstract: The invention relates to a slide bearing with two bearing shell halves which are held together during the installation by springy clamps. The clamps are formed from a band-shaped material piece having two bow-shaped legs bent over toward a side which are supported in inwardly inclined end areas at edges of the bearing shell halves. The seating of the clamp is thereby wobble-free, and more particularly both when the clamp is inserted with only one end into a mounting as also when both bearing shell halves are assembled which then are held together without play. The secure seating of the clamps is attained by multiple linearly- and areally-like supports of the clamps and by springy abutment at the inwardly bent end areas of the legs of the clamp, whereby axially acting forces result.

Abstract: A sealing arrangement between a shaft and a housing of a fluid flow engine consists of a blocking gas space acted upon with blocking gas, which is delimited by two sealing rings guided in annular grooves of the shaft and radially sealingly abutting at the shaft through-bore. In order to avoid operation-endangering wear of the sealing rings in case of failure of the blocking gas supply, the shaft through-bore is constructed with three diameter regions mutually offset by right angle steps. The steps form each an axial support for the coordinated sealing ring which comes into action when a permissive initial wear has occurred at the sealing ring.

Abstract: A bearing support of the rotor of an exhaust gas turbocharger with two inwardly disposed roller bearings in which, to assure a long length of life of the bearing, the roller members of the bearings are pressed constantly against their races so that they roll off along the same in a defined manner and no wear occurs as a result of sliding or load changes. The abutment forces which act at the bearings are produced by one or several pneumatic cylinders whose pressure spaces are preferably in connection with a gas space of the compressor. As the magnitude of the charging pressure of the compressor is dependent on the rotational speed, the abutment forces are also variable with the rotational speed. The piston surfaces of the pressure cylinders are so matched that at low rotational speeds as low as possible a bearing friction loss results whereas the abutment forces are still sufficiently high to assure a damage-free bearing operation.

Abstract: The invention relates an arrangement for the mounting of exhaust gas lines which are arranged in an exhaust gas-tight space, and serve for the transfer of the combustion gases from the exhaust openings of the cylinder heads to the exhaust gas manifold. By reason of the high temperature load of the exhaust gas lines which are not cooled in the exhaust gas-tight space, the mounting is so constructed that no compulsory forces can occur which stem from the temperature strain. This is achieved by a point-shaped mounting of flanges connected with the exhaust gas lines at only one circumferential place each. The single point fastening assures a radial and axial expansion possibility of the exhaust gas lines under thermal load free of compulsory forces. The exhaust gas lines are threadably secured each by means of fastening bolts within the area of the ends of the cylinder head side preferably at the cylinder head or at wall parts of the components forming the exhaust gas-tight space.

Abstract: An exhaust gas line for a piston internal combustion engine assembled of several parts consists of an inner pipe line conducting the exhaust gases and of a housing surrounding this pipe line with a spacing. Each of the housings contains a cooling liquid space. The cooling liquid spaces of adjacent housing are connected with each other by a connecting nipple. The connecting nipple, axially displaceable in the recesses, permits an expansion compensation between adjacent housings.

Abstract: A supercharged internal combustion engine for a drive system of land vehicle with an air filter (18) and a charging air manifold (12) connected with each other by several flow paths (21, 22, 23) for the combustion air. Each flow path (21, 22, 23) is equipped with a check valve (19, 36, 26) while the flow path (22) is additionally equipped with a controllable closure device (20) and the flow paths (22, 23) are equipped with one charging air compressor (27, 31) each. The charging air compressor (27) includes a drive by an exhaust gas turbine (28). The charging air compressor (31) is driven by an electric motor (32) with permanent magnet energization, whereby the energy for feeding the electric motor (32) is supplied by a generator (33) energized by permanent magnet and driven by the internal combustion engine (11). Depending on the operating condition of the internal combustion engine (11), one of the flow paths or several flow paths are simultaneously in operation.

Abstract: A fastening arrangement of an inner pipe line arranged in a housing adapted to be closed off gas-tight and conducting the exhaust gases, which is easy to assemble and reliable in operation, is attained by plug-in connections. The ends of axially adjacent pipe sections of the inner pipe line are thereby centered in retaining rings. Each retaining ring includes two approximately radially projecting lugs, of which one is constructed as a fixed point and the other as a displaceable coupling.

Abstract: A diesel engine with an injection pump coordinated to each cylinder. The pump piston (13) of each injection pump is actuated by a cam (15) of a camshaft (12) by way of a roller tappet (14). Each roller tappet (14) is arranged in an individual tappet guide member (16) which is axially adjustably supported by means of two coaxial cylindrical guide pins (17, 18) in corresponding openings (19, 20) of the cylinder crankcase (11). By means of this arrangement, the position between cam (15) and roller tappet (14) and therewith the delivery start of the injection pump is adjustable by displacement of the tappet guide member (16). A universal applicability for diesel engines with different cylinder numbers is achieved by the individual arrangement of the tappet guide members (16), whereby additionally a simple manufacture and assembly is realized.

Abstract: A control for the engagement and disengagement of an exhaust gas turbocharger in which the charging air pressure of the internal combustion engine is used as control magnitude for the engagement and disengagement. Unfortunately, this charging air pressure exhibits oscillations with large amplitudes after each engagement and disengagement which could trigger faulty shifting operations in the control. To alleviate this problem, the control line (44) between the charging-air line and the control slide valve members (40, 41) is always closed off when these oscillations occur and their negative effects on the control are thereby prevented.

Abstract: A piston for a reciprocating piston internal combustion engine, in which the piston top (11) is secured to the wrist pin (14) by way of two support bearings (18) independent of the piston skirt (12). The piston ring carrier (16) connected with the piston top (11) is additionally connected with the two support bearings by way of a ring-shaped support element (19). A piston with a piston top (11) results which is capable of resisting high combustion space pressures.

Abstract: A diesel internal combustion engine in which during the starting and partial load operation, a number of the cylinders are operated as compressor cylinders and a number as engine cylinders. The supplied charging air of one compressor cylinder (26) is used as actuating medium for the valves (35 to 42) which are to be controlled corresponding to the operating condition of the internal combustion engine, in the connecting lines (27 to 34) between the compressor cylinders (19 to 26) and the engine cylinders (11 to 18) in the absence of a compressed air network. As a result thereof, auxiliary energy of the internal combustion engine (10) is needed only for the initiating control and a rapid shifting of the operating conditions is attained with minimum expenditures.

Abstract: A piston internal combustion engine in which for the engagement and disengagement of an exhaust gas turbocharger (12), its exhaust gas closure device (33) is opened, respectively, closed only so far that the charging air pressure produced by the continuously engaged exhaust gas turbocharger (11) remains approximately constant. By re-routing a small air quantity by way of a by-pass line (36) to the suction side of the compressor (24), the power input of the compressors (21 and 24) is kept small. During the engagement of the exhaust gas turbocharger (12), a small energy quantity is therefore sufficient in order to accelerate the same to its operating rotational speed. Thereafter, the engaging operation is terminated by complete opening of the exhaust gas closure device (33) and by opening of the charging air closure device (34).

Abstract: A control system for the engagement and disengagement of exhaust gas turbochargers, in which the charging air pressure acts as control magnitude on a first control end face of a slide valve member against the force of a spring; in order to prevent the effects of the strong pressure fluctuation of the charging air pressure, which occur during engagement and disengagement of an exhaust gas turbocharger, on the shifting behavior of the control device, the slide valve member includes a second control end face, on which a second control pressure acts temporarily; the second control pressure and the first control pressure and the working medium for the control system may be formed by the charging air pressure so that no additional pressure sources are required; however, by the use of a spring biased valve the second control pressure may additionally be used for the filling limitation during starting and in the range of lower outputs of the piston driven internal combustion engine.

Abstract: In a turbocharged diesel internal combustion engine (10) with low compression ratio, at least one cylinder (11) operating as an engine cylinder is charged during starting and at partial load operation by several cylinders (18, 21, 28) operating as compressors. The pistons of the compressor cylinders (18, 21, 28) lead the piston of the engine cylinder (11). As a result thereof, the engine cylinder can be charged during its compression stroke. The compressor cylinder (28) which by reason of its large angular ignition spacing to the engine cylinder cannot feed directly into the engine cylinder, delivers its supplied air at first to another compressor cylinder (18) which is located more favorably. Only thereafter, the air of the two compressor cylinders (18 and 28) is fed in common and in parallel with a further, possibly also favorably located compressor cylinder (21), to the engine cylinder (11).

Abstract: In a diesel internal combustion engine (10) having a low compression ratio, at least one cylinder (11) operating as engine cylinder is supercharged during starting and in the partial load operation by several cylinders (12, 13) operating as compressor. The piston of the first compressor (12) which is used for the direct charging of the engine cylinder (11), leads the piston of the engine cylinder (11) exactly so far that the air compressed by the same is fed directly into the engine cylinder (11) during the beginning of the compression stroke. At least one further compressor cylinder (13) supplies its air to an air storage device (22) which is connected with the engine cylinder (11) by way of a line (24) adapted to be closed off by a valve (23).

Abstract: A valve control for a reciprocating piston internal combustion engine in which at least two valves per cylinder are actuated in unison by a traverse moved by a rocker arm; the pivotally constructed traverse adapts itself to different valve stem heights of the valve pair by assuming different inclined positions; a self-adjusting torque support mechanism cooperates with the traverse and limits the inclination of the traverse to the extent resulting from the differences of the valve stem heights; an accurate synchronous operation of the valves actuated in unison is assured thereby.