Abstract: Apparatus for reducing backlash in a gear wheel that includes at least two interacting gear rims that rotate in relation to one another. An adjusting mechanism is located between the gear rims for adjusting the relative angle of rotation of the gear rims about a common axis of rotation. Each adjusting mechanism includes an hydraulic cylinder connected to a pressure medium source and which is arranged to act between the two gear rims in such a manner that a force arises that tends to displace one gear rim in relation to the other about the axis of rotation. Each of the hydraulic cylinders extends at an angle to a disk plane and is supported on a part-spherical foot portion in a bowl-shaped seat in one gear rim and a corresponding part-spherical head portion in a bowl-shaped seat in the other gear rim.

Abstract: System and a method for automatically topping up an internal combustion engine (4) with lubricant. A lubricant container that includes a (1), a pipe (2) which connects the container to the internal combustion engine (4), a level pipe (5) which defines the oil level in a sump (6) and an apparatus (3) for transferring lubricant. The apparatus (3) for transferring lubricant makes it possible to transfer lubricant both from the container (1) to the internal combustion engine (4) and from the internal combustion engine (4) to the container (1).

Abstract: Apparatus and method for supplying sealing air to an exhaust turbine (15) that interacts with an internal combustion engine for turbo-compound operation in a vehicle. Exhaust gases from the internal combustion engine are received in an exhaust system having a supercharger turbine (11) and which drives a compressor (13) for the engine combustion air. Residual energy in the exhaust gas flow is recovered via the exhaust turbine (15) for transfer to the crankshaft of the internal combustion engine. The exhaust turbine (15) is supported in a bearing housing (32), which is fed with sealing air via a fluid line (36). The exhaust system includes an exhaust brake throttle (16) having an exhaust gas pressure regulator (22) for regulating the exhaust brake pressure. The exhaust gas pressure regulator (22) is connected via a compressed air line (28) to a compressed air source (29, 30), which can be connected in parallel to the bearing housing (32) via a prioritizing valve (35) and a compressed air line (36).

Abstract: Method and device (15) for pressure control in a combustion engine (1) with a crankcase (11) to which crankcase gases are guided during operation of the engine. The valve device (15) is adapted for detecting the current pressure in the crankcase (11) and for opening and closing, respectively, a connection (35) between the crankcase (11) and a suction pipe (9) of the engine depending on the detected pressure. The valve device (15) includes a first valve (19) which is adapted for assuming a condition between a first, opened position and a second, closed position depending on the detected pressure in the crankcase (11), and a second valve (20) which is adapted for assuming a condition between a first, opened position and a second, closed position depending on the condition of the first valve (19). The invention also relates to a method for such pressure control.

Abstract: Method and arrangement for engine breaking in motor vehicles having an internal combustion engine with at least one cylinder, at least one exhaust valve at the cylinder and a rocker arm (4) for activation of the exhaust valve. The rocker arm (4) is arranged on a hollow rocker arm shaft (5) and arranged to be effected by ridges (2a, 2b, 2c) on a camshaft (2), the device additionally having a control valve (15, 16) for controlling the oil pressure in the rocker arm shaft (5), and means (6; 14) receptive to an increase of the oil pressure in the rocker arm shaft (5) being integrated in the rocker arm (4) for absorbing a play between the rocker arm (4) and the exhaust valve in the case of increase oil pressure. At least one of the ridges (2b, 2c) causes opening of the exhaust valve with an engine breaking effect.

Abstract: Device for separating oil mist from blow-by gases from an internal combustion engine, comprising a rotating cylindrical container (17) with a central inlet (23) for gases with oil mist at one end and a central outlet (24) for gases and peripheral outlets (25) for separated oil at the other end. Between the inlet and the outlet, narrow channels (34) extend in several layers, spaced from the axis of rotation, through which the gas with oil drops flows. Under the influence of the centrifugal force the drops of oil are moved at the same time radially, the rotational speed and the length and radial dimension of the channels being adapted to each other so that the oil drops strike the channel walls before flowing out of the channels.

Abstract: An engine brake application system for an internal combustion engine. The engine has at least one cylinder, at least one exhaust valve associated with the cylinder, and a rocker arm for activating the exhaust valve. The rocker arm is arranged on a hollow rocker shaft having a regulator responsive to an increase in oil pressured in the hollow rocker arm shaft and incorporated into the rocker arm for taking up clearance between the rocker arm ant the exhaust valve. To effect a reduction of engine speed during a gear shift, the system includes an actuator responsive to a signal generated in response to a need to effect a gear shift for rapidly increasing the oil pressure in the hollow rocker arm shaft to thereby effect valve clearance take-up.

Abstract: Oil or fuel filter includes a holder element with an inlet and an outlet for liquid, an outer container fixed to the holder element, and a filter insert housed in the outer container. The insert includes an inner container, a filter element and a perforated tube placed centrally in the filter element, all of these elements being glued to each other so that they form a replaceable filter unit with a collecting container for contaminants.

Abstract: A pump arrangement is disclosed having a housing, a first pumping chamber within the housing, a drive shaft carried by the housing, and first pumping means arranged for rotation within the first pumping chamber. The first pumping means is driven by the drive shaft. A second pumping chamber accommodating a second pumping means is separated from the first pumping chamber by the housing such that the housing forms common separation wall. To provide a compact arrangement in which the first and second pumping chambers are reliably sealed from each other, the second pumping means is driven by the drive shaft via a magnetic coupling. Thus, the coupling comprises a drive rotor connected to the drive shaft and a driven rotor carried by the housing. The driver rotor and the driven rotor are separated by a separation wall assembly serving as a static seal to hermetically seal the second pumping chamber from the drive shaft.

Abstract: Supercharged internal combustion engine with exhaust recirculation, in which the exhaust manifold of the engine communicates, via non-return valves and an exhaust conduit, with the inlet manifold of the engine. The non-return valves are arranged to only open when the exhaust pressure in the exhaust manifold is higher than the charged air pressure.

Abstract: A fluid operated valve assembly is disclosed including a housing defining a cylinder, a piston arranged for reciprocal motion in the cylinder, a fluid inlet for admitting fluid into the working chamber of the cylinder to cause the piston to be displaced therein, a valve closure, a valve seat and a connector connecting the piston to the valve closure such that the closure is in an open position and the piston is in one end position and the valve closure sealingly engages the valve seat when the piston is in the other end position, the connector having a length which is variable dependent on the fluid pressure in the working chamber.