Abstract: An internal combustion engine having a noise-suppressing encapsulation, a cooling air blower to ventilate the encapsulation, at least one cooling air inlet opening and at least one cooling air outlet opening arranged in the encapsulation, and an exhaust pipe connected to the engine by means of at least one body-resonance-absorbing compensator located at least partially within the encapsulation. The compensator penetrates the encapsulation without touching it and in the region of penetration is arranged at least one plate-like absorption silencer substantially within a plane perpendicular to the compensator axis.

Abstract: Apparatus for continuously measuring rates of flow of a liquid has two containers arranged serially in the liquid flow path and each associated with a self-levelling balance beam. Beam displacement is measured capacitively and used to alter current fed to a coil tending to maintain the beam level. The magnitudes of the currents necessary to maintain the beams level is a measure of the liquid level in the containers and is used to keep the liquid levels between pre-determined upper and lower values by controlling valves through which the liquid flows into the containers. The differentials of the currents with respect to time when the liquid levels are falling in both containers, are added. If the liquid level in the first container is rising, however, no differential is provided whereas the differential of the second container liquid level, when rising, is supplied to the adder but negatively. The adder provides an output which is a measure of the volume of liquid supplied by the apparatus.

Abstract: A transducer for measuring the internal pressure in pipes, preferably injection pipes of diesel engines by determination of pipe deformations, comprises a rigid housing enclosing the pipe in which the pressure is to be measured, and at least one elastic sensor element arranged inside the housing and adjacent to at least a part of the circumference of the pipe. The sensor element and the housing are detachably mounted on the pipe and between the housing and the sensor element there is arranged an endorsing element elastically forcing the sensor element against the pipe whereby deformations of the pipe are transmitted frictionally to the sensor element.

Abstract: An internal combustion engine having a noise suppressing encapsulation, said encapsulation being ventilated by a blower and cooling air ducts being formed within the encapsulation by means of partitions, one of said cooling air ducts comprising all fuel and oil leading engine parts and the other cooling air duct being imperviously divided from the first one comprising the parts of the exhaust system.

Abstract: A device for measuring rotational angles of a rotating shaft of a machine, and comprising transducers signals of which being released by one or several reference angle signs or a machine characteristic phenomenon respectively, and being input to a processing unit. The processing unit comprises a frequency multiplier circuit and a counter the frequency multiplier circuit multiplying the signal of one or several reference angle signs, with the counter counting the multiplied signals and being resettable and startable by either a reference angle signal or the signal released by the machine characteristic phenomenon and being blockable by the respective other signal.

Abstract: A ventilation system for an encapsulated internal combustion engine providing a reduction in short-circuit air flow from the pressure side to the suction side of the ventilation radial fan.

Abstract: A water-cooled internal combustion engine for motor vehicles, particularly a diesel engine, with a cooling system comprising two separate cooling units, each of them consisting of a radiator and a fan, the first cooling unit being arranged forwardly of the engine receiving drive from the engine by mechanical transmission means, the fan of the second cooling unit receiving drive from the engine itself via transmission means, the first cooling unit dissipating at least 60% of maximum heat output and the second unit coming into action additionally to the first by means of temperature control.

Abstract: A sound proof encapsulated engine, particularly an internal combustion engine, comprising a fan and an intermediate support for the fan, the fan being driven by an elastic element and mounted on the engine case with the aid of the intermediate support by means of a number of bearing faces, the fan bearing housing and the fan drive being accommodated within the encapsulation, and between the engine case and each of the bearing faces being provided an intermediate support having n elastic and body-transmitted sound-absorbing element.

Abstract: A decompression device for internal combustion engines to enable easier starting, comprising a camshaft operated balancer acting on a valve of the engine, a rotatable decompression cam acting on the balancer, and a rotation device to rotate the decompression cam during starting, the balancer and the rotation device being designed to enable minimum space requirement and symmetrical motion of and forces on the decompression mechanism.

Abstract: An internal combustion engine comprises an engine unit support and a crankcase which parts are connected by a resonance-absorbing element. The engine parts located above the resonance-absorbing element are encased by a noise-suppressing encapsulation. The exhaust pipe and the inlet pipe penetrate the encapsulation without touching it and are connected to the cylinderhead by vibration-insulating couplings. Supporting arms are provided which support the exhaust and the inlet pipes. The supporting arms are secured to the crankcase which is freed from body resonance due to the resonance-absorbing element. The supporting arms take over all holding and vibration forces so that the vibration-insulating couplings may be designed very soft in the sense of optimal vibration insulation.

Abstract: A measuring device for measuring the angle of rotation of a machine shaft between a reference angular position of the shaft and the angular position at the instant of the occurring of a phenomenon caused by the operation of the machine.

Abstract: A device for the measurement of the engine oil level in sound proof encapsulated internal combustion engines by means of an oil dipstick.

Abstract: A transducer for mechanical measured variables, especially a pressure transducer, having a heat pipe system within the housing, the heat pipe system is connected on one side to the thermally high stressed parts of the transducer, and on the other side to parts not exposed to heat or cold. The sensor element of the transducer is cooled through heat transport by means of an alternatively vaporizing and condensating working fluid within the heat pipe system.

Abstract: A piezoelectric resonator, particularly for pressure, acceleration, temperature and load transducers, consisting of a resonator core having holding discs on its opposite sides, said holding discs being formed of solid body layers, said layers consisting alternatively of materials having strongly different acoustic impedance for unit cross-sectional area.

Abstract: A motor vehicle has an engine equipped with an oil sump which is secured in a body-sound-insulated manner to the engine block, and a fan-cooled water radiator, a frame-mounted elastic membrane being provided between the oil sump and the vehicle body components so that the membrane completely encircles the oil sump at its upper edge and provides an acoustic separation between the spaces respectively situated above and below the oil sump, the upper space comprising a sound suppressing encapsulation which is closed relative to the vehicle interior by appropriate wall panels, partitions and sealing sections provided in the vehicle body. The outflow of hot cooling air from the radiator completely by-passes the encapsulation, the sealed upper space of the encapsulation being cooled by the forced draught of a further fan, and sound absorbing silencers being provided at inlet and outlet openings for the cooling air in the encapsulation.

Abstract: A quick release fastener for the releasable fixing of a removable housing part, in particular a maintenance cover of an internal combustion engine with a sound-reducing enclosure, being fixed to a stationary housing part, the housing part comprising holders for opposing outer rims of the removable housing part.

Abstract: A motor vehicle with an internal combustion engine supported on two longitudinal subframe beams of the vehicle and provided with a noise-suppressing engine encapsulation consisting of a hood supported by the vehicle frame and including substantially perpendicular longitudinal and transverse walls, and a movable cover part on the upper rims of the walls, a front end wall situated in front of the engine reaching from the bottom rims of the beams to above a passage opening for the engines cooling water, a rear end wall arranged behind the gearbox extending downwardly from the top edges of the beams, and a middle transverse wall extending behind the engine from the top edges of the beams over an air intake pipe and exhaust pipes, two longitudinal side walls extending from the front end wall to the middle transverse wall and an oil sump cover part provided underneath the beams for completing an allround encapsulation assembly.

Abstract: An internal combustion engine with auxiliary machines driven by a V-belt and pulley from the engine the engine and the pulley being enclosed by a sound suppressing encapsulation, the auxiliary machines being mounted externally of the encapsulation, the V-belt extending at least partly through a sound absorbing funnel-shaped leadthrough to the pulley, the funnel-shaped leadthrough providing a silencer unit and a passageway for the intake of cooling air into the encapsulation.

Abstract: A motor vehicle with a soundproof encapsulated engine-gearbox unit, wherein the two subframe beams of the vehicle and/or further parts of the vehicle frame and the vehicle body form supplementary integral members of an allround fully closed soundproof encapsulation of the engine-gearbox unit.

Abstract: An internal combustion engine having a soundproof casing aerated by a blower and divided by at least one partition wall into two cooling air ducts tightly separated from each other, one of the ducts containing all fuel carrying members of the engine, the second duct containing the members of the exhaust system of the engine, the cooling air ducts being admitted by two partial cooling air flows.