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

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 comprising a sound-proof encasing surrounding the outer surfaces of the engine in spaced relation thereto, with a cooling-air inlet and a cooling-air outlet, a blower arranged between these apertures within the encasing and actuated by means of the internal combustion engine, and an additional ventilating device for the ventilation of the encasing after the internal combustion engine has been stopped.

Abstract: An internal combustion engine, in particular a Diesel engine, comprising at least one inlet duct consisting of a delivery portion and an adjoining duct portion wound spiral-fashion around the shaft of the associated intake valve, the upper wall of which bulges downwardly at the point of transition from the delivery portion to the spiral-shaped duct portion in such a manner that the cross-sectional area of the inlet duct is reduced above the valve diameter extending at a right angle in relation to the axis of the delivery portion.