Abstract: A variable-venturi nozzle for the measurement and regulation of flows in gas conduits, in particular in internal combustion engine intakes, wherein at least one wall element in the zone of the venturi throat thereof is in the form of at least one elastic wall deformable under the action of the pressure of a control fluid.

Abstract: A lubricating system for an internal combustion engine includes a crankcase within which are located the rotating shafts, one of which is the crankshaft, and the bearings for these shafts, the crankcase having disposed above it the cylinder block of the engine, and within its bottom portion the sump for the lubricating oil. The oil pump body is radially centered within a cylinder casing by peripheral engagement with a pump seat, formed within one of the end walls of the cylinder casing of the engine crankcase and the pump body serves as the end bearing for the rotating shaft of the engine, the extension of which constitutes the pump shaft.

Abstract: A method and apparatus for the elastic attachment of the exhaust manifold to the cylinder head of the motor wherein the manifold is pressed against a gasketed mating surface with the cylinder head by elastic means disposed between the inclined supporting surfaces of the manifold and the cylinder head.