Abstract: Method and apparatus for cold starting assistance for diesel engines including use of a sheathed-element glow plug in the combustion chamber and a heater plug in the air intake, which plugs are operated by a control device (15) responsive to engine operating parameters, particularly engine temperature.

Abstract: This invention relates to a reciprocating internal combustion engine having a cylinder crankcase with a cylinder head with is designed to reduce the manufacturing and spare parts cost. A single design unified cylinder head is employed for liquid cooling and air cooling, the cylinder head having both cooling spaces for the liquid coolant and cooling fins for the cooling air. Coolant passageways in the cylinder head are connected to coolant spaces in the cylinder block portion of the cylinder crankcase by way of openings in the upper end of the cylinder block and openings in the cylinder head gasket which permit flow of coolant to the annuli in the cylinder head. In addition to the annuli, the coolant passageways in the cylinder head include a longitudinally extending header, horizontally extending web ducts extending radially inward from the annuli and vertically extending connecting conduits inclined relative to the cylinder axes interconnecting the web ducts and the header.

Abstract: A reciprocating internal combustion engine having a cylinder crankcase and a ventilation device for said crankcase, which ventilation device is in fluid flow relation with an oil-gas distribution line in a cylinder head.The fluid flow connections between the ventilation device (3) and the interior of the cylinder crankcase (1) and between the ventilation device (3) and the oil-gas distribution line is effected solely by flow passages internal to the engine.

Abstract: An internal combustion engine which each cylinder has a cylinder cooling space and each cylinder head has a head cooling space, the individual cylinder cooling spaces being connected in series, the individual head cooling spaces being connected in series and the cylinder cooling spaces, as a group, cooling spaces, as a group, being connected in series. The engine includes a lubrication oil system which supplies cooling oil to the cylinder and head cooling spaces as well as supplying lubricating oil to lubricate other components such as the bearings for the crankshaft, the crankshaft and the piston connecting the rods.