Abstract: An arrangement for hydraulic pressure feed to self-adjusting hydraulic valve pushers in an internal combustion engine has a number of valves arranged in line in the engine cylinder head. The valve pushers are actuable by a cam shaft rotatably mounted in a number of bearings mounted on the cylinder head above the valves and the valve pushers. For providing the valve pushers and cam shaft bearings with satisfactory hydraulic pressure feed via a passage system limited in the cylinder head, in a simple and inexpensive way, the pressure oil is fed via a distribution conduit running along the line of valves and having a number of branch conduits. Each branch conduit extends in a plane at right angles to the cam shaft through one of its bearings, for pressure feed to said bearing and to at least one valve pusher. Each branch conduit preferably connects to a pocket formed in the cylinder head connecting the bearings of two valve pushers to each other.

Abstract: An arrangement for protecting ignition means in an internal combustion engine includes a cylinder head and two longitudinal parallel valve cover banks mounted thereon. Between the valve cover banks there is a longitudinal space for ignition means to the respective combustion chambers of the engine. Such a space and ignition means with their connections located therein are usually subjected to dirt, which reduces the functional reliability of the engine. To eliminate this and to facilitate engine service, the space is formed as a trough with a bottom and two end walls in the cylinder head, the trough being covered by a lid joining on to the valve cover banks and to at least one of its end walls and having at least one opening for ventilation and drainage.