Abstract: A fuel injection pump, especially for internal combustion engines, which includes a pump piston axially displaceable in a cylinder of a pump housing and operable by a cam of a camshaft through the intervention of a rocker. For controlling the quantity of the fuel to be injected, the circumference of the piston is provided with an oblique control groove for cooperation with a control bore in the cylinder. The rocker is pivotally connected to the pump piston and in spaced relationship to the piston is under the load of a spring determining the maximum injection pressure. Between the area where the spring acts upon the rocker and where the rocker is pivotally connected to the pump piston, the rocker is provided with a roller adapted to roll on the cam while the spring presses the rocker in fuel feeding direction against an abutment.

Abstract: A multi-cylinder reciprocating piston internal combustion engine with the cylinders thereof arranged in series in a plurality of rows, which includes a crank shaft with Z-shaped lift pin having rotatably journaled thereon a universal joint. The universal joint includes an outer part with journal pins and an inner part journaled in the outer part and including a hollow shaft having its longitudinal axis extending perpendicular to the axes of the journal pins. The outer part of the universal joint is non-rotatably connected to a double arm rocker having pistons connected thereto through the intervention of connecting rods. The outer part of the universal joint which is journaled in the engine housing extends around the lifting pin in a box or bowl-shaped manner. For each lifting pin, two diametrically arranged double arm rockers, with two pistons each are provided.