Abstract: The disclosure relates to a hydraulic unit of an electrohydraulic gas exchange valve control system of an internal combustion engine. The hydraulic unit includes a hydraulic housing having a receiving opening, a piston guide, and a slave piston. The piston guide is fastened in the hydraulic housing by way of self-staking with a wall of the receiving opening. The piston guide includes an outer part that brings about the self-staking and an inner part that guides the slave piston. An inner surface of the outer part is radially interspaced from the outer surface of the inner part in an axial region of the self-staking and the outer part and the inner part are connected in an axially form-locked manner so that a first end section of the outer part facing the gas exchange valve is partially or fully formed into an outer circumferential recess of the inner part.

Abstract: The disclosure relates to a hydraulic unit of an electrohydraulic gas exchange valve control system of an internal combustion engine. The hydraulic unit includes a hydraulic housing having a receiving opening, a piston guide, and a slave piston. The piston guide is fastened in the hydraulic housing by way of self-staking with a wall of the receiving opening. The piston guide includes an outer part that brings about the self-staking and an inner part that guides the slave piston. An inner surface of the outer part is radially interspaced from the outer surface of the inner part in an axial region of the self-staking and the outer part and the inner part are connected in an axially form-locked manner so that a first end section of the outer part facing the gas exchange valve is partially or fully formed into an outer circumferential recess of the inner part.

Abstract: A hydraulic actuating system is proposed in particular for gas exchange valves of reciprocating-piston internal combustion engines having a pressure source for the hydraulic medium and having at least one pressure accumulator, which can be connected to the pressure source; and has a piston which can be displaced in a drilled hole, a compression spring and a supporting element, for the compression spring with a central opening (3), which supporting element is fixed by a spring ring wherein the supporting element is configured as a spring supporting plate (1), the axial extension of which is considerably shorter than that of the piston.

Abstract: A unitary connector for connecting hollow muntin bars transversely includes one end with barbed projections or hooks which engage openings in the planar sides of the tubular muntin bars and which also include an opposed plug which engages the hollow open end of a muntin bar. The connector includes laterally extending tabs to engage opposed panes of glass.