Abstract: A mold which can be used for low-pressure casting, in particular, and has at least two mold parts, comprises a feeder channel which is clamped between the two mold parts at an attachment flange thereof, which is parallel to the parting plane of the mold parts. On a side of the feeder channel provided with inlet channels, which lead from the feeder channel to the mold cavity, the attachment flange of the feeder channel is connected to one of the two mold parts in such a way that it seals against the mold, while having an edge area of the flange which is unconnected and can, therefore, expand under the action of heat.

Abstract: A casting core for an intake pipe assembly for an in-line four to six cylinder internal combustion engine. Core parts for each two similar individual intake pipes form, together with the core parts for the intermediate part of the intake manifold, an integral core segment. The core segments are permanently connected to one another in a vicinity of their core parts for the intake manifold.

Abstract: An intake-pipe assembly is provided for use with internal combustion engines of the type including four to six cylinders arranged in line. The intake assembly includes an intake manifold and a plurality of intake pipes opening into respective opposite sides of the intake manifold and extending to engine inlet channel means. The intake pipes are configured so as to have substantially equal lengths and so as to extend from openings at one plane at the manifold to openings at the engine inlet channel means in a plane at right angles to the manifold connection plane. In order to optimize the utilization of space while also optimizing and maximizing the radius of curvature of the intake pipes, the pipes are arranged with intermediate curved segments which overlap one another and extend in respective planes which intersect with one another in the vicinity of a common intersection area for the intermediate curved segments and connecting end portions leading therefrom to the engine inlet channel.