Piston and connecting rod assembly
AssigneeKolbenschmidt Aktiengesellschaft
InventorsPeter Reipert, Arno Kolb, Siegfried Mielke, Tjark Coners, Dean Reichenbach
Life of this patent
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Abstract
In a piston and connecting rod assembly for internal combustion engines, which assembly comprises a spherical small end portion, which is movably mounted in a recess of the piston head and in a retaining ring and which is connected to the skirt of the piston, the load-carrying capacity of the piston, which consists of a pressure-cast aluminum alloy, is increased in that the piston is reinforced by fibers, and a ring carrier which has open pores and is embedded in the ring-carrying portion and is connected thereto by a metallic bond, and a collar serving as an abutment for the retaining ring is integrally cast with the piston skirt on the inside thereof.
Claims15
In a piston and connecting rod assembly for an internal combustion engine, comprising an aluminum alloy cast piston which includes top and bottom parts and a spherical small end portion formed on the upper end of the connecting rod a spherical segment-shaped recess formed in the bottom surface of the piston head and surrounding the spherical end portion of the connecting which is movably mounted in a hingelike retaining ring detachably connected to the skirt of the piston, the improvement wherein the piston (3) is made by squeeze casting and the whole piston is reinforced by fibers except that the top part is free of fibers in a layer (7) which adjoins the spherical segment-shaped recess (6) in the bottom surface of the piston head (8), the assembly including a ring carrier (21) which has open pores completly filled with the aluminum alloy of the piston, the ring carrier being embedded in the ring-carrying portion (17) and joined thereto by a metallic bond, and a collar (16) serving as an abutment for the retaining ring (9) is integrally cast with the bottom part on the inside of the bottom part.
Dependencies are inferred from the claim text.