Crankshaft bearing bridge for an internal combustion engine
AssigneeDr. Ing. h.c.F. Porsche Aktiengesellschaft
InventorsMichael Paul, Joachim Gruenberger
Life of this patent
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Abstract
A crankshaft bearing bridge for a reciprocating piston internal combustion engine is connected to a cylinder crankcase at a parting plane and has external longitudinal side members running at a distance from a longitudinal axis of a crankshaft. Bearing crowns for the crankshaft run between the longitudinal side members across the longitudinal axis and are provided with bore halves of bearing bores for the crankshaft crank pins. In the direction of the crankshaft longitudinal axis, the bridge bearing crowns are supported with connecting elements extending between the longitudinal side members. The bearing crowns open into the longitudinal side members, at least in the area of the parting plane, and include widened areas.
Claims19
Crankshaft bearing bridge for a reciprocating engine, the bridge being connected at a parting plane to a cylinder crankcase and having outer longitudinal side members running at a distance from a crankshaft longitudinal axis, comprising crankshaft bearing crowns aligned across the crankshaft longitudinal axis and extending between the longitudinal side members, the bearing crowns being provided with bore halves of bearing bores for crankshaft crank pins, the bearing crowns are arranged to be supported in a direction of the crankshaft longitudinal axis via connecting elements extending between the longitudinal side members, and the bearing crowns open into a longitudinal side members at least in an area on the parting plane by way of widened areas.
In a reciprocating piston engine, the improvement comprising a crankshaft bearing bridge being connected at a parting plane to a cylinder crankcase and having outer longitudinal side members running at a distance from a crankshaft longitudinal axis, crankshaft bearing crowns aligned across the crankshaft longitudinal axis and extending between the longitudinal side members, the bearing crowns being provided with bore halves of bearing bores for crankshaft crank pins, the bearing crowns are arranged to be supported in a direction of the crankshaft longitudinal axis via connecting elements extending between the longitudinal side members, and the bearing crowns opening into the longitudinal side members at least in an area of the parting plane by way of widened areas.
Dependencies are inferred from the claim text.