Bearings – Rotary bearing – Plain bearing
Reexamination Certificate
2000-12-29
2002-08-13
Hannon, Thomas R. (Department: 3682)
Bearings
Rotary bearing
Plain bearing
C029S898000
Reexamination Certificate
active
06431759
ABSTRACT:
BACKGROUND AND SUMMARY OF THE INVENTION
The invention, relates to a split bearing arrangement in a housing, particularly a crankshaft journal bearing for piston machines, as disclosed in DE-A 195 35 497.
In a known bearing arrangement, the projections provided on the bearing cover in the area of its clamping face are produced by rough mechanical finish machining of the clamping face. Preferred is a surface roughness that is produced parallel to the bearing center axis by linear milling of the dividing surface or clamping face, whose sharp-edged tips dig into the corresponding opposite clamping face of the bearing block when the journal bearing is clamped together.
A bearing cover with projections in the clamping face manufactured in this manner by no means ensures the form-fit engagement provided by a clamping face that is produced by fracture separation, so that the bearing cover must be additionally secured against transverse loads.
Thus, the object of the invention is to define a bearing arrangement with improved material anchoring.
The material anchoring provided by the invention has the advantage in a split bearing arrangement that the clampably arranged bearing cover can absorb high transverse loads, which is particularly advantageous, for example, in a V-engine.
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Krist, “Abtragen ist heute ein rationelles Fertigungsverfahren”, Technische Rundschau 16/86, pp. 20-27.
Schaede et al., “Entwicklung Elektrisch-thermischer Abtragverfahren in Deutschland”, Werkstatt und Betrieb 124 (1991) pp. 379-383.
Luchner Clemens
Malischew Franz
Mayr Karl
Wimmer Rudolf
Bayerische Motoren Werke Aktiengesellschaft
Crowell & Moring LLP
Hannon Thomas R.
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