Crosshead bearing for large two-stroke diesel engine
A cross-head, two-stroke technology, used in engine lubrication, rotating bearings, cross-heads, etc., can solve problems such as high peak pressure, steep pressure gradient, etc., and achieve the effect of low dynamic load
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[0032] A crosshead bearing 1 for a large two-stroke diesel engine according to a first embodiment is shown in FIG. 1 . The piston rod 2 is connected with a hydraulic fastening bolt to a crosshead bearing 4 provided with an axial bore 5 closed at its axial end. A one piece crosshead bearing cap 6 with an angular cutout for the piston rod 2 is fixed to the connecting rod 7 by bolts 8 and nuts 9 tightened by hydraulic jacks. The bearing cap 6 is provided with a thin walled upper steel casing 10 adjoining the inner bearing surface with white metal. The connecting rod 7 is provided with an integral seat 11 holding a thin-walled lower steel shell 12 adjoining the inner bearing surface, for example with white metal. The lower shell 12 within the seat 11 effectively functions as a unitary member, but may also be formed from two or more sections that are stacked closely together to form a continuous bearing surface, i.e. between the parts forming the shell. The transitions are tight ...
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