F - Mech Eng,Light,Heat,Weapons – 16 – C
Patent
F - Mech Eng,Light,Heat,Weapons
16
C
26/151, 74/286
F16C 3/10 (2006.01)
Patent
CA 1323775
ABSTRACT OF THE DISCLOSURE In the case of this process, the crankshaft is assembled from individual formed pieces each comprising a crank web and two journal projections. Journal parts belonging together are slid onto a joint sleeve which is plastically deformed by applying pressure, whereas the journal parts themselves are only deformed elastically, and as a result of their spring- back, they provide the necessary adhesion for the connection. Prior to being joined, the bearing journals and crank journals may be provided with bearing bushes of a material having better tribological properties and/or undivided roller bearings and also undivided connecting rods. Lubricating channels provided in the webs, annular spaces remaining between the sleeves and journals and longitudinal grooves provided in the former permit continuous lubrication of the bearing faces. Key teeth provided at the parts to be joined ensure accurate orientation of the parts relative to each other. The expanding pressure devices may be inserted into the interior of the sleeves through apertures provided in the webs. The process is also suitable for producing crankshafts whose bearing and crank journals overlap in the axial direction. Further stages of the process permit a reduction in the number of operations and relate to the arrangement of intermediate layers which improve adhesion or the leakproofness between the parts.
582408
Maus Wolfgang
Swars Helmut
Emitec Gesellschaft Fur Emissionstechnologie Mbh
Ridout & Maybee Llp
LandOfFree
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