Crankshaft supporting structure for multicylinder internal combustion combustion engines

Patent · Tue Jun 28 00:00:00 EDT 1988

OSTI ID:6873769

Fukuo, K; Chosa, M; Kazama, A; Anno, N; Kusakabe, Y

A crankshaft support structure is described for a multicylinder engine, comprising, a cylinder block of a lightweight material having a first coefficient of thermal expansion, the cylinder block extending longitudinally along the crankshaft and having a plurality of lateral extending and longitudinally spaced journal walls. Bearing caps of heavyweight material have a second coefficient of thermal expansion different from the first coefficient, a bearing cap mounted on each journal wall, the bearing caps and journal walls define bearing holes therebetween for supporting the crankshaft, a bridge of a lightweight material having a coefficient of thermal expansion which is substantially equal to the first coefficient, the bridge extending longitudinally over the bearing caps, and means mounting the bridge and bearing caps of the journal walls whereby the cylinder block and bridge undergo a substantially equal amount of thermal expansion and the bearing caps undergo a different amount of thermal expansion which is accommodated by the cylinder block and bridge.

• Assignee: Honda Giken Kogyo Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4753201
• OSTI ID: 6873769
• Resource Relation: Patent File Date: Filed date 27 Nov 1985
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
INTERNAL COMBUSTION ENGINES
SHAFTS
SUPPORTS
BEARINGS
CYLINDERS
DESIGN
LIQUID FLOW
LUBRICATING OILS
LUBRICATION
RODS
THERMAL EXPANSION
WEIGHT
ENGINES
EXPANSION
FLUID FLOW
HEAT ENGINES
LUBRICANTS
MACHINE PARTS
MECHANICAL STRUCTURES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
330100* - Internal Combustion Engines