Crankshaft supporting structure for multicylinder internal combustion engines

Patent · Tue Mar 08 04:00:00 EST 1988

OSTI ID:5057064

Fukuo, K; Ito, T; Ichida, K

A crankshaft supporting structure in a multicylinder internal combustion engine is described including a bearing caps secured respectively to journal walls integral with a crankcase of a cylinder block, a crankshaft rotatably supported between the journal walls and the bearing caps, at least one counterweight on the crankshaft, and a bridge interconnecting the bearing caps. The bridge includes integral baffle plates extending between locations of the bearing caps and curved along a path of outer peripheral surfaces of each counterweight on the crankshaft. The bridge includes an oil supply gallery which extends substantially along a length of the bridge and generally parallel to the crankshaft and branch passages are provided in the bridge and the bearing caps extending from the gallery to a bearing hole defined by each journal wall and bearing cap.

• Assignee: Honda Giken Kogyo Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4729352
• OSTI ID: 5057064
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
BAFFLES
BEARINGS
CONTROL EQUIPMENT
CYLINDERS
DESIGN
ENGINES
EQUIPMENT
FLOW REGULATORS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
MECHANICAL STRUCTURES
PLATES
SHAFTS
SUPPORTS