Crankshaft supporting and lubricating structure for multicylinder internal combustion engines

Patent · Tue Apr 14 04:00:00 EDT 1987

OSTI ID:6492930

Anno, N

This patent describes a crankshaft supporting and lubricating device in a multicylinder internal combustion engine having bearing caps secured to journal walls of a cylinder block rotatably supporting a crankshaft between the bearing caps and the journal walls with a bridge interconnecting the bearing caps. The improvement described here comprises: the bearing caps and the bridge having branch oil passages defined therein for supplying lubricating oil to bearings of the crankshaft; the branch oil passages being deviated to one side from a cylinder axis passing through the center of the crankshaft; the bridge having a main gallery defined therein in communication with the branch oil passages and also deviated to the one side; and the bridge and one of the bearing caps having an oil passage defined therein on the one side and providing communication between the main gallery and a pressurized oil source.

• Assignee: Honda Giken Kogyo Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4656983
• OSTI ID: 6492930
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
BEARINGS
CYLINDERS
ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
LUBRICATION
MACHINE PARTS
MECHANICAL STRUCTURES
MOTION
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PRESSURIZING
ROTATION
SHAFTS
SUPPORTS
WALLS