Camshaft driving device for internal combustion engine

Patent · Tue Jun 14 04:00:00 EDT 1988

OSTI ID:6937338

Ebesu, H

A camshaft driving device for use in a double overhead cam type internal combustion engine having a cylinder block, an upper deck formed at an upper portion of the cylinder block, a cylinder head disposed on the cylinder block, a driving shaft rotatably mounted at a lower portion of the cylinder block, and a pair of camshafts rotatably mounted at an upper portion of the cylinder head, is described comprising: driving force transmitting endless chain members engaging in the reduction gear means for transmitting a driving force from the driving shaft to the pair of camshaft through the reduction gear means. The camshaft driving device further including chain tensioners for tightening the chain, a nozzle means for supplying a lubricating oil to the driving force chain members on the side of the drive shaft and an oil guide wall formed immediately above the sprocket of the transmitting portion of the reduction gear means at a lower end portion of the journal boss and lapping thereover both in the radial direction and in the axial direction of the driving shaft. A mounting boss for mounting the reduction gear means thereon is formed on the upper deck of the cylinder block.

• Assignee: Mazda Motor Corp., Hiroshima
• Patent Number(s): US 4750455
• OSTI ID: 6937338
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CYLINDERS
EFFICIENCY
ENGINES
FLUID MECHANICS
GEARS
HEAT ENGINES
HYDRAULICS
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
LUBRICATION
MACHINE PARTS
MECHANICAL EFFICIENCY
MECHANICS
OILS
OPERATION
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
SHAFTS