Lubricating system for horizontal cylinder overhead valve engine

Patent · Tue Aug 25 04:00:00 EDT 1987

OSTI ID:6092862

Mitadera, T; Shirai, T; Nakagawa, T; Watanabe, K

A lubricating system is described for an internal combustion engine having: a cylinder with a substantially horizontal axis and a valve at the head therefor; a crank chamber for accumulating lubricating oil; an air-oil separating chamber for accommodating a part of a mechanism for operating the valve; a breather passage connecting the crank chamber and the air-oil separating chamber for supplying oil mist to the valve operating mechanism; and a lubricating-oil returning passage which is disposed under the breather passage such as to connect the crank chamber and the air-oil separating chamber and through which the lubricating oil accumulated in the air-oil separating chamber flows towards the crank chamber, the system comprising means disposed in the breather passage in such a manner as to allow a fluid to flow solely toward the air-oil separating chamber and means disposed in the lubricating-oil returning passage in such a manner as to impart to the flow of the fluid toward the air-oil separating chamber a resistance higher than that of the fluid flow toward the air-oil separating chamber through the breather passage.

• Assignee: Kawasaki Jukogyo Kabushiki Kaisha, Kobe
• Patent Number(s): US 4688529
• OSTI ID: 6092862
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
AIR
CIRCULATING SYSTEMS
CONTROL EQUIPMENT
CYLINDERS
ENGINES
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FLUIDS
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
LUBRICATION
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
SEPARATION EQUIPMENT
VALVES
VAPORS