Idle fuel residual storage system
A two cycle internal combustion engine is described which consists of: a piston reciprocal in a cylinder between a crankcase and a combustion chamber; means for supplying fuel to the crankcase; fuel-air transfer passage means between the crankcase and the combustion chamber; the piston having a charging stroke in one direction compressing fuel-air mixture in the combustion chamber and creating a vacuum in the crankcase, and having a power stroke upon combustion of the mixture driving the piston in the opposite direction pressurizing the crankcase and forcing fuel-air mixture to flow from the crankcase through the transfer passage means to the combustion chamber for repetition of the cycle, and wherein heavy fuel ends accumulate in the crankcase; the improvement comprising: reservoir means connected to the crankcase for receiving the heavy fuel ends, the power stroke of the piston pumping the heavy fuel ends into the reservoir means; and means responsive to the engine speed for recirculating the heavy fuel ends back to the crankcase at high engine speed, and means blocking the recirculation at idle to minimize engine smoke.
- Assignee:
- Brunswick Corp., Skokie, IL
- Patent Number(s):
- US 4590897
- OSTI ID:
- 5576233
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330100* -- Internal Combustion Engines
AEROSOLS
AIR POLLUTION ABATEMENT
COLLOIDS
COMBUSTION CHAMBERS
CYLINDERS
DESIGN
DISPERSIONS
ENGINES
FUEL-AIR RATIO
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MIXTURES
PISTONS
POLLUTION ABATEMENT
PRESSURIZING
PUMPING
RESIDUES
SMOKES
SOLS
STORAGE FACILITIES
VELOCITY