Auxiliary fuel supply system
Patent
·
OSTI ID:6529315
This patent describes a two cycle internal combustion engine having a fuel pump drawing fuel from a fuel tank, comprising: a piston reciprocal in a cylinder between a crankcase and a 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; carburetor means receiving fuel from the fuel pump and supplying fuel to the intake manifold; auxiliary fuel enrichment means comprising: a first fuel line having an inlet connected to the fuel pump, and having an outlet; a control valve connected to the outlet of the first fuel line, the control valve having an OFF state blocking fuel flow from the first fuel line, the control valve having an ON state passing fuel flow from the first fuel line, the control valve being operable between the ON and OFF states during running of the engine, including high speed operation where detonation may occur; a second fuel line having an inlet connected to the control valve, and having an outlet, the control valve blocking fuel flow from the first fuel line to the second fuel line in the OFF state, the control valve passing fuel flow from the first.
- Assignee:
- Brunswick Corp., Skokie, IL
- Patent Number(s):
- US 4777913
- OSTI ID:
- 6529315
- Country of Publication:
- United States
- Language:
- English
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