Stratified scavenging two-cycle engine
AssigneeHusqvarna Zenoah Co., Ltd.
InventorsRyou Ono, Takashi Ohniwa, Akiyoshi Sekine
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Abstract
A stratified scavenging two-cycle engine (10) comprising an engine body (11), a carburetor (12) equipped with a pivotable rotary valve (22) for switching between opening and closing of a single intake path, and an insulator (13) having heat insulating performance. The rotary valve (22) of the carburetor (12) is provided with a fuel injecting nozzle opening (26) open downward. Fuel from the nozzle opening (26) is injected in the directions corresponding to a mixed gas path (27) and to that portion of an air path (28) which is upstream in the mixed gas path (27).
Claims4
A stratified scavenging two-cycle engine comprising:
- an engine body provided with an intake port through which mixed gas flows in and an air port through which leading air flows in,
- a carburetor that is provided with a pivotable rotary valve for switching between opening and closing of one intake path and which generates said mixed gas and leading air in said intake path, and
- an insulator that is provided with a mixed gas path for circulating said mixed gas and an air path for circulating said leading air and which is arranged between said engine body and carburetor, wherein
- a nozzle opening for ejecting fuel, opened in a direction perpendicularly crossing the direction of intake air flow from the rotary shaft center side is provided with said rotary valve, and
- the fuel from said nozzle opening is ejected in a direction corresponding to a direction upstream in said mixed gas path among said mixed gas path and said air path.
Dependencies are inferred from the claim text.