2-cycle engine of an active thermoatmosphere combustion type
A description is given of a 2-cycle engine comprising: an engine body having therein a cylinder bore and a crank room which has a bottom wall; a piston reciprocally movable in said cylinder bore, said piston and said cylinder bore defining a combustion chamber; an intake passage having mixture forming means therein for introducing a fresh combustible mixture into said crank room; an exhaust passage having an exhaust port opening into said combustion chamber for discharging exhaust gas into the atmosphere; transfer passage means communicating said crank room with an inlet port opening into said combustion chamber for leading the fresh combustible mixture into said combustion chamber from said crank room; restricting means arranged in said transfer passage means at a position near said combustion chamber for restricting the cross-section of said transfer passage means; and means for recirculating the exhaust gas into said intake passage from said exhaust passage.
- Assignee:
- Toyota Jidosha Kogyo K K (Japan)
- Patent Number(s):
- US 4213431
- OSTI ID:
- 5077239
- Country of Publication:
- United States
- Language:
- English
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