Two-cycle internal combustion engine

Details Two-cycle internal combustion engine Two-cycle internal combustion engine

1983-02-16

1984-11-13

Burns, Wendell E.

Internal-combustion engines

Two-cycle

Rear compression

123 73A, 123 73CB, 123 73F, 123575, 123432, 123433, 123 73R, F02B 3314

Patent

active

044819099

ABSTRACT:
A crankchamber precompression type two-cycle internal combustion engine including at least one cylinder assembly, each cylinder assembly including a stepped cylinder constituted by a minor diameter cylinder portion and a major diameter cylinder portion, a stepped piston received in the stepped cylinder and constituted by a minor diameter piston portion and a major diameter piston portion adapted to be fitted in the minor diameter cylinder portion and the major diameter cylinder portion respectively, a crankchamber connected to the major diameter cylinder portion, a working chamber defined between the minor diameter cylinder portion and the minor diameter piston portion, and a sub-intake chamber defined between the major diameter cylinder portion and the minor diameter piston portion. The sub-intake chamber is connected to an auxiliary carburetor set beforehand to form a mixture of fuel of high quality and air, and the crankchamber is connected to a main carburetor set beforehand to form a mixture of fuel of low quality and air. The working chamber is formed, in addition to a main scavenging port communicated with the crankchamber, with an auxiliary scavenging port which is communicated with the sub-intake chamber through a super-charging reservoir.

REFERENCES:
patent: Re27367 (1972-05-01), Von Seggeln
patent: 2032986 (1936-03-01), Howell et al.

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