Method to reduce noise in the operation of port-controlled, two-

Details Method to reduce noise in the operation of port-controlled, two- Method to reduce noise in the operation of port-controlled, two-

1981-12-28

1984-07-10

Burns, Wendell E.

Internal-combustion engines

Two-cycle

Rear compression

123 65P, 123 65PE, 123 73V, 123 73A, F02B 3304, F02B 2514

Patent

active

044586361

ABSTRACT:
The invention relates to a method and to a port-controlled two-stroke internal combustion engine in which the cross-sections of the intake and outlet are so constructed in the direction of the longitudinal axis of the cylinder that in the case of an upward or downward movement of the piston, the noise-generating intake and outlet pressure gradients and amplitudes are reduced by the gradual opening of the particular intake and outlet, the piston lower edge and intakes having special constructions.

REFERENCES:
patent: 960797 (1910-06-01), Blair
patent: 3945354 (1976-03-01), Johnston

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