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Patent Searching and Data


Title:
ENGINE DEVISED IN ITS FUNCTION AND INTAKE AND EXHAUST SYSTEMS
Document Type and Number:
Japanese Patent JPS5999036
Kind Code:
A
Abstract:

PURPOSE: To enable to discharge exhaust gas promptly, to raise the charging efficiency of intake air and to perform both of four-cycle and two-cycle operation of an engine, by forming an intake port and an exhaust port at proper positions of a cylinder in addition to an intake port and an exhaust port formed in a cylinder head.

CONSTITUTION: An exhaust port A opened when a piston is moved down to the bottom dead point as shown in the drawing is formed at a lower portion of a cylinder, and another exhaust port D opened simultaneously with starting of exhaust stroke is formed in a cylinder head. Further, a second exhaust port B is formed at the position of the cylinder located upwardly of the exhaust port A near the cylinder head so that exhaust gas is discharged smoothly and promptly from the three exhaust ports A, D, B. On the other hand, an intake port C is formed in the side wall of the cylinder at the portion thereof located between the two exhaust ports A and B so that, when the piston is moved down to a certain position at the time of suction stroke of an engine, air can be drawn from the intake port C as well as from an intake port E formed in the cylinder head.


Inventors:
Moriyasu, Keiji
Application Number:
JP1982000207547
Publication Date:
June 07, 1984
Filing Date:
November 29, 1982
Export Citation:
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Assignee:
MORIYASU KEIJI
International Classes:
F02B75/00; F01L1/44; F02B69/06; F02B75/02; (IPC1-7): F02B75/00