ROTARY PISTON INTERNAL COMBUSTION ENGINE

Title:

ROTARY PISTON INTERNAL COMBUSTION ENGINE

Document Type and Number:

WIPO Patent Application WO/1992/014909

Kind Code:

A1

Abstract:

A rotary piston internal combustion engine having a structure wherein a curve determining a side surface profile of a cylindrical hollow of a housing is set to a synthetic trochoid or parallel synthetic trochoid as a locus of a creation point of a peritrochoid obtained by fixing a base circle of the peritrochoid to an eccentric arm of a hypotrochoid so that the base circle of the peritrochoid is concentric with a rotating circle of the hypotrichoid and by fixing the eccentric arm of the peritrochoid to a creation arm of the hypotrochoid so that the center of the rotating circle of the peritrochoid becomes the creation point of the hypotrichoid, and wherein a curve determining a profile of a section of the rotary piston becomes an inner envelope line of a group of curves of the synthetic trochoid or an inner envelope line of a group of curves of the parallel synthetic trochoid. The rotary piston revolves round the origin O while performing a planetary motion with a point Q being the center, with the rotation of the rotary piston. Accordingly, a displacement of an operation chamber can be changed with the rotation of the rotary piston.

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Inventors:

KURAMASU YASUO (JP)
KURAMASU TOKIKO (JP)

Application Number:

PCT/JP1992/000175

Publication Date:

September 03, 1992

Filing Date:

February 20, 1992

Export Citation:

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Assignee:

KURAMASU YASUO (JP)
KURAMASU TOKIKO (JP)

International Classes:

F02B53/00; F01C1/22; F02B55/00; F02B55/14; F02B75/02; (IPC1-7): F01C1/22; F02B55/14

Foreign References:

JPS6039361A	1985-03-01
JPS51104110A	1976-09-14

Other References: