US 4,395,977 AGranted

Reciprocate internal combustion engine

OwnerNikolaos S. Pahisinventor

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Abstract

A four-stroke reciprocate internal combustion engine which has at least one conventional piston mounted on a carrier body of a power transmission mechanism and both sliding in line on sliding means attached to the engine stator in a linear reciprocate motion. On said carrier is mounted a framed-type internally or externally teethed gear which can be fixed or sliding independently in a linear reciprocate motion perpendicular to the carrier's linear reciprocate motion. A circular-type externally teethed gear which is mounted on a rotatable power transmission shaft engages the teeth of the framed-type gear and they are held in constant engagement with the help of one or more independent and freely rotating follower rollers rolling on the external or internal surface of the framed-type gear exactly at the opposite side of gear's engagement point. Said power transmission shaft is mounted on bearing blocks which can be mounted fixed on the engine stator or can slide on sliding means attached to the engine stator in a linear or radian motion perpendicular to the carrier's linear reciprocate motion.

In a linearly reciprocating internal combustion engine, a power transmission mechanism for converting linear reciprocating motion of a piston (10) to a continuous rotary motion of a drive shaft (90) comprising:

a vertically oriented stator body assembly (20);
a cylindrical piston (10) within one end of the stator assembly adapted to move vertically therewithin;
a piston rod (11) fixedly connected to a central area of and extending longitudinally below the axis of the piston;
a carrier body assembly (40) fixedly connected to and centered longitudinally below the piston rod;
sliding blocks (50, 51) mounted within the stator body (20) for slidingly engaging a portion of the carrier body assembly to permit guided, vertical, reciprocal motion of the carrier body within the stator body as the piston reciprocates;
a sliding gear frame assembly (60) including upper and lower horizontal end portions (62, 61) slidingly mounted within the carrier body assembly (40) for simultaneous reciprocating horizontal movement (M-2) of the gear frame within the carrier body as the carrier body moves vertically (M-1), said gear frame assembly further including,
(a) roller means (121, 120) on the upper and lower horizontal end portions (62, 61), for cooperating with mating channels (45, 72) on the carrier body assembly to permit relative sliding horizontal motion therebetween,
(b) a vertically oriented, internally toothed oval gear having semi-circular upper and lower portions (65, 66) and straight side portions (63, 64),
(c) a track surface (73, 74) surrounding the oval gear, between the upper and lower horizontal end portions (62, 61) and
(d) transmission drive shaft mounting means, including
(i) a circular externally toothed gear (80) meshed within said oval gear and engaging (81) said drive shaft (90) to impart rotational movement (M-3);
and
(ii) a pair of rollered positioner arms (112, 113, 102, 103, 110, 111) joining the drive shaft (90) to the track surface (73, 74) for maintaining firm engagement between the circular gear (80) and the oval gear throughout the reciprocating cycle,
whereby the circular gear (80) and drive shaft (90) remain in a fixed location within the stator body (20) directly below the piston rod (11) as the gear frame assembly (60) moves vertically and horizontally, and the circular gear remains in continuous engagement with the oval gear.

11 more elements

Abstract

Claims1