Rotary-reciprocal combustion engines

A rotary-reciprocal combustion engine having a cycle of two strokes, compression and expansion wherein exhaust and intake takes place at the end of the expansion stroke;

• said engine comprising:
• a) a housing formed with a peripheral wall with side walls, a piston in said housing, the inner surface of said peripheral inner wall being cylindrical, said housing having a laterally and peripherally spaced cylinder chamber formed with walls consisting of the inner cylindrical surface of the peripheral housing wall, a peripheral area of one side wall and an inner circular wall attached to said front side wall of the housing and extending parallel with the peripheral wall toward the center of the housing thereby leaving space in the middle of the housing for the piston and rotor to rotate and reciprocate, said one side wall having equally spaced arcuate recesses projecting into the cylinder chambers, the arcuate recesses have a longer inner surface from the minimum arcuate recess to the maximum arcuate recess and shorter inner surface from the maximum arcuate to the minimum arcuate recess, said housing having an anterior central chamber and a posterior compression chamber separated by the piston and being provided with means for admitting oil, a gaseous mixture and/or air communicating with said cylinder chambers, means for discharging combustion products communicating with said cylinder chambers, said posterior compression chamber having means for admitting and discharging oil, a gaseous mixture and/or air;
• b) said piston formed with a thick anterior peripheral wall and one side wall at 90 degrees to the peripheral wall, said peripheral wall is cylindrical, said thick peripheral wall is the anterior wall of the piston, having equally spaced waves on the said side wall of the piston, said waves being of equal number and shape as said arcuate recesses, wherein the number of waves and arcuate recesses is two or more, the piston having means to divide the housing's cylinder chamber into two or more sealed cylinder chambers, said piston's posterior wall extends at 90 degrees to peripheral surface of the piston, having a centrally located hub which has an opening in the center of the hub for reciprocating on the rotor and rotating with the rotor, the piston having means to divide the housings cylinder chambers into 2 or more sealed cylinder chambers, piston is rotatably and reciprocally mounted in said housing with the piston waves movably mounted in each of said arcuate recesses respectively remaining in sealing contact with said cylinder chamber walls;
• c) a rotor;
• mounted in the center of the housing on the shaft and rotates with the shaft, said piston reciprocates on the rotor and rotates with the rotor;
• d) a shaft;
• rotatably mounted in the center of the housing, with a rotor attached to the shaft, said shaft extends through the side walls of the housing;
• e) a reciprocal and rotary guide having means to guide the piston's rotary and reciprocal motions while keeping the piston in continuous sealing contact with said cylinder chambers walls and varying the volume of the cylinder chambers enabling a compression of a gaseous mixture to take place after aspirating a gaseous mixture;
• f) an ignition system having means for igniting compressed gaseous mixture and expansion of said cylinder chambers due to pressure of said combustion products.

A rotary-reciprocal combustion engine having a cycle which includes the four strokes of intake, compression, expansion and exhaustion, said engine comprising of:

• a) a housing formed with a peripheral wall with side walls, a piston in said housing, the inner surface of said peripheral inner wall being cylindrical, said housing having a laterally and peripherally spaced cylinder chamber formed with walls consisting of the inner cylindrical surface of the peripheral housing wall, a peripheral area of one side wall and an inner circular wall attached to said front side wall of the housing and extending parallel with the peripheral wall toward the center of the housing thereby leaving space in the middle of the housing for the piston and rotor to rotate and reciprocate, said one side wall having equally spaced arcuate recesses projecting into the cylinder chambers, the arcuate recesses have a longer inner surface from the minimum arcuate recess to the maximum arcuate recess and shorter inner surface from the maximum arcuate to the minimum arcuate recess, said housing having an anterior central chamber and a posterior compression chamber separated by the piston and being provided with means for admitting oil, a gaseous mixture and/or air, communicating with said cylinder chambers, means for discharging combustion products communicating with said cylinder chambers, said posterior compression chamber having means for admitting and discharging oil, a gaseous mixture and/or air;
• b) said piston formed with a thick anterior peripheral wall and one posterior side wall at 90 degrees to the peripheral wall, said peripheral wall is cylindrical, said thick peripheral wall is the anterior wall of the piston, having equally spaced waves on the said side wall of the piston, said waves being of equal number and shape as said arcuate recesses, wherein the number of waves and arcuate recesses are two or more, the piston having means to divide the housing's cylinder chamber into two or more sealed cylinder chambers, said piston's posterior wall extends at 90 degrees to peripheral surface of the piston, having a centrally located hub which has an opening in the center of the hub for reciprocating on the rotor and rotating with the rotor, the piston having means to divide the housings cylinder chambers into 2 or more sealed cylinder chambers, piston is rotatably and reciprocally mounted in said housing with the piston waves movably mounted in each of said arcuate recesses respectively remaining in sealing contact with said cylinder chamber walls;
• c) a rotor;
• mounted in the center of the housing on the shaft and rotates with the shaft, said piston reciprocates on the rotor and rotates with the rotor;
• d) a shaft;
• rotatably mounted in the center of the housing, with a rotor attached to the shaft, said shaft extends through the side walls of the housing;
• e) a reciprocal and rotary guide having means to guide the piston's rotary and reciprocal motion while keeping the piston in continuous sealing contact with said cylinder chambers walls and varying the volume of the cylinder chambers enabling a compression of a gaseous mixture to take place after aspirating a gaseous mixture;
• f) an ignition system having means for igniting compressed gaseous mixture and expansion of said cylinder chambers due to pressure of said combustion products.

A double internal combustion engine of the rotary-reciprocal type comprising, a housing formed with a peripheral wall with side walls which contains a cylindrical inner wall attached to both of said side walls at 90 degree, inner surface of said peripheral walls being cylindrical, two peripheral circular pistons having anterior peripheral located equally spaced wave shaped side walls with the first portion of the wave from the crest of the wave to the trough of the wave being longer than the second portion of the wave from the trough of the wave to the crest of the wave, both pistons are rotatably and reciprocal mounted in said housing, a rotor, having means for the said two piston to reciprocate on and rotate with said rotor, said rotor is attached to a shaft, said shaft extending through said side walls and rotates with said rotor, said housing having two lateral and peripheral circular cylinder chamber having equally spaced arcuate recesses with the inner surface of the said arcuate recesses from the minimum recessed area to the maximum recessed area is a longer distance than the distance from the maximum recessed area to the minimum recessed area of said arcuate recesses, said arcuate recesses extending into said cylinder chamber's side walls, the number and shape of recesses being equal to the number and shape of the waves on the piston's anterior side walls and the number being 2 or more on each piston, one piston's waves are movably mounted in each of said arcuate recesses respectively of one side wall, the other piston's waves are movably mounted with the crest of the waves being opposite to the maximum arcuate recessed area of the other side wall, both piston's peripheral and inner circular surface remaining in sealing contact with the inner peripheral wall, the peripheral surface of the circular inner walls at all times and any seal on the crest of the wave of the pistons remaining in sealing contact with the inner wall's peripheral surface, peripheral housing walls' inner surface and arcuate recesses of said side walls and forming variable volume cylinder chambers between the pistons' waved side wall and said cylinder chamber walls, said housing being provided with means to admitting a gaseous mixture communicating with said cylinder chambers of both engine, means to discharge combustion products communicating with both said cylinder chambers, ignition means communicating with both said cylinder chambers, means to guide both pistons' rotary and reciprocal motions in said housing, both said cylinder chamber of varying sizes enabling a compression of a gaseous mixture to take place after suction, ignition of said compressed gaseous mixture and expansion of said cylinder chambers due to the pressure of said combustion products.