US 12,372,016 B1
Self-charged four stroke one-cycle combustion cylinder for internal combustion engine
Ibrahim Hanna, Miami, FL (US)
Filed by Ibrahim Hanna, Miami, FL (US)
Filed on Apr. 24, 2024, as Appl. No. 18/644,655.
Int. Cl. F01M 1/16 (2006.01); F01M 1/08 (2006.01); F02B 25/02 (2006.01); F02D 13/02 (2006.01); F02F 7/00 (2006.01); F02F 11/00 (2006.01); F02M 35/10 (2006.01); F16J 9/12 (2006.01)
CPC F01M 1/16 (2013.01) [F01M 1/08 (2013.01); F02B 25/02 (2013.01); F02D 13/0234 (2013.01); F02F 7/0087 (2013.01); F02F 11/00 (2013.01); F02M 35/10157 (2013.01); F02M 35/10255 (2013.01); F16J 9/12 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An internal combustion engine comprising:
a cylinder defining an internal space segmented into a pre-compression space and a combustion space, wherein a bore size of said cylinder is greater than that of a crank-shaft piston housed within;
an occupying structure situated within the cylinder, acting as a secondary piston and configured to reciprocate in unison with the crank-shaft piston;
an oil socket located adjacent to the occupying structure, the oil socket comprising a first outer sleeve connected to an upper part of the occupying structure and a second inner sleeve connected to a lower part of the occupying structure, wherein the second inner sleeve is designed to enclose the crank-shaft piston, facilitating reciprocation therein;
wherein the oil socket is configured for direct lubrication from an engine oil sump to the cylinder's internal surfaces without contaminating the combustion space and configured for supporting exhaust scavenging; and
an air intake assembly capable of directing air into the pre-compression space during a power stroke, with the air being inductively transferred to the combustion space during a retraction stroke via the use of one-way valves.