US 11,053,884 B2
Internal combustion engine
Clyde Coutts, Erinsville (CA)
Assigned to Coutts Industries Inc., Erinsville (CA)
Filed by Coutts Industries Inc., Erinsville (CA)
Filed on Sep. 24, 2020, as Appl. No. 17/31,226.
Claims priority of application No. CA 3056503 (CA), filed on Sep. 24, 2019.
Prior Publication US 2021/0087996 A1, Mar. 25, 2021
Int. Cl. F02F 3/20 (2006.01); F02F 1/42 (2006.01); F02M 35/10 (2006.01); F02M 35/104 (2006.01); F02B 75/02 (2006.01); F02B 75/32 (2006.01); F02B 33/06 (2006.01); F02B 33/30 (2006.01); F16H 21/36 (2006.01); F16J 9/28 (2006.01)
CPC F02F 3/20 (2013.01) [F02B 33/06 (2013.01); F02B 33/30 (2013.01); F02B 75/02 (2013.01); F02B 75/32 (2013.01); F02F 1/4285 (2013.01); F02M 35/104 (2013.01); F02M 35/10216 (2013.01); F02B 2075/027 (2013.01); F16H 21/365 (2013.01); F16J 9/28 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An internal combustion engine, comprising:
a hollow cylinder;
a cylinder head;
at least one exhaust valve disposed in the cylinder head for discharge of exhaust gases;
at least one fuel injector;
a piston within the hollow cylinder, the piston having at least one intake port that provides a passage for fluid flow through the piston;
a transfer valve disposed within a transfer valve housing of the piston, the transfer valve being configured to render the at least one intake port of the piston in an opened or closed state;
a base valve assembly disposed at a base of the cylinder that opens and closes to permit or restrict fluid flow into a sub-chamber below the piston;
wherein the internal combustion engine operates according to a four-stroke piston cycle including multiple fluid intake stages;
wherein during at least a first fluid intake stage the at least one intake port of the piston is in the opened state and an air-fuel mixture flows from the sub-chamber below the piston to a combustion chamber above the piston.