Internal combustion engine with modified shaft

Abstract

In one embodiment, an improvement to a four-stroke engine having a single cylinder block arrangement including an engine block, timing gears, crankshaft and gear, timing belt/chain, intake port, exhaust port, and cylinder head arrangement includes a ported rotating shaft, the ported rotating shaft having a first port, the ported rotating shaft synchronized with the crankshaft, such that the first port periodically aligns with the intake port to allow for intake during the four-stroke cycle.

1 . An improvement to a four-stroke engine having a single cylinder block arrangement including an engine block, timing gears, crankshaft and gear, timing belt/chain, intake port, exhaust port, and cylinder head arrangement, the improvement comprising:
 a ported rotating shaft, the ported rotating shaft having a first port, the ported rotating shaft synchronized with the crankshaft, such that the first port periodically aligns with the intake port to allow for intake during the four-stroke cycle.   
     
     
         2 . The improvement of  claim 1  wherein the first port periodically aligns with the exhaust port to allow for exhaust during the four-stroke cycle. 
     
     
         3 . The improvement of  claim 1  wherein the ported rotating shaft has a second port, and the second port periodically aligns with the exhaust port to allow for exhaust during the four-stroke cycle. 
     
     
         4 . The improvement of  claim 2  wherein the first port periodically is unaligned with both the intake port and the exhaust port. 
     
     
         5 . The improvement of  claim 4  wherein compression occurs during a period of non-alignment. 
     
     
         6 . An improvement to a four-stroke engine having a single cylinder block arrangement including an engine block, timing gears, crankshaft and gear, timing belt/chain, intake port, exhaust port, and cylinder head arrangement, the improvement comprising:
 a first- and second-ported rotating shaft, the first- and second-ported rotating shaft each having a port, the first-ported rotating shaft synchronized with the crankshaft, such that the port of the first-ported rotating shaft periodically aligns with the intake port to allow for intake during the four-stroke cycle, and the second-ported rotating shaft synchronized with the crankshaft, such that the port of the second-ported rotating shaft periodically aligns with the exhaust port to allow for exhaust during the four-stroke cycle.   
     
     
         7 . A four-stroke engine comprising:
 (a) an intake port;   (b) an exhaust port; and   (c) a ported rotating shaft, synchronized with the four-stoke engine, the ported rotating shaft having a port, the port periodically aligning with the intake port and the exhaust port to allow for intake of air and output of exhaust during the four-stroke cycle.   
     
     
         8 . The four stroke engine of  claim 5  wherein a timing belt synchronizes the ported rotating shaft. 
     
     
         9 . A four-stroke engine comprising: an engine block, timing gears, crankshaft and gear, timing belt/chain, intake port, exhaust port, and cylinder head arrangement, wherein valves for intake and exhaust are omitted and the four-stroke cycle is maintained.