High efficiency low-pollution engine

Details High efficiency low-pollution engine High efficiency low-pollution engine

1997-11-01

2000-02-22

Derrington, James

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

2988801, 29888061, 264640, 264641, 264642, 264643, C04B 3702

Patent

active

06026568&

ABSTRACT:
An internal combustion engine of either two-cycle or four-cycle construction including a block having at least one cylinder bore therein having sidewalls carrying a liner of a structural fiber reinforced ceramic matrix composite material disposed in sealed fiber reinforced sliding relationship within the cylinder bore, and a cylinder head sealing atop end of the cylinder bore to form a closed combustion chamber in combination with the piston. The cylinder head also has the structural fiber reinforced ceramic matrix composite material disposed on an inner surface thereof facing the combustion chamber. The preferred engine is a two-cycle engine having an externally scavenged intake system and an oil sump lubricating system thereby eliminating the need to separately mix or inject lubricating oil. Higher operating temperatures and closer tolerances allow higher fuel efficiency and less pollutant production. A preferred structural fiber reinforced ceramic matrix composite material and the method of making same is also disclosed.

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