Patent ID: 7597084
Filing Date: 2009-10-06
Classification: F02B,F02M,Y02T

Abstract:
1. An internal combustion engine comprising: an engine housing including a plurality of cylinders each having a piston positioned at least partially therein and each piston having a piston bowl with a reentrancy ratio of at least about 1.15:1 and an aspect ratio of at least about 3.5:1 and is movable a stroke distance to increase a pressure of the corresponding cylinder to a pressure sufficient for compression ignition of fuel, wherein a diameter of said cylinders and a length of said stroke distance defines a displacement of said internal combustion engine; a crankshaft coupled with each of said pistons and rotatable via combustion of fuel in each of said cylinders; and a plurality of fuel injectors having fixed positions relative to said engine housing and including at least one fuel injector extending into each one of said cylinders and configured to inject a liquid fuel therein at an injection pressure via a plurality of outlet orifices; wherein said engine is configured to burn a quantity of injected fuel in each of said cylinders to yield at least about 150 horsepower per liter of engine displacement at a smoke output of less than about 0.4 grams smoke per horsepower-hour and a fuel consumption of less than about 250 grams fuel per kilowatt-hour output of said engine.