Patent ID: 6880500
Filing Date: 2005-04-19
Classification: F01N,F02B,F02M,Y02T

Abstract:
1. An internal combustion engine system: an internal combustion engine comprising a number of piston cylinders, a piston slidably disposed within each cylinder, each cylinder comprising an exhaust gas port disposed therethrough positioned near a bottom portion of the cylinder so that the port is exposed when the piston is at the bottom of its stroke within the cylinder, and that is covered when the piston moves upwardly in the cylinder towards the top of its stroke; and means for receiving a volume of exhaust gas routed from the piston cylinder exhaust gas port of one piston cylinder when the piston within the cylinder is at the bottom of a work stroke, and directing the same volume of receiving gas to the exhaust gas port or another piston cylinder having its piston at the bottom of its compression stroke.