Patent ID: 6959672
Filing Date: 2005-11-01
Classification: F02B,F02M,Y02T

Abstract:
1. A free piston engine comprising: an energy generation and control assembly having a first side; a first combustion cylinder assembly located adjacent to the first side and including a first cylinder liner having a generally cylindrical wall that defines a first engine cylinder, which is centered about an axis of motion, and with the wall including at least one intake port and a fuel injector bore, adjacent to the at least one intake port, extending therethrough; a fuel injector having an injector nozzle and being mounted to the engine such that the injector nozzle is located in the fuel injector bore; a piston assembly including a first piston having a head portion, an opposed rear portion and a cylindrical side wall extending therebetween, with the cylindrical side wall generally centered about and extending in the direction of the axis of motion, and with the first piston being located and telescopically slidable within the first engine cylinder along the axis of motion a generally predetermined distance that defines a piston stroke; and wherein the locations in the wall of the at least one intake port and the fuel injector bore are such that the cylindrical side wall will cover the at least one intake port and the fuel injector bore for only a portion of the piston stroke.