Patent ID: 7007639

Claim:
In combination with an internal combustion engine of the type including at least one combustion chamber which oscillates between a minimum volume and a maximum volume during alternating expansion portions and contraction portions of successive cycles for causing powered rotation of a crank shaft, a system for injecting compressed air into said combustion chamber comprising: (a) a compressed air source in communication with said combustion chamber, said compressed air source including a compressor and a compressed air conduit communicating between said compressor and said combustion chamber and said compressed air conduit further comprises (i) a reservoir for accumulating and storing said compressed air, (ii) a heat rejecting portion for cooling said compressed air, (iii) an outlet portion for conveying pressurized air to said combustion cylinder, (iv) a hot conduit for conveying uncooled compressed air to said outlet portion and (v) a cool conduit for conveying cooled pressurized air from the heat rejection portion to said outlet portion and at least one valve communicating between one of said hot conduit and said cool conduit for adjusting the proportion of cooled compressed air and uncooled compressed air for adjusting the temperature of the pressurized air in said outlet portion.