Apparatus, systems, and methods to address evaporative cooling and wet compression for engine thermal management

摘要

An apparatus including a reciprocating internal combustion engine with at least one piston and cylinder set and an intake stream; at least one liquid atomizer in fluid communication with the intake stream operable to provide a plurality of liquid droplets with a diameter less than 5 μm to the intake stream; and a controller where the controller is able to adjust an index of compression for the engine by: calculating a wet compression level in response to an engine operating limit and adjusting the at least one liquid atomizer in response to the wet compression level.

主权项

1. An apparatus comprising:
an internal combustion engine with at least one piston and at least one cylinder and an intake stream; one or more liquid atomizers in fluid communication with the intake stream structured to provide a plurality of liquid droplets with a mean diameter less than 10 μm to the intake stream, wherein the liquid droplets comprise a solution that includes water and fuel; a controller structured to calculate an amount of the plurality of liquid droplets in response to an engine operating limit, the amount of the plurality of liquid droplets configured to fully vaporize during a compression stroke of the engine, the fully vaporizing configured to provide a transition from a wet compression state to a dry compression state during the compression stroke within the at least one cylinder; and wherein the one or more liquid atomizers are responsive to the controller to provide the calculated amount of the plurality of liquid droplets.