System and method for injecting condensate in cylinder of a reciprocating engine

A system, comprising:

• a controller having a processor, a memory, and instructions stored on the memory and executable by the processor to control a condensate injection system configured to fluidly couple to a combustion chamber of a reciprocating engine and an exhaust gas recirculation (EGR) system of the reciprocating engine, wherein the condensate injection system comprises a condensate tank configured to store condensate collected from the EGR system, a pump fluidly coupled to the condensate tank, and an injector fluidly coupled to the pump, wherein the controller is configured to:
• control the injector to inject condensate into the combustion chamber at one or more intervals during all or part of a first portion of an engine cycle of the reciprocating engine, wherein the first portion of the engine cycle includes:
• at least an end portion of a power stroke, comprising a first crank angle window from a first crank angle at least 20 degrees before a first end of the power stroke to a second crank angle at the first end of the power stroke;
• and
• all or part of an exhaust stroke of the engine cycle, comprising a second crank angle window from a third crank angle at the first end of the power stroke to a fourth crank angle at or before a second end of the exhaust stroke.

A method, comprising:

• controlling, via a controller, a condensate injection system configured to fluidly couple to a combustion chamber of a reciprocating engine and an exhaust gas recirculation (EGR) system of the reciprocating engine, wherein the condensate injection system comprises a condensate tank configured to store a condensate collected from the EGR system, a pump fluidly coupled to the condensate tank, and an injector fluidly coupled to the pump, wherein controlling comprises:
• controlling the injector to inject the condensate into the combustion chamber at one or more intervals during all or part of a first portion of an engine cycle of the reciprocating engine, wherein the first portion of the engine cycle includes:
• at least an end portion of a power stroke, comprising a first crank angle window from a first crank angle at least 20 degrees before a first end of the power stroke to a second crank angle at the first end of the power stroke;
• and
• all or part of an exhaust stroke of the engine cycle, comprising a second crank angle window from a third crank angle at the first end of the power stroke to a fourth crank angle at or before a second end of the exhaust stroke.