Systems, methods and apparatus are disclosed for providing or maintaining a target surge margin at the compressor during steady state engine operating conditions and to avoid compressor surge during transients by controlling a compressor recirculation valve position to a commanded position. The estimated surge margin can be determined in response to the measured pressure ratio across the compressor, an estimated compressor flow, and a compressor map for the compressor.

An engine system includes an intake manifold and a charge-air cooler disposed upstream of the intake manifold. The charge-air cooler includes a housing defining an enclosure having a water reservoir, a heat exchanger disposed within the enclosure, and a valve disposed within the enclosure. The valve has a flap that is movable between an open position in which airflow is permitted across the water reservoir and a closed position is which airflow across the water reservoir is inhibited.

An engine system includes an intake manifold and a charge-air cooler disposed upstream of the intake manifold. The charge-air cooler includes a housing defining an enclosure having a water reservoir, a heat exchanger disposed within the enclosure, and a valve disposed within the enclosure. The valve has a flap that is movable between an open position in which airflow is permitted across the water reservoir and a closed position is which airflow across the water reservoir is inhibited.

The invention relates to a charge air cooler (5) for fuel engine comprising: a casing having an inlet (16) and an outlet (20), a heat exchanger (10) within the casing between the inlet (16) and the outlet (20), a thermally responsive draining mechanism (50, 60) for draining condensates, the draining mechanism (50, 60) being configured to drain condensates when temperature within the charge air cooler (5) is below a defined temperature, draining mechanism comprising a drain port (58, 68), a valve (51, 61, 52, 62, 53, 63) arranged on the drain port (58, 68), an actuation device (53, 63, 64) for moving the valve between an opened state and a closed state,
wherein the actuation device includes a phase change material.

The invention relates to a charge air cooler (5) for fuel engine comprising: a casing having an inlet (16) and an outlet (20), a heat exchanger (10) within the casing between the inlet (16) and the outlet (20), a thermally responsive draining mechanism (50, 60) for draining condensates, the draining mechanism (50, 60) being configured to drain condensates when temperature within the charge air cooler (5) is below a defined temperature, draining mechanism comprising a drain port (58, 68), a valve (51, 61, 52, 62, 53, 63) arranged on the drain port (58, 68), an actuation device (53, 63, 64) for moving the valve between an opened state and a closed state,
wherein the actuation device includes a phase change material.

A remote fuel supply system comprising a fuel transfer unit for managing the flow of fuel from a remote fuel tank and onboard auxiliary tank to an engine. The system may include an engine unit comprising an onboard auxiliary tank, a remote fuel supply unit comprising a remote fuel tank, and a fuel transfer unit. The fuel transfer unit may include a housing featuring multiple inlets for receiving fresh fuel from the fuel supply unit and unburnt fuel from the engine unit, and the housing may include multiple outlets connected to diverter valves for selectively transferring fuel to the engine unit from the fuel supply sources; namely, the fresh fuel from the fuel supply unit and/or the unburnt fuel from the engine unit.

A remote fuel supply system comprising a fuel transfer unit for managing the flow of fuel from a remote fuel tank and onboard auxiliary tank to an engine. The system may include an engine unit comprising an onboard auxiliary tank, a remote fuel supply unit comprising a remote fuel tank, and a fuel transfer unit. The fuel transfer unit may include a housing featuring multiple inlets for receiving fresh fuel from the fuel supply unit and unburnt fuel from the engine unit, and the housing may include multiple outlets connected to diverter valves for selectively transferring fuel to the engine unit from the fuel supply sources; namely, the fresh fuel from the fuel supply unit and/or the unburnt fuel from the engine unit.

The invention provides a cogeneration system capable of adjusting a heat-to-electric power ratio not only in an increasing direction, but also in a decreasing direction. The cogeneration system includes: a power generation device configured to supply electric power; a first heat exchanger configured to exchange heat between exhaust of the power generation device and water, so as to lower a temperature of the exhaust and obtain steam from the water; a reformer configured to generate a reformed gas by the steam reacting with a fuel; a second heat exchanger configured to cool the reformed gas generated by the reformer by heat exchanging; a reformed gas supply device configured to supply the reformed gas cooled by the second heat exchanger to the power generation device; a distributor configured to supply the steam to at least one of the reformer and a heat utilization device; and a control device configure to adjust a heat-to-electric power ratio by changing a supply destination of the steam in the distributor.

An engine system includes an internal combustion engine having an engine block with one or more piston-cylinder arrangements communicating with an intake manifold and an exhaust manifold, a charge air passageway to the intake manifold, and an exhaust gas passageway that receives exhaust gas from the exhaust manifold. The engine system also includes one or more turbochargers each including a compressor to compress charge air and output the compressed charge air to the charge air passageway and a turbine that receives exhaust gas from the exhaust gas passageway and drives the compressor in response to the exhaust gas passing through the turbine. An air pump is positioned downstream of the compressor that supplies a portion of the compressed charge air into the exhaust gas passageway upstream of the turbine, such that the turbine receives both exhaust gas and compressed charge air.

An engine system includes an internal combustion engine having an engine block with one or more piston-cylinder arrangements communicating with an intake manifold and an exhaust manifold, a charge air passageway to the intake manifold, and an exhaust gas passageway that receives exhaust gas from the exhaust manifold. The engine system also includes one or more turbochargers each including a compressor to compress charge air and output the compressed charge air to the charge air passageway and a turbine that receives exhaust gas from the exhaust gas passageway and drives the compressor in response to the exhaust gas passing through the turbine. An air pump is positioned downstream of the compressor that supplies a portion of the compressed charge air into the exhaust gas passageway upstream of the turbine, such that the turbine receives both exhaust gas and compressed charge air.