Abstract: A hybrid internal combustion engine having a cylinder, a piston disposed within the cylinder, the piston constructed and arranged to reciprocate within the cylinder, and a combustion chamber defined by the cylinder and the top of the piston. The hybrid internal combustion engine also includes an exhaust manifold and a heat exchanger disposed within the exhaust manifold. A pump disposed between the heat exchanger and a fluid reservoir is provided to deliver fluid from the reservoir to the heat exchanger, whereby the fluid in the heat exchanger is heated and turned into high pressure gas (HPG) when the combustion gases are exhausted from the combustion chamber via the exhaust manifold. The resulting HPG may then be introduced into the combustion chamber to provide a HPG power stroke.

Abstract: A turbocharger control system for a high-pressure turbocharger and a low-pressure turbocharger includes a turbo mode determination module and a transition control module. The turbo mode determination module determines a transition from a dual turbo mode to a single turbo mode. The high-pressure turbocharger is active in the dual turbo mode and idle in the single turbo mode. The transition control module determines a turbine efficiency of the high-pressure turbocharger and controls the high-pressure turbocharger during the transition based on a predetermined maximum turbine efficiency equation.

Abstract: A method of controlling an engine includes manipulating a wastegate to maintain the operation of the turbocharger within an optimum operating range. A combustion air bypass valve is manipulated between an open position and a closed position to create a negative pressure differential across a supercharger. The supercharger is sequentially disposed in-line before the turbocharger. The negative pressure differential is converted into a torque by the supercharger and transmitted from the supercharger back to the engine to increase the operating efficiency of the engine.

Abstract: An internal combustion engine with an exhaust gas manifold, an exhaust gas line, an exhaust gas turbocharger, by which the compressor provided to charge combustion air for the internal combustion engine is driven, and a bypass line, which branches from the exhaust gas line and in which a power turbine is arranged, wherein a short-circuit line branches from the bypass line and leads to a section of the exhaust gas line located downstream of the exhaust gas turbocharger. In addition, a first valve is positioned in the section of the exhaust gas line located downstream of the exhaust gas turbocharger in such a way that exhaust gas leaving the exhaust gas turbocharger is diverted into the short-circuit line and then to the power turbine.

Abstract: Provided is a cat-and-mouse type internal combustion engine of concentric two-rotor/six-piston type, which has a cooling chamber in its cylinder housing and which needs neither any lubricating oil nor any valve mechanism so that its structure is simple and compact and can be easily manufactured. Further provided are a variable correlation type crank for a constant-pressure burning (CPB) engine of a variable compression ratio, and an inertial correlation type crank for a premixed compression ignition (HCCI), thereby to realize an internal combustion engine, which matches fuels of various kinds and which has a high energy efficiency and a clean exhaust gas.

Abstract: An arrangement for a supercharged combustion engine including a first compressor subjecting air to a first compression step, a second compressor subjecting the air to a second compression step, a first cooling system with a circulating coolant, a second cooling system with a circulating coolant which is at a lower temperature than the coolant in the first cooling system, a first charge air cooler applied to an air inlet line to the engine for cooling compressed air, the first cooler is located between the first compressor and the second compressor and is cooled by coolant from the second cooling system, a second charge air cooler applied to the air inlet line at a location downstream of the second compressor and is cooled by coolant from the first cooling system, and a third charge air cooler applied at a location downstream of the second charge air cooler and cooled by coolant from the second cooling system.

Abstract: An exhaust gas recirculation (EGR) system and a method for recirculating an exhaust gas stream from an outlet to an inlet of a turbomachine are provided. The EGR system includes a guide element to channel the exhaust gas stream from the inlet to the outlet and a Rankine cycle system through which a working fluid is circulated. The Rankine cycle system including serially a high temperature heat exchanger in heat exchange relationship with the guide element; an expansion device coupled to a generator; a low temperature heat exchanger in heat exchange relationship with a cooling medium; and a pump. The exhaust stream at the outlet has a first temperature and the exhaust stream downstream of the high temperature heat exchanger has a second temperature that is lower than the first temperature.

Abstract: An exhaust gas recirculation system for an engine having an exhaust system includes an EGR cooler in fluid communication with an exhaust manifold. The EGR cooler receives a portion of the engine's exhaust gas. A cooled EGR passage is downstream of the EGR cooler, and an air intake line is in fluid communication with an intake manifold. A collecting vessel is located at or downstream of the EGR cooler for receiving condensate, and a condensate evacuation line is in fluid communication with the collecting vessel for receiving condensate from the collecting vessel.