A system includes an air source, an internal combustion engine, a first turbocharger, a second turbocharger, and a third turbocharger. The first turbocharger includes a first turbine and a first compressor, the second turbocharger includes a second turbine and a second compressor, and the third turbocharger includes a third turbine and a third compressor. The third compressor is fluidly coupled to the air source and is fluidly coupled to one of the first compressor and the second compressor. The first compressor is fluidly coupled upstream of the second compressor, and the second compressor is fluidly coupled upstream of the third turbine. The third turbine is fluidly coupled upstream of the internal combustion engine.

A bottoming cycle power system includes an expander disposed on a crankshaft. The expander being operable to receive a flow of exhaust gas from a combustion process and to rotate the crankshaft as the exhaust gas passes through. An absorption chiller system has a generator section having a first heat exchanger to receive the flow of exhaust gas from the expander and to remove heat from the exhaust gas after the exhaust gas has passed through the expander. An evaporator section has a second heat exchanger to receive the flow of exhaust gas from the generator section and to remove heat from the exhaust gas after the exhaust gas has passed through the generator section. A compressor is disposed on the crankshaft and connected to the flow of exhaust gas. The compressor is operable to compress the exhaust gas after the exhaust gas has passed through the second heat exchanger.

A rotating internal combustion engine is provided. The engine includes a drive shaft and a rotatable cylinder coupled with the drive shaft. Combustion chambers are formed through the rotatable cylinder. The combustion chambers are defined by combustion blades of the rotatable cylinder. The engine is configured to generate power from combustion of the gases and from turbine movement caused from the combustion gases. Also disclosed is a fixed cylinder combustion engine.

An adjustment mechanism for an air inlet flow section of a compressor wheel of a turbocharger. The adjustment mechanism defines a variable inlet diameter for an axial air flow to the compressor wheel. The adjustment mechanism has a unison ring and a plurality of vanes. An actuator is used for providing a first pivoting motion to the unison ring about a central axis and thereby providing a second pivoting motion to the plurality of vanes. At least one elastic biaser is arranged, such that it provides, upon the pivoting motion to the unison ring, a restoring force to the unison ring and/or the plurality of vanes. The pivoting motion of the vanes adjusts the inlet diameter of the axial air flow to the compressor wheel.

An adjustment mechanism for an air inlet flow section of a compressor wheel of a turbocharger. The adjustment mechanism defines a variable inlet diameter for an axial air flow to the compressor wheel. The adjustment mechanism has a unison ring and a plurality of vanes. An actuator is used for providing a first pivoting motion to the unison ring about a central axis and thereby providing a second pivoting motion to the plurality of vanes. At least one elastic biaser is arranged, such that it provides, upon the pivoting motion to the unison ring, a restoring force to the unison ring and/or the plurality of vanes. The pivoting motion of the vanes adjusts the inlet diameter of the axial air flow to the compressor wheel.

The present invention relates to a Rankine system comprising a valve including a valve member. The valve member is provided with a valve controlling element in the form of an elongated tapered end portion with a tip end facing the duct, wherein the tapered end portion is arranged to be inserted through the opening and into the duct as the valve member is moved towards the valve seat. The actuator is configured to hold the valve member in at least one intermediate position between the first and second end positions, where the tapered end portion occupies a portion of a cross-sectional fluid through-flow area defined by the duct so as to partly restrict a flow of fluid through the duct.

Use of the hydraulically driven device in a series configuration with a minimally restrictive turbocharger is defined which will allow a very responsive and powerful boosting system to reach boost levels of 4-5 pressure ratio (PR) to support and enable OEM engine downsizing trends. An electric supercharger is also considered. A hydraulic drive assists to increase the acceleration rate of a turbocharger impeller/turbine shaft assembly and provide a secondary means of driving the compressor impeller at lower engine speeds where exhaust gases alone does not generate adequate shaft speeds to create significant induction boost. The hydraulic circuit includes a dual displacement motor, which provides high torque for acceleration yet converts to a single motor for high-speed operation. When the exhaust driven turbine function allows compressor speeds, beyond which the hydraulic system can contribute, a slip clutch allows disengagement of the hydraulic drive. In an alternative embodiment, the hydraulic drive provides means of forced induction air alone.

Use of the hydraulically driven device in a series configuration with a minimally restrictive turbocharger is defined which will allow a very responsive and powerful boosting system to reach boost levels of 4-5 pressure ratio (PR) to support and enable OEM engine downsizing trends. An electric supercharger is also considered. A hydraulic drive assists to increase the acceleration rate of a turbocharger impeller/turbine shaft assembly and provide a secondary means of driving the compressor impeller at lower engine speeds where exhaust gases alone does not generate adequate shaft speeds to create significant induction boost. The hydraulic circuit includes a dual displacement motor, which provides high torque for acceleration yet converts to a single motor for high-speed operation. When the exhaust driven turbine function allows compressor speeds, beyond which the hydraulic system can contribute, a slip clutch allows disengagement of the hydraulic drive. In an alternative embodiment, the hydraulic drive provides means of forced induction air alone.

A lubrication system and method for an engine arc provided. In some embodiments, the lubrication method comprises driving a lube pump with a gearbox in a power drive housing, the gearbox including an expander shaft of an expander of a waste heat recovery system; suctioning lubrication fluid, with the lube pump, from a lube sump in the power drive housing; lubricating, with the lubrication fluid, an expander shall bearing supporting the expander; and after lubricating the expander shall bearing, transferring the lubrication fluid to the lube sump waste heat recovery power drive and lubrication system therefor.

The present invention relates to the field of energy recovery from hot exhaust gases, a type of system that is widely used in industrial generator assemblies to produce steam used in industrial processes or cold to cool perishables or to cool environments. The system according to the present invention applies to the recovery of energy from exhaust gases in small generator assemblies, smaller than 10 MW, and comprises a turbo (1) connected to the exhaust gas outlet (2) in a small power plant generator assembly (3) and in which said turbo (1) is connected to a hydraulic pump (4), which generates pressure and transmits this pressure to a hydraulic pressure accumulator (5) which, in turn, sends hydraulic fluid under pressure for a hydraulic motor (6) of constant speed, which moves a pulley (7), and said pulley (7), in turn, moves another pulley (8), installed directly on the alternator shaft (9) of the generator assembly (3). In addition to pulleys (7,8), the movement can be done through a gear/clutch system or through a torque converter.