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.

An aircraft propulsor that includes an exhaust combustor is disclosed. The aircraft propulsor can include an internal combustion engine and a turbocharger. The turbocharger can be spooled while motoring the internal combustion engine. For example, when restarting the internal combustion engine at high altitude, an injector and an igniter can provide fuel to the exhaust and combust fuel to spool the turbocharger, decreasing load on the engine during restarting. In another example, an electric turbocharger can be driven with an electric motor to spool the turbocharger.

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 invention provides a vehicle engine system, comprising: a hydraulic pump for providing an oil supply during braking; an accumulator configured to: receive the oil supply during braking; store the oil supply under pressure; and release the oil supply under pressure during acceleration; and a turbo charger for receiving the oil supply released under pressure during acceleration.

Systems, methods, and vehicles for use with internal combustion engines comprising combustion chambers that produce exhaust gases that include a Stirling engine having a hot side and a cold side with the hot side being in thermal contact with exhaust gases produced by the internal combustion engine. The Stirling engine is configured to be powered by heat from the exhaust gases during operation of the internal combustion engine, and a compressor powered by the Stirling engine is configured to provide compressed air to combustion chambers of the internal combustion engine.

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.

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.

The electric vehicle including one or more in-wheel motors, a battery electrically coupled to one or more in-wheel motors, a power electronics including a DC-AC inverter, a AC-DC inverter, and a boost converter that receives DC power from the battery and supplies AC power to the one or more in-wheel motors, and a generator electrically coupled to the battery via the power electronics. Further, it includes a Rankine cycle system including a pump, a first valve having an input, a first output, and a second output connected to the pump, the generator, and the one or more in-wheel motors, respectively. A second valve having a first input connects to the generator, a second input connects the one or more in-wheel motors and an output delivers the working fluid to the power electronics. An expander receives the working fluid from at least one of the power electronics.

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 transport refrigeration system (20) is provided. The transport refrigeration system includes: a natural gas engine (26), a compressed natural gas storage tank (60), an artificial aspiration device (70) providing decompressed natural gas and compressed air to the natural gas engine, an electric generation device (24) powered by the natural gas engine and providing an electric output, and a refrigeration unit (22) electrically powered by the electric output of the electric generation device.