A bottoming cycle power system includes a turbo-expander operable to rotate a turbo-crankshaft as a flow of exhaust gas from a combustion process passes through the turbo-expander. A turbo-compressor is operable to compress the flow of exhaust gas after the exhaust gas passes through the turbo-expander. An open cycle absorption chiller system includes an absorber section operable to receive the flow of exhaust gas from the turbo-expander and to mix the flow of exhaust gas with a first refrigerant solution within the absorber section. The first refrigerant solution is operable to absorb water from the exhaust gas as the exhaust gas passes through the first refrigerant solution. The absorber section is operable to route the flow of exhaust gas to the turbo-compressor after the flow of exhaust gas has passed through the first refrigerant solution.

A low-temperature turbocompressor structural arrangement for an internal combustion engine for using energy that is available but unused during operation to cool the air supplied to the engine by supercharging. The temperature of the air compressed by the compressor is reduced by a cooling system and the air is then conveyed to a further turbine actuated by the intake air flow of the engine. The structural arrangement may be mounted in full or in part, and also each component may be fitted into existing systems.

The low-temperature turbocompressor structural arrangement for an internal combustion engine is a system for using the energy that is available but unused during operation of an internal combustion engine, for cooling the air supplied to said engine by supercharging, applicable to internal combustion engines of any type. The temperature of the air compressed by the compressor is reduced by a cooling system and the air is then conveyed to a further turbine actuated by the intake air flow of the engine, affording the benefits of enhancing engine performance levels, which may be used in order to obtain greater power or reduce consumption, since the denser air allows more fuel into the combustion chamber, achieving greater combustion, which increases the power-to-weight ratio, and the cooler air allows work at more aggressive compression and/or ignition advance ratios without problems of pre-ignition/pinking, thereby enhancing engine performance levels. The structural arrangement may be mounted in the integral form thereof or in partial forms, and also each component may be fitted into existing systems.

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.

A number of variations may include a system which may include an electrified turbocharger along with a waste heat recovery system which may have at least a first boiler operably coupled to a vehicle engine system in order to recover waste heat therefrom. The waste heat recovery system may additionally include at least one waste heat recovery expander. The waste heat recovery system may be operably coupled to a turbocharged system which may have at least one electrified turbocharger. The electrified turbocharger and the waste heat recovery expander may be electrically coupled to a single electric machine.

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.

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.

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.

The present invention relates to a kinetic turbopump assembly for a closed loop, in particular of Rankine cycle type, associated with an internal-combustion engine (12) with a drive shaft (26), notably for a motor vehicle, wherein one (10) of the faces of said engine carries accessories (14, 18, 22) of this engine, and at least one winding roller (30, 30, 30) for a rotary motion transmission belt (32) connecting at least said accessories to drive shaft (26).

According to the invention, the assembly comprises a rotary motion transmission path (T) between shaft (38) of the turbopump and said winding roller.