Hieta Technologies Limited

Imperial Innovations Limited

Colin Copeland

Simon James Jones

Robert Ceen

Ricardo Martinez-Botas

Apostolos Pesiridis

Srithar Rajoo

Harminder Flora

Andrew Robert Jones

The present invention is related to a multiple-inlet turbine casing () for a turbine rotor () which comprises a first fluid supply channel () configured to direct a first working fluid onto the turbine rotor () and a second fluid supply channel () configured to direct a second working fluid to impart torque on the turbine rotor () in the same direction as the direction in which torque is imparted on the turbine rotor () by the first working fluid. The first working fluid is an exhaust gas from an internal combustion engine and the second fluid may be steam and the turbine may be an inverted-Brayton-cycle turbine for recovery of waste energy from the exhaust gas of said internal combustion engine. Thus, the number of turbine rotors is reduced in comparison to a system comprising a single turbine for each distinct working fluid.

Turbine for use with at least two working fluids

An apparatus () includes an internal combustion engine () and an inverted Brayton cycle heat engine (). Hot exhaust gas from the internal combustion engine () contains water. The hot exhaust gas drives the inverted Brayton cycle heat engine. A condenser () in a fluid path of the exhaust gas between an inverted-Brayton-cycle turbine and an inverted-Brayton-cycle compressor condenses at least some of the water from the exhaust gas to form condensed water. This condensed water follows a recirculation path () so as to be re-introduced as a working fluid into one or more of the heat engines described above, or further heat engines, e.g. the condensed water is heated by the exhaust gas using a steam-generating heat exchanger () to generate steam which drives a steam turbine ().

Inverted brayton cycle heat engine

A variable flow-restricting turbine assembly for a turbocharger includes a housing, a turbine mounted for rotation in the housing, and a variable flow-restrictor. The variable flow-restrictor includes a first series of angularly-distributed flow-restrictor portions distributed around the turbine wheel and located in an exhaust flow path to the wheel, and a second series of angularly-distributed flow-restrictor portions distributed around the first series and located in the exhaust path. At least one of the first and second series is rotatable in the housing to vary the relative angular positions of the first and second series. The restrictor portions are arranged such that the first portions align with the second portions at each of a plurality of relative angular positions to open flow channels between the portions and such that they misalign between those positions to close the flow channels.

Variable flow-restricting turbine assembly for a turbocharger, corresponding turbocharger engine and vehicle, and operating method

Growing community of inventors

Bristol, United Kingdom

Colin Copeland