US-12623510-B2 - Tri-generation turbomachine device and vehicle comprising such a device

US12623510B2US 12623510 B2US12623510 B2US 12623510B2US-12623510-B2

Abstract

The invention relates to a turbomachine device of the intercooled recuperated reheated gas turbine (IRReGT) type. The invention relates to applications for motor vehicles. The turbomachine device comprises a first turbocompressor (C 1 , T 2 ), a second turbocompressor (C 2 , T 1 ), two combustion chambers (CC 1 , CC 2 ) or an exhaust line (EL), an intercooler (IC) and a heat exchanger (E 1 ). The device is configured to implement a stream of fluid (F 1 ) from the first compressor (C 1 ) to the intercooler (IC), to the second compressor (C 2 ), to the heat exchanger (E 1 ), to the turbines (T 1 , T 2 ). According to one aspect, the device comprises at least one vehicle interior air conditioning section comprising at least a means for producing cold (E 1 F, E 2 F) and/or heat (E 1 C) on the basis of said stream (F 1 ).

Inventors

WISSAM BOU NADER

Assignees

PSA AUTOMOBILES SA

Dates

Publication Date: 20260512
Application Date: 20220201
Priority Date: 20210309

Claims (8)

1 . A turbomachine device for a motor vehicle, the device comprising: a first turbocompressor comprising a first compressor and a first turbine; a second turbocompressor comprising a second compressor and a second turbine; a stream intercooler connected to the first compressor and to the second compressor; a first heat exchanger connected to an exhaust outlet, and to the second compressor, itself being connected to the two turbines; the device being configured to send a fluid stream from the first compressor, to the intercooler, to the second compressor, to the first heat exchanger, and to the turbines, wherein the device comprises at least one vehicle interior air conditioning section; wherein the interior air conditioning section comprises an interior air conditioning circuit passing through the intercooler and associated with a circulation pump for a second fluid stream, the air conditioning circuit including an interior air heating exchanger; and wherein the interior air conditioning section comprises a stream bypass between the second compressor and the first heat exchanger, a bypass heat exchanger, coupled to the air conditioning circuit and to the stream derived from the bypass, an air conditioning turbine connected downstream of the bypass heat exchanger, and at least one first cooling exchanger for producing interior cold connected downstream of the air conditioning turbine.
2 . The turbomachine device according to claim 1 , wherein the interior air conditioning section comprises said stream bypass between the second compressor and the first heat exchanger, an air conditioning turbine and said at least one means for cooling, said at least one first cooling exchanger comprising a first interior air cooling exchanger and a second interior air cooling exchanger; said air conditioning turbine being connected downstream of the first interior air cooling exchanger; said second interior air cooling exchanger producing interior cold connected downstream of the air conditioning turbine.
3 . The turbomachine device according to claim 2 , wherein the air conditioning turbine is a turbocompressor turbine associated with an air conditioning compressor connected downstream either between the first compressor and the intercooler, or upstream of the first compressor.
4 . The turbomachine device according to claim 1 , wherein the air conditioning turbine is a turbocompressor turbine associated with an air conditioning compressor connected downstream either between the first compressor and the intercooler, or upstream of the first compressor.
5 . The turbomachine device according to claim 1 , comprising an combustion chamber between the second and first turbines.
6 . The turbomachine device according to claim 1 , wherein the turbocompressors are mounted on separate axes.
7 . The turbomachine device according to claim 6 , including an electric generator on each of said axes.
8 . A motor vehicle comprising a turbomachine device according claim 1 .

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is the US National Stage under 35 USC § 371 of International Application No. PCT/FR2022/050170, filed Feb. 1, 2022, which claims the priority of claims the priority of the French application No. 2102250 filed on Mar. 9, 2021, the content (text, drawings and claims) of both said applications being incorporated herein by reference. BACKGROUND The devices described herein relate to the field of turbomachine devices and systems of the Brayton cycle type with cooled compression, regeneration, and reheating during expansion. This type of turbomachine generally comprises turbines and compressors which may be associated with combustion chambers with heat recovery. The described devices relate in particular to applications that are useful for motor vehicles. The turbogenerator cycle with an intercooler, an energy recovery unit, and a heat exchanger of the IRReGT type (“Intercooled Regenerative Reheat Gas Turbine”) is a high potential cycle. This cycle makes it possible to achieve a very high efficiency but also a very high power density (high specific net work). This type of turbomachine uses moving parts and produces heat. The turbomachine aims to use these movements and produced heat to implement motor vehicle interior heat and/or cold production, as well as electrical energy generation. SUMMARY To achieve this objective, described herein is a turbomachine device for a motor vehicle, the device comprising: a first turbocompressor comprising a first compressor and a first turbine;a second turbocompressor comprising a second compressor and a second turbine;a stream intercooler connected to the first compressor and to the second compressor;a heat exchanger, preferably connected to an exhaust outlet and to the second compressor, itself being connected to the two turbines; the device being configured to send a first fluid stream from the first compressor to the intercooler, to the second compressor, to the heat exchanger, and to the turbines,characterized in that it comprises at least one vehicle interior air conditioning section comprising at least one cold and/or heat production means on the basis of said stream. Advantageously, the arrangement of the device makes it possible to take advantage of the heat of the turbomachine and of the exhaust line in order to produce cold and/or heat for the vehicle interior. This results in a significant drop in fuel consumption. According to other aspects considered separately, or combined according to all technically feasible combinations: the interior air conditioning section comprises a stream bypass between the second compressor and the first heat exchanger, a first cooling exchanger, an air conditioning turbine connected downstream of the first cooling exchanger, and a second cooling exchanger for the production of interior cold connected downstream of the air conditioning turbine; and/orthe air conditioning turbine is a turbocompressor turbine associated with an air conditioning compressor connected downstream either between the first compressor and the cooler, or upstream of the first compressor; and/orthe interior air conditioning section comprises an interior air conditioning circuit passing through the intercooler and associated with a circulation pump for a second fluid stream, the air conditioning circuit including a heating exchanger; and/orthe interior air conditioning section comprises a stream bypass between the second compressor and the first heat exchanger, an additional heat exchanger coupled to the air conditioning circuit and to the stream derived from the bypass, an air conditioning turbine connected downstream of the additional heat exchanger, and a first cooling exchanger for the production of interior cold connected downstream of the air conditioning turbine; and/orthe air conditioning turbine is a turbocompressor turbine associated with an air conditioning compressor connected downstream either between the first compressor and the cooler, or upstream of the first compressor; and/orthe turbomachine device comprises a second heat exchanger between the second and first turbines, optionally associated with a heating circuit including a solar concentrator, and/orthe turbocompressors are mounted on separate axes; and/or the device includes an electrical generator on each of said axes. Another object is a motor vehicle comprising a turbomachine device. The described devices will be further detailed by the description of non-limiting embodiments, and based on the appended figures illustrating variants, wherein: BRIEF DESCRIPTION OF THE FIGURES FIG. 1 illustrates a block diagram of a turbomachine device according to a preferred first embodiment. FIG. 2 illustrates a first alternative variant of the first embodiment. FIG. 3 illustrates a second alternative variant of the first embodiment. FIG. 4 illustrates a block diagram of a turbomachine device according to a second embodiment. FIG. 5 illustrates an altern