Abrégé

A multi-stage centrifugal compressor, including: a rotary electric motor inside a motor housing and coupled to a motor shaft; two radial compression stages comprising back-to-back bladed compression impellers; an outlet manifold in communication with second exhaust flow paths; at least one inter-stage flow passage comprising: a main channel passing through the motor housing and opening onto a first lateral face of the motor housing; an intermediate channel in sealed communication with the main channel and passing through a spacer inserted between a second lateral face of the motor housing and a second cowl; and a secondary channel formed in the second cowl and opening opposite a second bladed compression impeller.

Classes IPC  ?

• F04D 17/12 - Pompes multiétagées
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 29/28 - Rotors spécialement adaptés aux fluides compressibles pour pompes centrifuges ou hélicocentrifuges
• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur

Abrégé

Disclosed is a multi-stage centrifugal compressor (1), comprising: - a rotary electric motor (2) inside a motor housing (3) and coupled to a drive shaft (4); - two radial compression stages (5, 6) comprising back-to-back bladed compressor impellers (50, 60); - an outlet manifold (7) in communication with second discharge ducts; - at least one inter-stage flow path (10) comprising: - a main channel (11) passing through the motor housing and emerging on a first lateral face of the motor housing; - an intermediate channel (12) in sealed communication with the main channel and passing through a spacer (64) interposed between a second lateral face of the motor housing and a second cover; and - a secondary channel (13) provided in the second cover and emerging opposite a second bladed compressor impeller.

Classes IPC  ?

• F04D 17/12 - Pompes multiétagées
• F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
• F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
• F04D 29/44 - Moyens de guidage du fluide, p. ex. diffuseurs
• F04D 29/58 - RefroidissementChauffageRéduction du transfert de chaleur

Produits et services

Blades, namely, gas turbine parts; turbine blades other than parts of land vehicle engines; turbine blades for energy production; steam boilers for energy production, other than for land vehicles; portable electric power generators; solar energy generators; electric energy generator units; internal combustion engines for electricity production; internal combustion engines for power generation other than for land vehicles; electricity generating motors and engines; electricity production stations; ram air turbines other than for land vehicles; gas turbines; gas turbines not for land vehicles; steam turbines other than for land vehicles; turbines other than for land vehicles; turbines for energy production. Turbine shafts [parts of land vehicles]; turbine blades being parts of land vehicle engines; ram air turbines for land vehicles; air turbines for land vehicles; gas turbines for land vehicles; steam turbines for land vehicles; turbines for land vehicles. Maintenance of apparatus and installations for electric energy production; maintenance, servicing and repair of apparatus and installations for production of electrical energy; installation of electric energy production apparatus; installation of solar energy systems; maintenance and repair of energy generating installations; provision of information with respect to the repair or maintenance of power generators; repair of apparatus and installations for electric energy production; repair of energy production plants and machines; repair or maintenance of electric energy distribution or control machines and apparatus; servicing of apparatus and installations for electric energy production. Production of electricity; production of electricity from solar energy; production of energy; production of electrical energy from renewable sources; production of energy by power plants; consulting services with respect to production of electric energy. Design and development of systems for regenerative energy production; advice related to energy saving; development of energy and power management systems; technical consultancy in connection with energy-saving measures; conducting technical project studies and research related to the use of natural energy; research in the field of energy; engineering services in the field of energy technology; engineering services relating to energy supply systems; consultancy with respect to technological services provided by engineers in the field of electricity and energy supply; technical consulting services in connection with energy saving measures; technological advice services (engineering work) in the field of energy production and use; technological consultancy services in the field of alternative energy production.

Produits et services

Blades as parts for gas turbine other than for land vehicles; turbine blades other than parts of land vehicle engines; turbine blades for energy production other than for land vehicles; steam engine boilers for energy production, other than for land vehicles; portable electric power generators; solar energy generators; electric energy generator units; internal combustion engines for electricity production other than for land vehicles; internal combustion engines for power generation other than for land vehicles; electricity generating motors and engines other than for land vehicles; electricity production stations other than for land vehicles; ram air turbines other than for land vehicles; gas turbines not for land vehicles; steam turbines other than for land vehicles; turbines other than for land vehicles; turbines for energy production other than for land vehicles Turbine shafts being parts of land vehicles; turbine blades being parts of land vehicle engines; ram air turbines for land vehicles; air turbines for land vehicles; gas turbines for land vehicles; steam turbines for land vehicles; turbines for land vehicles Maintenance of apparatus and installations for electric energy production; maintenance, servicing and repair of apparatus and installations for production of electrical energy; installation of electric energy production apparatus; installation of solar energy systems; maintenance and repair of energy generating installations; provision of information with respect to the repair or maintenance of power generators; repair of apparatus and installations for electric energy production; repair of energy production plants and machines; repair or maintenance of electric energy distribution or control machines and apparatus; servicing of apparatus and installations for electric energy production Production of electricity; production of electricity from solar energy; production of energy; production of electrical energy from renewable sources; production of energy by power plants; consulting services with respect to production of electric energy Design and development of systems for regenerative energy production; advice related to energy saving; development of energy and power management systems; technical consultancy in connection with energy-saving measures; conducting technical project studies and research related to the use of natural energy; research in the field of energy; engineering services in the field of energy technology; engineering services relating to energy supply systems; consultancy with respect to technological services provided by engineers in the field of electricity and energy supply; technological engineering advice in the field of energy production and use; technological consultancy services in the field of alternative energy production

Produits et services

Turbine vanes being parts of gas turbine engines; Turbine vanes, other than parts of land vehicle engines; Turbine blades for power generation; Steam engine boilers for power generation, other than for land vehicles; Portable electric power generators; Solar power generators; Electrical generator groups; Internal combustion engines for power generation; Internal combustion engines for power generation, other than for land vehicles; Engines for the generation of electricity; Electrical generator stations; Ram air turbines [other than for land vehicles]; Gas turbines; Gas turbines not for land vehicles; Steam turbines [other than for land vehicles]; Turbines, other than for land vehicles; Turbines for power generation. Turbine shafts [parts of land vehicles]; Turbine vanes being parts of land vehicle engines; Ram air turbines for land vehicles; Air turbines for land vehicles; Gas turbines for land vehicles; Steam turbines for land vehicles; Turbines for land vehicles. Maintenance of power generating apparatus and installations; Maintenance, servicing and repair of power generating apparatus and installations; Installation of power generating apparatus; Installation of solar powered systems; Maintenance and repair of energy generating installations; Providing information relating to the repair or maintenance of power generators; Repair of power generating apparatus and installations; Repair of energy production plants and machines; Repair or maintenance of power distribution or control machines and apparatus; Servicing of power generating apparatus and installations. Electricity generating; Generation of electricity from solar energy; Energy production; Production of electrical power from renewable sources; Production of energy by power plants; Consultancy services relating to the generation of electrical power. Design and development of regenerative energy generation systems; Consultancy in the field of energy-saving; Development of energy and power management systems; Providing technical advice relating to energy-saving measures; Conducting research and technical project studies relating to the use of natural energy; Research in the field of energy; Engineering services in the field of energy technology; Engineering services relating to energy supply systems; Consultancy relating to technological services in the field of power and energy supply; Technical advice in connection with energy-saving measures; Technological consultancy in the fields of energy production and use; Technological consulting services in the field of alternative energy generation.

Abrégé

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.

Classes IPC  ?

• F02G 5/02 - Utilisation de la chaleur perdue dans les gaz d'échappement
• F01K 23/14 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les machines motrices étant couplées mécaniquement comprenant au moins un moteur à combustion
• F02B 39/12 - Transmissions d'entraînement caractérisées par l'utilisation d'accouplements ou d'embrayages incorporés
• F02B 39/08 - Transmissions d'entraînement non mécaniques, p. ex. transmissions hydrauliques ayant un rapport de réduction variable

Abrégé

The invention relates to a turbopump (10) comprising a stationary housing (12) comprising a pump (16) with a pump rotor (14) comprising pump vanes (28) and a turbine (20) housing a turbine rotor (18) provided with turbine vanes (44). According to the invention, the turbopump comprises a turbine rotor (18) coaxially arranged around the rotor of the pump (16) in a plane perpendicular to said rotors.

Classes IPC  ?

• F04D 13/04 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par un fluide
• F01K 25/08 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières
• F04D 29/40 - Carters d'enveloppeTubulures pour le fluide énergétique

Abrégé

A method and device for detecting and extracting a gaseous fluid contained in a closed loop operating on a Rankine cycle are provided. The loop includes a multiplicity of constituents with, successively, a circulation and compression pump for a working fluid, a heat exchanger associated with a hot source, an expansion machine, a cooling exchanger, a working fluid tank and circulation pipes connecting these constituents. The method and device measure the temperature (Tréelle) and the pressure (Préelle) of the working fluid at a point of the loop when this loop is at rest, and, as soon as the measured pressure (Préelle) exceeds a threshold value (Pliquide saturé) for a given ambient temperature (T), activate equipment for extracting the gaseous fluid in order to discharge it from the loop.

Classes IPC  ?

• F16T 1/12 - Purgeurs d'eau de condensation ou appareils similaires pour expulser un liquide hors de réservoirs contenant principalement des gaz ou des vapeurs, p. ex. conduits de gaz, conduits de vapeur, réservoirs à clapets commandés par une élévation ou une diminution de la pression
• F01K 13/00 - Dispositions générales ou processus généraux de fonctionnement des installations complètes d'ensembles fonctionnels de machines à vapeur
• F01K 23/06 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle

Abrégé

The present invention relates to a closed circuit operating on a Rankine cycle, the circuit comprising at least one compression and circulation pump for a working fluid in liquid form, a heat exchanger over which a hot source is swept in order to evaporate the fluid, means for expanding the fluid in the form of a vapor, a cooling exchanger swept by a cold source to condense the working fluid, a reservoir of working fluid, and working fluid circulation pipes for circulating the fluid between the pump, the heat exchanger, the expansion means, the condenser and the reservoir. The circuit comprises a device for draining the fluid contained in the heat exchanger.

Classes IPC  ?

• F01K 13/02 - Commande, p. ex. arrêt ou démarrage
• F01K 13/00 - Dispositions générales ou processus généraux de fonctionnement des installations complètes d'ensembles fonctionnels de machines à vapeur
• F01D 21/00 - Arrêt des "machines" ou machines motrices, p. ex. dispositifs d'urgenceDispositifs de régulation, de commande ou de sécurité non prévus ailleurs
• F01D 25/08 - RefroidissementChauffageIsolation thermique
• F22B 37/02 - Détails ou parties constitutives des chaudières à vapeur utilisables sur plus d'un type de chaudière à vapeur
• F22B 37/50 - Dispositifs ou agencements pour enlever l'eau, les minéraux ou les boues des chaudières pour l'évacuation ou l'expulsion de l'eau

Abrégé

The present invention concerns a kinetic turbopump assembly (1) for circulating a working fluid in a closed circuit, particularly of the Rankine cycle type, associated with a rotating electrical machine (12) comprising a rotor and a stator, said rotor being mechanically rotatably connected to the shaft of the pump (3) and to the shaft of the turbine (9) of said turbopump. The electrical machine of the assembly comprises a cooling area in which the pressurised working fluid circulates.

Classes IPC  ?

• F01K 7/16 - Ensembles fonctionnels de machines à vapeur caractérisés par l'emploi de types particuliers de machines motricesEnsembles fonctionnels ou machines motrices caractérisés par un circuit de vapeur, un cycle de fonctionnement ou des phases particuliersDispositifs de commande spécialement adaptés à ces systèmes, cycles ou phasesUtilisation de la vapeur soutirée ou de la vapeur d'évacuation pour le réchauffage de l'eau d'alimentation les machines motrices étant uniquement du type turbine
• F01K 25/08 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières

Abrégé

The present invention relates to a turbopump comprising a fixed casing (12, 12'; 112) comprising a pump (16, 116) with a pump rotor (14, 114) borne by a pump shaft (18, 118) and a turbine (22, 122) housing a turbine rotor (20, 120) borne by a turbine shaft (24, 124). According to the invention, the pump shaft (18, 118) is separate from the turbine shaft (24, 124) and the turbopump comprises a speed-varying device (26, 126) for generating a difference in rotational speed between the pump shaft (118, 118) and the turbine shaft (24, 124).

Classes IPC  ?

• F04D 13/02 - Ensembles comprenant les pompes et leurs moyens d'entraînement
• F04D 13/04 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par un fluide
• F01K 23/06 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle
• F01K 23/10 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle le fluide à la sortie de l'un des cycles chauffant le fluide dans un autre cycle
• F01K 25/08 - Ensembles fonctionnels ou machines motrices caractérisés par l'emploi de fluides énergétiques particuliers non prévus ailleursEnsembles fonctionnant selon un cycle fermé, non prévus ailleurs utilisant des vapeurs particulières

Abrégé

The present invention relates to a kinetic turbopump assembly for a closed circuit, particularly of the Rankine cycle type, associated with an internal combustion engine (12) having a drive shaft (26), in particular for a motor vehicle, in which one (10) of the surfaces of the engine supports engine accessories (14, 18, 22) and at least one winding roller (30, 30', 30") for a rotary motion transmission belt (32) connecting at least the accessories to the drive shaft (26). According to the invention, the assembly comprises a rotary motion transmission path (T) between the shaft (38) of the turbopump and the winding roller.

Classes IPC  ?

• F02G 3/02 - Ensembles fonctionnels de moteurs à produits de combustion à déplacement positif à moteurs à piston alternatif
• F02G 5/02 - Utilisation de la chaleur perdue dans les gaz d'échappement
• F01K 23/10 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle le fluide à la sortie de l'un des cycles chauffant le fluide dans un autre cycle
• F01K 23/06 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle
• F01K 23/14 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les machines motrices étant couplées mécaniquement comprenant au moins un moteur à combustion

Abrégé

The invention relates to a turbopump (10) comprising a stationary housing (12) comprising a pump (16) with a pump rotor (14) comprising pump vanes (28) and a turbine (20) housing a turbine rotor (18) provided with turbine vanes (44). According to the invention, the turbopump comprises a turbine rotor (18) coaxially arranged around the rotor of the pump (16) in a plane perpendicular to said rotors.

Classes IPC  ?

• F04D 13/04 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par un fluide

Abrégé

The present invention concerns a closed circuit (10) functioning according to a Rankine cycle, said circuit comprising at least one pump (12) for circulating and compressing a working fluid in liquid form, a heat exchanger (18) swept by a hot source (23) for evaporating said fluid, means (26) for expanding the fluid in vapour form, a cooling exchanger (34) swept by a cold source for condensing the working fluid, a tank (40) of working fluid, and circulation pipes for the working fluid (44, 46, 48, 50, 52, 54) for circulating said fluid between the pump, the heat exchanger, the expansion means, the condenser and the tank. According to the invention, the circuit comprises a device (56) for draining the fluid contained in the heat exchanger (18).

Classes IPC  ?

• F01K 13/00 - Dispositions générales ou processus généraux de fonctionnement des installations complètes d'ensembles fonctionnels de machines à vapeur
• F22B 37/02 - Détails ou parties constitutives des chaudières à vapeur utilisables sur plus d'un type de chaudière à vapeur
• F22B 37/50 - Dispositifs ou agencements pour enlever l'eau, les minéraux ou les boues des chaudières pour l'évacuation ou l'expulsion de l'eau

Abrégé

The present invention concerns a method for detecting and extracting gaseous fluid contained in a closed circuit (10) functioning according to a Rankine cycle, said circuit comprising a plurality of constituents with, successively, a pump (12) for circulating and compressing a working fluid, a heat exchanger (18) associated with a hot source (24), an expansion machine (30), a cooling exchanger (40), a tank (46) of working fluid and circulation pipes (50, 52, 54, 56, 58, 60) linking these constituents. The invention involves: - measuring the temperature (Tréelle) and the pressure (Préelle) of the working fluid at a point in the circuit when said circuit is at rest, and - when the measured pressure (Préelle) exceeds a threshold value (Pliquide saturé) for a given ambient temperature (T), activating a device (62) for extracting the gaseous fluid in order to discharge it from the circuit.

Classes IPC  ?

• F01K 23/06 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle
• F01K 13/00 - Dispositions générales ou processus généraux de fonctionnement des installations complètes d'ensembles fonctionnels de machines à vapeur
• F16T 1/12 - Purgeurs d'eau de condensation ou appareils similaires pour expulser un liquide hors de réservoirs contenant principalement des gaz ou des vapeurs, p. ex. conduits de gaz, conduits de vapeur, réservoirs à clapets commandés par une élévation ou une diminution de la pression

Abrégé

The present invention relates to a thermal insulation device for a turbine generator including a turbine (30) of which the wheel (66) is rotated by a hot fluid flowing between a fluid inlet (32, 32') and a fluid outlet (34, 34'), and an electricity generator (38) coupled to said wheel by a linking shaft (36). According to the invention, a polymer heat shield is inserted at the junction between the turbine (30) and the generator (38).

Classes IPC  ?

• H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines

Abrégé

The present invention relates to a device for lubricating at least one bearing accepting a rotary shaft of an element of a closed circuit (10) operating on a Rankine cycle, the said circuit comprising a pump (12) for compressing/circulating fluid in liquid form, a heat exchanger (18) swept by a hot source (24) to evaporate the said fluid, means (30) of expanding the fluid into vapour form, a cooling exchanger (42) swept by a cold source (F) to condense the working fluid, a working fluid reservoir (48), pipes (50, 52, 54, 56, 58, 60) for circulating the working fluid, and a lubricating circuit (62) for lubricating the said bearing. According to the invention, the lubricating circuit comprises a lubricating pipe (64) connected to the closed circuit (10) and comprising means (66) of subcooling fluid circulating through the lubricating pipe.

Classes IPC  ?

• F02G 5/02 - Utilisation de la chaleur perdue dans les gaz d'échappement
• F01M 5/00 - Chauffage, refroidissement ou commande de la température du lubrifiantMoyens de lubrification facilitant le démarrage du moteur
• F01K 17/00 - Utilisation de la vapeur ou des condensats provenant soit du soutirage, soit de la sortie des ensembles fonctionnels de machines motrices à vapeur
• F16C 33/66 - Pièces ou détails particuliers pour la lubrification
• F01D 25/18 - Systèmes de lubrification
• F01M 5/02 - Conditionnement du lubrifiant pour aider au démarrage de la "machine" ou du moteur, p. ex. réchauffage