Machines and machine parts not for land vehicles, namely,
expanders and parts therefore for cryogenic processes and
energy recovery from gas, liquid and flashing liquid fluids.
2.
CRYOGENIC TANDEM PUMP WITH ASYNCHRONOUS DRIVES, ZERO TANK RETURN
Cryogenic tandem pump system (100) comprising: a cryogenic reservoir (102) for storing cryogenic liquid, a first pump (104) engaged with a first actuator (106a) and configured with a sump (108a), and a second pump (114) engaged with a second actuator (106b) and also configured with a sump (108b). The reservoir (102), sumps (108a, 108b) and pumps (104, 114) are fluidly connected via piping (110a, 110b, 110c) and are connected to a pump controller, which is configured to dynamically control displacement, velocity and acceleration of the first and second pumps (104, 114). The pump controller regulates the flow and pressure of cryogenic liquid between the first and second pumps (104, 114) to produce zero return to the reservoir (102).
F04B 15/08 - Pompes adaptées pour travailler avec des fluides particuliers, p. ex. grâce à l'emploi de matériaux spécifiés pour la pompe elle-même ou certaines de ses parties avec des liquides près de leur point d'ébullition, p. ex. à une pression anormalement basse les liquides ayant une température d'ébullition peu élevée
F04B 23/02 - Installations ou systèmes de pompage comportant des réservoirs
There is disclosed a cryogenic tandem pump system comprising a cryogenic reservoir for storing cryogenic liquid, a first pump engaged with a first actuator and configured with a sump. The system further including a second pump engaged with a second actuator and is also configured with a sump. The reservoir, sumps and pumps are fluidly connected via piping and are configured with a pump controller. The pump controller is configured to dynamically control displacement, velocity and acceleration of the first and second pumps. The pump controller regulates the flow and pressure of cryogenic liquid between the first and second pumps to produce zero return to the reservoir.
F04B 37/08 - Pompes spécialement adaptées aux fluides compressibles et ayant des caractéristiques pertinentes non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes pour l'évacuation par moyens thermiques par condensation ou réfrigération, p. ex. pompes cryogéniques
F04B 49/00 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
F04B 51/00 - Tests des "machines", pompes ou installations de pompage
Machines and machine parts not for land vehicles, namely, expanders and parts therefore for cryogenic processes and energy recovery from gas, liquid and flashing liquid fluids
There is disclosed a labyrinth seal arrangement for gas turboexpanders and the like which reduces process gas losses. The labyrinth seal includes a plurality of axially spaced seal sets with teeth facing a seal member. A plurality of vent ports in between each seal set permits extraction of gradually lower pressure process gas.
F16J 15/16 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre
F01D 11/02 - Prévention ou réduction des pertes internes du fluide énergétique, p. ex. entre étages par obturation non contact, p. ex. du type labyrinthe
A piston ring set of a cryogenic pump includes a first piston ring and a second piston ring which are dissimilarly shaped and cooperatively shaped to form a hollow cylindrical shape when in abutment to one another. The first piston ring is C-shaped and defines a middle portion disposed between a first end portion and a second end portion. A piston ring gap is disposed between a first distal end of the first end portion and a second distal end of the second end portion. When the first piston ring is in abutment with the second piston ring forming the hollow cylindrical shape, the second piston ring does not extend along the middle portion of the first piston ring while the second piston ring does extend along the first end portion and second end portion of the first piston ring.
F16J 9/06 - Segments de piston, leurs logementsSegments d'étanchéité de structure similaire en général utilisant des ressorts séparés pour dilater les segmentsRessorts à cet effet
F02F 5/00 - Segments de piston, p. ex. associés avec la tête de piston
F16J 9/00 - Segments de piston, leurs logementsSegments d'étanchéité de structure similaire en général
F16J 9/12 - Segments de piston, leurs logementsSegments d'étanchéité de structure similaire en général Détails
A piston ring set of a cryogenic pump includes a first piston ring and a second piston ring which are dissimilarly shaped and cooperatively shaped to form a hollow cylindrical shape when in abutment to one another. The first piston ring is C-shaped and defines a middle portion disposed between a first end portion and a second end portion. A piston ring gap is disposed between a first distal end of the first end portion and a second distal end of the second end portion. When the first piston ring is in abutment with the second piston ring forming the hollow cylindrical shape, the second piston ring does not extend along the middle portion of the first piston ring while the second piston ring does extend along the first end portion and second end portion of the first piston ring.
There is disclosed a labyrinth seal arrangement for gas turboexpanders and the like which reduces process gas losses. The labyrinth seal includes a plurality of axially spaced seal sets with teeth facing a seal member. A plurality of vent ports in between each seal set permits extraction of gradually lower pressure process gas.
F16J 15/16 - Joints d'étanchéité entre deux surfaces mobiles l'une par rapport à l'autre
F01D 11/02 - Prévention ou réduction des pertes internes du fluide énergétique, p. ex. entre étages par obturation non contact, p. ex. du type labyrinthe
There is disclosed a labyrinth seal arrangement for gas turboexpanders and the like which reduces process gas losses. The labyrinth seal includes a plurality of axially spaced seal sets with teeth facing a seal member. A plurality of vent ports in between each seal set permits extraction of gradually lower pressure process gas.
F01D 11/02 - Prévention ou réduction des pertes internes du fluide énergétique, p. ex. entre étages par obturation non contact, p. ex. du type labyrinthe
F01D 25/16 - Aménagement des paliersSupport ou montage des paliers dans les stators
F02C 7/00 - Caractéristiques, parties constitutives, détails ou accessoires non couverts dans, ou d'un intérêt plus général que, les groupes Entrées d'air pour ensembles fonctionnels de propulsion par réaction
A system for a piston-driven fluid pump, including a plurality of electro-mechanical actuators, and a control system electrically connected to the actuators. Each actuator is configured to operatively couple with a piston of the fluid pump. The control system is configured to determine a target output of fluid to be pumped by the fluid pump, individually control a speed and a phase at which each actuator actuates the piston, such that the cylinders collectively pump fluid at an actual output that corresponds to the target output, and in response to detecting an operating condition, individually adjust the speed and/or the phase at which one or more of the actuators actuates the piston based on the operating condition to thereby cause the actual output of the fluid pump to correspond to an updated target output.
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
An electro-mechanical actuation system for a piston-driven fluid pump. The electro-mechanical actuation system includes a plurality of electro-mechanical actuators, and a control system electrically connected to the plurality of electro-mechanical actuators. Each electro-mechanical actuator is configured to operatively couple with a piston of the fluid pump. The control system is configured to determine a target output of fluid to be pumped by the fluid pump, individually control a speed and a phase at which each electro-mechanical actuator actuates the piston, such that the plurality of cylinders collectively pump fluid at an actual output that corresponds to the target output, and in response to detecting an operating condition, individually adjust the speed and/or the phase at which one or more of the electro-mechanical actuators actuates the piston based on the operating condition to thereby cause the actual output of the fluid pump to correspond to an updated target output.
F04B 9/10 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant à fluide le fluide étant liquide
F04B 53/16 - Carcasses d'enveloppeCylindresChemises de cylindre ou culassesConnexions des tubulures pour fluide
A system for pumping high-pressure cryogenic fuel comprises: a plurality of linear pumps (22) each including an upper power end (30) and a lower fluid end (32), the power end having a linear-actuated drive system terminating in a drive shaft (120) and being independently controllable by an electronic controller; the fluid end having a piston (94) coupled to the drive shaft so as to linearly reciprocate within a cylinder; the piston having a head (92) with a plurality of piston rings (98); an inlet passageway (80) leading from an inlet tank (52) to a lower end of each cylinder and into valved communication with a head space just below the head of the piston, wherein upward motion of the piston creates a negative pressure gradient in the head space sufficient to allow high-pressure fuel into the head space, and downward motion of the piston expels high-pressure fuel through a lower flow passage and into an outlet port common to all of the cylinders; and a sealed housing (24,26) disposed around the linear pumps to contain any leakages of high-pressure cryogenic fuel. The operation of the system includes coordinated actuation of the separate linear pumps (22) to result in a pulse-free output pressure profile.
F04B 15/08 - Pompes adaptées pour travailler avec des fluides particuliers, p. ex. grâce à l'emploi de matériaux spécifiés pour la pompe elle-même ou certaines de ses parties avec des liquides près de leur point d'ébullition, p. ex. à une pression anormalement basse les liquides ayant une température d'ébullition peu élevée
F04B 11/00 - Égalisation des pulsations, p. ex. au moyen de réservoirs d'airAnticavitation
F04B 23/02 - Installations ou systèmes de pompage comportant des réservoirs
F04B 9/02 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant mécaniques
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
B63H 21/38 - Appareils ou procédés spécialement adaptés à la manipulation de liquides pour l'appareil moteur d'un navire ou pour l'un de ses éléments, p. ex. lubrifiants, réfrigérants, carburants ou analogues
There is disclosed a modular, linearly actuated high-pressure pump for use in various applications with high-pressure fuel systems, in particular liquid cryogenic fuels such as Natural Gas, Hydrogen, Nitrogen and Argon (LNG/LH2/LN2/LAR). The pump utilizes linear actuation which smooths out the power profile. There are no dynamic seals which prevents failure from leakage. The primary benefit of a smooth, no pulse output and lack of dynamic seals is a longer life of the pump. Marine fuel systems that utilize cryogenic LNG are a primary application.
F02M 21/02 - Appareils pour alimenter les moteurs en combustibles non liquides, p. ex. en combustibles gazeux stockés sous forme liquide en combustibles gazeux
F04B 15/08 - Pompes adaptées pour travailler avec des fluides particuliers, p. ex. grâce à l'emploi de matériaux spécifiés pour la pompe elle-même ou certaines de ses parties avec des liquides près de leur point d'ébullition, p. ex. à une pression anormalement basse les liquides ayant une température d'ébullition peu élevée
F04B 17/04 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques utilisant des solénoïdes
F04B 9/02 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant mécaniques
F04B 11/00 - Égalisation des pulsations, p. ex. au moyen de réservoirs d'airAnticavitation
F04B 23/02 - Installations ou systèmes de pompage comportant des réservoirs
There is disclosed a high pressure dispensing nozzle for providing cryogenic fuel such as liquid natural gas (LNG) from a source to a filling receptacle, such as on a vehicle. The nozzle has a gun-style nozzle construction and a plurality of jaw members provided near a distal end for locking engagement with the filling receptacle. The nozzle further has a movable internal poppet to establish a fuel passageway through the nozzle for delivery of fuel therethrough. Two different triggers enable separate steps of locking of the nozzle onto the filling receptacle and initiating gas flow for ease of use. The two steps may also me combined and actuated by a single trigger. One nozzle disclosed includes a safety button for dispersing residual gas in the nozzle prior to disengagement to help avoid injury to the user.
F17C 5/02 - Procédés ou appareils pour remplir des récipients sous pression de gaz liquéfiés, solidifiés ou comprimés pour le remplissage avec des gaz liquéfiés
There is disclosed a high pressure dispensing nozzle for providing cryogenic fuel such as liquid natural gas (LNG) from a source to a filling receptacle, such as on a vehicle. The nozzle has a gun-style nozzle construction and a plurality of jaw members provided near a distal end for locking engagement with the filling receptacle. The nozzle further has a movable internal poppet to establish a fuel passageway through the nozzle for delivery of fuel therethrough. Two different triggers enable separate steps of locking of the nozzle onto the filling receptacle and initiating gas flow for ease of use. The two steps may also me combined and actuated by a single trigger. One nozzle disclosed includes a safety button for dispersing residual gas in the nozzle prior to disengagement to help avoid injury to the user.
A cryogenic electrical power feed-through assembly includes a contact header assembly. The contact header assembly includes a feed-through body forming a feed-through body cavity disposed therethrough extending between a first opening end to a second opening end. A first contactor plate assembly is disposed at and hermetically seals the first opening end of the feed-through body with a first electron beam weld formed between the first contactor plate and the first opening end. A second contactor plate assembly is disposed at and hermetically seals the second opening end of the feed-through body with a second electron beam weld formed between the second contactor plate and the second opening end. Each contactor plate assembly includes a contactor plate, a plurality of insulative bushings hermetically sealed to and extending through the contactor plate, and a plurality of contact pins hermetically sealed to and extending through the plurality of insulative bushings.
A cryogenic electrical power feed-through assembly includes a contact header assembly. The contact header assembly includes a feed-through body forming a feed-through body cavity disposed therethrough extending between a first opening end to a second opening end. A first contactor plate assembly is disposed at and hermetically seals the first opening end of the feed-through body with a first electron beam weld formed between the first contactor plate and the first opening end. A second contactor plate assembly is disposed at and hermetically seals the second opening end of the feed-through body with a second electron beam weld formed between the second contactor plate and the second opening end. Each contactor plate assembly includes a contactor plate, a plurality of insulative bushings hermetically sealed to and extending through the contactor plate, and a plurality of contact pins hermetically sealed to and extending through the plurality of insulative bushings.
A cryogenic submerged multi-stage pump assembly includes a vertically oriented pump shaft. A permanent magnet electrical motor includes a rotor attached to the pump shaft and a stator disposed about the rotor. A first-stage impeller assembly includes a first impeller attached to the pump shaft, the first impeller configured to move a cryogenic fluid from a first impeller inlet to a first impeller outlet when the pump shaft is rotated by the electric motor. A second-stage impeller assembly includes a second impeller attached to the pump shaft, the second impeller configured to move the cryogenic fluid from a first impeller housing to a second impeller inlet and then to a second impeller outlet when the pump shaft is rotated by the electric motor. The first and a second impeller housing are disposed about the first and second impellers and configured to channel the cryogenic fluid.
F04D 13/08 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité pour utilisation en position immergée
F04D 13/06 - Ensembles comprenant les pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
F04B 15/08 - Pompes adaptées pour travailler avec des fluides particuliers, p. ex. grâce à l'emploi de matériaux spécifiés pour la pompe elle-même ou certaines de ses parties avec des liquides près de leur point d'ébullition, p. ex. à une pression anormalement basse les liquides ayant une température d'ébullition peu élevée
