[go: up one dir, main page]

NO20091581L - Trykkoverforingsanordning med rotasjon - Google Patents

Trykkoverforingsanordning med rotasjon

Info

Publication number
NO20091581L
NO20091581L NO20091581A NO20091581A NO20091581L NO 20091581 L NO20091581 L NO 20091581L NO 20091581 A NO20091581 A NO 20091581A NO 20091581 A NO20091581 A NO 20091581A NO 20091581 L NO20091581 L NO 20091581L
Authority
NO
Norway
Prior art keywords
rotor
pressure
liquid
transfer device
fluid stream
Prior art date
Application number
NO20091581A
Other languages
English (en)
Other versions
NO343320B1 (no
Inventor
Richard L Stover
Jeremy G Martin
Original Assignee
Energy Recovery Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39268795&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO20091581(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Energy Recovery Inc filed Critical Energy Recovery Inc
Publication of NO20091581L publication Critical patent/NO20091581L/no
Publication of NO343320B1 publication Critical patent/NO343320B1/no

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F13/00Pressure exchangers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/06Energy recovery
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/10Accessories; Auxiliary operations
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2313/00Details relating to membrane modules or apparatus
    • B01D2313/24Specific pressurizing or depressurizing means
    • B01D2313/246Energy recovery means
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08Seawater, e.g. for desalination
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/10Energy recovery

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hydraulic Motors (AREA)
  • Rotary Pumps (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Trykkoverføirngsanordning for å overføre trykkenergi fra en høytrykks fiuidstrøm til en lavtrykks fiuidstrøm, idet et generelt sylindrisk hus (61) inneholder en rotor (63) som har flere kanaler. (65) forløpende aksialt gjennom denne og som roterer om en midtre stator (67) eller inne i en omgivende hylse (73), og et par motsatte endedeksler (69, 71) er i glidende og tettende anlegg mot plane endeflater (68) på rotoren. Endedekslene (69, 71) og de tilhørende komponenter er slik konstruert at de muliggjør at kanalene i det minste to ganger kan fylles med en høytrykks, første væske under hver omdreining av rotoren og således slippe ut det dobbelte av volumet av en trykksatt, andre væske enn om de bare ble fylt én gang med høytrykks væske.
NO20091581A 2006-10-04 2009-04-21 Trykkoverføringsanordning med rotasjon NO343320B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82817506P 2006-10-04 2006-10-04
PCT/US2007/079674 WO2008042693A1 (en) 2006-10-04 2007-09-27 Rotary pressure transfer device

Publications (2)

Publication Number Publication Date
NO20091581L true NO20091581L (no) 2009-05-04
NO343320B1 NO343320B1 (no) 2019-01-28

Family

ID=39268795

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20091581A NO343320B1 (no) 2006-10-04 2009-04-21 Trykkoverføringsanordning med rotasjon

Country Status (15)

Country Link
US (1) US8075281B2 (no)
EP (1) EP2076678B1 (no)
JP (1) JP2010506089A (no)
KR (1) KR101506718B1 (no)
CN (1) CN101568733B (no)
AU (1) AU2007304976A1 (no)
BR (1) BRPI0715302A2 (no)
CA (1) CA2665390A1 (no)
DK (1) DK2076678T3 (no)
ES (1) ES2687990T3 (no)
IL (1) IL197798A (no)
MX (1) MX2009003580A (no)
NO (1) NO343320B1 (no)
SG (1) SG193872A1 (no)
WO (1) WO2008042693A1 (no)

Families Citing this family (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8616323B1 (en) 2009-03-11 2013-12-31 Echogen Power Systems Hybrid power systems
WO2010121255A1 (en) 2009-04-17 2010-10-21 Echogen Power Systems System and method for managing thermal issues in gas turbine engines
BRPI1011938B1 (pt) 2009-06-22 2020-12-01 Echogen Power Systems, Inc sistema e método para gerenciar problemas térmicos em um ou mais processos industriais.
WO2011017476A1 (en) 2009-08-04 2011-02-10 Echogen Power Systems Inc. Heat pump with integral solar collector
US8869531B2 (en) 2009-09-17 2014-10-28 Echogen Power Systems, Llc Heat engines with cascade cycles
US8794002B2 (en) 2009-09-17 2014-08-05 Echogen Power Systems Thermal energy conversion method
US8613195B2 (en) 2009-09-17 2013-12-24 Echogen Power Systems, Llc Heat engine and heat to electricity systems and methods with working fluid mass management control
US8813497B2 (en) 2009-09-17 2014-08-26 Echogen Power Systems, Llc Automated mass management control
SG181924A1 (en) * 2009-12-23 2012-07-30 Energy Recovery Inc Rotary energy recovery device
DE102010011147B4 (de) * 2010-03-11 2013-04-25 Benteler Automobiltechnik Gmbh Druckwellenlader
US8857186B2 (en) 2010-11-29 2014-10-14 Echogen Power Systems, L.L.C. Heat engine cycles for high ambient conditions
US8616001B2 (en) 2010-11-29 2013-12-31 Echogen Power Systems, Llc Driven starter pump and start sequence
US8783034B2 (en) 2011-11-07 2014-07-22 Echogen Power Systems, Llc Hot day cycle
JP5571005B2 (ja) * 2011-01-12 2014-08-13 株式会社クボタ 圧力交換装置及び圧力交換装置の性能調整方法
WO2013047487A1 (ja) 2011-09-30 2013-04-04 株式会社クボタ 圧力交換装置
US9062898B2 (en) 2011-10-03 2015-06-23 Echogen Power Systems, Llc Carbon dioxide refrigeration cycle
US9695795B2 (en) * 2012-04-19 2017-07-04 Energy Recovery, Inc. Pressure exchange noise reduction
CN102777432B (zh) * 2012-07-21 2018-02-13 沃尔科技有限公司 具有增压功能的旋转压力传递装置
US9435354B2 (en) * 2012-08-16 2016-09-06 Flowserve Management Company Fluid exchanger devices, pressure exchangers, and related methods
CN102797714A (zh) * 2012-08-17 2012-11-28 孔金生 一种压力转换器
US9091278B2 (en) 2012-08-20 2015-07-28 Echogen Power Systems, Llc Supercritical working fluid circuit with a turbo pump and a start pump in series configuration
US9341084B2 (en) 2012-10-12 2016-05-17 Echogen Power Systems, Llc Supercritical carbon dioxide power cycle for waste heat recovery
US9118226B2 (en) 2012-10-12 2015-08-25 Echogen Power Systems, Llc Heat engine system with a supercritical working fluid and processes thereof
WO2014117074A1 (en) 2013-01-28 2014-07-31 Echogen Power Systems, L.L.C. Process for controlling a power turbine throttle valve during a supercritical carbon dioxide rankine cycle
US9638065B2 (en) 2013-01-28 2017-05-02 Echogen Power Systems, Llc Methods for reducing wear on components of a heat engine system at startup
AU2014225990B2 (en) 2013-03-04 2018-07-26 Echogen Power Systems, L.L.C. Heat engine systems with high net power supercritical carbon dioxide circuits
WO2014172576A1 (en) * 2013-04-17 2014-10-23 Hauge Leif J Rotor positioning system in a pressure exchange vessel
CN103765064B (zh) * 2013-07-09 2016-03-09 付兰荣 逆水阀和流体动力节能水泵
EP2837824B1 (en) * 2013-08-15 2015-12-30 Danfoss A/S Hydraulic machine, in particular hydraulic pressure exchanger
US9739128B2 (en) * 2013-12-31 2017-08-22 Energy Recovery, Inc. Rotary isobaric pressure exchanger system with flush system
US9945210B2 (en) 2014-08-05 2018-04-17 Energy Recovery, Inc. Pressure exchanger system with integral pressure balancing system
US11047398B2 (en) * 2014-08-05 2021-06-29 Energy Recovery, Inc. Systems and methods for repairing fluid handling equipment
US9976573B2 (en) * 2014-08-06 2018-05-22 Energy Recovery, Inc. System and method for improved duct pressure transfer in pressure exchange system
US10570777B2 (en) 2014-11-03 2020-02-25 Echogen Power Systems, Llc Active thrust management of a turbopump within a supercritical working fluid circuit in a heat engine system
US10359075B2 (en) 2014-11-18 2019-07-23 Energy Recovery, Inc. System and method for hydrostatic bearings
US20160160888A1 (en) * 2014-12-05 2016-06-09 Energy Recovery, Inc. Rotor duct spotface features
US10161421B2 (en) 2015-02-03 2018-12-25 Eli Oklejas, Jr. Method and system for injecting a process fluid using a high pressure drive fluid
US10557482B2 (en) * 2015-11-10 2020-02-11 Energy Recovery, Inc. Pressure exchange system with hydraulic drive system
WO2017132426A2 (en) * 2016-01-27 2017-08-03 Schlumberger Technology Corporation Modular configurable wellsite surface equipment
WO2017177150A1 (en) * 2016-04-07 2017-10-12 Iconac, Inc Method and system for testing fluid filled pipes, tubes and other such vessels using sound and vibration
CN107398177B (zh) * 2016-05-19 2023-11-17 宁波淡海智能科技有限公司 外转子式压力交换器
US10527073B2 (en) * 2016-06-06 2020-01-07 Energy Recovery, Inc. Pressure exchanger as choke
US9810033B1 (en) * 2016-09-02 2017-11-07 Schlumberger Technology Corporation Subsea drilling systems and methods
US11346372B2 (en) 2016-11-04 2022-05-31 Schlumberger Technology Corporation Split stream operations with pressure exchangers
US11460051B2 (en) 2016-11-04 2022-10-04 Schlumberger Technology Corporation Pressure exchanger wear prevention
US10995774B2 (en) 2016-11-04 2021-05-04 Schlumberger Technology Corporation Pressure exchanger with pressure ratio
US10961823B2 (en) 2016-11-04 2021-03-30 Schlumberger Technology Corporation Pressure exchanger pressure oscillation source
US11157025B2 (en) 2016-11-04 2021-10-26 Schlumberger Technology Corporation Pressure exchanger manifold resonance reduction
US10975677B2 (en) 2016-11-04 2021-04-13 Schlumberger Technology Corporation Pressure exchanger low pressure flow control
CN106594009B (zh) * 2016-12-31 2018-04-06 杭州水处理技术研究开发中心有限公司 外驱动转子式能量回收装置
US10837465B2 (en) 2017-02-10 2020-11-17 Vector Technologies Llc Elongated tank for use in injecting slurry
US10156132B2 (en) 2017-02-10 2018-12-18 Vector Technologies Llc Method and system for injecting slurry using two tanks with valve timing overlap
US10766009B2 (en) 2017-02-10 2020-09-08 Vector Technologies Llc Slurry injection system and method for operating the same
US10156237B2 (en) 2017-02-10 2018-12-18 Vector Technologies Llc Method and system for injecting slurry using concentrated slurry pressurization
US10156856B2 (en) 2017-02-10 2018-12-18 Vector Technologies Llc Method and system for injecting slurry using two cooperating slurry pressurizing tanks
US10550857B2 (en) * 2017-06-05 2020-02-04 Energy Recovery, Inc. Hydraulic energy transfer system with filtering system
US10883388B2 (en) 2018-06-27 2021-01-05 Echogen Power Systems Llc Systems and methods for generating electricity via a pumped thermal energy storage system
US12092136B2 (en) 2018-11-09 2024-09-17 Flowserve Pte. Ltd. Fluid exchange devices and related controls, systems, and methods
CA3119322A1 (en) 2018-11-09 2020-05-14 Flowserve Management Company Pistons for use in fluid exchange devices and related devices, systems, and methods
US10865810B2 (en) 2018-11-09 2020-12-15 Flowserve Management Company Fluid exchange devices and related systems, and methods
US11193608B2 (en) 2018-11-09 2021-12-07 Flowserve Management Company Valves including one or more flushing features and related assemblies, systems, and methods
MX2021005199A (es) 2018-11-09 2021-07-15 Flowserve Man Co Dispositivos de intercambio de fluidos y controles, sistemas y metodos relacionados.
AU2019376162B2 (en) 2018-11-09 2025-07-10 Flowserve Pte. Ltd. Fluid exchange devices and related controls, systems, and methods
CN112996983A (zh) 2018-11-09 2021-06-18 芙罗服务管理公司 流体交换设备以及相关控制装置、系统和方法
CN109550399B (zh) * 2018-12-10 2023-09-19 中国矿业大学 一种大处理量转子式能量回收装置
CN209605915U (zh) * 2018-12-28 2019-11-08 厦门帮众科技有限公司 一种精确计量装置
US10933375B1 (en) 2019-08-30 2021-03-02 Fluid Equipment Development Company, Llc Fluid to fluid pressurizer and method of operating the same
AU2020401951A1 (en) 2019-12-12 2022-05-19 Flowserve Pte. Ltd. Fluid exchange devices and related controls, systems, and methods
US12085094B2 (en) 2020-02-12 2024-09-10 Isobaric Strategies Inc. Pressure exchanger with flow divider in rotor duct
US12247588B2 (en) * 2020-02-12 2025-03-11 Isobaric Strategies Inc. Pressure exchanger for gas processing
US11435120B2 (en) 2020-05-05 2022-09-06 Echogen Power Systems (Delaware), Inc. Split expansion heat pump cycle
US11421918B2 (en) 2020-07-10 2022-08-23 Energy Recovery, Inc. Refrigeration system with high speed rotary pressure exchanger
US11397030B2 (en) * 2020-07-10 2022-07-26 Energy Recovery, Inc. Low energy consumption refrigeration system with a rotary pressure exchanger replacing the bulk flow compressor and the high pressure expansion valve
US12018701B2 (en) * 2020-09-24 2024-06-25 Flowserve Pte. Ltd. Hydraulic bearings and related devices, assemblies, and methods
WO2022125816A1 (en) 2020-12-09 2022-06-16 Supercritical Storage Company, Inc. Three reservoir electric thermal energy storage system
ES2848924B2 (es) 2021-06-04 2022-03-29 Latorre Carrion Manuel Dispositivo de intercambio de presion de sentido unico para plantas desaladoras por osmosis inversa
US12209778B2 (en) 2021-06-09 2025-01-28 Energy Recovery, Inc. Refrigeration and heat pump systems with pressure exchangers
US12007154B2 (en) 2021-06-09 2024-06-11 Energy Recovery, Inc. Heat pump systems with pressure exchangers
US12504028B2 (en) 2022-03-24 2025-12-23 Energy Recovery, Inc. Cartridge sealing and alignment in a pressure exchanger
US12410821B2 (en) 2022-03-24 2025-09-09 Energy Recovery, Inc. Reducing cavitation, noise, and vibration in a pressure exchanger
US12404877B2 (en) * 2022-03-24 2025-09-02 Energy Recovery, Inc. Pressure exchangers with fouling and particle handling capabilities
US12516855B2 (en) 2022-10-27 2026-01-06 Supercritical Storage Company, Inc. High-temperature, dual rail heat pump cycle for high performance at high-temperature lift and range
AU2024289421A1 (en) 2023-02-07 2025-09-11 Supercritical Storage Company, Inc. Waste heat integration into pumped thermal energy storage
CN119607879B (zh) * 2025-02-12 2025-04-22 青岛澳波泰克安全设备有限责任公司 压力交换器及水处理系统

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095704A (en) * 1960-12-09 1963-07-02 Spalding Dudley Brian Pressure exchanger apparatus
US3431747A (en) * 1966-12-01 1969-03-11 Hadi T Hashemi Engine for exchanging energy between high and low pressure systems
CH522821A (de) * 1970-10-29 1972-05-15 Bbc Brown Boveri & Cie Verfahren zur Verbesserung der Abdichtung einer aerodynamischen Druckwellenmaschine und Einrichtung zur Durchführung des Verfahrens
US4274811A (en) * 1979-04-23 1981-06-23 Ford Motor Company Wave compressor turbocharger
US4360316A (en) * 1980-07-07 1982-11-23 Ford Motor Company Two cycle per revolution wave compression supercharger
DE3762535D1 (de) * 1986-02-28 1990-06-07 Bbc Brown Boveri & Cie Durch die gaskraefte angetriebener, freilaufender druckwellenlader.
WO1988005133A1 (en) * 1987-01-05 1988-07-14 Hauge Leif J Pressure exchanger for liquids
DE3830058C2 (de) * 1987-10-02 1996-12-12 Comprex Ag Baden Druckwellenlader
NO168548C (no) * 1989-11-03 1992-03-04 Leif J Hauge Trykkveksler.
NO306272B1 (no) * 1997-10-01 1999-10-11 Leif J Hauge Trykkveksler
NO312563B1 (no) * 2000-04-11 2002-05-27 Energy Recovery Inc Fremgangsmate for reduksjon av stoy og kavitasjon i en trykkveksler som oker eller reduserer trykket pa fluider ved fortrengningsprinsippet, og en sadan trykkveksler
US6449939B1 (en) * 2000-05-26 2002-09-17 Rolls-Royce Corporation Pulsed detonation engine wave rotor
US6537035B2 (en) * 2001-04-10 2003-03-25 Scott Shumway Pressure exchange apparatus
US6773226B2 (en) * 2002-09-17 2004-08-10 Osamah Mohamed Al-Hawaj Rotary work exchanger and method
WO2006020679A2 (en) 2004-08-10 2006-02-23 Leif Hauge Pressure exchanger
US7201557B2 (en) 2005-05-02 2007-04-10 Energy Recovery, Inc. Rotary pressure exchanger

Also Published As

Publication number Publication date
AU2007304976A1 (en) 2008-04-10
NO343320B1 (no) 2019-01-28
BRPI0715302A2 (pt) 2013-06-11
CA2665390A1 (en) 2008-04-10
US8075281B2 (en) 2011-12-13
IL197798A0 (en) 2010-02-17
KR20090080061A (ko) 2009-07-23
SG193872A1 (en) 2013-10-30
EP2076678A4 (en) 2017-03-15
US20090180903A1 (en) 2009-07-16
ES2687990T3 (es) 2018-10-30
JP2010506089A (ja) 2010-02-25
WO2008042693A1 (en) 2008-04-10
DK2076678T3 (en) 2018-09-17
IL197798A (en) 2013-02-28
EP2076678B1 (en) 2018-07-18
EP2076678A1 (en) 2009-07-08
CN101568733A (zh) 2009-10-28
KR101506718B1 (ko) 2015-03-27
MX2009003580A (es) 2009-07-22
CN101568733B (zh) 2013-08-07

Similar Documents

Publication Publication Date Title
NO20091581L (no) Trykkoverforingsanordning med rotasjon
CN104411920B (zh) 压力交换降噪
US9885372B2 (en) System and method for a rotor advancing tool
MX391260B (es) Sistemas y métodos para un colector común con sistemas integrados de transferencia de energía hidráulica.
WO2010016825A9 (en) Cascaded condenser for multi-unit geothermal orc
ATE529671T1 (de) Drehschieber und diesen verwendendes analytisches chromatographisches system
CL2020001112A1 (es) Conjunto de cartucho, con una carcasa que posee una cámara de células de flujo para recibir una célula de flujo, una placa de pocillos, incluyendo la placa de pocillos una estación de válvula, un conjunto de bomba, un conjunto de válvula rotativa, el conjunto de válvula rotativa incluye un árbol de rotor y una válvula de rotor. (divisional solicitud 201803753)
WO2015103405A3 (en) Rotary isobaric pressure exchanger system with lubrication system
CL2009000037A1 (es) Metodo y aparato para mezclar un fluido con un liquido, comprendiendo una camara y turbina motriz, y una camara y rotor mezclador, en comunicacion operacional, para descargar el fluido motriz desde la camara de turbina hacia la camara de mezcla.
EP2351925A3 (en) Back-up featherer
ES2526670T3 (es) Caldera de calentar liquido
BR112016002882A2 (pt) “dispositivo retardador hidrodinâmico, método para sua utilização juntamente com um veículo”
GB0523265D0 (en) Pressure exchanger
RU2010101708A (ru) Способ и система для регулирования протечки газа в турбине и турбина
CL2017001269A1 (es) Un método para la modernización de una planta de amoníaco
WO2018148351A3 (en) Apparatus and mechanism to bypass pcie address translation
WO2014028107A3 (en) Rapid startup heat recovery steam generator
CL2019000945A1 (es) Dispositivo de válvula rotatoria y sus métodos.
ES2634207T3 (es) Bomba de émbolo giratorio y semicasco de carcasa para esta bomba
BR112014032911A2 (pt) dispositivo indicador químico
DOP2012000320A (es) Valvula concava de distribucion lineal
WO2015038760A3 (en) Low-loss cryogenic fluid supply system and method
WO2012076090A3 (de) Pumpturbinenanlage
WO2013014438A3 (en) Valve
WO2012155068A3 (en) A positive displacement multi-cyclinder pump

Legal Events

Date Code Title Description
CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: ENERGY RECOVERY INC, US