序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
61 CHARGING PUMP SYSTEM FOR SUPPLYING A WORKING FLUID TO BEARINGS IN A SUPERCRITICAL WORKING FLUID CIRCUIT US14775318 2014-03-13 US20160040557A1 2016-02-11 Michael Louis Vermeersch
Provided herein are a heat engine system and a method for generating energy, such as transforming thermal energy into mechanical energy and/or electrical energy. The heat engine system may have a single charging pump for efficiently implementing at least two independent tasks. The charging pump may be utilized to remove working fluid (e.g., CO2) from and/or to add working fluid into a working fluid circuit during inventory control of the working fluid. The charging pump may be utilized to transfer or otherwise deliver the working fluid as a cooling agent to bearings contained within a bearing housing of a system component during a startup process. The heat engine system may also have a mass control tank utilized with the charging pump and configured to receive, store, and distribute the working fluid.
62 WASTE HEAT RECOVERY SYSTEM US13902719 2013-05-24 US20140345274A1 2014-11-27 Timothy C. ERNST; James A. ZIGAN
A waste heat recovery system includes a Rankine cycle (RC) circuit having a pump, a boiler, an energy converter, and a condenser fluidly coupled via conduits in that order, to provide additional work. The additional work is fed to an input of a gearbox assembly including a capacity for oil by mechanically coupling to the energy converter to a gear assembly. An interface is positioned between the RC circuit and the gearbox assembly to partially restrict movement of oil present in the gear assembly into the RC circuit and partially restrict movement of working fluid present in the RC circuit into the gear assembly. An oil return line is fluidly connected to at least one of the conduits fluidly coupling the RC components to one another and is operable to return to the gear assembly oil that has moved across the interface from the gear assembly to the RC circuit.
63 Plant for producing cold, heat and/or work US12935474 2009-03-30 US08794003B2 2014-08-05 Sylvain Mauran; Nathalie Mazet; Pierre Neveu; Driss Stitou
A plant for the producing of cold, heat and/or work. The plant includes at least one modified Carnot machine having a first assembly that includes an evaporator Evap combined with a heat source, a condenser Cond combined with a heat sink, a device DPD for pressurizing or expanding a working fluid GT, a means for transferring said working fluid GT between the condenser Cond and DPD, and between the evaporator Evap and DPD; a second assembly that includes two transfer vessels CT and CT′ that contain a transfer liquid LT and the working fluid GT in the form of liquid and/or vapor; a means for selectively transferring the working fluid GT between the condenser Cond and each of the transfer vessels CT and CT′, as well as between the evaporator Evap and each of the transfer enclosures CT and CT′; and a means for selectively transferring the liquid LT between the transfer vessels CT and CT′ and the compression or expansion device DPD, said means including at eat hydraulic converter.
64 DEVICE FOR CONVERTING HEAT ENERGY INTO MECHANICAL ENERGY US13997830 2011-12-30 US20130276447A1 2013-10-24 Jean-Edmond Chaix
A converter of kinetic energy from a jet formed by a heat transfer fluid and a gas at high temperature, includes: at least one injector of the jet from at least one source of heat transfer fluid and of high-temperature gas, an impulse wheel mounted rotating secured to a shaft extending along an axis substantially perpendicularly to the injector and including a plurality of asymmetric blades, a tank surrounding said impulse wheel and at least one deflector extending underneath the blades.
65 VALVE ACTIVATION IN COMPRESSED-GAS ENERGY STORAGE AND RECOVERY SYSTEMS US13715039 2012-12-14 US20130152568A1 2013-06-20 Jeffrey Modderno; Samar Shah; Randall Strauss; Joel Berg; Troy O. McBride; Benjamin R. Bollinger; David Perkins; Arne LaVen
In various embodiments, valve efficiency and reliability are enhanced via use of hydraulic or magnetic valve actuation, valves configured for increased actuation speed, and/or valves controlled to reduce collision forces during actuation.
66 SYSTEMS AND METHODS FOR EFFICIENT TWO-PHASE HEAT TRANSFER IN COMPRESSED-AIR ENERGY STORAGE SYSTEMS US13755636 2013-01-31 US20130145764A1 2013-06-13 Troy O. McBride; Benjamin R. Bollinger; Jon Bessette; Alexander Bell; Dax Kepshire; Arne La Ven; Adam Rauwerdink
In various embodiments, foam is compressed to store energy and/or expanded to recover energy.
67 SYSTEMS AND METHODS FOR FOAM-BASED HEAT EXCHANGE DURING ENERGY STORAGE AND RECOVERY USING COMPRESSED GAS US13644476 2012-10-04 US20130074488A1 2013-03-28 Troy O. McBride; Benjamin Bollinger; Jon Bessette; Dax Kepshire; Arne LaVen; Adam Rauwerdink; Alexander Bell
In various embodiments, foam is compressed to store energy and/or expanded to recover energy.
68 SYSTEMS AND METHODS FOR FOAM-BASED HEAT EXCHANGE DURING ENERGY STORAGE AND RECOVERY USING COMPRESSED GAS US13644497 2012-10-04 US20130074485A1 2013-03-28 Troy O. McBride; Benjamin Bollinger; Jon Bessette; Dax Kepshire; Arne LaVen; Adam Rauwerdink; Alexander Bell
In various embodiments, foam is compressed to store energy and/or expanded to recover energy.
69 Expander lubrication in vapour power systems US11921836 2006-06-09 US08215114B2 2012-07-10 Ian Kenneth Smith; Nikola Rudi Stosic; Ahmed Kovacevic
A vapor power generating system for generating power by using heat from a source of heat. The system has a closed circuit for a working fluid, and includes a heat exchanger assembly (1) for heating the fluid under pressure with heat from the source, a separator (8) for separating the vapor phase of the heated fluid from the liquid phase thereof, an expander (14) for expanding the vapor to generate power, a condenser (17) for condensing the outlet fluid from the expander (14), a feed pump (F) for returning condensed fluid from the condenser (17) to the heater and a return path for returning the liquid phase from the separator to the heater. The liquid phase of the working fluid contains a lubricant which lubricant is soluble or miscible in the liquid phase and a bearing supply path (21) is arranged to deliver liquid phase pressurized by the feed pump (F) to at least one bearing for a rotary element of the expander.
70 PLANT FOR PRODUCING COLD, HEAT AND/OR WORK US12935474 2009-03-30 US20110167825A1 2011-07-14 Sylvain Mauran; Nathalie Mazet; Pierre Neveu; Driss Stitou
A plant for the producing of cold, heat and/or work. The plant includes at least one modified Carnot machine having a first assembly that includes an evaporator Evap combined with a heat source, a condenser Cond combined with a heat sink, a device DPD for pressurizing or expanding a working fluid GT, a means for transferring said working fluid GT between the condenser Cond and DPD, and between the evaporator Evap and DPD; a second assembly that includes two transfer vessels CT and CT′ that contain a transfer liquid LT and the working fluid GT in the form of liquid and/or vapor; a means for selectively transferring the working fluid GT between the condenser Cond and each of the transfer vessels CT and CT′, as well as between the evaporator Evap and each of the transfer enclosures CT and CT′; and a means for selectively transferring the liquid LT between the transfer vessels CT and CT′ and the compression or expansion device DPD, said means including at eat hydraulic converter.
71 COMPRESSED AIR ENERGY STORAGE SYSTEM UTILIZING TWO-PHASE FLOW TO FACILITATE HEAT EXCHANGE US13010683 2011-01-20 US20110115223A1 2011-05-19 Karl E. STAHLKOPF; Danielle A. Fong; Stephen E. Crane; Edwin P. Berlin, JR.; AmirHossein Pourmousa Abkenar
A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.
72 Fluid machine for rankine cycle US11641202 2006-12-18 US07870733B2 2011-01-18 Keiichi Uno; Hironori Asa; Yasuhiro Takeuchi; Hiroshi Ogawa; Hiroshi Kishita; Kazuhide Uchida; Yasuhiro Kawase; Atsushi Inaba
It is an object to provide a fluid machine, which is simple in structure and in which lubricating oil containing smaller amount of the working fluid is supplied to sliding portions of an expansion device. The fluid machine has the expansion device for generating a driving force by expansion of the working fluid, which contains the lubricating oil and is heated to a gas phase condition. The fluid machine further has an electric power generating device driven by the driving force of the expansion device and generating electric power. An oil pooling portion is formed in a fluid passage, through which the working fluid discharged from the expansion device flows, such that the lubricating oil contained in the working fluid is brought into contact with at least one of sliding portions of the expansion device and the electric power generating device. And a heating unit is provided to heat the working fluid in the oil pooling portion.
73 CRYOGENIC ENGINES US12159754 2007-01-10 US20090320476A1 2009-12-31 Yulong Ding; Dongsheng Wen; Peter Thomas Dearman
Slush gas, i.e. a gas or a mixture of gases cooled so that it is partially solid and partially liquid is employed as a drive fluid in a cryogenic engine. A cryogenic engine has a working chamber (50) connected to an energy source comprising a body of slush gas (47) via injection apparatus having a housing (36) which acts as a heat exchanger for causing part of the slush gas entering the injector to boil, so as to enable the gas to be driven under pressure into the working chamber (15).
74 EFFICIENT VAPOR (STEAM) ENGINE/PUMP IN A CLOSED SYSTEM USED AT LOW TEMPERATURES AS A BETTER STIRLING HEAT ENGINE/REFRIGERATOR US12486525 2009-06-17 US20090249779A1 2009-10-08 JAMES SHIHFU SHIAO
A high efficiency vapor (steam) engine/pump process in a closed system can use either water or liquefied gases for its working fluid to extract thermal energy from the ambient or non-ambient heat sources to increase its heat transfer rate and obtain power generation efficiency over 50%. A slow-speed two-phase piston steam engine's flywheel has a high ratio gear reducer attached to increase a generator's speed and produce power with over 50% efficiency and meet its power generation requirements (3,600 RPM). This two-phase vapor (steam) engine/pump substitutes the cooling condenser's and pump's functions of compressing the waste streams directly back into the boiler, and allows the process to run at temperatures lower than room temperature, with no need for a conventional cooling condenser. The present process will not discharge thermal pollution and/or radioactive/hazardous wastes into the heat sink and to the global environment, which is highly recommended for new nuclear/general power steam engine/turbines modifications.
75 Deriving mechanical power by expanding a liquid to its vapour US783976 1997-01-15 US5833446A 1998-11-10 Ian Kenneth Smith; Nikola Rudi Stosic
An apparatus is provided for deriving mechanical power from expansion of a working fluid, other than water, from a liquid state at a first pressure to vapour at a second, lower pressure, which apparatus includes positive displacement machinery, wherein the in-built volumetric expansion ratio of the positive displacement machinery is between 10 and 50% of the overall volume ratio of expansion experienced by the fluid in the pressure reduction between the entry and the exit of the machinery.
76 Method and apparatus for processing vaporous or gaseous fluids US747716 1976-12-06 US4041708A 1977-08-16 Otto E. Wolff
A gaseous fluid is combined with a liquid to form a transient foam for processing the fluid as by compression, expansion, condensation, heat exchange or chemical reaction.
77 Two-phase engine US535372 1974-12-23 US3972195A 1976-08-03 Lance G. Hays; David G. Elliott
A two-phase power source comprises a rotor; a nozzle having an outlet directed to discharge a two-phase jet for impingement on the rotor to rotate same, the nozzle having means to subdivide flow therein; and means to supply a heated first fluid in liquid state to the nozzle for subdivided flow therein toward said outlet and to supply a second and vaporizable fluid in liquid state to the nozzle to receive heat from the first fluid therein causing the second fluid to vaporize in the nozzle and mix with the first fluid in essentially liquid state to produce said discharging jet.
78 Hydroturbine US3780531D 1971-04-23 US3780531A 1973-12-25 BLAIR W
There is disclosed herein a hydroturbine apparatus in which a rotary engine or turbine having radially disposed blades is driven by an injector of the type which entrains water in pressurized steam traveling at high velocity and projects the same against the blades.
79 Method and apparatus for converting heat energy into mechanical energy US73760134 1934-07-30 US2151949A 1939-03-28 TURNER EDWARD T
80 ORC FOR TRANSFORMING WASTE HEAT FROM A HEAT SOURCE INTO MECHANICAL ENERGY AND COMPRESSOR INSTALLATION MAKING USE OF SUCH AN ORC US15757299 2016-08-18 US20180245788A1 2018-08-30 Henrik OHMAN
An Organic Rankine Cycle (ORC) device and method for transforming waste heat from a heat source containing compressed gas into mechanical energy. The ORC includes a closed circuit containing a two-phase working fluid, the circuit including a liquid pump for circulating the working fluid in the circuit consecutively through an evaporator which is in thermal contact with the heat source; through an expander like a turbine for transforming the thermal energy of the working fluid into mechanical energy; and through a condenser which is in thermal contact with a cooling element. The ORC determines the mechanical energy generated by the expander. A control device regulates the fraction of the working fluid entering the expander based on the determined mechanical energy such that the mechanical energy generated by the expander is maximum.
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