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Rankine Cycle patents

      

This page is updated frequently with new Rankine Cycle-related patent applications.




 Apparatus for utilizing heat wasted from engine patent thumbnailApparatus for utilizing heat wasted from engine
Apparatus for utilizing heat wasted from an engine includes first pressure detecting means (73) and first temperature detecting means (81) for detecting a pressure and a temperature in a refrigerant passage extending from a condenser (38) to a refrigerant pump (32), second pressure detecting means (72) and second temperature detecting means (82) for detecting a pressure and a temperature in a refrigerant passage extending from a heat exchanger (36) to an expansion device (37), and control means (71) responsive to these four detecting means when operating a rankine cycle (31). Means (71) is for diagnosing whether or not an electromagnetic clutch (35) is stuck responsive to either the first pressure detecting means (73) and the first temperature detecting means (81), or the second pressure detecting means (72) and the second temperature detecting means (82)..
Sanden Holdings Corporation


 Working medium and heat cycle system patent thumbnailWorking medium and heat cycle system
A working medium for heat cycle comprising 1-chloro-2,3,3,3-tetrafluoropropene is employed for a heat cycle system (such as a rankine cycle system, a heat pump cycle system, a refrigerating cycle system 10 or a heat transport system).. .

 Working medium and heat cycle system patent thumbnailWorking medium and heat cycle system
A working medium for heat cycle comprising 1-chloro-2,3,3,3-tetrafluoropropene is employed for a heat cycle system (such as a rankine cycle system, a heat pump cycle system, a refrigerating cycle system 10 or a heat transport system).. .

 Orc system post engine shutdown pressure management patent thumbnailOrc system post engine shutdown pressure management
The present disclosure relates to a rankine cycle system including a rankine cycle circuit in which working fluid is cycled through a condensing zone, a heating zone, and a mechanical energy extraction zone. The system also includes a hydraulic accumulator for storing pressurized working fluid from the rankine cycle circuit when a pressure of the working fluid within the rankine cycle circuit is above a first pressure level, and for releasing pressurized working fluid to the rankine cycle circuit when the working fluid within the rankine cycle circuit is below a second pressure level..
Eaton Corporation


 Engine waste-heat utilization device patent thumbnailEngine waste-heat utilization device
Apparatus for utilizing heat wasted from an engine includes: a rankine cycle (31); a transmission mechanism that couples an output shaft of an expansion device (37) to a rotary shaft of an engine via an electromagnetic clutch (32) that can be engaged and disengaged; a passage (65) through which refrigerant exiting a heat exchanger (36) flows so as to bypass the expansion device (37); and a bypass valve (66) interposed in the passage. To stop the expansion device (37), the electromagnetic clutch (32) is switched from an engaged state to a disengaged state after switching the bypass valve (66) from a closed state to an open state.
Sanden Holdings Corporation


 Systems and methods for power peaking with energy storage patent thumbnailSystems and methods for power peaking with energy storage
Disclosed illustrative embodiments include systems and methods for power peaking with energy storage. In an illustrative, non-limiting embodiment, a power plant includes a thermodynamic piping circuit having a working fluid contained therein, and the working fluid has a flow direction and a flow rate.
Supercritical Technologies, Inc.


 Waste heat recovery device, gas turbine plant provided with same, and waste heat recovery method patent thumbnailWaste heat recovery device, gas turbine plant provided with same, and waste heat recovery method
A waste heat recovery device includes: a low-boiling-point medium rankine cycle in which a low-boiling-point medium circulates while the low-boiling-point medium is repeatedly condensed and evaporated; a heated water line that guides liquid water, which is heated here, to the low-boiling-point medium rankine cycle from a waste heat recovery boiler; and a water recovery line that returns the water, which has passed through the low-boiling-point medium rankine cycle, to the waste heat recovery boiler. The low-boiling-point medium rankine cycle includes a heater that heats the low-boiling-point medium by exchanging heat between the low-boiling-point medium, which is a liquid, and liquid water, which has passed through the heated water line..
Mitsubishi Hitachi Power Systems, Ltd.


 Rankine cycle pump and recuperator design for multiple boiler systems patent thumbnailRankine cycle pump and recuperator design for multiple boiler systems
A waste heat recovery system for an engine is disclosed. In one example, the waste heat recovery system includes an expander, a first heat exchanger system, and a second heat exchanger system.
Avl Powertrain Engineering, Inc.


 Organic rankine cycle based conversion of gas processing plant waste heat into power patent thumbnailOrganic rankine cycle based conversion of gas processing plant waste heat into power
A system includes a waste heat recovery heat exchanger configured to heat a heating fluid stream by exchange with a heat source in a crude oil associated gas processing plant. The system includes an organic rankine cycle energy conversion system including a pump, an energy conversion heat exchanger configured to heat the working fluid by exchange with the heated heating fluid stream, a turbine and a generator configured to generate power by expansion of the heated working fluid, a cooling element configured to cool the expanded working fluid after power generation, and an accumulation tank.
Saudi Arabian Oil Company


 Power generation using independent dual organic rankine cycles from waste heat systems in diesel hydrotreating-hydrocracking and atmospheric distillation-naphtha hydrotreating-aromatics facilities patent thumbnailPower generation using independent dual organic rankine cycles from waste heat systems in diesel hydrotreating-hydrocracking and atmospheric distillation-naphtha hydrotreating-aromatics facilities
Optimizing power generation from waste heat in large industrial facilities such as petroleum refineries by utilizing a subset of all available hot source streams selected based, in part, on considerations for example, capital cost, ease of operation, economics of scale power generation, a number of orc machines to be operated, operating conditions of each orc machine, combinations of them, or other considerations are described. Subsets of hot sources that are optimized to provide waste heat to one or more orc machines for power generation are also described.
Saudi Arabian Oil Company


Power generation using independent triple organic rankine cycles from waste heat in integrated crude oil refining and aromatics facilities

A power generation system includes four heating fluid circuits thermally coupled to heat sources from sub-units of a petrochemical refining system. The sub-units include a hydrocracking plant, an aromatics plant, and a diesel hydro-treating plant.
Saudi Arabian Oil Company

Power generation from waste heat in integrated crude oil diesel hydrotreating and aromatics facilities

A power generation system includes two heating fluid circuits coupled to multiple heat sources from multiple sub-units of a petrochemical refining system. The sub-units include an integrated diesel hydro-treating plant and aromatics plant.
Saudi Arabian Oil Company

Organic rankine cycle based conversion of gas processing plant waste heat into power and cooling

A system includes a waste heat recovery heat exchanger configured to heat a heating fluid stream by exchange with a heat source in a crude oil associated gas processing plant; and an organic rankine cycle energy conversion system. The organic rankine cycle energy conversion system includes a heat exchanger configured to heat a first portion of a working fluid by exchange with the heated heating fluid stream; and a cooling subsystem including one or more cooling elements each configured to cool one or more of a process stream from the crude oil associated gas processing plant and a cooling water stream for ambient air cooling by exchange with a second portion of the working fluid.
Saudi Arabian Oil Company

Power generation using independent dual organic rankine cycles from waste heat systems in diesel hydrotreating-hydrocracking and continuous-catalytic-cracking-aromatics facilities

Optimizing power generation from waste heat in large industrial facilities such as petroleum refineries by utilizing a subset of all available hot source streams selected based, in part, on considerations for example, capital cost, ease of operation, economics of scale power generation, a number of organic rankine cycle (orc) machines to be operated, operating conditions of each orc machine, combinations of them, or other considerations are described. Subsets of hot sources that are optimized to provide waste heat to one or more orc machines for power generation are also described.
Saudi Arabian Oil Company

Power generation from waste heat in integrated crude oil hydrocracking and aromatics facilities

A power generation system includes two heating fluid circuits coupled to multiple heat sources from multiple sub-units of a petrochemical refining system. The sub-units include an integrated hydrocracking plant and aromatics plant.
Saudi Arabian Oil Company

Power generation from waste heat in integrated hydrocracking and diesel hydrotreating facilities

A power generation system includes a heating fluid circuit thermally coupled to multiple heat sources from at least an integrated hydrocracking plant and diesel hydro-treating plant of a petrochemical refining system. A first subset of the heat sources includes diesel hydro-treating plant heat exchangers coupled to streams in the diesel hydro-treating plant.
Saudi Arabian Oil Company

Dry cooling system for powerplants

An indirect dry cooling system suitable for steam condensing applications in a power plant rankine cycle in one embodiment includes an air cooled condenser having a plurality of interconnected modular cooling cells. Each cell comprises a blower and tube bundle assemblies each including inlet headers, outlet headers, and plurality of tubes extending between the headers.
Holtec International

Dry cooling system for powerplants

An indirect dry cooling system suitable for steam condensing applications in a power plant rankine cycle includes an air blast chiller having a plurality of interconnected modular cooler cells. Each cell comprises a blower and tube bundle including inlet headers, outlet headers, and plurality of tubes extending between the headers.
Holtec International

Evaporator and rankine cycle system

An evaporator includes an introducing portion that introduces a heat source gas from a heat source gas pipe, a heat source gas passage through which the heat source gas introduced from the introducing portion flows, a heating portion that is disposed in the heat source gas passage and at which a working fluid is heated by the heat source gas, an increasing portion at which a cross-sectional area of the heat source gas passage gradually increases from an upstream side towards a downstream side in the heat source gas passage, and a flow regulating plate that is disposed on an upstream side from the heating portion in the heat source gas passage and that has a plurality of holes which allow the heat source gas to pass through the plurality of holes.. .
Panasonic Corporation

Vortex tube supplying superheated vapor for turbine power generation

The vortex tube when properly used within a rankine cycle can produce phenomenal results. This invention functionally describes the preferred vortex tube used to produce superheated vapor from a compressed heated liquid without summoning the additional heat required for latent-heat to effect vaporization.

Waste heat recovery system

A waste heat recovery system having a rankine cycle in which a boiler, an expander, a condenser, and a circulation pump are installed on a circulation path in which working fluid is circulated according to the present disclosure includes: a plurality of boilers configured to be connected to the circulation path of the rankine cycle through connection pipes between the expander and the circulation pump; and first and second direction control valves configured to be installed at the top and at the bottom of the plurality of boilers to shift flow directions of the working fluid to the plurality of boilers.. .
Hyundai Motor Company

Working fluid collecting rankine cycle waste heat recovery system

A working fluid collecting apparatus for a rankine cycle waste heat recovery system includes a storage tank for storing a working fluid circulated in a rankine cycle therein, and a collection means for collecting the working fluid into the storage tank.. .
Hyundai Motor Company

Liquid pump and rankine cycle system

A liquid pump in the present disclosure includes a pressure container, a shaft, a first bearing, a second bearing, a pump mechanism, and a thrust bearing. The internal space of the pressure container is partitioned into a high pressure side space and a low pressure side space.
Panasonic Corporation

Method and device for discharging a stratified thermal storage tank

A method and a device for discharging a thermal stratification storage tank are provided, wherein a first thermal stratification storage tank has a first temperature in a first subsection and a second temperature in a second subsection, when the working fluid of an organic rankine cycle in the liquid aggregate state in a fluid heat transfer medium of the first thermal stratification storage tank is introduced into the first or second subsection and brought into direct material contact with the heat transfer medium, wherein at the second temperature in the second subsection the pressure in the first thermal stratification storage tank is less than or equal to the vapor pressure of the working fluid.. .
Siemens Aktiengesellschaft

Gas turbine cooling system, gas turbine plant equipped with the same and cooling high-temperature section of gas turbine

A gas turbine cooling system includes an organic rankine cycle in which a cycle medium repeatedly circulates through condensation and evaporation, an air-extraction line configured to extract compressed air from a compressor of a gas turbine, a cooling apparatus for cooling the compressed air while heating and evaporating the cycle medium condensed in the organic rankine cycle using heat of the compressed air passing through the air-extraction line, and a cooling air line configured to guide the compressed air cooled by the cooling apparatus to a high temperature section of the gas turbine.. .
Mitsubishi Hitachi Power Systems, Ltd.

Solar powered cooling system

A solar powered cooling system that obtains a plurality of cooling temperatures in a simultaneous fashion. The system includes a heliostat field, a steam-rankine cycle (src), absorption-refrigeration cycle (arc), an ejector-refrigeration cycle (erc) and a cascaded-refrigeration cycle (crc).
King Fahd University Of Petroleum And Minerals

Fluorinated olefins as working fluids and methods of using same

A working fluid that includes a fluorinated olefin compound represented by the following general formula (i). In some embodiments, an apparatus for heat transfer is provided.
3m Innovative Properties Company

An energy converter

An energy converter includes an electrical turbo-machine (101) for converting energy contained by vaporized working fluid into electrical energy, a feed pump (105) for pumping the working fluid in a condensed form to a vaporizer (115), a pre-feed pump (106) for pumping the condensed working fluid to the suction side of the feed pump, and an ejector-pump (108) for pumping the condensed working fluid to the suction side of the pre-feed pump. The energy converter can be based on for example the organic rankine cycle.
Visorc Oy

Engine test cell

An engine testing system comprises a rotary absorber that provides a variable resistance to an engine under test and heats coolant from a cold reservoir. A hot reservoir coupled to rotary absorber stores the heated coolant for later (or concurrent) use.
Symbrium, Inc.

Method and system for processing animal waste

A method and system of processing animal waste is disclosed. In a particular embodiment, the method includes transferring animal waste to a gasifier to burn the animal waste, circulating water through a heat exchanger in a flue stack of the gasifier to generate heated water, and pumping the heated water to either an organic rankine cycle system to generate electricity, a radiant heater, or any combination thereof.
Farm Pilot Project Coordination, Inc.

Combined cycle combustion engine process and combined cycle combustion engine

The invention describes an otto cycle or diesel cycle internal combustion engine assembled with an energy and water recovery systems to rankine cycle. In the first innovation, the high pressure steam, preferably above critical pressure, is injected in combustion chamber (20) in the end of compression (c) stroke reducing the combustion temperature and increasing internal pressure in the cylinder..

Regenerative rankine cycle for vehicles

A system for regenerating energy in a vehicle. The system includes a rankine loop having a heat exchanger and a preheater configured to pre-heat a rankine working fluid prior to the rankine working fluid being heated at the heat exchanger.
Denso Corporation

Thermal to mechanical energy conversion method using a rankine cycle equipped with a heat pump

The invention relates to a thermal to energy conversion method and system using a rankine cycle equipped with a heat pump, wherein heat pump (2) is integrated in the rankine cycle.. .
Ifp Energies Nouvelles

Control an organic rankine cycle

An embodiment of the present invention is a method of controlling an organic rankine cycle system, the system comprising at least one feed pump (2), at least one heat exchanger (3), an expansion turbine (5) and a condenser (6), the organic rankine cycle comprising a feeding phase of an organic working fluid, a heating and vaporization phase of the same working fluid, an expansion and condensation phase of the same working fluid, wherein said method controls an adjusted variable (x), which is a function of an overheating of the organic fluid, by means of a controller (20) that acts by varying a control variable (y), which is a parameter of the organic fluid in its liquid phase, and wherein the adjusted variable (x) is a temperature difference ([increment]t) between a current temperature of the organic fluid in vapor phase at the turbine inlet and a temperature threshold (tlim), under which the expansion phase involves the formation of a liquid phase of the organic fluid.. .
Turboden S.r.l.

Combined electricity, heat, and chill generation for a rankine engine

A generator uses a working fluid in a single-cycle rankine engine for up to three purposes: generation of electricity; generation of hot water from heat exchanger; and generation of chill by the evaporation of liquefied working fluid. The working fluid, which may be carbon dioxide, goes through a single rankine cycle for both heat engine and heat pump.
Monarch Power Corp

Waste heat recovery system

Connected in parallel to an expander and a condenser of a rankine cycle are n sets each including a different expander and a different condenser. Devices are provided for stopping operations of the expanders in sets connected in parallel, and a pressure sensor and a temperature sensor are installed respectively in an inlet and outlet of an evaporator.
Isuzu Motors Limited



Rankine Cycle topics:
  • Rankine Cycle
  • Internal Combustion Engine
  • Heat Exchanger
  • Carbon Dioxide
  • Organic Rankine Cycle
  • Combustion
  • Evaporator
  • Refrigerant
  • Control Unit
  • Power Generation System
  • Distilled Water
  • Endothermic
  • Fuzzy Logic
  • Circulation
  • Thermal Transfer


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    This listing is a sample listing of patent applications related to Rankine Cycle for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Rankine Cycle with additional patents listed. Browse our RSS directory or Search for other possible listings.


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