US20150308318A1 - Apparatus and method of disabling a waste heat recovery apparatus working fluid flow - Google Patents
Apparatus and method of disabling a waste heat recovery apparatus working fluid flow Download PDFInfo
- Publication number
- US20150308318A1 US20150308318A1 US14/649,779 US201214649779A US2015308318A1 US 20150308318 A1 US20150308318 A1 US 20150308318A1 US 201214649779 A US201214649779 A US 201214649779A US 2015308318 A1 US2015308318 A1 US 2015308318A1
- Authority
- US
- United States
- Prior art keywords
- waste heat
- working fluid
- heat recovery
- pump
- recovery apparatus
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 76
- 239000002918 waste heat Substances 0.000 title claims abstract description 38
- 238000011084 recovery Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000002485 combustion reaction Methods 0.000 claims abstract description 16
- 230000007257 malfunction Effects 0.000 claims description 10
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims 2
- 239000006200 vaporizer Substances 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000002405 diagnostic procedure Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/065—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle the combustion taking place in an internal combustion piston engine, e.g. a diesel engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
- F01K27/02—Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the invention is directed to a Waste Heat Recovery system based on a Rankine cycle, including a working fluid circuit having a vaporizer/boiler heated by waste heat of an internal combustion engine, an expander, a condenser, and a pump for circulating a working fluid through the circuit. More particularly, the invention is directed to a shutoff valve placed at the inlet side of the pump and controlled in the event a shutdown of working fluid circulation is needed.
- waste heat recovery (WFIR) systems associated with internal combustion engines it is convenient to mechanically connect the working fluid pump to a rotating component, such as the expansion machine or the internal combustion engine, to be driven by that component.
- a rotating component such as the expansion machine or the internal combustion engine
- it is necessary to quickly stop the working fluid flow for example because of a WHR component malfunction.
- Quickly stopping a mechanically driven pump may be difficult or impossible because of difficulty stopping the component driving the pump, which, as mentioned, may be the waste heat apparatus expander or the internal combustion engine.
- a malfunction may occur as a valve actuator failure or a line transferring fluid failing to contain fluid.
- Other circumstances may include a boiler (or evaporator) rupture, which could introduce flammable fluid into the engine, causing engine runaway.
- External failures for example, a collision of the vehicle, could cause risk to operator and environment.
- Possible solutions include using a separately controlled electronic pump or a shut off valve downstream of the pump; however, neither of these solutions will mitigate risk in the event of uncontrollable pump operation, actuator failure, or line failure between pump and actuator.
- the shutoff valve is operationally connected to a controller, which may be an electronic control unit as is known in vehicles, which is itself connected to receive signals relating to the condition of components of the waste heat recovery system, and responsive thereto, control the fluid flow to the pump.
- a controller which may be an electronic control unit as is known in vehicles, which is itself connected to receive signals relating to the condition of components of the waste heat recovery system, and responsive thereto, control the fluid flow to the pump.
- FIGURE is a schematic of a waste heat recovery apparatus in accordance with the invention.
- FIGURE shows a schematic view of a waste heat recovery apparatus 10 for a vehicle having an internal combustion engine in accordance with the invention.
- the illustrated example of a waste heat recovery apparatus is one based on the Rankine cycle, and includes a working fluid circuit 12 to circulate working fluid to the apparatus components, including a boiler 20 , an expander machine 22 , a condenser 24 , an accumulator or collection tank 26 and a pump 28 .
- the exemplary waste heat recovery apparatus 10 includes a bypass line 30 to guide working fluid to avoid the expander machine 22 .
- the bypass line 30 is controlled by a bypass valve 32 to direct working fluid to the expander machine 22 , to the bypass line 30 , or to divide the working fluid for proportional flow through both the expander machine and bypass line as required by the system needs.
- Other bypass Ines may be included, for example, a line bypassing the boiler.
- the waste heat recovery apparatus 10 may include other valves and valve actuators to manage the flow rate, pressure and distribution of working fluid to the various system components.
- the condenser 24 receives the expanded working fluid, which is cooled, condensed, and collected in the accumulator or tank 26 .
- the pump 28 pumps the working fluid from the accumulator 26 to the boiler 20 where the cycle of heating and expanding repeats.
- the pump 28 may be driven by the expander machine 22 by connecting an input shaft 29 of the pump to an output shaft 23 of the expander machine.
- the input shaft 29 of the pump 28 may be connected to the drive shaft of the engine (not illustrated).
- a shutoff valve 40 is disposed in the fluid flow circuit between the accumulator 26 and the pump 28 , that is, on the inlet side of the pump.
- the shutoff valve 40 is operated to control flow of the working fluid to the pump 28 . Under certain circumstances it is necessary to quickly shut off fluid flow in the fluid circuit 10 . By closing the shutoff valve 40 at the pump inlet, no working fluid flows to the pump 28 , which causes the pump to cavitate and effectively stops the fluid flow at the outlet side of the pump.
- a controller 44 which may be the electronic control unit (ECU) for operating the waste heat recovery system or another controller on the vehicle such as the engine ECU, is connected to control the operation of the shutoff valve 40 .
- the controller 44 is also connected to receive signals from the various components of the waste heat recovery system 10 , the vehicle, and the internal combustion engine.
- the controller 44 may be connected on a common data bus with the other components, or may be directly connected to the components, as is convenient.
- the controller 44 may be connected to receive signals from an on-board diagnostics system that monitors the function of vehicle components, as is known in the art.
- the signals provided by the components and/or the diagnostics system convey information to indicate a condition of components of the waste heat recovery apparatus, the engine, or other vehicle components.
- the controller 44 may include a memory storing trigger conditions and be configured to compare received signals to the trigger conditions to identify signals indicating the valve is to be shut off. The controller 44 is thus programmed to receive the signals and generate a control signal for the valve 40 responsive to the signals.
- the trigger condition is during engine braking, the waste heat recovery system being disabled during power absorption mode to avoid decreasing engine braking effectiveness.
- the trigger condition may be a signal that engine braking is activated.
- a trigger condition may be indicated for a malfunction of a vehicle system, the engine, or the waste heat recovery system.
- a leak or rupture in the boiler 20 could allow working fluid (which may be a flammable fluid) to flow into contact with the engine exhaust.
- a trigger condition here may be indicated by a pressure loss in the boiler.
- An abnormal or unexpected pressure or temperature signal may be recognized as a trigger condition.
- Pressure and temperature may be monitored in all fluid circuit legs, that is, the conduits between each of the pump, boiler, expander, condenser, and accumulator, by providing appropriate pressure and temperature sensors.
- a sudden pressure drop in one or more circuit legs indicates a possible internal or external fluid leak. in the event of a pressure signal trigger, the shutoff valve 40 and other flow valves are closed.
- An abnormal temperature signal could indicate a malfunction of a system component, such as the boiler (abnormally low temperature signal) or the condenser (abnormally high temperature signal).
- Working fluid may leak into an engine cylinder by failure of an EGR cooler connected to a heat exchanger or boiler of the waste heat recovery apparatus. For example, a crack, burst, external object damage or the EGR cooler in which containment of working fluid is compromised may allow working fluid to enter the EGR gas stream.
- all other control parameters are sent to a pre-defined safe condition. Fluid flow to the boiler 20 is stopped and sent to bypass loops. Valves admitting fluid to the expansion machine are closed and the valve 32 is controlled so that working fluid bypasses the expansion machine and is directed to the condenser and tank.
- Conditions in the system may be monitored using diagnostic methods of system and components, for example, the aforementioned on-board diagnostic system that monitors the engine response during working fluid shut-off. If it is determined to be possible to circulate the working fluid again, for example, signals indicating the fluid circuit under normal pressure, normal operation of the waste heat recovery system will resume. lf, on the other hand, it is determined the runaway engine condition was due to working fluid entering the combustion chamber, a fault code is broadcast for the operator to service and repair the system. For example, after the valve shut-off, if engine function returns to normal, it can be assumed the runaway engine condition and a working fluid circuit abnormal condition are related. Also, a diagnostic system could monitor on engine start-up the ability of the waste heat recovery system to maintain and hold pressure, where, the ability to retain positive pressure indicates no leak being present. Multiple diagnostic methods could arrive at the same conclusion.
- Other trigger conditions include Rankine system instability (inability of the system to respond to control system pressures, temperatures and flows), and inability of the system to control working fluid flow/pressure/temperature due to failed actuators or control algorithm error (the sensed temperature or pressure exceeds the allowable target for working fluid, or sensor failure causing faults, etc.).
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
- The invention is directed to a Waste Heat Recovery system based on a Rankine cycle, including a working fluid circuit having a vaporizer/boiler heated by waste heat of an internal combustion engine, an expander, a condenser, and a pump for circulating a working fluid through the circuit. More particularly, the invention is directed to a shutoff valve placed at the inlet side of the pump and controlled in the event a shutdown of working fluid circulation is needed.
- In waste heat recovery (WFIR) systems associated with internal combustion engines, it is convenient to mechanically connect the working fluid pump to a rotating component, such as the expansion machine or the internal combustion engine, to be driven by that component. In certain circumstances it is necessary to quickly stop the working fluid flow, for example because of a WHR component malfunction. Quickly stopping a mechanically driven pump may be difficult or impossible because of difficulty stopping the component driving the pump, which, as mentioned, may be the waste heat apparatus expander or the internal combustion engine. A malfunction may occur as a valve actuator failure or a line transferring fluid failing to contain fluid. Other circumstances may include a boiler (or evaporator) rupture, which could introduce flammable fluid into the engine, causing engine runaway. External failures, for example, a collision of the vehicle, could cause risk to operator and environment.
- Possible solutions include using a separately controlled electronic pump or a shut off valve downstream of the pump; however, neither of these solutions will mitigate risk in the event of uncontrollable pump operation, actuator failure, or line failure between pump and actuator.
- According to the invention, an apparatus and method for controlling working fluid flow in a waste heat recovery apparatus includes a fluid shutoff valve positioned upstream of a working fluid pump to stop fluid flow to the pump, causing the pump to cavitate, when flow is not desired.
- According to another aspect of the invention, the shutoff valve is operationally connected to a controller, which may be an electronic control unit as is known in vehicles, which is itself connected to receive signals relating to the condition of components of the waste heat recovery system, and responsive thereto, control the fluid flow to the pump.
- The invention will be better understood by reference to the following detailed description in conjunction with the appended drawing, in which:
- The sole FIGURE is a schematic of a waste heat recovery apparatus in accordance with the invention.
- The FIGURE shows a schematic view of a waste
heat recovery apparatus 10 for a vehicle having an internal combustion engine in accordance with the invention. The illustrated example of a waste heat recovery apparatus is one based on the Rankine cycle, and includes a workingfluid circuit 12 to circulate working fluid to the apparatus components, including aboiler 20, anexpander machine 22, acondenser 24, an accumulator orcollection tank 26 and apump 28. - The
boiler 20 is arranged in heat transferring contact (heat transfer being indicated by the arrow Q) with a source ofengine waste heat 14. Theheat source 14 may be any heat generating or handling system associated with a vehicle having an internal combustion engine, including the engine exhaust, engine coolant system, the exhaust gas recirculation (EGR) cooler charge air cooler, engine oil cooler, or some combination of these. Theboiler 20 heats the working fluid, which then flows to theexpander 22 where work energy is extracted from the heated fluid. The work energy may be used, for example, to drive a generator, may be added to the engine drive shaft, or used to drive thepump 28. - The exemplary waste
heat recovery apparatus 10 includes abypass line 30 to guide working fluid to avoid theexpander machine 22. Thebypass line 30 is controlled by abypass valve 32 to direct working fluid to theexpander machine 22, to thebypass line 30, or to divide the working fluid for proportional flow through both the expander machine and bypass line as required by the system needs. Other bypass Ines may be included, for example, a line bypassing the boiler. - The waste
heat recovery apparatus 10 may include other valves and valve actuators to manage the flow rate, pressure and distribution of working fluid to the various system components. - The
condenser 24 receives the expanded working fluid, which is cooled, condensed, and collected in the accumulator ortank 26. Thepump 28 pumps the working fluid from theaccumulator 26 to theboiler 20 where the cycle of heating and expanding repeats. As mentioned, thepump 28 may be driven by theexpander machine 22 by connecting aninput shaft 29 of the pump to anoutput shaft 23 of the expander machine. Alternatively, theinput shaft 29 of thepump 28 may be connected to the drive shaft of the engine (not illustrated). - A
shutoff valve 40 is disposed in the fluid flow circuit between theaccumulator 26 and thepump 28, that is, on the inlet side of the pump. Theshutoff valve 40 is operated to control flow of the working fluid to thepump 28. Under certain circumstances it is necessary to quickly shut off fluid flow in thefluid circuit 10. By closing theshutoff valve 40 at the pump inlet, no working fluid flows to thepump 28, which causes the pump to cavitate and effectively stops the fluid flow at the outlet side of the pump. - A
controller 44, which may be the electronic control unit (ECU) for operating the waste heat recovery system or another controller on the vehicle such as the engine ECU, is connected to control the operation of theshutoff valve 40. Thecontroller 44 is also connected to receive signals from the various components of the wasteheat recovery system 10, the vehicle, and the internal combustion engine. Thecontroller 44 may be connected on a common data bus with the other components, or may be directly connected to the components, as is convenient. In addition or in the alternative, thecontroller 44 may be connected to receive signals from an on-board diagnostics system that monitors the function of vehicle components, as is known in the art. The signals provided by the components and/or the diagnostics system convey information to indicate a condition of components of the waste heat recovery apparatus, the engine, or other vehicle components. Signals indicating certain conditions are identified by the controller as trigger conditions for the shutdown of the wasteheat recovery system 10. Thecontroller 44 may include a memory storing trigger conditions and be configured to compare received signals to the trigger conditions to identify signals indicating the valve is to be shut off. Thecontroller 44 is thus programmed to receive the signals and generate a control signal for thevalve 40 responsive to the signals. - A trigger condition may be indicated when the vehicle is stopped with the engine running for inspection or service to avoid exposing an operator, inspector, service technician, or others to high pressure fluids during engine service. The trigger condition may be a signal that the engine is running along with a signal that the parking brake is engaged
- Another possible trigger condition is during engine braking, the waste heat recovery system being disabled during power absorption mode to avoid decreasing engine braking effectiveness. The trigger condition may be a signal that engine braking is activated.
- A trigger condition may be indicated for a malfunction of a vehicle system, the engine, or the waste heat recovery system. For example, a leak or rupture in the
boiler 20 could allow working fluid (which may be a flammable fluid) to flow into contact with the engine exhaust. A trigger condition here may be indicated by a pressure loss in the boiler. - Another trigger condition may be indicated by an actuator malfunction, for example, a malfunction of the
bypass valve 32 or another of the valve actuators managing working fluid flow. - Other conditions that could trigger shutoff relate to the working fluid flow conditions. An abnormal or unexpected pressure or temperature signal may be recognized as a trigger condition. Pressure and temperature may be monitored in all fluid circuit legs, that is, the conduits between each of the pump, boiler, expander, condenser, and accumulator, by providing appropriate pressure and temperature sensors. A sudden pressure drop in one or more circuit legs (as compared to expected pressure), indicates a possible internal or external fluid leak. in the event of a pressure signal trigger, the
shutoff valve 40 and other flow valves are closed. An abnormal temperature signal could indicate a malfunction of a system component, such as the boiler (abnormally low temperature signal) or the condenser (abnormally high temperature signal). - Another trigger condition is a malfunction of the internal combustion engine, which is described here as an example of an emergency shutdown situation. One type of engine malfunction that can affect the waste heat recovery system is a so-called “runaway” engine, indicated by an engine speed that exceeds an expected value for the current operating conditions. A runaway engine event may occur during downhill operation or may be caused by a fuel, coolant, oil, or working fluid leak into the intake manifold or power cylinder unit. To mitigate risk of component failure due to continuing runaway conditions, a signal is sent to the Rankine control system to stop all working fluid flow and enter a “safe” mode. The first action is to close the
shutoff valve 40 at theaccumulator 26 outlet/pump 28 inlet. This disables any further working fluid from circulating in the system, and is done in case the runaway event is caused by working fluid leaking into an engine cylinder and combusting. Working fluid may leak into an engine cylinder by failure of an EGR cooler connected to a heat exchanger or boiler of the waste heat recovery apparatus. For example, a crack, burst, external object damage or the EGR cooler in which containment of working fluid is compromised may allow working fluid to enter the EGR gas stream. Following closing of theshutoff valve 40, all other control parameters are sent to a pre-defined safe condition. Fluid flow to theboiler 20 is stopped and sent to bypass loops. Valves admitting fluid to the expansion machine are closed and thevalve 32 is controlled so that working fluid bypasses the expansion machine and is directed to the condenser and tank. - All conditions are monitored until it is determined the engine and transmission are operating properly. Conditions in the system may be monitored using diagnostic methods of system and components, for example, the aforementioned on-board diagnostic system that monitors the engine response during working fluid shut-off. If it is determined to be possible to circulate the working fluid again, for example, signals indicating the fluid circuit under normal pressure, normal operation of the waste heat recovery system will resume. lf, on the other hand, it is determined the runaway engine condition was due to working fluid entering the combustion chamber, a fault code is broadcast for the operator to service and repair the system. For example, after the valve shut-off, if engine function returns to normal, it can be assumed the runaway engine condition and a working fluid circuit abnormal condition are related. Also, a diagnostic system could monitor on engine start-up the ability of the waste heat recovery system to maintain and hold pressure, where, the ability to retain positive pressure indicates no leak being present. Multiple diagnostic methods could arrive at the same conclusion.
- Other trigger conditions include Rankine system instability (inability of the system to respond to control system pressures, temperatures and flows), and inability of the system to control working fluid flow/pressure/temperature due to failed actuators or control algorithm error (the sensed temperature or pressure exceeds the allowable target for working fluid, or sensor failure causing faults, etc.).
- The invention has been described in terms of an illustrative embodiment and components, but the scope of the invention is defined by the appended claims.
Claims (9)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/US2012/070606 WO2014098843A1 (en) | 2012-12-19 | 2012-12-19 | Apparatus and method of disabling a waste heat recovery apparatus working fluid flow |
Publications (1)
Publication Number | Publication Date |
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US20150308318A1 true US20150308318A1 (en) | 2015-10-29 |
Family
ID=50978931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US14/649,779 Abandoned US20150308318A1 (en) | 2012-12-19 | 2012-12-19 | Apparatus and method of disabling a waste heat recovery apparatus working fluid flow |
Country Status (6)
Country | Link |
---|---|
US (1) | US20150308318A1 (en) |
EP (1) | EP2935818A4 (en) |
JP (1) | JP2016507687A (en) |
CN (1) | CN104981593B (en) |
BR (1) | BR112015014528A2 (en) |
WO (1) | WO2014098843A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US9810129B2 (en) | 2016-03-08 | 2017-11-07 | Toyota Motor Engineering & Manufacturing North America, Inc. | Integrated waste heat recovery and motor assisted turbocharger system |
WO2018013028A1 (en) * | 2016-07-12 | 2018-01-18 | Scania Cv Ab | Method and system for controlling the waste heat recovery system at a predicted downhill slope |
US20180245533A1 (en) * | 2015-09-01 | 2018-08-30 | Daf Trucks N.V. | System and method for detecting and counteracting diesel engine runaway |
SE541172C2 (en) * | 2016-07-12 | 2019-04-23 | Scania Cv Ab | A method and a vehicle for controlling a WHR-system in response to a determined recoverable energy of a downhill slope |
US20190120179A1 (en) * | 2017-10-24 | 2019-04-25 | Hanon Systems | Exhaust gas recirculation system |
US10287927B2 (en) * | 2014-10-10 | 2019-05-14 | Hyundai Motor Company | Rankine cycle system for vehicle having dual fluid circulation circuit and method of controlling the same |
US20200093033A1 (en) * | 2018-09-17 | 2020-03-19 | Hewlett Packard Enterprise Development Lp | Leak mitigation system for a cooling system |
US10662894B2 (en) | 2016-02-04 | 2020-05-26 | Scania Cv Ab | Method for controlling the temperature of a waste heat recovery system and such a waste heat recovery system |
US10662820B2 (en) | 2016-02-04 | 2020-05-26 | Scania Cv Ab | Method for controlling a waste heat recovery system and such a waste heat recovery system |
DE102021213042A1 (en) | 2021-11-19 | 2023-05-25 | Mahle International Gmbh | Method for operating a waste heat utilization device in a motor vehicle |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016201338A1 (en) * | 2015-06-11 | 2016-12-15 | Eaton Corporation | Start up and shut down control strategies for volumetric energy recovery device |
US10920658B2 (en) * | 2017-11-03 | 2021-02-16 | Borgwarner Inc. | Waste heat powered exhaust pump |
SE542807C2 (en) * | 2018-03-19 | 2020-07-14 | Scania Cv Ab | An arrangement and a method for controlling a shutdown phase of a WHR-system |
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CN101187329A (en) * | 2006-11-17 | 2008-05-28 | 林耀章 | Device for producing new energy using internal combustion engine waste heat energy conversion |
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2012
- 2012-12-19 JP JP2015549328A patent/JP2016507687A/en active Pending
- 2012-12-19 CN CN201280077913.2A patent/CN104981593B/en not_active Expired - Fee Related
- 2012-12-19 BR BR112015014528A patent/BR112015014528A2/en not_active IP Right Cessation
- 2012-12-19 US US14/649,779 patent/US20150308318A1/en not_active Abandoned
- 2012-12-19 WO PCT/US2012/070606 patent/WO2014098843A1/en active Application Filing
- 2012-12-19 EP EP12890430.7A patent/EP2935818A4/en not_active Withdrawn
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US7260934B1 (en) * | 2006-04-05 | 2007-08-28 | John Hamlin Roberts | External combustion engine |
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Cited By (14)
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Also Published As
Publication number | Publication date |
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EP2935818A4 (en) | 2016-07-27 |
WO2014098843A1 (en) | 2014-06-26 |
EP2935818A1 (en) | 2015-10-28 |
CN104981593A (en) | 2015-10-14 |
CN104981593B (en) | 2018-01-12 |
JP2016507687A (en) | 2016-03-10 |
BR112015014528A2 (en) | 2017-09-26 |
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