US20090139484A1 - Automatically adjustable oil renewal system - Google Patents
Automatically adjustable oil renewal system Download PDFInfo
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- US20090139484A1 US20090139484A1 US11/987,547 US98754707A US2009139484A1 US 20090139484 A1 US20090139484 A1 US 20090139484A1 US 98754707 A US98754707 A US 98754707A US 2009139484 A1 US2009139484 A1 US 2009139484A1
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- 230000002401 inhibitory effect Effects 0.000 claims 3
- 239000003921 oil Substances 0.000 description 158
- 238000001914 filtration Methods 0.000 description 18
- 239000000314 lubricant Substances 0.000 description 14
- 238000002485 combustion reaction Methods 0.000 description 8
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- 238000002347 injection Methods 0.000 description 1
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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
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/10—Indicating devices; Other safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0458—Lubricant filling and draining
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/10—Indicating devices; Other safety devices
- F01M11/12—Indicating devices; Other safety devices concerning lubricant level
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0458—Lubricant filling and draining
- F01M2011/0466—Filling or draining during running
- F01M2011/0475—Filling or draining during running with combustion of used lubricant in the engine
Definitions
- the present disclosure relates generally to an oil renewal system and, more particularly, to an automatically adjustable oil renewal system.
- Engines require oil for lubrication of moving mechanical parts. Over time, the oil degrades and must be replaced. Typical oil replacement schedules require the oil to be changed every 500-1000 hrs of engine operation. Although effective at maintaining engine life, the interruption in engine operation required for the oil change can be a nuisance and cause a loss in production and profit, especially when the engine is powering a fleet vehicle at a commercial operation.
- ORS automatic oil renewal systems
- the ORS functions by metering used oil into the fuel system of the engine for subsequent combustion. Then, based on a detected low level of oil in the engine, new oil is automatically added to the system. Because each engine operates differently, the ORS must be tuned for a particular application to make sure that enough oil is being burned, while minimizing the amount of oil that is unnecessarily burned.
- the tuning described above can be difficult to perform properly.
- the oil must be manually sampled and tested for quality. If the quality is below an expected level, the ORS is adjusted to burn more oil. In contrast, if the oil quality is above the expected level, the burning of oil is turned down. The frequency of testing and adjusting is left to the discretion of the fleet operator/owner. And, unfortunately, this tuning process if often forgotten or disregarded resulting in poor engine operation and a reduction in engine life.
- a controller which is operative to selectively cause the valve to block the flow of lubricant through the first conduit and direct a portion of the lubricant through the second conduit based on the monitored conditions of the lubricant.
- the controller also directs a supply of fresh lubricant to the engine in response to the lubricant in the engine lubricant reservoir dropping below a predetermined level.
- the lubricant flowing through the second conduit may be intermittently mixed with fuel in the engine's fuel tank.
- the controller may limit the amount of lubricant that can be added to the fuel tank so as not to exceed a predetermined lubricant/fuel ratio for the engine.
- the system of the '318 patent may limit tuning and operator interaction by automating some functions (i.e., by sensing a lubricant condition and removing oil from the engine based on the condition, and by automatically replenishing the system with new oil), it may be limited. That is, no oil may be removed from the engine of the '318 patent until the oil condition has deteriorated below an unacceptable quality level, and oil removal may only be periodic. Thus, the condition of the oil within the engine of the '318 patent may constantly vary between a good condition and an unacceptable condition. This lack of condition consistency may affect performance of the engine and make some operations, for example emissions generation, unpredictable. Further, the system of the '318 patent may be wasteful by replenishing oil based solely on a level of oil contained within the engine at any given time.
- the disclosed oil renewal system is directed to overcoming one or more of the problems set forth above.
- the present disclosure is directed to an oil renewal system for an engine.
- the oil renewal system may include a removal device configured to selectively remove oil from the engine, and a condition sensor situated to generate a condition signal indicative of an oil condition.
- the oil renewal system may also include a controller in communication with the condition sensor and the removal device. The controller may be configured to determine a deterioration rate of the oil based on the condition signal, and adjust a removal rate of the oil from the engine based on the deterioration rate.
- the present disclosure is directed to a method of operating an engine.
- the method may include removing oil from the engine, and sensing a condition of oil circulated through the engine.
- the method may further include determining a deterioration rate of the oil based on the sensed condition, and adjusting a rate of the oil removing based on the deterioration rate.
- FIG. 1 is a diagrammatic illustration of an exemplary disclosed engine.
- FIG. 1 illustrates an exemplary engine 10 having a fuel system 12 and an oil renewal system (ORS) 14 .
- Engine 10 is depicted in FIG. 1 and described herein as a diesel-fueled, internal combustion engine. However, it is contemplated that engine 10 may embody any other type of internal combustion engine, such as, for example, a gasoline or gaseous fuel-powered engine.
- Engine 10 may include an engine block 16 at least partially defining a plurality of combustion chambers (not shown). It is contemplated that Engine 10 may include any number of combustion chambers and that the combustion chambers may be disposed in an “in-line” configuration, a “V” configuration, or any other conventional configuration.
- An oil pan 18 may be connected to engine block 16 to form a cavity known as a crankcase 20 located below the combustion chambers.
- Lubricant for example engine oil, may be provided from oil pan 18 to engine surfaces to minimize metal-on-metal contact and thereby inhibit damage to the surfaces.
- Oil pan 18 may serve as a sump for collecting and supplying this lubricant.
- Fuel system 12 include components that cooperate to deliver injections of pressurized fuel into each of the combustion chambers.
- fuel system 12 may include a tank 22 configured to hold a supply of fuel, and a fuel pumping arrangement 24 configured to pressurize the fuel and direct the pressurized fuel to a plurality of fuel injectors 26 by way of a manifold 28 .
- a filtering element 30 may be located within a passageway 32 connecting pumping arrangement 24 to manifold 28 . In one example, filtering element 30 may be located between filtering stages of pumping arrangement 24 , if desired. Filtering element 30 may function to remove debris and/or water from the fuel pressurized by pumping arrangement 24 .
- Fuel pumping arrangement 24 may embody, for example, a high pressure source fluidly connected to tank 22 by way of a fuel line 34 .
- Low pressure feed may be provide to the high pressure source, where the fuel may be pressurized up to as much as 300 MPa, in some cases.
- Fuel pressurized by pumping arrangement 24 and not injected by injectors 26 may be returned to tank 22 by way of a return line 36 .
- ORS 14 may have components that cooperate to maintain a target quantity and quality of oil within engine 10 .
- ORS 14 may include, among other things, a pump 38 configured to draw oil from oil pan 18 and direct the oil either back into engine 10 or to mix with fuel of fuel system 12 , one or more filtering element 40 configured to clean the oil, an oil removal device 41 , an oil replenishment device 43 , and a control system 42 configured to control operation of ORS 14 .
- Pump 38 may embody a linear or rotary actuator configured to draw oil from oil pan 18 via a passageway 44 . It is contemplated that pump 38 may be dedicated to pressurizing only the oil of ORS 14 or, alternatively, may also serve as the primary oil pump of engine 10 tasked with circulating the oil throughout engine 10 . Thus, pump 38 may be in fluid communication with fuel system 12 by way of a passageway 46 , and, in one embodiment, also in fluid communication with engine block 16 by way of a passageway 48 . One filtering element 40 may be located upstream of both passageways 46 and 48 , while a second filtering element 40 may be located within passageway 46 .
- filtering elements 40 may have different levels of filtration. That is, the filtering element 40 located upstream of passageways 46 and 48 may have a filtration size and/or efficiency less than that of the filtering element 40 located within passageway 46 . The reason for the filtration differences may be associated with the maximum size and number of particles that can be tolerated by the lubrication circuits (not shown) of engine 10 and by fuel system 12 . It is also contemplated that the filtering element 40 located within passageway 46 may be omitted, if desired, and filtering element 30 primarily relied on to sufficiently filter a mixture of oil and fuel.
- Oil replacement device 41 and oil replenishment device 43 may both embody mechanisms operable to selective pass or inhibit the flow of oil.
- oil replacement device 41 may be located downstream of pump 38 , for example within passageway 46 , to selectively regulate the flow of used oil into fuel system 12 .
- Oil replacement device may embody an injector, a valve, a diverter, or any other known device regulated by control system 42 to remove precise quantities of oil from engine 10 at desired timings (discretely or continuously).
- Oil replenishment device 43 may likewise embody an injector, a valve, a diverter, or another known device located and regulated by control system 42 to selectively pass new oil to engine 10 .
- oil replenishment device 43 may be located between engine 10 and an onboard supply 50 of new oil, for example between passageway 44 and onboard supply 50 .
- new oil from onboard supply 50 may be directed either directly into oil pan 18 , or to a low pressure side of pump 38 for circulation first through engine 10 (i.e., when replacement device 41 is not passing oil into fuel system 12 ).
- Control system 42 may be configured to regulate operation of ORS 14 in response to sensed oil conditions.
- control system 42 may include an oil quality sensor 52 , an oil level sensor 54 , and a controller 56 in communication with both of oil quality and oil level sensors 52 , 54 .
- Oil quality sensor 52 may be configured to sense a condition of the oil within engine 10 , and to generate a condition signal indicative of this condition.
- the condition may be associated with a quality of the oil.
- the condition could be an amount of soot entrained within the oil, a temperature of the oil, a viscosity of the oil, a total acid or base number of the oil, or another known condition.
- Oil quality sensor 52 is shown as being located within passageway 48 , it is contemplated that oil quality sensor 52 may be located anywhere within ORS 14 , for example, within oil pan 18 .
- Oil level sensor 54 may be configured to sense a parameter relating to an amount of oil contained within engine 10 and to generate a corresponding level signal.
- the parameter could be associated with a level of the oil relative to a predefined position or angle in oil pan 18 , a pressure of the oil at a predefined depth in oil pan 18 , a temperature at a predefined location within oil pan 18 , an electrical or acoustic dielectric constant or resistance of the oil within pan 18 , or any other known parameter.
- the level signal provided by sensor 54 may be time averaged or otherwise processed and compensated, if desired. Although shown as being separate from oil quality sensor 52 , it is contemplated that oil level sensor 54 may alternatively be integral with oil quality sensor 52 , if desired.
- Controller 56 may receive the quality and level signals from sensors 52 and 54 , and regulate the operation of oil removal and replacement devices 41 and 43 in response thereto. Controller 56 may include all the components required to run an application such as, for example, a memory, a secondary storage device, and a processor, such as a central processing unit. One skilled in the art will appreciate that the controller 56 can contain additional or different components. Controller 56 may be dedicated to control of only ORS 14 or, alternatively, may readily embody a general engine microprocessor capable of controlling numerous engine functions. Associated with controller 56 may be various other known circuits such as, for example, power supply circuitry, signal conditioning circuitry, and solenoid driver circuitry, among others.
- the disclosed oil renewal system may applicable to any engine where quality consistency of the engine's lubricating oil is important.
- the disclosed oil renewal system may ensure quality consistency by replacing deteriorated oil with new oil at a rate substantially equal to a rate of deterioration.
- the disclosed oil renewal system may provide the quality consistency in a cost efficient manner by replenishing the engine with new oil contingent upon an impending service. The operation of oil renewal system 14 will now be discussed.
- oil may be drawn from oil pan 18 and circulated throughout engine 10 .
- the oil may be supplied to engine 10 by way of pump 38 and passageways 44 and 46 .
- the oil may be supplied by a separate lubrication pump, if desired.
- pump 38 As pump 38 circulates oil from pan 18 through engine 10 , it may pass through filtering element 40 , which may remove debris and/or water from the oil.
- the oil circulated through engine 10 may be continuously cleaned by filtering element 40 , it may still degrade over time.
- the oil may collect soot from surfaces of engine 10 .
- the soot entrained within the oil builds, it may agglomerate and block passageways within engine 10 .
- the passageways become restricted, less oil may pass to critical areas of engine 10 .
- the lubricity and viscosity of the oil may change over time, thereby reducing the functionality of the oil.
- the condition of the oil may be monitored and the oil may be selectively replaced in response to the condition.
- the oil condition may be monitored by way of sensor 52 and adjusted by controller 56 . That is, sensor 52 may periodically or continuously measure a parameter (e.g., soot loading, lubricity, viscosity, temperature, total acid number, total base number, etc.) of the oil as it passes through engine 10 . Controller 56 may receive a quality signal from sensor 52 indicative of the oil condition. As controller 56 receives the quality signal over a period of time, controller 56 may determine a deterioration rate of the oil (i.e., a rate at which the condition monitored by sensor 52 changes). Controller 56 may then regulate operation of ORS 14 in response to this deterioration rate.
- a parameter e.g., soot loading, lubricity, viscosity, temperature, total acid number, total base number, etc.
- controller 56 may selectively operate oil removal device 41 to release amounts of oil to fuel system 12 . That is, oil removal device 41 may be controlled to pass oil from passageway 48 to fuel return line 36 by way of passageway 46 and filtering element 40 .
- the amount of oil passed to fuel system 12 may correspond with the rate of oil deterioration determined by controller 56 . Specifically, the amount of oil passed to fuel system 12 may be such that the oil retained within engine 10 (after replenishment of the removed oil by a substantially equal amount of clean oil) may maintain a substantially consistent quality level.
- Controller 56 may control oil removal device 41 to remove oil on a periodic or continuous basis.
- controller 56 may selectively operate oil replenishment device 43 to allow new oil from onboard supply 50 to pass into engine 10 .
- Oil replenishment device 43 may pass new oil into engine 10 such that the target amount of oil and quality of oil is maintained within engine 10 during normal operation.
- This target amount of oil and quality of oil may be different for different engines and for different applications of engine 10 .
- This target amount and quality may each be more than minimum acceptable operating amounts and qualities, and selected for optimal operation of engine 10 .
- controller 56 may change (i.e., reduce) the target amount of oil that should be maintained within engine 10 just prior to a pending servicing event.
- the indication of a pending servicing event may be received manually or automatically from a servicing system.
- the need for servicing may be determined and/or scheduled by controller 56 based on the condition of the oil or other machine or engine parameters. Then, based on a duration of time until the servicing event, controller 56 may gradually reduce the target amount of oil until the minimum acceptable amount of oil within engine 10 has been reached.
- the quality of oil maintained within engine 10 may be substantially consistent.
- a consistent oil quality may help ensure proper and predictable operation of engine 10 .
- the disclosed oil renewal system may minimize operating costs of engine 10 , by minimizing the amount of oil unnecessarily discarded from engine 10 during a servicing event.
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
An oil renewal system for an engine is disclosed. The oil renewal system may have a removal device configured to selectively remove oil from the engine, and a condition sensor situated to generate a condition signal indicative of an oil condition. The oil renewal system may also have a controller in communication with the condition sensor and the removal device. The controller may be configured to determine a deterioration rate of the oil based on the condition signal, and adjust a removal rate of the oil from the engine based on the deterioration rate.
Description
- The present disclosure relates generally to an oil renewal system and, more particularly, to an automatically adjustable oil renewal system.
- Engines require oil for lubrication of moving mechanical parts. Over time, the oil degrades and must be replaced. Typical oil replacement schedules require the oil to be changed every 500-1000 hrs of engine operation. Although effective at maintaining engine life, the interruption in engine operation required for the oil change can be a nuisance and cause a loss in production and profit, especially when the engine is powering a fleet vehicle at a commercial operation.
- To minimize downtime, engine manufacturers have developed automatic oil renewal systems (ORS) that maintain good oil within the engine at all times. The ORS functions by metering used oil into the fuel system of the engine for subsequent combustion. Then, based on a detected low level of oil in the engine, new oil is automatically added to the system. Because each engine operates differently, the ORS must be tuned for a particular application to make sure that enough oil is being burned, while minimizing the amount of oil that is unnecessarily burned.
- Although an improvement over periodic oil changes, the tuning described above can be difficult to perform properly. To tune the ORS, the oil must be manually sampled and tested for quality. If the quality is below an expected level, the ORS is adjusted to burn more oil. In contrast, if the oil quality is above the expected level, the burning of oil is turned down. The frequency of testing and adjusting is left to the discretion of the fleet operator/owner. And, unfortunately, this tuning process if often forgotten or disregarded resulting in poor engine operation and a reduction in engine life.
- One attempt to minimize oil system tuning difficulty and required operator interaction is described in U.S. Pat. No. 5,964,318 (the '318 patent) issued to Boyle et al. on Oct. 12, 1999. Specifically, the '318 patent describes a system that measures the quality and level of lubricant in an engine lubricant reservoir. The system includes a valve for selectively directing a portion of the lubricant from the engine through a first conduit for return to the engine or through a second conduit for removal from the engine. Within the first conduit are one or more sensors for sensing the condition of the lubricant passing through the first conduit. These sensors are monitored by a controller, which is operative to selectively cause the valve to block the flow of lubricant through the first conduit and direct a portion of the lubricant through the second conduit based on the monitored conditions of the lubricant. The controller also directs a supply of fresh lubricant to the engine in response to the lubricant in the engine lubricant reservoir dropping below a predetermined level. The lubricant flowing through the second conduit may be intermittently mixed with fuel in the engine's fuel tank. The controller may limit the amount of lubricant that can be added to the fuel tank so as not to exceed a predetermined lubricant/fuel ratio for the engine.
- Although the system of the '318 patent may limit tuning and operator interaction by automating some functions (i.e., by sensing a lubricant condition and removing oil from the engine based on the condition, and by automatically replenishing the system with new oil), it may be limited. That is, no oil may be removed from the engine of the '318 patent until the oil condition has deteriorated below an unacceptable quality level, and oil removal may only be periodic. Thus, the condition of the oil within the engine of the '318 patent may constantly vary between a good condition and an unacceptable condition. This lack of condition consistency may affect performance of the engine and make some operations, for example emissions generation, unpredictable. Further, the system of the '318 patent may be wasteful by replenishing oil based solely on a level of oil contained within the engine at any given time.
- The disclosed oil renewal system is directed to overcoming one or more of the problems set forth above.
- In one aspect, the present disclosure is directed to an oil renewal system for an engine. The oil renewal system may include a removal device configured to selectively remove oil from the engine, and a condition sensor situated to generate a condition signal indicative of an oil condition. The oil renewal system may also include a controller in communication with the condition sensor and the removal device. The controller may be configured to determine a deterioration rate of the oil based on the condition signal, and adjust a removal rate of the oil from the engine based on the deterioration rate.
- In another aspect, the present disclosure is directed to a method of operating an engine. The method may include removing oil from the engine, and sensing a condition of oil circulated through the engine. The method may further include determining a deterioration rate of the oil based on the sensed condition, and adjusting a rate of the oil removing based on the deterioration rate.
-
FIG. 1 is a diagrammatic illustration of an exemplary disclosed engine. -
FIG. 1 illustrates anexemplary engine 10 having afuel system 12 and an oil renewal system (ORS) 14.Engine 10 is depicted inFIG. 1 and described herein as a diesel-fueled, internal combustion engine. However, it is contemplated thatengine 10 may embody any other type of internal combustion engine, such as, for example, a gasoline or gaseous fuel-powered engine.Engine 10 may include anengine block 16 at least partially defining a plurality of combustion chambers (not shown). It is contemplated thatEngine 10 may include any number of combustion chambers and that the combustion chambers may be disposed in an “in-line” configuration, a “V” configuration, or any other conventional configuration. - An
oil pan 18 may be connected toengine block 16 to form a cavity known as acrankcase 20 located below the combustion chambers. Lubricant, for example engine oil, may be provided fromoil pan 18 to engine surfaces to minimize metal-on-metal contact and thereby inhibit damage to the surfaces.Oil pan 18 may serve as a sump for collecting and supplying this lubricant. -
Fuel system 12 include components that cooperate to deliver injections of pressurized fuel into each of the combustion chambers. Specifically,fuel system 12 may include atank 22 configured to hold a supply of fuel, and afuel pumping arrangement 24 configured to pressurize the fuel and direct the pressurized fuel to a plurality offuel injectors 26 by way of amanifold 28. A filteringelement 30 may be located within apassageway 32 connectingpumping arrangement 24 to manifold 28. In one example, filteringelement 30 may be located between filtering stages ofpumping arrangement 24, if desired. Filteringelement 30 may function to remove debris and/or water from the fuel pressurized bypumping arrangement 24. -
Fuel pumping arrangement 24 may embody, for example, a high pressure source fluidly connected totank 22 by way of afuel line 34. Low pressure feed may be provide to the high pressure source, where the fuel may be pressurized up to as much as 300 MPa, in some cases. Fuel pressurized bypumping arrangement 24 and not injected byinjectors 26 may be returned totank 22 by way of areturn line 36. - ORS 14 may have components that cooperate to maintain a target quantity and quality of oil within
engine 10. In particular, ORS 14 may include, among other things, apump 38 configured to draw oil fromoil pan 18 and direct the oil either back intoengine 10 or to mix with fuel offuel system 12, one ormore filtering element 40 configured to clean the oil, anoil removal device 41, anoil replenishment device 43, and acontrol system 42 configured to control operation ofORS 14. -
Pump 38 may embody a linear or rotary actuator configured to draw oil fromoil pan 18 via apassageway 44. It is contemplated thatpump 38 may be dedicated to pressurizing only the oil ofORS 14 or, alternatively, may also serve as the primary oil pump ofengine 10 tasked with circulating the oil throughoutengine 10. Thus,pump 38 may be in fluid communication withfuel system 12 by way of apassageway 46, and, in one embodiment, also in fluid communication withengine block 16 by way of apassageway 48. Onefiltering element 40 may be located upstream of bothpassageways second filtering element 40 may be located withinpassageway 46. - It is contemplated that filtering
elements 40 may have different levels of filtration. That is, thefiltering element 40 located upstream ofpassageways filtering element 40 located withinpassageway 46. The reason for the filtration differences may be associated with the maximum size and number of particles that can be tolerated by the lubrication circuits (not shown) ofengine 10 and byfuel system 12. It is also contemplated that thefiltering element 40 located withinpassageway 46 may be omitted, if desired, andfiltering element 30 primarily relied on to sufficiently filter a mixture of oil and fuel. -
Oil replacement device 41 andoil replenishment device 43 may both embody mechanisms operable to selective pass or inhibit the flow of oil. Specifically,oil replacement device 41 may be located downstream ofpump 38, for example withinpassageway 46, to selectively regulate the flow of used oil intofuel system 12. Oil replacement device may embody an injector, a valve, a diverter, or any other known device regulated bycontrol system 42 to remove precise quantities of oil fromengine 10 at desired timings (discretely or continuously).Oil replenishment device 43 may likewise embody an injector, a valve, a diverter, or another known device located and regulated bycontrol system 42 to selectively pass new oil toengine 10. In particular,oil replenishment device 43 may be located betweenengine 10 and anonboard supply 50 of new oil, for example betweenpassageway 44 andonboard supply 50. In this manner, new oil fromonboard supply 50 may be directed either directly intooil pan 18, or to a low pressure side ofpump 38 for circulation first through engine 10 (i.e., whenreplacement device 41 is not passing oil into fuel system 12). -
Control system 42 may be configured to regulate operation ofORS 14 in response to sensed oil conditions. For this purpose,control system 42 may include anoil quality sensor 52, anoil level sensor 54, and acontroller 56 in communication with both of oil quality andoil level sensors Oil quality sensor 52 may be configured to sense a condition of the oil withinengine 10, and to generate a condition signal indicative of this condition. The condition may be associated with a quality of the oil. For example, the condition could be an amount of soot entrained within the oil, a temperature of the oil, a viscosity of the oil, a total acid or base number of the oil, or another known condition. Althoughoil quality sensor 52 is shown as being located withinpassageway 48, it is contemplated thatoil quality sensor 52 may be located anywhere withinORS 14, for example, withinoil pan 18.Oil level sensor 54 may be configured to sense a parameter relating to an amount of oil contained withinengine 10 and to generate a corresponding level signal. For example, the parameter could be associated with a level of the oil relative to a predefined position or angle inoil pan 18, a pressure of the oil at a predefined depth inoil pan 18, a temperature at a predefined location withinoil pan 18, an electrical or acoustic dielectric constant or resistance of the oil withinpan 18, or any other known parameter. As an instantaneous measured value for this parameter may not accurately depict the current amount of oil withinengine 10, it is contemplated that the level signal provided bysensor 54 may be time averaged or otherwise processed and compensated, if desired. Although shown as being separate fromoil quality sensor 52, it is contemplated thatoil level sensor 54 may alternatively be integral withoil quality sensor 52, if desired. -
Controller 56 may receive the quality and level signals fromsensors replacement devices Controller 56 may include all the components required to run an application such as, for example, a memory, a secondary storage device, and a processor, such as a central processing unit. One skilled in the art will appreciate that thecontroller 56 can contain additional or different components.Controller 56 may be dedicated to control ofonly ORS 14 or, alternatively, may readily embody a general engine microprocessor capable of controlling numerous engine functions. Associated withcontroller 56 may be various other known circuits such as, for example, power supply circuitry, signal conditioning circuitry, and solenoid driver circuitry, among others. - The disclosed oil renewal system may applicable to any engine where quality consistency of the engine's lubricating oil is important. The disclosed oil renewal system may ensure quality consistency by replacing deteriorated oil with new oil at a rate substantially equal to a rate of deterioration. The disclosed oil renewal system may provide the quality consistency in a cost efficient manner by replenishing the engine with new oil contingent upon an impending service. The operation of
oil renewal system 14 will now be discussed. - During operation of
engine 10, oil may be drawn fromoil pan 18 and circulated throughoutengine 10. The oil may be supplied toengine 10 by way ofpump 38 andpassageways pump 38 circulates oil frompan 18 throughengine 10, it may pass through filteringelement 40, which may remove debris and/or water from the oil. - Even though the oil circulated through
engine 10 may be continuously cleaned by filteringelement 40, it may still degrade over time. For example, the oil may collect soot from surfaces ofengine 10. As the soot entrained within the oil builds, it may agglomerate and block passageways withinengine 10. As the passageways become restricted, less oil may pass to critical areas ofengine 10. In addition, the lubricity and viscosity of the oil may change over time, thereby reducing the functionality of the oil. In order to ensure adequate protection ofengine 10, the condition of the oil may be monitored and the oil may be selectively replaced in response to the condition. - The oil condition may be monitored by way of
sensor 52 and adjusted bycontroller 56. That is,sensor 52 may periodically or continuously measure a parameter (e.g., soot loading, lubricity, viscosity, temperature, total acid number, total base number, etc.) of the oil as it passes throughengine 10.Controller 56 may receive a quality signal fromsensor 52 indicative of the oil condition. Ascontroller 56 receives the quality signal over a period of time,controller 56 may determine a deterioration rate of the oil (i.e., a rate at which the condition monitored bysensor 52 changes).Controller 56 may then regulate operation ofORS 14 in response to this deterioration rate. - To regulate operation of
ORS 14,controller 56 may selectively operateoil removal device 41 to release amounts of oil tofuel system 12. That is,oil removal device 41 may be controlled to pass oil frompassageway 48 tofuel return line 36 by way ofpassageway 46 andfiltering element 40. The amount of oil passed tofuel system 12 may correspond with the rate of oil deterioration determined bycontroller 56. Specifically, the amount of oil passed tofuel system 12 may be such that the oil retained within engine 10 (after replenishment of the removed oil by a substantially equal amount of clean oil) may maintain a substantially consistent quality level.Controller 56 may controloil removal device 41 to remove oil on a periodic or continuous basis. - As oil is removed to
fuel system 12, the level of remaining withinengine 10 may decrease. To ensure thatengine 10 may always have an amount of oil sufficient to protect engine 10 (i.e., a target amount),controller 56 may selectively operateoil replenishment device 43 to allow new oil fromonboard supply 50 to pass intoengine 10.Oil replenishment device 43 may pass new oil intoengine 10 such that the target amount of oil and quality of oil is maintained withinengine 10 during normal operation. This target amount of oil and quality of oil may be different for different engines and for different applications ofengine 10. This target amount and quality may each be more than minimum acceptable operating amounts and qualities, and selected for optimal operation ofengine 10. - In order to minimize operating costs of
engine 10, the amount of oil unnecessarily discarded fromengine 10 should be minimized. That is, during some engine servicing events, the oil withinengine 10 must be discarded either as part of the servicing or event or in order to facilitate the servicing event. Thus, new oil that is directed fromonboard supply 50 intoengine 10 just prior to the servicing event may be unnecessarily discarded, thereby increasing the operating cost ofengine 10. To minimize this cost,controller 56 may change (i.e., reduce) the target amount of oil that should be maintained withinengine 10 just prior to a pending servicing event. The indication of a pending servicing event may be received manually or automatically from a servicing system. Alternatively, the need for servicing may be determined and/or scheduled bycontroller 56 based on the condition of the oil or other machine or engine parameters. Then, based on a duration of time until the servicing event,controller 56 may gradually reduce the target amount of oil until the minimum acceptable amount of oil withinengine 10 has been reached. - Several advantages may be associated with the disclosed oil renewal system. For example, the quality of oil maintained within
engine 10 may be substantially consistent. A consistent oil quality may help ensure proper and predictable operation ofengine 10. Further, the disclosed oil renewal system may minimize operating costs ofengine 10, by minimizing the amount of oil unnecessarily discarded fromengine 10 during a servicing event. - It will be apparent to those skilled in the art that various modifications and variations can be made to the disclosed oil renewal system. Other embodiments will be apparent to those skilled in the art from consideration of the specification and practice of the disclosed oil renewal system. It is intended that the specification and examples be considered as exemplary only, with a true scope being indicated by the following claims and their equivalents.
Claims (20)
1. An oil renewal system for an engine, comprising:
a removal device configured to selectively remove oil from the engine;
a condition sensor situated to generate a condition signal indicative of an oil condition;
a level sensor configured to generate a level signal indicative of an amount of oil contained within the engine;
a replenishing device operable to selectively replenish the engine with new oil based on the level signal; and
a controller in communication with the condition sensor and the removal device, the controller being configured to:
determine a deterioration rate of the oil based on the condition signal; and
adjust a removal rate of the oil from the engine based on the deterioration rate.
2. The oil renewal system of claim 1 , wherein the controller is configured to maintain the oil condition substantially consistent within the engine.
3. The oil renewal system of claim 1 , wherein the oil condition is associated with an amount of soot contained within the oil.
4. The oil renewal system of claim 1 , wherein the removed oil is mixed with a fuel supply of the engine.
5. (canceled)
6. The oil renewal system of claim 5 , wherein the controller is in further communication with the level sensor and the replenishing device, and the controller is further configured to:
calculate a time averaged value for the amount of oil contained within the engine based on the level signal; and
regulate operation of the replenishing device based on the time averaged value.
7. The oil renewal system of claim 5 , wherein the controller is in further communication with the level sensor and the replenishing device, and the controller is further configured to inhibit replenishment of the oil when an impending service of the engine is scheduled to occur within a threshold period of time.
8. The oil renewal system of claim 7 , wherein the controller is configured to:
inhibit oil replenishment only when the level signal indicates the amount of oil is greater than a minimum amount of oil; and
regulate operation of the replenishing device to replenish the engine with new oil regardless of a time duration until the impending service when the level signal indicates the amount of oil is less than the minimum amount.
9. The oil renewal system of claim 5 , wherein the controller is in further communication with the level sensor and the replenishing device, and the controller is further configured to:
regulate operation of the replenishing device to maintain a target amount of oil within the engine; and
selectively reduce the target amount based a time duration until an impending service of the engine.
10. A method of operating an engine, comprising:
removing oil from the engine;
sensing a condition of oil circulated through the engine;
determining a deterioration rate of the oil based on the sensed condition;
adjusting a rate of the oil removing based on the deterioration rate;
determining an amount of oil contained within the engine; and
selectively replenishing the engine with new oil based on the determined amount.
11. The method of claim 10 , wherein the rate is adjusted to maintain the oil condition substantially consistent.
12. The method of claim 10 , further including mixing the removed oil with a fuel supply of the engine.
13. (canceled)
14. The method of claim 13 , wherein:
determining includes calculating a time averaged value for the amount of oil contained within the engine; and
selectively replenishing includes replenishing based on the time averaged value.
15. The method of claim 13 , further including:
receiving an indication of an impending service of the engine; and
inhibiting replenishment of the oil when the impending service is scheduled to occur within a threshold period of time.
16. The method of claim 15 , wherein:
inhibiting includes inhibiting oil replenishment only when the level signal indicates the amount of oil is greater than a minimum amount of oil; and
replenishing includes replenishing the engine with new oil regardless of a time duration until the impending service when the determined amount of oil is less than the minimum amount.
17. The method of claim 13 , further including:
maintaining a target amount of oil within the engine;
receiving an indication of an impending service of the engine; and
selectively reducing the target amount based a time duration until the impending service.
18. An oil renewal system for an engine, comprising:
a level sensor configured to generate a level signal indicative of an amount of oil contained within the engine;
a replenishing device operable to selectively replenish the engine with new oil based on the level signal; and
a controller in communication with the level sensor and the replenishing device, the controller being configured to:
regulate operation of the replenishing device based on the level signal;
receive an indication of an impending service of the engine; and
selectively inhibit replenishment of the oil based on a time duration until the impending service.
19. The oil renewal system of claim 18 , wherein the controller is configured to:
inhibit oil replenishment when the time duration is less than a threshold duration and the level signal indicates the amount of oil is greater than a minimum amount of oil; and
allow replenishment regardless of the time duration when the level signal indicates the amount of oil is less than the minimum amount.
20. The oil renewal system of claim 18 , wherein the controller is configured to:
regulate operation of the replenishing device to maintain a target amount of oil within the engine;
receive an indication of an impending service of the engine; and
selectively reduce the target amount based the time duration until the impending service.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/987,547 US20090139484A1 (en) | 2007-11-30 | 2007-11-30 | Automatically adjustable oil renewal system |
PCT/US2008/013089 WO2009073113A1 (en) | 2007-11-30 | 2008-11-24 | Automatically adjustable oil renewal system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/987,547 US20090139484A1 (en) | 2007-11-30 | 2007-11-30 | Automatically adjustable oil renewal system |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090139484A1 true US20090139484A1 (en) | 2009-06-04 |
Family
ID=40352616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/987,547 Abandoned US20090139484A1 (en) | 2007-11-30 | 2007-11-30 | Automatically adjustable oil renewal system |
Country Status (2)
Country | Link |
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US (1) | US20090139484A1 (en) |
WO (1) | WO2009073113A1 (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080142304A1 (en) * | 2006-12-18 | 2008-06-19 | Richard Schutz | System and method for lubricating a transportation system |
CN102116183A (en) * | 2011-02-28 | 2011-07-06 | 华为技术有限公司 | Liquid supplementing device and engine |
EP2535708A1 (en) | 2011-06-14 | 2012-12-19 | Fiat Powertrain Technologies S.p.A. | Method for detecting the quality of the engine oil in a diesel engine and corresponding detection system |
US20130030677A1 (en) * | 2010-03-09 | 2013-01-31 | Wacker Neuson Produktion GmbH & Co. KG | Drive system with an apparatus for interrupting the operation in the case of an imminent lack of operating medium |
US20130197738A1 (en) * | 2012-02-01 | 2013-08-01 | Afton Chemical Corporation | System and method for determining a lubricant discard interval |
US8965625B2 (en) | 2012-02-01 | 2015-02-24 | Afton Chemical Corporation | System and method for extending a lubricant discard interval |
US8977421B2 (en) | 2012-02-01 | 2015-03-10 | Afton Chemical Corporation | System and method for determining a lubricant discard interval |
US9157348B2 (en) | 2012-01-31 | 2015-10-13 | Electro-Motive Diesel, Inc. | Lubrication system for a tiltable engine |
US9334769B2 (en) | 2013-01-25 | 2016-05-10 | Cummins Power Generation Ip, Inc. | Apparatuses, systems, and methods for crankcase oil sump overfill protection |
US20160376948A1 (en) * | 2015-06-24 | 2016-12-29 | Ift Gmbh | Method for operating a combustion engine |
US20170211437A1 (en) * | 2016-01-25 | 2017-07-27 | Ford Global Technologies, Llc | Lubrication system monitoring assembly and method |
DE102019111012A1 (en) * | 2019-04-29 | 2020-10-29 | Man Energy Solutions Se | Method and control device for operating an Otto internal combustion engine or a dual fuel internal combustion engine operated in Otto operating mode |
DE102019111030A1 (en) * | 2019-04-29 | 2020-10-29 | Man Energy Solutions Se | Method and control device for operating a diesel internal combustion engine or a dual-fuel internal combustion engine operated in the diesel operating mode |
US20230145029A1 (en) * | 2019-10-09 | 2023-05-11 | Man Energy Solutions France | System for monitoring an engine |
RU2797732C2 (en) * | 2019-04-29 | 2023-06-08 | Ман Энерджи Солюшнз Се | Method and device for control of diesel internal combustion engine or dual-fuel internal combustion engine operating in diesel internal combustion engine mode |
Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4495909A (en) * | 1980-12-22 | 1985-01-29 | Hurner Erwin E | Oil cleaning and recycling system |
US5390762A (en) * | 1987-08-14 | 1995-02-21 | Power Plus Corporation | Automatic crankcase oil change and makeup system |
US5562181A (en) * | 1995-06-06 | 1996-10-08 | Caylin Research And Development Corp. | Apparatus and method for automatically performing engine fluid changes |
US5676106A (en) * | 1996-12-10 | 1997-10-14 | Caterpillar Inc. | Injector system for an oil renewal system |
US5749339A (en) * | 1996-02-28 | 1998-05-12 | Cummins Engine Company, Inc. | Electronically controlled continuous lubricating oil replacement system |
US5806472A (en) * | 1995-11-21 | 1998-09-15 | Robert E. Nelson | Method and means for removal of used oil and blending with fuel for disposal in an engine |
US5964318A (en) * | 1998-01-12 | 1999-10-12 | The Lubrizol Corporation | System for maintaining the quality and level of lubricant in an engine |
US5970942A (en) * | 1996-02-28 | 1999-10-26 | Cummins Engine Company, Inc. | Electronically controlled continuous lubricating oil replacement system |
US6079380A (en) * | 1998-10-02 | 2000-06-27 | Cummins Engine Company, Inc. | Electronically controlled lubricating oil and fuel blending system |
US6205394B1 (en) * | 1998-06-05 | 2001-03-20 | Bayerische Motoren Werke Aktiengesellschaft | Automatic engine power control system for motor vehicles having a power control element |
US6213080B1 (en) * | 1996-02-28 | 2001-04-10 | Cummins Engine Company, Inc. | Electronically controlled continuous lubricating oil replacement system |
US6283082B1 (en) * | 1999-11-17 | 2001-09-04 | General Electric Company | Method and apparatus to extend the operating interval between oil changes for an internal combustion engine |
US6397811B1 (en) * | 2000-03-09 | 2002-06-04 | Cummins Inc. | Electronically controlled lubricating oil removal system |
US6750763B2 (en) * | 2002-02-04 | 2004-06-15 | Delphi Technologies, Inc. | System and method for measuring oil condition in large engines |
US6867603B2 (en) * | 2002-12-04 | 2005-03-15 | Delphi Technologies, Inc. | Method for measuring high frequency resistance in diesel engine lubrication oil |
US6938585B2 (en) * | 2002-10-23 | 2005-09-06 | General Motors Corporation | Automatic additive replenishment system for IC engine lubricating oil |
US20070113819A1 (en) * | 2005-11-21 | 2007-05-24 | A.P. Moller-Maersk A/S. | Fuel efficiency for trunk piston four-stroke diesel engines |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6463796B1 (en) * | 2000-10-12 | 2002-10-15 | The Lubrizol Corporation | Continuous on-board diagnostic lubricant monitoring system and method |
-
2007
- 2007-11-30 US US11/987,547 patent/US20090139484A1/en not_active Abandoned
-
2008
- 2008-11-24 WO PCT/US2008/013089 patent/WO2009073113A1/en active Application Filing
Patent Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4495909A (en) * | 1980-12-22 | 1985-01-29 | Hurner Erwin E | Oil cleaning and recycling system |
US5390762A (en) * | 1987-08-14 | 1995-02-21 | Power Plus Corporation | Automatic crankcase oil change and makeup system |
US5562181A (en) * | 1995-06-06 | 1996-10-08 | Caylin Research And Development Corp. | Apparatus and method for automatically performing engine fluid changes |
US5806472A (en) * | 1995-11-21 | 1998-09-15 | Robert E. Nelson | Method and means for removal of used oil and blending with fuel for disposal in an engine |
US5970942A (en) * | 1996-02-28 | 1999-10-26 | Cummins Engine Company, Inc. | Electronically controlled continuous lubricating oil replacement system |
US5749339A (en) * | 1996-02-28 | 1998-05-12 | Cummins Engine Company, Inc. | Electronically controlled continuous lubricating oil replacement system |
US5881688A (en) * | 1996-02-28 | 1999-03-16 | Cummins Engine Company, Inc. | Electronically controlled continuous lubricating oil replacement system |
US6213080B1 (en) * | 1996-02-28 | 2001-04-10 | Cummins Engine Company, Inc. | Electronically controlled continuous lubricating oil replacement system |
US6082322A (en) * | 1996-02-28 | 2000-07-04 | Cummins Engine Company, Inc. | Electronically controlled continuous lubricating oil replacement system |
US5676106A (en) * | 1996-12-10 | 1997-10-14 | Caterpillar Inc. | Injector system for an oil renewal system |
US5964318A (en) * | 1998-01-12 | 1999-10-12 | The Lubrizol Corporation | System for maintaining the quality and level of lubricant in an engine |
US6205394B1 (en) * | 1998-06-05 | 2001-03-20 | Bayerische Motoren Werke Aktiengesellschaft | Automatic engine power control system for motor vehicles having a power control element |
US6079380A (en) * | 1998-10-02 | 2000-06-27 | Cummins Engine Company, Inc. | Electronically controlled lubricating oil and fuel blending system |
US6283082B1 (en) * | 1999-11-17 | 2001-09-04 | General Electric Company | Method and apparatus to extend the operating interval between oil changes for an internal combustion engine |
US6397811B1 (en) * | 2000-03-09 | 2002-06-04 | Cummins Inc. | Electronically controlled lubricating oil removal system |
US6750763B2 (en) * | 2002-02-04 | 2004-06-15 | Delphi Technologies, Inc. | System and method for measuring oil condition in large engines |
US6938585B2 (en) * | 2002-10-23 | 2005-09-06 | General Motors Corporation | Automatic additive replenishment system for IC engine lubricating oil |
US6867603B2 (en) * | 2002-12-04 | 2005-03-15 | Delphi Technologies, Inc. | Method for measuring high frequency resistance in diesel engine lubrication oil |
US20070113819A1 (en) * | 2005-11-21 | 2007-05-24 | A.P. Moller-Maersk A/S. | Fuel efficiency for trunk piston four-stroke diesel engines |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080142304A1 (en) * | 2006-12-18 | 2008-06-19 | Richard Schutz | System and method for lubricating a transportation system |
US20130030677A1 (en) * | 2010-03-09 | 2013-01-31 | Wacker Neuson Produktion GmbH & Co. KG | Drive system with an apparatus for interrupting the operation in the case of an imminent lack of operating medium |
CN102116183A (en) * | 2011-02-28 | 2011-07-06 | 华为技术有限公司 | Liquid supplementing device and engine |
EP2535708A1 (en) | 2011-06-14 | 2012-12-19 | Fiat Powertrain Technologies S.p.A. | Method for detecting the quality of the engine oil in a diesel engine and corresponding detection system |
US9157348B2 (en) | 2012-01-31 | 2015-10-13 | Electro-Motive Diesel, Inc. | Lubrication system for a tiltable engine |
US20130197738A1 (en) * | 2012-02-01 | 2013-08-01 | Afton Chemical Corporation | System and method for determining a lubricant discard interval |
US8965625B2 (en) | 2012-02-01 | 2015-02-24 | Afton Chemical Corporation | System and method for extending a lubricant discard interval |
US8977421B2 (en) | 2012-02-01 | 2015-03-10 | Afton Chemical Corporation | System and method for determining a lubricant discard interval |
US9334769B2 (en) | 2013-01-25 | 2016-05-10 | Cummins Power Generation Ip, Inc. | Apparatuses, systems, and methods for crankcase oil sump overfill protection |
US10233800B2 (en) * | 2015-06-24 | 2019-03-19 | Ift Gmbh | Method for operating a combustion engine |
US20160376948A1 (en) * | 2015-06-24 | 2016-12-29 | Ift Gmbh | Method for operating a combustion engine |
US10711668B2 (en) * | 2016-01-25 | 2020-07-14 | Ford Global Technologies, Llc | Lubrication system monitoring assembly and method |
US20170211437A1 (en) * | 2016-01-25 | 2017-07-27 | Ford Global Technologies, Llc | Lubrication system monitoring assembly and method |
DE102019111012A1 (en) * | 2019-04-29 | 2020-10-29 | Man Energy Solutions Se | Method and control device for operating an Otto internal combustion engine or a dual fuel internal combustion engine operated in Otto operating mode |
DE102019111030A1 (en) * | 2019-04-29 | 2020-10-29 | Man Energy Solutions Se | Method and control device for operating a diesel internal combustion engine or a dual-fuel internal combustion engine operated in the diesel operating mode |
CN111852610A (en) * | 2019-04-29 | 2020-10-30 | 曼恩能源方案有限公司 | Method and control unit for operating a diesel internal combustion engine or a dual fuel internal combustion engine operating in diesel mode |
EP3734031A1 (en) * | 2019-04-29 | 2020-11-04 | MAN Energy Solutions SE | Method and control device for operating a diesel combustion engine or a dual fuel combustion engine operated in the diesel operating mode |
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US11187121B2 (en) * | 2019-04-29 | 2021-11-30 | Man Energy Solutions Se | Method and control unit for operating a diesel internal combustion engine or a dual-fuel internal combustion engine operated in the diesel mode |
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US11746680B2 (en) * | 2019-10-09 | 2023-09-05 | Man Energy Solutions France | System for monitoring an engine |
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