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GB2572188A - A pressurised oil reservoir device - Google Patents

A pressurised oil reservoir device Download PDF

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Publication number
GB2572188A
GB2572188A GB1804570.8A GB201804570A GB2572188A GB 2572188 A GB2572188 A GB 2572188A GB 201804570 A GB201804570 A GB 201804570A GB 2572188 A GB2572188 A GB 2572188A
Authority
GB
United Kingdom
Prior art keywords
oil
reservoir
engine
oil reservoir
rotating component
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.)
Withdrawn
Application number
GB1804570.8A
Other versions
GB201804570D0 (en
Inventor
Kaminski Allan
Holdsworth Richard
John Cade Michael
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Global Technologies LLC
Original Assignee
Ford Global Technologies LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ford Global Technologies LLC filed Critical Ford Global Technologies LLC
Priority to GB1804570.8A priority Critical patent/GB2572188A/en
Publication of GB201804570D0 publication Critical patent/GB201804570D0/en
Priority to DE102019106837.1A priority patent/DE102019106837A1/en
Publication of GB2572188A publication Critical patent/GB2572188A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity
    • 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
    • F01M11/02—Arrangements of lubricant conduits
    • 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
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/02—Conditioning lubricant for aiding engine starting, e.g. heating
    • 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
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/02—Conditioning lubricant for aiding engine starting, e.g. heating
    • F01M5/025—Conditioning lubricant for aiding engine starting, e.g. heating by prelubricating, e.g. using an accumulator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/14—Lubrication of pumps; Safety measures therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/06—Arrangements of bearings; Lubricating
    • 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
    • F01M11/02—Arrangements of lubricant conduits
    • F01M2011/021—Arrangements of lubricant conduits for lubricating auxiliaries, e.g. pumps or turbo chargers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Supercharger (AREA)

Abstract

A method and apparatus that includes use of a pressurised oil reservoir 16 to provide an oil supply to an internal combustion engine component when the engine is off. The arrangement includes the oil reservoir, a flow restrictor 18, and a one-way valve 14. The oil reservoir is in liquid connection with a main oil gallery 10 via the flow restrictor and the one-way valve, and fills with oil when the engine is on, and releases the oil to a rotating component, such as a turbocharger 12, when the engine is off. The oil reservoir functions as a liquid accumulator, and the reservoir may include a spring actuated piston to pump fluid from the reservoir. The one-way valve prevents oil from the oil reservoir from filling the main oil gallery when the gallery oil pressure falls as the engine is switched-off and permits all the oil from the reservoir to flow to the rotating component. The flow restrictor meters the rate of flow of the oil from the reservoir to allow pressurised lubrication to the component for long enough for it to come to a stop.

Description

The invention relates to an apparatus and method for maintaining oil pressure in an internal combustion engine, in particular to an apparatus and method for maintaining oil pressure in an internal combustion engine to lubricate rotating components, such as turbochargers, which continue rotating for a period of time after the engine has been switched off.
US 4 377 374 (Taylor) discloses a spring actuated piston pump for use in lubricating the bearings of a turbo-charger rotor both on starting and stopping an associated internal combustion engine. During operation of the engine, the pump chamber fills with oil. On stopping the engine, the piston moves under the spring bias discharging oil into the turbo-charger. A one-way valve prevents back flow of oil into the high pressure lubricating oil system.
There remains a need for an apparatus and method for maintaining oil pressure in an internal combustion engine when the engine is not running.
Summary of the invention
In a first aspect of the invention, an apparatus for maintaining oil pressure in an internal combustion engine is provided, the apparatus comprising:
(a) an oil reservoir;
(b) a one-way valve; and (c) a flow restrictor;
wherein the oil reservoir is in liquid connection with a main oil gallery via the flow restrictor and one-way valve;
wherein the oil reservoir is in liquid connection with at least one rotating component via the flow restrictor;
wherein the one-way valve prevents oil from the oil reservoir filling the main oil gallery;
wherein the flow restrictor controls oil flow into and out of the oil reservoir; and wherein, in use, the oil reservoir fills with oil when the engine is on, and releases oil to the at least one rotating component when the engine is off.
In a second aspect of the invention, a method of maintaining oil pressure in an internal combustion engine is provided, the method comprising the steps of:
(a) Filling an oil reservoir with oil from a main oil gallery when the engine is on whilst simultaneously maintaining supply of oil to at least one rotating component; then (b) Releasing oil from the oil reservoir when the engine is off to maintain supply of oil to the at least one rotating component until the at least one rotating component has stopped rotating.
Brief Description of the Figures
The invention is illustrated with reference to Figure 1 which shows a schematic of one embodiment of the apparatus of the invention.
Detailed Description of the Invention
In a first aspect of the invention an apparatus for maintaining oil pressure in an internal combustion engine is provided, the apparatus comprising:
(a) an oil reservoir;
(b) a one-way valve; and (c) a flow restrictor;
wherein the oil reservoir is in liquid connection with a main oil gallery via the flow restrictor and one-way valve;
wherein the oil reservoir is in liquid connection with at least one rotating component via the flow restrictor;
wherein the one-way valve prevents oil from the oil reservoir filling the main oil gallery;
wherein the flow restrictor controls oil flow into and out of the oil reservoir; and wherein, in use, the oil reservoir fills with oil when the engine is on, and releases oil to the at least one rotating component when the engine is off.
In a second aspect of the invention a method of maintaining oil pressure in an internal combustion engine is provided, the method comprising the steps of:
(a) Filling an oil reservoir with oil from a main oil gallery when the engine is on whilst simultaneously maintaining supply of oil to at least one rotating component; then (b) Releasing oil from the oil reservoir when the engine is off to maintain supply of oil to the at least one rotating component until the at least one rotating component has stopped rotating.
The at least one rotating component may be a turbocharger.
The the oil reservoir may in the form of a spring actuated piston pump or other form which becomes pressurised on filling with oil.
According to one embodiment of the first aspect of the invention, in use the oil reservoir releases oil to the at least one rotating component when oil pressure in the main oil gallery falls below oil pressure in the oil reservoir.
According to one embodiment of the second aspect of the invention, the oil reservoir releases oil to the at least one rotating component when oil pressure in the main oil gallery falls below oil pressure in the oil reservoir.
Figure 1 shows one embodiment of the apparatus of the invention. In particular, the Figure shows an engine main oil gallery 10 in liquid connection with a turbocharger 12 via a 1-way valve 14 and with an oil reservoir 16 via the same 1-way valve 14 and additionally a flow restrictor 18. The 1-way valve 14 allows oil to pass from the main oil gallery 10 towards the turbocharger 12 and oil reservoir 16 but prevents back flow. The flow restrictor 18 meters the flow of oil through it.
In use, when the engine is switched on, oil is pumped from the main oil gallery 10 through the 1-way valve 14 and towards the turbocharger 12 to lubricate the turbocharger bearings, and also through the flow restrictor 18 to fill the oil reservoir 16. The flow restrictor 18 meters the rate of oil flow towards the oil reservoir 16 so that the amount of oil being pumped towards the turbocharger 12 is not reduced thereby damaging the turbocharger bearings.
When the engine is switched off, the turbocharger does not immediately stop but winds down. As the oil pressure in the main oil gallery 10 falls, supply of oil to the turbocharger 12 also falls and eventually ceases. However as the oil pressure in the main oil gallery 10 drops below that in the oil reservoir 16, the oil stored in the oil reservoir will flow towards the turbocharger 12 because it is prevented by the 1-way valve 14 from returning to the main oil gallery 10, thereby maintaining the bearings of the turbocharger 12 lubricated as it winds down. The flow restrictor 18 meters the rate of flow of the oil from the oil reservoir 16 so that the period of time is extended for long enough to maintain the turbocharger bearings lubricated until the turbocharger 12 has come to a stop.

Claims (6)

1. An apparatus for maintaining oil pressure in an internal combustion engine, the apparatus comprising:
(a) an oil reservoir;
(b) a one-way valve; and (c) a flow restrictor;
wherein the oil reservoir is in liquid connection with a main oil gallery via the flow restrictor and one-way valve;
wherein the oil reservoir is in liquid connection with at least one rotating component via the flow restrictor;
wherein the one-way valve prevents oil from the oil reservoir filling the main oil gallery; wherein the flow restrictor controls oil flow into and out of the oil reservoir; and wherein, in use, the oil reservoir fills with oil when the engine is on, and releases oil to the at least one rotating component when the engine is off.
2. A method of maintaining oil pressure in an internal combustion engine comprising the steps of:
(a) Filling an oil reservoir with oil from a main oil gallery when the engine is on whilst simultaneously maintaining supply of oil to at least one rotating component; then (b) Releasing oil from the oil reservoir when the engine is off to maintain supply of oil to the at least one rotating component until the at least one rotating component has stopped rotating.
3. An apparatus according to claim 1 or a method according to claim 2, wherein the at least one rotating component is a turbocharger.
4. An apparatus according to claim 1 or claim 3, or a method according to claim 2 or claim 3, wherein the oil reservoir is in the form of a spring actuated piston pump.
5. An apparatus according to any one of claims 1, 3, or 4 wherein in use the oil reservoir releases oil to the at least one rotating component when oil pressure in the main oil gallery falls below oil pressure in the oil reservoir.
6. A method according to any one of claims 2 to 4, wherein the oil reservoir releases oil to the at least one rotating component when oil pressure in the main oil gallery falls below oil pressure in the oil reservoir.
GB1804570.8A 2018-03-22 2018-03-22 A pressurised oil reservoir device Withdrawn GB2572188A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1804570.8A GB2572188A (en) 2018-03-22 2018-03-22 A pressurised oil reservoir device
DE102019106837.1A DE102019106837A1 (en) 2018-03-22 2019-03-18 Pressurized oil collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1804570.8A GB2572188A (en) 2018-03-22 2018-03-22 A pressurised oil reservoir device

Publications (2)

Publication Number Publication Date
GB201804570D0 GB201804570D0 (en) 2018-05-09
GB2572188A true GB2572188A (en) 2019-09-25

Family

ID=62068322

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1804570.8A Withdrawn GB2572188A (en) 2018-03-22 2018-03-22 A pressurised oil reservoir device

Country Status (2)

Country Link
DE (1) DE102019106837A1 (en)
GB (1) GB2572188A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020102292A1 (en) 2020-01-30 2021-08-05 Rolls-Royce Deutschland Ltd & Co Kg Oil system of a gas turbine engine with a first oil circuit and with at least one second oil circuit and a gas turbine engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513704A (en) * 1983-12-02 1985-04-30 Evans John W Pressurized lubrication assembly for machinery having a flow restrictor device
CN2764942Y (en) * 2004-12-20 2006-03-15 粱文利 Fuel feeding device used for turbocharger
CN2888093Y (en) * 2006-01-25 2007-04-11 罗中柱 Worm wheel supercharger protection system
CN101776008A (en) * 2009-12-25 2010-07-14 郭乐禧 Turbo-charging automatic protection device
CN201963392U (en) * 2011-01-07 2011-09-07 山东交通学院 Temperature-controlled emergency stop cooling protection device for turbocharger
US20130086903A1 (en) * 2011-10-06 2013-04-11 Gm Global Technology Operations Llc. Engine assembly including fluid control to boost mechanism

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2093122B (en) 1981-02-17 1984-04-18 Taylor Frederick John Trans Ee Spring actuated piston pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513704A (en) * 1983-12-02 1985-04-30 Evans John W Pressurized lubrication assembly for machinery having a flow restrictor device
CN2764942Y (en) * 2004-12-20 2006-03-15 粱文利 Fuel feeding device used for turbocharger
CN2888093Y (en) * 2006-01-25 2007-04-11 罗中柱 Worm wheel supercharger protection system
CN101776008A (en) * 2009-12-25 2010-07-14 郭乐禧 Turbo-charging automatic protection device
CN201963392U (en) * 2011-01-07 2011-09-07 山东交通学院 Temperature-controlled emergency stop cooling protection device for turbocharger
US20130086903A1 (en) * 2011-10-06 2013-04-11 Gm Global Technology Operations Llc. Engine assembly including fluid control to boost mechanism

Also Published As

Publication number Publication date
GB201804570D0 (en) 2018-05-09
DE102019106837A1 (en) 2019-09-26

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)