GB2538983A - Engine turbocharger - Google Patents

Engine turbocharger Download PDF

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Publication number
GB2538983A
GB2538983A GB1509481.6A GB201509481A GB2538983A GB 2538983 A GB2538983 A GB 2538983A GB 201509481 A GB201509481 A GB 201509481A GB 2538983 A GB2538983 A GB 2538983A
Authority
GB
United Kingdom
Prior art keywords
exhaust
engine
turbine
outlet
inlet
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Withdrawn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
GB1509481.6A
Other versions
GB201509481D0 (en
Inventor
Graham Barker Stuart
Richard Turner Nicholas
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1509481.6A priority Critical patent/GB2538983A/en
Publication of GB201509481D0 publication Critical patent/GB201509481D0/en
Publication of GB2538983A publication Critical patent/GB2538983A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/005—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for draining or otherwise eliminating condensates or moisture accumulating in the apparatus
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/029—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles by adding non-fuel substances to exhaust
    • F01N3/0293—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles by adding non-fuel substances to exhaust injecting substances in exhaust stream
    • 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
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/20—Control of the pumps by increasing exhaust energy, e.g. using combustion chamber by after-burning
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/22—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a condensation chamber
    • 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
    • F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses
    • F01N2340/06—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses characterised by the arrangement of the exhaust apparatus relative to the turbine of a turbocharger
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/22—Water or humidity
    • 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

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

Abstract

An engine turbocharger 1 comprises an exhaust turbine 10 with inlet 11 connected to engine exhaust B, and an outlet 12. The exhaust turbine is connected to an air compressor D which in turn is connected to a cooler E leading back to engine A via air intake F. A water delivery device 20 delivers water droplets X via a nozzle 21 into the engine exhaust adjacent the inlet to the exhaust turbine. In use water delivered by the delivery device into the engine exhaust turns to steam in the hot engine exhaust gases, increasing the pressure of the exhaust gases between the engine and the inlet to drive the exhaust turbine faster. A water cooling system 30 with inlet 31 and outlet 32 may also or alternatively be provided to cool exhaust gases emerging from the turbine outlet 12.

Description

TITLE: Engine Turbocharger The present invention relates to an engine turbocharger.
Turbochargers are a type of forced induction system. They compress the air flowing into the engine, and uses the hot exhaust flow from the engine to spin a turbine, which int-urn, spins an air compressor (either directly or indirectly). The advantage of compressing the air is that it lets the engine squeeze more air into a cylinder, and more air means that more fuel can be added. Therefore, you get more power from each explosion in each cylinder. A turbocharged engine produces more power overall than the same engine without the charging. This can significantly improve the power-to-weight ratio for the engine.
The invention seeks to provide a turbocharger which increases the exhaust pressure differential across a turbocharger turbine.
According to a first aspect of the present invention there is provided an engine turbocharger comprising: a) an exhaust turbine having an inlet connectable to an engine exhaust, and an outlet, said exhaust turbine being connectable directly or indirectly to drive an air compressor, and b) a water delivery device to deliver water into the engine exhaust adjacent said inlet, in use water delivered by the delivery device into the engine exhaust turning to steam in the hot engine exhaust gases whereby increasing the pressure of the exhaust gases between the engine and the inlet and thereby increasing the pressure differential across the inlet and outlet to drive the exhaust turbine faster.
Preferably the turbocharger further comprises a water cooling system to cool exhaust gases emerging from the turbine outlet whereby to reduce pressure of said exhaust gases emerging from the turbine outlet and thereby increasing the pressure differential across the inlet and outlet to drive the exhaust turbine faster. Preferably the water cooling system condenses water in said exhaust gases emerging from the turbine outlet.
According to a second aspect of the present invention there is provided an engine turbocharger comprising: a) an exhaust turbine having an inlet connectable to an engine exhaust, and an outlet, said exhaust turbine being connectable directly or indirectly to drive an air compressor, and b) a water cooling system to cool exhaust gases emerging from the turbine outlet, in use the water cooling system reducing pressure of said exhaust gases emerging from the turbine outlet and thereby increasing the pressure differential across the inlet and outlet to drive the exhaust turbine faster.
Preferably the water cooling system condenses water in said exhaust gases emerging from the turbine outlet.
Preferably a water delivery device is provided to deliver water into the engine exhaust adjacent said inlet, and water delivered by the delivery device into the engine exhaust turning to steam in the hot engine exhaust gases whereby increasing the pressure of the exhaust gases between the engine and the inlet and thereby increasing the pressure differential across the inlet and outlet to drive the exhaust turbine faster.
An embodiment of the invention will now be described with reference to the accompanying drawing showing a schematic view.
Referring to the drawing there is shown an engine turbocharger 1 connected to an engine A. Turbocharger 1 has an exhaust turbine 10, with a turbine wheel, having an inlet 11 connectable to engine exhaust B, and an outlet 12 leading to ambient air C. Exhaust turbine 10 is connected to drive an air compressor D to deliver compressed air through a cooler E to engine air intake F. The principle of an exhaust turbine 10 driving an air compressor D to deliver compressed air through a cooler E to engine air intake F is known in the art. Whilst the exhaust turbine is shown directly driving the air compressor, the exhaust turbine could drive a generator to charge a battery, and the battery could drive a motor driving the air compressor (i.e. the compressor is indirectly driven by the exhaust turbine.
In accordance with one aspect of the invention, a water delivery device 20 is provided to deliver water, such as in the form of water droplets X through a nozzle 21, into the engine exhaust adjacent inlet 11. Water delivered by the delivery device into the engine exhaust turns to steam in the hot engine exhaust gases whereby increasing the pressure of the exhaust gases between the engine A and the inlet 11 and thereby increasing the pressure differential across the inlet 11 and outlet 12 to drive the exhaust turbine 10 faster.
In accordance with another aspect of the invention a water cooling system 30 is provided adjacent outlet 12 to cool exhaust gases emerging from the turbine outlet 12 whereby to reduce pressure of and cool said exhaust gases emerging from the turbine outlet and thereby increasing the pressure differential across the inlet and outlet to drive the exhaust turbine faster. The water cooling system condenses water in said exhaust gases emerging from the turbine outlet 12. It is considered that a relatively large amount of water will need to be passed through the system 30 from a water inlet 31 to a water outlet 32.
The water deliver device 20 and the water cooling device 30 may be manufactured as an integral part of the turbocharger or may be connected adjacent the inlet and outlet of a known turbocharger.
Whilst it is considered that both a water delivery device and water cooling device would be part of the turbocharger, the turbo charger could just have only a water delivery device 20 or only a water cooling device 30.
The invention may take a form different to that specifically described above.
Further modifications will be apparent to those skilled in the art without departing from the scope of the present invention.

Claims (7)

  1. CLAIMS1. An engine turbocharger comprising: a) an exhaust turbine having an inlet connectable to an engine exhaust, and an outlet, said exhaust turbine being connectable directly or indirectly to drive an air compressor, and b) a water delivery device to deliver water into the engine exhaust adjacent said inlet, in use water delivered by the delivery device into the engine exhaust turning to steam in the hot engine exhaust gases whereby increasing the pressure of the exhaust gases between the engine and the inlet and thereby increasing the pressure differential across the inlet and outlet to drive the exhaust turbine faster.
  2. 2. An engine turbocharger according to claim I, wherein the turbocharger further comprises a water cooling system to cool exhaust gases emerging from the turbine outlet whereby to reduce pressure of said exhaust gases emerging from the turbine outlet and thereby increasing the pressure differential across the inlet and outlet to drive the exhaust turbine faster.
  3. 3. An engine turbocharger according to claim 2, wherein the water cooling system condenses water in said exhaust gases emerging from the turbine outlet..
  4. 4. An engine turbocharger comprising: a) an exhaust turbine having an inlet connectable to an engine exhaust, and an outlet, said exhaust turbine being connectable directly or indirectly to drive an air compressor, and b) a water cooling system to cool exhaust gases emerging from the turbine outlet, in use the water cooling system reducing pressure of said exhaust gases emerging from the turbine outlet and thereby increasing the pressure differential across the inlet and outlet to drive the exhaust turbine faster.
  5. 5. An engine turbocharger according to claim 4, wherein the water cooling system condenses water in said exhaust gases emerging from the turbine outlet.
  6. 6. An engine turbocharger according to claim 4 or 5, wherein a water delivery device is provided to deliver water into the engine exhaust adjacent said inlet, and water delivered by the delivery device into the engine exhaust turning to steam in the hot engine exhaust gases whereby increasing the pressure of the exhaust gases between the engine and the inlet and thereby increasing the pressure differential across the inlet and outlet to drive the exhaust turbine faster.
  7. 7. An engine turbocharger substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
GB1509481.6A 2015-05-30 2015-05-30 Engine turbocharger Withdrawn GB2538983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1509481.6A GB2538983A (en) 2015-05-30 2015-05-30 Engine turbocharger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1509481.6A GB2538983A (en) 2015-05-30 2015-05-30 Engine turbocharger

Publications (2)

Publication Number Publication Date
GB201509481D0 GB201509481D0 (en) 2015-07-15
GB2538983A true GB2538983A (en) 2016-12-07

Family

ID=53677600

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1509481.6A Withdrawn GB2538983A (en) 2015-05-30 2015-05-30 Engine turbocharger

Country Status (1)

Country Link
GB (1) GB2538983A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3126678A1 (en) * 1981-07-07 1983-01-27 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Supercharged internal combustion engine subjected to strong load fluctuations and method for its operation
JPS5853607A (en) * 1981-09-24 1983-03-30 Tasuku Motoyama Energy conversion method for exhaust gas of internal-combustion engine
CN102619616A (en) * 2011-01-30 2012-08-01 梁天宇 Turbine supercharger
CN203925614U (en) * 2014-06-25 2014-11-05 丰田自动车株式会社 Turbosupercharger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3126678A1 (en) * 1981-07-07 1983-01-27 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Supercharged internal combustion engine subjected to strong load fluctuations and method for its operation
JPS5853607A (en) * 1981-09-24 1983-03-30 Tasuku Motoyama Energy conversion method for exhaust gas of internal-combustion engine
CN102619616A (en) * 2011-01-30 2012-08-01 梁天宇 Turbine supercharger
CN203925614U (en) * 2014-06-25 2014-11-05 丰田自动车株式会社 Turbosupercharger

Also Published As

Publication number Publication date
GB201509481D0 (en) 2015-07-15

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