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WO2019160488A1 - Agencement de compresseurs, moteur à combustion, et véhicule - Google Patents

Agencement de compresseurs, moteur à combustion, et véhicule Download PDF

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Publication number
WO2019160488A1
WO2019160488A1 PCT/SE2019/050128 SE2019050128W WO2019160488A1 WO 2019160488 A1 WO2019160488 A1 WO 2019160488A1 SE 2019050128 W SE2019050128 W SE 2019050128W WO 2019160488 A1 WO2019160488 A1 WO 2019160488A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressor
arrangement
valve
valve body
bleed flow
Prior art date
Application number
PCT/SE2019/050128
Other languages
English (en)
Inventor
Jonny ROHDIN
Original Assignee
Scania Cv Ab
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 Scania Cv Ab filed Critical Scania Cv Ab
Priority to DE112019000363.1T priority Critical patent/DE112019000363B4/de
Publication of WO2019160488A1 publication Critical patent/WO2019160488A1/fr

Links

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
    • F02B37/007—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in parallel, e.g. at least one pump supplying alternatively
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
    • 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
    • F02B37/001—Engines characterised by provision of pumps driven at least for part of the time by exhaust using exhaust drives arranged in parallel
    • F02B37/002—Engines characterised by provision of pumps driven at least for part of the time by exhaust using exhaust drives arranged in parallel the exhaust supply to one of the exhaust drives can be interrupted
    • 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
    • F02B37/16—Control of the pumps by bypassing charging air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
    • F04D27/0215—Arrangements therefor, e.g. bleed or by-pass valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present disclosure relates to a compressor arrangement configured to compress air to an inlet of a combustion engine.
  • the present disclosure further relates to a combustion engine comprising a compressor arrangement, and a vehicle comprising a combustion engine.
  • Compressor arrangements such as turbocharger compressor arrangements, are used to compress air to an inlet of a combustion engine.
  • a compressor arrangement can increase the performance of an engine and can increase the fuel efficiency of the engine. Efficiency and performance targets have let to the development of compressor arrangements comprising two compressors arranged in parallel.
  • Compressor arrangements comprising two compressors arranged in parallel offers several advantages, among them the ability to operate one of the two compressors at lower power outputs of the engine, and both compressors at higher power outputs of the engine. Such an operational method provides several advantages and is for example used in sequential parallel turbo arrangements.
  • the fuel efficiency can be increased. This because a compressor has a relative low efficiency at low flow rates of air through the compressor.
  • the air flow rate through the second compressor is increased, which increases the efficiency of the compressor and improves the fuel efficiency of the engine.
  • the occurrence of turbo lag can be reduced. This because if using one bigger compressor, or if using two compressors simultaneously operating in parallel, such compressors requires more time to accelerate, than a single smaller compressor.
  • turning off one of two compressors is associated with some problems. Firstly, when turning off one compressor, one should preferably in some way restrict airflow through the compressor, in order to not impair the total efficiency of the compressor arrangement by a backflow of air through the compressor. Secondly, the starting of a turned off compressor is associated with some problems. For example, since a compressor requires time to accelerate to start compress air, the compressor is preferably accelerated before an outlet of the compressor is fluidly connected to an inlet of an engine. If not, air tends to flow backwards through the compressor because the working of the active compressor increases the pressure in the inlet of the engine. Such backflow may significantly disturb an
  • surge may appear in a compressor working against a restrictor, such as a valve. Surge appears when a pressure ratio over a compressor is high and the air flow over the compressor wheel is low. If so, a flow instability is induced in the compressor and the air tends to go backward over a compressor wheel of the compressor.
  • a further general problem associated with compressor arrangements is the routing of pipes of the compressor arrangement.
  • an engine comprising a compressor arrangement is mounted in a confined space with limited dimensions, such as an engine compartment.
  • the object is achieved by a compressor arrangement configured to compress air to an inlet of a combustion engine.
  • the arrangement comprises a first compressor, a second compressor, and a conduit arrangement.
  • the second compressor is arranged in parallel to the first compressor in the conduit arrangement.
  • the arrangement further comprises a valve arranged downstream of the second compressor.
  • the valve comprises an inflow portion and an outflow portion.
  • the arrangement further comprises a bleed flow conduit with an inlet arranged at the inflow portion of the valve.
  • the arrangement comprises a valve arranged downstream of the second compressor, the valve can restrict flow through the second compressor, when the second compressor is not in use. Thereby, a backflow over the second compressor can be avoided when the second compressor is turned off.
  • the arrangement comprises a bleed flow conduit with an inlet arranged at the inflow portion of the valve, a bleed flow through the bleed flow conduit facilitates start-up of the second compressor and reduces the risk of surge in the second compressor during start-up thereof. This because the second compressor is allowed to accelerate and to start to compress air before the valve is opened. As a further result thereof, the occurrence of compressor lag is reduced.
  • a compressor arrangement is provided capable of improving performance of an engine comprising the compressor arrangement.
  • the inlet of the bleed flow conduit is arranged at the inflow portion of the valve, a simple connection of the bleed flow conduit can be provided. Thereby, conditions are provided for a space-efficient routing of pipes, in a confined space, such as an engine compartment of a vehicle. Still further, since the inlet of the bleed flow conduit is arranged at the inflow portion of the valve, conditions are provided for reducing the number of valves required for obtaining an efficient compressor arrangement, as will be further explained herein. In addition, since the inlet of the bleed flow conduit is arranged at the inflow portion of the valve, a compressor arrangement with improved flow characteristics is provided. This because during a start-up phase of the second compressor, air can flow from an outlet of the second compressor to the inflow portion of the valve, and from the inflow portion of the valve through the bleed flow conduit.
  • a compressor arrangement is provided overcoming, or at least alleviating, at least some of the above-mentioned problems and drawbacks. As a result, the above- mentioned object is achieved.
  • the valve comprises a valve body movable between an open position, in which a fluid connection between the inflow portion and an outflow portion is open, and a closed position, in which the fluid connection is closed.
  • the valve body is configured to move from the closed position towards the open position, when a pressure ratio between the inflow portion and the outflow portion is above a predetermined threshold ratio.
  • a compressor arrangement is provided capable of opening the valve in an automatic manner, when the second compressor has been accelerated to compress air to an air pressure exceeding the air pressure of the first compressor.
  • the use of sensors, control arrangements, and actuators for controlling opening of the valve is circumvented, which provides conditions for manufacturing and assembling the compressor arrangement in a cost-efficient manner.
  • the valve body is biased towards the closed position.
  • a compressor arrangement is provided capable of closing the valve in an automatic manner, for example when the pressure ratio between the inflow portion and the outflow portion is below a predetermined threshold ratio.
  • the use of sensors, control arrangements, and actuators for controlling closing of the valve is circumvented, which provides conditions for manufacturing and assembling the compressor arrangement in a cost-efficient manner.
  • the inlet of the bleed flow conduit is arranged on the valve body.
  • a compressor arrangement is provided having improved flow characteristics.
  • the valve comprises a valve element configured to close the bleed flow conduit when the valve body is in the open position.
  • the efficiency of the compressor arrangement is improved.
  • a valve is provided capable of automatically closing the bleed flow conduit when the valve body is in the open position.
  • the need for sensors, control arrangements, and actuators for controlling flow through the bleed flow conduit is circumvented, which provides conditions for manufacturing and assembling the compressor arrangement in a cost-efficient manner.
  • the valve comprises the valve element, the need for a separate valve for controlling flow through the bleed flow conduit is circumvented, which further provides conditions for manufacturing and assembling the compressor arrangement in a cost-efficient manner.
  • the valve comprises a supporting structure arranged to support the valve body, and wherein the bleed flow conduit extends through the supporting structure.
  • the bleed flow conduit extends through the supporting structure.
  • valve element is arranged on the supporting structure.
  • a simple, efficient, and reliable control of flow through the bleed flow conduit is provided.
  • valve body is slidably arranged on the supporting structure.
  • an efficient supporting of the valve body is provided, while a simple, efficient, and reliable control of flow through the bleed flow conduit is provided.
  • the valve body comprises a bore, wherein the supporting structure extends into the bore, and wherein the valve body comprises a portion of the bleed flow conduit connecting the inlet of the bleed flow conduit and a second opening arranged at the bore.
  • valve element comprises an aperture configured to face the second opening, when the valve body is in the closed position.
  • a portion of the bore is configured to cover the aperture when the valve body is in the open position.
  • an outlet of the first compressor is fluidly connected to the outflow portion of the valve.
  • the bleed flow conduit comprises an outlet fluidly connected to a portion of the conduit arrangement upstream of at least one of the first and second compressors.
  • a compressor arrangement is provided with improved flow characteristics. This because air ducted from the inflow portion of the valve is returned to a portion of the conduit arrangement having a low air pressure during operation of the compressors.
  • the compressor arrangement is a turbocharger compressor arrangement comprising a first turbocharger and a second turbocharger, wherein the first turbocharger comprises a first turbine connected to the first compressor, and wherein the second turbocharger comprises a second turbine connected to the second compressor.
  • the arrangement comprises a valve arranged downstream of the second compressor, the valve can restrict flow through the second compressor of the second turbocharger, when the second compressor is not in use. Thereby, a backflow over the second compressor can be avoided when the second compressor is turned off.
  • the arrangement comprises a bleed flow conduit with an inlet arranged at the inflow portion of the valve, a bleed flow through the bleed flow conduit facilitates start-up of the second compressor, i.e.
  • a turbocharger compressor arrangement capable of enhancing performance of an engine comprising the turbocharger compressor arrangement.
  • the inlet of the bleed flow conduit is arranged at the inflow portion of the valve, a simple connection of the bleed flow conduit can be provided, which provides conditions for a space-efficient routing of pipes of the turbocharger compressor arrangement in a confined space, for example in an engine compartment of a vehicle. Still further, since the inlet of the bleed flow conduit is arranged at the inflow portion of the valve, conditions are provided for reducing the number of valves required for obtaining an efficient turbocharger compressor arrangement. In addition, since the inlet of the bleed flow conduit is arranged at the inflow portion of the valve, a turbocharger compressor arrangement with improved flow
  • a combustion engine comprising a compressor arrangement according to some embodiments, wherein the compressor arrangement is configured to compress air to an inlet of a combustion engine.
  • a combustion engine comprises a compressor arrangement according to some embodiments, a combustion engine is provided with improved performance and a reduced risk of surge in the second compressor, as well as a reduced occurrence of compressor lag. Further, a combustion engine is provided having conditions for a space-efficient routing of pipes of the combustion engine.
  • a combustion engine is provided overcoming, or at least alleviating, at least some of the above-mentioned problems and drawbacks. As a result, the above-mentioned object is achieved.
  • the object is achieved by a vehicle comprising a combustion engine according to some embodiments.
  • a vehicle comprising a combustion engine with improved performance and reduced risk of surge in the second compressor, as well as a reduced occurrence of compressor lag.
  • a vehicle having conditions for a space-efficient routing of pipes in an engine compartment of the vehicle. Accordingly, a vehicle is provided overcoming, or at least alleviating, at least some of the above-mentioned problems and drawbacks. As a result, the above-mentioned object is achieved.
  • FIG. 1 illustrates schematically a compressor arrangement, according to some embodiments
  • Fig. 2 illustrates a cross section of a valve of the compressor arrangement, illustrated in Fig. 1 ,
  • Fig. 3 illustrates the cross section of the valve illustrated in Fig. 2, with a valve body of the valve in an open position
  • Fig. 4 illustrates a vehicle, according to some embodiments.
  • Fig. 1 illustrates schematically a compressor arrangement 1 , according to some
  • the compressor arrangement 1 is configured to compress air to an inlet 3 of a combustion engine 5.
  • the compressor arrangement 1 comprises a first compressor 7, a second compressor 9, and a conduit arrangement 1 1.
  • the conduit arrangement 1 1 is configured to fluidly connect the first and second compressors 7, 9 to the inlet 3 of a combustion engine 5.
  • the second compressor 9 is arranged in parallel to the first
  • the conduit arrangement 1 1 may further comprise one or more air filter arrangement upstream of the first and second compressors 7, 9.
  • the conduit arrangement 1 1 comprises a junction 12 fluidly connecting a respective outlet 14, 39 of the first and second compressors 7, 9 and the inlet 3 of the engine 5.
  • the conduit arrangement 1 1 comprises a charge air cooler 16, arranged between the junction 12 and the inlet 3 of the engine 5.
  • the charge air cooler 16 is configured to cool compressed air, before the compressed air is ducted to the inlet 3 of the engine 5. Thereby, the performance of the engine 5, and the fuel efficiency of the engine 5, can be improved.
  • the compressor arrangement 1 is a turbocharger compressor arrangement comprising a first turbocharger 45 and a second turbocharger 47.
  • the first turbocharger 45 comprises a first turbine 49 connected to the first compressor 7, and the second turbocharger 47 comprises a second turbine 51 connected to the second compressor 9.
  • the first and/or the second compressor 7, 9 may be another type of compressor, such as an electrically driven compressor, or a mechanically driven compressor.
  • the compressor arrangement 1 further comprises a valve 13 arranged downstream of the second compressor 9.
  • the valve 13 comprises an inflow portion 15 and an outflow portion 17.
  • the inflow portion 15 is fluidly connected to the outlet 14 of the second compressor 9, and the outflow portion 17 is fluidly connected to the inlet 3 of the engine 5, via the junction 12.
  • the outlet 39 of the first compressor 7 is thus fluidly connected to the outflow portion 17 of the valve 13, via the junction 12.
  • the compressor arrangement 1 further comprises a bleed flow conduit 19 with an inlet arranged at the inflow portion 15 of the valve 13.
  • the bleed flow conduit 19 comprises an outlet 41 fluidly connected to a portion 43 of the conduit arrangement 1 1 upstream of the first and second compressors 7, 9.
  • the outlet 41 of the bleed flow conduit 19 may be connected to another non-pressurized portion of a conduit arrangement, or to the atmosphere.
  • Fig. 2 illustrates a cross section of the valve 13, illustrated in Fig. 1.
  • the valve 13 comprises a valve body 23 movable between an open position and a closed position.
  • the valve body 23 is illustrated in the closed position.
  • a fluid connection is closed between the inflow portion 15 and an outflow portion 17.
  • the valve body 23 comprises a sealing 26 which further seals the fluid connection between the inflow portion 15 and an outflow portion 17, when the valve body 23 is in the closed position.
  • Fig. 3 illustrates the cross section of the valve 13 illustrated in Fig. 2, with the valve body 23 in the open position.
  • a fluid connection is open between the inflow portion 15 and an outflow portion 17.
  • the valve body 23 is configured to move from the closed position, illustrated in Fig. 2, towards the open position, illustrated in Fig. 3, when a pressure ratio between the inflow portion 15 and the outflow portion 17 is above a predetermined threshold ratio.
  • the valve body 23 is biased towards the closed position by a spring 24.
  • the inlet 21 of the bleed flow conduit 19 is arranged on the valve body 23.
  • the valve body 23 is cone-shaped, and the inlet 21 of the bleed flow conduit 19 is arranged on a cone-shaped surface of the valve body 23 facing the inflow portion 15.
  • the valve 13 comprises a supporting structure 25 arranged to support the valve body 23.
  • the valve body 23 comprises a bore 29.
  • the supporting structure 25 extends into the bore 29.
  • the valve body 23 is slidably arranged on the supporting structure 25 between the open and closed positions.
  • the bleed flow conduit 19 extends through the supporting structure 25.
  • the valve 13 comprises a valve element 27 configured to close the bleed flow conduit 19 when the valve body 23 is in the open position.
  • the valve element 27 is arranged on the supporting structure 25.
  • the valve body 23 comprises a portion 31 of the bleed flow conduit 19 connecting the inlet 21 of the bleed flow conduit 19 and a second opening 33 arranged at the bore 29.
  • the valve element 27 comprises an aperture 35 configured to face the second opening 33, when the valve body 23 is in the closed position.
  • a portion 37 of the bore 29 is configured to cover the aperture 35 when the valve body 23 is in the open position. Thereby, an efficient closing of the bleed flow conduit 19 is provided.
  • the aperture 35 illustrated in Fig.
  • the turbocharger compressor arrangement 1 illustrated in Fig. 1 , comprises an exhaust valve 32.
  • the exhaust valve 32 is illustrated as being arranged downstream of the second turbine 51.
  • the exhaust valve 32 may be arranged upstream of the second turbine 51 .
  • By closing the exhaust valve 32 all exhaust gas from an outlet manifold 34 is ducted through the first turbine 49 of the first turbocharger 45.
  • the first turbine 49 will spin a turbine wheel of the first compressor 7, and the first compressor 7 will compress air to the inlet 3 of the engine 5. Since the exhaust valve 32 is closed, no exhaust gas will be ducted through the second turbine 51 of the second turbocharger 47.
  • the second turbine 51 and a compressor wheel of the second compressor 9 will be at stand still.
  • the pressure at the outflow portion 17 of the valve 13 is higher than the pressure at the inflow portion 15 of the valve 13.
  • a control unit of the engine 5 may start to control the exhaust valve 32 to a partially open position, or to a fully open position.
  • exhaust gas will start to flow also through the second turbine 51 of the second turbo compressor 47.
  • the second turbine 51 and a compressor wheel of the second compressor 9 start to rotate and begin an acceleration phase.
  • air can flow from the outlet 14 of the second compressor 9 into the inflow portion 15 of the valve 13, and out from the inflow portion 15 of the valve 13 via the bleed flow conduit 19. In this manner, the second compressor 9 can accelerate in an efficient manner despite the fact that the valve 13 is in the closed position.
  • valve body 23 When the compressor wheel of the second compressor 9 reaches a rotational velocity sufficient for causing the pressure ratio between the inflow portion 15 and the outflow portion 17 of the valve 13 to rise above the predetermined threshold ratio, the valve body 23 is displaced from the closed position to the open position. As a result, the outlet 14 of the second compressor 9 is fluidly connected to the inlet 3 of the engine 5, and the second compressor 9 will compress air to the inlet 3 of the engine 5. Further, when the valve body 23 is displaced from the closed position to the open position the valve element 27 closes the bleed flow conduit 19. In this manner, substantially all air compressed by the second compressor 9 is ducted to the inlet 3 of the engine 5.
  • a control unit of the engine 5 may control the exhaust valve 32 to a closed position.
  • exhaust gas will stop to flow through the second turbine 51 of the second turbo compressor 47.
  • the second turbine 51 and a compressor wheel of the second compressor 9 starts to slow down.
  • the compressor wheel of the second compressor 9 reaches a rotational velocity sufficiently low for causing the pressure ratio between the inflow portion 15 and the outflow portion 17 of the valve 13 to decline below the predetermined threshold ratio, the valve body 23 is displaced from the open position to the closed position. In this manner, the first compressor 7 will alone compress air to the inlet 3 of the engine.
  • the biasing of the spring 24 ensures that the valve body 23 is in the closed position.
  • the valve 13 can assume the open and the closed position without the need for actuators, sensors, control units, and the like.
  • the valve 13 can open and close the bleed flow conduit 19 in an efficient manner without the need for actuators, sensors, control units, and the like.
  • the first compressor 7, and/or the second compressor 9 may form part of another type of compressor devices, such as an electrically driven compressor device, or a mechanically driven compressor device.
  • the activation and deactivation of the second compressor 9 may be performed in another manner than by using an exhaust valve 32, for example electrically or
  • the bleed flow conduit 19 comprises two inlets 21 arranged on the valve body 23.
  • the bleed flow conduit 19 may comprise another number of inlets, such as one, three, four, or the like.
  • the bleed flow conduit 19 may comprise one or more inlets arranged at another component of the inflow portion 15 of the valve 13, such as a wall of the inflow portion 15.
  • the second compressor 9 may be larger in size and capacity than the first compressor 7. Thereby, the efficiency range of the compressor arrangement 1 is further widened.
  • the combustion engine 1 may be a compression ignition engine, such as a diesel engine, or an Otto engine with a spark-ignition device, wherein the Otto engine may be configured to run on gas, petrol, alcohol or similar volatile fuels or combinations thereof.
  • Fig. 4 illustrates a vehicle 53, according to some embodiments.
  • the vehicle 53 comprises wheels 54 and a combustion engine 5 according to the embodiments illustrated in Fig. 1.
  • the combustion engine 5 is configured to provide motive power to the vehicle 53 via one or more of the wheels 54 of the vehicle 53.
  • the vehicle 53 illustrated in Fig. 4 is a truck.
  • the combustion engine 5, as referred to herein may be comprised in another type of manned or unmanned vehicle for land or water-based propulsion such as a lorry, a bus, a construction vehicle, a tractor, a car, a boat, a ship, or the like.
  • the combustion engine 5, as referred to herein may be a stationary internal combustion engine, for example an internal combustion engine of an engine driven generator.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Supercharger (AREA)
  • Compressor (AREA)

Abstract

L'invention concerne un agencement (1) de compresseurs conçu pour comprimer de l'air vers une entrée (3) d'un moteur à combustion (5). L'agencement (1) comprend un premier compresseur (7), un second compresseur (9) et un agencement de conduits (11). Le second compresseur (9) est agencé en parallèle au premier compresseur (7) dans l'agencement de conduits (11). L'agencement (1) comprend en outre une soupape (13) agencée en aval du second compresseur (9). La soupape (13) comprend une partie d'entrée (15) et une partie de sortie (17). L'agencement (1) comprend en outre un conduit d'écoulement de purge (19) doté d'un orifice d'entrée (21) agencé au niveau de la partie d'entrée (15) de la soupape (13). La présente invention concerne également un moteur à combustion (5) comprenant un agencement (1) de compresseurs, et un véhicule (53) comprenant un moteur à combustion (5).
PCT/SE2019/050128 2018-02-15 2019-02-14 Agencement de compresseurs, moteur à combustion, et véhicule WO2019160488A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112019000363.1T DE112019000363B4 (de) 2018-02-15 2019-02-14 Verdichteranordnung, Verbrennungsmotor und Fahrzeug

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1850164-3 2018-02-15
SE1850164A SE542129C2 (en) 2018-02-15 2018-02-15 Compressor Arrangement with two compressors in parallel and a Combustion Engine and a Vehicle comprising such arrangement

Publications (1)

Publication Number Publication Date
WO2019160488A1 true WO2019160488A1 (fr) 2019-08-22

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PCT/SE2019/050128 WO2019160488A1 (fr) 2018-02-15 2019-02-14 Agencement de compresseurs, moteur à combustion, et véhicule

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SE (1) SE542129C2 (fr)
WO (1) WO2019160488A1 (fr)

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CN113623064A (zh) * 2021-07-08 2021-11-09 泰州科华船舶科技有限公司 一种带电涡轮增压器的发电机组

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SE542129C2 (en) 2020-03-03

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