EP2173987A1 - Druckluftsystem - Google Patents

Druckluftsystem

Info

Publication number
EP2173987A1
EP2173987A1 EP08785079A EP08785079A EP2173987A1 EP 2173987 A1 EP2173987 A1 EP 2173987A1 EP 08785079 A EP08785079 A EP 08785079A EP 08785079 A EP08785079 A EP 08785079A EP 2173987 A1 EP2173987 A1 EP 2173987A1
Authority
EP
European Patent Office
Prior art keywords
compressed air
line
valve
supplying
air system
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Withdrawn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
EP08785079A
Other languages
German (de)
English (en)
French (fr)
Inventor
Eduard Gerum
Mathias Mayr
Huba NÉMETH
Michael Herges
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.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
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 Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH, Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of EP2173987A1 publication Critical patent/EP2173987A1/de
Withdrawn legal-status Critical Current

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
    • F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
    • F02B37/10—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump
    • 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
    • F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
    • 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
    • F02B9/00—Engines characterised by other types of ignition
    • F02B9/02—Engines characterised by other types of ignition with compression ignition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • 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 invention relates to a compressed air system according to the preamble of claim 1.
  • DE 10 2006 008 783 discloses a fresh gas supply device for a turbocharged turbocharged engine.
  • a compressor is operated, behind which an air dryer is arranged to supply the dried air to a pressure chamber.
  • the air dryer is in operation of the compressor constantly in operation, which means a relatively high cost, especially because the air to be dried about 10% of the air volume in turn to regenerate the
  • Desiccant needs. With regard to the installation space, the weight and the consumption, such a compressed air system can therefore be optimized.
  • Compressed air and other compressed air consumers such as a brake system, air suspension and auxiliary consumers to be operated, air drying is important to avoid filling the pressure vessel and lines with water, especially because this can cause problems due to ice formation and corrosion. It is therefore an object of the present invention to provide a compressed air system for supplying a turbocharged reciprocating internal combustion engine whose operation is optimized and flexible.
  • the line for filling the reservoir for supplying a compressed air injection module in the flow direction of the air is branched off in front of the device for compressed air preparation.
  • the compressor supplies both the reservoir for supplying a compressed air injection module and the device for compressed air treatment, but via separate lines, so that a variable operation of the compressed air system is made possible. In particular, the entire amount of air is no longer supplied to the device for compressed air preparation.
  • the compressor is connected via a first line to the pressure vessel for supplying a compressed air injection module and via a second line to the pressure vessels for compressed air consumers.
  • At least one switchable valve is provided in a line between the compressor and the device for compressed air preparation to shut off the compressed air supply with sufficient filling of the pressure vessel for compressed air consumers.
  • the compressed air preparation can always be carried out if the corresponding pressure vessels are to be filled up. If the pressure vessels are filled, the device for compressed air treatment can be switched off with the air dryer, so that the air dryer can go through a regeneration phase. This procedure is particularly efficient because the high energy consumption for the air drying only in certain phases of the operation of the compressed air system. must be done and a regeneration of an air dryer cartridge is made possible.
  • a check valve may be arranged in front of the pressure limiting valve. In particular, when the vent valve is switched, so a return flow is avoided.
  • a first control signal is generated via corresponding pressure sensors if a maximum pressure is reached behind the check valve, and a second control signal is generated when a predetermined maximum pressure is reached in the line for supplying the device for compressed air preparation.
  • a logical switching device can be provided which generates a third control signal when the first and the second control signal are present.
  • a venting valve can be actuated, which is arranged in a delivery line of the compressor, in particular before the branching of the lines.
  • a pressure relief valve is arranged in the line between the compressor and the pressure vessel for supplying a compressed air injection module. This ensures that switching off the compressor and / or a venting valve is possible when a predetermined pressure is exceeded, in particular when the compressed air injection module no longer requires compressed air.
  • venting valve in a delivery line of the compressor in front of a branch of the lines to the compressed air injection module and the pressure vessels for compressed air actuated
  • the switching takes place via control signals that are generated by the pressure relief valve and the switchable valve before the device for compressed air preparation.
  • the vent valve can be turned off automatically when the Pressure relief valve closes and the device for compressed air treatment no longer requires compressed air.
  • a logical valve for switching the vent valve for example, be provided a logical valve for switching the vent valve.
  • Pressure relief valve an overflow valve provided which has a higher opening pressure than at least one pressure vessel for compressed air-operated consumers. As a result, the filling purity of the pressure vessels can be specified.
  • Figure 1 is a circuit diagram of a compressed air system according to the invention.
  • the compressed air system comprises a compressor 1, which sucks in fresh air and is driven, for example, by an internal combustion engine.
  • the compressor 1 is connected via a feed line 22 with a vent valve 2, behind which a branch is provided, which performs a subdivision into a first line 20 and a second line 21.
  • the first line 20 serves to supply a storage container 7 for supplying a compressed air injection module 9, in particular for an internal combustion engine.
  • a return valve 4 is provided in the line 20 behind the vent valve 2, which is arranged in front of a pressure relief valve 5. Behind the
  • Pressure relief valve 5 an overflow valve 6 is provided.
  • an automatic drain valve 8 is connected to allow a certain moisture removal.
  • the second line 21 is connected via a switchable valve 15 with a device 10 for compressed air processing, which has an air dryer and a pressure regulator for supplying individual pressure vessels 1 1 to 14.
  • the pressure vessel 11 and 12 can be used for a service brake circuit having compressed air consumers.
  • the pressure vessel 13 may, for example to operate a parking brake or a trailer.
  • the pressure vessel 14 can be used to operate other auxiliary consumers, such as a clutch.
  • the pressure vessels 11 to 14 can be used in particular on a commercial vehicle for a brake system.
  • the compressor 1 promotes compressed air via the vent valve 2 to the lines 20 and 21.
  • the pressure relief valve 5 turns off and it ers - tes control signal via a control line 23 to a logic valve 3, preferably with AND function, issued.
  • the return valve 4 prevents a backflow of the compressed air.
  • the device 10 for compressed air treatment with the pressure regulator determines that the pressure vessels 11 to 14 no longer require compressed air and a predetermined maximum pressure is reached, the switchable valve 15 is turned off via a control signal and a control line 24 is a second Control signal to the logical valve 3 given.
  • a third control signal is generated via the logic valve 3, which then also turns off the vent valve 2.
  • the logic valve 3 as a switching device can process control signals in the form of pneumatic pressures. It is also possible to use control signals in the form of electrical signals.
  • the compressor 1 or a drive or power supply of the compressor 1 can be switched off. This is due to the compressor 1 a
  • Valve 16 or a clutch 17 is provided as a switching device, by means of which or the compressor 1 in the presence of the third control signal can be switched off.
  • the overflow valve 6 may be set to a certain opening pressure on the first line 20. The opening pressure may be greater than the pressure for filling the pressure vessels 11 and 12 for the service brake circuits, so that first the pressure vessels 1 1 and 12 are filled and then on further increase in pressure, the overflow valve 6 opens and only then a supply of the reservoir 7 takes place ,
  • valves 2, 4, 5, 6 and 15 in a common module, which may also be coupled to a controller. Furthermore, it is possible to provide a heating cartridge on the compressed air injection module 9, in particular in order to avoid a freezing in this area.
  • Venting valve, and the switchable valve 15 are also made by an external control, receives and outputs the appropriate switching signals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Pipeline Systems (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP08785079A 2007-07-25 2008-07-25 Druckluftsystem Withdrawn EP2173987A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007035163A DE102007035163B4 (de) 2007-07-25 2007-07-25 Druckluftsystem
PCT/EP2008/006126 WO2009013006A1 (de) 2007-07-25 2008-07-25 Druckluftsystem

Publications (1)

Publication Number Publication Date
EP2173987A1 true EP2173987A1 (de) 2010-04-14

Family

ID=39800663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08785079A Withdrawn EP2173987A1 (de) 2007-07-25 2008-07-25 Druckluftsystem

Country Status (10)

Country Link
US (1) US8371275B2 (zh)
EP (1) EP2173987A1 (zh)
JP (1) JP5473910B2 (zh)
KR (1) KR101419096B1 (zh)
CN (1) CN101680357B (zh)
BR (1) BRPI0814596A2 (zh)
CA (1) CA2692613C (zh)
DE (1) DE102007035163B4 (zh)
RU (1) RU2467182C2 (zh)
WO (1) WO2009013006A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010024476A1 (de) * 2010-06-21 2011-12-22 Wabco Gmbh Druckluftsteuerungseinrichtung, Druckluftsteuerungsverfahren, elektronische Steuereinrichtung, Druckluftversorgungssystem, Druckluftversorgungsverfahren und Fahrzeug
EP2708429B1 (en) * 2012-09-12 2015-08-26 KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH Compressed air system for a motor vehicle
CN103434503B (zh) * 2013-08-26 2016-06-29 浙江吉利汽车研究院有限公司 一种辅助刹车系统及实现方法
GB2517075A (en) * 2014-06-30 2015-02-11 Daimler Ag Compressed air system for a vehicle
RU2705687C1 (ru) * 2018-05-03 2019-11-11 Владимир Викторович Михайлов Теплосиловая установка на горячем воздухе и способ её работы
US11821354B2 (en) * 2018-10-12 2023-11-21 Volvo Truck Corporation Compressed air generation system and automotive vehicle comprising such a system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1508488A1 (de) * 2003-08-20 2005-02-23 Haldex Brake Products GmbH Verfahren zum Betreiben einer Druckluftbeschaffungsanlage eines Kraftfahrzeuges sowie Druckluftaufbereitungseinrichtung

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CH582827A5 (zh) * 1974-09-24 1976-12-15 Sulzer Ag
DE2632015A1 (de) * 1976-07-16 1978-01-19 Motoren Turbinen Union Dieselbrennkraftmaschine
JPS58176061U (ja) * 1982-05-20 1983-11-25 日立建機株式会社 車輪式作業機の操作装置
US4714483A (en) * 1986-06-13 1987-12-22 Allied Corporation Air dryer purge control for turbocharged compressors
JPS6435024A (en) * 1987-07-30 1989-02-06 Mazda Motor Supercharger of engine
DE3737743A1 (de) * 1987-11-06 1989-05-18 Marinetechnik Gmbh Verfahren zum betrieb eines schnellaufenden hochaufgeladenen dieselmotors und dieselmotor zur durchfuehrung des verfahrens
DE3906312C1 (zh) * 1989-02-28 1989-12-21 Man Nutzfahrzeuge Ag, 8000 Muenchen, De
CN2124160U (zh) * 1992-04-15 1992-12-09 于伟 汽车增力装置
RU2075613C1 (ru) * 1994-03-28 1997-03-20 Евгений Александрович Стародетко Способ осуществления цикла поршневого двигателя внутреннего сгорания и поршневой двигатель внутреннего сгорания
DE19544621C1 (de) * 1995-11-30 1997-01-30 Grau Gmbh Druckluftaufbereitungseinrichtung für Kraftfahrzeug-Druckluftanlagen
JP2003276591A (ja) * 2002-03-25 2003-10-02 Hino Motors Ltd エアコンプレッサの制御装置
DE10224719B4 (de) * 2002-05-30 2007-03-08 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Einrichtung und Verfahren zum Speisen von Zylindern von aufgeladenen Verbrennungsmotoren
DE10357762A1 (de) * 2003-07-28 2005-02-24 Wabco Gmbh & Co.Ohg Elektronische Druckluftanlage
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DE102005013473A1 (de) * 2005-03-21 2006-09-28 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Ölabscheider, Luftaufbereitungsanlage und Druckluftversorgungseinrichtung
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DE102008008723B4 (de) * 2008-02-12 2013-07-11 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Verfahren und Vorrichtung zum Erzeugen von Druckluft und zum Einblasen derselben bei einer Verbrennungskraftmaschine

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
EP1508488A1 (de) * 2003-08-20 2005-02-23 Haldex Brake Products GmbH Verfahren zum Betreiben einer Druckluftbeschaffungsanlage eines Kraftfahrzeuges sowie Druckluftaufbereitungseinrichtung

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Title
See also references of WO2009013006A1 *

Also Published As

Publication number Publication date
CN101680357A (zh) 2010-03-24
US8371275B2 (en) 2013-02-12
US20100147271A1 (en) 2010-06-17
BRPI0814596A2 (pt) 2015-01-27
WO2009013006A1 (de) 2009-01-29
RU2010106648A (ru) 2011-08-27
JP5473910B2 (ja) 2014-04-16
JP2010534305A (ja) 2010-11-04
CA2692613A1 (en) 2009-01-29
CN101680357B (zh) 2012-07-04
DE102007035163A1 (de) 2009-01-29
KR20100045951A (ko) 2010-05-04
RU2467182C2 (ru) 2012-11-20
KR101419096B1 (ko) 2014-07-11
DE102007035163B4 (de) 2012-10-18
CA2692613C (en) 2016-09-27

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