EP2245305A1 - Nutzfahrzeug mit einem gekühlten kompressor und verfahren zum kühlen eines kompressors - Google Patents
Nutzfahrzeug mit einem gekühlten kompressor und verfahren zum kühlen eines kompressorsInfo
- Publication number
- EP2245305A1 EP2245305A1 EP09703550A EP09703550A EP2245305A1 EP 2245305 A1 EP2245305 A1 EP 2245305A1 EP 09703550 A EP09703550 A EP 09703550A EP 09703550 A EP09703550 A EP 09703550A EP 2245305 A1 EP2245305 A1 EP 2245305A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compressor
- cooling circuit
- cooling
- cooled
- drive motor
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000003570 air Substances 0.000 description 27
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 206010063493 Premature ageing Diseases 0.000 description 1
- 208000032038 Premature aging Diseases 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/002—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for driven by internal combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
- F04B39/064—Cooling by a cooling jacket in the pump casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
Definitions
- the invention relates to a utility vehicle with a cooled over a first cooling circuit drive motor and a compressor for generating compressed air, wherein the compressor is drivable via the drive motor.
- the invention further relates to a method for operating a compressor for the compressed air supply of a commercial vehicle with a cooled over a first cooling circuit drive motor, wherein the compressor is drivable via the drive motor.
- the compressed air supply device usually includes a compressor that sucks in and compresses ambient air, as well as other components for conditioning the compressed air for the downstream consumers.
- the compressor is normally driven directly by the combustion engine arranged in the commercial vehicle, which is also used for propulsion of the vehicle.
- the ambient air heats up the compressed air together with the compressor, which is why the cylinder head of the compressor must be cooled together with the cylinder wall of the compressor in order to avoid overheating and ideally to keep the air temperature at the compressor outlet as low as possible. This is advantageous in terms of the further treatment of compressed air, in particular air drying.
- the air is gen entzo- in a downstream of the compressor air filter cartridge the humidity.
- This air filter cartridge containing a desiccant which can only to a maximum of 80 0 C of the air extract moisture. Therefore, a lower maximum allowable temperature of 60 0 C is given to allow effective drying.
- the compressed air reaches at the exit of the piston chamber ⁇ réelle temperatures of up to 320 0 C.
- the temperature must not exceed 220 0 C. This results in the need to cool the air between the compressor and the air filter cartridge.
- a pressure line with several meters in length is used in the prior art, wherein the heated compressed air can cool during the passage of the pressure line from the compressor to the air filter cartridge without further cooling measures.
- the disadvantage here is the pressure loss due to the long line and the construction effort caused by the pressure line itself, which is why you try to keep this line as short as possible.
- For cooling the compressor is therefore often resorted to an active cooling, wherein the cooling water circuit of the internal combustion engine is tapped to cool the compressor. This can be done very easily because the compressor is located close to the internal combustion engine.
- the disadvantage here, however, that the cooling circuit of the internal combustion engine has a working temperature between 85 and 115 0 C, which is why in the region of the cylinder head only a cooling to 140 to 150 0 C can be achieved.
- Modern commercial vehicles in particular those designed for future emission standards such as Euro 6, have an even higher working temperature of the cooling circuit in order to be able to achieve better exhaust gas values.
- increasing the working temperature of the refrigeration cycle simultaneously increases the temperature attainable in cooling the compressed air.
- the invention has for its object to provide a commercial vehicle with a cooled compressor, in particular, no long cooling line between the compressor and an air filter cartridge is necessary.
- the invention is based on the generic utility vehicle in that a second cooling circuit is provided, with which the compressor is cooled.
- the use of a second cooling circuit for cooling the compressor decouples the achievable in the cooling of the compressor temperature of the compressed air completely from the operating temperature of the first cooling circuit, which cools the drive motor.
- the operating temperature of the second cooling circuit is different from the operating temperature of the first cooling circuit. For example, if the operating temperature of the second cooling circuit is smaller than the operating temperature of the first cooling circuit, then a lower temperature of the compressed air from the compressor can be achieved.
- a hydraulic pump is provided in the utility vehicle, which is arranged on the compressor and can also be cooled via the second cooling circuit.
- the hydraulic pump of a modern commercial vehicle can be advantageously cooled to prevent premature aging of a hydraulic fluid used. A reduction of the temperature peaks occurring in the hydraulic pump therefore has a positive effect on the service intervals of the commercial vehicle.
- the generic method for operating a compressor is further developed in that the compressor is cooled by a second cooling circuit.
- the advantages and peculiarities are also implemented as part of a procedure.
- Figure 1 is a simple schematic representation of a commercial vehicle with a drive motor, wherein the drive motor also drives a compressor and
- Figure 2 is another simple schematic representation of a commercial vehicle with a drive motor, wherein the drive motor also drives a compressor.
- FIG. 1 shows a simple schematic representation of a commercial vehicle with a drive motor, wherein the drive motor also drives a compressor.
- the illustrated utility vehicle 10 is driven by the drive motor 14 driven, which is cooled by a first cooling circuit 12 with a first heat exchanger 22.
- a compressor 16 and a compressor 16 downstream hydraulic pump is driven by the drive motor 14.
- the compressor 16 is cooled by a second cooling circuit 18 with a second heat exchanger 26, wherein the second cooling circuit 18 further cools another unit 30.
- the first heat exchanger 22 and the second heat exchanger 26 are blown by a first fan 24 and a second fan 28 to increase the cooling capacity.
- the operating temperature of the second cooling circuit 18 can be adjusted by changing the cooling capacity of the second heat exchanger 26.
- An additional possibility for influencing exists via the choice of the rotational speed of the second fan 28.
- the further unit 30 may be, for example, a motor control for the drive motor 14, wherein the electronic components of such a motor control are naturally sensitive to heat and therefore require appropriate cooling.
- a low operating temperature of the second cooling circuit 18 for example, 50 ° C.
- a high temperature gradient arises between the air compressed in the compressor 16 and the coolant circulating in the second cooling circuit 18.
- This large temperature gradient enables efficient heat transfer from the heated compressed air to the cooler coolant.
- the compressed air can be cooled more strongly than when using the warmer first cooling circuit 12, the operating temperature between 85 and see see 85 0 C or more.
- the better cooling of the compressor in particular the cylinder walls of the compressor, also reduces the ejection of oil and thereby also allows easier preparation of the compressed air.
- FIG. 2 shows another simple schematic representation of a commercial vehicle with a drive motor, wherein the drive motor also drives a compressor.
- the hydraulic pump 20 is likewise cooled by the second cooling circuit 18, with the cooling of the hydraulic pump 20 taking place parallel to the cooling of the compressor 16.
- a linear coupling of the hydraulic pump 20 in the second cooling circuit is also conceivable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air-Conditioning For Vehicles (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008005436A DE102008005436A1 (de) | 2008-01-22 | 2008-01-22 | Nutzfahrzeug mit einem gekühlten Kompressor und Verfahren zum Kühlen eines Kompressors |
PCT/EP2009/000143 WO2009092533A1 (de) | 2008-01-22 | 2009-01-13 | Nutzfahrzeug mit einem gekühlten kompressor und verfahren zum kühlen eines kompressors |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2245305A1 true EP2245305A1 (de) | 2010-11-03 |
EP2245305B1 EP2245305B1 (de) | 2012-03-21 |
Family
ID=40521710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09703550A Not-in-force EP2245305B1 (de) | 2008-01-22 | 2009-01-13 | Nutzfahrzeug mit einem gekühlten kompressor und verfahren zum kühlen eines kompressors |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2245305B1 (de) |
AT (1) | ATE550549T1 (de) |
DE (1) | DE102008005436A1 (de) |
WO (1) | WO2009092533A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2197174A1 (de) | 2008-12-10 | 2010-06-16 | AVILA CHULIA, Antonio | Verfahren zur Verschlüsselung und Authentifizierung eines Datensignals |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016100963A1 (de) | 2016-01-21 | 2017-07-27 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Luftversorgungsanlage |
WO2019022900A1 (en) * | 2017-07-27 | 2019-01-31 | Onboard Dynamics, Inc. | DOUBLE ZONE COOLING SYSTEM FOR COMBINED ENGINE COMPRESSORS |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1145502B (de) * | 1960-01-05 | 1963-03-14 | Westinghouse Bremsen Gmbh | Mit einer Zahnradpumpe gekuppelter Luftverdichter mit hin- und hergehendem Kolben fuer Fahrzeuge, insbesondere Kraftfahrzeuge |
FR2288887A1 (fr) * | 1974-10-21 | 1976-05-21 | Roger Claude | Procede et dispositif pour ameliorer le rendement d'un groupe motocompresseur |
CH675147A5 (de) * | 1987-08-03 | 1990-08-31 | Bbc Brown Boveri & Cie | |
US5056601A (en) * | 1990-06-21 | 1991-10-15 | Grimmer John E | Air compressor cooling system |
DE4116192C2 (de) * | 1991-05-17 | 1998-04-09 | Opel Adam Ag | Servopumpe für eine hydraulisch wirkende Servoeinrichtung eines Kraftfahrzeuges |
DE10139314A1 (de) * | 2001-08-09 | 2003-03-06 | Deere & Co | Kühlsystem für Kraftfahrzeugantriebe |
-
2008
- 2008-01-22 DE DE102008005436A patent/DE102008005436A1/de not_active Ceased
-
2009
- 2009-01-13 WO PCT/EP2009/000143 patent/WO2009092533A1/de active Application Filing
- 2009-01-13 EP EP09703550A patent/EP2245305B1/de not_active Not-in-force
- 2009-01-13 AT AT09703550T patent/ATE550549T1/de active
Non-Patent Citations (1)
Title |
---|
See references of WO2009092533A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2197174A1 (de) | 2008-12-10 | 2010-06-16 | AVILA CHULIA, Antonio | Verfahren zur Verschlüsselung und Authentifizierung eines Datensignals |
Also Published As
Publication number | Publication date |
---|---|
EP2245305B1 (de) | 2012-03-21 |
WO2009092533A1 (de) | 2009-07-30 |
DE102008005436A1 (de) | 2009-08-06 |
ATE550549T1 (de) | 2012-04-15 |
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