EP1922485A1 - Mehrzylindriger trockenlaufender kolbenverdichter mit einem kühlluftstrom - Google Patents
Mehrzylindriger trockenlaufender kolbenverdichter mit einem kühlluftstromInfo
- Publication number
- EP1922485A1 EP1922485A1 EP06791653A EP06791653A EP1922485A1 EP 1922485 A1 EP1922485 A1 EP 1922485A1 EP 06791653 A EP06791653 A EP 06791653A EP 06791653 A EP06791653 A EP 06791653A EP 1922485 A1 EP1922485 A1 EP 1922485A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- cooling air
- compressor according
- piston compressor
- crankcase
- 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 33
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000005086 pumping Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 241000446313 Lamella Species 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000003570 air Substances 0.000 description 35
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F04B25/00—Multi-stage pumps
-
- 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
- F04B39/066—Cooling by ventilation
Definitions
- the present invention relates to a multi-cylinder dry-running piston compressor for generating compressed air, which has a crankcase for rotatably supporting a crankshaft, on which a number of pistons with each associated cylinder corresponding number of connecting rods are mounted to rotate in opposite directions, wherein means for generating the inside the crankcase passing cooling air flow due to a triggered by the movement cycle of the piston pumping effect are provided.
- Such a reciprocating compressor is used for example within a compressed air procurement system of a commercial vehicle or a rail vehicle.
- the compressed air generated by the piston compressor is used in addition to the operation of the brake system for the operation of the air suspension system.
- multi-stage reciprocating compressors are used, which are designed according to multi-cylinder. With such multi-cylinder reciprocating compressors, the required compressed air requirement can be generated within short time intervals.
- Dry-running reciprocating compressors are known in the general state of the art in which the intake air required for compression is guided through the crankcase, thereby reducing the storage temperatures.
- this results in unfavorable heating of the intake air, resulting in an increase in the compression end temperatures, which in turn increases the overall temperature level of the compressor.
- This technical solution proves to be unsuitable, especially for thermally highly stressed single-stage compressors.
- DE 101 38 070 A1 discloses a generic multicylinder dry-running reciprocating compressor, which is designed here in the manner of a two-stage compressor and thus has a low-pressure stage with a large piston diameter and a downstream high-pressure stage with a small piston diameter.
- a pumping effect is produced by means of corresponding non-return valves as a result of the movement cycle of the pistons.
- the pumping effect is used to generate a cooling air flow passing through the crankcase.
- the cooling air flow is used primarily for jacket cooling of the cylinder but also for ventilation of the crankcase.
- a disadvantage of this design is that the ventilation is not completely integrated in the reciprocating compressor.
- the invention includes the technical teaching that works in support of the pumping effect of each piston in a separate chamber, which are generated by arranged in the crankcase and the crankshaft enclosing release agent, so that different pressure conditions arise in the chambers.
- the advantage of the solution according to the invention lies in the fact that, for example, in piston compressors with two counter-rotating pistons of the same diameter by the movement cycle, a pumping effect for generating a cooling air flow is feasible.
- the release agent which generates the chambers does not need to separate both chambers from one another in an absolutely pressure-tight manner. Slight overflow losses are quite acceptable.
- an environmentally friendly dry-running reciprocating compressor with a high capacity can be produced whose temperature level remains subcritical.
- the multicylinder dry-running piston compressor according to the invention is also suitable for direct flanging laterally of a diesel engine of a commercial vehicle.
- the existing here very limited installation space proves to be sufficient, since because of the solution according to the invention a quite garure
- a sealed intermediate bearing for the crankshaft inserted into the crankcase can be provided.
- the intermediate bearing ensures not only an additional bearing for the crankshaft but also a sufficiently tight separation between the chambers of the crankcase. Besides, it is also possible to insert one into the crankcase instead of the
- a radial sealing element can also be arranged stationary in the crankshaft and seal dynamically with respect to the crankcase.
- Inlet valve for the cooling air in the region of the intake manifold arranged on the cylinder head Because at this point filtered from the environment originating cooling air for the measure according to the invention can be branched off.
- a likewise designed in the manner of a check valve outlet valve for the cooling air is arranged on the underside of the crankcase. Because at this point, the used, heated cooling air can be ejected in a suitable manner to the environment.
- Both inlet valve and exhaust valves can be designed as sturdy lamella valves.
- the cooling air sucked in by the inlet valve be collected in a chamber of the valve plate and then pass into the crankcase via channels emerging therefrom.
- the channels are preferably formed as external pipelines to prevent heating of the cooling air when passing through the cylinder area.
- a rotational movement produced by a drive unit serves to drive a crankshaft 2 rotatably mounted in a crankcase 1.
- connecting rods 3a and 3b are mounted adjacent to each other via rolling bearings 4a and 4b arranged therebetween.
- a piston 5a and 5b is arranged at each, the rolling bearing 4a and 4b opposite end of the associated connecting rod 3a and 3b.
- Both pistons 5a, 5b run in respective associated cylinders 6a and 6b and move in opposite directions corresponding to the crankshaft 2 crankshaft.
- Both pistons 5a and 5b have the same diameter.
- the sucked by the piston 5a and 5b filtered ambient air passes via respectively associated intake 7a and 7b in the interior of the compressor.
- the intake ports 7a and 7b are arranged on a cylinder head 8 of the reciprocating compressor.
- a valve plate 9 placed between the cylinder head 8 and the cylinders 6a and 6b has the check valve arrangements required to compress the ambient air.
- the reciprocating compressor has means for generating a cooling air flow passing through the interior of the crankcase 1.
- the cooling air flow is generated by the movement cycle of the pistons 5a and 5b.
- each piston 5a and 5b operates in a separate crankcase-side chamber 10a and 10b.
- the chambers 10a and 10b are formed by a sealed intermediate bearing 11 inserted into the crankcase 1 as a separating means.
- Each chamber 10 a and 10 b is associated with an inlet valve 12 a and 12 b for the cooling air in the region of the intake manifold 7 a and 7 b.
- the intake valves 12a and 12b are designed as Lammellenventile. From here, the sucked cooling air passes into a chamber 13a or 13b of the valve plate 9 and from there via external channels 14a and 14b in the crankcase 1, ie in the respective associated chambers 10a and 10b. The heated cooling air leaves the chambers 10a and 10b via respectively associated exhaust valves 15a and 15b.
- the exhaust valves 15a and 15b are also designed as Lammellenventile.
- the piston compressor as a multistage piston compressor with at least one low-pressure stage and at least one subsequent high-pressure stage.
- the technical solution according to the invention for improving the pumping effect can be used everywhere where opposing moving straight and / or odd-numbered pistons by number, stroke or diameter would thwart the generation of a sufficiently large internal cooling air flow.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005040495A DE102005040495B3 (de) | 2005-08-26 | 2005-08-26 | Mehrzylindriger trockenlaufender Kolbenverdichter mit einem Kühlluftstrom |
| PCT/EP2006/008340 WO2007022988A1 (de) | 2005-08-26 | 2006-08-25 | Mehrzylindriger trockenlaufender kolbenverdichter mit einem kühlluftstrom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1922485A1 true EP1922485A1 (de) | 2008-05-21 |
| EP1922485B1 EP1922485B1 (de) | 2016-10-12 |
Family
ID=36776464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06791653.6A Not-in-force EP1922485B1 (de) | 2005-08-26 | 2006-08-25 | Mehrzylindriger trockenlaufender kolbenverdichter mit einem kühlluftstrom |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8317488B2 (de) |
| EP (1) | EP1922485B1 (de) |
| JP (1) | JP5027130B2 (de) |
| CN (1) | CN101253327B (de) |
| DE (1) | DE102005040495B3 (de) |
| WO (1) | WO2007022988A1 (de) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006012174A1 (de) * | 2006-03-16 | 2007-09-20 | Pari GmbH Spezialisten für effektive Inhalation | Inhalationstherapiegerätekompressor |
| DE102007042318B4 (de) * | 2007-09-06 | 2017-11-30 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Kompakter trockenlaufender Kolbenverdichter |
| IT1399335B1 (it) * | 2009-09-02 | 2013-04-16 | Dorin Mario Spa | Compressore per impianti di refrigerazione e/o condizionamento. |
| DE102010024346A1 (de) * | 2010-06-18 | 2011-12-22 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Luftgekühlter Kolbenkompressor mit spezieller Kühlluftführung |
| US9856866B2 (en) * | 2011-01-28 | 2018-01-02 | Wabtec Holding Corp. | Oil-free air compressor for rail vehicles |
| DE102012020894A1 (de) * | 2011-10-25 | 2013-04-25 | Rotorcomp Verdichter Gmbh | Triebwerkslageranordnung, insbesondere für Trockenlauf-Verdichter |
| US20170168192A1 (en) * | 2015-12-14 | 2017-06-15 | Baker Hughes Incorporated | Scintillation materials optimization in spectrometric detectors for downhole nuclear logging with pulsed neutron generator based tools |
| CN106150971A (zh) * | 2016-07-22 | 2016-11-23 | 瑞立集团瑞安汽车零部件有限公司 | 一种两级压缩车用活塞式无油空压机 |
| CN106988988A (zh) * | 2017-05-20 | 2017-07-28 | 上乘精密科技(苏州)有限公司 | 一种曲轴空气泵 |
| CN107575359A (zh) * | 2017-09-19 | 2018-01-12 | 瑞立集团瑞安汽车零部件有限公司 | 车用卧式活塞式两级空气压缩机 |
| JP7058523B2 (ja) * | 2018-03-07 | 2022-04-22 | アネスト岩田株式会社 | 往復動式圧縮機 |
| US11333140B2 (en) | 2019-06-11 | 2022-05-17 | Caterpillar Inc. | Cooling block for multi-cylinder air compressor |
| CN110242534B (zh) * | 2019-07-08 | 2024-01-26 | 耐力股份有限公司 | 一种新能源有油二级活塞式空压机 |
| CN110219793B (zh) * | 2019-07-15 | 2024-01-26 | 耐力股份有限公司 | 一种二级压缩的无油活塞式压缩机 |
| CN112392695B (zh) * | 2020-11-30 | 2025-01-21 | 固耐重工(苏州)有限公司 | 一种不锈钢双列缸体焊接结构 |
| CN114738231A (zh) * | 2022-05-13 | 2022-07-12 | 耐力股份有限公司 | 一种新能源全无油二级活塞式空压机 |
| EP4350144B1 (de) * | 2022-10-06 | 2025-09-17 | Volvo Construction Equipment AB | Hydraulische kolbenpumpe und verfahren zur beeinflussung des klangverlaufs der kolbenpumpe |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE306576C (de) | ||||
| FR1108479A (fr) | 1954-07-09 | 1956-01-13 | Perfectionnements apportés à des compresseurs à transvasement | |
| FR1463769A (fr) | 1963-05-29 | 1966-07-22 | Compresseur à piston et ses procédé et dispositif de refroidissement et ses dispositifs de montage | |
| DE1403963A1 (de) | 1963-07-02 | 1968-11-21 | Kurt Braetsch | Kompressor mit wenigstens drei Stufen |
| US3338509A (en) * | 1965-07-07 | 1967-08-29 | Borg Warner | Compressors |
| JPH03111883U (de) * | 1990-02-27 | 1991-11-15 | ||
| CN2179916Y (zh) * | 1993-11-18 | 1994-10-19 | 宝山钢铁(集团)公司 | 活塞式压缩机 |
| US6183211B1 (en) * | 1999-02-09 | 2001-02-06 | Devilbiss Air Power Company | Two stage oil free air compressor |
| JP2000320458A (ja) * | 1999-05-12 | 2000-11-21 | Kofu Meidensha:Kk | 圧縮機構 |
| IT1311171B1 (it) * | 1999-12-21 | 2002-03-04 | Automac Sas Di Bigi Ing Mauriz | Motore termico alternativo dotato di equilibratura e precompressione |
| US6599103B2 (en) * | 2000-12-14 | 2003-07-29 | Gardner Denver | Locomotive air compressor with outboard support bearing |
| DE10138070C2 (de) * | 2001-08-03 | 2003-05-22 | Knorr Bremse Systeme | Kolbenkompressor mit einem Kühlluftstrom |
| US6945201B2 (en) * | 2004-01-15 | 2005-09-20 | Daimlerchrysler Corporation | Positive crankcase ventilation in an engine having a cyclically varying crankcase volume |
| US20090155106A1 (en) * | 2007-12-12 | 2009-06-18 | Caterpillar Inc. | Extended compressor operation for auxiliary air supply |
-
2005
- 2005-08-26 DE DE102005040495A patent/DE102005040495B3/de not_active Expired - Fee Related
-
2006
- 2006-08-25 JP JP2008527397A patent/JP5027130B2/ja not_active Expired - Fee Related
- 2006-08-25 CN CN2006800312384A patent/CN101253327B/zh not_active Expired - Fee Related
- 2006-08-25 WO PCT/EP2006/008340 patent/WO2007022988A1/de not_active Ceased
- 2006-08-25 US US12/064,870 patent/US8317488B2/en not_active Expired - Fee Related
- 2006-08-25 EP EP06791653.6A patent/EP1922485B1/de not_active Not-in-force
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007022988A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101253327A (zh) | 2008-08-27 |
| WO2007022988A1 (de) | 2007-03-01 |
| US8317488B2 (en) | 2012-11-27 |
| HK1123337A1 (zh) | 2009-06-12 |
| EP1922485B1 (de) | 2016-10-12 |
| CN101253327B (zh) | 2010-07-28 |
| DE102005040495B3 (de) | 2006-08-24 |
| US20090016908A1 (en) | 2009-01-15 |
| JP2009506249A (ja) | 2009-02-12 |
| JP5027130B2 (ja) | 2012-09-19 |
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