EP1031727B1 - Kühlluftsystem für einen Kolbenkompressor - Google Patents

Kühlluftsystem für einen Kolbenkompressor Download PDF

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Publication number
EP1031727B1
EP1031727B1 EP00103181A EP00103181A EP1031727B1 EP 1031727 B1 EP1031727 B1 EP 1031727B1 EP 00103181 A EP00103181 A EP 00103181A EP 00103181 A EP00103181 A EP 00103181A EP 1031727 B1 EP1031727 B1 EP 1031727B1
Authority
EP
European Patent Office
Prior art keywords
cylinders
air
compressor according
cylinder
crankshaft
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.)
Expired - Lifetime
Application number
EP00103181A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1031727A2 (de
EP1031727A3 (de
Inventor
Gerd W. Cromm
Peter Lohrmann
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.)
Boge Kompressoren Otto Boge GmbH and Co KG
Original Assignee
Boge Kompressoren Otto Boge GmbH and Co KG
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 Boge Kompressoren Otto Boge GmbH and Co KG filed Critical Boge Kompressoren Otto Boge GmbH and Co KG
Publication of EP1031727A2 publication Critical patent/EP1031727A2/de
Publication of EP1031727A3 publication Critical patent/EP1031727A3/de
Application granted granted Critical
Publication of EP1031727B1 publication Critical patent/EP1031727B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0033—Pulsation and noise damping means with encapsulations

Definitions

  • the invention relates to a compressor with one or more cylinders in horizontal arrangement and with a crankshaft in a crankcase, wherein the compressor is arranged in a housing such that the crankshaft is vertically directed, that below the at least one cylinder coupled to the crankshaft drive unit is arranged and that a coupled to the drive unit or the crankshaft fan is provided.
  • a mobile compressor with two horizontal cylinders, upright crankshaft, fan arranged at the top and centrally arranged drive motor is known.
  • the cooling air can flow both upwards and downwards depending on the drive of the fan.
  • a particular disadvantage here is that, when the cooling air flows upwards, the air heated on the hot cylinders also acts on the drive motor.
  • the compressor according to the invention is characterized in that the crankshaft is directed vertically, that beneath the at least one cylinder a drive unit coupled to the crankshaft is arranged, that a fan coupled to the drive unit or the crankshaft is provided, and that the fan generates an airflow, which leads upwards on the drive unit and on the at least one cylinder.
  • the drive unit preferably an electric motor
  • the drive unit is arranged below the cylinders. This results in a significantly reduced space requirement. Also, the ventilation and cooling of both units can be done by a common air flow.
  • the vertical arrangement according to the invention - cylinder and drive unit one above the other - preferably has two cylinders in a boxer arrangement. But also possible versions with only one cylinder or with multiple cylinders in a different arrangement, such as in star or V arrangement. In all cases, the cylinders are provided transversely to the vertical crankshaft or drive shaft.
  • the drive unit is coupled to the crankshaft in the sense of a direct drive.
  • an indirect drive via a gearbox.
  • a fan for generating an air flow is arranged below the cylinder, and in particular below the drive unit.
  • the fan is preferably designed as a radial fan, wherein the air flowing axially in a region of the fan facing away from the cylinders flows out in the radial direction and sweeps up the sides of the drive unit and / or on the cylinders.
  • An upward flow of air for the cooling air and intake air is generated.
  • Drive unit and Cylinders are provided with cooling fins. The upward flowing air sweeps past it and causes effective cooling. Due to the compact design of modern electric motors, the cylinders are laterally over and are exactly in the cooling air flow.
  • a (first) suction filter is provided, preferably a filter mat. This is located near an inlet opening of the fan upstream inlet housing.
  • the cylinders are assigned a (second) air filter, in particular an air filter for several cylinders in common.
  • the air filter is provided above the cylinder, in particular in the middle. Air inlet openings of the air filter are in the range of the above-mentioned upward-flowing air.
  • the air filter has an intake regulator, so that in the short term the delivery rate for all connected cylinders interrupted and thus the operation of the compressor can be adapted to a lower compressed air demand.
  • a suitable intake air guide (the air to be compressed), the supply of warm air into the air filter can be avoided.
  • an intake air duct from an intake opening below the cylinder to the air filter arranged above the cylinder.
  • the intake air duct is a pipe with a corresponding cross section.
  • the suction opening has a sufficient distance from heat-radiating surfaces, in particular cooling ribs. The actual distance depends on the concrete temperature and flow conditions.
  • the upward air flow is advantageously guided along by Luftleitorgane the cylinders and the crankcase and / or on the drive unit. As a result, a faster heat dissipation can be achieved.
  • the compressor unit - cylinder, crankcase and drive unit - is mounted in a housing.
  • the shipsleitorgane are assigned to the housing, while the compressor unit is mounted oscillating in the housing.
  • the air to be compressed is supplied to the cylinders on their upper sides and taken from the undersides as compressed air.
  • Corresponding compressed air lines run in a plane below the cylinder and lie in the upward air flow.
  • the cylinders are interconnected by a common compressed air line. From one of the cylinders, this compressed air line continues and is guided around the crankcase in the same horizontal plane, in particular by 180 ° or more. In this case, the circulating compressed air line has a sufficient distance from the crankcase, so that the resulting heat of the lines is dissipated by the coolest possible rising air.
  • the arranged near the cylinders air filter advantageously has thermally insulated walls, in particular a insulating floor plate. Heating of the incoming air through the air filter housing is thereby avoided.
  • Drive unit and cylinder form a vibration control unit.
  • the resonance frequency is correspondingly low. This is additionally reduced by further measures. So the unit is stored relatively low.
  • support arms are provided whose free Tragarmenden are mounted on the housing side at bearing points at a height below a transition between the cylinders and the drive unit. On the side of the unit, the support arms engage approximately between the crankcase and the drive unit. The free arm ends rest on damping elements. These are in the amount of the center of gravity the oscillatory unit disposed on respective support beams or struts on the housing.
  • the unit is mounted in a star-shaped housing.
  • the crankcase is at the center of the bearing points.
  • the cylinders are assigned additional weights, advantageously - based on the rotation of the crankshaft - radially outside the cylinder.
  • additional weights advantageously - based on the rotation of the crankshaft - radially outside the cylinder.
  • a piston compressor 10 with two cylinders 11, 12 in a boxer arrangement is encapsulated together with an electric drive motor 13 in a housing 14, see Figs. 2 and 3.
  • the motor 13 is connected below a crankcase 15 with this.
  • the drive shaft, not shown, and the crankshaft, also not shown, of the compressor are directly coupled and thus directed vertically.
  • the crankcase 15 is also referred to as a cylinder console and accommodates an oil-free piston assembly having two pistons (also not shown).
  • the drive motor 13 is suspended.
  • radial (star-shaped) support arms 16 engage.
  • Free ends 17 of the support arms rest on damping elements 18. These may have a rubber pad or the like and are fixedly connected to parts of the housing. In this way, the unit of cylinders 11, 12 and motor 13 is capable of oscillating relative to the housing 14.
  • the free ends 17 are located approximately halfway up the drive motor 13. This results in a relatively low resonance frequency.
  • the resonance frequency is also reduced by additional weights 19.
  • Each weight is assigned to a cylinder and sits in front of the front side.
  • the additional weights 19 have the greatest possible distance from the center of gravity and increase the mass moment of inertia about the common center of gravity.
  • the connection between the cylinders 11, 12 and the additional weights 19 may be provided, for example, by extended cylinder studs or bolts arranged parallel thereto.
  • a radial fan 20 connects, which rotates with the drive shaft, not shown.
  • the air supply for the radial fan 20 is carried out from below axially via a nozzle 21. This is assigned to the housing 14, while the radial fan 20 is connected to the drive motor 13. Accordingly, nozzle 21 and radial fan 20 are vibrationally separated from each other.
  • the radially exiting from the radial fan 20 air is guided upward by a arranged in the housing spoiler device, in particular lower air baffles 22 and cools the drive motor 13, the cylinder 11, 12, the crankcase 15 and other heat-stressed parts.
  • the heated air finally exits the housing 14 in an upper area, see air outlet 23 in FIGS. 2 and 3.
  • FIG. 1 shows an exploded view of the air filter 24. Visible are a bottom plate 25, a frame 26 and an upper cover 27th
  • the air flows into the air filter via a downwardly directed intake pipe 28 on the bottom plate 25, see in particular Fig. 5.
  • the intake pipe 28 extends over more than 2/3 of the height of the crankcase 15. Thus, the heated air at the crankcase does not get into the Air filter 24.
  • the bottom plate 25 and optionally other parts of the air filter 24 are designed to be heat-insulating, so that even over a heat conduction no excessive heating of the intake air can take place.
  • the air filter 24 is provided with a controller 29 common to both cylinders 11, 12, see FIG. 5. In FIG. 1, only one recess in the frame 26 for the controller 29 can be seen. With the controller 29 a very short-term control of the compressed air delivery is possible. The more or less strong release of the intake air on the way to the cylinders 11, 12 is regulated.
  • the intake air is supplied via respective intake lines 31, 32 from the air filter 24 to the two cylinders 11, 12, see FIG. 2.
  • the air filter 24 is facing this purpose corresponding connection piece 33.
  • the generated compressed air is guided in a special way in the housing 14.
  • Both cylinders are interconnected by a compressed air line 34 extending below the same in the horizontal plane, see Fig. 1.
  • the compressed air line 34 begins at the cylinder 11 and continues beyond the cylinder 12 (more precisely below it) and is once passed around the crankcase , always in the same horizontal plane.
  • Fig. 1 of the cylinder 12 continued from part of the compressed air line is hidden and visible only with the parallel to the compressed air line 34 extending part (compressed air line 35). Its tail 36 is located approximately below the cylinder 12. The outlet of the compressed air from the housing is not shown.
  • the compressed air after passing out of the cylinder 12 is guided by about 360 ° around the crankcase in a horizontal plane and thus lying in the upward cooling air flow. If the compressed air line 34 connecting the cylinders 11, 12 is added, the result is even 540 °. Due to the distance of the compressed air lines 34, 35 to the crankcase and the motor 13 is carried by the latter no heating of the lines 34, 35th
  • the housing 14 with cover plate 37, large side walls 38, 39 and narrow side walls 40, 41 encapsulates the compressor 10 against sound emissions and dust.
  • An open bottom is covered by a large filter mat 42 and thus serves as an air inlet.
  • the filter mat 42 is held in lateral guide rails. In this way, a dust accumulation inside the housing is avoided.
  • other air filters can be used.
  • the outlet of the cooling air takes place in the region of the narrow side wall 40.
  • this near the cover plate 37 has an opening 43 which extends over the entire width of the side wall 40.
  • a horizontal wall 44 is arranged as the lower boundary of the opening 43 and the air outlet 23, which, starting from the side wall 40 over approximately 3 ⁇ 4 of the width of the side wall 39 extends and thus forms an exhaust duct 45 which has a downwardly directed passage 46 near the side wall 41.
  • the nozzle 21 is inserted into an intermediate bottom 49. This is parallel to the underside and thus forms a suction chamber 50 for the nozzle 21.
  • insulating material is applied to the intermediate bottom. This is hatched in Fig. 2 and not shown in detail otherwise.
  • the housing 14 is constructed as a frame construction, as shown in Fig. 4.
  • Outer upright struts 51 are on transverse struts 52 of a sub-frame 53.
  • On a narrow side wall 41, a control cabinet 54 is disposed above the intermediate floor 59.
  • a middle frame 55 is connected to corresponding transverse struts 56 with the upright struts 51.
  • the damping elements 18 are held. Accordingly, the compressor unit is mounted on the center frame 55 swingable.
  • the described compressor 10 can be varied in many ways.
  • other cylinder arrangements may be provided, for example 2x2 cylinders, each in a boxer arrangement, with an offset of 90 ° to one another, or a multi-stage arrangement in which the compressed air emerging from the one cylinder is sucked by the next cylinder and further compressed.
  • oil lubricated piston-cylinder assemblies can be installed.
  • the crankcase 15 may then be fully enclosed.
  • FIGS. 2, 3 and 5 To illustrate the air flows are shown in FIGS. 2, 3 and 5 arrows without numbers.
  • the housing or the housing walls form an outer guide for the cooling air flow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP00103181A 1999-02-26 2000-02-17 Kühlluftsystem für einen Kolbenkompressor Expired - Lifetime EP1031727B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19908308A DE19908308A1 (de) 1999-02-26 1999-02-26 Kompressoren
DE19908308 1999-02-26

Publications (3)

Publication Number Publication Date
EP1031727A2 EP1031727A2 (de) 2000-08-30
EP1031727A3 EP1031727A3 (de) 2001-03-21
EP1031727B1 true EP1031727B1 (de) 2006-05-31

Family

ID=7898928

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00103181A Expired - Lifetime EP1031727B1 (de) 1999-02-26 2000-02-17 Kühlluftsystem für einen Kolbenkompressor

Country Status (6)

Country Link
US (1) US6364632B1 (ja)
EP (1) EP1031727B1 (ja)
JP (1) JP3481898B2 (ja)
AT (1) ATE328198T1 (ja)
DE (2) DE19908308A1 (ja)
ES (1) ES2265307T3 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025084A1 (de) * 2006-05-30 2007-12-06 Schneider Druckluft Gmbh Kompressorvorrichtung

Families Citing this family (30)

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Publication number Priority date Publication date Assignee Title
DE10047087A1 (de) * 2000-09-22 2002-04-11 Boge Kompressoren Kolbenkompressor
DE10058923A1 (de) * 2000-11-28 2002-06-13 Knorr Bremse Systeme Anordnung eines trockenlaufenden Kompressors an einem Fahrzeug
JP2003254241A (ja) * 2002-02-27 2003-09-10 Tokico Ltd 空気圧縮機
US7029240B2 (en) * 2002-10-10 2006-04-18 Black & Decker Inc. Support structure for a portable air compressor
AU2003282467A1 (en) * 2002-10-10 2004-05-04 Black And Decker Inc. Wheeled portable air compressor
ITBO20030097A1 (it) * 2003-02-26 2004-08-27 F I A C S P A Gruppo compressore volumentrico alternativo bistadio ad alta pressione.
US20060177318A1 (en) * 2004-09-29 2006-08-10 Santa Ana Roland C Gas compressor
US20060171820A1 (en) * 2005-01-31 2006-08-03 Baron Michael P Cooling arrangement for a portable air compressor
DE102006010723A1 (de) * 2006-03-08 2007-09-13 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Kompressoranordnung
DE102007010139B4 (de) * 2007-02-28 2021-02-11 Stiebel Eltron Gmbh & Co. Kg Wärmepumpenvorrichtung
DE102007019126B4 (de) 2007-04-23 2009-07-09 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Schallgekapselte Kompressoranordnung
US8821131B2 (en) * 2008-02-05 2014-09-02 Hitachi Koki Co., Ltd. Air compressor
US9115911B2 (en) * 2008-07-31 2015-08-25 Haul-All Equipment Ltd. Direct-fired ductable heater
CN101776060A (zh) * 2010-01-20 2010-07-14 常州亿晶光电科技有限公司 太阳能电池自动焊接机真空泵冷却装置
US9856866B2 (en) 2011-01-28 2018-01-02 Wabtec Holding Corp. Oil-free air compressor for rail vehicles
US8899378B2 (en) 2011-09-13 2014-12-02 Black & Decker Inc. Compressor intake muffler and filter
AU2012216659B2 (en) 2011-09-13 2016-03-24 Black & Decker Inc Air ducting shroud for cooling an air compressor pump and motor
JP5547304B2 (ja) * 2012-02-27 2014-07-09 シナノケンシ株式会社 圧縮機及び真空機
JP5622777B2 (ja) * 2012-03-23 2014-11-12 シナノケンシ株式会社 圧縮機又は真空機
DE102014113598A1 (de) * 2014-09-19 2016-03-24 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Mehrstufiger Kolbenkompressor mit einer äußeren Kühlluftführung
US11111913B2 (en) 2015-10-07 2021-09-07 Black & Decker Inc. Oil lubricated compressor
FR3042549A1 (fr) * 2015-10-20 2017-04-21 Willy Delbarba Caisson de production d'air comprime "sans huile" pour application ferroviaire
US11396867B2 (en) 2017-12-01 2022-07-26 Rencool Pty Ltd DC voltage air conditioning compressor drive unit
DE102018117756B4 (de) 2018-07-23 2021-01-28 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Antriebsanordnung für eine pneumatische Verdichtereinheit zur Erzeugung von Druckluft bei einem Fahrzeug
DE102018124757B4 (de) 2018-10-08 2024-01-11 Nabtesco Automotive Corporation Elektrisch angetriebene Verdichteranordnung
JP7419024B2 (ja) * 2019-10-31 2024-01-22 株式会社マキタ エアコンプレッサ
TWI752554B (zh) * 2020-07-15 2022-01-11 周文三 打氣機裝置
CN112648165B (zh) * 2020-12-22 2022-08-30 上海宇盛压缩机械有限公司 一种双缸式压缩机
CN113464400B (zh) * 2021-05-12 2023-01-03 广东鸽子医疗器械有限公司 一种自清洁型压缩机
CN113446195B (zh) * 2021-07-27 2022-11-18 浙江鹏佑机电有限公司 一种耐用空压机

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025084A1 (de) * 2006-05-30 2007-12-06 Schneider Druckluft Gmbh Kompressorvorrichtung

Also Published As

Publication number Publication date
DE50012837D1 (de) 2006-07-06
EP1031727A2 (de) 2000-08-30
EP1031727A3 (de) 2001-03-21
US6364632B1 (en) 2002-04-02
JP3481898B2 (ja) 2003-12-22
ES2265307T3 (es) 2007-02-16
DE19908308A1 (de) 2000-08-31
JP2000337258A (ja) 2000-12-05
ATE328198T1 (de) 2006-06-15

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