EP2276929B1 - Ventilplatte für einen kompressor und verfahren zur kühlung komprimierter luft in einer ventilplatte eines kompressors - Google Patents

Ventilplatte für einen kompressor und verfahren zur kühlung komprimierter luft in einer ventilplatte eines kompressors Download PDF

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Publication number
EP2276929B1
EP2276929B1 EP09731035.3A EP09731035A EP2276929B1 EP 2276929 B1 EP2276929 B1 EP 2276929B1 EP 09731035 A EP09731035 A EP 09731035A EP 2276929 B1 EP2276929 B1 EP 2276929B1
Authority
EP
European Patent Office
Prior art keywords
valve plate
air
compressor
coolant
air outlet
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.)
Active
Application number
EP09731035.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2276929A2 (de
Inventor
Jean-Louis Mezza
Yvan Baptiste
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
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
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Filing date
Publication date
Application filed by Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of EP2276929A2 publication Critical patent/EP2276929A2/de
Application granted granted Critical
Publication of EP2276929B1 publication Critical patent/EP2276929B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1066—Valve plates
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123—Fluid connections

Definitions

  • the invention relates to a valve plate with a coolant channel for a compressor for compressed air generation according to the preamble of claim 1.
  • the invention further relates to a method for cooling compressed air in a compressor with such a valve plate.
  • Modern commercial vehicles which are used in rail or road traffic, are equipped with many compressed air consuming subsystems. These subsystems include, for example, a service brake operated by compressed air and air suspension.
  • the supply of compressed air consumers with compressed air is realized by means of a compressed air supply device comprising a compressor. Ambient air is drawn in by the compressor, compressed and purified in other components of the compressed air supply device prior to use in the consumers of foreign matter such as oil and water.
  • Compressing the air in the compressor greatly heats the air. This heating increases with increasing delivery pressure and increasing number of revolutions of the compressor. This is in terms of further treatment of Compressed air, especially air drying, disadvantageous.
  • the air is deprived of the humidity in an air filter cartridge downstream of the compressor.
  • This air filter cartridge contains a desiccant that can extract moisture from the air only up to 80 ° C. Therefore, a lower maximum allowable temperature of 60 ° C is usually specified to allow effective drying.
  • the compressed air at the outlet opening of the piston chamber reaches temperatures of up to 320 ° C. At the outlet of the compressor itself, the maximum temperature may be 220 ° C. This results in the need to cool the air between the compressor and the air filter cartridge.
  • a pressure line of several meters in length is used in the prior art, wherein the heated compressed air can cool during flow through the pressure line from the compressor to the air filter cartridge without further cooling measures.
  • the disadvantage here is the pressure loss caused by the long line and the structural complexity of the pressure line itself.
  • a so-called supercooling plate is inserted in the cylinder head of the compressor above the valve plate, which is flowed through by a coolant and acts as a heat exchanger. Through them it is possible to reduce the outlet temperature of the compressed air to 140 to 150 ° C at the compressor outlet and the subsequent pressure line to shorten by 5 to 30%.
  • An example of such a supercooling plate is in the DE 195 35 079 C2 to find.
  • the disadvantage here is in particular the complex construction resulting from the integration of the supercooling plate as a separate component in the cylinder head of the compressor, as this additional seals are necessary.
  • the US 2007/0081910 A1 describes a cooling system with a compressor comprising a suction valve, wherein in the bottom of Ansaugventilsitzes a spiral groove is provided to achieve a sealing effect on the principle of a labyrinth seal.
  • the US 3,823,735 A describes a special design of a check valve that can be used as an air inlet or outlet valve of a compressor.
  • the US 2004/0086406 A1 describes a cylinder head of a compressor having a plurality of chambers, which are successively flowed through by the coolant conveyed by the compressor in order to damp pulsations.
  • the DE 866 712 A describes a valve plate wherein the air to be compressed is used as the coolant. Coolant inlet and coolant outlet are in DE 866 712 A therefore equal to the air inlet and outlet.
  • the invention has for its object to provide a valve plate without a supercooling plate at least equal cooling performance compared to a combination of a conventional valve plate and a supercooling plate.
  • the coolant channel runs at least partially between the piston chamber and an air outlet valve arranged in the valve plate.
  • the entire valve plate is evenly cooled, in particular in the region of the air outlet valve, the temperature of the valve plate can be lowered, which consequently increases the achievable cooling capacity.
  • the heated compressed air is therefore already cooled from reaching the air outlet valve of the present in the coolant passage coolant.
  • the coolant channel extends at least partially in front of the air outlet valve.
  • the coolant channel runs meandering in the bottom of the valve plate. Due to the meandering course of the coolant channel in the bottom of the valve plate, the contact surface of the coolant channel increases with the valve plate, whereby a higher cooling capacity can be provided.
  • valve plate builds on the generic valve plate in that the coolant channel, viewed from a piston chamber of the compressor, extends at least partially between the piston chamber and an air outlet valve arranged in the valve plate.
  • an air duct runs meander-shaped in the body of the valve plate.
  • the meandering course of the air duct increases the achievable cooling capacity, since the contact surface of the medium to be cooled is increased with the cooled valve plate.
  • two air outlet valves are arranged in the body of the valve plate.
  • the simultaneous use of multiple air outlet valves reduces throttling losses caused by a limited valve cross-section.
  • the heat development is reduced at the air outlet valves.
  • the invention further relates to a compressor with a valve plate according to the invention.
  • the generic method is further developed in that the coolant is viewed from a piston chamber of a compressor at least partially passed between the piston chamber and an arranged in the valve plate air outlet along.
  • the advantages and particularities of the valve plate according to the invention are also implemented in the context of a method. This also applies to the following particularly preferred embodiments of the method according to the invention.
  • the coolant is passed meandering in a bottom of the valve plate.
  • the compressed air is conducted meandering in a body of the valve plate.
  • the compressed air flows through two air outlet valves in a body of the valve plate.
  • FIG. 1 shows an external view of a compressor with cut open piston housing.
  • the illustrated compressor 14 comprises a cylinder head 16 and a piston housing 18, wherein between the piston housing 18 and the cylinder head 16, a valve plate 10 is arranged.
  • the compressor is driven via a shaft 26.
  • the piston housing 18 is cut in the vicinity of the valve plate 10, so that a piston chamber 40 is visible. Inside the piston chamber 40, a piston, which is not visible in the illustration, moves up and down.
  • FIG. 2 shows an exploded view of a valve plate according to the invention.
  • the illustrated valve plate 10 comprises from bottom to top a bottom 28, a Body 30, a seal 32 and a lid 34.
  • the lid 34 and the body 30 are sealed together by the seal 32, while the body 30 and the bottom 28 are sealed together by soldering or gluing.
  • soldering or gluing the attachment of a seal between the bottom 28 and the body 30 is also conceivable.
  • a coolant channel 20 is inserted, which runs meandering within the bottom 28.
  • the coolant channel 20 is delimited by the body 30.
  • an air inlet valve 36 in the central region of the bottom 28 is visible.
  • two air outlet valves 22, 24 are arranged, via which the compressed air flows into the valve plate 10.
  • the coolant channel 20 covers, viewed from the bottom 28 to the body 30 from a portion of the air outlet valves 22, 24.
  • an air outlet 38 in the lid 34 of the valve plate 10 the compressed air, the valve plate 10 finally leave again.
  • FIG. 3 shows a plan view of a bottom of a valve plate according to the invention.
  • the illustrated bottom 28 with the meandering coolant channel 20 has a plurality of holes through which air can pass through the bottom 28.
  • an air inlet 46 is arranged, which belongs to the air inlet valve 36, not shown here.
  • the coolant channel 20 flows around two piston chamber air outlets 48, which belong to the air outlet valves 22, 24, not shown here.
  • the arrows drawn in the coolant channel 20 represent an exemplary flow direction of the coolant within the bottom 28
  • FIG. 4 shows a plan view of a body of a valve plate according to the invention.
  • the illustrated body 30 has an air guide 12 in which the air flowing in through the piston chamber air outlets 48 is directed to an air outlet 38.
  • the Kolbenraum povertyauslässe 48 are, as well as the air inlet 46, holes through the body 30.
  • the air outlet 38 is no hole in the body 30 but as a hole in the cover 34, not shown here, the valve plate available.
  • the air guide 12 serves to guide the compressed air from the Kolbenraumluftauslässen 48 to the air outlet 38.
  • a coolant inlet 42 and a coolant outlet 44 are shown, through which the coolant through the in FIG. 3 shown coolant channel 20 can circulate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
EP09731035.3A 2008-04-11 2009-03-25 Ventilplatte für einen kompressor und verfahren zur kühlung komprimierter luft in einer ventilplatte eines kompressors Active EP2276929B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008018467.5A DE102008018467B4 (de) 2008-04-11 2008-04-11 Ventilplatte für einen Kompressor und Verfahren zur Kühlung komprimierter Luft in einer Ventilplatte eines Kompressors
PCT/EP2009/002167 WO2009124659A2 (de) 2008-04-11 2009-03-25 Ventilplatte für einen kompressor und verfahren zur kühlung komprimierter luft in einer ventilplatte eines kompressors

Publications (2)

Publication Number Publication Date
EP2276929A2 EP2276929A2 (de) 2011-01-26
EP2276929B1 true EP2276929B1 (de) 2018-10-17

Family

ID=41060592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09731035.3A Active EP2276929B1 (de) 2008-04-11 2009-03-25 Ventilplatte für einen kompressor und verfahren zur kühlung komprimierter luft in einer ventilplatte eines kompressors

Country Status (7)

Country Link
US (1) US8337177B2 (pt)
EP (1) EP2276929B1 (pt)
JP (1) JP5679962B2 (pt)
CN (1) CN101952591B (pt)
BR (1) BRPI0909010B1 (pt)
DE (1) DE102008018467B4 (pt)
WO (1) WO2009124659A2 (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT509081B1 (de) 2010-04-08 2011-06-15 Hoerbiger Kompressortech Hold Hohle ventilplatte
CN102233508A (zh) * 2010-05-04 2011-11-09 湖北兴升科技发展有限公司 水冷式空压机阀板的加工方法
CN102562534A (zh) * 2012-01-16 2012-07-11 张家港市金腾化工机械制造有限公司 冷冻机压缩机的冷却系统
CN102562533A (zh) * 2012-01-16 2012-07-11 张家港市金腾化工机械制造有限公司 冷冻机压缩机的冷却装置
AT512407B1 (de) * 2012-09-14 2013-08-15 Hoerbiger Kompressortech Hold Hohle Ventilplatte
CN103256207B (zh) * 2013-04-19 2016-03-09 广州万宝集团压缩机有限公司 一种活塞式制冷压缩机及其汽缸头组件和阀板
CN103244384B (zh) * 2013-04-19 2015-10-07 广州万宝集团压缩机有限公司 一种活塞式制冷压缩机及其汽缸头组件和隔热板
DE102013007179A1 (de) * 2013-04-25 2014-10-30 Man Truck & Bus Ag Kraftfahrzeug-Druckluftsystem
US9657733B2 (en) * 2013-12-16 2017-05-23 Wabco Compressor Manufacturing Co. Compressor for a vehicle air supply system
US20150219083A1 (en) * 2014-02-06 2015-08-06 Bendix Commercial Vehicle Systems Llc Vehicle Air Compressor Apparatus for a Heavy Vehicle Air Braking System
DE102014111527B4 (de) * 2014-08-13 2018-05-09 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Zylinderkopf für einen Kompressor mit besonders effizienter Luftkühlung
US20160053891A1 (en) * 2014-08-19 2016-02-25 Bendix Commercial Vehicle Systems Llc Compressor head and gasket for same
US10125756B2 (en) 2014-12-22 2018-11-13 Bendix Commercial Vehicle Systems Llc System and method for reducing at least one of airflow turbulence and pressure fluctuation proximate a valve
DE102015225069B4 (de) * 2015-12-14 2017-11-30 Voith Patent Gmbh Zylinderkopf für mehrstufigen Kolbenverdichter
US10480499B2 (en) 2016-02-01 2019-11-19 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Crankcase assembly for a reciprocating machine
DE102017116870B3 (de) * 2017-07-21 2019-01-24 Voith Patent Gmbh Hubkolbenmaschine mit Kühleinrichtung
DE102019118653A1 (de) * 2019-07-10 2021-01-14 Wabco Europe Bvba Kolbenkompressor einer Druckluftversorgungsanlage in Kraftfahrzeugen
EP4105483A1 (en) * 2020-02-14 2022-12-21 Nidec Global Appliance Brasil Ltda. Alternative compressor head arrangement

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Also Published As

Publication number Publication date
US20110070101A1 (en) 2011-03-24
EP2276929A2 (de) 2011-01-26
CN101952591B (zh) 2013-06-12
JP2011516782A (ja) 2011-05-26
BRPI0909010B1 (pt) 2019-11-12
DE102008018467A1 (de) 2009-10-15
CN101952591A (zh) 2011-01-19
US8337177B2 (en) 2012-12-25
DE102008018467B4 (de) 2021-11-11
BRPI0909010A2 (pt) 2015-09-22
WO2009124659A3 (de) 2009-12-03
WO2009124659A2 (de) 2009-10-15
JP5679962B2 (ja) 2015-03-04

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