WO2017102472A1 - Culasse pour compresseur à pistons multi-étagé - Google Patents

Culasse pour compresseur à pistons multi-étagé Download PDF

Info

Publication number
WO2017102472A1
WO2017102472A1 PCT/EP2016/079981 EP2016079981W WO2017102472A1 WO 2017102472 A1 WO2017102472 A1 WO 2017102472A1 EP 2016079981 W EP2016079981 W EP 2016079981W WO 2017102472 A1 WO2017102472 A1 WO 2017102472A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder head
valve
compressor
stage
working space
Prior art date
Application number
PCT/EP2016/079981
Other languages
German (de)
English (en)
Inventor
Herr Jörg NICKL
Original Assignee
Voith Patent 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 Voith Patent Gmbh filed Critical Voith Patent Gmbh
Priority to CN201690001408.3U priority Critical patent/CN208686535U/zh
Publication of WO2017102472A1 publication Critical patent/WO2017102472A1/fr

Links

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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/125—Cylinder heads
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/03—Stopping, starting, unloading or idling control by means of valves
    • F04B49/035—Bypassing

Definitions

  • the invention relates to a cylinder head for a multi-stage reciprocating compressor, which is suitable for compressing a compressible working medium, in particular air, for use in a compressed air supply device in a motor vehicle.
  • Piston compressor or compressor or air compressor serve the compression of gases, eg. As air, which is used as a working medium for operating various units.
  • Compressors are used, inter alia, in motor vehicles. In operation, such compressors are used, for example, so that a compressed air tank is filled with compressed air until a predetermined pressure level is reached.
  • a multi-stage reciprocating compressor essentially consists of a base body, in which reciprocating pistons are arranged, and a cylinder head with valves and cooling channels.
  • ambient air is sucked in through an inlet channel, a suction chamber and valves in the working space of the first compressor stage, compressed and then passed through an intermediate channel in a further or subsequent working space of a compressor stage and further compressed there.
  • the compressed air is then passed through an air treatment unit or control unit in the compressed air tank.
  • the drive of the compressor is performed by the drive motor of the vehicle.
  • no switchable coupling is provided between the drive motor and the compressor so that the compressor is constantly driven, which represents an energy loss or an increased fuel consumption in non-delivery mode.
  • an idle valve is provided, which is arranged between the suction chamber and working space of the first compressor stage.
  • a bypass is opened so that air conveyed by the compressor flows back into the suction chamber.
  • the compressor itself then runs in idling mode.
  • One of the objects of the invention is to propose a cylinder head for a multi-stage reciprocating compressor which further improves the idling characteristics of the reciprocating compressor. According to the invention this object is achieved with a cylinder head according to claim 1 and a multi-stage piston compressor according to claim 1 1. Further advantageous embodiments and preferred variants of the solution are described in the subclaims dependent thereon.
  • a cylinder head for a multistage piston compressor for compressing a compressible working medium comprising a cylinder head upper part, a cylinder head lower part and a valve seat plate.
  • a valve seat plate of the inlet and outlet valves are arranged, via which a working space of a first compressor stage and a working space of a subsequent compressor stage can be filled or emptied.
  • Portions of the cylinder head form a suction chamber which has a working medium inlet.
  • a bypass opening in the valve seat plate is provided, via which the working space of the first compressor stage can be connected to the suction chamber, wherein an idle valve is provided in the connection.
  • a second bypass opening is provided in the valve seat plate, via which the working space of the following Coming compressor stage is connected to the suction chamber.
  • the cylinder head is intended in particular for a reciprocating compressor, as used in motor vehicles.
  • the suction chamber is connected to the ambient air or the vehicle filter air via the working medium inlet.
  • the idle valves When the idle valves are open, the displacements of the compressor stages are connected to the environment via the bypass openings and the suction chamber. This ensures that the piston compressor in idle mode, a defined reduction in power, even if the pressure line remains under pressure.
  • a single idle valve can be assigned to both bypass openings.
  • each bypass opening is assigned an idle valve.
  • the bypass openings could also be switched, opened and closed independently of each other.
  • the idle valves can be positioned in the cylinder head and the control of the valves can be pneumatic. If the idle valves integrated in the cylinder head, the idle valves may include a closing body which is movable against a sealing surface which surrounds the bypass openings.
  • the idle valves may comprise a spring which hold the closing body in a closed position, wherein the spring of the individual idling valves may be designed differently. As a result, for example, with simultaneous control, a different switching characteristic can be achieved.
  • a discharge channel may be provided in the valve seat plate, which connects the second bypass opening with the working space of the subsequent compressor stage.
  • the idle valves can be acted upon via a control pressure line with compressed air, so that the closing body of the idle valves against the spring force to be moved in an open position.
  • each idle valve via a separate control pressure line can be acted upon with compressed air, so that the closing body can be moved independently against the spring force in an open position.
  • the cylinder head described can be mounted on a multi-stage reciprocating compressor for compressing compressible media. So it is possible to convert existing reciprocating compressors. For this purpose, only the old cylinder head would have to be replaced with the cylinder head according to the invention.
  • FIG 1 is the circuit diagram of the improved idle circuit
  • Figure 2 shows a reciprocating compressor in the operating mode
  • FIG. 3 is an idle valve in detail
  • Figure 1 shows the circuit diagram of the improved idle circuit according to the invention for a multi-stage compressor, here shown a reciprocating compressor with two compressor stages, each having a working space 18, 19.
  • the working space 18 can be filled with working medium, in particular ambient air.
  • the intermediate channel 21 between the displacements 18, 19 is connected once to the working space 18 via the outlet valve (not shown) and to the second-stage working space 19 on the other side via an inlet valve (not shown).
  • the intake and exhaust valves, not shown here, are known to those skilled in the art.
  • a cooler with a cooling channel 10 is provided in the intermediate channel 21 so that compressed air at a lower temperature can be supplied to the working space of the subsequent stage.
  • the compressed air leaving the subsequent stage is also called APU via an air treatment device with a control device, which is supplied to a compressed air tank.
  • Each compressor stage is assigned an idle valve 2a, b.
  • the control of the idle valves for example, as shown here, via the control unit of the APU, by means of which a valve 22 is controlled.
  • the idle valves 2a, b switch to the idling position. That is, the bypass openings 23a, b between the displacements 18, 19 and the Saughuntabêt 4c are open. There is thus a connection between the environment at the working medium inlet and the displacements 18, 19, whereby the air is no longer compressed during a piston movement.
  • the compressed air for the control of the idle valves 2a, b can be removed, for example, from the compressed air tank.
  • FIG 2 shows a reciprocating compressor in the operating mode with a cylinder head 1 in which the idle valves 2 a, b are positioned.
  • Figure 3 shows a possible embodiment of an idle valve in detail.
  • the illustrated idle valves 2a, b are in both representations in the closed position. In this position, the valve body 12 are pressed by the spring 1 1 against the valve seat plate 9. The bypass openings 23a, b are thus closed in this position. To open the idle valves 2a, b they are pressurized via the control air connection 14 and the control pressure chamber 25 with compressed air. As can be clearly seen in Figure 3, the compressed air from the control pressure chamber 25 via the connecting channel 5 in the piston chamber 27. By pressurizing the valve body 12 moves against the spring force along the guide body 13, in an open position.
  • both idle valves 2a, b are positioned in a portion of the suction chamber 4c.
  • the control pressure chamber 25 is arranged, are controlled via the two idle valves simultaneously, so that as possible a simultaneous circuit of the idle valves.
  • a discharge channel 3 is provided in the valve seat plate.
  • FIG. 3 shows an alternative idling valve 2.
  • the illustrated idling valve is in the closed position. In this position, the valve body 12 is pressed by the spring 1 1 against the valve seat plate 9. The bypass opening 23a, b is thus closed in this position.
  • the idling valve essentially comprises a valve body 12, a guide body 13 and a spring element 1 1. Due to this simple structure, the idle valve is only functional when it is installed in a cylinder head.
  • the idle valve 2 is fixed to a component of the cylinder head 1, here on the partition plate 7 of the cylinder head. 1 Furthermore, a counter-sealing surface 26b is required, against which the valve body 12 can be pressed with its end face arranged sealing surface 26a. This is here the valve seat plate 9 of the cylinder head 1 and the compressor.
  • the central component of the idle valve 2 is the guide body 13, which can be made in one piece by the simple structure. Furthermore, the guide body 13 essentially has four sections. The attachment portion 28, the guide portion 29, the piston portion 30 and the head portion 31. The diameters of the individual sections are graduated from one another such that the assembly is very simple and errors or malfunctions can be virtually ruled out.
  • sealing pack (23a, b) The sealing of the piston chamber 27 by means of the sealing pack (23a, b) is solved very easily. These are inserted in grooves, in each case at least one sealing packet 23a, b in the guide section 29 and in the piston section 30.
  • a sealing pack 23a, b consists of a sliding ring and O-ring.
  • the invention is not limited to a two-stage compressor. Rather, more than two stages can be connected in series, in which case one idle valve per compressor stage can then be provided in each case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

L'invention concerne une culasse (1) destinée à un compresseur à pistons multi-étagé servant à comprimer un fluide de travail compressible, la culasse comprenant une partie supérieure de culasse (8), une partie inférieure de culasse (6) et une plaque porte-soupapes (9). Dans la plaque porte-soupapes (9) sont agencées des soupapes d'admission et d'échappement par lesquelles un espace de travail (18) d'un premier étage du compresseur et un espace de travail (19) d'un étage suivant du compresseur peuvent être remplis ou vidés pendant le fonctionnement du compresseur, des parties de la culasse (1) forment une chambre d'aspiration (4a, 4b, 4c) munie d'un orifice d'admission (14) du fluide de travail, et une ouverture de dérivation (23a) ménagée dans la plaque porte-soupapes (9) permet de relier l'espace de travail (18) du premier étage du compresseur à la chambre d'aspiration (4a, 4b, 4c), une soupape de marche à vide (2a) étant agencée dans le raccordement. L'invention vise à améliorer le fonctionnement. À cet effet, un canal (3) présentant une seconde ouverture de dérivation (23b) et ménagé dans la plaque porte-soupapes (9) permet de relier l'espace de travail (19) de l'étage suivant du compresseur à la chambre d'aspiration (4a, 4b, 4c).
PCT/EP2016/079981 2015-12-14 2016-12-07 Culasse pour compresseur à pistons multi-étagé WO2017102472A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201690001408.3U CN208686535U (zh) 2015-12-14 2016-12-07 多级活塞式压气机的缸盖和多级活塞式压气机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015225065.2 2015-12-14
DE102015225065.2A DE102015225065B4 (de) 2015-12-14 2015-12-14 Zylinderkopf für mehrstufigen Kolbenverdichter

Publications (1)

Publication Number Publication Date
WO2017102472A1 true WO2017102472A1 (fr) 2017-06-22

Family

ID=57539233

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/079981 WO2017102472A1 (fr) 2015-12-14 2016-12-07 Culasse pour compresseur à pistons multi-étagé

Country Status (3)

Country Link
CN (1) CN208686535U (fr)
DE (1) DE102015225065B4 (fr)
WO (1) WO2017102472A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022134427A1 (de) 2022-12-21 2024-06-27 Voith Patent Gmbh Kolbenkompressor mit Leerlauffunktion

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2633654A1 (de) * 1975-07-29 1977-02-17 Magneti Marelli Spa Vorrichtung zur inbetriebsetzung im leerlauf von volumetrischen kompressoren
EP0091994A1 (fr) * 1982-04-21 1983-10-26 WABCO Vermögensverwaltungs-GmbH Dispositif de production de gaz sous pression
DE19745118A1 (de) * 1997-10-11 1999-04-15 Wabco Gmbh Druckerzeugungsanlage
DE19848217A1 (de) * 1998-10-20 2000-04-27 Wabco Gmbh & Co Ohg Gasverdichter
EP2226503A1 (fr) * 2009-03-04 2010-09-08 Voith Patent GmbH Compresseur à piston

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4321013C5 (de) * 1993-06-24 2014-07-17 Wabco Gmbh Gasverdichter
DE10321771C5 (de) * 2003-05-15 2017-01-19 Continental Teves Ag & Co. Ohg Verfahren zur Leistungsbegrenzung eines mehrstufigen Kompressor und Kompressor zur Durchführung des Verfahrens
DE102009053133A1 (de) 2009-11-05 2011-05-12 Voith Patent Gmbh Kolbenverdichter mit Leerlaufventil
DE102013001147A1 (de) 2013-01-24 2014-07-24 Voith Patent Gmbh Mehrstufiger Kolbenverdichter
DE102014202265A1 (de) * 2014-02-07 2015-08-13 Voith Patent Gmbh Verdichter für ein Druckluftsystem insbesondere eines Kraftfahrzeugs
AT516091B1 (de) * 2014-06-30 2018-05-15 Hoerbiger Kompressortech Hold Leerlaufregelung für mehrstufigen Kolbenverdichter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2633654A1 (de) * 1975-07-29 1977-02-17 Magneti Marelli Spa Vorrichtung zur inbetriebsetzung im leerlauf von volumetrischen kompressoren
EP0091994A1 (fr) * 1982-04-21 1983-10-26 WABCO Vermögensverwaltungs-GmbH Dispositif de production de gaz sous pression
DE19745118A1 (de) * 1997-10-11 1999-04-15 Wabco Gmbh Druckerzeugungsanlage
DE19848217A1 (de) * 1998-10-20 2000-04-27 Wabco Gmbh & Co Ohg Gasverdichter
EP2226503A1 (fr) * 2009-03-04 2010-09-08 Voith Patent GmbH Compresseur à piston

Also Published As

Publication number Publication date
CN208686535U (zh) 2019-04-02
DE102015225065B4 (de) 2022-03-31
DE102015225065A1 (de) 2017-06-14

Similar Documents

Publication Publication Date Title
DE1628144C3 (de) Saugdrosselsteuereinrichtung
EP1650434B1 (fr) Compresseur à pistons multi-étages ayant un gain en puissance réduit à vide
WO2017102397A1 (fr) Culasse de compresseur à pistons multi-étagé
EP2673506B1 (fr) Arrangement de compresseurs pour un appareil de réglage pneumatique de véhicule
DE4321013A1 (de) Gasverdichter
DE102013001147A1 (de) Mehrstufiger Kolbenverdichter
DE102005040921B4 (de) Trockenlaufender Schraubenverdichter mit pneumatisch gesteuertem Entlüftungsventil
DE102015204385A1 (de) Axialkolbenmaschine
DE102017004360A1 (de) Verfahren zum Betreiben einer Druckregelanlage mit einem mehrstufigen Kompressor, sowie Druckregelanlage
DE102009053133A1 (de) Kolbenverdichter mit Leerlaufventil
EP4004370B1 (fr) Dispositif de soupape pour un compresseur à piston
WO2017102472A1 (fr) Culasse pour compresseur à pistons multi-étagé
EP3102826A1 (fr) Compresseur d'air pour système à air comprimé, notamment d'un véhicule automobile
EP1998045A1 (fr) Machine volumétrique avec soupapes coaxiales
DE102014000469A1 (de) Schraubenverdichter
EP3167192B1 (fr) Dispositif pour fournir des fluides se trouvant sous une pression apte à être prédéterminée
DE202016106772U1 (de) Leerlaufventil für mehrstufigen Kolbenverdichter
EP2708745B1 (fr) Compresseur à pistons à plusieurs étages doté de soupapes de ralenti pour la réalisation d'une fonction de ralenti
EP0866394B1 (fr) Régulateur pour installations de production d'air comprimé dans des véhicules
WO2012163619A1 (fr) Compresseur à limitation de la pression
EP4390128A1 (fr) Compresseur à piston avec fonction de ralenti
EP2824307A1 (fr) Système de récupération de chaleur pour un moteur à combustion interne
EP2757264A2 (fr) Unité de compresseur et système de compresseur doté de celle-ci
DE102019130191A1 (de) Drucklufterzeugungssystem für ein Fahrzeug-Druckluftsystem
DE102008054002A1 (de) Kompressor zur Drucklufterzeugung für ein Kraftfahrzeug

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16809347

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16809347

Country of ref document: EP

Kind code of ref document: A1