US20220356872A1 - Valve plate having valve lamellae - Google Patents

Valve plate having valve lamellae Download PDF

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Publication number
US20220356872A1
US20220356872A1 US17/624,401 US202017624401A US2022356872A1 US 20220356872 A1 US20220356872 A1 US 20220356872A1 US 202017624401 A US202017624401 A US 202017624401A US 2022356872 A1 US2022356872 A1 US 2022356872A1
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US
United States
Prior art keywords
valve
region
carrier
lamella
plate
Prior art date
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Abandoned
Application number
US17/624,401
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English (en)
Inventor
Manuel Schneider
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.)
Voith Patent GmbH
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
Assigned to VOITH PATENT GMBH reassignment VOITH PATENT GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHNEIDER, MANUEL
Publication of US20220356872A1 publication Critical patent/US20220356872A1/en
Abandoned legal-status Critical Current

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    • 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
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves

Definitions

  • the invention relates to an automatic valve for a reciprocating piston compressor.
  • Different designs of reciprocating piston compressors of this type are well known from the prior art, such as, for example, DE 10 2014 111 526 A1, a distinction being made in the case of reciprocating piston compressors essentially between two functional valves, the valve through which air can flow into the piston-swept chamber, and the valve through which compressed air is conveyed out of the piston-swept chamber.
  • Reciprocating piston compressors are used in motor vehicles, in order to supply compressed air, for example, to a service brake, operated with compressed air, and/or an air suspension system. Ambient air is sucked in by the compressor, compressed, and is purified of impurities, such as oil and water, in further constituent parts of the compressed air supply device before use in the consumers.
  • valve through which air can flow into the piston-swept chamber.
  • Valves for this intended purpose are differentiated by essentially two designs.
  • DE 10 2008 052 744 B3 has disclosed a valve, in the case of which the movement of the closure lamella is limited by way of a catcher or a stop face.
  • the intake operation can be described as follows:
  • valves are known, in the case of which the closure lamella, as described in EP 0 604 385 A1, can swing outward freely and no end stop is provided to limit the movement. In the case of this design, the valve lamella moves freely downward during the intake operation, as a result of which the design is relatively critical.
  • a failure of the valve lamella that is to say a fracture at any point of the lamella, leads directly to the failure of the compressor, and fragments can damage the compressor.
  • the invention is based on the object of proposing a valve plate with a valve lamella which is an improvement with respect to the prior art.
  • valve plate for installation into a reciprocating piston compressor, which valve plate comprises a carrier region and a valve region, the valve region having a movable valve lamella with a valve seat, by means of which passage ducts for a controlled medium in a valve carrier plate can be closed, the valve region acting via webs on the carrier region of the valve plate, with the result that the valve lamella is fixed relative to the carrier region.
  • valve region has a web region which is fixed via the webs with respect to the carrier region, the valve lamella being attached flexibly to the web region.
  • the valve seat is that region on the valve lamella which provides a sealing face, by way of which a sealing action of the passage ducts is made possible.
  • a bending zone can be provided along a bend axis between the valve lamella and the web region.
  • the bending properties and the flexural stresses can be influenced positively in the bending zone by way of the design of the bending zone in relation to the bend axis.
  • the flexural stress in the bending zone is produced in the case of use in a reciprocating piston compressor when the piston moves in the piston-swept chamber and a vacuum is produced in the piston-swept chamber, as a result of which a medium, in particular air, is sucked out of an intake space through inlet openings in the valve plate.
  • the flowing air acts on the valve lamella and bends it into the piston-swept chamber.
  • the opening angle can be changed, with the result that the passage cross section for the controlled medium is increased and the flow conditions for the medium are improved, in order to decrease the passage resistance of the medium through the valve.
  • valve plate or the valve region it can be provided that a web region is provided with two bending zones along in each case one bend axis, in each case one valve lamella being attached flexibly to each bending zone.
  • the valve lamellae are preferably of symmetrical design in the case of this embodiment.
  • the bending zone comprises two or more bending portions, via which the valve lamellae are attached flexibly to the web region.
  • the bending forces in the bending portions can be influenced in a highly advantageous manner by way of the dimensions and the positions of the bending portions, and the bending can thus also be defined.
  • one or more outlet openings for the controlled medium can be provided in the valve region.
  • the compressed air is conveyed out of the piston-swept chamber again through the outlet openings.
  • valve plate has a seal contour at least on one side, by way of which the valve region is separated from further functional regions.
  • the valve plate can thus assume further functions such as, for example, connecting ducts of the compressor from the crankcase region to the cylinder head region in a fluid-tight manner, or disconnecting chambers in the valve carrier plate from chambers or ducts in the crankcase in a fluid-tight manner.
  • the seal contour can be a contour which is embossed into the valve plate or else a sealing compound which is applied to the valve plate.
  • a further embodiment can be a valve plate with two or more valve regions, for example for a two-stage reciprocating piston compressor.
  • valve plate can advantageously be used as intake valve in a compressor, the valve plate being clamped in the compressor between a valve carrier plate, with passage ducts for the inlet and outlet of a controlled medium into and from a piston-swept chamber, and a crankcase.
  • valve carrier plate and the crankcase can have ducts and/or spaces, the valve plate having functional regions, by way of which the ducts and/or spaces are connected to one another in a fluid-conducting manner or are disconnected from one another in a fluid-tight manner.
  • air and, in order to cool the air, cooling water can flow through the ducts and/or spaces.
  • FIG. 1 shows a valve plate according to the invention
  • FIG. 2 shows a sectional illustration of the valve plate which is installed in the compressor.
  • FIG. 1 shows a valve plate 1 with two valve regions 2 a, 2 b for a two-stage reciprocating piston compressor.
  • the design or the contour of the valve regions 2 a, 2 b is adapted by way of example to the requirements of the individual stages, and can also be of different design.
  • This depiction shows a valve plate 1 from the direction of the piston-swept chamber, in the case of which the first compressor stage can be seen at the top and the second compressor stage can be seen at the bottom. Furthermore, the kidney-shaped inlet ducts 3 (dashed lines) are indicated in the region of the valve lamellae 5 .
  • the valve plate 1 is divided into a plurality of regions: the carrier region 8 , the valve regions 2 a, 2 b, and the functional regions 15 a to 15 d. An explanation of each part separately is dispensed with in the case of the functional regions.
  • the essential function of said functional regions is either to connect or to disconnect ducts and spaces in the crankcase 10 and/or the valve carrier plate 9 .
  • the individual regions 2 a, 2 b, 8 and functional regions 15 a to 15 d are separated from one another by way of a seal contour or else an applied sealing compound.
  • Each valve region 2 a, 2 b can be divided into three further regions: the web region 13 and the two lamella regions 14 which are separated by way of the bend axes 6 , the direct region along the bend axis also being called a bending zone.
  • the essential bending of the valve lamella 5 takes place in the bending zone, the valve lamella 5 forming a bending curve in the bending zone during the bending.
  • the bending zone is divided into two or more bending portions, via which the valve lamellae 5 are attached flexibly to the web region 13 .
  • the bending portions therefore form flexible connecting webs.
  • the web region 13 is attached via webs 7 to the carrier region 8 . Since the valve plate 1 and therefore the carrier region 8 are clamped in fixedly in the installed state, the web region 13 with the webs 7 is likewise fixed. This means that the web region remains substantially fixed in its position even in the case of bending of the valve lamellae 5 .
  • openings are provided in the valve regions 2 a, 2 b, which openings form the outlet ducts 4 , through which compressed air can flow out of the piston-swept chamber 11 again.
  • FIG. 2 shows a sectional illustration of the valve plate 1 which is installed in the compressor. This is generally a concept which comprises a catcher-less intake valve which is connected via connecting points to the valve plate 1 , with the result that what is known as an integrally paired joint is formed.
  • valve plate 1 is clamped in between the valve carrier plate 8 and the crankcase 10 .
  • the seal contour cannot be seen here, but it is applied at the corresponding points, with the result that the fluid-tight shielding of the individual functional regions is achieved.
  • valve lamella functional positions of intake and compression are shown: for one thing the basic position, in the case of which the inlet duct 3 is closed by way of the valve lamella 5 , and for another thing the open position, in the case of which the valve lamella 5 is bent in the direction of the piston by way of the vacuum which is generated by the piston and the pressure difference which is produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Check Valves (AREA)
US17/624,401 2019-07-01 2020-06-17 Valve plate having valve lamellae Abandoned US20220356872A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102019117634.4A DE102019117634A1 (de) 2019-07-01 2019-07-01 Ventilplatte mit Ventillamellen
DE102019117634.4 2019-07-01
PCT/EP2020/066658 WO2021001148A1 (de) 2019-07-01 2020-06-17 Ventilplatte mit ventillamellen

Publications (1)

Publication Number Publication Date
US20220356872A1 true US20220356872A1 (en) 2022-11-10

Family

ID=71266617

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/624,401 Abandoned US20220356872A1 (en) 2019-07-01 2020-06-17 Valve plate having valve lamellae

Country Status (6)

Country Link
US (1) US20220356872A1 (zh)
EP (1) EP3994378A1 (zh)
JP (1) JP2022538661A (zh)
CN (1) CN114041024A (zh)
DE (1) DE102019117634A1 (zh)
WO (1) WO2021001148A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220099078A1 (en) * 2020-09-30 2022-03-31 Anhui Meizhi Compressor Co., Ltd. Piston assembly, compressor assembly and refrigeration device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4164238A (en) * 1975-11-03 1979-08-14 Hoerbiger & Co. Closing plate for a ring valve
US5390700A (en) * 1992-12-23 1995-02-21 Hoerbiger Ventilwerke Aktiengesellschaft Automatic valve
WO2015000524A1 (en) * 2013-07-04 2015-01-08 Arcelik Anonim Sirketi Sealing assembly for reciprocating hermetic compressor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1259158B (de) * 1962-01-04 1968-01-18 Hoerbiger Ventilwerke Ag Ventil, insbesondere Saug- oder Druckventil fuer Kolbenverdichter
KR20050017240A (ko) * 2003-08-11 2005-02-22 엘지전자 주식회사 왕복동식 압축기의 흡입밸브 개폐 조절 장치
DE102008052744B3 (de) 2008-10-22 2010-04-01 Voith Patent Gmbh Kompressor
DE102014111526A1 (de) 2014-08-13 2016-02-18 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Vollintegrierter Zylinderkopf für einen Kompressor
DE102017109773A1 (de) * 2017-05-08 2018-11-08 Voith Patent Gmbh Hubkolbenmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4164238A (en) * 1975-11-03 1979-08-14 Hoerbiger & Co. Closing plate for a ring valve
US5390700A (en) * 1992-12-23 1995-02-21 Hoerbiger Ventilwerke Aktiengesellschaft Automatic valve
WO2015000524A1 (en) * 2013-07-04 2015-01-08 Arcelik Anonim Sirketi Sealing assembly for reciprocating hermetic compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220099078A1 (en) * 2020-09-30 2022-03-31 Anhui Meizhi Compressor Co., Ltd. Piston assembly, compressor assembly and refrigeration device
US11952991B2 (en) * 2020-09-30 2024-04-09 Anhui Meizhi Compressor Co., Ltd. Piston and valve sheet arrangement in compressor assembly for refrigeration device

Also Published As

Publication number Publication date
EP3994378A1 (de) 2022-05-11
CN114041024A (zh) 2022-02-11
DE102019117634A1 (de) 2021-01-07
JP2022538661A (ja) 2022-09-05
WO2021001148A1 (de) 2021-01-07

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