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US3858605A - Lamellar valve - Google Patents

Lamellar valve Download PDF

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Publication number
US3858605A
US3858605A US42389873A US3858605A US 3858605 A US3858605 A US 3858605A US 42389873 A US42389873 A US 42389873A US 3858605 A US3858605 A US 3858605A
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United States
Prior art keywords
tongues
plate
seating plate
valve
free ends
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
Inventor
Friedrich Bauer
Karl Berger
Hans Hrabal
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.)
Hoerbiger Ventilwerke GmbH and Co KG
Original Assignee
Hoerbiger Ventilwerke 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 Hoerbiger Ventilwerke GmbH and Co KG filed Critical Hoerbiger Ventilwerke GmbH and Co KG
Application granted granted Critical
Publication of US3858605A publication Critical patent/US3858605A/en
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
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/1402—Check valves with flexible valve members having an integral flexible member cooperating with a plurality of seating surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/16—Check valves with flexible valve members with tongue-shaped laminae
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural
    • Y10T137/7839—Dividing and recombining in a single flow path
    • Y10T137/784—Integral resilient member forms plural valves

Definitions

  • the invention relates to a lamellar valve, in particular for compressors, having a seating plate the throughflow openings of which are covered by several elastic tongues arranged in parallel alongside one another.
  • Lamellar valves conventionally consist of elastic tongues which are fixedly clamped at one end to the seating plate and project with their free ends over the throughflow openings of the seating plate which they cover.
  • lamellar valves consisting of separate tongues
  • the lamellar valves are comparatively simple and have a long service life, in particular because of the independent movability of the individual tongues which work substantially elastically, so that hard impacts are avoided. With the valve opened however the stroke gap defined by the tongues decreases from the free end of the tongues to the clamping place.
  • the invention aims at an improvement of the conventional lamellar valves, in particular with reference to the distribution of the flow over the valve opening area and in relation to the manufacture of the lamellar.
  • a lamellar valve having a seating plate the throughflow openings of which are covered by a plurality of elastic tongues arranged in parallel alongside one another, wherein the free ends of adjacent elastic tongues project alternately in opposite directions over the throughflow openings of the seating plate in a meshing arrangement.
  • the elastic tongues projecting in the same direction are connected at one end by a transverse joining web to form two tongue plates each fixed to the seating plates by oppositely directed tongues.
  • the two tongue plates in this arrangement can have the same form and are simple to manufacture, because their tongues have great lateral spacing from one another.
  • all tongues are formed by a single closure plate which has a closed frame and a meander-shaped cut-out forming the tongues.
  • a single closure plate only, with which however the same functional advantages are achieved as with the use of individual tongues or two tongue plates.
  • a catcher plate forming an end abutment for the free ends of the tongues may be provided, the catcher plate having abutment tongues extending alternately from opposite sides, the free ends of the abutment tongues being bent away from the seating plate.
  • This catcher plate also is comparatively simple to manufacture. It can be punched using the same tools as are used for the closure plate, on which it is merely necessary to bend up the abutment tongues.
  • the catcher plate can also be of divided construction, its two parts having the same shape.
  • FIG. 1 a section in the axial direction through a lamellar valve taken along the line I[ in FIG. 2;
  • FIG. 2 a top plan view of the valve with the catcher plate removed
  • FIGS. 3 and 4 variations of the closure plate.
  • the lamellar valve according to FIGS. 1 and 2 has a seating plate 1 with throughflow openings 2 and a catcher plate 3. Between these and the seating plate 1 a closure plate 4 is clamped, which according to FIG. 2 comprises a closed frame 5 having a meander-shaped cut-out 6. As a result of the cut-out 6 elastic tongues 7 and 7' are formed, which project alternately in opposite directions from opposite sides of the frame 5 towards each other, all the tongues 7 or 7 projecting in the same direction being joined by joining webs 8 or 8', as the case may be, formed by the side parts of the frame 5.
  • the tongues 7 and 7 of the closure plate 4 cover the throughflow openings 2 in the seating plate 1, project ing over the said plate alternately in opposite directions, as can be seen from FIG. 2.
  • the tongues 7 and 7' lift up from the seating plate 1 and rest against the catcher plate 3 which in the embodiment according to FIG. 1 is provided with abutment tongues 9 and 9 which are located above the tongues 7 and 7 of the closure plate 4 and the free ends of which are bent upwards from the seating plate 1.
  • FIG. 3 shows a variation of the closure plate 4 which in that illustration is of two-part construction.
  • the tongues 7 and 7' projecting respectively in the same direction are connected together by a joining web 8 or 8' as the case may be to form a tongue plate 10 or 10'.
  • the two identical tongue plates 10 and 10' are arranged one inside the other with tongues 7 and 7' projecting towards one another, so that when combined they form a closure plate.
  • the tongue plates and 10' are simple to manufacture, and a particular advantage is that the tongues 7 and 7 are spaced at a considerable distance from one another so that the finishing work, in particular the removing of burrs from the edges, is considerably facilitated.
  • FIG. 4 shows a closure plate 4 having flexible guide rods 11 for guiding the closure plate without friction during the stroke movement.
  • the closure plate 4 has tongues 7 and 7 lying adjacent to one another and projecting in opposite directions, the said tongues in each case being connected together by a joining web 8 and 8.
  • the flexible guide rods 11 connect laterally to the joining web 8.
  • throughflow openings 2 of the seating plate are covered by the tongues 7 and 7 and the flexible guide rods 11, and also longitudinal webs 12 provided laterally of the said tongues.
  • a lamellar valve having a seating plate the throughflow openings of which are covered by a plurality of elastic tongues arranged in parallel alongside one another, wherein the free ends of adjacent elastic tongues project alternately in opposite directions over the throughflow openings of the seating plate in a meshing arrangement.
  • a lamellar valve as claimed in claim 1 further having a catcher plate forming an end abutment for the free ends of the tongues, the catcher plate having abutment tongues extending alternately from opposite directions, the free ends of the abutment tongues being bent away from the seating plate.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Compressor (AREA)

Abstract

A lamellar valve, such as for compressors, having a seating plate and a plurality of elastic tongues arranged in parallel alongside one another and covering throughflow openings in the seating plate. The free ends of the tongues extend alternately in opposite directions over the throughflow openings. A catcher plate having abutment tongues also extending alternately from opposite directions and bent away from the seating plate forms the end abutment for the free ends of the elastic tongues.

Description

United States Patent [1 1 Bauer et al.
Jan. 7, 1975 LAMELLAR VALVE Inventors: Friedrich Bauer; Karl Berger; Hans Hrabal, all of Vienna, Austria Assignee: Hoerbiger Ventilwerke, Vienna,
Austria Filed: Dec. 12, 1973- Appl. No.: 423,898
[30] Foreign Application Priority Data Dec. 22, 1972 Austria 10972/72 US. Cl. l37/5l2.l5 Int. Cl. Fl6k 15/16 Field of Search 137/5l2.15, 512.4
[ 56] References Cited UNITED STATES PATENTS FOREIGN PATENTS OR APPLICATIONS 823,184 11/1959 Great Britain l37/5l2.l5
Primary Examiner-Robert G. Nilson Attorney, Agent, or Firm-Watson, Cole, Grindle and Watson [57] ABSTRACT 2,798,505 7/1957 Kehler ..l37/512.15X 3,823,735 7/1974 Frenkel ..137/5I2.15 4C'amS4DraWmg F'gures LAMELLAR VALVE The invention relates to a lamellar valve, in particular for compressors, having a seating plate the throughflow openings of which are covered by several elastic tongues arranged in parallel alongside one another.
Lamellar valves conventionally consist of elastic tongues which are fixedly clamped at one end to the seating plate and project with their free ends over the throughflow openings of the seating plate which they cover. As well as lamellar valves consisting of separate tongues, there are also known embodiments in which several tongues are joined together at their fixedly clamped ends by a transverse joining web. The lamellar valves are comparatively simple and have a long service life, in particular because of the independent movability of the individual tongues which work substantially elastically, so that hard impacts are avoided. With the valve opened however the stroke gap defined by the tongues decreases from the free end of the tongues to the clamping place. This difference in stroke leads to different fiow conditions along the tongues with the result that, in particular in the vicinity of the clamping place of the tongues, impurities are deposited because of the slight fiow prevailing there, and these can cause the valve to leak. In addition, with several tongues joined together to form a common closure plate, the tongues are laterally spaced apart by a relatively short distance, with the result that finishing work on the tongues is made difficult, in particular the removal of burrs in the case of punched embodiments.
The invention aims at an improvement of the conventional lamellar valves, in particular with reference to the distribution of the flow over the valve opening area and in relation to the manufacture of the lamellar.
According to the invention there is provided a lamellar valve having a seating plate the throughflow openings of which are covered by a plurality of elastic tongues arranged in parallel alongside one another, wherein the free ends of adjacent elastic tongues project alternately in opposite directions over the throughflow openings of the seating plate in a meshing arrangement.
The clamping places of the tongues in this arrangement rest alternately on different sides of the valve and the sum of the stroke gap areas of two adjacent tongues is always constant over the entire tongue length. As a result an improved distribution of the flow over the valve cross-section is achieved and the tongues can be placed closer to one another so that the available valve opening area is better utilised. Nevertheless the tongues can be simply manufactured, worked and assembled.
According to a preferred embodiment of the invention the elastic tongues projecting in the same direction are connected at one end by a transverse joining web to form two tongue plates each fixed to the seating plates by oppositely directed tongues. The two tongue plates in this arrangement can have the same form and are simple to manufacture, because their tongues have great lateral spacing from one another.
According to another variation of the invention all tongues are formed by a single closure plate which has a closed frame and a meander-shaped cut-out forming the tongues. In this case there is a single closure plate only, with which however the same functional advantages are achieved as with the use of individual tongues or two tongue plates.
In a further development of the invention, a catcher plate forming an end abutment for the free ends of the tongues may be provided, the catcher plate having abutment tongues extending alternately from opposite sides, the free ends of the abutment tongues being bent away from the seating plate. This catcher plate also is comparatively simple to manufacture. It can be punched using the same tools as are used for the closure plate, on which it is merely necessary to bend up the abutment tongues. The catcher plate can also be of divided construction, its two parts having the same shape.
In the drawing examples ofembodiment of the lamellar valve according to the invention are shown. The drawings show:
FIG. 1 a section in the axial direction through a lamellar valve taken along the line I[ in FIG. 2;
FIG. 2 a top plan view of the valve with the catcher plate removed, and
FIGS. 3 and 4 variations of the closure plate.
The lamellar valve according to FIGS. 1 and 2 has a seating plate 1 with throughflow openings 2 and a catcher plate 3. Between these and the seating plate 1 a closure plate 4 is clamped, which according to FIG. 2 comprises a closed frame 5 having a meander-shaped cut-out 6. As a result of the cut-out 6 elastic tongues 7 and 7' are formed, which project alternately in opposite directions from opposite sides of the frame 5 towards each other, all the tongues 7 or 7 projecting in the same direction being joined by joining webs 8 or 8', as the case may be, formed by the side parts of the frame 5.
The tongues 7 and 7 of the closure plate 4 cover the throughflow openings 2 in the seating plate 1, project ing over the said plate alternately in opposite directions, as can be seen from FIG. 2. On opening of the valve the tongues 7 and 7' lift up from the seating plate 1 and rest against the catcher plate 3 which in the embodiment according to FIG. 1 is provided with abutment tongues 9 and 9 which are located above the tongues 7 and 7 of the closure plate 4 and the free ends of which are bent upwards from the seating plate 1. On the basis of the tongues 7 and 7' of the closure plate 4 projecting alternately in opposite directions over the throughflow openings 2, and as a result of the correspondingly arranged abutment tongues 9 and 9', when the valve is open the stroke of a tongue 7 measured in one direction over the length of the tongue alters in inverse proportion to the stroke of the adjacent tongue 7, so that the sum of the total stroke gap areas between two tongues 7 and 7' over the entire length of the tongues is approximately constant. As a result the flow is substantially uniformly distributed over the surface of the valve. The throughflow area of the valve can be better utilized and moreover by avoiding places with little flow, the formation of deposits in the zone of the sealing surfaces of the tongues is avoided.
FIG. 3 shows a variation of the closure plate 4 which in that illustration is of two-part construction. The tongues 7 and 7' projecting respectively in the same direction are connected together by a joining web 8 or 8' as the case may be to form a tongue plate 10 or 10'. The two identical tongue plates 10 and 10' are arranged one inside the other with tongues 7 and 7' projecting towards one another, so that when combined they form a closure plate. The tongue plates and 10' are simple to manufacture, and a particular advantage is that the tongues 7 and 7 are spaced at a considerable distance from one another so that the finishing work, in particular the removing of burrs from the edges, is considerably facilitated.
The embodiment of FIG. 4 shows a closure plate 4 having flexible guide rods 11 for guiding the closure plate without friction during the stroke movement. Also in this embodiment the closure plate 4 has tongues 7 and 7 lying adjacent to one another and projecting in opposite directions, the said tongues in each case being connected together by a joining web 8 and 8. The flexible guide rods 11 connect laterally to the joining web 8. As is shown in this embodiment, throughflow openings 2 of the seating plate are covered by the tongues 7 and 7 and the flexible guide rods 11, and also longitudinal webs 12 provided laterally of the said tongues.
We claim:
1. A lamellar valve having a seating plate the throughflow openings of which are covered by a plurality of elastic tongues arranged in parallel alongside one another, wherein the free ends of adjacent elastic tongues project alternately in opposite directions over the throughflow openings of the seating plate in a meshing arrangement. y
2. A lamellar valve as claimed in claim 1, wherein the elastic tongues projecting in the same direction are connected at one end by a transverse joining web to form two tongue plates each fixed to the seating plate by oppositely directed tongues.
3. A lamellar valve as claimed in claim 1, wherein the tongues are formed by a common closure plate which has a closed frame having a meander-shaped cut-out forming the tongues.
4. A lamellar valve as claimed in claim 1 further having a catcher plate forming an end abutment for the free ends of the tongues, the catcher plate having abutment tongues extending alternately from opposite directions, the free ends of the abutment tongues being bent away from the seating plate.

Claims (4)

1. A lamellar valve having a seating plate the throughflow openings of which are covered by a plurality of elastic tongues arranged in parallel alongside one another, wherein the free ends of adjacent elastic tongues project alternately in opposite directions over the throughflow openings of the seating plate in a meshing arrangement.
2. A lamellar valve as claimed in claim 1, wherein the elastic tongues projecting in the same direction are connected at one end by a transverse joining web to form two tongue plates each fixed to the seating plate by oppositely directed tongues.
3. A lamellar valve as claimed in claim 1, wherein the tongues are formed by a common closure plate which has a closed frame having a meander-shaped cut-out forming the tongues.
4. A lamellar valve as claimed in claim 1 further having a catcher plate forming an end abutment for the free ends of the tongues, the catcher plate having abutment tongues extending alternately from opposite directions, the free ends of the abutment tongues being bent away from the seating plate.
US42389873 1972-12-22 1973-12-12 Lamellar valve Expired - Lifetime US3858605A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1097272A AT320123B (en) 1972-12-22 1972-12-22 Lamella valve, especially for compressors

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US3858605A true US3858605A (en) 1975-01-07

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US (1) US3858605A (en)
AT (1) AT320123B (en)
CA (1) CA986387A (en)
DE (1) DE2357905A1 (en)
ES (1) ES421622A1 (en)
FR (1) FR2211613B1 (en)
GB (1) GB1389970A (en)
IT (1) IT1001199B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930096A (en) * 1974-04-15 1975-12-30 Deering Milliken Res Corp Composite porous fabric-impervious film article
US4253805A (en) * 1978-04-11 1981-03-03 Audi Nsu Auto Union Aktiengesellschaft Rotary compressor
WO1981003534A1 (en) * 1980-05-30 1981-12-10 N Dvoinikov Valve for volume displacement machines
US4668172A (en) * 1983-02-12 1987-05-26 Diesel Kiki Co., Ltd. Compressor having discharge valve means adapted to enhance the coefficient of performance of the compressor
US5105849A (en) * 1991-09-23 1992-04-21 Trw Inc. Body relief valve flap
US20070292289A1 (en) * 2004-09-02 2007-12-20 Knorr-Bremse Systeme Fur Schienenfahrzeuge Gmbh Piston Compressor Producing an Internal Cooling Air Flow in the Crankcase

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT348088B (en) * 1977-07-01 1979-01-25 Enfo Grundlagen Forschungs Ag CLOSING BLADE FOR ONE VALVE WITH SEVERAL CONCENTRICALLY ARRANGED THROUGH CHANNELS
DE102010005136B3 (en) * 2010-01-19 2011-07-21 Pierburg GmbH, 41460 Non-return valve i.e. four-pass non-return valve, for use in exhaust gas recirculation pipes of internal combustion engine, has fastening region attached at slot-shaped recesses between through holes, and closure region covering holes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798505A (en) * 1953-08-11 1957-07-09 Hoerbiger & Co Plate valves
US3823735A (en) * 1971-11-11 1974-07-16 Frenkel Mark Isaakovich Uniflow valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798505A (en) * 1953-08-11 1957-07-09 Hoerbiger & Co Plate valves
US3823735A (en) * 1971-11-11 1974-07-16 Frenkel Mark Isaakovich Uniflow valve

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930096A (en) * 1974-04-15 1975-12-30 Deering Milliken Res Corp Composite porous fabric-impervious film article
US4253805A (en) * 1978-04-11 1981-03-03 Audi Nsu Auto Union Aktiengesellschaft Rotary compressor
WO1981003534A1 (en) * 1980-05-30 1981-12-10 N Dvoinikov Valve for volume displacement machines
US4668172A (en) * 1983-02-12 1987-05-26 Diesel Kiki Co., Ltd. Compressor having discharge valve means adapted to enhance the coefficient of performance of the compressor
US5105849A (en) * 1991-09-23 1992-04-21 Trw Inc. Body relief valve flap
US20070292289A1 (en) * 2004-09-02 2007-12-20 Knorr-Bremse Systeme Fur Schienenfahrzeuge Gmbh Piston Compressor Producing an Internal Cooling Air Flow in the Crankcase
US8308447B2 (en) * 2004-09-02 2012-11-13 Knorr-Bremse System Fur Schienenfahrzeuge Gmbh Piston compressor producing an internal cooling air flow in the crankcase

Also Published As

Publication number Publication date
AT320123B (en) 1975-01-27
DE2357905A1 (en) 1974-06-27
GB1389970A (en) 1975-04-09
ES421622A1 (en) 1976-07-01
IT1001199B (en) 1976-04-20
CA986387A (en) 1976-03-30
FR2211613B1 (en) 1980-10-03
FR2211613A1 (en) 1974-07-19

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