US3792718A - Plate valve assembly - Google Patents

Plate valve assembly Download PDF

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Publication number
US3792718A
US3792718A US00227398A US3792718DA US3792718A US 3792718 A US3792718 A US 3792718A US 00227398 A US00227398 A US 00227398A US 3792718D A US3792718D A US 3792718DA US 3792718 A US3792718 A US 3792718A
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US
United States
Prior art keywords
plate
valve
link
abutment
catcher
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
US00227398A
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English (en)
Inventor
R Kohler
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
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Publication of US3792718A publication Critical patent/US3792718A/en
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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
    • F04B39/1053—Adaptations or arrangements of distribution members the members being Hoerbigen 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
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/08—Check valves with guided rigid valve members shaped as rings
    • F16K15/10—Check valves with guided rigid valve members shaped as rings integral with, or rigidly fixed to, a common valve plate
    • 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]
    • Y10T137/785—With retarder or dashpot
    • 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]
    • Y10T137/7859—Single head, plural ports in parallel
    • Y10T137/7861—Annular head
    • Y10T137/7862—Central post on seat
    • Y10T137/7863—Stop

Definitions

  • a plate valve assembly for a piston compressor which Feb. 19,1971 Austraha 1456/71 comprises a spaced valve Seat and catcher a valve plate between the valve seat and catcher, a guiding [g%] p.881. 137/514, system for the valve plate consisting of at least one 'l 11 516/21 flexible link having one extremity integral with the 1 0 earc valve plate and at least one abutment overlying the valve plate for limiting deflection of said link in the [56] E g gfr z lf C'ted S direction of the catcher.
  • PLATE VALVE ASSEMBLY This invention relates to plate valve assemblies for piston compressors, comprising a valve seat and catcher, and a valve plate between the valve seat and v catcher wherein the valve plate is equipped with a frictionless guiding system consisting of at least one flexible link which has one extremity integral with the valve plate and has its other extremity anchored in axially spaced relation from an abutment surface of the valve plate facing the catcher.
  • Guiding link systems for the valve plate that is to say systems comprising one or more flexible links are well known.
  • the link arms formed integrally with the valve plate have their extremities coupled to co-ordinated links of a link plate, fastened in the valve assembly.
  • This embodiment allows large valve plate strokes, with considerable overall length of the links and consequent lesser stress on the guiding link system.
  • An embodiment is also known wherein the flexible links of the valve plate itself are anchored between the valve seat and the catcher, commonly being clamped, with the aid ofa boss, by means of the central screw of the valve assembly. This eliminates a special link plate, but the space available for the links is restricted, so that relatively short link arms must cope with the entire stroke.
  • the link arms undergo relatively high stresses therefore, especially in the case of longer strokes, so that link breakages can occur which render the valve unusable and moreover endanger the piston compressor itself, since fragments could drop into the cylinder.
  • the link guiding system accordingly requires special care when designing the plate valve assembly.
  • valve plate links it is also known for the valve plate links to be anchored directly on the catcher by means of a hub, so that when the valve is completely opened, the valve plate and its links lie flat in the same plane on the abutment surface of the catcher.
  • the links are thus supported on the catcher when the valve is open, they are however bent outwardly relatively far from the plane of the valve plate, when the valve is closed.
  • the flat contact of the links on the catcher promotes disadvantageous late-closing actions of the valve, because the freeing of the valve plate from the catcher is thereby delayed, especially in the case of lubricated valves.
  • An object of the present invention is to provide an improvement in known plate valves having a link guiding system.
  • the invention is based on the finding that the risk of breakage of the links in the known embodiments is presumably attributable to the fact that the links are deflected during the stroke displacement and follow the entire valve plate stroke with a 'part of their length, so that their residual and relatively short link portion is overstressed. The deflection also occurs in the case of long links which are relatively soft and are exposed to direct incident flow of the working'fluid. This is the case in particular when parts of the links cover through-flow passages of the valve seat in a manner known per se, to prevent an excessive loss of flow cross-section.
  • At least one abutment is incorporated in the area of displacement of the link or links of the valve plate, which abutment projects over the surface of the valve plate facing the catcher and limits the link deflection in the direction of the catcher.
  • the abutment may consist of a ring clamped between the valve seat and catcher, the outer periphery of the ring being situated in the area of displacement of the links.
  • a divided spacer is advantageously employed, the one part being formed as a ring which has a slightly larger diameter than the other part and thus forms the abutment.
  • the thickness of such an abutment ring amounts to between say one'half and one fifth of the total plate stroke.
  • This embodiment may also be incorporated subsequently in any valve comprising a link guiding system, i.e., by simple installation of the abutment ring.
  • the catcher itself may also have projections acting as abutment faces for the links.
  • the abutment for each link may be formed as a helical surface on which the link comes into contact over at least a part of its length when the valve plate is lifted off the valve seat.
  • the abutment may consist of a spring plate, damping plate or buffer plate, which the portion situated over the links of the valve plate is endowed with a permanent curvature towards the valve plate and which is preferably clamped between the valve seat and catcher, together with the valve plate. This provides a resilient stop for the links of the valve plate, which ensures extensive support for the valve plate links and thereby minimizes deleterious stressing of the same.
  • the abutment may also consist of a solid nave ring clamped between the valve seat and catcher, to which is adjacent at least one slotted ring conforming in shape to the links of the value plate.
  • This ring may also have a permanent curvature for example of helical form, so that it also serves the purpose of resilient interception of the valve plate links.
  • the abutment for the links of the valve plate will, preferably be arranged between the valve plate and the catcher, so that it prevents excessive deflection of the plate links during opening movement of the valve plate.
  • a further abutment projecting over the valve seat may be incorporated between the latter and the valve plate, which delimits the link deflection in the direction of the valve seat and which is partially imbedded in a recess of the valve seat.
  • This embodiment is appropriate if the links of the valve plate are anchored between and with spacing from both stroke delimiting surfaces, e.g., with a central hub.
  • the links may however also have their inwardly situated extremities anchored directly on the valve seat in a manner known per se, the valve seat concomitantly limiting the link deflection in the one direction.
  • FIGS. 1 to 6 show two forms of plate valve assembly according to the invention
  • FIGS. 1 and 4 each being an axial central section through the respective assemblies
  • FIGS. 2 and 5 each being a plan view of the respective valve plate
  • FIGS. 3 and 6 each showing respective abutment rings in plan view
  • FIG. 7 shows another form of plate valve assembly according to the invention in axial cross section
  • FIGS. 8 and 9 show a damping plate for the assembly of FIG. 7 in sideview and plan view respectively
  • FIG. 10 shows another modified form of plate valve assembly according to the invention in axial cross section, I,
  • FIGS. 11 and 12 show an abutment ring in sideview and plan view
  • 7 FIG. 13 show a further form of valve plate in plan view.
  • the valve assembly consists of a valve seat 1 and a catcher 2 which is connected to the valve seat 1 by means of a central bolt 3 and a nut 4.
  • Throughflow passages S and 6 are formed in the valve seat 1, and in the catcher 2 respectively.
  • a valve plate 7 and a damping or buffer plate 8 Between the valve seat 1 and the catcher 2 are situated in each case a valve plate 7 and a damping or buffer plate 8.
  • plate springs or coil springs may be incorporated in a manner known per se for the valve plate 7 and if appropriate also for the damping plate 8.
  • damping or buffer plates may be employed if required.
  • Encircling the central bolt 3 are situated stroke spacers 9, and abutment rings 10 are incorporated in several of the embodiments.
  • valve plate 7 In its centre, the valve plate 7 has a hub 11 which is clamped in the assembly by means of the central bolt 3 and from which extend flexible links 12 integral with the sealing portion of the valve plate 7 and serving to guide the plate frictionlessly during the stroke displacement.
  • links 12 integral with the sealing portion of the valve plate 7 and serving to guide the plate frictionlessly during the stroke displacement.
  • Embodiments are possible which comprise a single link 12, or several links, in particular two, three or four links.
  • an abutment ring 10 overlies the stroke spacer 9 arranged over the hub 1 1.
  • the damping plate 8 which also has a hub and flexible links, but which may alternately be formed with a rigid central portion.
  • the outer rim of the abutment ring 10 projects beyond the periphery of the stroke spacer 9 and is situated above the innermost links 12 formed by the plate ring adjacent to the hub l 1.
  • a stroke spacer 9, an abutment ring 10 and a damping or buffer plate 8 are arranged around the central bolt 3 and over the hub 11.
  • the valve plate 7 shown in FIG. 5 has a specially arranged link guiding system.
  • To the hub 11 are joined two approximately semi-circular links 12 which are attached to an uninterrupted plate ring 14, the radial webs 15 interconnecting the plate rings being divided in this area by a slot 16 extending in the peripheral direction.
  • the ring 14 is thus connected only by two diametrically opposed webs 15 to the next outwardly adjacent plate ring 17 which, for its part, is largely separated from the remaining uninterrupted plate rings by further slots 16 and is also joined to these only by means of diametrically opposed radial webs 15.
  • annular parts marked 18 of the rings 14 and 17 are thus extensively flexible and form a part of the link guiding system. Since they are formed without interruptions, they may advantageously be used to cover throughflow passages 5 in the valve seat 1, without having to eliminate the conventional annular incision above the throughflow passages 5 or having to mill the latter.
  • the abutment ring has a hub 19 covering the links 12 and, joined to said hub by means of two webs, an external ring 20 situated above the ring 14 of the valve plate 7 and forming a terminal abutment for the plate.
  • the abutment ring 10 prevents the semi-circular links 12 from overbridging the entire stroke of the valve plate 10 and thus from incurring an excessive bending stress.
  • the abutment ring 10 resiliently intercepts the valve plate 7 during its opening displacement through its flexible ring portions 18, so that an advantageous damping action on the opening surge is obtained.
  • the abutment ring 10 and the resiliently deformed ring portions 18 facilitate the freeing of the valve plate 7 from the damping plate 8 from the catcher 2, so that delayed closures with consequent additional strains on the valve plate 7 are minimized.
  • the inner portion of the damping plate 8 forms the abutment for the links 12 of the valve plate 7.
  • the damping plate 8 has a hub 21 to which is joined a single link which forms the abutment ring 10 for an identically shaped link of the valve plate 7.
  • the hub 21 is permanently bent out of the plane of the damping plate 8 towards the valve seat 1 and is clamped fast in the valve assembly (FIG. 7), conjointly and in direct contact with the hub 11.
  • the link 12 of the valve plate 7 then comes into contact with the abutment ring 10 formed by the link of the damping plate 8 during the opening ofthe valve, thereby essentially securing the same advantages as in the previous embodiments, in particular prevention of a deleterious deflection of the links.
  • FIG. 10 shows an embodiment of the plate valve assembly according to the invention, wherein abutments for the links 12 are incorporated in both directions of displacement of the valve plate 7.
  • the abutment ring 10 acting in the direction of opening is formed by the inner portion of the damping plate 8 as in the embodiment according to FIGS. 7 to 9.
  • Between the valve plate 7 and the valve seat 1 issituated another abutment ring 10' which is shown in FIGS. 11 and 12.
  • the abutment ring 10' has a hub 23 clamped fast immediately below the valve plate 7. From the hub 23 extends a split ring 24 which is permanently bent downwardly from the plane of the hub 23, for example in the shape of a helix.
  • FIG. 10 shows an embodiment of the plate valve assembly according to the invention, wherein abutments for the links 12 are incorporated in both directions of displacement of the valve plate 7.
  • the abutment ring 10 acting in the direction of opening is formed by the inner portion of the damping plate 8 as in the embodiment according to FIGS.
  • the ring 24 extends into a recess 25 of the valve seat 1, in which it is partially imbedded.
  • the abutment ring 10' thus prevents a downward deflection of the link or links 12 of the valve plate 7 in the direction towards the valve seat 1, so that the valve plate links are protected against overloads in both directions of displacement.
  • the valve plate 7 shown in FIG. 13 fundamentally corresponds to the embodiment shown in FIG. 5, with the difference that a single link 12 only, is used.
  • the link 12 extends from the hub 11 and is joined to the innermost uninterrupted plate ring 14 which is connected by two webs 15 only to the next uninterrupted plate ring 17.
  • These two webs 15 are situated on plate diameters which, in the case illustrated, subtend a right angle between them, so asto leave a free ring portion 18 ex tending uninterruptedly along approximately threequarters of the circumference, at the middle of which the link 12 is joined to the ring 14.
  • a single web only may be arranged between the rings 14 and 17 instead of the two webs 15.
  • the ring portion 18 is flexible and consequently forms a part of the link guiding system. If the link 12 is intercepted, for example by an abutment ring 10' according to FIGS. 11 and 12, either in the opening direction or/and in the closing direction of the valve plate 7, say at a distance of between one third to one sixth of the stroke from the abutment surface, the ring portion 18 is resiliently bent out of the valve plate 7, and thus takes over the function of the link at the same time performing a damping action on the impact of the valve plate, since it is more rigid than the link 12. As in the previous embodiments, this also prevents overstressing of the link 12 of the valve plate.
  • a plate valve assembly for a piston compressor comprising a spaced valve seat and catcher, a valve plate disposed between the valve seat and the catcher, the valve plate being so designed as to define a guiding system comprising at least one integral flexible link and another portion of the valve plate spaced axially from the catcher, at least one abutment element overlying the valve plate in the area of said link for limiting deflection of said linkin the direction of the catcher, said abutment having-an outer periphery lying in the area of deflection of said link.
  • a plate valve assembly according to claim '1 wherein the abutment comprises a ring means clamped between the valve seat and the catcher, the ring having said outer periphery lying in the area of deflection of the link.
  • a plate valve according to claim 1 further comprising a buffer plate disposed between the catcher and the valve plate, the abutment being formed as a projection integral with the buffer plate, the projection forming abutment surfaces for the link.
  • a plate valve assembly according to claim 1, wherein the abutment is formed as a helical surface with which the link comes into contact at least over a part of its length when the valve plate is lifted off the valve seat.
  • a plate valve assembly according to claim 4, wherein the abutment is formed as an uninterrupted nave ring clamped between the valve seat and catcher to which nave ring is attached at least one divided ring conforming in shape to the shape of the or each link of the valve plate.
  • a plate valve assembly according to claim 1 including a further abutment for limiting deflection of the link in the direction of the valve seat, said further abutment lying between the valve plate and the valve seat.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Compressor (AREA)
  • Mechanically-Actuated Valves (AREA)
US00227398A 1971-02-19 1972-02-18 Plate valve assembly Expired - Lifetime US3792718A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT145671A AT306910B (de) 1971-02-19 1971-02-19 Plattenventil für Kolbenverdichter

Publications (1)

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US3792718A true US3792718A (en) 1974-02-19

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ID=3514298

Family Applications (1)

Application Number Title Priority Date Filing Date
US00227398A Expired - Lifetime US3792718A (en) 1971-02-19 1972-02-18 Plate valve assembly

Country Status (8)

Country Link
US (1) US3792718A (de)
AT (1) AT306910B (de)
BE (1) BE779315A (de)
DD (1) DD96765A5 (de)
DE (1) DE2207806C2 (de)
FR (1) FR2126034A5 (de)
GB (1) GB1358112A (de)
IT (1) IT947711B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115043A (en) * 1975-12-02 1978-09-19 Bykov A V Suction valve of the piston compressor
EP0208814A1 (de) * 1985-06-24 1987-01-21 Ingersoll-Rand Company Ventilelement für Plattenventil
EP0357420A1 (de) * 1988-09-01 1990-03-07 Nupro Company Rückschlagventil
US20080149194A1 (en) * 2006-12-22 2008-06-26 Bernhard Spiegl Automatic annular valve
EP3636921A1 (de) * 2018-10-09 2020-04-15 Burckhardt Compression AG Sitzventil, ventilkomponeten eines sitzventils, sowie verfahren zum herstellen von ventilkomponenten eines sitzventils
US20210025508A1 (en) * 2018-03-08 2021-01-28 Burckhardt Compression Ag Plate valve and method for operating same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS213452B1 (en) * 1980-05-08 1982-04-09 Stanislav Slavik Automatic plate valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056425A (en) * 1959-04-24 1962-10-02 Enfo Grundlagen Forschungs Ag Automatic ring plate valves
US3327731A (en) * 1962-10-04 1967-06-27 Hoerbiger Ventilwerke Ag Plate valve
US3703912A (en) * 1970-02-18 1972-11-28 Hoerbiger Ventilwerke Ag Plate valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE201958C (de) *
CH106596A (de) * 1923-06-27 1924-09-01 Sulzer Ag Federndes Plattenventil, insbesondere für Kolbenkompressoren.
AT166814B (de) * 1949-10-31 1950-09-25 Hoerbiger & Co Ringventil, insbesondere für Kompressoren
DE1425622C2 (de) * 1963-08-09 1975-05-07 Dienes Werke Fuer Maschinenteile Kg, 5063 Overath Plattenventil für trockenlaufende Verdichter
AT242281B (de) * 1964-03-05 1965-09-10 Hoerbiger Ventilwerke Ag Selbsttätiges Plattenventil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056425A (en) * 1959-04-24 1962-10-02 Enfo Grundlagen Forschungs Ag Automatic ring plate valves
US3327731A (en) * 1962-10-04 1967-06-27 Hoerbiger Ventilwerke Ag Plate valve
US3703912A (en) * 1970-02-18 1972-11-28 Hoerbiger Ventilwerke Ag Plate valve

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115043A (en) * 1975-12-02 1978-09-19 Bykov A V Suction valve of the piston compressor
EP0208814A1 (de) * 1985-06-24 1987-01-21 Ingersoll-Rand Company Ventilelement für Plattenventil
EP0357420A1 (de) * 1988-09-01 1990-03-07 Nupro Company Rückschlagventil
US20080149194A1 (en) * 2006-12-22 2008-06-26 Bernhard Spiegl Automatic annular valve
US20210025508A1 (en) * 2018-03-08 2021-01-28 Burckhardt Compression Ag Plate valve and method for operating same
US11486505B2 (en) * 2018-03-08 2022-11-01 Burckhardt Compression Ag Plate valve and method for operating same
EP3636921A1 (de) * 2018-10-09 2020-04-15 Burckhardt Compression AG Sitzventil, ventilkomponeten eines sitzventils, sowie verfahren zum herstellen von ventilkomponenten eines sitzventils
WO2020074382A1 (de) * 2018-10-09 2020-04-16 Burckhardt Compression Ag Sitzventil, ventilkomponenten eines sitzventils, sowie verfahren zum herstellen von ventilkomponenten eines sitzventils
US11598433B2 (en) * 2018-10-09 2023-03-07 Burckhardt Compression Ag Poppet valve and method of manufacturing valve components of a poppet valve

Also Published As

Publication number Publication date
DE2207806C2 (de) 1981-10-08
DE2207806A1 (de) 1972-08-31
AT306910B (de) 1973-04-25
FR2126034A5 (de) 1972-09-29
IT947711B (it) 1973-05-30
GB1358112A (en) 1974-06-26
DD96765A5 (de) 1973-04-05
BE779315A (fr) 1972-05-30

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