EP0611889B1 - Plattenventil, insbesondere für Verdichter - Google Patents

Plattenventil, insbesondere für Verdichter Download PDF

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Publication number
EP0611889B1
EP0611889B1 EP94890035A EP94890035A EP0611889B1 EP 0611889 B1 EP0611889 B1 EP 0611889B1 EP 94890035 A EP94890035 A EP 94890035A EP 94890035 A EP94890035 A EP 94890035A EP 0611889 B1 EP0611889 B1 EP 0611889B1
Authority
EP
European Patent Office
Prior art keywords
catcher
hub
plate
auxiliary plate
valve seat
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
EP94890035A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0611889A1 (de
Inventor
Gerald Ing. Pavlu
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
Publication of EP0611889A1 publication Critical patent/EP0611889A1/de
Application granted granted Critical
Publication of EP0611889B1 publication Critical patent/EP0611889B1/de
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
    • F04B39/1053—Adaptations or arrangements of distribution members the members being Hoerbigen valves
    • 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

Definitions

  • the invention relates to a plate valve, in particular for compressors, with a valve seat, a catcher arranged at a distance therefrom and plates arranged between the valve seat and the catcher, etc. a closure plate controlling flow channels of the valve seat and at least one auxiliary plate associated with the closure plate, e.g. Spring, damper or handlebar plate, which is fixed relative to the catcher.
  • a plate valve in particular for compressors, with a valve seat, a catcher arranged at a distance therefrom and plates arranged between the valve seat and the catcher, etc.
  • a closure plate controlling flow channels of the valve seat and at least one auxiliary plate associated with the closure plate, e.g. Spring, damper or handlebar plate, which is fixed relative to the catcher.
  • Various types of plate valves of this type are known (see e.g. GB-A-1 017 035).
  • the closure plate When working with such valves, the closure plate carries out a lifting movement between the valve seat and the catcher, alternately closing and releasing the flow channels of the valve seat.
  • the auxiliary plates have the task of resiliently loading the closure plate against the valve seat so that the valve is closed even when depressurized, to dampen the impact of the closure plate on the catcher and, if necessary, to guide it during the stroke movement.
  • the auxiliary plates in the known designs are generally fixed in the valve, usually clamped with their hub located in the center between the catcher and a spacer ring provided between the catcher and the valve seat. Versions are also known in which the auxiliary plates are simply screwed onto the catcher radially outside the hub.
  • the fixing of the auxiliary plates in the valve is relatively complex.
  • the use of a spacer ring means a separate component, which not only makes the valve more expensive, but also complicates assembly.
  • the space requirement of a spacer or guide ring in the center of the valve is relatively large, as a result of which its possible passage cross section is reduced.
  • the effort is even greater because several screws must be provided and installed, which can also be an obstacle in the way of catching the closure plate on the catcher.
  • the invention has for its object to improve and simplify the previously known plate valves of the type mentioned so that the auxiliary plates provided can be easily and quickly attached to the valve using only a few components.
  • this object is achieved in that the catcher projects with a catcher hub against the valve seat, which is provided with at least one radial incision, for example a groove, that the auxiliary plate has a recess in its center which is larger than the cross section of the Catcher hub is and has at least two retaining arms projecting over its inner edge, and that the retaining arms by placing the auxiliary plate with its central recess on the catcher hub and a relative movement between the catcher and auxiliary plate, for example by twisting or moving the auxiliary plate in its plane, into an incision in the Catcher hub can be snapped into place.
  • the catcher is thus provided in the valve design according to the invention with a hub, which can be connected in one piece with it, so that no single spacer or guide ring between the valve seat and catcher is required.
  • the correspondingly designed auxiliary plate only needs to be placed on this catcher hub during assembly and anchored by a relative movement in order to achieve a secure fixation in the valve and to enable a smooth movement of this plate.
  • In the catcher hub only one or more incisions corresponding to the number of auxiliary plates to be accommodated, which are easy to produce, are required.
  • the training according to the invention is thus characterized by simplicity, easy assembly without tools and by few components.
  • the catcher hub is formed with a non-circular cross-section and has flats of circular shape or recesses that run in the axial direction and match the holding arms of the associated auxiliary plate, the auxiliary plate being attachable to the catcher hub in the axial direction and by twisting into the incisions in the catcher hub can be snapped into place.
  • the catcher hub is easy to manufacture because only relatively small flats or recesses are required, which can be easily produced by milling or grinding.
  • the catcher hub has incisions at two diametrically opposite points and the recess arranged in the center of the auxiliary plate fits eccentrically on the catcher hub, the holding arms after the auxiliary plate has been placed on the catcher hub by moving the auxiliary plate in it Plane can be snapped into the incisions in the catcher hub.
  • the catcher hub can maintain its cylindrical cross-section; it only has to be provided with incisions for receiving the holding arms.
  • the recess in the center of the auxiliary plate must, however, be somewhat larger, so that this design also takes up a somewhat larger space overall.
  • the holding arms of the auxiliary plate can be arched at least in their area engaging in the incisions of the catcher hub, preferably with a generatrix running parallel to a radius of the catcher hub, and can snap into the incisions of the catcher hub with elastic prestress.
  • the holding arms are elastically deformed when inserted into the incisions of the catcher hub, so that they springily fill the incisions and are anchored in them without play. The resulting frictional forces prevent the holding arms from being unintentionally released from the incisions and thereby also a disadvantageous loosening of the auxiliary plate fixed in the valve.
  • an improvement of the fixation can further be achieved in that at least one axial bore is provided in the catcher hub, which cuts at least one incision for receiving a holding arm of the auxiliary plate and into which a pin can be inserted, which, after the holding arms have locked in place the associated incision comes into engagement with the holding arm.
  • the holding arms are thus secured in the respective incision of the catcher hub by a simple pin, so that the auxiliary plate can neither disengage from its fixation nor twist.
  • An expedient embodiment consists in the fact that the pins inserted into the axial bores in the area of the incisions of the catcher hub have aligned incisions in the incisions provided therein, into which the holding arms can be inserted, wherein approximately semicircular recesses are provided in the holding arms, into which the Engage the pins by twisting them with their side facing away from the incision. It is not necessary to insert the pins into the catch hub only after the holding arms have been inserted into the catch hub. The incisions in the pins allow the holding arms to be inserted even with the pins already inserted. The final anchoring is then done by simply twisting the pins.
  • the pins can be seated in blind bores which start from the side of the valve seat these are covered to prevent them from falling out and are provided on their end face with an attack profile for a tool, for example with a transverse slot for a screwdriver, for rotation.
  • a variant of the fixation according to the invention is that the pins protrude from the blind holes in the catcher against the valve seat and engage in blind holes provided in the valve seat.
  • these pins also take on the task of positioning the valve seat relative to the catcher plate, which means that additional devices such as pins or markings can be omitted.
  • the pins protruding from the catcher hub are easy to grasp and twist. This makes assembly easier, but additional, if only short, blind holes are required in the valve seat.
  • FIG. 1 shows an axial central section through an exemplary embodiment of the valve according to the invention
  • FIG. 2 also shows an axial central section through the catcher
  • FIG. 3 shows a plan view of the catcher
  • FIG. 4 shows a detail in axial section and on a larger scale
  • 5 shows a section along the line VV in FIG. 4
  • FIG. 6 shows a detail of a further embodiment in the axial central section and on a larger scale
  • FIG. 7 shows a section along the line VII-VII in FIGS. 6 and 8, a cross section through a support arm of an auxiliary plate.
  • the valve according to the invention for example shown, consists of a valve seat 1 and a catcher plate 2, which is held together with the valve seat 1 by a central screw 3.
  • a closure plate 4 which can be made of plastic, for example, and one or more auxiliary plates 5, e.g. Spring, damper or handlebar plates.
  • Through channels 6 are arranged in the valve seat 1 and are controlled by the closure plate 4, and flow channels 7 are provided in the catcher 2.
  • a pin 8 and a catcher hub 9 can still be seen.
  • the catcher 2 has a catcher hub 9 connected to it in one piece, which is provided with an axial bore 10 into which the pin labeled 8 in Fig. 1 can be inserted. 3, two pins 8 can be seen in the catcher hub 9, which are diametrically opposite one another.
  • a ring-shaped incision 11 formed as a groove which is open radially outward is provided in dashed lines and flats 12 of the catcher hub 9 are formed at an angle of approximately 90 ° between the two pins 8, for example by milling or grinding.
  • FIG. 4 and 5 show the more precise design of the valve shown in the area of the catcher hub 9.
  • Fig. 4 the middle part of the valve seat 1 and the catcher 2, the closure plate 4 and two auxiliary plates 5 are shown.
  • the catcher hubs are 9 and two Detect pins 8.
  • the two auxiliary plates 5 protrude with their inner edge into the incision 11 which is provided in the catcher hub 9.
  • the catch hub 9 is also formed with a non-circular cross section.
  • the two flats 12 lie diametrically opposite one another.
  • the auxiliary plate 5 shown is placed on the catcher hub 9 in such a way that it rests on the flats 12 with projecting holding arms 13.
  • the short arms 13 engage in the incisions 11 in the catcher hub 9 and reach the area of the pins 8 when they are rotated by approximately 90 ° a semicircular recess 15 is provided in the middle of the holding arms 13, into which the pins 8 engage.
  • the exemplary embodiment according to FIGS. 6 and 7 differs from the previously described exemplary embodiment mainly in that the auxiliary plate 5 is placed eccentrically on the catcher hub 9, which can also have a circular cross section.
  • Fig. 7 shows that the catcher hub 9 has two incisions 11 at two diametrically opposite points, each of which is penetrated by a pin 8. 6, the pins 8 themselves are likewise provided with incisions 17 which are aligned with the incisions 11 when the pins 8 are inserted.
  • auxiliary plate 5 fits eccentrically on the catcher hub 9 with its recess. It is thus pushed onto the catcher hub 9 in the position shown in FIG. 7, whereupon the auxiliary plate 5 is then shifted in its plane in the direction of the arrow 14, the two holding arms 13 engaging in the incisions 11 of the catcher hub 9 and also the incisions 17 in pins 8. As soon as the holding arms 13 with the semicircular recesses 15 are in the region of the pins 8, they can be rotated by approximately 180 °, the full half of the pins 8 each reaching the region of the semicircular recesses 15. As a result, the auxiliary plates 5 are fixed relative to the catcher hub 9.
  • a transverse slot 18 such as e.g. is shown in Fig. 7, which is intended for receiving a screwdriver.
  • the pins 8, each seated in a blind bore of the catcher hub 9, are covered by the valve seat 1 and thus secured against falling out.
  • the holding arms 13 can also have a slightly curved shape instead of just so that they are resiliently compressed when inserted into the incisions 11 of the catcher hub 9. In this way, the auxiliary plates 5 are held without play. With sufficient spring force, the pins 8 can be omitted for securing.
  • the auxiliary plates 5 can be spring, damper or handlebar plates.
  • the spring plate will be used most often because practically every modern plate valve has springing.
  • Spring plates deformed in other ways are also conceivable, e.g. so-called sinus springs with cylindrical curvature or disc springs. It is also possible to fix different types of plates in the same valve in the manner according to the invention, e.g. Spring and damper plates, possibly at different distances from the catcher.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Check Valves (AREA)
  • Compressor (AREA)
  • Lift Valve (AREA)
EP94890035A 1993-02-15 1994-02-10 Plattenventil, insbesondere für Verdichter Expired - Lifetime EP0611889B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0027093A AT401550B (de) 1993-02-15 1993-02-15 Plattenventil, insbesondere für verdichter
AT270/93 1993-02-15

Publications (2)

Publication Number Publication Date
EP0611889A1 EP0611889A1 (de) 1994-08-24
EP0611889B1 true EP0611889B1 (de) 1995-10-25

Family

ID=3486081

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94890035A Expired - Lifetime EP0611889B1 (de) 1993-02-15 1994-02-10 Plattenventil, insbesondere für Verdichter

Country Status (7)

Country Link
EP (1) EP0611889B1 (enrdf_load_stackoverflow)
KR (1) KR940019996A (enrdf_load_stackoverflow)
CN (1) CN1096856A (enrdf_load_stackoverflow)
AT (1) AT401550B (enrdf_load_stackoverflow)
AU (1) AU663815B2 (enrdf_load_stackoverflow)
DE (1) DE59400034D1 (enrdf_load_stackoverflow)
TW (1) TW262521B (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103452812A (zh) * 2013-09-22 2013-12-18 四川大川压缩机有限责任公司 防侧倾压缩机网状气阀

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2213259A (en) * 1937-01-05 1940-09-03 Sullivan Machinery Co Valve mechanism
US2632621A (en) * 1950-09-23 1953-03-24 Vilbiss Co Valve mechanism
GB923215A (en) * 1960-02-27 1963-04-10 Compressor Accessories Ltd Improvements in or relating to fluid control valves
DE1133193B (de) * 1960-10-20 1962-07-12 Hoerbiger Ventilwerke Ag Plattenventil
AT243420B (de) * 1963-05-08 1965-11-10 Enfo Grundlagen Forschungs Ag Mehrringventil
DE1650510B2 (de) * 1967-07-13 1975-08-21 Remscheider Werkzeugfabrik A. Ibach & Co, 5630 Remscheid Selbsttätig arbeitendes Ventil für Kolbenverdichter
GB2184521B (en) * 1985-12-21 1990-06-06 David Godfrey Williams A valve component for a frictionless guided valve
ES2045561T3 (es) * 1988-05-31 1994-01-16 Hoerbiger Ventilwerke Ag Valvula anular

Also Published As

Publication number Publication date
DE59400034D1 (de) 1995-11-30
ATA27093A (de) 1996-02-15
AU5317394A (en) 1995-06-22
EP0611889A1 (de) 1994-08-24
TW262521B (enrdf_load_stackoverflow) 1995-11-11
KR940019996A (ko) 1994-09-15
AT401550B (de) 1996-09-25
AU663815B2 (en) 1995-10-19
CN1096856A (zh) 1994-12-28

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