FR2626045A1 - Valve set for piston compressor - Google Patents

Valve set for piston compressor Download PDF

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Publication number
FR2626045A1
FR2626045A1 FR8900550A FR8900550A FR2626045A1 FR 2626045 A1 FR2626045 A1 FR 2626045A1 FR 8900550 A FR8900550 A FR 8900550A FR 8900550 A FR8900550 A FR 8900550A FR 2626045 A1 FR2626045 A1 FR 2626045A1
Authority
FR
France
Prior art keywords
valve
plate
plates
seat
perforations
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.)
Granted
Application number
FR8900550A
Other languages
French (fr)
Other versions
FR2626045B1 (en
Inventor
Hans Meier
Marcel Pawlicek
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.)
SULZER BURCKHARD MASCHF
Original Assignee
SULZER BURCKHARD MASCHF
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
Priority to CH176/88A priority Critical patent/CH674757A5/de
Application filed by SULZER BURCKHARD MASCHF filed Critical SULZER BURCKHARD MASCHF
Publication of FR2626045A1 publication Critical patent/FR2626045A1/en
Application granted granted Critical
Publication of FR2626045B1 publication Critical patent/FR2626045B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/10Adaptations or arrangements of distribution members

Abstract

The invention relates to a valve assembly for a piston compressor. </ P> <P> It comprises a suction valve and a discharge valve which are concentric and which each have a seat plate 1, 2 through which perforations 8 13. A valve plate 3, 4 is disposed between the two seat plates and is associated with each of the suction and discharge valves. Each valve plate is held by at least one connecting arm 3 ', 4' between the seat plates. The inner edge of the outer valve plate 4 and the outer edge of the inner valve plate 3 each have a closed ring 4 ", 3" attached to the associated link arm 4 ', 3' and the valve plates are secured between the seat plates on these closed rings. </ P> <P> Range of application: piston compressors.

Description

The invention relates to a set of valves for a piston compressor,

  having a suction valve and a discharge valve concentrically disposed at the suction valve, each of said valves having a seat plate in which there are provided perforations and a valve plate being disposed between said two seat plates and associated at each of the suction and discharge valves, each of the valve plates being held between the plates of

  seat by at least one link arm.

  Such a set of valves is known from FIG. 2 of DE-AS 18 12 580. In this set of valves, the two seat plates are clamped together towards each other by means of a central assembly. Nut and connecting arms joining externally on each of the two valve plates are held at their free ends by studs which are fixed in the seat plates. There exists, between the studs which hold the connecting arms of the inner valve plate, and the inner edge of the outer valve plate, a relatively large radial gap, so that in this area there must also be a seal between the two seat plates so that the suction valve is gastightly isolated from the discharge valve. This embodiment of the valve clearance results in a relatively large diameter of the valve clearance, which is related to a need for

  place even larger on the compressor.

  The object of the invention is to improve a set of valves of the type described at the beginning, so as to reduce them

  the diameter and therefore the need for space.

  The object is realized according to the invention in that the inner edge of the outer valve plate and the outer edge of the inner valve plate each have a closed ring, attached to the associated link arm, and in that both valve plates are sealingly attached to these two closed rings between the seat plates. Due to the presence of the closed rings, which are adjacent to each other and may have relatively small dimensions, it is possible to limit the fixing of the two valve plates between the seat plates on a small annular zone. , which allows to significantly reduce the maximum diameter of the valve game in comparison with that of the known game. In addition, it is possible to eliminate the central fastening with respect to the seat plates, which is also in the direction of reducing the diameter because the space released in the central axis of the set of

  valves is now made available for the circulation of

  gas. The manufacture of the new valve set is very simple, in that the two valve plates are first made in one piece which is then separated to form the two valve plates at the same time.

  means of a laser cutting process.

  The invention will be described in more detail with reference to the accompanying drawings by way of non-limiting example and in which: - Figure 1 is a section of a set of valves along the line I-I of Figure 2; and FIG. 2 is a plan view of the two valve plates assembled one inside the other, at a slightly reduced scale with respect to that of the

figure 1.

  As shown in Figure 1, the valve clearance consists essentially of two seat plates 1 and 2 arranged one on the other and two concentric valve plates 3 and 4 mounted between these two seat plates. The seat plate 1 forms, with its central part and the inner valve plate 3, a suction valve for a compressor which is not

  shown in more detail and including Chamber 5 of compro-

  The outer annular portion of the seat plate 2 and the annular-shaped valve plate 4 constitute a discharge valve having a ring-shaped cross-section in cross-section. The seat plate 1 has, in its central part, perforations 6 in the form of slits which extend over circular arcs concentric with the central axis 7 of the valve set, without however forming a complete circle. In FIG. 1, there is provided, in the seat plate 2, below the central part of the seat plate 1, perforations 8 in the form of slots of the same extent as that of the perforations 6, which perforations 8 are however offset outwardly, on a radial half, with respect to the perforations 6. The perforations 8 flare towards the compression chamber 5 in the manner of diffusers. In addition, a perforation 8 ', flaring in the manner of a diffuser, is in the center of the seat plate 2. The valve plate 3 has perforations 20 in alignment with the perforations 8

and 8 '. -

  The plate 3 of the suction valve is

  pushed against the seat plate 1 by eight springs 9.

  The distribution of the springs 9 on the valve plate 3

  is represented by dashed circles in Figure 2.

  The springs 9 are arranged in corresponding housings

  9 'of the seat plate 2. The gas to be compressed flows in the direction of the arrow 10 through the central part of the seat plate 1, which has the effect of moving the valve plate 3 downwards against the force of the springs 9, so that the gas arrives in the compression chamber 5 through the perforations

6, as well as 20, 8 and 8 '.

  The annular discharge valve of the set of

  valves concentrically surrounds the suction valve.

  The valve plate 4 is pushed against the seat plate 2 by four springs which are not visible in FIG. 1. These springs therefore correspond to the springs 9, but are distributed over the extent of the valve plate 4 (dashed circles). in Figure 2) and inserted in the upper seat plate 1. The seat plate 2 presents

  also perforations 12 in the form of slits, cor-

  corresponding to the perforations 6 of the seat plate-1, which also extend over an arc of a circle, but not over the entire circumference. Punctures 13 of the seat plate 1 are associated with the perforations 12. The valve plate 4 has perforations 21 aligned with the perforations 13 located therein. During the compression phase, the compressed gas flows - under the effect of the detachment of the valve plate 4 relative to the seat plate 2 - in the direction of the arrow 14. The arrival of the gas to be compressed ( arrow 10) and the compressed gas outlet (arrow 14) are separated by a closed annular wall which is represented by the lines

mixed 15 in FIG.

  As shown in FIG. 2, the plates 3 and

  4 of the valve are arranged one inside the other

  cally. The outer valve plate 4 is connected by four linking arms 4 'to a closed inner ring 4 "of fastening. The valve plate 3 located inside

  is similarly connected by four ex-

  3 'connecting to an outer ring 3' 'fixing. As shown in FIG. 1, the fastening rings 3 "and 4", closely adjacent to each other, are clamped between the seat plates 1 and 2. The clamping force is applied by means of four screws 16, only one of which is visible in FIG. 1 and with which the seat plates 1 and 2 are clamped towards each other. It is provided, in the transition zone of each of the arms 4 'of connection in the ring 4' 'of fixation, a notch 17 in the form of a semicircle (Figure 2) for the screws 16. The arms 3' and 4 'of liaison ensure the mobility of

  valve plates 3 and 4 with respect to the rings

  3 "and 4" fasteners. The valve plates 3 and 4, initially manufactured in one piece, are, at the end of the treatment, divided into two plates by a laser cut 22 in which it is provided, on the course of the cut otherwise conducted according to a circle, a smaller, inwardly extending half-circle 23, by means of which the fixing ring 4 "retains a lug which fits into a semicircular groove. 4 can not thus rotate relative to each other during the

mounting.

  In contrast to the embodiment described, the notches 17 in FIG. 2 can each be offset counterclockwise to the line at 45, the transition zone between the arms of FIG. 4 'and the valve plate 4 being offset at the same time correspondingly or reduced to a dimension somewhat less than that shown in Figure 2. An embodiment thus modified has the advantage of allowing the use, for example of the valve plate 3 - in the case where it shows signs of deterioration on the surface cooperating with the seat plate 1 - in such a way that the surface, previously in contact with the springs

  9, then cooperates with the seat plate 1.

Claims (1)

    -REVENDICATIONS
  1.   Piston compressor valve assembly having a suction valve and a discharge valve arranged concentrically with said suction valve, each of said valves having a seat plate (1, 2) which has perforations (8). 13) and a valve plate (3, 4) being disposed between these two seat plates and associated with each of the suction and discharge valves, each valve plate being held by means of at least one connecting arm (3 ', 4') between the seat plates, characterized in that the inner edge of the outer valve plate (4) and the outer edge of the inner valve plate (3) each have a closed ring (4 " , 3 ") attached to the associated connecting arm (4 ', 3') and in that the two valve plates are sealingly attached to these two
      closed rings, between the seat plates.
FR898900550A 1988-01-19 1989-01-18 Valve set for piston compressor Expired - Fee Related FR2626045B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH176/88A CH674757A5 (en) 1988-01-19 1988-01-19

Publications (2)

Publication Number Publication Date
FR2626045A1 true FR2626045A1 (en) 1989-07-21
FR2626045B1 FR2626045B1 (en) 1994-07-01

Family

ID=4180998

Family Applications (1)

Application Number Title Priority Date Filing Date
FR898900550A Expired - Fee Related FR2626045B1 (en) 1988-01-19 1989-01-18 Valve set for piston compressor

Country Status (7)

Country Link
AT (1) AT403190B (en)
BE (1) BE1001997A3 (en)
BR (1) BR8900189A (en)
CH (1) CH674757A5 (en)
FR (1) FR2626045B1 (en)
GB (1) GB2214615B (en)
IT (1) IT1228285B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2908011B1 (en) * 2014-02-18 2017-11-08 Pierburg Pump Technology GmbH Motor vehicle vacuum pump

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0210287A1 (en) * 1985-07-20 1987-02-04 DIENES WERKE FÜR MASCHINENTEILE GMBH &amp; CO KG Plate valve with concentrically fastened guide arms
GB2183013A (en) * 1985-10-31 1987-05-28 Hoerbiger Ventilwerke Ag Valve set for reciprocating compressors

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1425622C2 (en) * 1963-08-09 1975-05-07 Dienes Werke Fuer Maschinenteile Kg, 5063 Overath
GB2184521B (en) * 1985-12-21 1990-06-06 David Godfrey Williams A valve component for a frictionless guided valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0210287A1 (en) * 1985-07-20 1987-02-04 DIENES WERKE FÜR MASCHINENTEILE GMBH &amp; CO KG Plate valve with concentrically fastened guide arms
GB2183013A (en) * 1985-10-31 1987-05-28 Hoerbiger Ventilwerke Ag Valve set for reciprocating compressors

Also Published As

Publication number Publication date
BR8900189A (en) 1989-09-12
GB2214615A (en) 1989-09-06
BE1001997A3 (en) 1990-05-15
ATA589A (en) 1997-04-15
IT1228285B (en) 1991-06-07
CH674757A5 (en) 1990-07-13
GB8901169D0 (en) 1989-03-15
IT8919017D0 (en) 1989-01-04
FR2626045B1 (en) 1994-07-01
AT403190B (en) 1997-11-25
GB2214615B (en) 1992-02-26

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