DE3134976A1 - VALVE PLATE FOR COMPRESSORS - Google Patents

VALVE PLATE FOR COMPRESSORS

Info

Publication number
DE3134976A1
DE3134976A1 DE19813134976 DE3134976A DE3134976A1 DE 3134976 A1 DE3134976 A1 DE 3134976A1 DE 19813134976 DE19813134976 DE 19813134976 DE 3134976 A DE3134976 A DE 3134976A DE 3134976 A1 DE3134976 A1 DE 3134976A1
Authority
DE
Germany
Prior art keywords
recess
valve
pressure valve
valve plate
pressure
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.)
Withdrawn
Application number
DE19813134976
Other languages
German (de)
Inventor
Werner 3160 Lehrte Heger
Wolfgang Ing.(Grad.) 3015 Wennigsen Kaltenthaler
Wolfgang 3000 Hannover Lichtenberg
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.)
Wabco Westinghouse Fahrzeugbremsen GmbH
Original Assignee
Wabco Westinghouse Fahrzeugbremsen 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 Wabco Westinghouse Fahrzeugbremsen GmbH filed Critical Wabco Westinghouse Fahrzeugbremsen GmbH
Priority to DE19813134976 priority Critical patent/DE3134976A1/en
Priority to AT82107284T priority patent/ATE32122T1/en
Priority to EP82107284A priority patent/EP0077895B1/en
Priority to DE8282107284T priority patent/DE3278021D1/en
Publication of DE3134976A1 publication Critical patent/DE3134976A1/en
Withdrawn legal-status Critical Current

Links

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
    • F04B39/1066—Valve plates

Abstract

1. Valve plate for compressors, especially for reciprocating piston compressors, which has the following features : a) the valve plate is arranged between the piston cylinder and the cylinder head of the compressor ; b) the valve plate contains bores for suction and pressure valves ; c) at least one pressure valve lamina is provided on the cylinder head side of the valve plate for the control of at least one pressure valve bore ; d) on the side of the valve plate that faces the cylinder head there is arranged concentrically around the pressure valve bores a first recess in the form of an annular groove ; e) the annular land which is left between the first recess and the pressure valve bore is in the form of a valve seat for the pressure valve lamina ; f) the pressure valve lamina is secured at both its ends to the valve plate in such a manner that the pressure valve lamina is not lifted from the valve plate in places during a stroke movement ; characterised by the following features : g) there is provided at least a second recess (8) on the side of the valve plate (1) that faces the cylinder head, which second recess is connected to the first recess (6) ; h) the second recess (8) is arranged at least in the region between the first recess (6) and the means (4, 5) for securing the pressure valve lamina (3) ; i) the first recess (6) has an outside diameter which corresponds to the width of the pressure valve lamina (3).

Description

T3 4976T3 4976

Hannover, den 25.8.1981
WP-Nr. 44/81 B./GbHanover, August 25, 1981
WP no. 44/81 B./Gb

WABCO Fahrzeugbremsen GmbH, Hannover
Ventilplatte für Verdichter WABCO Fahrzeugbremsen GmbH, Hanover
Valve plate for compressor

Die Erfindung betrifft eine Ventilplatte für Verdichter, insbesondere für Hubkolbenverdichter, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a valve plate for compressors, in particular for reciprocating compressors, according to the preamble of claim 1.

Eine Ventilplatte der beschriebenen Art ist aus der Darstellung in Fig. 3 der DE-PS
15 03 424 bekannt.A valve plate of the type described is shown in FIG. 3 of DE-PS
15 03 424 known.

Beim Fördern von Druckluft durch die Druckventilbohrungen wird die auf der Ventilplatte an ihren beiden Enden gesicherte Druckventillamelle von den Bohrungen abgehoben und nimmt dabei eine bogenförmige Gestalt an. Die nach außen zu den Lamellenbefestigungen abnehmende Hubhöhe der Lamelle führt zu einer BehinderungWhen conveying compressed air through the pressure valve bores becomes the pressure valve lamella secured at both ends of the valve plate lifted from the bores and assumes an arcuate shape. The after The lifting height of the slat, which decreases on the outside in relation to the slat fastenings, leads to an obstruction

- Ij- -- Ij- -

der Druckluftabströmung in den Druckraum des Verdichters, was den Wirkungsgrad des Verdichters nachteilig beeinflussen kann.the outflow of compressed air into the pressure chamber of the compressor, which increases the efficiency of the compressor can adversely affect.

Der Erfindung liegt deshalb die Aufgabe zugrunde, bei einer Ventilplatte der eingangs genannten Art Mittel zu schaffen, welche unter Beibehaltung der beschriebenen Lamellenbefestigung ein ungehindertes Abströmen der Druckluft in den Druckraum ermöglichen.The invention is therefore based on the object, in the case of a valve plate, of the type mentioned at the beginning Kind of means to create, which while maintaining the lamellar attachment described, an unimpeded Allow the compressed air to flow out into the pressure chamber.

Diese Aufgabe wird durch die im Patentanspruch aufgeführte Erfindung gelöst.This object is achieved by the invention set out in the patent claim.

Durch die aufgezeigte Lösung in Form von Ausnehmungen der Ventilplatte, welche eine Erweiterung der Ringnuten darstellen, wird die Möglichkeit eines freien Abströmens der Druckluft in den Druckraum auch an den Stellen geschaffen, an denen die Lamelle nur einen geringen Hub ausführt.The solution shown in the form of recesses in the valve plate, which is an extension of the Represent annular grooves, is the possibility of a free flow of compressed air into the pressure chamber also created at the points where the lamella only performs a small stroke.

Ein weiterer Vorteil der erfindungsgemäßen Ventilplatte besteht darin, daß die Gefahr eines durch einen Schmierölfilm entstehenden Festklebens der Lamelle auf der Oberfläche der Ventilplatte verhindert wird, weil infolge der Ausnehmungen in der Auflagefläche Unterbrechungen entstanden sind.Another advantage of the valve plate according to the invention is that the risk of through a film of lubricating oil sticks the lamella to the surface of the valve plate is prevented because interruptions occurred as a result of the recesses in the support surface are.

In der erwähnten DE-PS 15 03 424 sind zwecks Vermeidung des beschriebenen Festklebens der Druckventillamelle auf der Ventilplatte spezielle Sackbohrungen vorgesehen. Diese speziellen Sackbohrungen ermöglichen jedoch kein ungehindertes Abströmen der Druckluft in den Druckraum.In the aforementioned DE-PS 15 03 424 are in order to avoid the sticking described Pressure valve lamella, special blind holes are provided on the valve plate. These special blind holes however, do not allow the compressed air to flow unhindered into the pressure chamber.

o . o 4 do. o 4 d

Vorteilhafte Weiterbildungen und Ausgestaltungen der Erfindung sind den Unteransprüchen zu entnehmen.Advantageous further developments and refinements of the invention can be found in the subclaims.

Die Erfindung wird nachfolgend an Hand eines Ausführungsbeispiels, welches in der Zeichnung dargestellt ist, näher erläutert.The invention is explained below using an exemplary embodiment which is shown in the drawing is shown, explained in more detail.

Es zeigen:Show it:

Fig. 1 die Draufsicht einer erfindungsgemäßen Ventilplatte mit einer Druckventillamelle, 1 shows the top view of a valve plate according to the invention with a pressure valve lamella,

Fig. 2 den Schnitt durch eine erfindungsgemäßeFig. 2 shows the section through an inventive

Ventilplatte im Bereich der Druckventilbohrungen. Valve plate in the area of the pressure valve bores.

Die mit 1 bezeichnete Ventilplatte verfügt über vier Druckventilbohrungen 2, die zwei Druckventile bilden, wobei in der Zeichnung nur eine Druckventillamelle 3 für eines der beiden Druckventile dargestellt ist. Die Befestigung der Druckventillamelle 3 erfolgt durch Zylinderstifte 4 und 5. Um die Bohrungen 2 befinden sich in konzentrischer Anordnung Ringnuten 6. Die zwischen den Bohrungen 2 und den Ringnuten 6 verbleibenden Ringstege 7 bilden die Ventilsitze für die Druckventillamellen 3. An den Seiten des geringeren Hubes der in Offenstellung des Druckventiles nach oben gewölbten Druckventillamelle 3 ist die Ventilplatte 1 mit Ausnehmungen 8, welche in Längs- und Querrichtung zur Lamelle 3 verlaufen, versehen und welche mit den Ringnuten 6 übergangslos in Verbindung stehen.The valve plate labeled 1 has four pressure valve bores 2, the two pressure valves form, in the drawing only one pressure valve lamella 3 for one of the two pressure valves is shown. The pressure valve lamella 3 is fastened by means of cylindrical pins 4 and 5. To the bores 2 there are annular grooves 6 in a concentric arrangement the annular webs 7 remaining in the bores 2 and the annular grooves 6 form the valve seats for the pressure valve lamellae 3. On the sides of the smaller stroke of the pressure valve lamella 3, which is arched upward in the open position of the pressure valve the valve plate 1 with recesses 8, which run in the longitudinal and transverse directions to the lamella 3, provided and which are seamlessly connected to the annular grooves 6.

Q 1 QQ 1 Q

U976U976

Über die Ausnehmungen 8 kann nunmehr die Druckluft hindernisfrei in den Druckraum des Verdichters ausströmen. The compressed air can now flow out unobstructed into the pressure chamber of the compressor via the recesses 8.

Die Ausnehmungen können sowohl maschinell in die
Ventilplatte eingearbeitet als auch beim Gießen
der Ventilplatte eingegossen werden.The recesses can be machined into the
Valve plate incorporated as well as during casting
the valve plate are cast.

Claims (3)

134976 -Y- Patentansprüche134976 -Y- claims 1.) Ventilplatte für Verdichter, insbesondere für Hubkolbenverdichter, welche folgende Merkmale umfaßt: 5 1.) Valve plate for compressors, especially for reciprocating compressors, which includes the following features: 5 a) Die Ventilplatte (1) ist zwischen dem Kolbenzylinder und dem Zylinderkopf des Verdichters angeordnet;a) The valve plate (1) is between the piston cylinder and the cylinder head of the compressor arranged; b) die Ventilplatte (l) enthält Bohrungen für Saug- und Druckventile;b) the valve plate (l) contains bores for suction and pressure valves; c) für die Steuerung wenigstens einer Druckventilbohrung (2) ist an der Zylinderkopfseite der Ventilplatte (1) mindestens eine Druckventillarne He (3) vorgesehen;c) for the control of at least one pressure valve bore (2) is on the cylinder head side of the Valve plate (1) at least one pressure valve He (3) provided; d) an der dem Zylinderkopf zugewandten Seite der Ventilplatte (l) ist um die Druckventilbohrungend) on the side of the valve plate (l) facing the cylinder head is around the pressure valve bores (2) eine als Ringnut ausgebildete erste Ausnehmung (6) konzentrisch angeordnet;(2) a first recess (6) designed as an annular groove is arranged concentrically; e) der zwischen der ersten Ausnehmung (6) und der Druckventilbohrung (2) verbleibende Ringsteg (7) ist als Ventilsitz für die Druckventillamelle (3) ausgebildet;e) the annular web (7) remaining between the first recess (6) and the pressure valve bore (2) is designed as a valve seat for the pressure valve lamella (3); f) die Druckventillamelle (3) ist an ihren beiden Enden auf der Ventilplatte (1) derart gesichert, daß die Druckventillamelle (3) bei einer Hubbewegung nicht von der Ventilplatte abhebt,f) the pressure valve lamella (3) is secured at both ends on the valve plate (1) in such a way that that the pressure valve lamella (3) does not lift off the valve plate during a lifting movement, gekennzeichnet durch folgende Merkmale: g) es ist wenigstens eine zweite Ausnehmung (8) an characterized by the following features: g) there is at least one second recess (8) der dem Zylinderkopf zugewandten Seite der Ventilplatte (1) vorgesehen, welche mit der ersten Ausnehmung (6) verbunden ist;the side of the valve plate (1) facing the cylinder head, which is connected to the first recess (6) is connected; h) die zweite Ausnehmung (8) ist wenigstens inh) the second recess (8) is at least in dem Bereich zwischen der ersten Ausnehmung (6) und der Befestigung (4,5) der Druckventillamelle (3) angeordnet.the area between the first recess (6) and the attachment (4,5) of the pressure valve lamella (3) arranged. 2. Ventilplatte nach Anspruch 1, gekennzeichnet durch folgende Merkmale: 2. Valve plate according to claim 1, characterized by the following features: a) Die zweite Ausnehmung (8) weist einen in Längsrichtung zur Druckventillamelle (3) verlaufenden Teil und einen in Querrichtunga) The second recess (8) has a longitudinal direction to the pressure valve lamella (3) Part and one in the transverse direction zur Druckventillamelle (3) verlaufenden Teil auf;to the pressure valve lamella (3) extending part; b) der in Längsrichtung der Druckventillamelle (3) verlaufende Teil der zweiten Ausnehmungb) that part of the second recess extending in the longitudinal direction of the pressure valve lamella (3) (8) verbindet die erste Ausnehmung (6) mit der zweiten Ausnehmung (8).(8) connects the first recess (6) with the second recess (8). 3. Ventilplatte nach einem der vorhergehenden Ansprüche, gekennzeichnet durch folgendes Merkmal: 3. Valve plate according to one of the preceding claims, characterized by the following feature: Bei zwei oder mehr Druckventillamellen sind die in Querrichtung zur Druckventillamelle (3) verlaufenden Teile der zweiten Ausnehmungen (8) miteinander verbunden.If there are two or more pressure valve lamellae, those running in the transverse direction to the pressure valve lamella (3) Parts of the second recesses (8) connected to one another.
DE19813134976 1981-09-04 1981-09-04 VALVE PLATE FOR COMPRESSORS Withdrawn DE3134976A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19813134976 DE3134976A1 (en) 1981-09-04 1981-09-04 VALVE PLATE FOR COMPRESSORS
AT82107284T ATE32122T1 (en) 1981-09-04 1982-08-11 VALVE PLATE FOR COMPRESSOR.
EP82107284A EP0077895B1 (en) 1981-09-04 1982-08-11 Valve plate for compressors
DE8282107284T DE3278021D1 (en) 1981-09-04 1982-08-11 Valve plate for compressors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813134976 DE3134976A1 (en) 1981-09-04 1981-09-04 VALVE PLATE FOR COMPRESSORS

Publications (1)

Publication Number Publication Date
DE3134976A1 true DE3134976A1 (en) 1983-03-17

Family

ID=6140820

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19813134976 Withdrawn DE3134976A1 (en) 1981-09-04 1981-09-04 VALVE PLATE FOR COMPRESSORS
DE8282107284T Expired DE3278021D1 (en) 1981-09-04 1982-08-11 Valve plate for compressors

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8282107284T Expired DE3278021D1 (en) 1981-09-04 1982-08-11 Valve plate for compressors

Country Status (3)

Country Link
EP (1) EP0077895B1 (en)
AT (1) ATE32122T1 (en)
DE (2) DE3134976A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2746455A1 (en) * 1996-03-19 1997-09-26 Toyoda Automatic Loom Works VALVE STRUCTURE IN A COMPRESSOR
DE19803860C2 (en) * 1997-02-07 2000-05-18 Zexel Corp Coolant compressor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1129784B (en) * 1957-09-04 1962-05-17 Bendix Westinghouse Automotive Automatic suction or pressure valve for compressors with an elastic closure piece
DE2451207B2 (en) * 1974-10-29 1981-02-19 Robert Bosch Gmbh, 7000 Stuttgart Valve seat plate for a reciprocating compressor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB839169A (en) * 1957-09-04 1960-06-29 Bendix Westinghouse Automotive Compressor valve structure
DE1503424C3 (en) * 1965-07-06 1980-08-21 Hoerbiger Ventilwerke Ag, Wien Valve set for reciprocating compressors
US3751005A (en) * 1971-11-30 1973-08-07 Westinghouse Electric Corp Powdered metal valve plate assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1129784B (en) * 1957-09-04 1962-05-17 Bendix Westinghouse Automotive Automatic suction or pressure valve for compressors with an elastic closure piece
DE2451207B2 (en) * 1974-10-29 1981-02-19 Robert Bosch Gmbh, 7000 Stuttgart Valve seat plate for a reciprocating compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2746455A1 (en) * 1996-03-19 1997-09-26 Toyoda Automatic Loom Works VALVE STRUCTURE IN A COMPRESSOR
DE19803860C2 (en) * 1997-02-07 2000-05-18 Zexel Corp Coolant compressor

Also Published As

Publication number Publication date
ATE32122T1 (en) 1988-02-15
DE3278021D1 (en) 1988-02-25
EP0077895A1 (en) 1983-05-04
EP0077895B1 (en) 1988-01-20

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8130 Withdrawal