DE502190C - Piston for small, fast running crossheadless compressors - Google Patents

Piston for small, fast running crossheadless compressors

Info

Publication number
DE502190C
DE502190C DEK114340D DEK0114340D DE502190C DE 502190 C DE502190 C DE 502190C DE K114340 D DEK114340 D DE K114340D DE K0114340 D DEK0114340 D DE K0114340D DE 502190 C DE502190 C DE 502190C
Authority
DE
Germany
Prior art keywords
piston
crossheadless
small
compressors
fast running
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
Application number
DEK114340D
Other languages
German (de)
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.)
Knorr Bremse AG
Original Assignee
Knorr Bremse AG
Publication date
Priority to DEK114340D priority Critical patent/DE502190C/en
Application granted granted Critical
Publication of DE502190C publication Critical patent/DE502190C/en
Expired 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
    • F04B39/04Measures to avoid lubricant contaminating the pumped fluid
    • F04B39/041Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod
    • F04B39/042Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod sealing being provided on the piston

Description

Kolben für kleine, rasch laufende kreuzkopflose Kompressoren Gegenstand der Erfindung ist ein Kolben für kleine, rasch laufende kreuzkopflose Kompressoren, insbesondere für solche, die dazu bestimmt sind, eine möglichst ölfreie Druckluft zuliefern, wie sie beispielsweise iri der chemischen Industrie und zu anderen Zwecken erforderlich ist.Piston for small, fast running crossheadless compressors. Item the invention is a piston for small, fast running crossheadless compressors, especially for those who are intended to use compressed air that is as oil-free as possible such as those used in the chemical industry and for other purposes is required.

Um auch bei raschem Lauf ohne Ölschmierung auskommen zu können, ist der Kolben gemäß' der Erfindung mit Führungsringen ausgestattet, die aus Faserstoff, beispielsweise aus Vulkanfibre, hergestellt sind, das wegen seiner Zusammensetzung die Aufnahme von Starrfett gewährleistet. Diese Führungsringe dienen lediglich zur Aufnahme der bei kreuzkopflosem Betrieb auf den Kolben ausgeübten Gleitbahndrücke; es ist nicht ihre Aufgabe, einen dichten Schluß zwischen dem Kolbenkörper und der Zylinderwand zu vermitteln.In order to be able to manage without oil lubrication even when running quickly, is the piston according to the invention is equipped with guide rings made of fibrous material, for example from vulcanized fiber, because of its composition the absorption of rigid fat is guaranteed. These guide rings are only used for Recording of the sliding path pressures exerted on the piston during operation without a crosshead; it is not their job to ensure a tight fit between the piston body and the To convey cylinder wall.

Da dieser dichte Schluß die Bedingung für einen günstigen Lieferungsgrad des Kompressors ist, so werden zwischen den in der 1 ähe der Kolbenenden befindlichen Faserstoff-Führungsringen noch die üblichen Metalliderungsringe vorgesehen. Die Nuten zur Aufnahme dieser Ringe werden so tief in den Kolbenkörper eingearbeitet, daß zwischen dem inneren Umfang eines solchen Dichtungsringes und der Grundfläche der Ringnut stets ein hinreichend breiter Luftspalt verbleibt, damit diese Dichtungsringe mit Sicherheit von Gleitbahndrücken frei bleiben.Since this tight seal is the condition for a favorable degree of delivery of the compressor, are located between the 1 near the piston ends Fiber guide rings are still provided with the usual Metalliderungsringe. the Grooves to accommodate these rings are worked so deep into the piston body that that between the inner circumference of such a sealing ring and the base the ring groove always remains a sufficiently wide air gap so that these sealing rings remain free of slide pressures with certainty.

Es ist bereits bekannt, Kolbenringe aus Faserstoffen herzustellen, und zwar sind Gummizusammensetzungen (Elonite) dafür in Vorschlag gebracht worden; es ist bislang aber noch nicht der Vorschlag gemacht worden, solchen Ringen bei kreuzkopflosem Betrieb lediglich die Führung des Kolbens anzuvertrauen, d. h. sie allein dem Gleitbahndruck auszusetzen und die metallischen Dichtungsringe von dieser Aufgabe völlig zu befreien.It is already known to manufacture piston rings from fiber materials, namely rubber compositions (Elonite) have been proposed for it; so far, however, the suggestion has not been made to include such rings to only entrust the guidance of the piston to crossheadless operation, d. H. she solely to expose the sliding path pressure and the metallic sealing rings from this Completely freeing the task.

Auf der Zeichnung ist ein mit dem Kolben nach der Erfindung ausgerüsteter, rasch laufender kreuzkopfloser Kleinkompressor in einfachster schematischer Darstellung veranschaulicht.In the drawing is a equipped with the piston according to the invention, fast running crossheadless small compressor in the simplest schematic representation illustrated.

Im Zylinder a befindet sich der zur Aufnahme der Gleitbahndrücke hinreichend lang ausgeführte Kolbenkörper b. Möglichst in unmittelbarer Nähe seiner Enden sind Führungsringe c, beispielsweise aus Vulkanfibre oder einem anderen geeigneten Faserstoff, angeordnet, die ohne Spiel in den dafür vorgesehenen Nuten des Kolbens liegen. Der zwischen diesen Führungsringen befindliche Teil des Kolbens ist mit den üblichen metallischen Dichtungsringend ausgerüstet, von denen einer auf der Zeichnung dargestellt ist. Zwischen diesem und dem Grunde der Ringnut des Kolbens klafft ein verhältnismäßig breiter Spalt s. Das geschlossene Kurbelgehäuse wird bei einem derartig kleinen Kompressor mit Starrfett gefüllt, das in die aus Faserstoff gefertigten Führungsringe c eindringt und eine sparsame Schmierung sichert, ohne daß sich - wie bei Ölschmierung - die geförderte Druckluft mit Öl anzureichern vermag.In the cylinder a there is sufficient to absorb the sliding path pressures long piston bodies b. As close as possible to its ends Guide rings c, for example made of vulcanized fiber or another suitable fiber material, arranged, which lie without play in the grooves provided for this purpose in the piston. Of the between these guide rings located part of the piston is with the usual equipped with a metallic sealing ring, one of which is shown in the drawing is. Between this and the bottom of the annular groove of the piston there is a relatively large gap wide gap see the closed crankcase with such a small one Compressor filled with rigid grease, which is inserted into the guide rings made of fiber material c penetrates and ensures economical lubrication without - as with oil lubrication - is able to enrich the compressed air supplied with oil.

Claims (1)

PATENTANSPRUCH: Kolben für kleine, rasch laufende, kreuzkopflose Kompressoren, dadurch gekennzeichnet, daß neben den üblichen lediglich der Dichtung dienenden metallischen Kolbenringen die Gleitbahndrücke aufnehmende, aus Faserstoff (Vulkanfibre) hergestellte Tragringe (c) in unmittelbarer Nähe der Kolbenenden vorgesehen sind.PATENT CLAIM: Pistons for small, fast running, crossheadless compressors, characterized in that in addition to the usual only serving the seal metallic piston rings that absorb the sliding path pressures, made of fibrous material (vulcanized fiber) produced support rings (c) are provided in the immediate vicinity of the piston ends.
DEK114340D Piston for small, fast running crossheadless compressors Expired DE502190C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK114340D DE502190C (en) Piston for small, fast running crossheadless compressors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK114340D DE502190C (en) Piston for small, fast running crossheadless compressors

Publications (1)

Publication Number Publication Date
DE502190C true DE502190C (en) 1930-07-09

Family

ID=7242999

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK114340D Expired DE502190C (en) Piston for small, fast running crossheadless compressors

Country Status (1)

Country Link
DE (1) DE502190C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953223C (en) * 1951-07-20 1956-11-29 Fritz Kuphal Device for reducing the volumetric and friction losses in liquid high-pressure pumps, in particular in pumps with pistons arranged in a star shape
DE971674C (en) * 1951-12-13 1959-03-12 Albert Heidler Piston compressor with non-contact piston seal
DE3026983A1 (en) * 1979-09-06 1981-04-02 Imed Corp., San Diego, Calif. IMPROVED CASSETTE FOR CONTROLLED FLOW OF A FLUID
FR2470874A1 (en) * 1979-12-04 1981-06-12 Abg Semca Dry compressor for e.g. refrigeration plant - has reciprocating piston held out of contact with interior of compression cylinder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953223C (en) * 1951-07-20 1956-11-29 Fritz Kuphal Device for reducing the volumetric and friction losses in liquid high-pressure pumps, in particular in pumps with pistons arranged in a star shape
DE971674C (en) * 1951-12-13 1959-03-12 Albert Heidler Piston compressor with non-contact piston seal
DE3026983A1 (en) * 1979-09-06 1981-04-02 Imed Corp., San Diego, Calif. IMPROVED CASSETTE FOR CONTROLLED FLOW OF A FLUID
FR2470874A1 (en) * 1979-12-04 1981-06-12 Abg Semca Dry compressor for e.g. refrigeration plant - has reciprocating piston held out of contact with interior of compression cylinder

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