DE911450C - Pump for pumping fluids with two drive pistons that form a structural body - Google Patents

Pump for pumping fluids with two drive pistons that form a structural body

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Publication number
DE911450C
DE911450C DEB16509A DEB0016509A DE911450C DE 911450 C DE911450 C DE 911450C DE B16509 A DEB16509 A DE B16509A DE B0016509 A DEB0016509 A DE B0016509A DE 911450 C DE911450 C DE 911450C
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DE
Germany
Prior art keywords
piston
double
pump
pistons
double piston
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
DEB16509A
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German (de)
Inventor
Fritz Brieger
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Individual
Original Assignee
Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to DEB16509A priority Critical patent/DE911450C/en
Application granted granted Critical
Publication of DE911450C publication Critical patent/DE911450C/en
Expired legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L27/00Distribution or expansion valve-gear peculiar to free-piston machines or engines and not provided for in F01L21/00 - F01L25/00
    • F01L27/04Delayed-action controls, e.g. of cataract or dashpot type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/02Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means
    • F01L25/04Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means by working-fluid of machine or engine, e.g. free-piston machine
    • F01L25/06Arrangements with main and auxiliary valves, at least one of them being fluid-driven
    • F01L25/066Arrangements with main and auxiliary valves, at least one of them being fluid-driven piston or piston-rod being used as auxiliary valve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B19/00Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
    • F04B19/02Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00 having movable cylinders
    • F04B19/022Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00 having movable cylinders reciprocating cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F04B9/111Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members
    • F04B9/115Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting liquid motors, each acting in one direction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F04B9/117Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers the pumping members not being mechanically connected to each other
    • F04B9/1176Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers the pumping members not being mechanically connected to each other the movement of each piston in one direction being obtained by a single-acting piston liquid motor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)

Description

Pumpe zur Förderung von Flüssigkeiten mit zwei Antriebskolben, die einen Baukörper bilden Die Erfindung bezieht sich auf eine zur Förderung von Flüssigkeiten dienende Pumpe, die in einem Zylinderkörper zwei voneinander getrennte Zylinderräume hat, in denen ein Doppelkolben mit Hohlräumen hin und 'her bewegt wird. Die Bewegung des Doppelkolbens erfolgt durch ein Kraftmedium, dessen Umsteuerung durch einen Schieber vollzogen wird.Pump for pumping liquids with two drive pistons that Form a structural body The invention relates to a device for pumping liquids Serving pump, the two separate cylinder spaces in a cylinder body has, in which a double piston with cavities is moved back and forth. The movement of the double piston is carried out by a force medium, which is reversed by a Slide is carried out.

Die Erfindung besteht darin, daß die Räume des Kraft- sowie des Fördermediums getrennt voneinander, ineinander gestaffelt sind, wodurch bei relativ langem Hub, die Gesamtlänge der Pumpe verhältnismäßig kurz geformt ist, wobei ein Eindringen das Kraftmediums in die Räume des Fördermediums ausgeschlossen ist. Weiterhin zeichnet sich die Erfindung darin, daß der Doppelkolben durch Kolbenträger schwebend, d. 1i. mit geringster Reibung in dem Zylinderkörper geführt ist. Als Kolbenträger dienen Kugeln oder Rollen. Durch dieses soll erreicht werden, daß die Wirkung des Eigengewichtes des Kolbens auf den Zylinder, welches ein ovales Ausschleifen desselben zur Folge hat, beseitigt wird. Da der Doppelkolben relativ lang ist, hat das Ausschalten des Kolbengewichtes für den Betrieb und die Lebensdauer der Pumpe besondere Bedeutung.The invention consists in the fact that the spaces of the power and the conveying medium separated from each other, staggered, whereby with a relatively long stroke, the overall length of the pump is shaped relatively short, with penetration the power medium is excluded in the spaces of the pumped medium. Continues to draw the invention is that the double piston floating by piston carrier, d. 1i. is guided with minimal friction in the cylinder body. Serve as a piston carrier Balls or rollers. This is to achieve that the effect of its own weight of the piston on the cylinder, which results in an oval grinding of the same has, is eliminated. Since the double piston is relatively long, switching off the Piston weight is of particular importance for the operation and service life of the pump.

Der schwebend geführte Doppelkolben ist als Hohlkolben ausgebildet, wobei erfindungsgemäß der Hohlraum des Kolbens durch eine Querwand in zwei Zylinderräume für das Fördermedium unterteilt ist. Die zweite Stirnwand jedes dieser beiden Hohlräume wird durch ein; in Hubrichtung unbewegliches, für die Zu- und Abführung des Fördermediums dienendes Tauchrohr gebildet. Diese Tauchrohre sitzen in den äußeren Stirnwänden des Hauptzylinderkörpers. In der Abb. i ist die Erfindung in einem Ausführungsbeispiel dargestellt; in Abb. z ist eine schematische Darstellung der Duplexlanghubpumpe ersichtlich.The floating double piston is designed as a hollow piston, according to the invention, the cavity of the piston through a transverse wall into two cylinder spaces for the pumped medium is divided. The second end wall each of these two cavities is through one; immovable in the stroke direction, for the and discharge of the conveying medium serving dip tube is formed. These dip tubes sit in the outer end walls of the main cylinder body. In Fig. I is the invention shown in one embodiment; in Fig. z is a schematic representation visible from the duplex long stroke pump.

Das Kraftmedium tritt durch den Kanal E in das Gehäuse des Umsteuersch,iebers c, der als Kolbenschieber ausgebildet ist, ein und wird über Ringnuten, die sich in der Wand des Kolbenschiebers befinden, abwechselnd in den einen oder anderen der beiden Zylinderräume R geleitet; in diesen bewegen sich die Kolben a und dl, die zu einem Doppelkolben vereinigt sind, und zwar wirkt das Kraftmedium (Preßluft oder Dampf) jeweils auf eine der beiden einander zugekehrten Flächen des Doppelkolbens. Die Teile des. Hauptzylinderkörpers, in welche das Kraftmedium nicht gelangt, stehen durch Entlüftungskanäle C mit der freien Atmosphäre in Verbindung. Durch die Kolbenringe at des Doppelkolbens sind die Zylinderräume gegeneinander abgedichtet. Wenn der eine der beiden Kolben bei seiner nach außen gerichteten Bewegung den in die Wandung des Hauptzylinderkörpers eingelassenen Kanal Z übersteuert hat, strömt das ihn; vorwärts treibende Kraftmedium durch diesen Kanal Z in das Schiebergehäuse und beaufschlagt hier die eine Stirnseite des Kolbenschiebers, so daß dieser axial gegen das Pufferglied p verschoben wird. Dadurch wird der Weg des Kraftmediums durch das Kraftmedium selbst umgesteuert, d. h. der Zufluß auf den bis dahin beaufschlagten Kolben a wird abgesperrt, und der Zufluß aus dem Kanal E auf den in seiner inneren Endlage befindlichen Kolben dI wird geöffnet. Der Doppelkolben ruht erfindungsgemäß auf Kolbenträgern en, die aus Kugeln oder Rollen bestehen. Diese Kolbenträger sind in einen die beiden Krafträume des Zylinderkörpers trennenden feststehenden Zwischenkörper g eingesetzt. Durch den Kanal B wird der Doppelkolben an der den Zwischenkörper durchsetzenden, als Gleitfläche für den Verbindungsteil des Doppelkolbens dienenden Bohrung geschmiert. Dieser Verbindungsteil des Doppelkolbens ist hohl, und durch eine Querwand ist der Hohlraum in zwei Teile getrennt. In die Hohlräume greift von der Außenseite des Hauptzylinderkörpers je ein Tauchrohr t. Diese Tauchrohre bilden mit den Zylinderdeckeln des Hauptzylinderkörpers ein Stück und sind an diesen angeschraubt. Die Tauchrohre t sind hohl und bilden erfindungsgemäß abwechselnd den Zu- und Abflußkanal für das Fördermedium.The force medium passes through channel E into the housing of the reversing valve c, which is designed as a piston valve, and is via annular grooves that are are located in the wall of the piston valve, alternately in one or the other of the two cylinder spaces R routed; pistons a and dl move in these, which are combined into a double piston, namely the force medium (compressed air or steam) in each case on one of the two mutually facing surfaces of the double piston. The parts of the main cylinder body into which the force medium does not reach are standing through ventilation ducts C in connection with the free atmosphere. Through the piston rings At the double piston, the cylinder chambers are sealed against each other. If the one of the two pistons in its outward movement into the wall of the main cylinder body has overridden channel Z, that flows into it; forward driving force medium through this channel Z into the valve body and acted upon here the one end face of the piston valve, so that it axially against the buffer member p is shifted. Thereby the path of the force medium is through the force medium itself reversed, d. H. the flow to piston a, which has been pressurized up to that point, is shut off, and the inflow from channel E to the piston located in its inner end position dI opens. According to the invention, the double piston rests on piston supports which consist of balls or rollers. These piston carriers are in one of the two weight rooms of the cylinder body separating fixed intermediate body g used. By the channel B is the double piston on which penetrates the intermediate body, as Lubricated sliding surface for the connecting part of the double piston serving bore. This connecting part of the double piston is hollow, and through a transverse wall is the Cavity separated into two parts. Into the cavities engages from the outside of the Main cylinder body each one immersion tube t. These dip tubes form with the cylinder covers of the main cylinder body and are screwed to it. The dip tubes t are hollow and according to the invention alternately form the inflow and outflow channel for the Pumped medium.

Bei der unter dem Einfluß des Kraftmittels stattfindenden Bewegung des Doppelkolbens wirkt der Hohlraum des jeweils beaufschlagten Kolbens als Druckorgan für das Fördermedium, da sich die Querwand des Doppelkolbens dem Stirnende des betreffenden Tauchrohres nähert, während in dem anderen Hohlraum gleichzeitig Fördermedium angesaugt wird. Das Stirnende jedes Tauchrohres ist mit einer Stopfbuchse k oder einer Manschette versehen, so daß weder beim Preßvorgang das Fördermittel aus dem inneren Zylinder in den äußeren Zylinder gedrückt werden noch beim Saugvorgang Luft aus denn äußeren Zylinder in den inneren Zylinder gelangen kann. Hierbei kommt das Kraftmedium keinesfalls mit der Stopfbuchse oder Manschette in Verbindung, da dieses an der inneren Seite des Doppelkolbens wirkt. Wenn der eine der beiden. Kraftkolben a, aI infolge Beaufschlagung des anderen Kolbens durch das Kraftmittel in Richtung auf den Zwischenkörper gezogen wird, so wird das zwischen dem gezogenen Kraftkolben und dem Zwischenkörper ä jeweils befindliche, von der Kraftzuflußleitung E abgesperrte Mittel durch einen Wandkanal über das Schiebergehäuse in die Auspuffleitung A ausgestoßen. Der Wandkanal zum Auspuff wird bereits vor Endstellung des Kolbens geschlossen, worauf die in diesem Zylinder sich speichernde Atmosphäre als Auffangpufferung und Vorfüllung dient.During the movement taking place under the influence of the power means of the double piston, the cavity of the piston being acted upon acts as a pressure element for the pumped medium, as the transverse wall of the double piston is aligned with the front end of the relevant Immersion tube approaches, while conveying medium is simultaneously sucked into the other cavity will. The front end of each immersion tube is fitted with a stuffing box k or a sleeve provided, so that neither during the pressing process, the conveying means from the inner cylinder Air from the outer cylinder is pressed into the outer cylinder during the suction process Cylinder can get into the inner cylinder. The force medium does not come here under any circumstances with the stuffing box or sleeve in connection, as this is on the inner side of the double piston acts. If one of the two. Power piston a, aI as a result of loading of the other piston pulled by the power means in the direction of the intermediate body is, so that between the pulled power piston and the intermediate body ä each located, from the power supply line E blocked means through a wall channel Ejected into exhaust line A via the valve housing. The wall channel for The exhaust is closed before the piston reaches its end position, which is followed by the in this The cylinder, which stores the atmosphere, serves as a catch buffer and pre-fill.

Die Langhubpumpe als Duplexpumpe mit zwei Doppelkolben und zwei Schiebern vollzieht eine reguläre Umsteuerung, indem ein Doppelkolben umgesteuert wird, indessen der andere Doppelkolben auf halber Hublänge gleitet. Die Steuerkanäle W, WI hierzu führen von der Mitte jeweils eines Antriebszylinders vor die Stirnfronten des gegenüberliegenden Schiebers. Überstreicht einer der Antriebskolben inmitten seines Laufes den Steuerkanal, so strömt das Kraftmedium durch diesen vor die Stirnfront des gegenüberliegenden Schiebers, wodurch dieser und der dazu gehörende Doppelkolben umgesteuert wird.The long stroke pump as a duplex pump with two double pistons and two vanes performs a regular reversal by reversing a double piston, however the other double piston slides halfway through the stroke length. The control channels W, WI for this lead from the middle of a drive cylinder in front of the fronts of the opposite one Slide. If one of the drive pistons sweeps over the control channel in the middle of its run, so the force medium flows through it in front of the front of the opposite one Slide, whereby this and the associated double piston is reversed.

Da beiderseits zwischen Doppelkolben und Schiebern keine mechanische Verbindung besteht, kann bei geringem Leistungsbedarf ein Doppelkolben mittels eines Dreiwegehahnes b stillgelegt werden, wobei der andere seinen Lauf fortsetzt.Since there is no mechanical on either side between the double piston and slide If there is a connection, a double piston by means of a Three-way valve b are shut down, with the other continuing its course.

Claims (4)

PATENTANSPRÜCHE: i. Pumpe zur Förderung von Flüssigkeiten mit zwei Antriebskolben, die einen Baukörper bilden, deren gegenläufige Bewegung durch das Kraftmedium erfolgt, dessen Umsteuerung durch einen beiden Kolben gemeinsamen Schieber vollzogen wird, dadurch gekennzeichnet, daß der Doppelkolben (a, aI) als Hohlkolben ausgebildet ist, wobei der Hohlraum durch eine Querwand in zwei Zylinderräume für das Fördermedium geteilt ist, deren zweite Stirnwand durch je ein in Hubrichtung unbewegliches., für die Zu- und Abführung des Fördermediums dienendes Tauchrohr (t) gebildet ist. : PATENT CLAIMS: i. Pump for pumping liquids with two drive pistons which form a structural body whose movement in opposite directions is effected by the force medium, the reversal of which is carried out by a slide common to both pistons, characterized in that the double piston (a, aI) is designed as a hollow piston, whereby the cavity is divided by a transverse wall into two cylinder spaces for the conveying medium, the second end wall of which is formed by an immersion tube (t) which is immovable in the stroke direction and serves for the supply and discharge of the conveying medium. : 2. Pumpe nach Anspruch i, dadurch gekennzeichnet, daß der Doppelkolben (a., cal) durch Kolbenträger (m) schwebend in dem Zylinderkörper geführt ist. 2. Pump according to claim i, characterized in that that the double piston (a., cal) floating in the cylinder body by piston carrier (m) is led. 3. Pumpe nach Anspruch i, dadurch gekennzeichnet, daB als Kolbenträger Kugeln oder Rollen dienen. 3. Pump according to claim i, characterized in that balls or rollers serve as piston carriers. 4. Pumpe nach Anspruch i, dadurch gekennzeichnet, daß diese als Duplexpumpe mit zwei Doppelkolben und zwei Umsteuerschiebern die Umsteuerung je eines Doppelkolbens dann vollzieht, wenn sich der andere Doppelkolben auf halber Hublänge in Bewegung befindet, wobei einer der beiden Doppelkolben stillgelegt werden kann, falls sich der Leistungsbedarf verringert. Angezogene Druckschriften: Französische Patentscharift Nr. 983 664.4. Pump according to claim i, characterized in that that this as a duplex pump with two double pistons and two reversing spools is the reversal one double piston takes place when the other double piston is halfway Stroke is in motion, with one of the two double pistons being shut down can if the power requirement decreases. Printed publications: French Patent document No. 983 664.
DEB16509A 1951-08-30 1951-08-30 Pump for pumping fluids with two drive pistons that form a structural body Expired DE911450C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB16509A DE911450C (en) 1951-08-30 1951-08-30 Pump for pumping fluids with two drive pistons that form a structural body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB16509A DE911450C (en) 1951-08-30 1951-08-30 Pump for pumping fluids with two drive pistons that form a structural body

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DE911450C true DE911450C (en) 1954-05-13

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1019563B (en) * 1956-05-07 1957-11-14 Haniel & Lueg Gmbh Hydrostatic drive for double-acting piston pumps, especially for flushing pumps in deep drilling rigs in a duplex arrangement
DE1292003B (en) * 1960-05-04 1969-04-03 Kobe Inc Liquid-operated pump with pump unit and motor valve unit separate from it
FR2284048A1 (en) * 1974-09-04 1976-04-02 Mo Aviat I HYDROPNEUMATIC PUMPING PLANT

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR983664A (en) * 1948-03-25 1951-06-26 British Industrial Plastics Double-acting differential piston hydraulic pressure lift

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR983664A (en) * 1948-03-25 1951-06-26 British Industrial Plastics Double-acting differential piston hydraulic pressure lift

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1019563B (en) * 1956-05-07 1957-11-14 Haniel & Lueg Gmbh Hydrostatic drive for double-acting piston pumps, especially for flushing pumps in deep drilling rigs in a duplex arrangement
DE1292003B (en) * 1960-05-04 1969-04-03 Kobe Inc Liquid-operated pump with pump unit and motor valve unit separate from it
FR2284048A1 (en) * 1974-09-04 1976-04-02 Mo Aviat I HYDROPNEUMATIC PUMPING PLANT

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