DE814430C - Fluid motor, especially for low speeds and hydraulic fluid - Google Patents

Fluid motor, especially for low speeds and hydraulic fluid

Info

Publication number
DE814430C
DE814430C DEP17548D DEP0017548D DE814430C DE 814430 C DE814430 C DE 814430C DE P17548 D DEP17548 D DE P17548D DE P0017548 D DEP0017548 D DE P0017548D DE 814430 C DE814430 C DE 814430C
Authority
DE
Germany
Prior art keywords
pistons
pressure medium
motor according
rolling elements
medium motor
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
DEP17548D
Other languages
German (de)
Inventor
Alfred Weis
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.)
Elektro Mechanik GmbH
ELMEG Elektro Mechanik GmbH
Original Assignee
Elektro Mechanik GmbH
ELMEG Elektro Mechanik 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 Elektro Mechanik GmbH, ELMEG Elektro Mechanik GmbH filed Critical Elektro Mechanik GmbH
Priority to DEP17548D priority Critical patent/DE814430C/en
Application granted granted Critical
Publication of DE814430C publication Critical patent/DE814430C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F03C1/0639—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0602—Component parts, details
    • F03C1/0605—Adaptations of pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F03C1/0644—Component parts
    • F03C1/0655—Valve means
    • F03C1/0657—Cylindrical valve means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F03C1/0644—Component parts
    • F03C1/0663—Casings, housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F03C1/0644—Component parts
    • F03C1/0668—Swash or actuated plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0678—Control
    • F03C1/0692—Control by changing the phase relationship between the actuated element and the distribution means, e.g. turning the valve plate; turning the swash plate
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/22—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/005—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 changing the phase relationship of two working pistons in one working chamber or the phase-relationship of a piston and a driven distribution member

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hydraulic Motors (AREA)

Description

Druckmittelmotor, insbesondere für niedrige Drehzahlen und hydraulische Druckmittel Druckmittelmotoren kommen in mannigfacher Ausführung, insbesondere für Steuerungszwecke, zur \nwendung. Die Forderung nach niedrigen Drehzahlen, kleinen Abmessungen und gleichmäßigem Lauf erzwingt die Benutzung mehrerer Kolben mit möglichst hohen Hubzahlen pro Umdrehung. Bei bekannten Motoren wird dieser Forderung durch eine sternförmige Anordnung der Kolben Rechnung getragen. Die Kolben stützen sich außen auf einer radial angeordneten Kurvenbahn ab, die den Kolben mehrere Doppelhübe pro Umdrehung erteilt. Der Hauptnachteil dieser Bauart besteht in der Herstellung der Kurvenbahn, die auf einer Kopierfräsmaschine gefertigt und anschließend nach einem besonderen Verfahren gehärtet werden muß. Die Erfindung vermeidet diesen Nachteil, indem an Stelle der schwierig herzustellenden Kurvenbahn einfache, drehbar gelagerte Wälzkörper, insbesondere Rollen, vorgesehen werden, gegen die sich die Kolben abstützen, wobei sie in den Lücken zwischen benachbarten Wälzkörpern durch feste oder umlaufende Anschläge abgefangen werden.Hydraulic fluid motor, especially for low speeds and hydraulic Pressure medium Pressure medium motors come in a variety of designs, especially for Control purposes, for \ nuse. The demand for low speeds, small ones Dimensions and smooth running forces the use of several pistons with as much as possible high strokes per revolution. In known engines, this requirement is through a star-shaped arrangement of the pistons was taken into account. The pistons are supported outside on a radially arranged cam track, which the piston several double strokes granted per revolution. The main disadvantage of this type is manufacturing the cam track, which is manufactured on a copy milling machine and then after must be hardened in a special process. The invention avoids this disadvantage by using simple, rotatable bearings instead of the difficult-to-manufacture cam track Rolling bodies, in particular rollers, are provided against which the pistons are supported, being in the gaps between adjacent rolling elements by fixed or rotating Attacks are intercepted.

Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung in Fig. i in einem Längsschnitt und in Fig.2 in einer Abwicklung des Zylinderringes.The drawing shows an embodiment of the invention in Fig. i in a longitudinal section and in Figure 2 in a development of the cylinder ring.

Der -Motor besteht im wesentlichen aus dem Zylinderring io mit den axialen Zylindern ii und den Kolben 12, 13, ferner aus dem zentrisch zum Ring io liegenden Steuerzapfen 14, den Abstützrollen 15, 16, der Abtriebswelle 17 und dem Gehäuse 18. In jedem der einzelnen Zylinder i i sind je zwei gegenläufige Kolben 12 und 13 vorgesehen, deren einander zugewandte Enden den Arbeitsraum bilden, während sich die abgewandten Enden mittels in Pfannen liegender Kugeln 19, 20 gegen die Rollen 15, 16 abstützen. Die Druckfedern 21 dienen dazu, die gegenläufigen Kolben 12, 13 auseinanderzudrücken. Die Rollen 15, 16 sind auf radialen Zapfen gelagert, die ihrerseits im festen Gehäuse 18 befestigt sind. Der mit der Abtriebswelle 17 gekuppelte Zylinderring to läuft auf dem stillstehenden Zapfen 14, der entsprechend der Anzahl der sich gegenüberliegenden Rollenpaare 15, 16 je einen Zufluß- und einen Abflußkanal 22, 23 für das Druckmittel aufweist. Diese Kanäle 22, 23 werden an ihren rechten Enden durch je einen ringförmigen Sammelkanal 24, 25 verbunden. 26 und 27 sind die Anschlüsse für die Druckmittelleitungen. Am Zapfenumfang werden die Kanäle 22, 23 durch eine gleichfalls fest stehende Hülse 28 abgedeckt. Durch radiale Bohrungen 29 dieser Hülse 28 werden die Kanäle 22, 23 mit den Zufluß- bzw. Abflußöffnungen 3o der Zylinder 11 verbunden. 31 und 32 sind Anschlagringe, die die Kolben 12, 13 abfangen, sobald ihre Außenenden in die Lücken zwischen den benachbarten Abstützrollen 15, 16 gelangen.The engine consists essentially of the cylinder ring io with the axial cylinders ii and the piston 12, 13, furthermore from the centric to the ring io lying control pin 14, the support rollers 15, 16, the output shaft 17 and the Housing 18. In each of the individual cylinders i i there are two pistons rotating in opposite directions 12 and 13 provided, the mutually facing ends of which form the working space, while the ends facing away from each other by means of balls 19, 20 lying in pans the Support rollers 15, 16. The compression springs 21 serve the purpose of the pistons rotating in opposite directions 12, 13 to push apart. The rollers 15, 16 are mounted on radial journals, which in turn are fastened in the fixed housing 18. The one with the output shaft 17 coupled cylinder ring to runs on the stationary pin 14, which accordingly the number of opposing pairs of rollers 15, 16 each one inflow and one Has discharge channel 22, 23 for the pressure medium. These channels 22, 23 are at their right ends each connected by an annular collecting channel 24, 25. 26 and 27 are the connections for the pressure medium lines. The channels are on the circumference of the journal 22, 23 covered by a likewise stationary sleeve 28. Through radial holes 29 of this sleeve 28 are the channels 22, 23 with the inflow and outflow openings 3o the cylinder 11 connected. 31 and 32 are stop rings that the pistons 12, 13 as soon as their outer ends are in the gaps between the adjacent support rollers 15, 16 arrive.

In Fig. 2 sind mit p, o, q die Leitbahnen bezeichnet, die die Abstützpunkte der Kolbenkugeln 19, 20 während des Umlaufs des Zylinderringes to beschreiben. In der angegebenen Bewegungsrichtung sind die Arbeitsräume der Zylinder 11 während der Strecke o bis q mit den Zuflußkanälen verbunden. Hierbei entsteht das dargestellte Kräftediagramm. Die gesamten Tangentialkräfte ergeben geometrisch addiert und mit dem entsprechenden Hebelarm multipliziert das nutzbare Drehmoment an der Abtriebswelle 17. Ist z die Anzahl der Rollen 15, 16 und ya die der Kolben 12, 13, so ist die Anzahl der Arbeitspiele während einer Umdrehung Damit ist der Winkel einer Arbeitsperiode Versetzt man die gegenüberliegenden Rollen 15, 16 um das Maß s, so daß dies einer Versetzung um den Winkel gleichkommt, so erhält man eine symmetrische Verdoppelung der Arbeitsspiele.In FIG. 2, p, o, q denote the interconnects which describe the support points of the piston balls 19, 20 during the revolution of the cylinder ring to. In the specified direction of movement, the working spaces of the cylinders 11 are connected to the inflow channels during the distance o to q. This creates the force diagram shown. The total tangential forces result geometrically added and multiplied by the corresponding lever arm, the usable torque on the output shaft 17. If z is the number of rollers 15, 16 and ya is the number of pistons 12, 13, then is the number of work cycles during one revolution This is the angle of a working period If you offset the opposite rollers 15, 16 by the dimension s, so that this is an offset by the angle equals, one obtains a symmetrical doubling of the work cycles.

In der angegebenen Ausführung kann der Motor auch als Pumpe arbeiten, da während der Saugperiode die Druckfedern 21 dafür sorgen, daß die Kolben 12, 13 nach außen gedrückt werden. Die Welle 17 wird dann zur Antriebswelle. An Stelle der vorgesehenen Axialanordnung der Zylinder 11 und der Kolben 12, 13 kann auch eine Sternanordnung derselben gewählt werden. Die Lagerzapfen der Rollen 15, 16 werden dann nicht mehr radial, sondern parallelachsig und konzentrisch zur Welle 17 verlaufen. Abweichend von der gezeigten Bauart kann ferner der Zylinderring to mit den Zylindern 11 und den Kolben 12, 13 fest stehen und statt dessen der Lagerkörper der Rollen 15, 16 umlaufen. Die Antriebswelle 17 wäre dann mit dem Lagerkörper zu verbinden. Für den Steuerzapfen 14. kann eine Verstellvorrichtung vorgesehen sein, rrrn zwecks Mengen- und damit Drehzahlreglung und gegebenenfalls zur Drehrichtungsänderung die Steuerkanäle willkürlich verdrehen zu können. Zum gleichen Zweck kann die Möglichkeit vorgesehen werden, das Versetzen der Rollen 15, 16 gegeneinander, siehe den Abstands in Fig. 2, willkürlich zu gestalten. Zwischen die Kolbenkugeln 19, 2o und die Rollen 15, 16 kann gegebenenfalls ein elastisches Band gelegt werden, das in den Lücken zwischen den benachbarten Rollen die Kolben elastisch abfängt. Das Band wird dabei in etwa eine Kurvenform annehmen, die ähnlich der Bahn p, o, q der Fig.2 verläuft. Die Endanschläge können dann unter Umständen wegfallen. Ein weiteres Mittel, um das harte Aufschlagen der Kolben auf die Rollen und die Anschläge zu verhindern, kann darin bestehen, daß kurz vor Beendigung des Druckhubes der Kolben die Arbeitsräume der Zylinder mit einem Unterdruckraum verbunden werden. Statt dessen oder zusätzlich hierzu kann auch der Gehäuseraum mit geringem Überdruck versehen werden.In the specified embodiment, the motor can also work as a pump, since the compression springs 21 ensure that the pistons 12, 13 are pressed outwards during the suction period. The shaft 17 then becomes the drive shaft. Instead of the intended axial arrangement of the cylinders 11 and the pistons 12, 13, a star arrangement of the same can also be selected. The bearing journals of the rollers 15, 16 will then no longer run radially, but rather with a parallel axis and concentric to the shaft 17. In a departure from the design shown, the cylinder ring to with the cylinders 11 and the pistons 12, 13 can also be stationary and, instead, the bearing body of the rollers 15, 16 can rotate. The drive shaft 17 would then have to be connected to the bearing body. An adjusting device can be provided for the control pin 14 so that the control channels can be rotated arbitrarily for the purpose of volume and thus speed control and, if necessary, to change the direction of rotation. For the same purpose, the possibility can be provided for the displacement of the rollers 15, 16 relative to one another, see the spacing in FIG. 2, to be arbitrary. If necessary, an elastic band can be placed between the piston balls 19, 20 and the rollers 15, 16, which elastically intercepts the piston in the gaps between the adjacent rollers. The tape will assume a curve shape which is similar to the path p, o, q of FIG. The end stops can then be omitted under certain circumstances. Another means of preventing the pistons from hitting the rollers and the stops hard can consist in connecting the working spaces of the cylinders to a vacuum space shortly before the end of the pressure stroke of the pistons. Instead of this or in addition to this, the housing space can also be provided with a slight excess pressure.

Claims (12)

PATENT A\SPItC 1:11I:: 1. Druckmittelmotor, insbesondere für niedrige Drehzahlen und hydraulische Druckmittel, mit mehreren sich auf einer Leitbahn abstützenden Kolben, dadurch gekennzeichnet, daß sich die Kolben an drehbar gelagerten Wälzkörpern, insbesondere Rollen, abstützen, wobei die Kolben in den Lücken zwischen den benachbarten Wälzkörpern durch feste oder umlaufende Anschläge abgefangen werden. PATENT A \ SPItC 1: 11I :: 1. Pressure medium motor, especially for low speeds and hydraulic pressure medium, with several pistons supported on a guide track, characterized in that the pistons are supported on rotatably mounted rolling elements, in particular rollers, the pistons be caught in the gaps between the adjacent rolling elements by fixed or circumferential stops. 2. Druckmittelmotor nach Anspruch 1, dadurch gekennzeichnet, daß das Abstützen der Kolben auf den Wälzkörpern unter Zwischenschaltung von Kugeln erfolgt, die in Pfannen der Kolbenenden gelagert sind. 2. Pressure medium motor according to claim 1, characterized in that the supporting of the Pistons on the rolling elements are carried out with the interposition of balls, which are in pans the piston ends are stored. 3. Druckmittelmotor nach Anspruch 1, dadurch gekennzeichnet, daß die Kolben parallelachsig und konzentrisch zur Abtriebswelle liegen, während die Lagerzapfen der die Kolben abstützenden Wälzkörper sternförmig zur Welle verlaufen, oder daß umgekehrt die Kolben sternförmig zur Abtriebswelle liegen, während die Lagerzapfen der die Kolben abstützenden Wälzkörper parallelachsig und konzentrisch zur Welle verlaufen. 3. Pressure medium motor according to claim 1, characterized in that that the pistons are parallel and concentric to the output shaft, while the bearing journals of the rolling elements supporting the pistons run in a star shape to the shaft, or that, conversely, the pistons are in a star shape to the output shaft, while the Bearing journals of the rolling elements supporting the piston with parallel axes and concentric run to the wave. 4. Druckmittelmotor nach Anspruch 1, dadurch gekennzeichnet, daß die Zylinder der Kolben umlaufen und die Lager der Wälzkörper fest stehen oder daß umgekehrt die Zylinder der Kolben fest stehen und die Lager der Wälzkörper umlaufen. 4. Pressure medium motor according to claim 1, characterized in that that the cylinders of the pistons rotate and the bearings of the rolling elements are stationary or that, conversely, the cylinders of the pistons are stationary and the bearings of the rolling elements rotate. 5. Druckmittelmotor nach Anspruch 1, dadurch gekennzeichnet, daß die Kolben in einem Ring angeordnet sind, der einen die Zufluß- und Abflußkanäle aufweisenden Steuerzapfen konzentrisch umgibt. 5. Pressure medium motor according to claim 1, characterized in that the pistons in one Ring are arranged, the one having the inflow and outflow channels having control pin surrounds concentrically. 6. Druckmittelmotor nach Anspruch 5, dadurch gekennzeichnet, daß der Steuerzapfen zur Mengen- und damit Drehzahlregelung und gegebenenfalls zur Drehrichtungsänderung willkürlich einstellbar ist. 6. Pressure medium motor according to claim 5, characterized in that that the control pin for quantity and thus speed control and, if necessary, for Change of direction of rotation is arbitrarily adjustable. 7. Druckmittelmotor nach Anspruch 1, dadurch gekennzeichnet, daß in jedem Zylinder zwei gegenläufige Kolben vorgesehen sind, die mit den einander zugewandten Enden den Arbeitsraum begrenzen und mit den voneinander abgewandten Enden gegen je ein System von drehbar gelagerten Wälzkörpern abgestützt sind. B. 7. Pressure medium motor according to claim 1, characterized in that two opposing pistons are provided in each cylinder are the limit the working space with the ends facing each other and with the ends facing away from each other against a system of rotatably mounted Rolling elements are supported. B. Druckmittelmotor nach Anspruch 7, dadurch gekennzeichnet, daß die beiden gegenläufigen Kolben durch Druckfedern gegeneinander abgestützt sind. g. Pressure medium motor according to Claim 7, characterized in that that the two opposing pistons are supported against one another by compression springs. G. Druckmittelmotor nach Anspruch 7, dadurch gekennzeichnet, daß die den gegenläufigen Kolben eines Zylinders zugeordneten Wälzkörper in der Drehrichtung der Zylinder bzw. der Wälzkörperlager gegeneinander versetzt sind, und zwar vorzugsweise um den halben Winkel eines Arbeitsspiels. io. Pressure medium motor according to Claim 7, characterized in that the counter-rotating Piston of a cylinder associated with rolling elements in the direction of rotation of the cylinder or the rolling element bearings are offset from one another, preferably by the half angle of a work cycle. ok Druckmittelmotor nach Anspruch 9, dadurch gekennzeichnet, daß die Winkellage der einander zugeordneten Wälzkörper zur Mengen-und damit Drehzahlreglung willkürlich einstellbar ist. i i. Pressure medium motor according to claim 9, characterized characterized in that the angular position of the rolling elements assigned to one another to the quantity and so that speed control can be set arbitrarily. i i. Druckmittelmotor nach Anspruch i, dadurch gekennzeichnet, daß zwischen den Kolbenenden und dem diese abstützenden Wälzkörper ein elastisches Band vorgesehen ist, das in den Lücken zwischen benachbarten Wälzkörpern die Kolben elastisch abfängt. Pressure medium motor according to claim i, characterized in that between the piston ends and the one supporting them Rolling body an elastic band is provided, which in the gaps between adjacent Rolling bodies elastically intercepts the piston. 12. Druckmittelmotor nach Anspruch i, dadurch gekennzeichnet, daß kurz vor Beendigung des Druckhubes der Kolben die Arbeitsräume der Zylinder mit einem Unterdruckraum und/ oder daß die umlaufenden Motorteile umschließende feste Gehäuse mit einem überdruckraum verbunden werden.12. Pressure medium motor according to claim i, characterized in that shortly before the end of the pressure stroke of the piston, the working spaces the cylinder with a vacuum chamber and / or that enclosing the rotating engine parts fixed housing can be connected to an overpressure chamber.
DEP17548D 1948-10-09 1948-10-09 Fluid motor, especially for low speeds and hydraulic fluid Expired DE814430C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP17548D DE814430C (en) 1948-10-09 1948-10-09 Fluid motor, especially for low speeds and hydraulic fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP17548D DE814430C (en) 1948-10-09 1948-10-09 Fluid motor, especially for low speeds and hydraulic fluid

Publications (1)

Publication Number Publication Date
DE814430C true DE814430C (en) 1951-09-24

Family

ID=7366599

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP17548D Expired DE814430C (en) 1948-10-09 1948-10-09 Fluid motor, especially for low speeds and hydraulic fluid

Country Status (1)

Country Link
DE (1) DE814430C (en)

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