EP1910675B1 - Engine - Google Patents

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Publication number
EP1910675B1
EP1910675B1 EP06762815A EP06762815A EP1910675B1 EP 1910675 B1 EP1910675 B1 EP 1910675B1 EP 06762815 A EP06762815 A EP 06762815A EP 06762815 A EP06762815 A EP 06762815A EP 1910675 B1 EP1910675 B1 EP 1910675B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
displacer
drive unit
unit according
pistonless
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.)
Not-in-force
Application number
EP06762815A
Other languages
German (de)
French (fr)
Other versions
EP1910675A1 (en
Inventor
Robert Adler
Georg Siebert
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.)
Linde GmbH
Original Assignee
Linde GmbH
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Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of EP1910675A1 publication Critical patent/EP1910675A1/en
Application granted granted Critical
Publication of EP1910675B1 publication Critical patent/EP1910675B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
    • F04F1/06—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped
    • F04F1/10—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped of multiple type, e.g. with two or more units in parallel
    • 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
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/04—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B27/06—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
    • F04B27/0606—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary having cylinders in star- or fan-arrangement, the connection of the pistons with an actuating element being at the outer ends of the cylinders
    • F04B27/0612—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary having cylinders in star- or fan-arrangement, the connection of the pistons with an actuating element being at the outer ends of the cylinders rotary cylinder block
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0895—Component parts, e.g. sealings; Manufacturing or assembly thereof driving means
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/1045—Cylinders
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/1054—Actuating elements
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036—Component parts, details, e.g. sealings, lubrication
    • F04B27/1081—Casings, housings
    • 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
    • F04B39/0005—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 adaptations of pistons
    • F04B39/0011—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 adaptations of pistons liquid 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/141—Intermediate liquid piston between the driving piston and the pumped liquid
    • 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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
    • F04B15/08—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
    • F04B2015/081—Liquefied gases
    • F04B2015/0822—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/103—Purpose of the control system to affect the output of the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/103—Purpose of the control system to affect the output of the engine
    • F05B2270/1032—Torque

Definitions

  • the invention relates to an engine with at least one displacement cylinder, in which a liquid, in particular an ionic liquid, is arranged and which can be brought into communication with an inlet channel and an outlet channel for medium, wherein the liquid is in operative connection with a displacement device.
  • a liquid in particular an ionic liquid
  • Such engines are used for example as a compressor for compressing gaseous media.
  • the medium is in this case displaced by means of the liquid in the displacement cylinder, whereby such engines are referred to as piston-free compressor.
  • the liquid an ionic liquid can be used.
  • liquids with a low vapor pressure or liquids with a low gas solubility Such liquids have in common that they do not dissolve in the medium and are separated from the medium residue-free, so that the compressed medium has a high purity.
  • a generic, designed as a compressor for gaseous media engine is from the US Pat. No. 6,652,243 B2 known.
  • the liquid in the displacer cylinder communicates with a pump, and to control the inflow and outflow of the liquid, a control valve is provided which is controlled in response to the level of liquid in the displacer cylinder detected by means of electronic displacement sensing systems.
  • the displacer cylinders are preferably arranged vertically to assist the outflow of liquid from the displacer cylinder by gravity.
  • the liquid column can not be accelerated above the acceleration of gravity, so that the cycle speed of the compressor is limited by the gravitational acceleration.
  • Such compressors have a large space requirement and a limited displacement.
  • the present invention has for its object to provide an engine of the type mentioned is available, which has a high displacement with low space requirement.
  • the displacer cylinder is arranged inclined in a rotatably mounted about a rotation axis cylinder drum to the axis of rotation of the cylinder drum.
  • the displacer cylinder is formed in a cylinder drum rotating about the rotation axis, wherein the displacer cylinder and thus the longitudinal axis of the displacer cylinder is inclined to the axis of rotation of the cylinder drum.
  • the achievable accelerations of the liquid are higher than the gravitational acceleration, so that the liquid column can be moved in an engine according to the invention over a prior art engine at a higher speed and thus a high cycle speed can be achieved.
  • This makes it possible to provide a high displacement with a small space requirement of the engine.
  • only a small amount of liquid, in particular ionic liquid is required, resulting in low production costs of an engine according to the invention.
  • the displacer cylinder is arranged perpendicular to the axis of rotation of the cylinder drum. This results in a high centrifugal force, whereby a high displacement can be provided with a small space requirement of the engine.
  • a simple production of the displacer cylinder can be achieved if the displacer cylinder is designed according to a preferred embodiment of the invention as a radial bore in the cylinder drum.
  • a control mirror is provided for controlling the connection of the positive displacement cylinder with the inlet channel and the outlet channel.
  • a Control mirror can be controlled in a simple manner, the connection of the arranged in the rotating cylinder drum displacement cylinder with the inlet channel and the outlet channel.
  • the cylinder drum is supported in the axial direction of the control mirror, which is arranged on a housing.
  • the cylinder drum is particularly advantageous with a drive shaft in operative connection, whereby a drive or an output of the engine can be easily formed.
  • the displacer cylinder is provided with a cooling device, in particular an internal cooling, an isothermal compression can be achieved in an engine operated as a compressor or an isothermal expansion in an engine operated as an engine.
  • a cooling device for example, cooling ribs can be arranged in the displacement cylinder.
  • the displacer device is designed as an axial piston machine, wherein each displacer cylinder is in communication with a cylinder chamber of the axial piston machine.
  • an axial piston machine which has a rotating cylinder block in which the cylinder chambers are formed, a simple structure and a small installation space requirement for the engine can be achieved in conjunction with the cylinder drum having the displacement cylinder.
  • the axial piston machine is designed as a swash plate machine with a swash plate, in particular an adjustable swash plate.
  • a swash plate machine which can be adjusted in the delivery volume or displacement volume, the swashplate can be swiveled by pivoting the displacement of the engine and the speed of the cylinder drum provided with the Verdrängerzylindem be changed in a simple manner. In this way it can be ensured in a simple manner that caused by the rotation of the displacer cylinder and thus the centrifugal forces acceleration of the liquid column is greater than the generated by the axial piston sinusoidal acceleration of the liquid column and thus the engine is in equilibrium.
  • the cylinder block of the axial piston machine is rotationally synchronously coupled with the cylindrical drum accommodating the displacement cylinders.
  • a safe and rotationally synchronized connection between the arranged in the cylinder block of the axial piston cylinder chambers and the Verdrängerzylindem the cylinder drum can be achieved in a simple manner.
  • the cylinder block of the axial piston machine and the cylinder cylinder accommodating the displacer cylinders are designed as a common cylinder drum, an integration of the displacer cylinders into the cylinder block of the axial piston machine can be achieved and thus an engine with a low number of parts, low space requirement and thus low production costs Will be provided.
  • the cylinder drum and the displacement device are arranged in a common housing.
  • the engine according to the invention can be designed according to an advantageous embodiment as a compressor for compressing a gaseous medium, in particular of hydrogen.
  • a piston-less compressor according to the invention in which the medium is compressed by the pumped axial piston machine by the liquid conveyed by the axial piston machine, a high compressor performance can be achieved with low production costs and high purity of the compressed medium with low space requirement.
  • the engine according to the invention can also be designed as a drive machine for tapping a torque.
  • the drive takes place here via the medium, wherein by means of the liquid driven and thus operated as a motor axial piston machine, a torque is generated, which can be tapped via the cylinder drum and the drive shaft.
  • the radial arrangement of the displacer cylinder according to the invention makes it possible to produce a high displacement capacity with a small space requirement.
  • the figure shows an inventive engine 1 in a longitudinal section.
  • a drive shaft 3 is rotatably mounted about a rotation axis 4.
  • a cylinder drum 5 is rotatably coupled, in which a plurality of displacement cylinders 6 are formed.
  • the displacement cylinder 6 are in this case designed as arranged in the cylinder drum 5 radial bores 14 and arranged in a star shape about the rotation axis 4, wherein the longitudinal axis 7 of the displacer 6 is perpendicular to the axis of rotation 4 of the drive shaft 3 and thus the cylinder drum 5.
  • the displacer cylinder 6 are in the radially inner region in each case with a connecting channel 8 in connection, which is in operative connection with a disc-shaped control mirror 9, wherein by means of the control mirror 9, the connection of the displacer 6 with an inlet channel 10 and a flow channel 11 is controllable.
  • the cylinder drum 5 is in this case supported in the axial direction on the control mirror 9, which is arranged on a housing cover 12 attached to the housing 2.
  • liquid 15 in particular ionic liquid is arranged.
  • Each displacer cylinder 6 is connected by means of a connecting channel 13 with a cylinder chamber 16 of a designed as axial piston machine in swash plate design hydraulic displacement device 17 in connection.
  • the displacer device 17 embodied as an axial piston machine has a Cylinder block 18 which is arranged coaxially with the cylinder drum 5 and rotatably connected to the cylinder drum 5 and the drive shaft 3. It is also possible to form the cylinder block 18 and the cylinder drum 5 as a common and thus one-piece cylinder drum.
  • the cylinder chambers 16 of the axial piston machine are formed by longitudinal bores 20 concentrically arranged in the cylinder block 18, in each of which a piston 21 is arranged to be longitudinally displaceable.
  • the pistons 21 are supported by means of a respective sliding shoe 22 on a swash plate 23. Between piston 21 and shoe 22, a spherical Gleitschuhgelenk is formed.
  • the axial piston machine is designed as an axial piston machine which can be adjusted in the displacement volume, wherein the swashplate 23 is pivotally mounted on the housing 2 and can be tilted relative to the axis of rotation 4 by means of an adjusting device which is no longer shown.
  • the axial piston machine it is also possible to form the axial piston machine with a fixed displacement volume, wherein the swash plate can be formed directly on the housing 2.
  • the cylinder drum 5 and the displacement device 17 are arranged in the common housing.
  • the cylinder drum 5 and the cylinder block 18 are driven via the drive shaft 3.
  • the axial piston machine operates as a pump and delivers liquid 15 from the cylinder chambers 16 into the displacer cylinder 6, whereby the medium flowing in via the inlet channel 10 into the displacer cylinder 6 is compressed by the liquid 15 and conveyed into the outlet channel 11.
  • operation of the engine 1 acts due to the radial arrangement of the displacer 6 by the rotation of the cylinder drum 5 on the liquid 15 centrifugal force, which accelerates the liquid, whereby the liquid column can be moved at high speed and thus the engine 1 at a high speed and Thus, a high cycle speed can be operated.
  • the engine according to the invention can thus be reduced compared to generic compressors at the same capacity in the space, with at low space requirement, a high flow rate can be achieved with high efficiency.
  • pressurized medium is supplied via the inlet channel 10 to the displacer cylinder 6.
  • the piston 21 are acted upon, wherein the axial piston machine is operated as a motor and a rotational movement of the cylinder drum 5 and the cylinder block 18 is generated, whereby a torque on the drive shaft 3 can be tapped.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Reciprocating Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

An engine having at least one displacer cylinder in which a liquid, in particular an ionic liquid, is arranged and which can be connected to a feed passage and a discharge passage for a medium, is disclosed. The liquid is operatively connected to a displacer device. The displacer cylinder is arranged in a cylindrical drum, rotatably mounted about an axis of rotation, at an angle to the axis of rotation of the cylindrical drum. In an embodiment, the displacer cylinder is arranged perpendicularly to the axis of rotation of the cylindrical drum, and the displacer cylinder is designed as a radial bore arranged in the cylindrical drum.

Description

Die Erfindung betrifft ein Triebwerk mit zumindest einem Verdrängerzylinder, in dem eine Flüssigkeit, insbesondere einer ionischen Flüssigkeit, angeordnet ist und der mit einem Zulaufkanal sowie einem Ablaufkanal für Medium in Verbindung bringbar ist, wobei die Flüssigkeit mit einer Verdrängereinrichtung in Wirkverbindung steht.The invention relates to an engine with at least one displacement cylinder, in which a liquid, in particular an ionic liquid, is arranged and which can be brought into communication with an inlet channel and an outlet channel for medium, wherein the liquid is in operative connection with a displacement device.

Derartige Triebwerke werden beispielsweise als Verdichter zum Verdichten von gasförmigen Medien eingesetzt. Das Medium wird hierbei mittels der Flüssigkeit in dem Verdrängerzylinder verdrängt, wodurch derartige Triebwerke als kolbenlose Verdichter bezeichnet werden. Als Flüssigkeit kann eine ionische Flüssigkeit verwendet werden. Es ist jedoch ebenfalls möglich, Flüssigkeiten mit einem niedrigen Dampfdruck oder Flüssigkeiten mit einer geringen Gaslöslichkeit zu verwenden. Derartigen Flüssigkeiten ist gemeinsam, dass sich diese nicht in dem Medium lösen und von dem Medium rückstandfrei abtrennbar sind, so dass das verdichtete Medium eine hohe Reinheit aufweist.Such engines are used for example as a compressor for compressing gaseous media. The medium is in this case displaced by means of the liquid in the displacement cylinder, whereby such engines are referred to as piston-free compressor. As the liquid, an ionic liquid can be used. However, it is also possible to use liquids with a low vapor pressure or liquids with a low gas solubility. Such liquids have in common that they do not dissolve in the medium and are separated from the medium residue-free, so that the compressed medium has a high purity.

Ein gattungsgemäßes, als Verdichter für gasförmige Medien ausgebildetes Triebwerk ist aus der US 6 652 243 B2 bekannt. Bei diesem kolbenlosen Verdichter steht die Flüssigkeit in den Verdrängerzylindem mit einer Pumpe in Verbindung, wobei zur Steuerung des Zuflusses und Abflusses der Flüssigkeit eine Steuerventil vorgesehen ist, das in Abhängigkeit von dem Flüssigkeitsstand in den Verdrängerzylindem, der mittels elektronischer Wegmesssysteme erfasst wird, gesteuert ist. Die Verdrängerzylinder sind bevorzugt vertikal angeordnet, um den Abfluss von Flüssigkeit aus dem Verdrängerzylinder durch die Schwerkraft zu unterstützen. Bei einem derartigen Verdichter kann die Flüssigkeitssäule nicht über die Erdbeschleunigung beschleunigt werden, so dass die Zyklusgeschwindigkeit des Verdichters durch die Erdbeschleunigung begrenzt ist. Derartige Verdichter weisen einen großen Bauraumbedarf und eine begrenzte Verdrängerleistung auf. Zudem ergibt sich durch die elektronischen Wegemesssysteme in hoher Bauaufwand.A generic, designed as a compressor for gaseous media engine is from the US Pat. No. 6,652,243 B2 known. In this reciprocating compressor, the liquid in the displacer cylinder communicates with a pump, and to control the inflow and outflow of the liquid, a control valve is provided which is controlled in response to the level of liquid in the displacer cylinder detected by means of electronic displacement sensing systems. The displacer cylinders are preferably arranged vertically to assist the outflow of liquid from the displacer cylinder by gravity. In such a compressor, the liquid column can not be accelerated above the acceleration of gravity, so that the cycle speed of the compressor is limited by the gravitational acceleration. Such compressors have a large space requirement and a limited displacement. In addition, results from the electronic Wegemesssysteme in high construction costs.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Triebwerk der eingangs genannten Gattung zur Verfügung zu stellen, das bei geringem Bauraumbedarf eine hohe Verdrängerleistung aufweist.The present invention has for its object to provide an engine of the type mentioned is available, which has a high displacement with low space requirement.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Verdrängerzylinder in einer um eine Drehachse drehbar gelagerten Zylindertrommel geneigt zur Drehachse der Zylindertrommel angeordnet ist. Erfindungsgemäß wird somit der Verdrängerzylinder in einer um die Drehachse rotierenden Zylindertrommel ausgebildet, wobei der Verdrängerzylinder und somit die Längsachse des Verdrängerzylinders zur Rotationsachse der Zylindertrommel geneigt ist. Durch die Rotation der Zylindertrommel und somit der Verdrängerzylinder wird erzielt, dass auf die in den Verdrängerzylindem befindliche Flüssigkeit eine von der Drehzahl der Zylindertrommel abhängige Fliehkraft einwirkt, die die Flüssigkeit beschleunigt. Die hierbei erzielbaren Beschleunigungen der Flüssigkeit sind höher als die Erdbeschleunigung, so dass die Flüssigkeitssäule bei einer erfindungsgemäßen Triebwerk gegenüber einem Triebwerk des Standes der Technik mit einer höheren Geschwindigkeit bewegt werden kann und somit eine hohe Zyklusgeschwindigkeit erzielt werden kann. Hierdurch ist es möglich, bei geringem Bauraumbedarf des Triebwerks eine hohe Verdrängerleistung zur Verfügung zu stellen. Zudem ist bei einem erfindungsgemäßen Triebwerk lediglich eine geringe Flüssigkeitsmenge an insbesondere ionischer Flüssigkeit erforderlich, wodurch sich geringe Herstellkosten eines erfindungsgemäßen Triebwerks ergeben.This object is achieved in that the displacer cylinder is arranged inclined in a rotatably mounted about a rotation axis cylinder drum to the axis of rotation of the cylinder drum. According to the invention, therefore, the displacer cylinder is formed in a cylinder drum rotating about the rotation axis, wherein the displacer cylinder and thus the longitudinal axis of the displacer cylinder is inclined to the axis of rotation of the cylinder drum. As a result of the rotation of the cylinder drum and thus of the displacer cylinder, it is achieved that a centrifugal force dependent on the rotational speed of the cylinder drum acts on the liquid in the displacer cylinder, which accelerates the liquid. The achievable accelerations of the liquid are higher than the gravitational acceleration, so that the liquid column can be moved in an engine according to the invention over a prior art engine at a higher speed and thus a high cycle speed can be achieved. This makes it possible to provide a high displacement with a small space requirement of the engine. In addition, in an engine according to the invention only a small amount of liquid, in particular ionic liquid is required, resulting in low production costs of an engine according to the invention.

Besondere Vorteile ergeben sich, wenn gemäß einer bevorzugten Ausführungsform der Erfindung der Verdrängerzylinder senkrecht zur Drehachse der Zylindertrommel angeordnet ist. Hierdurch ergibt sich eine hohe Fliehkraft, wodurch bei geringem Bauraumbedarf des Triebwerks eine hohe Verdrängerleistung zur Verfügung gestellt werden kann.Particular advantages arise when, according to a preferred embodiment of the invention, the displacer cylinder is arranged perpendicular to the axis of rotation of the cylinder drum. This results in a high centrifugal force, whereby a high displacement can be provided with a small space requirement of the engine.

Eine einfache Herstellung der Verdrängerzylinder ist erzielbar, wenn der Verdrängerzylinder gemäß einer bevorzugten Ausführungsform der Erfindung als Radialbohrung in der Zylindertrommel ausgebildet ist.A simple production of the displacer cylinder can be achieved if the displacer cylinder is designed according to a preferred embodiment of the invention as a radial bore in the cylinder drum.

Mit besonderem Vorteil ist zur Steuerung der Verbindung des Verdrängerzylinders mit dem Zulaufkanal sowie dem Ablaufkanal ein Steuerspiegel vorgesehen. Mit einem Steuerspiegel kann auf einfache Weise die Verbindung des in der rotierenden Zylindertrommel angeordneten Verdrängerzylinders mit dem Zulaufkanal und dem Ablaufkanal gesteuert werden.With particular advantage, a control mirror is provided for controlling the connection of the positive displacement cylinder with the inlet channel and the outlet channel. With a Control mirror can be controlled in a simple manner, the connection of the arranged in the rotating cylinder drum displacement cylinder with the inlet channel and the outlet channel.

Zweckmäßigerweise ist hierbei die Zylindertrommel in Axialrichtung an dem Steuerspiegel abgestützt ist, der an einem Gehäuse angeordnet ist. Mit dieser Bauweise können axiale Dichtspalte zwischen den Verdrängerzylindern und dem Zulaufkanal sowie dem Ablaufkanal erzielt werden, die auf einfache Weise abgedichtet werden können, wodurch das Triebwerk mit hohen Betriebsdrücken bei geringen Leckverlusten betrieben werden kann.Appropriately, in this case, the cylinder drum is supported in the axial direction of the control mirror, which is arranged on a housing. With this design axial sealing gaps between the displacement and the inlet channel and the drainage channel can be achieved, which can be sealed in a simple manner, whereby the engine can be operated with high operating pressures at low leakage.

Die Zylindertrommel steht mit besonderem Vorteil mit einer Triebwelle in Wirkverbindung, wodurch ein Antrieb oder ein Abtrieb des Triebwerks auf einfache Weise gebildet werden kann.The cylinder drum is particularly advantageous with a drive shaft in operative connection, whereby a drive or an output of the engine can be easily formed.

Sofern gemäß einer Weiterbildung der Erfindung der Verdrängerzylinder mit einer Kühleinrichtung versehen ist, insbesondere einer Innenkühlung, kann eine isotherme Verdichtung bei einem als Verdichter betriebenen Triebwerks bzw. eine isotherme Entspannung bei einem als Antriebsmaschine betriebenen Triebwerks erzielt werden. Hierdurch sind eine geringe thermische Belastung und Beanspruchung des Triebswerks und ein hoher Wirkungsgrad des Triebwerks erzielbar. Als Kühleinrichtung können beispielsweise in dem Verdrängerzylinder Kühlrippen angeordnet werden.If, according to a development of the invention, the displacer cylinder is provided with a cooling device, in particular an internal cooling, an isothermal compression can be achieved in an engine operated as a compressor or an isothermal expansion in an engine operated as an engine. As a result, a low thermal load and stress on the engine and high efficiency of the engine can be achieved. As a cooling device, for example, cooling ribs can be arranged in the displacement cylinder.

Gemäß einer bevorzugten Ausführungsform der Erfindung ist die Verdrängereinrichtung als Axialkolbenmaschine ausgebildet, wobei jeder Verdrängerzylinder mit einem Zylinderraum der Axialkolbenmaschine in Verbindung steht. Mit einer Axialkolbenmaschine, die eine rotierenden Zylinderblock aufweist, in dem die Zylinderräume ausgebildet sind, kann in Verbindung mit der die Verdrängerzylinder aufweisenden Zylindertrommel ein einfacher Aufbau und ein geringer Bauraumbedarf für das Triebwerk erzielt werden.According to a preferred embodiment of the invention, the displacer device is designed as an axial piston machine, wherein each displacer cylinder is in communication with a cylinder chamber of the axial piston machine. With an axial piston machine, which has a rotating cylinder block in which the cylinder chambers are formed, a simple structure and a small installation space requirement for the engine can be achieved in conjunction with the cylinder drum having the displacement cylinder.

In Weiterbildung der Erfindung ist vorgesehen, dass die Axialkolbenmaschine als Schrägscheibenmaschine mit einer Schrägscheibe, insbesondere einer verstellbaren Schrägscheibe, ausgebildet ist. Mit einer im Fördervolumen bzw. Schluckvolumen verstellbaren Schrägscheibenmaschine kann durch Verschwenken der Schrägscheibe die Verdrängerleistung des Triebswerks und die Drehzahl der mit den Verdrängerzylindem versehenen Zylindertrommel auf einfache Weise verändert werden. Hierdurch kann auf einfache Weise sichergestellt werden, dass die durch die Rotation der Verdrängerzylinder und somit die Fliehkräfte hervorgerufene Beschleunigung der Flüssigkeitssäule größer ist als die durch die Axialkolbenmaschine erzeugte sinusförmige Beschleunigung der Flüssigkeitssäule und sich somit das Triebwerk im Gleichgewicht befindet.In a further development of the invention, it is provided that the axial piston machine is designed as a swash plate machine with a swash plate, in particular an adjustable swash plate. By means of a swash plate machine which can be adjusted in the delivery volume or displacement volume, the swashplate can be swiveled by pivoting the displacement of the engine and the speed of the cylinder drum provided with the Verdrängerzylindem be changed in a simple manner. In this way it can be ensured in a simple manner that caused by the rotation of the displacer cylinder and thus the centrifugal forces acceleration of the liquid column is greater than the generated by the axial piston sinusoidal acceleration of the liquid column and thus the engine is in equilibrium.

Gemäß einer bevorzugten Ausgestaltungsform der Erfindung, gemäß der die Axialkolbenmaschine einen mit den Zylinderräumen versehenen Zylinderblock aufweist, ist der Zylinderblock der Axialkolbenmaschine mit der die Verdrängerzylinder aufnehmenden Zylindertrommel drehsynchron gekoppelt. Hierdurch kann auf einfache Weise eine sichere und drehsynchrone Verbindung zwischen den in dem Zylinderblock der Axialkolbenmaschine angeordneten Zylinderräumen und den Verdrängerzylindem der Zylindertrommel erzielt werden.According to a preferred embodiment of the invention, according to which the axial piston machine has a cylinder block provided with the cylinder chambers, the cylinder block of the axial piston machine is rotationally synchronously coupled with the cylindrical drum accommodating the displacement cylinders. In this way, a safe and rotationally synchronized connection between the arranged in the cylinder block of the axial piston cylinder chambers and the Verdrängerzylindem the cylinder drum can be achieved in a simple manner.

Sofern gemäß einer weiteren Ausgestaltungsform der Erfindung der Zylinderblock der Axialkolbenmaschine und die die Verdrängerzylinder aufnehmende Zylindertrommel als gemeinsame Zylindertrommel ausgebildet sind, kann eine Integration der Verdrängerzylinder in den Zylinderblock der Axialkolbenmaschine erzielt werden und somit ein Triebwerk mit geringer Teileanzahl, geringem Bauraumbedarf und somit geringem Herstellaufwand zur Verfügung gestellt werden.If, according to a further embodiment of the invention, the cylinder block of the axial piston machine and the cylinder cylinder accommodating the displacer cylinders are designed as a common cylinder drum, an integration of the displacer cylinders into the cylinder block of the axial piston machine can be achieved and thus an engine with a low number of parts, low space requirement and thus low production costs Will be provided.

Hinsichtlich eines einfachen Aufbaus und einem geringen Bauraumbedarf ist es günstig, wenn gemäß einer Weiterbildung der Erfindung die Zylindertrommel und die Verdrängereinrichtung in einem gemeinsamen Gehäuse angeordnet sind.With regard to a simple construction and a small space requirement, it is advantageous if, according to a development of the invention, the cylinder drum and the displacement device are arranged in a common housing.

Das erfindungsgemäße Triebwerk kann gemäß einer vorteilhaften Ausführungsform als Verdichter zum Verdichten eines gasförmigen Mediums, insbesondere von Wasserstoff, ausgebildet sein. Mit einem erfindungsgemäßen kolbenlosen Verdichter, bei dem das Medium von der als Pumpe betriebenen Axialkolbenmaschine durch die von der Axialkolbenmaschine geförderte Flüssigkeit verdichtet wird, kann bei geringem Bauraumbedarf eine hohe Verdichterleistung bei geringem Herstellaufwand und hoher Reinheit des verdichteten Mediums erzielt werden.The engine according to the invention can be designed according to an advantageous embodiment as a compressor for compressing a gaseous medium, in particular of hydrogen. With a piston-less compressor according to the invention, in which the medium is compressed by the pumped axial piston machine by the liquid conveyed by the axial piston machine, a high compressor performance can be achieved with low production costs and high purity of the compressed medium with low space requirement.

Das erfindungsgemäße Triebwerk kann ebenfalls als Antriebsmaschine zum Abgriff eines Drehmoments ausgebildet ist. Der Antrieb erfolgt hierbei über das Medium, wobei mittels der von der Flüssigkeit angetriebenen und somit als Motor betriebenen Axialkolbenmaschine ein Drehmoment erzeugt wird, das über die Zylindertrommel und die Triebwelle abgegriffen werden kann. Durch die erfindungsgemäße radiale Anordnung der Verdrängerzylinder kann hierbei bei geringem Bauraumbedarf eine hohe Verdrängerleistung erzeugt werden.The engine according to the invention can also be designed as a drive machine for tapping a torque. The drive takes place here via the medium, wherein by means of the liquid driven and thus operated as a motor axial piston machine, a torque is generated, which can be tapped via the cylinder drum and the drive shaft. The radial arrangement of the displacer cylinder according to the invention makes it possible to produce a high displacement capacity with a small space requirement.

Weitere Vorteile und Einzelheiten der Erfindung werden anhand des in der schematischen Figur dargestellten Ausführungsbeispiels näher erläutert.Further advantages and details of the invention will be explained in more detail with reference to the embodiment shown in the schematic figure.

Die Figur zeigt ein erfindungsgemäßes Triebwerk 1 in einem Längsschnitt. Innerhalb eines Gehäuses 2 ist eine Triebwelle 3 um eine Drehachse 4 drehbar gelagert. Mit der Triebwelle 3 ist eine Zylindertrommel 5 drehsynchron gekoppelt, in der mehrere Verdrängerzylinder 6 ausgebildet sind. Die Verdrängerzylinder 6 sind hierbei als in der Zylindertrommel 5 angeordnete Radialbohrungen 14 ausgebildet und um die Drehachse 4 sternförmig angeordnet, wobei die Längsachse 7 der Verdrängerzylinder 6 senkrecht zur Drehachse 4 der Triebwelle 3 und somit der Zylindertrommel 5 angeordnet ist.The figure shows an inventive engine 1 in a longitudinal section. Within a housing 2, a drive shaft 3 is rotatably mounted about a rotation axis 4. With the drive shaft 3, a cylinder drum 5 is rotatably coupled, in which a plurality of displacement cylinders 6 are formed. The displacement cylinder 6 are in this case designed as arranged in the cylinder drum 5 radial bores 14 and arranged in a star shape about the rotation axis 4, wherein the longitudinal axis 7 of the displacer 6 is perpendicular to the axis of rotation 4 of the drive shaft 3 and thus the cylinder drum 5.

Die Verdrängerzylinder 6 stehen im radial inneren Bereich mit jeweils einem Verbindungskanal 8 in Verbindung, der mit einem scheibenförmigen Steuerspiegel 9 in Wirkverbindung steht, wobei mittels des Steuerspiegels 9 die Verbindung der Verdrängerzylinder 6 mit einem Zulaufkanal 10 sowie einem Ablaufkanal 11 steuerbar ist. Die Zylindertrommel 5 ist hierbei in Axialrichtung an dem Steuerspiegel 9 abgestützt, der an einem an dem Gehäuse 2 befestigten Gehäusedeckel 12 angeordnet ist.The displacer cylinder 6 are in the radially inner region in each case with a connecting channel 8 in connection, which is in operative connection with a disc-shaped control mirror 9, wherein by means of the control mirror 9, the connection of the displacer 6 with an inlet channel 10 and a flow channel 11 is controllable. The cylinder drum 5 is in this case supported in the axial direction on the control mirror 9, which is arranged on a housing cover 12 attached to the housing 2.

In den Verdrängerzylindern 6 ist Flüssigkeit 15, insbesondere ionische Flüssigkeit, angeordnet.In the displacement cylinders 6 liquid 15, in particular ionic liquid is arranged.

Jeder Verdrängerzylinder 6 steht mittels eines Verbindungskanals 13 mit einem Zylinderraum 16 einer als Axialkolbenmaschine in Schrägscheibenbauweise ausgebildeten hydraulischen Verdrängereinrichtung 17 in Verbindung. Die als Axialkolbenmaschine ausgebildete Verdrängereinrichtung 17 weist hierbei einen Zylinderblock 18 auf, der koaxial zu der Zylindertrommel 5 angeordnet und mit der Zylindertrommel 5 bzw. der Triebwelle 3 drehfest verbunden ist. Es ist ebenfalls möglich, den Zylinderblock 18 und die Zylindertrommel 5 als gemeinsame und somit einstückige Zylindertrommel auszubilden.Each displacer cylinder 6 is connected by means of a connecting channel 13 with a cylinder chamber 16 of a designed as axial piston machine in swash plate design hydraulic displacement device 17 in connection. The displacer device 17 embodied as an axial piston machine has a Cylinder block 18 which is arranged coaxially with the cylinder drum 5 and rotatably connected to the cylinder drum 5 and the drive shaft 3. It is also possible to form the cylinder block 18 and the cylinder drum 5 as a common and thus one-piece cylinder drum.

Die Zylinderräume 16 der Axialkobenmaschine sind von in dem Zylinderblock 18 konzentrisch angeordneten Längsbohrungen 20 gebildet, in denen jeweils ein Kolben 21 längsverschiebbar angeordnet sind. Die Kolben 21 sind mittels jeweils eines Gleitschuhs 22 an einer Schrägscheibe 23 abgestützt. Zwischen Kolben 21 und Gleitschuh 22 ist ein kugeliges Gleitschuhgelenk ausgebildet.The cylinder chambers 16 of the axial piston machine are formed by longitudinal bores 20 concentrically arranged in the cylinder block 18, in each of which a piston 21 is arranged to be longitudinally displaceable. The pistons 21 are supported by means of a respective sliding shoe 22 on a swash plate 23. Between piston 21 and shoe 22, a spherical Gleitschuhgelenk is formed.

Die Axialkolbenmaschine ist als im Verdrängervolumen verstellbare Axialkolbenmaschine ausgebildet, wobei die Schrägscheibe 23 am Gehäuse 2 schwenkbar gelagert ist und mittels einer nicht mehr dargestellten Stelleinrichtung bezüglich der Drehachse 4 neigbar ist. Es ist jedoch ebenfalls möglich, die Axialkolbenmaschine mit einem festen Verdrängervolumen auszubilden, wobei die Schrägscheibe unmittelbar am Gehäuse 2 ausgebildet werden kann.The axial piston machine is designed as an axial piston machine which can be adjusted in the displacement volume, wherein the swashplate 23 is pivotally mounted on the housing 2 and can be tilted relative to the axis of rotation 4 by means of an adjusting device which is no longer shown. However, it is also possible to form the axial piston machine with a fixed displacement volume, wherein the swash plate can be formed directly on the housing 2.

Die Zylindertrommel 5 und die Verdrängereinrichtung 17 sind hierbei in dem gemeinsamen Gehäuse angeordnet.The cylinder drum 5 and the displacement device 17 are arranged in the common housing.

Bei einer Ausbildung des erfindungsgemäßen Triebswerks 1 als Verdichter wird über die Triebwelle 3 die Zylindertrommel 5 und der Zylinderblock 18 angetrieben. Die Axialkolbenmaschine arbeitet hierbei als Pumpe und fördert Flüssigkeit 15 von den Zylinderräumen 16 in die Verdrängerzylinder 6, wodurch das über den Zulaufkanal 10 in die Verdrängerzylinder 6 einströmende Medium durch die Flüssigkeit 15 verdichtet und in den Ablaufkanal 11 gefördert wird. Im Betrieb des Triebwerks 1 wirkt aufgrund der radialen Anordnung der Verdrängerzylinder 6 durch die Rotation der Zylindertrommel 5 auf die Flüssigkeit 15 Fliehkraft ein, die die Flüssigkeit beschleunigt, wodurch die Flüssigkeitssäule mit hoher Geschwindigkeit bewegt werden kann und somit das Triebwerk 1 mit einer hoher Drehzahl und somit einer hohen Zyklusgeschwindigkeit betrieben werden kann.In an embodiment of the engine 1 according to the invention as a compressor, the cylinder drum 5 and the cylinder block 18 are driven via the drive shaft 3. The axial piston machine operates as a pump and delivers liquid 15 from the cylinder chambers 16 into the displacer cylinder 6, whereby the medium flowing in via the inlet channel 10 into the displacer cylinder 6 is compressed by the liquid 15 and conveyed into the outlet channel 11. In operation of the engine 1 acts due to the radial arrangement of the displacer 6 by the rotation of the cylinder drum 5 on the liquid 15 centrifugal force, which accelerates the liquid, whereby the liquid column can be moved at high speed and thus the engine 1 at a high speed and Thus, a high cycle speed can be operated.

Das erfindungsgemäße Triebwerk kann somit gegenüber gattungsgemäßen Verdichtern bei gleicher Förderleistung im Bauraum verringert werden, wobei bei geringem Bauraumbedarf eine hohe Förderleistung bei hohem Wirkungsgrad erzielt werden kann.The engine according to the invention can thus be reduced compared to generic compressors at the same capacity in the space, with at low space requirement, a high flow rate can be achieved with high efficiency.

Durch die verstellbare Schrägscheibe 23 der Axialkolbenpumpe ist eine unmittelbare Steuerung der Förderleistung möglich. Durch die Steuerung der Verbindung der rotierenden Verdrängerzylinder 6 mit dem Zulaufkanal 10 sowie dem Ablaufkanal 11 durch den Steuerspiegel 9 ist kein elektrisches Wegemesssystem erforderlich, wodurch sich ein verringerter Herstellaufwand des erfindungsgemäßen Triebwerks 1 ergibt.By the adjustable swash plate 23 of the axial piston pump direct control of the flow rate is possible. By controlling the connection of the rotating displacement cylinder 6 with the inlet channel 10 and the flow channel 11 through the control mirror 9, no electrical path measuring system is required, resulting in a reduced manufacturing complexity of the engine 1 according to the invention.

Bei einer Ausbildung des erfindungsgemäßen Triebwerks 1 als Antriebsmaschine wird unter Druck stehendes Medium über den Zulaufkanal 10 den Verdrängerzylindem 6 zugeführt. Über die Flüssigkeit 15 werden die Kolben 21 beaufschlagt, wobei die Axialkolbenmaschine als Motor betrieben wird und eine Drehbewegung der Zylindertrommel 5 und des Zylinderblocks 18 erzeugt wird, wodurch ein Drehmoment an der Triebwelle 3 abgegriffen werden kann.In one embodiment of the engine 1 according to the invention as a prime mover, pressurized medium is supplied via the inlet channel 10 to the displacer cylinder 6. About the liquid 15, the piston 21 are acted upon, wherein the axial piston machine is operated as a motor and a rotational movement of the cylinder drum 5 and the cylinder block 18 is generated, whereby a torque on the drive shaft 3 can be tapped.

Claims (14)

  1. Drive unit (1) with at least one pistonless displacer cylinder (6), in which a fluid (15), in particular an ionic fluid, is arranged and which is connectable to an inflow duct (10) and to an outflow duct (11) for medium, the fluid (15) being operatively connected to a displacer device (17), characterized in that the pistonless displacer cylinder (6) is arranged in a cylinder drum (5), mounted rotatably about an axis of rotation (4), at an inclination with respect to the axis of rotation (4) of the cylinder drum (5).
  2. Drive unit according to Claim 1, characterized in that the pistonless displacer cylinder (6) is arranged perpendicularly with respect to the axis of rotation (4) of the cylinder drum (5).
  3. Drive unit according to Claim 2, characterized in that the pistonless displacer cylinder (6) is designed as a radial bore (14) arranged in the cylinder drum (5).
  4. Drive unit according to one of Claims 1 to 3, characterized in that a control panel (9) is provided for controlling the connection of the pistonless displacer cylinder (6) to the inflow duct (10) and to the outflow duct (11).
  5. Drive unit according to Claim 4, characterized in that the cylinder drum (5) is supported in the axial direction on the control panel (9) which is arranged on a housing (2).
  6. Drive unit according to one of Claims 1 to 5, characterized in that the cylinder drum (5) is operatively connected to a drive shaft (3).
  7. Drive unit according to one of Claims 1 to 6, characterized in that the pistonless displacer cylinder (6) is provided with a cooling device, in particular internal cooling.
  8. Drive unit according to one of Claims 1 to 7, characterized in that the displacer device (17) is designed as an axial piston machine, each pistonless displacer cylinder (6) being connected to a cylinder space 16) of the axial piston machine.
  9. Drive unit according to Claim 8, characterized in that the axial piston machine is designed as a swashplate machine with a swashplate (23), in particular an adjustable swashplate.
  10. Drive unit according to Claim 8 or 9, the axial piston machine having a cylinder block (18) provided with the cylinder spaces (16), characterized in that the cylinder block (18) of the axial piston machine is coupled in a rotationally synchronous manner to the cylinder drum (5) receiving the pistonless displacer cylinders (6).
  11. Drive unit according to Claim 8 or 9, characterized in that the cylinder block (18) of the axial piston machine and the cylinder drum (5) receiving the pistonless displacer cylinders (6) are designed as a common cylinder drum.
  12. Drive unit according to one of Claims 1 to 11, characterized in that the cylinder drum (5) and the displacer device (17) are arranged in a common housing (2).
  13. Drive unit according to one of Claims 1 to 12, characterized in that the drive unit is designed as a compressor for compressing a gaseous medium, in particular hydrogen.
  14. Drive unit according to one of Claims 1 to 12, characterized in that the drive unit is designed as an engine for picking up a torque.
EP06762815A 2005-08-02 2006-07-25 Engine Not-in-force EP1910675B1 (en)

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AU (1) AU2006275140A1 (en)
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DE102014201473A1 (en) * 2014-01-28 2015-07-30 Neuman & Esser Gmbh & Co. Kg PISTON ROD FOR PISTON COMPRESSORS AND PISTON COMPRESSOR

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US3585904A (en) * 1968-11-26 1971-06-22 Meyer P White Compressor
CH608853A5 (en) * 1976-08-05 1979-01-31 Meynadier & Cie Ag Rotor for a concrete-spraying machine
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CA2617461A1 (en) 2007-02-08
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US20080298979A1 (en) 2008-12-04
DE502006001645D1 (en) 2008-11-06
DE102005036308A1 (en) 2007-02-08
AU2006275140A1 (en) 2007-02-08
CN101233320B (en) 2010-05-19
CN101233320A (en) 2008-07-30
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ATE409283T1 (en) 2008-10-15
EP1910675A1 (en) 2008-04-16

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