EP4062066A1 - Fluidmaschine, insbesondere hydromaschine - Google Patents
Fluidmaschine, insbesondere hydromaschineInfo
- Publication number
- EP4062066A1 EP4062066A1 EP20807447.6A EP20807447A EP4062066A1 EP 4062066 A1 EP4062066 A1 EP 4062066A1 EP 20807447 A EP20807447 A EP 20807447A EP 4062066 A1 EP4062066 A1 EP 4062066A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- rotor
- fluid
- fluid machine
- machine according
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/084—Toothed wheels
-
- 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
- F03C2/00—Rotary-piston engines
- F03C2/08—Rotary-piston engines of intermeshing-engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/103—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member one member having simultaneously a rotational movement about its own axis and an orbital movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/103—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member one member having simultaneously a rotational movement about its own axis and an orbital movement
- F04C2/105—Details concerning timing or distribution valves
Definitions
- the invention relates to a fluid machine, in particular a hydraulic machine, which comprises at least one working chamber, a rotor being driven by a torque or by a fluid that enters the at least one working chamber on an inlet side and out of the at least one working chamber on an outlet side for operating the machine flows out, is rotatable.
- WO 86/04683 A1 describes a fluid machine in which a plurality of valve disks form an inlet and an outlet valve on an inlet and an outlet side.
- Each of the valves comprises a first valve plate with several inlet and outlet openings through which the fluid can flow in and out of working chambers, and two further concentric valve plates, of which a first valve plate is fixed in place and a second valve plate is fixed against rotation with a shaft of the fluid machine connected is.
- the working chambers are formed between a “stationary ring gear” and a “rotor ring gear” and between the “rotor ring gear” and a “ring gear” and are located between the inlet and outlet valves in the direction of flow.
- a fluid machine designed as a motor or pump is known from WO 2015/076716 A1, in which a shaft is rotated by a linear movement of “pistons” against external teeth (“cam profile”) of a rotor shaft attachment.
- No. 4,697,997 A discloses a fluid machine in which a shaft can rotate about central axes A, B by means of “spline connectors” when a fluid is introduced.
- Fluid machines are also known from the prior art, which are designed either as a drive or as a pump. Such fluid machines can be operated with a pressurized gas or a pressurized liquid such as water or oil.
- Hydraulic machines operated with hydraulic oil are used, for example, as drives in construction vehicles and are characterized by a particularly high drive torque. moment off.
- the hydraulic oil flows into a usually cylindrical machine housing in which a rotor is arranged, from an inlet side, which is often referred to as the high-pressure side, through a working chamber to an outlet side, which is often referred to as the low-pressure side, causing the rotor to rotate for generation the drive torque.
- inlet valve on the inlet side and an outlet valve on the outlet side, which must open and close synchronously in order to operate the fluid machine.
- regulated valve control by a separate control unit is required in order to prevent a pressure loss or an undesired flow of the fluid past the working chamber. This creates a structurally complex system that is also very maintenance-intensive.
- the present invention is based on the object of developing a fluid machine of the type mentioned at the beginning, which is simple in construction and particularly easy to maintain.
- the object is achieved in that a rotation of the rotor causes control of at least one valve.
- the valve is controlled directly and synchronously with a movement of the rotor.
- An additional control unit for controlling the at least one valve is advantageously not required.
- the at least one valve expediently comprises at least one eccentric valve disk.
- the valve disc is preferably circular.
- the preferably circular valve disk is arranged eccentrically, there is a gap between the disk and an inner wall of a cylindrical machine housing of the fluid machine, which forms a passage channel for the fluid, through which the fluid can flow into the at least one working chamber for the operation of the machine, while the valve disk forms a sealing surface with the machine housing on a side opposite the gap.
- the fluid can flow through the gap into the at least one working chamber and cause the rotor to rotate.
- a fluid pressure acts on at least one rotor outer tooth of the rotor or at least one rotor shaft attachment tooth.
- a rotor shaft attachment is preferably attached eccentrically to a rotor shaft of the rotor by a tooth connection.
- Adjacent rotor outer teeth or rotor shaft attachment teeth, a machine housing and the at least one valve delimit the at least one working chamber. If two eccentric valves are provided, one can control an inlet into the at least one working chamber and another can control an outlet out of the at least one working chamber.
- both the inlet valve and the outlet valve can have at least one valve disk, the at least one valve disk of the inlet valve being arranged offset by 90 degrees in the circumferential direction relative to the at least one valve disk of the outlet valve.
- the at least one working chamber is delimited by a machine housing, rotor external teeth or rotor shaft attachment teeth and the two valves, a force acting on the rotor external teeth or rotor shaft attachment teeth through fluid pressure can cause the rotor to rotate in such a way that an inlet opening of the at least one working chamber is reduced, while an exhaust port is enlarged. It is advantageously ensured that the fluid can flow into the at least one working chamber on the inlet side and can flow out of the working chamber on the outlet side.
- valve disks are connected to the rotor shaft or the rotor shaft attachment, a movement of the valve disks synchronous with the rotation of the rotor is possible.
- a separate control for example by a control unit, is not required.
- the valve disks can be designed to be elastic, for example made of a plastic.
- An adaptation to a pressure-related deformation of a machine housing during operation of the fluid machine is possible. It is advantageously prevented that further gaps are formed and a leakage flow, that is to say a fluid flow which does not make any contribution to the generation of a rotation of the rotor, increases.
- the at least one valve comprises a plurality of eccentric valve disks which are attached one behind the other in a longitudinal direction of the rotor shaft, with adjacent valve disks being arranged offset from one another in particular in the circumferential direction.
- the offset arrangement advantageously ensures particularly good tightness of a working chamber during machine operation. Gaps that can cause a flow through the at least one working chamber without generating a torque are advantageously not formed. A leakage flow is minimized. The efficiency of the machine increases. With an increasing number of valve disks, the leakage flow also decreases.
- two valves, one on the inlet side and one on the outlet side are provided, each of which comprises a plurality of valve disks.
- the at least one valve comprises a plurality of toothed and eccentric valve disks which are arranged one behind the other in a longitudinal direction of the rotor, with adjacent valve disks being arranged offset from one another in particular in the circumferential direction.
- the at least one valve is advantageously formed from identical components. Production of the fluid machine is simplified as a result.
- the offset arrangement also advantageously ensures particularly good tightness of the working chamber during machine operation.
- valve disks of the at least one valve, the rotor and / or a rotor shaft attachment are toothed. External teeth can be integrally formed on a rotor shaft of the rotor or a rotor shaft attachment. Production of the fluid machine is advantageously simplified. Essentially identical components can be used both for the valves and for the rotor shaft attachment.
- each of which is designed as a rotatable cylinder element whose axis of rotation is preferably parallel to a longitudinal axis of the rotor.
- a working chamber is formed between adjacent rotor teeth or rotor shaft attachment teeth, adjacent internal teeth of the machine housing and the inlet and outlet valves. External teeth of the valve disks, of the rotor or of the rotor shaft attachment rest against the internal teeth, form a sealing surface and move relative to the internal teeth when the machine is in operation, as the rotor rotates and the valve disks are synchronized with it.
- a rotatable mounting of the internal teeth advantageously minimizes friction losses. The efficiency increases, wear decreases.
- a torque to be applied to start the fluid machine is significantly lower than without a rotatable mounting of the internal teeth.
- valve disks of the at least one valve are provided with rotatable cylinder elements having external teeth, while internal teeth of a machine housing are rigid.
- a gap is formed between the cylinder element and the machine housing or an inner part of the machine housing, which gap is provided for receiving fluid during operation of the fluid machine and is used as a lubricant bag works. Frictional losses are advantageously further reduced. Furthermore, wear is reduced.
- the at least one valve and the rotor are expediently coupled directly to one another and can be rotated synchronously.
- the at least one valve can be connected non-rotatably to a rotor shaft.
- valve has internal teeth which are in engagement with external teeth of the rotor shaft.
- a rotation of the rotor in relation to the rotor shaft attachment advantageously brings about a synchronous valve control.
- a separate control unit to control the valves is not required.
- a material and / or frictional connection or a combination of different types of connection is also conceivable.
- two valves are provided, of which a first valve regulates a fluid inlet into the at least one working chamber and a second regulates a fluid outlet out of the at least one working chamber.
- Both valves can be formed from at least one valve disc and connected to a rotor shaft in a rotationally fixed manner. It goes without saying that both valves are moved synchronously with a rotation of the rotor. Self-regulation of the valve control is advantageously effected.
- the at least one valve disk of each valve rotates synchronously with a rotor shaft attachment of the rotor.
- the rotor shaft attachment preferably encloses a rotor shaft and is connected to this by a tooth connection acting as a gear.
- a gear ratio can be set by suitable selection of a toothing.
- a rotational speed of the rotor can advantageously be set during operation of the fluid machine.
- the at least one valve has a valve body which extends through an inlet channel and an outlet channel. Because the valve body extends through the two channels, an inlet and an outlet channel can be at least partially opened or closed at the same time by moving a single valve. A particularly simply constructed fluid machine is advantageously created, which can be made very compact. Although it is conceivable that an inlet channel and an outlet channel are of different sizes, in one embodiment of the invention an inlet channel and an outlet channel are of the same size and, in particular, have the same cross-sections. A particularly simple production is advantageously possible.
- the at least one valve is expediently designed as a rotary slide, which has an eccentrically arranged means for rotating the rotary slide, which preferably comprises an actuating pin. By operating the eccentric pin, the valves can be opened and closed particularly easily with little effort.
- a means for controlling and rotating the at least one valve designed as a rotary slide which preferably comprises a control disk.
- the preferably circular control disk can be connected to a rotor or a rotor shaft attachment. Because the control disk opens or closes the at least one rotary slide valve, valve control is advantageously synchronous with the rotation of the rotor. Continuous, trouble-free operation of the fluid machine is ensured. A separate control unit for valve control is not required.
- a means for controlling and rotating at least one valve designed as a rotary slide valve has a control disk with recesses which are provided for receiving an eccentric means for rotating the valve designed as a rotary slide valve.
- the eccentric means for rotating the rotary slide which can comprise actuating pins, engages in the recesses, which can be designed as through bores or blind holes. A particularly stable and precisely fitting reception of the eccentric means is advantageously possible.
- control disk has an annular groove.
- a web of a rotor shaft or a rotor shaft attachment which extends at least partially in a circumferential direction engages in the annular groove.
- the control disk is held concentrically on the rotor shaft or the rotor shaft attachment and can be rotated eccentrically with the valve control synchronously with its rotation.
- a direction of rotation of the fluid machine can be reversed by interchanging a high-pressure side and a low-pressure side.
- the high pressure side is an inlet side
- the low-pressure side an outlet side.
- Four-quadrant operation is advantageously possible.
- a direction of inflow of the fluid into the fluid machine is expediently parallel, perpendicular or oblique to a longitudinal direction of the rotor.
- the rotor is designed as a hollow shaft.
- the fluid machine can advantageously be designed as a ring which encloses a component to be rotated or is connected non-rotatably to a component or an assembly.
- a component or such an assembly can be members of an industrial robot that can be moved relative to one another and have to apply particularly large forces.
- the fluid machine is designed as a pump or as a drive.
- a fluid By rotating the rotor by an applied torque, a fluid can be conveyed from an inlet side to an outlet side. If, on the other hand, a fluid flows under pressure from an inlet side to an outlet side, the rotation of the rotor generates a torque that can be used, for example, to operate a drive train.
- the fluid machine can advantageously be used flexibly for various uses.
- a through channel through which the fluid can flow through an inlet valve into the at least one working chamber is delimited by eccentric valve disks and an inner wall of a machine housing or an inner machine housing. It is advantageously ensured that the fluid can flow into the at least one working chamber on an inlet side and a leakage flow, that is to say a fluid flow which does not contribute to the generation of a rotation of the rotor, is minimized.
- a fluid machine with a simple structure is also advantageously created; special sealing means known from the prior art are not required.
- FIG. 2 shows a second embodiment of a fluid machine according to the invention in several views
- a hydraulic machine (1) which can be operated with water and is shown in FIG. 1 a in a partially sectioned isometric view, in FIG. 1 b in a partially sectioned side view and in FIG. 1 c along a section BB comprises a cylindrical machine housing (2) in which a cylindrical rotor (3) is rotatably supported by ball bearings (4).
- the machine housing (2) is formed by a rotor shaft (5), on the outer surface of which is spaced apart from one another in the circumferential direction, two supporting disks (7, 8) and two valves (9, 10), each with a valve disk (11, 12), divided into an inlet chamber (13), several working chambers (14) arranged in the circumferential direction and an outlet chamber (15).
- Each working chamber (14) is delimited by the valve disks (11, 12) as well as adjacent outer rotor teeth (6) and the machine housing (2).
- the two valve disks (11, 12) are arranged eccentrically on the rotor shaft (5) offset from one another by 180 ° in the circumferential direction.
- a first through channel (16) is formed between the valve disc (11) and the machine housing (2), through which water can flow from the inlet chamber (13) into several working chambers (14).
- a second through-channel (17) is formed between the valve disc (12) and the machine housing (2), through which water can flow out of the working chambers (14) into the outlet chamber (15).
- the first (16) and the second through channel (17) are located on opposite sides of the machine housing (2) and each extend over half its circumference.
- the two support disks (7, 8) have a smaller diameter than the machine housing (2), so that an annular gap (18, 19) is formed between the support disks (7, 8) and the machine housing (2).
- the support disks (7, 8), the rotor external teeth (6) and the valve disks (11, 12) form sealing surfaces on contact surfaces where they rest against one another. A tightness becomes achieved in that these components are pressed against one another by clamping a pressure disk (21) shown in detail in FIG. 1b and a plate spring (22) on the inlet side of the machine housing (2) between the support disk (7) and a locking ring (20) are. On one outlet side, the support disc (8) rests against a further locking ring (23).
- water can flow from a high-pressure side, which is an inlet side, through an inlet opening (24) into the inlet chamber (13) and through the annular gap (18) and the first passage channel (16) further into the at least partially open Flow into working chambers (14). From the working chambers (14), the water can be discharged on the outlet side, if the valve disc (12) is in the appropriate position, through the second through-channel (17) and the annular gap (19) into the outlet chamber (15) to the low-pressure side and out of this through an outlet opening (25) flow out of the machine housing (2).
- valve disks (11, 12) are offset from one another by 180 degrees in the circumferential direction, the water flows into the working chambers (14) on the inlet side depending on the position of the valve disk (11), but cannot or only in small quantities outflow on the outlet side , since the second through-channel (17) is blocked by the valve disc (12) on the outlet side.
- Water pressure is applied to the outer rotor teeth (6) delimiting the working chambers (14), causing the rotor shaft (3) to rotate in the direction of an arrow (26).
- the valve disks (11, 12) attached to the rotor shaft (5) are rotated synchronously in such a way that when the rotor rotates, the working chambers (14) are gradually closed on the inlet side and gradually opened on the outlet side. As a result, water that has flowed into the working chambers and causing the rotor to rotate is expelled on the outlet side.
- FIG. 2 In a machine housing (2) shown in FIG. 1c, the rotor shaft attachment (6) is shown hatched. Water can flow directly from the inlet chamber (14) into the outlet chamber (15) through a section (27) of the through channel (17).
- FIG. 2 A hydraulic machine (la) shown in Fig. 2a in a partially sectioned, sectioned isometric view, in Fig. 2b in a partially sectioned side view and in Fig. 2c along a section BB differs from that shown in Fig. 1 in that each valve (9a, 10a) each has three eccentric valve disks (28-30, 31-33) arranged one behind the other, which are arranged offset from one another by 45 degrees in the circumferential direction.
- a second through-channel (17a) shown in FIG. 2c does not have a section, denoted by (27) in FIG. 1, with a gap between the valve disks (31-33) and a machine housing (2a) through which water runs during operation of the hydraulic machine (la) can flow directly from an inlet chamber (13a) into an outlet chamber (15a).
- FIG. 3 where parts that are the same or function in the same way are denoted by the same reference numbers as in FIGS. 1 and 2 and the letter b is added to the relevant reference number.
- a further embodiment of a hydraulic machine (lb) shown in FIG. 3a in a partial longitudinal section and in FIG. 3b in a partial cross section along BB comprises a two-part, cylindrical machine housing (2b), which has an outer machine housing (34) and an inner machine housing ( 35), the inner housing (35) being provided with 18 inner teeth (36) which are designed to engage with 17 outer teeth (37) of seven identical valve disks (38) of an inlet valve (9b) and an outlet valve (10b) and rotor shaft attachment teeth ( 6b) of a rotor shaft attachment (39) are provided.
- Each inner tooth is designed as a pin-like cylinder element (40) which is arranged in a bore (41) in the inner housing (35) which is partially open in the circumferential direction.
- Each cylinder element (40) is rotatable about an axis which is parallel to a longitudinal axis of the rotor (3b).
- a gap is formed between the cylinder elements (40) and the machine inner housing, which gap is provided to be filled with water during operation of the hydraulic machine (1b) and thus to act as a lubrication pocket.
- Each of the seven valve disks (38) of each valve (9b, 10b) is arranged eccentrically to a cylinder axis of the machine housing (2b), with internal teeth (42) of the eccentric valve disks engaging in external teeth (43) of a rotor (3b) and adjacent valve disks ( 38) as shown in Fig. 3c and d in a partially sectioned isometric view are arranged offset from one another in the circumferential direction.
- valve disks (38) and the rotor shaft attachment (39) have essentially the same cross-sections, which means in particular that each valve disk (38) and the rotor shaft attachment (39) are provided with the same number of external teeth (37, 6b).
- Working chambers (14b) are delimited by the valves (9b, 10b), adjacent cylinder elements (40), adjacent rotor shaft attachment teeth (6b) and the machine inner housing (35).
- the fluid which can be water, oil or a gas
- valve disks (38) are offset from one another in the circumferential direction and are arranged eccentrically, it is ensured during operation of the fluid machine (lb) that fluid can flow into the working chambers on the inlet side and can flow out on the outlet side after the rotor (3b) continues to rotate. A leakage flow is completely prevented. Continuous operation is advantageously possible due to the synchronous movement of the valve disks (38).
- FIG. 4 where parts that are the same or function in the same way are denoted by the same reference numbers as in FIGS. 1 to 3 and the letter c is added to the relevant reference number.
- FIG. 4a A detail of a particular embodiment of a hydraulic machine (lc) shown schematically in FIG. 4a in an isometric rear view and in FIG. 4b in a top view comprises a rotor shaft attachment (39c) with seventeen rotor shaft attachment teeth (6c) and a machine housing inner part (45), which is in a 4 is arranged hollow cylindrical machine housing, in the outer surface of which bores are made through which a fluid, which can be water, oil or a gas, can flow into inlet channels (46) and can flow out through outlet channels (47).
- a fluid which can be water, oil or a gas
- Each inlet (46) and outlet (47) channel which are of the same size, extends perpendicular to a rotor shaft (not shown in FIG. 4).
- Both channels (46, 47) can be at least partially opened or closed at the same time by a single rotatable valve (48), since a semi-cylindrical valve body (49) of the valve (48) extends over both channels (46,
- each of the valve bodies (49) has an eccentric actuating pin (50), which can be actuated to rotate into different valve positions shown in FIG. 4a.
- Each actuating pin (50) engages in bores (51) designed as blind holes and shown schematically in FIG. 4c.
- an annular groove (52) of a control disk (53) engages a web (not shown in FIG. 4c) which extends in the circumferential direction and which is integrally formed on a rotor shaft attachment (39c).
- the control disk (52) and a rotor (3c) move synchronously during machine operation, which controls the valves (48).
- a working chamber (14c) is delimited by adjacent rotor shaft attachment teeth (6c), adjacent cylinder elements (40c), the associated semi-cylindrical valve body (49) and the control disk (53). On a side opposite the control disk, a cover (not shown in FIG. 4) is provided to delimit the working chambers (14c).
- each valve (48) comprises a two-part valve body, the first valve body part of which can be rotated by a first control disk (53) and the second valve body part of which is rotatable by a valve body not shown in FIG. identical second control disc.
- the second control disk can be attached to a side opposite the first control disks and can preferably be formed in one piece.
- each toothed valve disc (38) is provided with external teeth (37), each of which is designed as a rotatable cylinder element (40; 40c), while internal teeth of a machine housing (2b) or an inner part of the machine housing (45) are fixed.
- a fluid machine (1-lc) is designed as a pump and / or is operated with oil or a gas such as nitrogen.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Hydraulic Motors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202019106521.4U DE202019106521U1 (de) | 2019-11-22 | 2019-11-22 | Fluidmaschine, insbesondere Hydromaschine |
| LU101491A LU101491B1 (de) | 2019-11-22 | 2019-11-22 | Fluidmaschine, insbesondere Hydromaschine |
| PCT/EP2020/082851 WO2021099550A1 (de) | 2019-11-22 | 2020-11-20 | Fluidmaschine, insbesondere hydromaschine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4062066A1 true EP4062066A1 (de) | 2022-09-28 |
| EP4062066C0 EP4062066C0 (de) | 2025-09-24 |
| EP4062066B1 EP4062066B1 (de) | 2025-09-24 |
Family
ID=73449098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20807447.6A Active EP4062066B1 (de) | 2019-11-22 | 2020-11-20 | Fluidmaschine, insbesondere hydromaschine |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4062066B1 (de) |
| WO (1) | WO2021099550A1 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4697997A (en) | 1978-05-26 | 1987-10-06 | White Hollis Newcomb Jun | Rotary gerotor hydraulic device with fluid control passageways through the rotor |
| US4639202A (en) * | 1985-02-06 | 1987-01-27 | Mahanay Joseph W | Gerotor device with dual valving plates |
| IT1200382B (it) | 1985-02-08 | 1989-01-18 | Boehringer Biochemia Srl | Sistema di rilevazione e/o dosaggio di parametri clinici per via immuno enzimatica |
| SE540991C2 (sv) | 2013-11-25 | 2019-02-19 | Thordab Ab | Pump/motor innefattande en växelfunktion |
-
2020
- 2020-11-20 WO PCT/EP2020/082851 patent/WO2021099550A1/de not_active Ceased
- 2020-11-20 EP EP20807447.6A patent/EP4062066B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021099550A1 (de) | 2021-05-27 |
| EP4062066C0 (de) | 2025-09-24 |
| EP4062066B1 (de) | 2025-09-24 |
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