EP3091230B1 - Machine a piston hydrostatique - Google Patents

Machine a piston hydrostatique Download PDF

Info

Publication number
EP3091230B1
EP3091230B1 EP16164342.4A EP16164342A EP3091230B1 EP 3091230 B1 EP3091230 B1 EP 3091230B1 EP 16164342 A EP16164342 A EP 16164342A EP 3091230 B1 EP3091230 B1 EP 3091230B1
Authority
EP
European Patent Office
Prior art keywords
piston
sub
machine according
operating
cylinder
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.)
Active
Application number
EP16164342.4A
Other languages
German (de)
English (en)
Other versions
EP3091230A1 (fr
Inventor
Gottfried Hendrix
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3091230A1 publication Critical patent/EP3091230A1/fr
Application granted granted Critical
Publication of EP3091230B1 publication Critical patent/EP3091230B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
    • F04B1/124—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
    • F04B49/16—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 by adjusting the capacity of dead spaces of working chambers
    • 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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0408—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
    • 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
    • F04B1/14—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 stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/143—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
    • F04B3/00—Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage
    • 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
    • F04B49/18—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 by changing the effective cross-section of the working surface of the piston

Definitions

  • the invention relates to a hydrostatic piston machine with adjustable stroke volume according to the preamble of claim 1.
  • piston machines are known from the prior art in which subsets of their cylinders can be completely deactivated. This is done, for example, via valves that are assigned to the cylinders.
  • the cylinders to be deactivated are not alternately connected to the high-pressure side and the low-pressure side of the machine via the valves, but always to one of the two sides - mostly to the low-pressure side. This results in a stepped adjustment option for the stroke volume of the piston machine, the number of stepping options depending on the number of cylinders.
  • aspects of the symmetry of the remaining active cylinders must be taken into account because of the most uniform possible introduction of moments on the circumference and the pulsation of the pressure medium.
  • each piston has an inner piston part and an outer piston part which together delimit a working space of the associated cylinder.
  • the outer piston part can be hydraulically blocked and thereby deactivated.
  • valves are provided for each piston, via which the pressure of a rear space of the outer piston part can be changed. This results in a two-stage adjustment option for the stroke volume of the piston machine.
  • a disadvantage of such piston machines is that only one (outer) sub-piston can be activated and deactivated, while the other (inner) sub-piston always remains active.
  • the invention is based on the object of creating a piston machine in which all partial pistons can be activated and deactivated.
  • the claimed hydrostatic piston machine has at least one - preferably several - pistons which are guided in a respective associated cylinder.
  • Each piston has a first partial piston and a second partial piston which can be moved relative to the first partial piston.
  • each cylinder has a first working chamber and a second working chamber separated therefrom by the piston.
  • Each partial piston delimits an assigned working space with a working surface.
  • the first working space can be activated and deactivated via a first shut-off valve
  • the second working space can be activated and deactivated via a second shut-off valve. This means that each sub-piston of the piston can be activated and deactivated independently of the other sub-piston.
  • the inventive Piston machine is particularly suitable for pre-stressed closed circuits as well as in systems with a charge pump.
  • a transmission results, the piston machine according to the invention always being operated in the stage which results in a maximum efficiency of the transmission.
  • Preferred applications are a direct drive of the crank of a press with creep and rapid traverse, an extruder drive with changing speed, a wing-side motor of a wind turbine drive and a winch drive in ship technology.
  • a rotationally symmetrical and concentric design of the cylinder and the piston including its sub-pistons is particularly preferred.
  • the second sub-piston can encompass the first sub-piston.
  • the possibilities for varying the stroke volume of the piston machine according to the invention are expanded if the piston has a third partial piston which is relatively movable relative to the other partial pistons, and if the cylinder has a third working chamber which is separated from the other working chambers by the piston.
  • the third partial piston delimits the working space with a third working surface.
  • the third working space can be activated and deactivated via a third shut-off valve. This means that each of the three sub-pistons of the piston can be activated and deactivated independently of the other sub-pistons. Further such partial pistons and working spaces are possible and increase the possibilities of varying the stroke volume of the piston machine according to the invention accordingly.
  • each shut-off valve being arranged between a working connection of the piston machine that can be used or serves as an inlet and a branch to the several comparable working spaces of all cylinders.
  • a shut-off valve all assigned working spaces distributed around the circumference can be activated and deactivated, so that a constant introduction of torque of the sub-pistons always takes place on the circumference.
  • the possibility of adjusting the piston machine according to the invention is refined if the first working surface facing the first working space of the first partial piston has a size that does not correspond to the size of the second working surface of the second partial piston facing the second working chamber. Since only the smaller work surface or only the larger work surface or both work surfaces can be activated, there are three levels of adjustment of the stroke volume.
  • the piston has a piston base body which is movable in the cylinder and which is also movable relative to all sub-pistons.
  • the piston base body is arranged essentially on the sides of the partial pistons facing away from the working surfaces.
  • the piston base body is preferably in contact with the inner circumference of the cylinder for guidance, similar to a conventional piston. Then the piston base body has a total cross-sectional area which corresponds to the sum of all working areas.
  • the piston base body can have a contact surface for each partial piston, via which the partial piston in the activated state transmits the force of the pressure medium in the working space from the working surface via the contact surface to the piston base body.
  • a rolling element or a roller can be mounted on the piston base and roll over cams.
  • the piston base body thus has a mechanical coupling to the piston machine according to the invention.
  • a relief channel connected to a housing interior or a tank preferably opens into each contact surface. This enables a relative movement of the piston base body with respect to the assigned deactivated partial piston, since pressure medium or air can flow into an increasing interspace between the piston base body and the partial piston.
  • the first partial piston can be inserted in sections into a recess of the piston base body for its guidance.
  • the recess is preferably - like the entire piston with its partial piston - rotationally symmetrical.
  • the second sub-piston engages around the first sub-piston and if the third sub-piston engages around the piston base body.
  • the first sub-piston can be circular-cylindrical, while the second sub-piston and the third sub-piston are ring-shaped.
  • a check valve can simply be arranged upstream and downstream of each working space in terms of device technology. In the preferred development with the multiple cylinders and the multiple pistons, these check valves are arranged between the branch and each working space.
  • a switching valve can be provided upstream of each working space.
  • a further switching valve is sufficient downstream of each cylinder.
  • one of two different channels serves as the inlet and is arranged upstream, so that a switching valve is required in each of the two channels for each working space.
  • Control slots can also be provided upstream and downstream of the working spaces in a control plate or a distributor plate.
  • Figure 1 shows a cylinder 1 with a piston 2 guided therein, on which a rolling element 4 is mounted. This arrangement is provided several times and is evenly distributed on the circumference of a rotor (not shown) of the first exemplary embodiment of the radial piston machine according to the invention.
  • the pistons 2 are supported via the respective rolling bodies 4 on a lift cam 6 arranged on the outer circumference of the radial piston machine, a plurality of cams 8 being evenly distributed on the lift cam 6.
  • the first embodiment of the radial piston machine according to the invention is used as a pump. It has a low-pressure, inlet-side working connection 10 and a high-pressure, outlet-side further working connection 12.
  • the radial piston pump is connected to a hydrostatic motor 14 in a closed circuit. Since the delivery volume of the first exemplary embodiment of the radial piston pump according to the invention can be adjusted in three stages, the motor 14 can be adjusted in three stages in the case of a constant motor while the drive speed of the radial piston pump remains the same. If the motor 14 is a variable displacement motor, the efficiency of the transmission can be optimized through the three stages.
  • the three-stage adjustment of the delivery volume of the radial piston pump according to the first embodiment is realized in that the piston 2 is designed as a stepped piston and the cylinder 1 as a stepped cylinder. More specifically, both have a central concentric tapered section. As a result, a central first working space A1 and an annular second working space A2 are formed in the cylinder 1.
  • the first working space A1 is delimited by a first working surface A1, which is formed on a first partial piston K1.
  • the second working space R2 is delimited by an annular second working surface A2, which is formed on a second partial piston K2.
  • the first partial piston K1 is circular-cylindrical and peg-like.
  • the second partial piston K2 is ring-shaped and surrounds the first partial piston K1.
  • a piston base body 16 of the piston 2 is guided in the cylinder 1, on its outer (in Figure 1 lower) end portion of the rolling elements 4 is mounted and at its inner (in Figure 1 upper) end section, on the one hand, the first partial piston K1 is inserted into a concentric recess 18 and, on the other hand, the second partial piston K2 can be brought into abutment at the end.
  • the piston base body 16 has a first contact surface 20 for the first partial piston K1 and on its end face facing away from the rolling element 4 has a second contact surface 22 for the second partial piston K2.
  • the two sub-pistons K1, K2 are always in contact with the associated contact surface 20, 22 of the piston base 16, so that with each stroke of the piston 2 in the cylinder 1, both working spaces R1, R2 are always enlarged and reduced.
  • two inlet-side channels 24, 26, each with associated branches 28, 30, are provided downstream of the working connection 10, a shut-off valve 32, 34 being provided in each channel 24, 26 between the working connection 10 and the branch 28, 30.
  • Each shut-off valve 32, 34 is designed as a 2/2-way valve that is shut off in a spring-preloaded basic position, and that in an electrical one Actuator open switch position connects the assigned branch 28, 30 to the working connection 10.
  • the first branch 28 branches to the first working chambers R1 of all cylinders 1, while the second branch 28, 30 branches to the second working chambers R2 of all cylinders 1.
  • only three cylinders 1 have been assumed.
  • a branched relief channel 42 is provided which extends inside the piston base body 16 and which connects a housing interior of the radial piston pump with the two contact surfaces 20, 22.
  • FIG 2 shows the arrangement Figure 1 , the radial piston pump is set to a reduced delivery volume.
  • the radial piston pump is set to a reduced delivery volume.
  • the first working spaces R1 of the radial piston pump are activated, while the (in this exemplary embodiment three) second working spaces R2 are deactivated.
  • the second shut-off valve 34 was closed via its spring.
  • the second sub-pistons K2 thus always remain in the in Figure 2 position shown, while the first partial pistons K1 together with the piston base bodies 16 perform the lifting movement.
  • each working space R1 R2 there is one for each working space R1 R2 on the inlet side and outlet side
  • Check valve 40 is provided. More precisely, a check valve 40 is provided between each branch 28, 30, 38 and the respective working space R1, R2, with the (in this exemplary embodiment three) check valves 40, which are located between the downstream further channel 36 and the deactivated second working spaces R2 of all cylinders 1 are arranged, are always closed in this operating state, since there is always high pressure in the further channel 36, while there is always low pressure in the second working spaces R2. All check valves 40 which are assigned to the first working spaces R1 open and close cyclically in this operating state.
  • FIG 3 shows the arrangement Figures 1 and 2 , the radial piston pump is set to a reduced delivery volume.
  • the radial piston pump is set to a reduced delivery volume.
  • the first shut-off valve 32 was closed via its spring.
  • the first sub-pistons K1 thus always remain in the in Figure 2 position shown, while the second partial piston K2 perform the stroke movement together with the piston base bodies 16.
  • the check valves 40 (three in this exemplary embodiment), which are arranged between the further channel 36 on the outlet side and the deactivated first working spaces R1 of all cylinders 1, are always closed in this operating state, since there is always high pressure in the further channel 36, while in the first working spaces R1 is always low pressure. All check valves 40 which are assigned to the second working spaces R2 open and close cyclically in this operating state.
  • the delivery volume during operation is according to FIG Figure 3 larger than the funding volume when operating in accordance with Figure 2 .
  • the show Figures 1 to 3 the three different stages of the delivery volume of the first embodiment of the radial piston pump according to the invention.
  • FIGS Figures 4 to 6 show, in a respective common representation, a second and a third exemplary embodiment of the radial piston machine according to the invention, which is also operated as a radial piston pump.
  • the operating states or stages shown, the cylinders 1, the pistons 2, the rolling elements 4, the channels 24, 26, 36 with the branches 28, 30, 38 and the two shut-off valves 32, 34 correspond to those of the first exemplary embodiment according to FIGS Figures 1 to 3 .
  • the hydrostatic motor 14 supplied by the radial piston pump also corresponds to the previous exemplary embodiment.
  • Figure 7 shows part of a fourth and a fifth embodiment of the radial piston machine according to the invention. It can be operated bidirectionally with maximum flexibility.
  • the cylinder 1, the piston 2, the rolling element 4, the lift cam 6, and the connection of the working port 10 via the two channels 24, 26 with the cylinder 1 and the common representation of the switching valves 44 with the control level A, B and the distributor plate 48 correspond to the second and third exemplary embodiments according to FIG. 4.
  • the further working connection 12 can also be connected to the first working chambers R1 of all cylinders 1 and the second working chambers R2 of all cylinders 1 via two separate further channels 36.
  • a further shut-off valve 50 and a further branch 38 and a further switching valve 46 or a corresponding slot control are provided in each further channel 36.
  • the Figures 8 to 13 each show in a longitudinal section a cylinder 101 with a piston 102 according to a sixth exemplary embodiment of the radial piston machine according to the invention, which offers further stages of its stroke volume.
  • the piston base body 116 has an additional outermost circumferential third contact surface 122 for an annular third partial piston K3 which, with its circumferential third working surface A3, delimits a third working space R3 of the cylinder 101. While the second partial piston - as in the previous exemplary embodiments as well - rests on the outer circumference of the first partial piston K1, the third partial piston K3 engages around the piston base body 116.
  • FIG 8 shows an operating state in which the first and the second work space R1, R2 are activated, while the third work space R3 is deactivated.
  • Figure 9 shows an operating state in which the first and the third work space R1, R3 are activated, while the second work space R2 is deactivated.
  • Figure 10 shows an operating state in which the second and the third work space R2, R3 are activated, while the first work space R1 is deactivated.
  • Figure 11 shows an operating state in which only the first working space R1 is activated.
  • Figure 12 shows an operating state in which only the second work space R2 is activated.
  • Figure 13 shows an operating state in which only the third work space R3 is activated.
  • Figures 14 and 15 each show in a longitudinal section the cylinder 101 with the piston 102 according to the sixth exemplary embodiment from FIG Figures 8 to 13 .
  • the relief channel 142 of this embodiment has a branch to the three contact surfaces 20, 22, 122, so that with each Deactivated or deactivated partial pistons K1, K2, K3, pressure medium can be sucked in from the interior of the housing into the intermediate space formed between the affected partial piston K1, K2, K3 and the piston base body 116.
  • Figure 14 additionally shows the circuit diagram of the cylinder 101 of a bidirectionally operable radial piston machine.
  • a switching valve 44 on the one hand and a further switching valve 46 on the other hand are assigned to each working space R1, R2, R3, both of which are switched as a function of the flank of the cams 8 of the lift curve 6 that is currently passed.
  • Figure 15 additionally shows the circuit diagram of the cylinder 101 of a radial piston machine which is only intended to be operated in one direction.
  • a slot control with a control plate A, B and a distributor plate 148 can also be provided.
  • a hydrostatic piston machine with a plurality of stepped pistons which are guided in a respective associated cylinder.
  • Each stepped piston has a first partial piston and on the outer circumference at least one further partial piston that can be moved relative to the first partial piston.
  • Each cylinder has a first working chamber and at least one further working chamber separated therefrom by the stepped piston.
  • Each partial piston delimits an assigned working space with a working surface. The first working space can be switched on and off via one or two first switching valves, and each additional working space can be switched on and off via one or two further switching valves. This means that each sub-piston of the stepped piston can can be activated and deactivated independently of the other partial piston.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Hydraulic Motors (AREA)
  • Valve Device For Special Equipments (AREA)

Claims (15)

  1. Machine à pistons hydrostatique comportant au moins un piston (2 ; 102) qui est mobile dans un cylindre associé (1 ; 101), le piston (2 ; 102) comprenant un premier piston partiel (K1) et un deuxième piston partiel (K2) mobile relativement au premier piston partiel (K1), caractérisée en ce que le cylindre (1 ; 101) comprend une première chambre de travail (R1) et une deuxième chambre de travail (R2) séparée de celle-ci par le piston (2 ; 102), chaque piston partiel (K1, K2) délimitant une chambre de travail (R1, R2), et la première chambre de travail (R1) pouvant être activée et désactivée par le biais d'une première soupape d'arrêt (32), et la deuxième chambre de travail (R2) pouvant être activée et désactivée par le biais d'une deuxième soupape d'arrêt (34) .
  2. Machine à pistons selon la revendication 1, le piston (102) comprenant un troisième piston partiel (K3) qui est mobile relativement aux autres pistons partiels (K1, K2), et le cylindre (101) comprenant une troisième chambre de travail (R3) qui est séparée des autres chambres de travail (R1, R2) par le piston (102), et le troisième piston partiel (K3) délimitant la troisième chambre de travail (R3), et la troisième chambre de travail (A3) pouvant être activée et désactivée par le biais d'une troisième soupape d'arrêt.
  3. Machine à pistons selon la revendication 1 ou 2 comportant plusieurs pistons (2 ; 102) et cylindres (1 ; 101), chaque soupape d'arrêt (32, 34) étant disposée entre un raccord de travail (10) de la machine à pistons et une bifurcation (28, 30) vers les plusieurs chambres de travail (R1, R2, R3) similaires de tous les cylindres (1 ; 101).
  4. Machine à pistons selon la revendication 3 comportant d'autres soupapes d'arrêt (50) dont le nombre correspond à celui des pistons partiels (K1, K2, K3) pour chaque cylindre (1 ; 101), chaque autre soupape d'arrêt (50) étant disposée entre un autre raccord de travail (12) de la machine à pistons et une autre bifurcation (38) vers les plusieurs chambres de travail (R1, R2, R3) similaires de tous les cylindres (1 ; 101).
  5. Machine à pistons selon l'une des revendications précédentes, une première surface de travail (A1), tournée vers la première chambre de travail (R1), du premier piston partiel (K1) ayant une taille qui est différente d'une taille d'une deuxième surface de travail (A2), tournée vers la deuxième chambre de travail (R2), du deuxième piston partiel (K2).
  6. Machine à pistons selon l'une des revendications précédentes, le piston (2 ; 102) ayant un corps de base de piston (16 ; 116) mobile dans le cylindre (1 ; 101), lequel corps de base est mobile relativement aux pistons partiels (K1, K2, K3).
  7. Machine à pistons selon les revendications 5 et 6, le corps de base de piston (16 ; 116) ayant une aire en section transversale qui correspond à la somme des surfaces de travail (A1, A2, A3).
  8. Machine à pistons selon la revendication 6 ou la revendication 7, le corps de base de piston (16 ; 116) comprenant une surface d'appui (20, 22, 122) pour chaque piston partiel (K1, K2, K3).
  9. Machine à pistons selon la revendication 8, un canal de détente (42 ; 142) relié à un puits de fluide sous pression débouchant dans chaque surface d'appui (20, 22, 122) .
  10. Machine à pistons selon l'une des revendications 6 à 9, le premier piston partiel (K1) étant inséré dans un évidement (18) du corps de base de piston (16 ; 116).
  11. Machine à pistons selon la revendication 2 et selon l'une des revendications 6 à 8, le deuxième piston partiel (K2) enveloppant le premier piston partiel (K1), et le troisième piston partiel (K3) enveloppant le corps de base de piston (116).
  12. Machine à pistons selon la revendication 11, le premier piston partiel (K1) étant cylindrique circulaire, et le deuxième piston partiel (K2) et le troisième piston partiel (K3) étant annulaires.
  13. Machine à pistons selon l'une des revendications précédentes, une soupape anti-retour (40) étant disposée en amont et en aval de chaque chambre de travail (R1, R2, R3).
  14. Machine à pistons selon l'une des revendications 1 à 12, une soupape de commutation (44) étant prévue en amont de chaque chambre de travail (R1, R2, R3), et une autre soupape de commutation (46) étant prévue en aval de chaque cylindre (1) ou de chaque chambre de travail (R1, R2, R3).
  15. Machine à pistons selon l'une des revendications 1 à 12, une commande par lumières étant prévue en amont et en aval des chambres de travail (R1, R2, R3).
EP16164342.4A 2015-04-23 2016-04-08 Machine a piston hydrostatique Active EP3091230B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015207440.4A DE102015207440A1 (de) 2015-04-23 2015-04-23 Hydrostatische Kolbenmaschine

Publications (2)

Publication Number Publication Date
EP3091230A1 EP3091230A1 (fr) 2016-11-09
EP3091230B1 true EP3091230B1 (fr) 2021-06-09

Family

ID=55794855

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16164342.4A Active EP3091230B1 (fr) 2015-04-23 2016-04-08 Machine a piston hydrostatique

Country Status (3)

Country Link
EP (1) EP3091230B1 (fr)
CN (1) CN106065859B (fr)
DE (1) DE102015207440A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3063482A1 (fr) 2017-05-23 2018-11-29 New Leaf Management Ltd. Procede et systeme d'exploitation d'energie eolienne a l'aide d'un profil aerodynamique captif

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1163145B (de) * 1962-11-15 1964-02-13 Muenchner Motorzubehoer G M B Einrichtung zum Hubveraendern einer Kolbenpumpe
DE1278249B (de) * 1966-11-11 1968-09-19 Schiess Defries Hebezeug Und K Hydraulische Zweistufenhandkolbenpumpe
DE19613080C1 (de) * 1996-04-02 1997-01-23 Waldemar Reimann Pumpe für Flüssigkeiten
JPH10266944A (ja) * 1997-03-21 1998-10-06 Robert Bosch Gmbh ピストンポンプ
JP4138897B2 (ja) * 1997-07-19 2008-08-27 グスタフ・クラウク・ゲーエムベーハー ピストンポンプ
NZ526361A (en) * 2003-05-30 2006-02-24 Fisher & Paykel Appliances Ltd Compressor improvements
DE102004027849A1 (de) * 2004-06-08 2006-01-05 Bosch Rexroth Aktiengesellschaft Antriebseinheit
DE102006052775A1 (de) * 2006-07-19 2008-01-24 Continental Teves Ag & Co. Ohg Kolbenpumpe
DE102009035893A1 (de) 2009-08-03 2011-02-10 Robert Bosch Gmbh Hydromaschine
DE102009055228A1 (de) * 2009-12-23 2011-06-30 Robert Bosch GmbH, 70469 Kolbenpumpe für eine hydraulische Fahrzeugbremsanlage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102015207440A1 (de) 2016-10-27
EP3091230A1 (fr) 2016-11-09
CN106065859B (zh) 2020-08-11
CN106065859A (zh) 2016-11-02

Similar Documents

Publication Publication Date Title
DE4138313C2 (de) Radialkolbenpumpe
DE102011105648A1 (de) Hydraulische Betätigungsvorrichtung für die Betätigung von Kupplungen in insbesondere einem Mehrkupplungsgetriebe für Kraftfahrzeuge
WO2018019622A1 (fr) Système d'entraînement électro-hydrostatique
DE102013221035A1 (de) Hydraulische Steuerungsvorrichtung für ein Automatikgetriebe
DE102016218186A1 (de) Flügelzellenpumpe, Pumpensystem, Automatikgetriebe und Kraftfahrzeug
WO2008106923A2 (fr) Système hydraulique
DE102018120001A1 (de) Digitales Pumpenachsensteuerungssystem
DE102017000523B4 (de) Hydraulikvorrichtung für eine Formgebungsmaschine
DE3803187A1 (de) Rotationskolbenkompressor mit variabler foerderleistung
DE102019204874A1 (de) Umschaltvorrichtung und Schmierpumpe
DE102010020690B4 (de) Hydraulisches Antriebssystem
EP3091230B1 (fr) Machine a piston hydrostatique
DE102015217169A1 (de) Hydrauliksystem für ein Automatikgetriebe
DE102012202904A1 (de) Pumpenanordnung zum Erzeugen eines variablen Volumenstromes
EP2929217B1 (fr) Dispositif destiné à commander le fonctionnement d'un ventilateur appartenant à un système de refroidissement et pouvant être entraîné par un moteur hydraulique
EP3443229B1 (fr) Machine de forgeage radial avec vérin hydraulique
EP2046623B1 (fr) Systemé comprenant un compresseur et une charge dans un véhicule automobile
WO2020099026A1 (fr) Système hydraulique pour boîte de vitesses automatique
DE19804374B4 (de) Axialkolbenmaschine mit Mitteldrucköffnung
DE102016206017A1 (de) Hydraulische Schaltelementanordnung
DE102013007668B4 (de) Hydraulisches Antriebssystem für zwei in etwa parallel angeordnete Zylinder
DE102019127388A1 (de) Fluidversorgung von Unterflügelkammern einer Flügelzellenpumpe
DE102012004303A1 (de) Hydrostatischer Axialkolbenmotor
DE2218391A1 (de) Radialkolbenpumpe
DE102015219726A1 (de) Schrägscheibenmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170509

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ROBERT BOSCH GMBH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502016013171

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: F04B0049180000

Ipc: F04B0001040000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: F04B 1/04 20200101AFI20201106BHEP

Ipc: F04B 49/16 20060101ALI20201106BHEP

Ipc: F04B 3/00 20060101ALI20201106BHEP

Ipc: F04B 49/18 20060101ALI20201106BHEP

INTG Intention to grant announced

Effective date: 20201125

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1400724

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210615

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502016013171

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210909

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210609

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210910

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210909

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211011

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502016013171

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

26N No opposition filed

Effective date: 20220310

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502016013171

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20220408

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220408

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220430

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220408

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220430

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221103

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220408

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1400724

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20160408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210609