EP2735726B1 - Moteur hydrostatique pour le démarrage d'un moteur à combustion - Google Patents

Moteur hydrostatique pour le démarrage d'un moteur à combustion Download PDF

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Publication number
EP2735726B1
EP2735726B1 EP13191529.0A EP13191529A EP2735726B1 EP 2735726 B1 EP2735726 B1 EP 2735726B1 EP 13191529 A EP13191529 A EP 13191529A EP 2735726 B1 EP2735726 B1 EP 2735726B1
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EP
European Patent Office
Prior art keywords
power unit
internal combustion
displacement volume
combustion engine
engine
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
EP13191529.0A
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German (de)
English (en)
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EP2735726A2 (fr
EP2735726A9 (fr
EP2735726A3 (fr
Inventor
Lukas Krittian
Martin Steigerwald
Martin OBERHÄUSSER
Alfred Langen
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 Hydraulics GmbH and Co KG
Original Assignee
Linde Hydraulics GmbH and Co KG
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
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Publication of EP2735726A2 publication Critical patent/EP2735726A2/fr
Publication of EP2735726A9 publication Critical patent/EP2735726A9/fr
Publication of EP2735726A3 publication Critical patent/EP2735726A3/fr
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Publication of EP2735726B1 publication Critical patent/EP2735726B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N7/00—Starting apparatus having fluid-driven auxiliary engines or apparatus
    • F02N7/06—Starting apparatus having fluid-driven auxiliary engines or apparatus the engines being of reciprocating-piston type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N7/00—Starting apparatus having fluid-driven auxiliary engines or apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/001—Arrangements thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/024—Installations or systems with accumulators used as a supplementary power source, e.g. to store energy in idle periods to balance pump load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
    • F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons

Definitions

  • the invention relates to a hydrostatic drive, which is designed as a variable displacement machine with a continuously adjustable displacement volume and can be operated as a pump and motor and can be drivenly connected to an internal combustion engine, the drive unit in pump operation with one suction side sucking pressure medium from a container and into at least one Conveying consumer-guided delivery line and wherein the engine is designed as a hydraulic starter for starting the internal combustion engine in engine operation, the engine in engine operation on the suction side pressure medium from a pressure medium storage can be supplied.
  • Such hydrostatic drives which are used to supply at least one consumer with pressure medium in pump mode, in which the drive unit is driven by the running internal combustion engine, and a hydraulic starter to start the switched-off internal combustion engine in motor mode, are used in mobile work machines, in particular industrial trucks, Agricultural machines, forest machines and construction machines, for example excavators, wheel and telescopic loaders, tractors, combine harvesters, forage harvesters, sugar beet or potato harvesters, are used.
  • a start-stop function is provided for the internal combustion engine, in which the unloaded internal combustion engine is switched off during work breaks or during work interruptions and is automatically restarted when a torque request is made by a work function or the drive.
  • a hydraulic starter such a start-stop function of the internal combustion engine can be achieved in a robust and reliable manner.
  • a generic hydrostatic drive which in pump operation, the engine driven by an internal combustion engine sucks pressure medium from a container with a suction side, is used to supply consumers with pressure medium and in an engine mode, the engine on the suction side pressure medium from a pressure medium storage is supplied and the engine is driven by the pressure medium supplied from the pressure medium accumulator, serves as a hydraulic starter for starting the switched off internal combustion engine.
  • the U.S. 3,153,899 A discloses a hydrostatic drive which is designed as a variable displacement machine with a continuously adjustable displacement volume and can be operated as a pump and motor and is drivingly connected to an internal combustion engine.
  • the engine has the same high pressure side in motor operation and in pump operation.
  • the drive unit can be adjusted in two opposite directions from a neutral position.
  • the swash plate of the power unit is moved maximally in the direction of control for engine operation by a spring-loaded actuating piston that adjusts the swash plate in the actuating direction for engine operation.
  • the pressure of a pump is applied to the control pressure chamber of an actuating piston, which adjusts the swash plate in the control direction for pump operation, via a control valve controlled by the speed of the internal combustion engine, so that the swash plate swings back into the neutral position.
  • a third adjusting piston prevents the swash plate from pivoting beyond the neutral position onto the pump side and overshooting.
  • the DE 10 2009 056 153 A1 discloses a hydrostatic drive which can be operated as a pump and as a motor and which forms a hydraulic starter of the internal combustion engine when the motor is in operation.
  • pump operation the engine sucks pressure medium from a container on one suction side and conveys and on one delivery side into a delivery line that leads to at least one consumer.
  • engine operation in which the engine is used as a starter for the internal combustion engine, pressure medium is supplied to the drive unit on the delivery side from a pressure medium reservoir.
  • the engine thus has the same high-pressure side in motor operation and in pump operation, which is formed by the delivery side, so that the engine is designed to be adjustable in two opposite adjustment directions starting from a neutral position and is designed as a double-sided adjustable engine.
  • a generic hydrostatic drive which in pump operation, the engine driven by an internal combustion engine with a suction side sucks pressure medium from a container, is used to supply the consumer of a working hydraulics with pressure medium and in an engine mode, the engine on the suction side pressure medium from a Pressure medium accumulator is supplied and the engine is driven by the pressure medium supplied from the pressure medium accumulator, serves as a hydraulic starter for starting the shutdown internal combustion engine.
  • the engine If the engine is designed as a variable displacement machine with an infinitely adjustable displacement volume, the engine must be adjusted to a position with a maximum displacement volume for engine operation in order to enable the delivery of torque to start the internal combustion engine.
  • Figure 2 From the EP 2 308 795 A1 ( Figure 2) is known to connect an adjusting device of the engine that controls the displacement volume with the pressure medium accumulator, so that the displacement volume adjusting device of the engine can be operated with the pressure medium from the pressure medium accumulator when the internal combustion engine is switched off.
  • the pressure medium accumulator is connected via a pressure reducing valve to a feed pressure circuit which, when the internal combustion engine is running, is used to supply the adjustment device of the engine with pressure medium.
  • the feed pressure circuit is connected to the pressure medium accumulator downstream of a valve device that controls the engine operation of the engine by connecting the pressure medium accumulator to the suction side of the engine, so that the displacement volume adjusting device moves into the position with the pressure medium from the pressure medium accumulator immediately before the internal combustion engine starts the maximum displacement volume is adjusted.
  • the present invention is based on the object of providing a hydrostatic drive mechanism of the type mentioned at the outset that can operate at low Construction effort enables the internal combustion engine to be started in the engine operation of the engine in a short period of time.
  • the engine is designed as an axial piston machine in swashplate design and that the engine, which can be operated as a motor and pump, is designed as a one-sided adjustable engine and a displacement volume adjusting device of the engine which controls the displacement volume of the engine and is designed as a swash plate with adjustable inclination the pump operation and for the motor operation starting from a position with a minimum displacement volume in a pivoting direction to a position with a maximum displacement volume can be adjusted, whereby the engine that can be operated as a motor and pump is provided with a pivot spring, by means of which, when the internal combustion engine is switched off, the engine that controls the displacement volume of the engine , designed as a swash plate displacement volume adjusting device is acted upon in the position with maximum displacement volume, so that when the suction side of the engine is applied with pressure means from the pressure medium storage a direct starting process of the internal combustion engine by the engine operation of the engine takes place without immediately prior adjustment of the displacement volume adjusting device of the engine at the beginning of
  • the engine is designed as a one-sided adjustable engine and the displacement volume adjusting device of the engine is, starting from a position with a minimum displacement volume, in an adjusting direction adjustable.
  • Such unilaterally adjustable drives are operated in an open circuit and enable the connected consumers to be supplied with pressure medium with little construction effort and low energy consumption in pump operation.
  • the swing-out spring such an engine, which is designed as a pump adjustable on one side, can be operated in a simple manner as a motor, which is driven on the suction side with pressure medium from the pressure medium reservoir.
  • the pivoting spring engages an actuating piston device of the engine that is operatively connected to the displacement volume adjusting device.
  • a hydrostatic drive unit designed as a variable displacement pump usually has an adjusting piston device with which the displacement volume adjusting device can be adjusted and thus the displacement volume can be changed.
  • the pivoting spring according to the invention can be supplemented in a simple manner with such an adjusting piston device.
  • the actuating piston device can be acted upon by an actuating pressure by means of an actuating valve, with the actuating piston device being relieved of the actuating pressure when the internal combustion engine is switched off.
  • a corresponding actuating pressure can be generated by actuating the control valve to act on the control piston device and thus to set the displacement volume accordingly.
  • the control valve can be designed, for example, as a load-sensing regulating valve that is actuated by the load pressure of the controlled consumers, or can be designed as an electrically controllable control or regulating valve.
  • variable displacement pump present for supplying the working hydraulic system can thus be used in a simple manner as a hydraulic starter for starting the internal combustion engine, in order to enable a start-stop function of the internal combustion engine.
  • the invention further relates to a drive train of a vehicle designed as a mobile work machine with a hydrostatic drive according to the invention driven by an internal combustion engine, the drive forming a hydraulic starter of the internal combustion engine in motor operation and supplying a working hydraulic system of the work machine with pressure medium in pump operation.
  • the hydrostatic drive according to the invention can be used in a vehicle in a simple manner Way, a start-stop function can be formed, which has a short start time of the switched off internal combustion engine.
  • a drive train 1 of a mobile work machine for example an industrial truck or a construction or agricultural machine, with a hydrostatic drive unit 7 according to the invention is shown in a schematic diagram.
  • the drive train 1 consists of an internal combustion engine 2, for example a diesel engine, a traction drive 3 of the vehicle driven by the internal combustion engine 2 and a working hydraulic system 4 driven by the internal combustion engine 2 as hydraulic consumers V.
  • an internal combustion engine 2 for example a diesel engine
  • a traction drive 3 of the vehicle driven by the internal combustion engine 2 and a working hydraulic system 4 driven by the internal combustion engine 2 as hydraulic consumers V.
  • the travel drive 3 is designed as a hydrostatic travel drive, which consists of a travel pump 5 which can be adjusted in terms of delivery volume and which is in driving connection with an output shaft 6 of the internal combustion engine 2 for drive purposes.
  • the drive pump 5 is connected in a closed circuit to one or more hydraulic motors fixed or adjustable in displacement, not shown in detail, which are in operative connection with the driven wheels of the work machine in a manner not shown any more.
  • the travel drive 3 can alternatively be formed as an electric travel drive with an electric generator driven by the internal combustion engine 2 and one or more electric travel motors.
  • the travel drive can be a mechanical travel drive with a mechanical transmission, for example a step-change transmission or a power split transmission or a torque converter transmission.
  • the working hydraulic system 4 includes working functions of the working machine, for example, in the case of an industrial truck, working hydraulics for actuating a load-bearing means on a lifting mast, or in the case of an excavator, for example trained construction machine the work functions of the work equipment formed by a shovel.
  • the hydrostatic drive unit 7 which is designed as an adjusting machine with a continuously adjustable displacement volume and is designed as an axial piston machine in swash plate design.
  • the engine 7 is operated in an open circuit and is in driving connection with the output shaft 6 of the internal combustion engine 2 for driving purposes.
  • the engine 7 is connected on the inlet side to the suction side by means of a suction line 8 with a container 9.
  • a delivery line 10, which is connected on the output side to the delivery side of the engine 7, is connected to a control valve device, not shown, by means of which the hydraulic consumers of the working hydraulic system 4 can be controlled.
  • the control valve device preferably comprises one or more directional control valves for actuating the consumers.
  • a priority valve 12 is also shown, with which the preferred supply of a consumer supplied by the engine 7, for example a hydraulic steering device, can be ensured.
  • the priority valve 12 is connected on the input side to the conveying side of the engine 7 and on the output side is connected to the conveying line 10 led to the working hydraulic system 4 and a conveying line 13 led to the steering device.
  • the priority valve 12 is controlled by a spring 14 and the load pressure of the steering device that is present in a load pressure line 15.
  • the drive train 1 furthermore comprises a feed pump 20 which is connected to the output shaft 6 for driving purposes.
  • the feed pump 20 is designed as a constant pump with a constant displacement volume, which is operated in an open circuit.
  • the feed pump 20 is connected to the suction side via a suction line 21 with the container 9 and conveys into a feed pressure line 22 connected to the delivery side, to which the corresponding consumers of a feed pressure circuit 23 are connected, for example adjusting devices for adjusting the displacement volume of the drive pump 5 and of the engine 7, a feed device of the hydrostatic Travel drive, a brake system of the vehicle and pilot valves for the control valves of the working hydraulic system 4.
  • the feed pressure line 22 is assigned a pressure limiting device 24, for example a pressure limiting valve.
  • the engine 7 of the working hydraulic system 4 is designed as a two-quadrant engine which can be operated as a pump and motor with the same direction of rotation and the same flow direction of the pressure medium.
  • the engine 7 In pump operation, the engine 7 sucks pressure medium from the container 9 via the suction line 8 and conveys the pressure medium via the priority valve 12 into the delivery line 10 of the working hydraulic system 4 or the delivery line 13 of the steering device.
  • the engine 7 In engine operation of the engine 7, in which the engine 7 is designed as a hydraulic starter of a start-stop function for starting the internal combustion engine 2, the engine 7 is driven on the suction side with pressure medium from a pressure medium reservoir 25.
  • the pressure medium reservoir 25 is connected to the delivery line 10 of the engine 7, which is routed to the working hydraulic system 4, by means of a connecting line 26.
  • an electrically actuatable loading valve 27 is arranged, which can be actuated to build up a pressure when activated in a throttle position that throttles the delivery line 10.
  • the loading valve 27 is preferably designed as a retarder valve 28, which is actuated in a throttle position when the vehicle is braking, in order to apply an additional, braking torque to the output shaft 6 formed by the crankshaft by building up a pressure in the delivery line 10, which torque is applied to the motor-driven torque counteracts on the drive pump 5 and thus brakes the vehicle.
  • a throttle device 33 is also arranged to limit the charge volume flow of the pressure medium accumulator 25, which throttle device can be designed as a diaphragm or throttle.
  • the throttle device 33 can here - as shown - be arranged upstream of the shut-off valve 30 or alternatively downstream of the shut-off valve 30.
  • the connecting line 26 between the shut-off valve 30 and the pressure medium reservoir 25 is also assigned a pressure sensor 34.
  • the pressure sensor 34 serves to monitor the charge pressure and thus the charge status of the pressure medium accumulator 25.
  • the connection of the pressure medium accumulator 25 to the suction side of the engine 7 for the engine operation of the engine 7 can be controlled by means of an electrically actuatable control valve 35.
  • the control valve 35 has a blocking position 35a and a throughflow position 35b, the blocking position 35a preferably being leakproof with a blocking valve blocking in the direction of the engine 7.
  • the control valve 35 is arranged in a branch line 36 which is guided from the connecting line 26 between the shut-off valve 30 and the pressure medium accumulator 25 to the suction line 8 leading to the suction side of the engine 7.
  • shut-off valve 37 which blocks in the direction of the container 9 and is preferably designed as a check valve 38 which blocks in the direction of the container.
  • An electronic control device 40 is connected to the pressure sensor 34 on the input side and is used to control the charging valve 27 and the control valve 35.
  • the drive unit 7 designed as an adjusting machine with a continuously variable displacement volume, has a swash plate of an axial piston machine of swash plate design with adjustable inclination for setting the displacement volume as a displacement volume adjusting device 50.
  • the displacement volume adjusting device 50 can be actuated by means of an adjusting piston device 51, which is in operative connection with the displacement volume adjusting device 50.
  • the engine 7 according to the invention is designed as a one-sided adjustable engine, in which the displacement volume adjusting device 50 is adjustable starting from a position with a minimum displacement volume, preferably a position with a displacement volume zero, in an adjustment direction or pivoting direction to a position with a maximum displacement volume.
  • the actuating piston device 51 has an actuating pressure chamber 51a acting in the direction of the maximum displacement volume and an actuating pressure chamber 51b acting in the direction of the minimum displacer volume, the application of an actuating pressure or the discharge of which to the container 9 can be controlled by means of an actuating valve 52.
  • the control valve 52 is connected to the feed pressure line 22 and thus the feed pressure circuit 23 via a branch line 53 for the supply of pressure medium and for the generation of a control pressure in the control pressure chambers 51a and 51b. Furthermore, the control valve 52 has a connection to a container line 54 which is led to the container.
  • the control valve 52 is preferably electrically controllable.
  • control valve 52 is designed as a control valve, with mechanical feedback and feedback 56 of the actual position of the displacement volume adjusting device 50 being provided to the control valve 52.
  • a pivoting spring 55 is provided according to the invention, which is in operative connection with the actuating piston device 51 and the displacement volume adjusting device 50 with the internal combustion engine 2 switched off in the position with maximum displacement volume for the engine operation of the engine 7 is applied.
  • the pivoting spring 55 can be arranged in the actuating pressure chamber 51 a of the actuating piston device 51.
  • the swing-out spring 55 it is achieved that the engine 7, which is operated as a hydraulic starter of the internal combustion engine 2 when the internal combustion engine 7 is switched off, is moved into the position with the maximum displacement volume.
  • the control valve 35 is actuated into the flow position 35b, so that the pressure medium flowing from the pressure medium accumulator 25 charged with pressure medium to the suction side of the engine 7, due to the displacement volume adjusting device 50 already in the position with maximum displacement volume, leads directly to engine operation and a torque output of the engine operated as a motor 7 leads into the drive train 1.
  • Adjusting the displacement volume adjusting device 50 of the engine 7 to the maximum displacement volume immediately preceding the starting process of the internal combustion engine 2 or adjusting the displacement volume adjusting device 50 of the engine 7 to the maximum displacement volume at the beginning of the starting process of the internal combustion engine 7 is therefore not necessary, so that the starting process of the Internal combustion engine 2 with the engine 7 according to the invention takes place in a short period of time in a start-stop function.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Fluid Gearings (AREA)

Claims (4)

  1. Propulseur hydrostatique (7), qui est configuré sous la forme d'une machine d'ajustement ayant un volume de refoulement ajustable en continu et peut être exploité en tant que pompe et moteur et peut être raccordé en entraînement avec un moteur de combustion (2), le propulseur (7) étant configuré pour, en mode d'exploitation de pompe, aspirer avec un côté d'aspiration un agent de pression à partir d'un contenant (9), et le transporter dans une conduite de transport (10) dirigée vers au moins un consommateur (V) et le propulseur (7) étant configuré, en mode d'exploitation de moteur, sous la forme d'un démarreur hydraulique pour le démarrage du moteur de combustion (2), de l'agent de pression issu d'un réservoir d'agent de pression (25) pouvant être introduit dans le propulseur (7) au niveau du côté d'aspiration en mode d'exploitation de moteur, caractérisé en ce que le propulseur (7) est configuré sous la forme d'une machine à pistons axiaux à construction à disque incliné et en ce que le propulseur (7) pouvant être exploité en tant que moteur et pompe est configuré sous la forme d'un propulseur ajustable unilatéralement, et un dispositif d'ajustement du volume de refoulement (50), commandant le volume de refoulement du propulseur, configuré sous la forme d'un disque incliné à inclinaison ajustable, du propulseur (7) pour le mode d'exploitation de pompe et pour le mode d'exploitation de moteur peut être ajusté à partir d'une position avec un volume de refoulement minimal dans une direction de pivotement vers une position avec un volume de refoulement maximal, le propulseur (7) pouvant être exploité en tant que moteur et pompe étant muni d'un ressort de pivotement (55), au moyen duquel, lorsque le moteur à combustion (2) est éteint, le dispositif d'ajustement du volume de refoulement (50), commandant le volume de refoulement du propulseur (7), configuré sous la forme d'un disque incliné, est chargé dans la position avec un volume de refoulement maximal, de telle sorte que lors du chargement du côté d'aspiration du propulseur (7) avec un agent de pression issu du réservoir d'agent de pression (25), un processus de démarrage direct du moteur à combustion (7) par le mode d'exploitation de moteur du propulseur (7) ait lieu sans ajustement préalable immédiatement dans le temps du dispositif d'ajustement du volume de refoulement (50) du propulseur (7).
  2. Propulseur hydrostatique selon la revendication 1, caractérisé en ce que le ressort de pivotement (55) est en prise sur un dispositif à piston d'ajustement (51) du propulseur (7) en liaison active avec le dispositif d'ajustement du volume de refoulement (50).
  3. Propulseur hydrostatique selon la revendication 2, caractérisé en ce que le dispositif à piston d'ajustement (51) peut être chargé au moyen d'une soupape d'ajustement (52) avec une pression d'ajustement, le dispositif à piston d'ajustement (51) étant déchargé de la pression d'ajustement lorsque le moteur à combustion (2) est éteint.
  4. Groupe motopropulseur d'un véhicule configuré sous la forme d'une machine de travail mobile, muni d'un propulseur hydrostatique (7) selon l'une quelconque des revendications précédentes entraîné par un moteur à combustion (2), le propulseur (7) formant en mode d'exploitation de moteur un démarreur hydraulique du moteur à combustion (2) et alimentant en mode d'exploitation de pompe un système hydraulique de travail (4) de la machine de travail avec un agent de pression.
EP13191529.0A 2012-11-22 2013-11-05 Moteur hydrostatique pour le démarrage d'un moteur à combustion Active EP2735726B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012111299.1A DE102012111299A1 (de) 2012-11-22 2012-11-22 Hydrostatisches Triebwerk zum Starten eines Verbrennungsmotors

Publications (4)

Publication Number Publication Date
EP2735726A2 EP2735726A2 (fr) 2014-05-28
EP2735726A9 EP2735726A9 (fr) 2014-07-23
EP2735726A3 EP2735726A3 (fr) 2015-12-09
EP2735726B1 true EP2735726B1 (fr) 2020-09-02

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EP13191529.0A Active EP2735726B1 (fr) 2012-11-22 2013-11-05 Moteur hydrostatique pour le démarrage d'un moteur à combustion

Country Status (4)

Country Link
US (1) US9429129B2 (fr)
EP (1) EP2735726B1 (fr)
CN (1) CN103835855B (fr)
DE (1) DE102012111299A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9745940B2 (en) * 2014-02-28 2017-08-29 Caterpillar Inc. Machine having hydraulic start assist system
US9618014B2 (en) * 2014-02-28 2017-04-11 Caterpillar Inc. Implement system having hydraulic start assist
DE102014215549A1 (de) * 2014-08-06 2016-02-11 Robert Bosch Gmbh Hydrostatischer Antrieb
US9567986B2 (en) * 2014-09-19 2017-02-14 Caterpillar Inc. Flow control for a hydraulic system
CN106594154A (zh) * 2016-12-06 2017-04-26 天津迎南科技有限公司 机电减震机构
CN106594167A (zh) * 2016-12-06 2017-04-26 天津元章科技有限公司 机电混合减震机构
US11225938B2 (en) * 2020-02-28 2022-01-18 OneHydraulics Hydraulic start systems and methods for the same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3153899A (en) * 1962-03-12 1964-10-27 New York Air Brake Co Hydraulic starting and pumping method and apparatus
DE2542244A1 (de) * 1975-09-23 1977-03-31 Langen & Co Hydraulische anlage zum anlassen einer brennkraftmaschine
DE3150533A1 (de) * 1981-12-21 1983-07-07 Salzgitter Maschinen Und Anlagen Ag, 3320 Salzgitter Vorrichtung zur regelung eines hydrostatischen antriebs
CN201206523Y (zh) * 2008-04-07 2009-03-11 宋秀峰 一种液压蓄能起动发动机装置
DE102009048828A1 (de) 2009-10-09 2011-04-14 Linde Material Handling Gmbh Hydraulische Vorrichtung und Verfahren zum Betrieb bei einer mobilen Arbeitsmaschine
DE102009056153A1 (de) * 2009-11-27 2011-06-01 Robert Bosch Gmbh Antriebssystem mit multifunktionaler Energierückgewinnung und Verfahren zu dessen Betrieb
CN102230436B (zh) * 2011-06-14 2013-08-07 江苏科技大学 柴油机液压起动储能装置

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
US9429129B2 (en) 2016-08-30
CN103835855B (zh) 2017-08-29
EP2735726A2 (fr) 2014-05-28
CN103835855A (zh) 2014-06-04
US20140208733A1 (en) 2014-07-31
EP2735726A9 (fr) 2014-07-23
EP2735726A3 (fr) 2015-12-09
DE102012111299A1 (de) 2014-05-22

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