EP1436507B1 - Dickstoffpumpe mit fördermengensteuerung - Google Patents

Dickstoffpumpe mit fördermengensteuerung Download PDF

Info

Publication number
EP1436507B1
EP1436507B1 EP02772362A EP02772362A EP1436507B1 EP 1436507 B1 EP1436507 B1 EP 1436507B1 EP 02772362 A EP02772362 A EP 02772362A EP 02772362 A EP02772362 A EP 02772362A EP 1436507 B1 EP1436507 B1 EP 1436507B1
Authority
EP
European Patent Office
Prior art keywords
rotational speed
displacement volume
pump
thick matter
hydraulic pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02772362A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1436507A1 (de
Inventor
Hartmut Benckert
Paul Von Bäumen
Wolf-Michael Petzold
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.)
Putzmeister Concrete Pumps GmbH
Original Assignee
Putzmeister Concrete Pumps 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 Putzmeister Concrete Pumps GmbH filed Critical Putzmeister Concrete Pumps GmbH
Publication of EP1436507A1 publication Critical patent/EP1436507A1/de
Application granted granted Critical
Publication of EP1436507B1 publication Critical patent/EP1436507B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • F04B49/06—Control using electricity
    • 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
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • 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
    • F04B2201/00—Pump parameters
    • F04B2201/12—Parameters of driving or driven means
    • F04B2201/1204—Position of a rotating inclined plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2201/00—Pump parameters
    • F04B2201/12—Parameters of driving or driven means
    • F04B2201/1205—Position of a non-rotating inclined plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/02—Motor parameters of rotating electric motors
    • F04B2203/0209—Rotational speed
    • 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
    • F04B2203/00—Motor parameters
    • F04B2203/06—Motor parameters of internal combustion engines
    • F04B2203/0605—Rotational speed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/90—Slurry pumps, e.g. concrete

Definitions

  • the invention relates to a slurry pump with a preferably designed as an internal combustion engine drive motor, with at least one can be coupled to the drive motor, preferably designed as a reversible hydraulic pump with variable displacement, with two connected to the hydraulic pump and controlled via this in push-pull, coupled with a respective delivery cylinder hydraulic cylinders, with a speed controller associated with the drive motor and an actuator associated with the hydraulic pump for adjusting the displacement volume and with a control unit for adjusting the engine speed and the displacement volume of the hydraulic pump.
  • the delivery cylinders can be alternately connected to a delivery line via a diverter valve, wherein the delivery line is guided along a distribution boom that can be actuated hydraulically via the hydraulic pump, preferably as a articulated boom.
  • DE-A 196 35 200 In mobile concrete pumps, it is known ( DE-A 196 35 200 ) to use the existing vehicle engine and the vehicle transmission for driving the hydraulic pump during pumping operation. For this purpose, usually a transfer case in the propeller shaft of the vehicle is arranged, which can be optionally switched to driving and pumping operation. When pumping the delivery of the sludge pump can be adjusted by varying the speed of the drive motor. It is further known ( DE-A 195 42 258 ), to use a hydraulic pump with variable displacement volume for the control of the hydraulic cylinder of the slurry pump. The delivery rate can be adjusted there additionally by adjusting the displacement of the hydraulic pump at a given engine speed.
  • the known hydraulic pumps are for example as Axial piston pumps formed with swash plates, the displacement volume can be varied by adjusting the swivel angle of their swash plates.
  • the adjustment of the swashplate pivot angle for example, via a control cylinder, which in turn is controlled via a proportional valve.
  • the pump driver was thus optionally two independently operable actuators for setting a desired thick matter flow available.
  • the volume control is done solely by adjusting the displacement volume. It is not considered that the specific fuel consumption of the drive motor is mainly dependent on the engine speed and that at high speed, the noise emission and the exhaust gas pollution is increased.
  • an actuator associated with the hydraulic pump for adjusting the displacement volume and a control unit for adjusting the engine speed and the displacement volume of the hydraulic pump are known ( US-A-5967756 ), that the control unit has an adjusting member for adjusting the flow rate of the hydraulic pump and responsive to the position of the adjusting control electronics for software-based setpoint input for the speed controller and for the displacement volume actuator.
  • the present invention seeks to improve the known slurry pump with flow adjustment of the type specified in that both the fuel consumption and the noise and exhaust emissions are reduced for a given flow rate.
  • control unit has a preferably designed as a potentiometer adjustment for adjusting the thick matter delivery (F) and responsive to the position of the adjusting control electronics for software-based setpoint input for the speed controller and the displacement volume actuator.
  • control electronics or their software on a base load routine for setting a defined base load speed of the drive motor with connected hydraulic pump, the base load speed over a predetermined adjustment of the setting and the setting of the setting forms a setpoint for the displacement volume of the hydraulic pump.
  • control electronics or their software has an idling routine for setting a defined idle speed of the drive motor with uncoupled hydraulic pump.
  • the idle speed is suitably 20 to 50% of a predetermined maximum speed.
  • the base load speed is advantageously 65 to 80% of a predetermined maximum speed. It has proved to be particularly advantageous if the base load routine is activated in an adjustment range below 65 to 80% of the setting mechanism.
  • a further preferred or alternative variant of the invention provides that the control electronics or their software has a peak load routine for setting a defined displacement volume on the hydraulic pump, the displacement volume remains constant over a predetermined adjustment of the adjusting and the set value of the setting a setpoint for the speed controller above the Base load speed forms.
  • the peak load routine is advantageously activated in an adjustment range above a predetermined setting value of 65 to 80% of the setting member.
  • a preferred embodiment of the invention provides that over the peak load routine at maximum displacement volume of the hydraulic pump speeds between the base load speed and a predetermined maximum speed in accordance with the adjusted set on the flow rate can be adjusted.
  • the maximum speed will suitably be more than 1700 rpm.
  • a sensor for detecting the hydraulic pressure and / or the pump power is arranged on the pressure side of the hydraulic pump and that the control unit or its software to a predetermined pressure or power value responsive limiting routine for reducing the displacement volume.
  • Fig. 1 shown hydraulic circuit is intended for a slurry pump, the two feed cylinder 1,1 ', the frontal openings 2, 2' open into a material feed container, not shown, and alternately during the pressure stroke via a diverter 3 with a delivery line 4 are connectable.
  • a sludge pump designed as a concrete pump
  • the delivery line is guided via a not shown, preferably designed as a kink mast hydraulically actuated concrete distribution boom.
  • the delivery cylinders 1, 1 ' are driven in a push-pull manner via the hydraulic cylinders 5, 5' and the reversible hydraulic pump 6 designed as a swash plate axial piston pump in the exemplary embodiment shown.
  • the delivery pistons 7, 7 ' are connected to the drive pistons 8, 8' of the hydraulic cylinders 5, 5 'via a common piston rod 9, 9'.
  • a water tank 10 Between the delivery cylinders 1, 1 'and the hydraulic cylinders 5, 5' is a water tank 10 through which the piston rods 9, 9 'reach through.
  • the drive cylinders 5, 5 ' are in the embodiment shown on the bottom side via the hydraulic lines 11, 11' of the main circuit with the aid of the hydraulic pump 6 pressurized oil and are hydraulically connected to each other at its rod end via a swing oil line 12.
  • a check valve 13 containing pressure equalization line 14 is arranged.
  • the direction of movement of the drive piston 8, 8 'and thus the delivery piston 7, 7' is thereby reversed, that the swash plates 15, 15 'of the reversing pump 6 triggered by a Um tenusignal swing through its zero position and thus the conveying direction of the pressure oil in the hydraulic lines 11, 11th 'Change the main circuit.
  • the actuation of the conveying direction of the reversing pump 6 determining the main control valve 20 via the electrically tapped Endlagensignale x and xx of the drive cylinder 5.
  • the displacement volume V of the reversible pump 6 and thus the hydraulic flow rate is by the tilt angle of its swash plate 15, 15 'and by the speed N of the preferably designed as a diesel engine drive motor 50 determined.
  • the swashplate angle is adjustable in proportion to a control pressure which actuates the setting cylinder 18 via the lines 17 and 17 'and the proportional valve 20 located in the relevant line path.
  • the high pressure level can be changed in accordance with the switching states of the slurry pump via the shut-off valve 95 and the two pressure relief valves 70, 70 ', while a pressure regulator 71 is provided for setting the low pressure level.
  • the control inputs of the hydraulic cylinders can be connected via the shuttle valve 72 or a directional control valve 73 designed as a flush valve to the respective high-pressure or low-pressure line 11, 11 'of the main circuit.
  • the auxiliary pump 25 charges the closed main circuit via the check valves 75, 75 'and is protected by the pressure relief valve 74.
  • To set the flow rate of the slurry pump are basically two parameters available: The speed N of the coupled with the hydraulic pump 6 output shaft 52 of the drive motor 50 and the defined by the angular position of the swash plate 15 of the hydraulic pump 6 displacement volume V. The setting of these parameters via a control unit 54, which is integrated in a radio remote control to be operated by the pump driver.
  • To adjust the flow rate F is the pump driver trained as a potentiometer adjustment member 56 available that he can adjust by hand between the positions 0 and 100%. With the position 0 no concrete is conveyed, while with the position 100% the maximum flow rate is adjusted. In each intermediate position, a proportion of the maximum delivery amount corresponding to the indicated percentage position is promoted.
  • the control unit further comprises an on the position of the adjuster 56 responsive control electronics 108 for software-based setpoint input for the speed controller of the motor 50 and for the displacement volume of the hydraulic pump 6 defining angular position of the swash plate 15.
  • the actual speed control takes place in the control unit 54.
  • the control unit 54 via a tachometer 100 from the actual speed and is connected via the outputs 101 and 102 to the inputs N + and N- of the motor M.
  • N + means "give more gas”
  • N- means "take gas off”.
  • the actuator 20 for the adjustment of Displacement volume of the hydraulic pump 6 is a proportional valve, via whose various travel positions at the same time the cyclic reversal of the hydraulic pump between the two drive cylinders 5, 5 'takes place.
  • control unit 54 is connected via the connection 103 to the electromagnets of the electrically actuated proportional valve 20.
  • the reaching to the terminals 103 valve current is calculated in the control electronics 108 via the control software and adjusted by pulse width modulation.
  • the control unit 54 also includes a port 104 for a pressure sensor in the hydraulic circuit, which provides additional pressure information P for power control and pressure limiting.
  • the control software is described below on the basis of in Fig. 2a . b illustrated flowchart explained in more detail.
  • the program includes several branches, also referred to as "routines" below.
  • the pump 6 can be switched on and off on the remote control via a switch, not shown.
  • the control unit recognizes the switch-on state of the pump via a signal at the input 80. Via a further input 82, the control unit 54 receives a signal about the operating state of the distributor boom.
  • the adjustment of the rotational speed is effected by the control parameter N- at connection 102 (FIG. Fig. 1 ).
  • the idle speed ensures that the engine can overcome the idling friction without stalling.
  • the valve current can be increased until the largest at the hydraulic pump 6
  • the control software enters the range of the peak load routine 122, with the further increase in the delivery rate can be achieved by increasing the rotational speed N of the motor at maximum displacement volume V of the pump 6 e respective speed is calculated in the program area 124 to form the value N soll and compared with the measured actual value by driving the motor inputs N + and N-.
  • the program parts 120 and 126 are linked on the output side with a test routine 128, in which it is checked by evaluating the pressure signal P detected by the sensor 104 as to whether a predetermined power or pressure limit has been reached. If “yes”, the valve current in the proportional valve 103 for adjusting the displacement volume V in the program part 130 is reduced, if "no", the currently set displacement volume V is maintained. From there, a return to program start 110 takes place. There, the next program part is set in motion.
  • the engine speed at the base load value is kept constant, while the displacement volume V is increased linearly with the set value F of the adjusting member 56.
  • the invention relates to a sludge pump with flow control.
  • the slurry pump has a preferably designed as an internal combustion engine drive motor 50, one can be coupled to the drive motor, preferably designed as a reversible hydraulic pump 6 with variable displacement volume V, and two connected to the hydraulic pump 6, via these push-pull controllable and each with a delivery cylinder 7, 7 'coupled for the thick materials hydraulic cylinder 5, 5' on.
  • the drive motor 50 is associated with a controller for adjusting the speed N, while the hydraulic pump 6 is associated with an actuator 18, 20 for adjusting the displacement volume V.
  • a control unit 54 for adjusting the engine speed N and the displacement volume V is provided.
  • control unit 54 an adjusting member 56 for adjusting the thick matter delivery rate F of the delivery cylinder 7, 7 'and responsive to the position of the adjusting 56 control electronics 108 for software-based setpoint input for the speed controller and the displacement volume actuator 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Rotary Pumps (AREA)
  • Threshing Machine Elements (AREA)
EP02772362A 2001-10-16 2002-10-04 Dickstoffpumpe mit fördermengensteuerung Expired - Lifetime EP1436507B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10150467 2001-10-16
DE10150467A DE10150467A1 (de) 2001-10-16 2001-10-16 Dickstoffpumpe mit Fördermengenregelung
PCT/EP2002/011165 WO2003033911A1 (de) 2001-10-16 2002-10-04 Dickstoffpumpe mit fördermengensteuerung

Publications (2)

Publication Number Publication Date
EP1436507A1 EP1436507A1 (de) 2004-07-14
EP1436507B1 true EP1436507B1 (de) 2008-09-03

Family

ID=7702330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02772362A Expired - Lifetime EP1436507B1 (de) 2001-10-16 2002-10-04 Dickstoffpumpe mit fördermengensteuerung

Country Status (9)

Country Link
US (1) US7322802B2 (ja)
EP (1) EP1436507B1 (ja)
JP (1) JP2005505721A (ja)
KR (1) KR100658249B1 (ja)
CN (1) CN100540897C (ja)
AT (1) ATE407294T1 (ja)
DE (2) DE10150467A1 (ja)
ES (1) ES2312626T3 (ja)
WO (1) WO2003033911A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4180660A1 (de) * 2021-11-15 2023-05-17 Putzmeister Engineering GmbH System und verfahren zum betreiben eines systems

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003290589A1 (en) 2002-11-01 2004-06-07 Pelikan Technologies, Inc. Method and apparatus for body fluid sampling
DE102004015416A1 (de) * 2004-03-26 2005-10-13 Putzmeister Ag Vorrichtung und Verfahren zur Steuerung einer Dickstoffpumpe
DE102004015415A1 (de) * 2004-03-26 2005-10-13 Putzmeister Ag Vorrichtung und Verfahren zur Steuerung einer Zweizylinder-Dickstoffpumpe
DE102004015419A1 (de) * 2004-03-26 2005-10-13 Putzmeister Ag Vorrichtung und Verfahren zur Steuerung einer Dickstoffpumpe
DE102005008217A1 (de) * 2005-02-22 2006-08-31 Putzmeister Ag Hydraulikantrieb, insbesondere für Zweizylinder-Dickstoffpumpen
KR100852546B1 (ko) 2007-01-29 2008-08-18 대우조선해양 주식회사 오일압력을 이용한 잠수함용 디젤기관의 폐기밸브자동제어구조
CN100520036C (zh) * 2007-07-03 2009-07-29 清华大学深圳研究生院 双组元液压自由活塞发动机
KR101386483B1 (ko) 2008-04-14 2014-04-18 엘지전자 주식회사 밀폐형 압축기
JP4989583B2 (ja) * 2008-08-06 2012-08-01 Ｉｈｉ建機株式会社 コンクリートポンプ車のエンジン回転速度制御方法
DE102010001150A1 (de) * 2010-01-22 2011-07-28 Robert Bosch GmbH, 70469 Verfahren zum Steuern der Fördermenge einer Förderpumpe
CN102312827A (zh) * 2010-06-30 2012-01-11 中集车辆（集团）有限公司 混凝土泵及其泵送控制装置与泵送控制方法
FR2965313B1 (fr) * 2010-09-29 2012-09-07 Exel Ind Procede, dispositif et moyen d'entrainement de pompe a double effet a mouvement lineaire alternatif
CN102322147B (zh) * 2011-05-21 2014-01-15 三一重工股份有限公司 一种搅拌车与泵车协同作业系统
DE102011083874A1 (de) * 2011-09-30 2013-04-04 Putzmeister Engineering Gmbh Hydrauliksystem mit Saug-Rücklauffilter
DE102012209142A1 (de) * 2012-05-31 2013-12-05 Putzmeister Engineering Gmbh Hydrauliksystem
CN102913412A (zh) * 2012-10-08 2013-02-06 潍坊优力动力配套有限公司 液压水泵机组
DE102013006333A1 (de) * 2013-04-12 2014-10-16 Liebherr-Betonpumpen Gmbh Zweizylinder-Dickstoffpumpe
DE102013104494B4 (de) 2013-05-02 2023-11-30 MPS-Matter Pumpsysteme GmbH Dickstoffpumpe
CN103557149B (zh) * 2013-10-29 2015-10-28 中联重科股份有限公司 一种砼活塞的控制设备、方法、系统以及工程机械
CN103758650B (zh) * 2013-12-04 2016-08-17 三一重机有限公司 燃油控制方法和装置、以及工程机械
CN103775303B (zh) * 2014-01-07 2016-03-02 徐州徐工施维英机械有限公司 一种机械式砂浆泵
DE102014001981B4 (de) * 2014-02-17 2023-04-27 Robert Bosch Gmbh Dynamischer Sollwertausgleich bei drehzahlvariablen Verstellpumpen
CN105946846A (zh) * 2016-04-25 2016-09-21 北汽福田汽车股份有限公司 一种泵车功率匹配控制方法及系统
CN106089188B (zh) * 2016-06-02 2019-02-26 中国石油大学(华东) 一种泥浆脉冲信号泵噪声实时去除方法
US10543817B2 (en) 2016-12-15 2020-01-28 Schwing America, Inc. Powered rear outrigger systems
NL2019357B1 (en) * 2017-07-27 2019-02-18 Weir Minerals Netherlands Bv Pump system for handling a slurry medium
DE102018208263A1 (de) * 2018-05-25 2019-11-28 Putzmeister Engineering Gmbh Vorrichtung zur Förderung von Dickstoff
DE102018209513B3 (de) * 2018-06-14 2019-10-17 Putzmeister Engineering Gmbh Hydraulikantriebssystem für eine Baustoffpumpe und Baustoffpumpe
DE102018130480A1 (de) * 2018-11-30 2020-06-04 Liebherr-Betonpumpen Gmbh Zweizylinder-Dickstoffpumpe
DE102019214034A1 (de) * 2019-09-13 2021-03-18 Putzmeister Engineering Gmbh Verfahren zum Betreiben einer Arbeitsmaschine und Arbeitsmaschine
DE102021202325A1 (de) 2021-03-10 2022-09-15 Putzmeister Engineering Gmbh Verfahren zum Betreiben einer Bau- und/oder Dickstoffpumpe zum Fördern von Bau- und/oder Dickstoff und Bau- und/oder Dickstoffpumpe zum Fördern von Bau- und/oder Dickstoff

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707990A (en) * 1971-01-11 1973-01-02 Case Co J I Concrete placement apparatus
DE3840892A1 (de) * 1988-12-05 1990-06-07 Putzmeister Maschf Verfahren und vorrichtung zur steuerung einer zweizylinder-dickstoffpumpe
JP2578371B2 (ja) * 1989-09-22 1997-02-05 株式会社小松製作所 可変容量ポンプの容量制御装置
DE4101002A1 (de) * 1990-01-16 1991-07-18 Toyoda Gosei Kk Kassetten oder compakt-disk halter
JP3220579B2 (ja) * 1993-10-05 2001-10-22 新キャタピラー三菱株式会社 建設機械の油圧システム制御方法
JP3520301B2 (ja) * 1995-09-18 2004-04-19 コベルコ建機株式会社 油圧作業機のエンジン回転数の制御方法
DE19542258A1 (de) 1995-11-13 1997-05-15 Putzmeister Maschf Verfahren und Vorrichtung zur Steuerung einer Zweizylinder-Dickstoffpumpe
DE19635200A1 (de) * 1996-08-30 1998-03-05 Putzmeister Ag Fahrbare Dickstoffpumpe
US5967756A (en) * 1997-07-01 1999-10-19 Caterpillar Inc. Power management control system for a hydraulic work machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4180660A1 (de) * 2021-11-15 2023-05-17 Putzmeister Engineering GmbH System und verfahren zum betreiben eines systems

Also Published As

Publication number Publication date
DE10150467A1 (de) 2003-04-17
CN1571886A (zh) 2005-01-26
JP2005505721A (ja) 2005-02-24
WO2003033911A1 (de) 2003-04-24
US20060153700A1 (en) 2006-07-13
EP1436507A1 (de) 2004-07-14
ATE407294T1 (de) 2008-09-15
CN100540897C (zh) 2009-09-16
KR20050033531A (ko) 2005-04-12
ES2312626T3 (es) 2009-03-01
KR100658249B1 (ko) 2006-12-14
DE50212737D1 (de) 2008-10-16
US7322802B2 (en) 2008-01-29

Similar Documents

Publication Publication Date Title
EP1436507B1 (de) Dickstoffpumpe mit fördermengensteuerung
EP2014919B1 (de) Verstellventil für die Verstellung des Fördervolumens einer Verdrängerpumpe
DE3249820C2 (ja)
EP2050961B1 (de) Hydraulisches Antriebssystem
DE3422880A1 (de) Fluidbetaetigte vorrichtung zum steuern der verdraengung einer pumpe
DE3623676A1 (de) Verfahren zur lastabhaengigen steuerung eines hydraulischen antriebes fuer einen an einer brennkraftmaschine angeordneten verdichter
EP0465474B1 (de) Steuerungsanordnung für eine zweizylinder-dickstoffpumpe
DE3001155A1 (de) Kraftstoffeinspritzanlage fuer selbstzuendende brennkraftmaschine
EP1201913B1 (de) Kraftstoffhochdruckpumpe mit veränderlicher Fördermenge
DE3400885A1 (de) Hydrostatischer antrieb
DE69817343T2 (de) Hydraulischer antrieb mit konstantem druck in einer druckleitung
EP1118771B1 (de) Leistungsregelvorrichtung
DE2526148A1 (de) Regeleinrichtung fuer die kraftstoffzufuhr von einspritzbrennkraftmaschinen
WO1985004455A1 (en) Hydraulic system for vehicles
DE3840892A1 (de) Verfahren und vorrichtung zur steuerung einer zweizylinder-dickstoffpumpe
EP1656224A1 (de) Einrichtung zur steuerung des ziehvorgangs bei einer transferpresse
DE3443354A1 (de) Hydraulikanlage
DE4207566C2 (de) Taumelscheibenpumpe mit variabler Förderleistung
DE2400765C3 (de) Vorrichtung zum Steuern der Fördermenge einer im Hub einstellbaren Pumpe
DE3412871A1 (de) Steuereinrichtung fuer ein antriebsaggregat
DE3024399A1 (de) Regeleinrichtung fuer ein aggregat aus mehreren, von einer gemeinsamen primaerenergiequelle angetriebenen pumpe
EP0561153B1 (de) Vorrichtung zur Leistungregelung von wenigstens zwei hydrostatischen Verstellpumpen
DE3539550A1 (de) Verfahren zum regeln des hydrostatischen antriebs der mischertrommel eines fahrmischers
DE2532768A1 (de) Hydraulisches regelsystem
DE3243923C2 (de) Verfahren zur Steuerung der Drehzahl eines Dieselmotors in einem Hydraulikbagger

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

17P Request for examination filed

Effective date: 20040228

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17Q First examination report despatched

Effective date: 20060921

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

Owner name: PUTZMEISTER CONCRETE PUMPS GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK 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

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50212737

Country of ref document: DE

Date of ref document: 20081016

Kind code of ref document: P

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

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: 20080903

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

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: 20080903

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2312626

Country of ref document: ES

Kind code of ref document: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

BERE Be: lapsed

Owner name: PUTZMEISTER CONCRETE PUMPS G.M.B.H.

Effective date: 20081031

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080903

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: 20081203

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 NON-PAYMENT OF DUE FEES

Effective date: 20081031

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: 20080903

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: 20080903

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: 20090203

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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: 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: 20080903

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: 20080903

26N No opposition filed

Effective date: 20090604

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: 20081031

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

Ref country code: LI

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

Effective date: 20081031

Ref country code: CH

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

Effective date: 20081031

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: 20081004

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: 20081203

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

Ref country code: LU

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

Effective date: 20081004

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: 20080903

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: 20081204

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20110113 AND 20110119

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: PUTZMEISTER ENGINEERING GMBH

Effective date: 20110610

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20121031

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20121019

Year of fee payment: 11

Ref country code: GB

Payment date: 20121019

Year of fee payment: 11

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

Effective date: 20131004

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

Ref country code: GB

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

Effective date: 20131004

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140630

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

Ref country code: FR

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

Effective date: 20131031

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20141107

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

Ref country code: ES

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

Effective date: 20131005

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20190930

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20191024

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20191024

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50212737

Country of ref document: DE

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

Ref country code: DE

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

Effective date: 20210501

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 NON-PAYMENT OF DUE FEES

Effective date: 20201004

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 NON-PAYMENT OF DUE FEES

Effective date: 20201004