EP0852664A1 - Procede de regulation du systeme de refroidissement du mecanisme d'entrainement d'une pelle excavatrice a moteur diesel et systeme de refroidissement pour mecanismes d'entrainement de pelles excavatrices a moteur diesel - Google Patents

Procede de regulation du systeme de refroidissement du mecanisme d'entrainement d'une pelle excavatrice a moteur diesel et systeme de refroidissement pour mecanismes d'entrainement de pelles excavatrices a moteur diesel

Info

Publication number
EP0852664A1
EP0852664A1 EP96929239A EP96929239A EP0852664A1 EP 0852664 A1 EP0852664 A1 EP 0852664A1 EP 96929239 A EP96929239 A EP 96929239A EP 96929239 A EP96929239 A EP 96929239A EP 0852664 A1 EP0852664 A1 EP 0852664A1
Authority
EP
European Patent Office
Prior art keywords
fan
diesel engine
flow path
diesel
water temperature
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.)
Withdrawn
Application number
EP96929239A
Other languages
German (de)
English (en)
Inventor
Uwe Esch
Reinhard Emminger
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.)
O and K Mining GmbH
Original Assignee
O and K Mining 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 O and K Mining GmbH filed Critical O and K Mining GmbH
Publication of EP0852664A1 publication Critical patent/EP0852664A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
    • F01P7/044—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using hydraulic drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio

Definitions

  • the invention relates to a method for controlling the cooling device of a particularly powerful diesel engine excavator drive.
  • Excavators are usually driven by at least one diesel engine, which often also drives the fan wheel for the water cooler.
  • the hydraulic pump in turn being driven by the diesel engine.
  • the fan wheel runs continuously as a function of the respective diesel engine speed, which results in power losses of up to 5%, in particular in excavators with more powerful diesel engines (> 600 kW).
  • an order of magnitude of 55 to 60 kW can be achieved.
  • Another disadvantage is that the continuously rotating fan wheel in turn produces not inconsiderable noises depending on the speed.
  • the aim of the subject matter of the invention is to design a method for regulating the cooling device of a particularly powerful diesel engine excavator drive and a cooling device for particularly powerful diesel engine excavator drives, with which on the one hand the power losses can be avoided and on the other hand a reduction in the noise level is brought about .
  • This goal is achieved in a method for regulating the cooling device of a particularly powerful diesel-engine excavator drive, in that a thermostat provided in the area of the diesel engine releases the flow path from the diesel engine to a water cooler interacting with a fan at a predetermined water temperature, one in the Be ⁇ Richly arranged in the flow path temperature measuring device controls the fan in such a way that the speed of the fan is regulated in the range between 0 min '1 and a maximum speed within a predeterminable temperature range above the thermostatically controlled water temperature.
  • a cooling device for, in particular, powerful diesel engine-driven excavator drives with a thermostatically controlled diesel engine, a water cooler, a separately drivable fan and connecting pipes or hoses between the diesel engine a temperature measuring device is provided which is operatively connected to the fan drive via a signal line.
  • the measures according to the invention ensure that the fan only starts when the cooling air is actually required. Compared to the previous mode of operation, the previous power loss of about 5%, which the fan wheel or its drive absorbs, can be saved, particularly in cold regions. Due to the fan wheel now only running as required or in the lower speed ranges, the noise resulting from the overall drive is reduced.
  • the single figure shows a schematic diagram of the diesel engine drive of a hydraulic excavator, not shown.
  • a diesel engine 1, an internal cooling water circuit 2 within the diesel engine 1, a water pump 3 and a thermostat 4 can be seen.
  • the water pump 3 is used to move the cooling medium along its internal flow path until a predetermined water temperature, for example 85 ° C., is reached.
  • the thermostat 4 is designed so that it opens at this temperature and clears the way to the downstream water cooler 5.
  • the diesel engine 1 is connected to the water cooler 5 via hoses 6, 7 so that the flow path of the cooling medium now includes not only the internal flow circuit 2 but also the hose lines 6, 7 and the water cooler 5.
  • a fan wheel 8 is arranged behind the water cooler 5, which in this example is formed by a hydrostatic drive consisting of a fan pump 9 and a hydraulic motor 10.
  • a temperature measuring device 11 is arranged, which is connected via an electrical signal line 12 the controller 13 only indicated here, which is connected in this example as a variable displacement fan pump 9.
  • the fan pump 9 is driven by the diesel engine 1 and conveys hydraulic medium to the hydraulic motor 10 connected to the fan wheel 8, which is provided as a constant motor in this example.
  • the control of the cooling device is provided in such a way that the fan wheel 8 is not driven by the motor 10 until a defined water temperature (for example 87 ° C.) is reached, ie it stands still. After the water temperature of 85 ° C.
  • the thermostat 4 opens and releases the flow path of the cooling medium to the water cooler 5.
  • the controller 13 the fan pump 9 is actuated via the signal line 12 in such a way that it swings out and hydraulic medium is now fed to the air motor 10, which is then slowly increased in speed from the zero position Set the speed at a water temperature of 95 ° C.
  • a temperature window of 8 ° C. is thus formed, within which the fan speed is regulated between zero and a defined maximum speed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un procédé de régulation du système de refroidissement du mécanisme d'entraînement d'une pelle excavatrice à moteur Diesel de puissance particulièrement forte. Lorsque l'eau se trouve à une température prédéfinie, un thermostat (4) prévu dans la zone du moteur Diesel (1) libère la trajectoire d'écoulement menant du moteur Diesel (1) à un radiateur à eau (5) qui coopère avec un ventilateur (8). Un dispositif de mesure de la température (11) monté dans la zone de la trajectoire d'écoulement pilote le ventilateur (8) de manière que dans une plage prédéfinissable de températures supérieures à la température de l'eau régulée par le thermostat, la vitesse de rotation du ventilateur (8) soit réglée entre 0 min-1 et une vitesse de rotation maximale.
EP96929239A 1995-09-26 1996-08-12 Procede de regulation du systeme de refroidissement du mecanisme d'entrainement d'une pelle excavatrice a moteur diesel et systeme de refroidissement pour mecanismes d'entrainement de pelles excavatrices a moteur diesel Withdrawn EP0852664A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19535674A DE19535674A1 (de) 1995-09-26 1995-09-26 Verfahren zur Regelung der Kühleinrichtung eines dieselmotorischen Baggerantriebes sowie Kühleinrichtung für dieselmotorische Baggerantriebe
DE19535674 1995-09-26
PCT/EP1996/003556 WO1997012131A1 (fr) 1995-09-26 1996-08-12 Procede de regulation du systeme de refroidissement du mecanisme d'entrainement d'une pelle excavatrice a moteur diesel et systeme de refroidissement pour mecanismes d'entrainement de pelles excavatrices a moteur diesel

Publications (1)

Publication Number Publication Date
EP0852664A1 true EP0852664A1 (fr) 1998-07-15

Family

ID=7773154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96929239A Withdrawn EP0852664A1 (fr) 1995-09-26 1996-08-12 Procede de regulation du systeme de refroidissement du mecanisme d'entrainement d'une pelle excavatrice a moteur diesel et systeme de refroidissement pour mecanismes d'entrainement de pelles excavatrices a moteur diesel

Country Status (10)

Country Link
EP (1) EP0852664A1 (fr)
JP (1) JPH11511530A (fr)
KR (1) KR19990064447A (fr)
CN (1) CN1169176A (fr)
AU (1) AU6872496A (fr)
BR (1) BR9610697A (fr)
CA (1) CA2232642A1 (fr)
DE (1) DE19535674A1 (fr)
WO (1) WO1997012131A1 (fr)
ZA (1) ZA967586B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19844526A1 (de) * 1998-09-29 2000-03-30 Behr Industrietech Gmbh & Co Antriebsanordnung für den Lüfter eines Fahrzeuges
DE10044607A1 (de) 2000-09-08 2002-04-04 O & K Mining Gmbh Verfahren und Einrichtung zur Regelung eines Lüfterantriebes einer Brennkraftmaschine in Bau- und/oder Arbeitsmaschinen
JP5518589B2 (ja) * 2010-06-18 2014-06-11 日立建機株式会社 作業機械
CN101892894A (zh) * 2010-06-24 2010-11-24 上海三一科技有限公司 一种液压驱动的柴油机散热***及其方法
CN106195606A (zh) * 2016-07-13 2016-12-07 重庆大学 一种油温可调的三维肋管油冷却器
CN111042905B (zh) * 2020-01-15 2021-10-29 重庆西晶源流体技术有限公司 一种车辆风扇冷却液压***及其控制方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062329A (en) * 1976-07-29 1977-12-13 The United States Of America As Represented By The Secretary Of The Army Fan drive system
DE3018076A1 (de) * 1980-05-12 1981-11-19 GST Gesellschaft für Systemtechnik mbH, 4300 Essen Verfahren und vorrichtung zur fluessigkeitskuehlung unterschiedlich belasteter antriebsmaschinen mit zuschaltbarem luefter
JPS58124017A (ja) * 1982-01-19 1983-07-23 Nippon Denso Co Ltd エンジンの冷却系制御装置
GB8614699D0 (en) * 1986-06-17 1986-07-23 Sundstrand Hydratec Ltd Engine cooling systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9712131A1 *

Also Published As

Publication number Publication date
DE19535674A1 (de) 1997-03-27
CN1169176A (zh) 1997-12-31
CA2232642A1 (fr) 1997-04-03
WO1997012131A1 (fr) 1997-04-03
KR19990064447A (ko) 1999-08-05
ZA967586B (en) 1997-03-10
JPH11511530A (ja) 1999-10-05
AU6872496A (en) 1997-04-17
BR9610697A (pt) 1999-09-21

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