WO2002077426A1 - Echangeur thermique - Google Patents

Echangeur thermique Download PDF

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Publication number
WO2002077426A1
WO2002077426A1 PCT/DE2002/000810 DE0200810W WO02077426A1 WO 2002077426 A1 WO2002077426 A1 WO 2002077426A1 DE 0200810 W DE0200810 W DE 0200810W WO 02077426 A1 WO02077426 A1 WO 02077426A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
control valve
heat
flow
cooling
Prior art date
Application number
PCT/DE2002/000810
Other languages
German (de)
English (en)
Inventor
Roland Schmidt
Gerta Rocklage-Marliani
Dirk Vollmer
Nizar Taghouti
Claude Berling
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 WO2002077426A1 publication Critical patent/WO2002077426A1/fr

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
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • 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
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
    • 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
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/40—Oil temperature
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/08—Cabin heater

Definitions

  • the invention is based on a heat exchanger according to the preamble of claim 1.
  • Thermal management of an internal combustion engine and a vehicle i.e. the cooling and heating of units and devices to an optimal operating temperature is of crucial importance for the efficiency and thus for the economy of the “vehicle” system. It is therefore desirable that the devices and units, for example the internal combustion engine of the vehicle, the heating of the passenger compartment reach their optimal operating temperature as quickly as possible and maintain it as far as possible during the entire operation, even in operating areas in which the heat generation in the internal combustion engine is low.
  • a cooling system for a vehicle with an internal combustion engine is known from EP 0 499 071 AI.
  • the cooling system comprises several circuits with assigned heat exchangers.
  • the temperatures of different cooling media are measured and converted into output signals in a central evaluation device processed, through which electrically controllable devices such as speed-controlled pumps, speed-controlled fans, electrically controllable valves and a blind arranged in the air flow path can be controlled.
  • the heat exchanger output or the fan speed is always aligned for all cooling circuits according to the highest demand of one of the cooling circuits.
  • the central heat management ensures that little drive energy is required for pumps and fans to cool and heat the system and that too much thermal energy is not extracted from the system. As a result, the required operating temperatures are quickly reached at startup. Cooling systems of this type are very complex and are composed of a large number of individual components which have to be attached to the vehicle. This is often very difficult due to the cramped installation space.
  • an electrically controllable control valve is arranged on a flow or a return of a heat exchanger, for example a cooler, heating heat exchanger or oil cooler, and combined with this to form a structural unit.
  • a heat exchanger for example a cooler, heating heat exchanger or oil cooler
  • a preassembled heat exchanger unit is produced which can be installed in the motor vehicle with little effort and does not require its own attachment device for the control valve.
  • the logistical effort for the vehicle manufacturer is also reduced.
  • the control valves are controlled in accordance with the requirements of thermal management of an internal combustion engine and a vehicle by a central control unit as a function of the operating and environmental parameters of the internal combustion engine and the cooling circuit.
  • the control valve can advantageously be integrated in the heat exchanger, e.g. by being arranged in a collecting space which serves to distribute the cooling liquid to the cooling channels of the heat exchanger or to collect the cooling liquid after it has passed through the cooling channels.
  • sensors e.g. Temperature sensors and / or pressure sensors can also be integrated in order to record the operating parameters in the vicinity of the control valve.
  • the need-based control of the coolant flows is particularly useful in modern internal combustion engines with further improvements in efficiency, since less heat is generated in these machines, so that in some operating areas a very small amount of heat is available, which is used to heat the passenger compartment, de-icing the windows, and so on Preheating of aggregates and for similar purposes can be used.
  • the control of the coolant circuit of new reciprocating Therefore, internal combustion engines are changing more and more from pure heat dissipation to a targeted heat distribution and at the same time meet the new comfort, consumption and emission requirements.
  • control valves allow continuous adjustment so that the coolant reaches the heat exchangers in precisely metered amounts. According to one embodiment of the invention, therefore, are electrically driven as control valves
  • Proportional valves provided. These valves continuously adjust a hydraulic output variable depending on an electrical input variable. By using proportional valves in a cooling circuit, the flow rate of the coolant through the heat exchanger is constantly adjusted.
  • FIG. 1 is a schematic representation of a cooling circuit of a reciprocating piston internal combustion engine
  • Fig. 2 schematically shows a heat exchanger with a control valve as a structural unit
  • FIG. 3 shows a variant of FIG. 2.
  • An example of a cooling liquid circuit 16 u comprises a cooler 20 which is connected to a water pump 18 via a suction line 30. This conveys cooling liquid through an inlet line 34 into a cylinder block 14 of a reciprocating piston internal combustion engine 10. The cooling liquid passes from the cylinder block 14 into the cylinder head 12 and from there flows back into the cooler 20 via a return flow line 26. The cooler 20 is cooled by airflow. If necessary, a fan 24 becomes active in order to supply the cooler 20 with cooling air.
  • a heating heat exchanger 22 is arranged in which a heating heat exchanger 22 is arranged. With the help of a blower, not shown, this heats up a passenger compartment (not shown) and ventilates and defrosts vehicle windows.
  • the cooling fluid exchanger from heating ⁇ 22 flows to the suction line 30 back.
  • Part of the coolant flow is branched off from the cylinder block 14 and returned to the suction line 30 via an oil cooler line 38, in which an oil cooler 36 is arranged.
  • the oil cooler 36 is connected to an oil circuit 40 of the internal combustion engine 10.
  • a bypass line 28 is provided parallel to the cooler 20, which connects the return flow line 26 to the suction line 30.
  • the flow of the coolant through the cooler 20 is determined by a first control valve 42.
  • a second control valve 44 controls
  • control valve 46 the coolant flow through the oil cooler 36 and a fourth control valve 48 the coolant flow through the bypass line 28.
  • the control valves 42, 44, 46 and 48 which are expediently called
  • an electronic control unit 50 which generally has a microprocessor, as a function of operating parameters, vehicle parameters and environmental parameters, as well as their derivations according to time.
  • control valves 42, 44 and 46 are attached either to a flow 54 or to a return 56 of the associated heat exchanger 20, 22, 36, namely the first control valve 42 on the cooler 20, the second control valve 44 on the heating heat exchanger.
  • Control valves 42, 44, 46 form with the respective heat exchangers 20, 22, 36 a unit, so that they need, no additional ⁇ present hold devices. This also reduces the number of parts and the logistical effort.
  • control valves 42, 44, 46 can also advantageously be integrated in the heat exchanger 20, 22, 36, for example in which they are accommodated in a collecting space 58 of the heat exchangers 20, 22, 36 within the contour of the heat exchangers 20, 22, 36 and thus do not require any additional installation space and no additional holding means.
  • FIG. 2 shows an example of the cooler 20 with the first control valve 42, which is housed on the flow 54.
  • FIG. 3 shows a variant in which the first control valve 42 is accommodated in the collecting space 58 of the cooler 20 and is therefore hardly recognizable from the outside.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

L'invention concerne un échangeur thermique (20, 22, 36) placé dans un circuit de liquide de refroidissement (16) d'un véhicule automobile et comprenant des soupapes de régulation commandées électriquement (42, 44, 46). Selon l'invention, une soupape de régulation (42, 44, 46) est placée au niveau de l'entrée (54) ou du retour (56) de cet échangeur thermique et forme avec lui une unité structurelle.
PCT/DE2002/000810 2001-03-21 2002-03-06 Echangeur thermique WO2002077426A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10113652.8 2001-03-21
DE2001113652 DE10113652A1 (de) 2001-03-21 2001-03-21 Wärmetauscher

Publications (1)

Publication Number Publication Date
WO2002077426A1 true WO2002077426A1 (fr) 2002-10-03

Family

ID=7678322

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/000810 WO2002077426A1 (fr) 2001-03-21 2002-03-06 Echangeur thermique

Country Status (2)

Country Link
DE (1) DE10113652A1 (fr)
WO (1) WO2002077426A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2379972A (en) * 2001-08-20 2003-03-26 Visteon Global Tech Inc Integrated heat pump and vehicle coolant circuit
GB2491595A (en) * 2011-06-07 2012-12-12 Gm Global Tech Operations Inc Engine cooling apparatus comprising a valve provided in a radiator bypass line

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10301314A1 (de) * 2003-01-15 2004-07-29 Behr Gmbh & Co. Kg Kühlkreislauf, insbesondere für ein Kraftfahrzeuggetriebe
US10040335B2 (en) 2016-03-24 2018-08-07 GM Global Technology Operations LLC Thermal management system for a vehicle, and a method of controlling the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0499071A1 (fr) 1991-02-11 1992-08-19 Behr GmbH & Co. Système de refroidissement pour un moteur à combustion interne d'un véhicule
EP0584850A1 (fr) * 1992-07-30 1994-03-02 Dsm N.V. Système de refroidissement intégré
US5353757A (en) * 1992-07-13 1994-10-11 Nippondenso Co., Ltd. Vehicular use cooling apparatus
US5950576A (en) * 1998-06-30 1999-09-14 Siemens Canada Limited Proportional coolant valve
EP0969189A1 (fr) * 1998-07-01 2000-01-05 Siemens Canada Limited Système de refroidissement global pour véhicules possédant un moteur à combustion interne

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0499071A1 (fr) 1991-02-11 1992-08-19 Behr GmbH & Co. Système de refroidissement pour un moteur à combustion interne d'un véhicule
US5353757A (en) * 1992-07-13 1994-10-11 Nippondenso Co., Ltd. Vehicular use cooling apparatus
EP0584850A1 (fr) * 1992-07-30 1994-03-02 Dsm N.V. Système de refroidissement intégré
US5950576A (en) * 1998-06-30 1999-09-14 Siemens Canada Limited Proportional coolant valve
EP0969189A1 (fr) * 1998-07-01 2000-01-05 Siemens Canada Limited Système de refroidissement global pour véhicules possédant un moteur à combustion interne

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2379972A (en) * 2001-08-20 2003-03-26 Visteon Global Tech Inc Integrated heat pump and vehicle coolant circuit
GB2379972B (en) * 2001-08-20 2003-12-10 Visteon Global Tech Inc Coolant circuit of a motor vehicle with a coolant/refrigerant heat exchanger
US6722147B2 (en) 2001-08-20 2004-04-20 Visteon Global Technologies, Inc. Coolant circuit of a motor vehicle having a coolant/refrigerant heat exchanger
GB2491595A (en) * 2011-06-07 2012-12-12 Gm Global Tech Operations Inc Engine cooling apparatus comprising a valve provided in a radiator bypass line

Also Published As

Publication number Publication date
DE10113652A1 (de) 2002-10-02

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