EP0921284A2 - Verbesserungen an flüssigkeitsgekühlten Brennkraftmaschinen - Google Patents

Verbesserungen an flüssigkeitsgekühlten Brennkraftmaschinen Download PDF

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Publication number
EP0921284A2
EP0921284A2 EP98309499A EP98309499A EP0921284A2 EP 0921284 A2 EP0921284 A2 EP 0921284A2 EP 98309499 A EP98309499 A EP 98309499A EP 98309499 A EP98309499 A EP 98309499A EP 0921284 A2 EP0921284 A2 EP 0921284A2
Authority
EP
European Patent Office
Prior art keywords
engine
radiator
impeller
drive
chamber
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Withdrawn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
EP98309499A
Other languages
English (en)
French (fr)
Other versions
EP0921284A3 (de
Inventor
Jonathan Alan Sayers
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.)
Concentric Pumps Ltd
Original Assignee
Concentric Pumps Ltd
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 Concentric Pumps Ltd filed Critical Concentric Pumps Ltd
Publication of EP0921284A2 publication Critical patent/EP0921284A2/de
Publication of EP0921284A3 publication Critical patent/EP0921284A3/de
Withdrawn legal-status Critical Current

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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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • 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
    • F01P7/164—Controlling of coolant flow the coolant being liquid by thermostatic control by varying pump speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • 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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • F01P2005/125—Driving auxiliary pumps electrically
    • 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
    • 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
    • F01P2031/00—Fail safe
    • F01P2031/30—Cooling after the engine is stopped
    • 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
    • F01P2070/00—Details
    • 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
    • F01P7/167—Controlling of coolant flow the coolant being liquid by thermostatic control by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0245—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump
    • F04D15/0263—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump the condition being temperature, ingress of humidity or leakage

Definitions

  • This invention relates to liquid cooled internal combustion or I.C. engines. It is conventional to provide a coolant circuit including a radiator allowing heat exchange between the coolant and for example a fan driven flow of ambient air. The coolant is driven from engine to radiator and vice versa via flexible hoses which allow for relative movement of the engine and radiator, by a so-called water pump having an impeller mounted on a drive shaft also carrying a pulley.
  • the impeller is located in a chamber in the engine, on the face of the cylinder block adjacent the radiator, and the pulley is engaged by a vee belt driven from the crankshaft and often also serving to drive an alternator and the fan, in the latter case possibly via an electric clutch allowing the fan to turn or not according to control applied by an engine management system or in simpler versions under the control of a thermostat sensing coolant temperature.
  • the impeller. drive shaft and a plate closing the impeller chamber and containing bearing and seal form a single unit which is replaceable.
  • the usual reasons for replacement are leakage caused by chemicals, dirt or impurities in the coolant, or wear caused either by long use, or quite frequently by improper use such as over tightening the drive belt which places undue load on the bearing or seal.
  • An object of this invention is to provide improvements over the prior art.
  • a liquid cooled I.C. engine cooling system comprises a radiator, and an impeller mounted on a drive shaft and forming part of the radiator assembly.
  • a compartment in the radiator header tank may be used as an impeller chamber, and the chamber may be closed by a plate carrying a bearing and a seal for co-operation with the drive shaft.
  • the drive shaft carries a separate and distinct drive motor.
  • the motor may be under the control of an engine management system or a thermostat and this gives a completely new control in engine management. Hitherto, as far as the applicants are aware, it has only been the coolant fan which has been controlled in this way.
  • the significance of controlling the water pump by the same or a similar system is that power utilization in driving the pump is avoided at times when the pump is unnecessary. that is when the coolant temperature has not risen to a point where heat exchange is required, and moreover rise in engine temperature to the required range can be more rapidly controlled. These factors can lead to substantially improved fuel consumption as compared to what is possible with known designs. Additionally, the system can continue to cool an engine even after the ignition has been turned off - for example to ensure a predetermined non-operating temperature is reached.
  • coolant is used for other purposes for example as part of the heating system of a vehicle.
  • operation of the impeller or an impeller to drive engine coolant via the heating system is required at times when engine cooling is not required, and the invention contemplates the use of multiple impellers and/or valving arrangements allowing diversion of the coolant according to requirements for the different purposes.
  • Multiple impellers can be used in parallel (effectively multiple pumps) or in series thereby effectively to provide a multiple stage pump. Accordingly, for a parallel arrangement or suitable valve arrangement, coolant flow to the radiator can be restricted or eliminated and flow can be directed to other components of a vehicle or engine.
  • Another possibility with the use of an electric motor is to make a magnetic coupling between the impeller and the motor so that the plate carrying the shaft bearing can be completely closed and again eliminate risk of leakage to the exterior. In the event of motor failure. the motor can be replaced without affecting the integrity of the coolant system.
  • the drive motor may be replaced by a pulley engaged with a drive belt so that the impeller is belt driven for example from the engine crankshaft with a magnetic coupling to the impeller and although this is not as readily susceptible of control, it may be considered to have advantages as compared to the conventional arrangements and location of the impeller and water pump.
  • An aspect of the invention encompasses this possibility and also that of using conventional belt drive without even a magnetic coupling, as long as the radiator location of the impeller is employed.
  • the impeller chamber in the header tank or like part of the radiator, it may be located in a chamber housing connected to the radiator in this case the chamber may also form part of a complete unit which is replaceable in case of need.
  • the header tank may have pump components included as part of unitary injection moulded or die-cast structure and additional components assembled thereto.
  • the embodiment illustrated therein has the water pump located in one end of the header tank 10 of a vehicle radiator associated with an I.C. engine.
  • An electric drive motor 12 is mounted on one end face of the header tank with a suitable interposed seal and bearings provided either in the header tank itself or in the drive motor construction. Coolant is drawn in through the inlet 14 located axially and indeed co-axial with the drive motor, and expelled through the outlet 16 which in this instance is of somewhat of a "figure of 8" cross-section, thereby providing a pair of passages.
  • This coolant flow is caused by impeller 18 mounted on drive shaft 20 and housed in an appropriate volute 22.
  • FIG. 7 shows a schematic block diagram of a cooling system according to the invention where it can be seen that motor 12 communicates with a controller 32 such as an engine management system, which controller further comprises a thermo couple 34 for monitoring the engine temperature.
  • controller 32 is used to actuate drive motor 12 thereby to effect pumping by impeller 18 as appropriate and/or as predetermined dependent on the engine speed and/or temperature.
  • the motor shaft 20 here extends normal to the length of the header tank 12.
  • the motor 12 is associated with a cover 24 which provides a seal to the shaft 20, and the cover closes pump housing 26 which forms an equivalent to the volute in the Figure 1 construction.
  • the impeller chamber is formed in the pump housing and the impeller 18 lies in that chamber which is closed by the cover 24.
  • the pump housing includes flange 28 which is bolted face to face against a like flange 30 on the header tank.
  • centrifugal flow impellers Whilst the specific embodiments described use centrifugal flow impellers, this is not essential and axial flow or mixed flow arrangements are possible and may be advantageous where space considerations are critical.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Supercharger (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP98309499A 1997-12-03 1998-11-19 Verbesserungen an flüssigkeitsgekühlten Brennkraftmaschinen Withdrawn EP0921284A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9725621 1997-12-03
GBGB9725621.8A GB9725621D0 (en) 1997-12-03 1997-12-03 Improvements relating to the liquid cooled i.c. engines

Publications (2)

Publication Number Publication Date
EP0921284A2 true EP0921284A2 (de) 1999-06-09
EP0921284A3 EP0921284A3 (de) 2000-08-23

Family

ID=10823064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98309499A Withdrawn EP0921284A3 (de) 1997-12-03 1998-11-19 Verbesserungen an flüssigkeitsgekühlten Brennkraftmaschinen

Country Status (12)

Country Link
EP (1) EP0921284A3 (de)
JP (1) JPH11247657A (de)
KR (1) KR19990062576A (de)
CN (1) CN1218871A (de)
AR (1) AR014053A1 (de)
AU (1) AU9240798A (de)
BR (1) BR9805292A (de)
CA (1) CA2254822A1 (de)
GB (1) GB9725621D0 (de)
ID (1) ID21708A (de)
NZ (1) NZ332759A (de)
ZA (1) ZA9810352B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1146308A2 (de) * 2000-04-12 2001-10-17 Volkswagen Aktiengesellschaft Wärmetauscher mit einem einen Gehäusedeckel aufweisenden Gehäuse
DE102010063264A1 (de) * 2010-12-16 2012-06-21 Mahle International Gmbh Sammelbehälter
WO2016193195A1 (de) * 2015-06-01 2016-12-08 Volkswagen Aktiengesellschaft Kombination eines wärmetauschers und einer pumpe, wärmetauschsystem und kraftfahrzeug
FR3073566A1 (fr) * 2017-11-15 2019-05-17 Renault S.A.S. Procede de distribution d'un fluide dans un moteur a combustion interne et dispositif de pompage pour sa mise en œuvre
JP7045110B1 (ja) 2020-12-09 2022-03-31 崇賢 ▲黄▼ ポンプ付きラジエータ
WO2022157077A1 (de) * 2021-01-20 2022-07-28 HELLA GmbH & Co. KGaA Pumpenanordnung für ein fahrzeug und kühlmittelsystem für ein fahrzeug mit einer pumpenanordnung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100828822B1 (ko) * 2006-12-05 2008-05-09 현대자동차주식회사 연료전지차량의 라디에이터 모듈
DE102011005473A1 (de) * 2011-03-14 2012-09-20 Schaeffler Technologies Gmbh & Co. Kg Regelbare Kühlmittelpumpe
CN112444050A (zh) * 2020-11-30 2021-03-05 东莞汉旭五金塑胶科技有限公司 内置有水泵的整体腔式水冷排
CN115182808B (zh) * 2022-08-11 2023-11-17 台州易宏实业有限公司 一种汽车发动机用节能水泵

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4423705A (en) * 1981-03-26 1984-01-03 Toyo Kogyo Co., Ltd. Cooling system for liquid-cooled internal combustion engines
US4645432A (en) * 1986-02-14 1987-02-24 General Motors Corporation Magnetic drive vehicle coolant pump
DE4117214C2 (de) * 1991-05-27 1997-04-10 Opel Adam Ag Kühlsystem für eine flüssigkeitsgekühlte Brennkraftmaschine
NL9201377A (nl) * 1992-07-30 1994-02-16 Dsm Nv Geintegreerd koelsysteem.
FR2720783B1 (fr) * 1994-06-02 1996-07-12 Valeo Thermique Moteur Sa Dispositif de refroidissement d'un moteur thermique de véhicule automobile.
US5660149A (en) * 1995-12-21 1997-08-26 Siemens Electric Limited Total cooling assembly for I.C. engine-powered vehicles
DE19615511A1 (de) * 1996-04-19 1997-10-23 Wilo Gmbh Kühler eines Kraftfahrzeugverbrennungsmotors

Non-Patent Citations (1)

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

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1146308A2 (de) * 2000-04-12 2001-10-17 Volkswagen Aktiengesellschaft Wärmetauscher mit einem einen Gehäusedeckel aufweisenden Gehäuse
EP1146308A3 (de) * 2000-04-12 2002-06-12 Volkswagen Aktiengesellschaft Wärmetauscher mit einem einen Gehäusedeckel aufweisenden Gehäuse
DE102010063264A1 (de) * 2010-12-16 2012-06-21 Mahle International Gmbh Sammelbehälter
EP2652284A1 (de) * 2010-12-16 2013-10-23 Mahle International GmbH Sammelbehälter
WO2016193195A1 (de) * 2015-06-01 2016-12-08 Volkswagen Aktiengesellschaft Kombination eines wärmetauschers und einer pumpe, wärmetauschsystem und kraftfahrzeug
FR3073566A1 (fr) * 2017-11-15 2019-05-17 Renault S.A.S. Procede de distribution d'un fluide dans un moteur a combustion interne et dispositif de pompage pour sa mise en œuvre
JP7045110B1 (ja) 2020-12-09 2022-03-31 崇賢 ▲黄▼ ポンプ付きラジエータ
JP2022091657A (ja) * 2020-12-09 2022-06-21 崇賢 ▲黄▼ ポンプ付きラジエータ
WO2022157077A1 (de) * 2021-01-20 2022-07-28 HELLA GmbH & Co. KGaA Pumpenanordnung für ein fahrzeug und kühlmittelsystem für ein fahrzeug mit einer pumpenanordnung

Also Published As

Publication number Publication date
ZA9810352B (en) 1999-05-27
BR9805292A (pt) 1999-11-16
EP0921284A3 (de) 2000-08-23
GB9725621D0 (en) 1998-02-04
CA2254822A1 (en) 1999-06-03
AU9240798A (en) 1999-06-24
ID21708A (id) 1999-07-15
CN1218871A (zh) 1999-06-09
JPH11247657A (ja) 1999-09-14
AR014053A1 (es) 2001-01-31
KR19990062576A (ko) 1999-07-26
NZ332759A (en) 2000-06-23

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