CA2254822A1 - Improvements relating to the liquid cooled i.c. engines - Google Patents
Improvements relating to the liquid cooled i.c. engines Download PDFInfo
- Publication number
- CA2254822A1 CA2254822A1 CA002254822A CA2254822A CA2254822A1 CA 2254822 A1 CA2254822 A1 CA 2254822A1 CA 002254822 A CA002254822 A CA 002254822A CA 2254822 A CA2254822 A CA 2254822A CA 2254822 A1 CA2254822 A1 CA 2254822A1
- Authority
- CA
- Canada
- 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.)
- Abandoned
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
- 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
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)
Abstract
A liquid cooled internal combustion engine cooling system comprising a radiator 10, and an impeller 18 mounted on a drive shaft 20 and forming part of the radiator assembly. Preferably a compartment in the radiator header tank is 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 from the drive motor 12.
Description
CA 022~4822 1998-11-26 KJB/sjp~3290 IMPROVEMENTS RELATING TO THE LIQUID
COOLED I.C. ENGINES
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 viaflexible 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 cr~nk~h~ft 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.
..... .. . . .
CA 022~4822 1998 -11- 26 According to the one aspect of the invention there is provided 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.
Hence, a compartment in the radiator header tank, assuming a vertical flow radiator in this instance, 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.
Preferably, the drive shaft carries a separate and distinct drive motor, which will usually be an electric 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 whereheat 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.
Independence of drive from engine speed also allows water pump operating speed to be selected in terms of efficiency. For example, when an engine is idling and a vehicle is stationary in traffic, it may be desirable for the pump to operate at maximum speed (assuming that speed variation is a possibility with the chosen design) whereas when the vehicle is travelling lower .... .. ..
CA 022~4822 1998-11-26 pump speeds will be possible. This in general is a reverse of what is provided by the conventional arrangements.
Again, whilst the foregoing description is solely in relation to engine cooling, the same possibilities exist where the coolant is used for other purposes for example as part of the heating system of a vehicle. In such instances it maybe that operation of the impeller or an impeller to drive engine coolant via theheating system is required at times when engine cooling is not required, and theinvention 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 elimin~ted 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 elimin~te 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.
However, in a development of magnetic coupling, 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 .. . .. . .. . .
CA 022~4822 1998 -11- 26 possibility and also that of using a conventional belt drive without even a magnetic coupling, as long as the radiator location of the impeller is employed.
Instead of providing 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 invention is more particularly described with reference to the accompanying drawings in which:-FIGURE 1 is a diagr~mm~tic cut-away view showing an end portion of a radiator header tank provided with the invention;
FIGURE 2 is a diagr~mm~tic perspective view of a different embodiment;
FIGURE 3 is an exploded view showing the components used in the Figure 2 construction;
FIGURE 4 is a side elevation of the arrangement shown in Figure l;
FIGURE S is an underneath plan view of the same;
FIGURE 6 is a section taken on the line VI-VI of Figure 4; and FIGURE 7 is a block diagram of a system according to the invention.
Turning first to Figures 1 and 4 to 7, 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 CA 022~4822 1998-11-26 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 drivemotor, 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.
Figure 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 ~he engine temperature. Of course, multiple thermo couples can be used for monitor temperature at different locations. Accordingly, 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.
Turning next to Figures 2 and 3 wherein like reference numerals are used as to those used in Figures 1 and 4-6, for like parts, 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 pumphousing 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.
It will be appreciated that any seal required by an electric motor is much simpler than one required where a shaft is required to project to a drive pulley:
essentially with the electric motor there will be no rotating part projecting to the exterior and the motor can be completely "canned".
Whilst the specific embodiments described use centrifugal flow impellers, this is not essential and axial flow or mixed flow arrangements are possible andmay be advantageous where space considerations are critical.
Further, whilst the invention has been specifically described in relation to location of the impeller in the radiator header tank, different locations can beprovided around the radiator to suit particular requirements particularly in terms of space considerations.
COOLED I.C. ENGINES
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 viaflexible 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 cr~nk~h~ft 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.
..... .. . . .
CA 022~4822 1998 -11- 26 According to the one aspect of the invention there is provided 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.
Hence, a compartment in the radiator header tank, assuming a vertical flow radiator in this instance, 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.
Preferably, the drive shaft carries a separate and distinct drive motor, which will usually be an electric 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 whereheat 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.
Independence of drive from engine speed also allows water pump operating speed to be selected in terms of efficiency. For example, when an engine is idling and a vehicle is stationary in traffic, it may be desirable for the pump to operate at maximum speed (assuming that speed variation is a possibility with the chosen design) whereas when the vehicle is travelling lower .... .. ..
CA 022~4822 1998-11-26 pump speeds will be possible. This in general is a reverse of what is provided by the conventional arrangements.
Again, whilst the foregoing description is solely in relation to engine cooling, the same possibilities exist where the coolant is used for other purposes for example as part of the heating system of a vehicle. In such instances it maybe that operation of the impeller or an impeller to drive engine coolant via theheating system is required at times when engine cooling is not required, and theinvention 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 elimin~ted 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 elimin~te 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.
However, in a development of magnetic coupling, 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 .. . .. . .. . .
CA 022~4822 1998 -11- 26 possibility and also that of using a conventional belt drive without even a magnetic coupling, as long as the radiator location of the impeller is employed.
Instead of providing 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 invention is more particularly described with reference to the accompanying drawings in which:-FIGURE 1 is a diagr~mm~tic cut-away view showing an end portion of a radiator header tank provided with the invention;
FIGURE 2 is a diagr~mm~tic perspective view of a different embodiment;
FIGURE 3 is an exploded view showing the components used in the Figure 2 construction;
FIGURE 4 is a side elevation of the arrangement shown in Figure l;
FIGURE S is an underneath plan view of the same;
FIGURE 6 is a section taken on the line VI-VI of Figure 4; and FIGURE 7 is a block diagram of a system according to the invention.
Turning first to Figures 1 and 4 to 7, 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 CA 022~4822 1998-11-26 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 drivemotor, 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.
Figure 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 ~he engine temperature. Of course, multiple thermo couples can be used for monitor temperature at different locations. Accordingly, 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.
Turning next to Figures 2 and 3 wherein like reference numerals are used as to those used in Figures 1 and 4-6, for like parts, 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 pumphousing 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.
It will be appreciated that any seal required by an electric motor is much simpler than one required where a shaft is required to project to a drive pulley:
essentially with the electric motor there will be no rotating part projecting to the exterior and the motor can be completely "canned".
Whilst the specific embodiments described use centrifugal flow impellers, this is not essential and axial flow or mixed flow arrangements are possible andmay be advantageous where space considerations are critical.
Further, whilst the invention has been specifically described in relation to location of the impeller in the radiator header tank, different locations can beprovided around the radiator to suit particular requirements particularly in terms of space considerations.
Claims (16)
1. A liquid cooled internal combustion engine cooling system comprising a radiator assembly having a radiator, and an impeller mounted on a drive shaft and forming part of the radiator assembly.
2. A system according to Claim 1 wherein the radiator comprises a header tank which is adapted to form a chamber for the impeller.
3. A system according to Claim 2 wherein the chamber is closed by a plate carrying a bearing and a seal for co-operation with the drive shaft.
4. A system according to any preceding claim wherein the drive shaft carries a separate and distinct drive, which is preferably a motor such as an electric motor.
5. A system according to any preceding claim comprising a controller for controlling the operation of the drive in response to predetermine engine temperature characteristics.
6. A system according to Claim 5 wherein the controller comprises part of an engine management system for a vehicle and/or comprises a thermostat which monitors the engine temperature of a vehicle.
7. A system according to Claim 5 or 6 wherein the controller enables an engine to reach a desired operating temperature before actuating the motor thereby to commence cooling of the engine.
8. A system according to any of Claims 5, 6 or 7 wherein the controller enables continued operation of the pump after an engine ignition has been turned off, thereby to ensure continued cooling of an engine.
9. A system according to any preceding claim comprising two or more impellers, and/or valving arrangement allowing diversion of the coolant so that it does not necessarily pass through the radiator.
10. A system according to Claim 9 comprising two or more impellers in parallel, or independent of one another.
11. A system according to Claim 9 or 10 comprising two or more impellers in series with one another thereby to provide a multiple stage pump.
12. A system according to any preceding claim wherein the impeller and motor are magnetically coupled through a relatively stationary and relatively non-magnetic plate.
13. A system according to any preceding claim wherein the drive shaft comprises a pulley operably having a drive belt for co-operation with drive means such as an engine crankshaft thereby to drive the impeller.
14. A system according to any preceding claim wherein a separate chamber housing is provided which is connectable to the radiator so as to form a complete unit.
15. A system according to any preceding claim wherein a radiator header tank is provided having one or more pump components such as a chamber, inlet or outlet for example, formed therein during manufacture.
16. A system according to Claim 15 wherein the header tank is formed by injection moulding or diecasting to provide the one or more pump components.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9725621.8 | 1997-12-03 | ||
| GBGB9725621.8A GB9725621D0 (en) | 1997-12-03 | 1997-12-03 | Improvements relating to the liquid cooled i.c. engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2254822A1 true CA2254822A1 (en) | 1999-06-03 |
Family
ID=10823064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002254822A Abandoned CA2254822A1 (en) | 1997-12-03 | 1998-11-26 | Improvements relating to the liquid cooled i.c. engines |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0921284A3 (en) |
| JP (1) | JPH11247657A (en) |
| KR (1) | KR19990062576A (en) |
| CN (1) | CN1218871A (en) |
| AR (1) | AR014053A1 (en) |
| AU (1) | AU9240798A (en) |
| BR (1) | BR9805292A (en) |
| CA (1) | CA2254822A1 (en) |
| GB (1) | GB9725621D0 (en) |
| ID (1) | ID21708A (en) |
| NZ (1) | NZ332759A (en) |
| ZA (1) | ZA9810352B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10018046A1 (en) * | 2000-04-12 | 2001-11-29 | Volkswagen Ag | Heat exchanger with a housing having a housing cover |
| KR100828822B1 (en) * | 2006-12-05 | 2008-05-09 | 현대자동차주식회사 | Radiator module in fuel cell vehicles |
| DE102010063264A1 (en) * | 2010-12-16 | 2012-06-21 | Mahle International Gmbh | Clippings |
| DE102011005473A1 (en) * | 2011-03-14 | 2012-09-20 | Schaeffler Technologies Gmbh & Co. Kg | Adjustable coolant pump |
| DE102015108597A1 (en) * | 2015-06-01 | 2016-12-01 | Volkswagen Aktiengesellschaft | Combination of a heat exchanger and a pump, heat exchange system and motor vehicle |
| FR3073566B1 (en) * | 2017-11-15 | 2020-07-17 | Renault S.A.S. | METHOD FOR DISPENSING A FLUID IN AN INTERNAL COMBUSTION ENGINE AND PUMPING DEVICE FOR IMPLEMENTING IT |
| CN112444050A (en) * | 2020-11-30 | 2021-03-05 | 东莞汉旭五金塑胶科技有限公司 | Integral cavity type water cooling drainage with built-in water pump |
| CN112393626A (en) | 2020-12-09 | 2021-02-23 | 惠州汉旭五金塑胶科技有限公司 | Liquid cooling radiating water discharge of water inlet multi-runner multi-water collecting box water adding pump |
| DE102021101096A1 (en) * | 2021-01-20 | 2022-07-21 | HELLA GmbH & Co. KGaA | Pump assembly for a vehicle and coolant system for a vehicle with a pump assembly |
| CN115182808B (en) * | 2022-08-11 | 2023-11-17 | 台州易宏实业有限公司 | Energy-saving water pump for automobile engine |
Family Cites Families (7)
| 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 (en) * | 1991-05-27 | 1997-04-10 | Opel Adam Ag | Cooling system for a liquid-cooled internal combustion engine |
| NL9201377A (en) * | 1992-07-30 | 1994-02-16 | Dsm Nv | Integrated cooling system. |
| FR2720783B1 (en) * | 1994-06-02 | 1996-07-12 | Valeo Thermique Moteur Sa | Cooling device for a thermal engine of a motor vehicle. |
| US5660149A (en) * | 1995-12-21 | 1997-08-26 | Siemens Electric Limited | Total cooling assembly for I.C. engine-powered vehicles |
| DE19615511A1 (en) * | 1996-04-19 | 1997-10-23 | Wilo Gmbh | Radiator for motor vehicle IC engine coolant circuit |
-
1997
- 1997-12-03 GB GBGB9725621.8A patent/GB9725621D0/en not_active Ceased
-
1998
- 1998-11-11 NZ NZ332759A patent/NZ332759A/en unknown
- 1998-11-12 ZA ZA9810352A patent/ZA9810352B/en unknown
- 1998-11-16 AU AU92407/98A patent/AU9240798A/en not_active Abandoned
- 1998-11-16 KR KR1019980049094A patent/KR19990062576A/en not_active Application Discontinuation
- 1998-11-19 EP EP98309499A patent/EP0921284A3/en not_active Withdrawn
- 1998-11-26 CA CA002254822A patent/CA2254822A1/en not_active Abandoned
- 1998-11-30 BR BR9805292-6A patent/BR9805292A/en not_active Application Discontinuation
- 1998-12-03 JP JP10344457A patent/JPH11247657A/en active Pending
- 1998-12-03 ID IDP981578A patent/ID21708A/en unknown
- 1998-12-03 AR ARP980106152A patent/AR014053A1/en unknown
- 1998-12-03 CN CN98122750A patent/CN1218871A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ZA9810352B (en) | 1999-05-27 |
| EP0921284A2 (en) | 1999-06-09 |
| BR9805292A (en) | 1999-11-16 |
| AU9240798A (en) | 1999-06-24 |
| AR014053A1 (en) | 2001-01-31 |
| ID21708A (en) | 1999-07-15 |
| EP0921284A3 (en) | 2000-08-23 |
| JPH11247657A (en) | 1999-09-14 |
| CN1218871A (en) | 1999-06-09 |
| NZ332759A (en) | 2000-06-23 |
| KR19990062576A (en) | 1999-07-26 |
| GB9725621D0 (en) | 1998-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20021126 |