GB1584765A - Engine cooling arrangement in a motor vehicle - Google Patents

Engine cooling arrangement in a motor vehicle Download PDF

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Publication number
GB1584765A
GB1584765A GB2263877A GB2263877A GB1584765A GB 1584765 A GB1584765 A GB 1584765A GB 2263877 A GB2263877 A GB 2263877A GB 2263877 A GB2263877 A GB 2263877A GB 1584765 A GB1584765 A GB 1584765A
Authority
GB
United Kingdom
Prior art keywords
engine
radiator
impeller
motor vehicle
shroud
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
Application number
GB2263877A
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.)
Rover Co Ltd
Original Assignee
Rover Co 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 Rover Co Ltd filed Critical Rover Co Ltd
Priority to GB2263877A priority Critical patent/GB1584765A/en
Publication of GB1584765A publication Critical patent/GB1584765A/en
Expired 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
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/06—Guiding or ducting air to, or from, ducted fans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

(54) ENGINE COOLING ARRANGEMENT IN A MOTOR VEHICLE (71) We, BRITISH LEYLAND UK LIMITED, a British Company of Leyland House, 174 Marylebone Road, London, NW1 5AA, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: This invention relates to a motor vehicle.
It is particularly concerned with engines having a liquid cooled reciprocating internal combustion engine having a crankshaft.
According to the present invention there is provided a motor vehicle having a liquid cooled reciprocating internal combustion engine characterised in that: the engine has a crankshaft on which a mixed flow fan impeller is mounted; the impeller is positioned downstream of an air coolable radiator for liquid coolant for the engine the radiator being associated with a shroud extending downstream from the radiator and enclosing the impeller to the extent that substantially all air drawn by the impeller has to pass through the radiator.
A mixed flow fan impeller has a characteristic that air drawn into it is subsequently discharged with both a radial and an axial velocity component (relative to the axis of rotation of the fan). Such an impeller is particularly suited to providing a medium to large discharge against a medium head by contrast with, say, an axial-flow design (which is suited to large discharges against a low head) and a centrifugal design (for small discharges against a large head).
An embodiment of the invention will now be described with reference to the accompanying drawing which is a diagrammatic view of a road vehicle engine and cooling system. Compartment 10 houses an engine 11 which is water cooled. Heated water from the engine is passed through radiator 12 and then returned to the engine.
The radiator has secured to it a shroud 13 with a circular downstream outlet 14. The outlet is filled by a mixed flow fan impeller 15 which is mounted on engine crankshaft 16. The crankshaft has a pulley 17 mounted on it drive alternator 18 and water pump 19 by way of belt 20. The outlet 14 can be incorporated in a shroud attached to the engine to reduce the necessary clearance between fan tips and shroud to a minimum.
With the engine 11 running the impeller 15 is rotated by crankshaft 16 to draw air through the radiator 12 in the direction of the arrows. The shroud 13 improves the efficiency of cooling water in the radiator 12 by the fan. The mixed flow configuration provides for quiet running as well as a flow of air downstream of the impeller for cooling of the engine compartment 10.
WHAT WE CLAIM IS: 1. A motor vehicle having a liquid cooled reciprocating internal combustion engine characterised in that: the engine has a crankshaft on which a mixed flow fan impeller is mounted; the impeller is positioned downstream of an air coolable radiator for liquid coolant for the engine; the radiator being associated with a shroud extending downstream from the radiator and enclosing the impeller to the extent that substantially all air drawn by the impeller has to pass through the radiator.
2. A motor vehicle as claimed in Claim 1 wherein the shroud is attached to the engine.
3. A motor vehicle as hereinbefore described with reference to and as illustrated in, the accompanying drawing.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (3)

  1. **WARNING** start of CLMS field may overlap end of DESC **.
    (54) ENGINE COOLING ARRANGEMENT IN A MOTOR VEHICLE (71) We, BRITISH LEYLAND UK LIMITED, a British Company of Leyland House, 174 Marylebone Road, London, NW1 5AA, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: This invention relates to a motor vehicle.
    It is particularly concerned with engines having a liquid cooled reciprocating internal combustion engine having a crankshaft.
    According to the present invention there is provided a motor vehicle having a liquid cooled reciprocating internal combustion engine characterised in that: the engine has a crankshaft on which a mixed flow fan impeller is mounted; the impeller is positioned downstream of an air coolable radiator for liquid coolant for the engine the radiator being associated with a shroud extending downstream from the radiator and enclosing the impeller to the extent that substantially all air drawn by the impeller has to pass through the radiator.
    A mixed flow fan impeller has a characteristic that air drawn into it is subsequently discharged with both a radial and an axial velocity component (relative to the axis of rotation of the fan). Such an impeller is particularly suited to providing a medium to large discharge against a medium head by contrast with, say, an axial-flow design (which is suited to large discharges against a low head) and a centrifugal design (for small discharges against a large head).
    An embodiment of the invention will now be described with reference to the accompanying drawing which is a diagrammatic view of a road vehicle engine and cooling system. Compartment 10 houses an engine 11 which is water cooled. Heated water from the engine is passed through radiator 12 and then returned to the engine.
    The radiator has secured to it a shroud 13 with a circular downstream outlet 14. The outlet is filled by a mixed flow fan impeller 15 which is mounted on engine crankshaft 16. The crankshaft has a pulley 17 mounted on it drive alternator 18 and water pump 19 by way of belt 20. The outlet 14 can be incorporated in a shroud attached to the engine to reduce the necessary clearance between fan tips and shroud to a minimum.
    With the engine 11 running the impeller
    15 is rotated by crankshaft 16 to draw air through the radiator 12 in the direction of the arrows. The shroud 13 improves the efficiency of cooling water in the radiator 12 by the fan. The mixed flow configuration provides for quiet running as well as a flow of air downstream of the impeller for cooling of the engine compartment 10.
    WHAT WE CLAIM IS: 1. A motor vehicle having a liquid cooled reciprocating internal combustion engine characterised in that: the engine has a crankshaft on which a mixed flow fan impeller is mounted; the impeller is positioned downstream of an air coolable radiator for liquid coolant for the engine; the radiator being associated with a shroud extending downstream from the radiator and enclosing the impeller to the extent that substantially all air drawn by the impeller has to pass through the radiator.
  2. 2. A motor vehicle as claimed in Claim 1 wherein the shroud is attached to the engine.
  3. 3. A motor vehicle as hereinbefore described with reference to and as illustrated in, the accompanying drawing.
GB2263877A 1978-05-17 1978-05-17 Engine cooling arrangement in a motor vehicle Expired GB1584765A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2263877A GB1584765A (en) 1978-05-17 1978-05-17 Engine cooling arrangement in a motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2263877A GB1584765A (en) 1978-05-17 1978-05-17 Engine cooling arrangement in a motor vehicle

Publications (1)

Publication Number Publication Date
GB1584765A true GB1584765A (en) 1981-02-18

Family

ID=10182681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2263877A Expired GB1584765A (en) 1978-05-17 1978-05-17 Engine cooling arrangement in a motor vehicle

Country Status (1)

Country Link
GB (1) GB1584765A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3737391A1 (en) * 1987-11-04 1989-05-18 Kloeckner Humboldt Deutz Ag Air guiding device for a radiator/fan arrangement
US5193608A (en) * 1992-03-25 1993-03-16 Toyo Radiator Co., Ltd. Radiator with fan for motor vehicles
EP0646485A2 (en) * 1993-09-30 1995-04-05 Caterpillar Inc. Independently ducted cooling system
US5520513A (en) * 1990-03-07 1996-05-28 Nippondenso Co., Ltd. Fan apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3737391A1 (en) * 1987-11-04 1989-05-18 Kloeckner Humboldt Deutz Ag Air guiding device for a radiator/fan arrangement
US5520513A (en) * 1990-03-07 1996-05-28 Nippondenso Co., Ltd. Fan apparatus
US5193608A (en) * 1992-03-25 1993-03-16 Toyo Radiator Co., Ltd. Radiator with fan for motor vehicles
EP0646485A2 (en) * 1993-09-30 1995-04-05 Caterpillar Inc. Independently ducted cooling system
EP0646485A3 (en) * 1993-09-30 1995-08-23 Caterpillar Inc Independently ducted cooling system.

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930517