GB2172659A - Cooling liquid pump for internal combustion engine - Google Patents

Cooling liquid pump for internal combustion engine Download PDF

Info

Publication number
GB2172659A
GB2172659A GB08507104A GB8507104A GB2172659A GB 2172659 A GB2172659 A GB 2172659A GB 08507104 A GB08507104 A GB 08507104A GB 8507104 A GB8507104 A GB 8507104A GB 2172659 A GB2172659 A GB 2172659A
Authority
GB
United Kingdom
Prior art keywords
pump
pressing
cooling liquid
pressings
region
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Withdrawn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
GB08507104A
Other versions
GB8507104D0 (en
Inventor
Frederick Stanley Johnson
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 GB08507104A priority Critical patent/GB2172659A/en
Publication of GB8507104D0 publication Critical patent/GB8507104D0/en
Publication of GB2172659A publication Critical patent/GB2172659A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • 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
    • F04D29/4266—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps made of sheet metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A cooling liquid pump for an internal combustion engine comprises an impeller 1 which is rotatable on a shaft 5, provided with bearings 4 and seals 6, in a housing defined by two sheet metal pressings 2, 3 which are secured together at their rims 2a, 3a. The pressing 2 has a tubular part 2b for supporting the shaft, and the pressing 3 has tubular parts 3c, 3e for defining the pump inlet and outlet. A third pressing 8 may be spot welded to the pressings 2,3 to increase the stiffness of the housing. <IMAGE>

Description

SPECIFICATION Cooling liquid pump for an internal combustion engine This invention relates to cooling liquid pumps for internal combustion engines.
Typically such a pump is of the centrifugal type and has an impellor rotatable in a cast metal housing secured to or integrated in the cylinder block of the engine.
The invention provides a cooling liquid pump for an internal combustion engine which includes two pressings secured together at their rims which define the pump housing, one of the pressings having a tubular region for supporting the shaft of the rotatable part of the pump.
This construction enables the pump to be of lighter weight and lower cost than hitherto.
The other pressing may have tubular regions defining the inlet and outlet, and a third pressing may be welded on to increase the stiffness of the housing.
A cooling liquid pump contructed in accordance with the invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a section through the pump taken on lines A-A of Fig. 2; and Figure 2 is an end view of the pump.
The pump is for use with an internal combustion engine in conjunction with a heat exchanger. Usually the cooling liquid will be water but the invention is not limited thereto.
The pump is of the centrifugal type. An impellor 1 is located in a chamber defined by two sheet steel pressings 2, 3 which are secured together at their rims 2a, 3a.
The pressing 2 has a tubular region 2b which houses the bearings 4 for the shaft 5 of the impellor and the seals 6 for preventing escape of coolant past the shaft 5. The shaft 5 carries a toothed wheel 7 by means of which the impellor can be driven from a toothed belt.
The rim 2a of the pressing 2 is turned over the rim 3a of the pressing 3 after sealant has been applied. Spot-welds are also made at locations 3b.
The pressing 3 has a tubular region 3c forming a central inlet to the impellor, an involute region 3d leading to another tubular region 3e forming an outlet.
To increase the stiffness of the housing, a third pressing 8 formed by a tubular region 8a and a frusto-conical region 8b is spot-welded at points 8c to the tubular region 2b of the pressing 2 and to parts 8d of the pressing 3 that define the periphery of the pump chamber.
The pressing 2 has three apertures 9 in it, and the pressing 3 is also turned over the periphery of the aperture after sealant has been applied, to provide mounting apertures for the pump.
The pressings 2, 3 are both of sheet steel and both are shaped (without undercuts) to enable them to be pressed by deep drawing from sheet steel. The impellor 1 may also be a pressing.
Among advantages of the resulting pump are low cost and light weight.
Various modifications may of course be made. Thus, it may be possible to dispense with the third pressing 8 since sufficient stiffness may be achieved with the pressings 2, 3 only. Equally the sheet material from which the pressings are made may be other than sheet steel.
1. A cooling liquid pump for an internal combustion engine which includes two pressings secured together at their rims which define the pump housing, one of the pressings having a tubular region for supporting the shaft of the rotatable part of the pump.
2. A cooling liquid pump as claimed in claim 1, wherein the other pressing has tubular regions defining the pump inlet and pump outlet.
3. A cooling liquid pump as claimed in claim 2, wherein the pressing defining the inlet and outlet defines an involute region leading to the outlet.
4. A cooling liquid pump as claimed in any one of claims 1 to 3, wherein a third pressing in the shape of a tubular region connected to a flared region is welded to the shaft-supporting tubular region of one pressing and to the part of that pressing that defines the periphery of the pump chamber, to increase the stiffness of the housing.
5. A cooling liquid pump as claimed in any one of claims 1 to 4, wherein the pressings are of sheet metal.
6. A cooling liquid pump substantially as hereinbefore described with reference to the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (6)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Cooling liquid pump for an internal combustion engine This invention relates to cooling liquid pumps for internal combustion engines. Typically such a pump is of the centrifugal type and has an impellor rotatable in a cast metal housing secured to or integrated in the cylinder block of the engine. The invention provides a cooling liquid pump for an internal combustion engine which includes two pressings secured together at their rims which define the pump housing, one of the pressings having a tubular region for supporting the shaft of the rotatable part of the pump. This construction enables the pump to be of lighter weight and lower cost than hitherto. The other pressing may have tubular regions defining the inlet and outlet, and a third pressing may be welded on to increase the stiffness of the housing. A cooling liquid pump contructed in accordance with the invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a section through the pump taken on lines A-A of Fig. 2; and Figure 2 is an end view of the pump. The pump is for use with an internal combustion engine in conjunction with a heat exchanger. Usually the cooling liquid will be water but the invention is not limited thereto. The pump is of the centrifugal type. An impellor 1 is located in a chamber defined by two sheet steel pressings 2, 3 which are secured together at their rims 2a, 3a. The pressing 2 has a tubular region 2b which houses the bearings 4 for the shaft 5 of the impellor and the seals 6 for preventing escape of coolant past the shaft 5. The shaft 5 carries a toothed wheel 7 by means of which the impellor can be driven from a toothed belt. The rim 2a of the pressing 2 is turned over the rim 3a of the pressing 3 after sealant has been applied. Spot-welds are also made at locations 3b. The pressing 3 has a tubular region 3c forming a central inlet to the impellor, an involute region 3d leading to another tubular region 3e forming an outlet. To increase the stiffness of the housing, a third pressing 8 formed by a tubular region 8a and a frusto-conical region 8b is spot-welded at points 8c to the tubular region 2b of the pressing 2 and to parts 8d of the pressing 3 that define the periphery of the pump chamber. The pressing 2 has three apertures 9 in it, and the pressing 3 is also turned over the periphery of the aperture after sealant has been applied, to provide mounting apertures for the pump. The pressings 2, 3 are both of sheet steel and both are shaped (without undercuts) to enable them to be pressed by deep drawing from sheet steel. The impellor 1 may also be a pressing. Among advantages of the resulting pump are low cost and light weight. Various modifications may of course be made. Thus, it may be possible to dispense with the third pressing 8 since sufficient stiffness may be achieved with the pressings 2, 3 only. Equally the sheet material from which the pressings are made may be other than sheet steel. CLAIMS
1. A cooling liquid pump for an internal combustion engine which includes two pressings secured together at their rims which define the pump housing, one of the pressings having a tubular region for supporting the shaft of the rotatable part of the pump.
2. A cooling liquid pump as claimed in claim 1, wherein the other pressing has tubular regions defining the pump inlet and pump outlet.
3. A cooling liquid pump as claimed in claim 2, wherein the pressing defining the inlet and outlet defines an involute region leading to the outlet.
4. A cooling liquid pump as claimed in any one of claims 1 to 3, wherein a third pressing in the shape of a tubular region connected to a flared region is welded to the shaft-supporting tubular region of one pressing and to the part of that pressing that defines the periphery of the pump chamber, to increase the stiffness of the housing.
5. A cooling liquid pump as claimed in any one of claims 1 to 4, wherein the pressings are of sheet metal.
6. A cooling liquid pump substantially as hereinbefore described with reference to the accompanying drawings.
GB08507104A 1985-03-19 1985-03-19 Cooling liquid pump for internal combustion engine Withdrawn GB2172659A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08507104A GB2172659A (en) 1985-03-19 1985-03-19 Cooling liquid pump for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08507104A GB2172659A (en) 1985-03-19 1985-03-19 Cooling liquid pump for internal combustion engine

Publications (2)

Publication Number Publication Date
GB8507104D0 GB8507104D0 (en) 1985-04-24
GB2172659A true GB2172659A (en) 1986-09-24

Family

ID=10576250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08507104A Withdrawn GB2172659A (en) 1985-03-19 1985-03-19 Cooling liquid pump for internal combustion engine

Country Status (1)

Country Link
GB (1) GB2172659A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768923A (en) * 1987-06-09 1988-09-06 General Motors Corporation Combined water pump, bearing and seal assembly
DE4001383A1 (en) * 1989-01-19 1990-07-26 Ebara Corp Method of forming casing of centrifugal pump - is formed in one piece from steel plate by deep drawing, female dies and press forming
EP0413176A2 (en) * 1989-08-18 1991-02-20 Ebara Corporation Metal plate stator case, particularly for radial centrifugal pumps
DE10021057A1 (en) * 2000-04-28 2001-11-15 Grundfos As Centrifugal pump for coolant or lubricant has rear or front cover disk of pump wheel with flow exits on outflow-side wall regions between blades
DE10347302A1 (en) * 2003-10-08 2005-05-12 Siemens Ag Spiral housing for a centrifugal pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB662105A (en) * 1949-06-23 1951-11-28 Karl Wernert Improved casings of artificial material for single stage centrifugal pumps
GB977174A (en) * 1962-01-25 1964-12-02 Kurt Julius Heinicke Improvements in or relating to radial flow pumps
US3620042A (en) * 1969-09-02 1971-11-16 Airtex Products Div Sheet metal water pump
GB2122259A (en) * 1982-03-23 1984-01-11 Grundfos As Casings for centrifugal pumps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB662105A (en) * 1949-06-23 1951-11-28 Karl Wernert Improved casings of artificial material for single stage centrifugal pumps
GB977174A (en) * 1962-01-25 1964-12-02 Kurt Julius Heinicke Improvements in or relating to radial flow pumps
US3620042A (en) * 1969-09-02 1971-11-16 Airtex Products Div Sheet metal water pump
GB2122259A (en) * 1982-03-23 1984-01-11 Grundfos As Casings for centrifugal pumps

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768923A (en) * 1987-06-09 1988-09-06 General Motors Corporation Combined water pump, bearing and seal assembly
DE3819180A1 (en) * 1987-06-09 1988-12-29 Gen Motors Corp BEARING SEALING ARRANGEMENT FOR A WATER PUMP
DE4001383A1 (en) * 1989-01-19 1990-07-26 Ebara Corp Method of forming casing of centrifugal pump - is formed in one piece from steel plate by deep drawing, female dies and press forming
EP0413176A2 (en) * 1989-08-18 1991-02-20 Ebara Corporation Metal plate stator case, particularly for radial centrifugal pumps
EP0413176A3 (en) * 1989-08-18 1992-03-04 Tiziano Carretta Metal plate stator case, particularly for radial centrifugal pumps
DE10021057A1 (en) * 2000-04-28 2001-11-15 Grundfos As Centrifugal pump for coolant or lubricant has rear or front cover disk of pump wheel with flow exits on outflow-side wall regions between blades
DE10347302A1 (en) * 2003-10-08 2005-05-12 Siemens Ag Spiral housing for a centrifugal pump

Also Published As

Publication number Publication date
GB8507104D0 (en) 1985-04-24

Similar Documents

Publication Publication Date Title
US4155333A (en) Centrifugal water pump for internal combustion engines
JP2665635B2 (en) Coolant pump
EP1624196B1 (en) Shroud and blower using the same
US4925367A (en) Engine block water pump assembly
GB2172659A (en) Cooling liquid pump for internal combustion engine
JPH05195770A (en) Journal assembly
US3642062A (en) Cooling installation for liquid colled internal combustion engine for driving in particular combat-type vehicles
RU2145286C1 (en) Automobile drive set
US5873342A (en) Drive unit with internal combustion engine and hydrodynamic retarder
DK163768B (en) CLEAN-ELECTRIC MOTOR
RU2158686C2 (en) Automobile drive unit
KR0177379B1 (en) Fluid turbine
FR2521215A1 (en) COOLING DEVICE, PARTICULARLY FOR AN INTERNAL COMBUSTION ENGINE, LIQUID COOLED
US5613472A (en) Drive unit with internal combustion engine and hydrodynamic retarder
US2257867A (en) Water circulator
JP2001020712A (en) Pump housing for internal combustion engine
US5758619A (en) Drive unit with internal combustion engine and hydrodynamic retarder
CA2076523A1 (en) Spiral housing made of sheet steel
US3220640A (en) Fluid coupling for engine driven fan
GB2042075A (en) A direct drive engine and pump combination
US4655686A (en) Air conveying device on a radiator for water-cooled internal combustion engines
GB1584765A (en) Engine cooling arrangement in a motor vehicle
RU2171919C2 (en) Case for liquid supply mechanism
US1711298A (en) Pump mechanism
JP2506677Y2 (en) Cooling fan mounting structure

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)