US2011031A - Strainer for automobile cooling systems - Google Patents

Strainer for automobile cooling systems Download PDF

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Publication number
US2011031A
US2011031A US722349A US72234934A US2011031A US 2011031 A US2011031 A US 2011031A US 722349 A US722349 A US 722349A US 72234934 A US72234934 A US 72234934A US 2011031 A US2011031 A US 2011031A
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Prior art keywords
strainer
casing
screen
outlet
neck
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US722349A
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William T Birch
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements

Definitions

  • This invention relates particularly to strainers for cooling systems of automotive engines, or the like, to remove from the cooling water such foreign matter as is likely to become deposited in the radiator "of an automobile, and conteniplates the removal of emulsified oil, other gummy matter, and the dirt usually carried by the water of the cooling system.
  • Figure l is a diagrammatic showing of the strainer inposition in the cooling system of an engine.
  • Figure 2 is a sectional View of the strainer
  • Figure 4 is a perspective view of the removable cartridge of the strainer shown in Figure l, K
  • FIG. 5 is a developed View of the supporting cage of the cartridgeshown in Figuree.
  • Figure 6 is a sectional Viewof a rnodiedl form of the strainer.
  • the strainer shown in Figure 3 comprises a hollow case lil provided with means dening an inlet neck ll and an outlet neck l2 for connection in the cooling system of the internal combustion engine of an automobile by the rubber hose lusually employed in such a system.
  • a wall i4 provides a partition separating the inlet and outlet conduits of the strainer, and the wall is apertured at l5 to provide a supporting seat for a strainer cartridge i6, and to provide a guiding support for the cartridge as it is being removed for inspection.
  • VSince the fluid pressure on the inlet and outlet faces of the wall lil is substantially equal and opposite, because the wall is exposed to the ngoing and the outgoing fluid, the wall may be made relatively thin.
  • the wall lil bisects an upstanding portion il of the casing which communicates with a horizontally extending and open-ended elongated portion i3 adapted to house the cartridge i6.
  • the casing l0 may be -a light casting or a 55 stamping, and the elongated portion I8 may be provided with aninwardly extending bent annular lip i9 which is screwethreaded to receive a closure member.
  • End caps 2t are threaded in the casing to pron vide closure members therefor, and the caps are "5 each provided with'a threaded annular flange il which denes a recess to receive an end oi the cartridge i5 for support by the flange.
  • the cartridge' i6 comprises a screen 22 housed in and supported. by a sheet-metal cage 23.
  • a 10 blank of sheet metal is cutto the shape shown in Figure 5, the screen 22 is then laid on the open-work form, and the blank is bent to the circular shape shown in Figure 4,' and the screen M is suitably secured to the ribs 2li or to certain or the Eat ring portions 25 and 20 ⁇ of the cage,
  • the cage 23 comprises the at ring portions A25, 2S and 2l con'- necteol by the ribs 24, and that the ring Z cooperates with the wall lll to ce a partition Separating the inlet and the outlet olf-the casing.
  • the rings 25 and El, with their-connecting ribs expand the rings 2 and 25 and are adapted to lforrn sealing means ccoperable with the flanges 2 l', and provide a support for the 25 cartridge I6 while it is being withdrawn from the casingupon the withdrawing ci either of the end caps.
  • Fluid enters by way of the neck il passes vthrough the port defined by the rings 2l and 25 and the connecting ribs 24 against the 30 inner surface of the screen 22, and then leaves by the outlet neck i2.
  • the foreign matter is collected on the inner surface of the screen, and that it is held on the inner surface against dropping into the outlet while the cartridge is being withdrawn for inspection and cleaning.
  • foreign matter will tend to collect on ring 25 and on its supporting fla-nge and so seal the joint.
  • Cooling ns 28 are suitably secured 45 to the casing to further encourage the deposition of solid and gummy matter, and the casing l0 may be suitably positioned to be in the path of the air from the cooling ian of the system, or of vthe air passing through the radiator when the 5 automobile is in motion.
  • the modied form of strainer shown in Figure 6 comprises a casing 29 formed of two similar parts which are suitably held together by bolts Se.
  • the casing 29 is provided with a central in- 5t let neck 3i and a central outlet neck 32 in alined relation.
  • a wire screen 33 Interposed between the two parts of the casing 29 is a wire screen 33 against which is laid a cloth screen Sli, facing the inlet side, and both of the screens are suitably clamped between gaskets 35 by the two bolted parts of the casing.
  • the cooling system includes a pump it has been found that oil creeps along the impeller shaft into the water stream and is emulsied as it is churned in the pump.
  • the cloth screen Sli is peculiarly adapted to trap this emulsied ⁇ o il and similar gummy matter.
  • the casing 2Q is connected in the cooling system in a manner similar to that indicated in connection with the strainer shown in Figure 3.
  • Cooling rlns 3% are suitably secured to the casing 29 to encourage the deposition of salts and other foreign matter in the casing. t is well understood that precipitation of salts and other soiid matter from a heated fluid is encouraged by cooling of the liquid and by a drop in the velocity of the liquid.
  • the area of the strainer surface is much larger than that of the inlet neck, and because of the drop in the velocity of the liquid in the strainer chamber, and the cooling of the liquid because of the means provided to cool the relatively large wetted area of the strainer chamber precipitation and adherence of the solids and gums at the screen surface is encouraged.
  • the area of the strainer surface is much larger than that of the inlet neck, and because of the drop in the velocity of the liquid in the strainer chamber, and the cooling of the liquid because of the means provided to cool the relatively large wetted area of the strainer chamber precipitation and adherence of the solids and gums at the screen surface is encouraged.
  • a uid strainer and cooler comprising a casing having an elongated open-ended portion and a connecting neck provided with a partition to dene an inlet and an outlet therefor, a pair of caps providing closure members for the open ends of said elongated portion, an elongated openwork circular frame in said elongated portion and supported at its ends by said caps, a circular screen in said frame, and cooling fins on said casing.
  • a iiuid strainer comprising a casing having an elongated open-ended portion and a connecting neck provided with a partition to define an inlet and an outlet therefor, a pair of caps providing closure members for the open ends of said elongated portion, an elongated open-work circular frame in said elongated portion and supported at its ends by said caps, and a circular screen in said frame.
  • a fluid strainer comprising a casing having an open-ended elongated portion and a connecting neck provided with an apertured partition defining an inlet and an outlet therefor, a pair of caps providing closure members for the ends of elongated portion, an elongated open-work circular frame in said elongated portion, said frame being supported at its ends by said caps and being supported at a point intermediate its ends by said partition, and an elongated circular screen in said frame.
  • a fluid strainer comprising an elongated and open-ended cylinder having an integrally connected neck extending normally therefrom and near one end thereof, partition means in said ends of said cylinder, an elongated open-work frame in said cylinder arranged supported by said closure means, and a screen supported by Vsaid frame. 1, i t,

Description

:inventor Gttorneg 2,011go31'l 'W. T. BIRCH I l u.
i z: k
Aug. 13, 1935.
l STRAINR FOR AUTOMOBILE COOLING SYSTEMS File@ April 25,' 1934 Patented Aug. 13, 1935 UNITED STATES rATsNT orties STRAINER ron AUTOMOBILE cooLING SYSTEMS p Y William T. Birch, Chicago, Ill. y Application April 25, 1934, Serial No. 722,343
4 Claims. (Cl. 21o- 164) This invention relates particularly to strainers for cooling systems of automotive engines, or the like, to remove from the cooling water such foreign matter as is likely to become deposited in the radiator "of an automobile, and conteniplates the removal of emulsified oil, other gummy matter, and the dirt usually carried by the water of the cooling system.
l It is an object of this inventionv to provide a fluid strainer for the cooling systems of the engines of automobiles, o-r` the like, which is at once simple andinexpensive in construction, efficient in operationl and easy to inspect and main- It is also an object of this invention to provide a iiuid strainer of novel construction whereby the advantages already stated may be obtained.
Gther objects of the invention will appear in the description of the invention hereinafter.
d In the drawing:
Figure l is a diagrammatic showing of the strainer inposition in the cooling system of an engine. I .i-
Figure 2 is a sectional View of the strainer,
25 with parts in elevation Figure 3 is a perspective view ofthe strainer of Figure 2. l i
Figure 4 is a perspective view of the removable cartridge of the strainer shown in Figure l, K
` Figure 5 is a developed View of the supporting cage of the cartridgeshown in Figuree.
Figure 6 is a sectional Viewof a rnodiedl form of the strainer.
The strainer shown in Figure 3 comprises a hollow case lil provided with means dening an inlet neck ll and an outlet neck l2 for connection in the cooling system of the internal combustion engine of an automobile by the rubber hose lusually employed in such a system. o A wall i4 provides a partition separating the inlet and outlet conduits of the strainer, and the wall is apertured at l5 to provide a supporting seat for a strainer cartridge i6, and to provide a guiding support for the cartridge as it is being removed for inspection. VSince the fluid pressure on the inlet and outlet faces of the wall lil is substantially equal and opposite, because the wall is exposed to the ngoing and the outgoing fluid, the wall may be made relatively thin.
50 The wall lil bisects an upstanding portion il of the casing which communicates with a horizontally extending and open-ended elongated portion i3 adapted to house the cartridge i6.
The casing l0 may be -a light casting or a 55 stamping, and the elongated portion I8 may be provided with aninwardly extending bent annular lip i9 which is screwethreaded to receive a closure member.
End caps 2t are threaded in the casing to pron vide closure members therefor, and the caps are "5 each provided with'a threaded annular flange il which denes a recess to receive an end oi the cartridge i5 for support by the flange.
The cartridge' i6 comprises a screen 22 housed in and supported. by a sheet-metal cage 23. A 10 blank of sheet metal is cutto the shape shown in Figure 5, the screen 22 is then laid on the open-work form, and the blank is bent to the circular shape shown in Figure 4,' and the screen M is suitably secured to the ribs 2li or to certain or the Eat ring portions 25 and 20 `of the cage,
It will now be evidentV `that the cage 23 comprises the at ring portions A25, 2S and 2l con'- necteol by the ribs 24, and that the ring Z cooperates with the wall lll to denne a partition Separating the inlet and the outlet olf-the casing. The rings 25 and El, with their-connecting ribs denne an inlet port, while the rings 2 and 25 are adapted to lforrn sealing means ccoperable with the flanges 2 l', and provide a support for the 25 cartridge I6 while it is being withdrawn from the casingupon the withdrawing ci either of the end caps. Fluid enters by way of the neck il, passes vthrough the port defined by the rings 2l and 25 and the connecting ribs 24 against the 30 inner surface of the screen 22, and then leaves by the outlet neck i2. It will be obvious that the foreign matter is collected on the inner surface of the screen, and that it is held on the inner surface against dropping into the outlet while the cartridge is being withdrawn for inspection and cleaning. It will also be obvious that, because of the path taken by the fluid, foreign matter will tend to collect on ring 25 and on its supporting fla-nge and so seal the joint. There `is also a tendency for emulsiiied Voil and other light gummy matter to oat towards the right end of the casing where the outlet is relatively long and large and the stream flow relatively slow. Cooling ns 28 are suitably secured 45 to the casing to further encourage the deposition of solid and gummy matter, and the casing l0 may be suitably positioned to be in the path of the air from the cooling ian of the system, or of vthe air passing through the radiator when the 5 automobile is in motion.
The modied form of strainer shown in Figure 6 comprises a casing 29 formed of two similar parts which are suitably held together by bolts Se. The casing 29 is provided with a central in- 5t let neck 3i and a central outlet neck 32 in alined relation.
Interposed between the two parts of the casing 29 is a wire screen 33 against which is laid a cloth screen Sli, facing the inlet side, and both of the screens are suitably clamped between gaskets 35 by the two bolted parts of the casing. When the cooling system includes a pump it has been found that oil creeps along the impeller shaft into the water stream and is emulsied as it is churned in the pump. The cloth screen Sli is peculiarly adapted to trap this emulsied `o il and similar gummy matter.
Because of space limitations on automobiles the space between the opposite inner surface of the casing is so small that should the screens 33 and 3ft stretch they will be pushed against the inner end of the outlet neck 3?; and then the fluid path is substantially that of the bore of the outlet neck instead of the normal path of the whole area of the screen. When the screens are. loaded with foreign matter the difference in pressure between the inlet and outlet faces of the screen tends to cause bowing of the screen towards the outlet neck. To prevent the aforeu mentioned diinunition of the discharge area of the screens by the bowing of the screens, and to provide further straining means, there is entered in the outlet neck a tube 35 havin:lr a plurality of side apertures 35, and prov.Z edfwfth strucif.'n out tangs Si which engage the wall of casing and hold the tube in engaged supporting relation with the screens.
The casing 2Q is connected in the cooling system in a manner similar to that indicated in connection with the strainer shown in Figure 3.
Cooling rlns 3% are suitably secured to the casing 29 to encourage the deposition of salts and other foreign matter in the casing. t is well understood that precipitation of salts and other soiid matter from a heated fluid is encouraged by cooling of the liquid and by a drop in the velocity of the liquid.
In the strainers of Figures 2 and 6 the area of the strainer surface is much larger than that of the inlet neck, and because of the drop in the velocity of the liquid in the strainer chamber, and the cooling of the liquid because of the means provided to cool the relatively large wetted area of the strainer chamber precipitation and adherence of the solids and gums at the screen surface is encouraged. Thus only clean water passes to the main radiator of the system, and
there are no solids to become deposited in the tortuous and cooled passages of the main radiator.
It will, of course, be understood that 'various details of construction may be varied through a wide range without departing from the principles of this invention, and it is therefore not the purpose to limit the patent granted hereon otherwise than is necessitated by the scope cf the appended claims:
What is claimed is:
l. A uid strainer and cooler comprising a casing having an elongated open-ended portion and a connecting neck provided with a partition to dene an inlet and an outlet therefor, a pair of caps providing closure members for the open ends of said elongated portion, an elongated openwork circular frame in said elongated portion and supported at its ends by said caps, a circular screen in said frame, and cooling fins on said casing.
2. A iiuid strainer comprising a casing having an elongated open-ended portion and a connecting neck provided with a partition to define an inlet and an outlet therefor, a pair of caps providing closure members for the open ends of said elongated portion, an elongated open-work circular frame in said elongated portion and supported at its ends by said caps, and a circular screen in said frame.
3. A fluid strainer comprising a casing having an open-ended elongated portion and a connecting neck provided with an apertured partition defining an inlet and an outlet therefor, a pair of caps providing closure members for the ends of elongated portion, an elongated open-work circular frame in said elongated portion, said frame being supported at its ends by said caps and being supported at a point intermediate its ends by said partition, and an elongated circular screen in said frame.
Ll. A fluid strainer comprising an elongated and open-ended cylinder having an integrally connected neck extending normally therefrom and near one end thereof, partition means in said ends of said cylinder, an elongated open-work frame in said cylinder arranged supported by said closure means, and a screen supported by Vsaid frame. 1, i t,
WILLIAM T. BIRCH.
US722349A 1934-04-25 1934-04-25 Strainer for automobile cooling systems Expired - Lifetime US2011031A (en)

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488806A (en) * 1948-06-21 1949-11-22 Clarence E Crowder Radiator filter
US2607725A (en) * 1948-06-10 1952-08-19 Butler Engineering Co Inc Electrolytic water correction device and filter combination
US2633245A (en) * 1948-01-14 1953-03-31 Allis Chalmers Mfg Co Fuel tank and filter assembly
US2727634A (en) * 1952-12-15 1955-12-20 W M Sprinkman Corp Filter
US2808937A (en) * 1954-11-26 1957-10-08 W M Sprinkman Corp Filter
US3362536A (en) * 1964-06-10 1968-01-09 Donald L. Sellman Removable element type filter traps
US3941697A (en) * 1974-12-30 1976-03-02 Johnson Louis B Automotive cooling system filter assembly
US4157964A (en) * 1978-01-10 1979-06-12 Dover Corporation Duplex seal for a bag-type filter system
US4622136A (en) * 1985-08-23 1986-11-11 Watson Karcey International Reusable liquid filter assembly
US4853125A (en) * 1986-06-30 1989-08-01 Toyoda Gosei Co., Ltd. Fluid chamber having a tubular filter and a securing recess for mounting the same
US4949682A (en) * 1989-06-30 1990-08-21 Klein Michael E Particulate and dirt collecting indicator, deflector and collector for an auto coolant system
US6068762A (en) * 1995-09-29 2000-05-30 Parker-Hannifin Corporation Reusable oil filter assembly
US20060174664A1 (en) * 2005-02-08 2006-08-10 Electrolux Home Products Corporation N.V. Clothes washing machine with improved filter assembly
US20080083669A1 (en) * 2003-11-06 2008-04-10 Anderson Jason H Filter system for an automobile engine
US9194860B2 (en) 2012-11-13 2015-11-24 International Business Machines Corporation Integrated nanopore and paul trap mechanism for DNA capture and motion control
US10293910B1 (en) * 2017-05-12 2019-05-21 Brunswick Corporation Cooling systems and strainers for cooling systems for marine engines

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633245A (en) * 1948-01-14 1953-03-31 Allis Chalmers Mfg Co Fuel tank and filter assembly
US2607725A (en) * 1948-06-10 1952-08-19 Butler Engineering Co Inc Electrolytic water correction device and filter combination
US2488806A (en) * 1948-06-21 1949-11-22 Clarence E Crowder Radiator filter
US2727634A (en) * 1952-12-15 1955-12-20 W M Sprinkman Corp Filter
US2808937A (en) * 1954-11-26 1957-10-08 W M Sprinkman Corp Filter
US3362536A (en) * 1964-06-10 1968-01-09 Donald L. Sellman Removable element type filter traps
US3941697A (en) * 1974-12-30 1976-03-02 Johnson Louis B Automotive cooling system filter assembly
US4157964A (en) * 1978-01-10 1979-06-12 Dover Corporation Duplex seal for a bag-type filter system
US4622136A (en) * 1985-08-23 1986-11-11 Watson Karcey International Reusable liquid filter assembly
US4853125A (en) * 1986-06-30 1989-08-01 Toyoda Gosei Co., Ltd. Fluid chamber having a tubular filter and a securing recess for mounting the same
US4949682A (en) * 1989-06-30 1990-08-21 Klein Michael E Particulate and dirt collecting indicator, deflector and collector for an auto coolant system
US6068762A (en) * 1995-09-29 2000-05-30 Parker-Hannifin Corporation Reusable oil filter assembly
US20080083669A1 (en) * 2003-11-06 2008-04-10 Anderson Jason H Filter system for an automobile engine
US20090032452A9 (en) * 2003-11-06 2009-02-05 Anderson Jason H Filter system for an automobile engine
US7618533B2 (en) * 2003-11-06 2009-11-17 Anderson Jason H Filter system for an automobile engine
US20060174664A1 (en) * 2005-02-08 2006-08-10 Electrolux Home Products Corporation N.V. Clothes washing machine with improved filter assembly
US7418842B2 (en) * 2005-02-08 2008-09-02 Electrolux Home Products Corporation N.V. Clothes washing machine with improved filter assembly
US9194860B2 (en) 2012-11-13 2015-11-24 International Business Machines Corporation Integrated nanopore and paul trap mechanism for DNA capture and motion control
US10293910B1 (en) * 2017-05-12 2019-05-21 Brunswick Corporation Cooling systems and strainers for cooling systems for marine engines

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