US3730260A - Heat exchanger apparatus for hydraulic system - Google Patents

Heat exchanger apparatus for hydraulic system Download PDF

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Publication number
US3730260A
US3730260A US00125527A US3730260DA US3730260A US 3730260 A US3730260 A US 3730260A US 00125527 A US00125527 A US 00125527A US 3730260D A US3730260D A US 3730260DA US 3730260 A US3730260 A US 3730260A
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Prior art keywords
heat exchanger
mounting bore
valve
probe
reservoir
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US00125527A
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R Raymond
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YORK FLUID POWER Inc
International Basic Economy Corp
INTERN BASIC ECONOMY CORP
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International Basic Economy Corp
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Assigned to YORK FLUID POWER, INC. reassignment YORK FLUID POWER, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MILL AND MINE SERVICES, INC.
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
    • F28D7/1638—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing with particular pattern of flow or the heat exchange medium flowing inside the conduits assemblies, e.g. change of flow direction from one conduit assembly to another one
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/26—Supply reservoir or sump assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/042—Controlling the temperature of the fluid
    • F15B21/0423—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0077—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for tempering, e.g. with cooling or heating circuits for temperature control of elements

Definitions

  • No.: 125,527 exchanger apparatus isfurther characterized by an inv tegral water flow control valve and temperature probe [52] Us CL 165/27 165/39 65/74 which are uniquely mounted within the module so as 51 1m.'c
  • the novel heat exchanger apparatus of the present invention comprises an adapter housing means arranged to adapt an assembly to be mounted directly on the wall of a fluid reservoir for a hydraulic system, and a heat exchanger housing means which is mounted on said adapter housing means and extended through an opening in the wall of the reservoir and into the bath of fluid therein.
  • the novel heat exchanger apparatus if further characterized by a water flow control valve and a temperature probe both of which are mounted within the above mentioned adapter housing means so as to provide a unique modular cooling unit with all of the element thereof packaged into a single module.
  • all con nections between the heat exchanger and the hydraulic system are provided within the reservoir.
  • a relief valve may be readily incorporated in a modular valve assembly and the connection between the heat exchanger and the system is made inside the reservoir.
  • the novel heat exchanger apparatus is adapted to utilize a novel adapter housing, which housing is sandwiched between the main housing portion and the removable cap of conventional heat exchangers known to the art so as to adapt such standard heat exchangers for subplate mounting on a conventional reservoir with the heat exchanger path assembly being extended into the bath of the reservoir.
  • a novel adapter housing which housing is sandwiched between the main housing portion and the removable cap of conventional heat exchangers known to the art so as to adapt such standard heat exchangers for subplate mounting on a conventional reservoir with the heat exchanger path assembly being extended into the bath of the reservoir.
  • This provides an apparatus wherein the warmer and colder heat exchange paths, as well as the control elements for the flow therethrough, are combined in a removable modular cooling unit.
  • FIG. 1 is a side elevational view of a reservoir for a hydraulic system with a heat exchanger apparatus constructed in accordance with the present invention mounted thereon;
  • FIG. 2 is a top sectional view of an adapter housing means comprising a portion of the heat exchanger apparatus of FIG. 1, the section being taken along the horizontal plane line 2-2 through said adapter housing means;
  • FIG. 3 is an enlarged side elevational view, partially in section, of a heat exchanger apparatus of the present invention, the section being taken along a vertical plane line 3-3 through the apparatus;
  • FIG. 4 is a perspective view showing the adapter housing means of FIGS. 2 and 3 in isolated relationship;
  • FIGS. 5 a nd 6 are top and side elevational views of a i it base plate comprising a portion of the heat exchanger apparatus of the present invention.
  • a heat exchanger apparatus constructed in accordance with the present invention is indicated generally at 40 and is shown mounted on the top wall of a reservoir, indicated generally at 20, which also includes side walls 22 and 24 and a bottom wall 26.
  • a modular hydraulic system, indicated generally at 32, is also mounted on the reservoir top wall.
  • pressurized inlet conduit 30 and inlet port 28 are connected with the outlet of a hydraulic pump for the system, not illustrated, with conduit 30 leading to a modular hydraulic control valve assembly which may be in the form of a modular system shown and described in detail in my co-pending application, Ser. No. 852,231 filed Aug. 22, 1969.
  • fluid from the system is supplied from reservoir 20 to the suction side of the hydraulic pump from a reservoir outlet port and outlet conduit, not illustrated.
  • the heat exchanger apparatus 40 comprises a main heat exchanger housing portion 76 and a cap portion 42 between which housing portions is sandwiched an adapter housing means 50, the construction of which is shown in detail in FIGS. 2 and 3.
  • Adapter housing means 50 comprises a control valve bore 122 in which is mounted a normally closed spool 102 which controls the inlet flow of water from an inlet port 116 connected with a source of pressurized water or other coolant.
  • Spool 102 is normally biased to the left, as seen in FIG. 2, by a compression spring 108 mounted in a spring retainer cap 110 and the spool is shifted to the left via the application of control fluid pressure in a control chamber wherein the control fluid acts on a sealed diaphragm 112 which shifts spool rod 114 to the right upon an increase of fluid pressure and compression spring 108 returns the spool to the left upon a decrease in fluid pressure in chamber 190.
  • spool 102 is mounted in a spool housing 54 which is secured to the main adapter housing portion by the studs 182. Also, it is seen in FIG. 2 that the lands of spool 102 are provided with O-ring seals 104 and 106.
  • adapter housing means 50 further includes a probe bore 58 which receives a flow of system oil via inlet and outlet ports 198 and 196 and a temperature sensing probe 66 is mounted in the bore at the threaded fittings 62 with the interior of the probe being filled with a control fluid that expands and contracts with the change of temperature of the oil flowing through probe bore 58.
  • control chamber 190 for spool 102 is connected to the interior of probe 66 by a control fluid line diagrammatically illustrated at 70.
  • the flow of water to the colder heat exchanger paths 80 and 82 enters adapter housing means 50 at inlet port 116 and then passes through open spool 102, horizontal passage 96, vertical passages 72, opening 88 in a base plate 84 and thence downwardly through the colder paths formed by water tubes 80.
  • the water then changes direction at the base cap of housing 76 and flows upwardly via water tubes 82, opening 86 in base plate 84, the common passages 74 in the adapter housing means, and then outwardly through water outlet port 172 in cap 42.
  • the flow of oil from the pump which enters the modular control system 32 is delivered therefrom via a conduit 34, within reservoir 22 and thence to oil inlet port 198 through the probe bore 58 in contact with the probe, outwardly from outlet port 196 and then through conduit 156 to an inlet 193 for the warmer paths 195 in the heat exchanger main housing portion 76.
  • the oil then passes in heat exchange relationship with the colder paths formed by the water tubes 82 thence outwardly through exchanger oil outlet port 198 and into the bath within the reservoir.
  • the heat exchanger apparatus of the present invention is mounted on a reservoir 22 by inserting the main housing portion 76 through an opening 36 with an interface 152 on the bottom of adapter housing means 50 overlaying a mounting shoulder 154 surrounding hole 36.
  • THe adapter housing means 50 is then secured in place by threaded studs which are inserted into holes 176, FIG. 4, and tightened into threaded engagement with holes in the top wall of reservoir 22.
  • oil is continuously admitted through the probe bore 58 and warmer paths 195 during operation of the control system 32 and associated pump and motor.
  • probe 66 When probe 66 senses a predetermined temperature value, at which cooling of the oil is required, the control fluid within probe 66 and control chamber 190 expands thereby shifting water control valve 102 to the right whereby it admits water to and through the cooling paths 80 in the manner previously described.
  • a heat exchanger for the reservoir of a hydraulic system comprising, in combination, adapter housing means including a wall forming an interface, a valve mounting bore, a probe mounting bore, a colder fluid passage means communicating with said valve mounting bore and a warmer fluid passage means communicating with said probe mounting bore; heat exchanger housing means including an interface mounted on said interface of said adapter housing means, a first heat exchanger passage in said heat exchanger housing means and forming a warmer path communicating with said warmer fluid passage means, and a second heat exchanger passage in said heat exchanger housing means and forming a colder path communicating with said colder fluid passage means; valve means mounted in said valve mounting bore for controlling the flow of colder fluid through said colder fluid passage means; a temperature sensing probe mounted in said probe mounting bore; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.
  • a heat exchanger for the reservoir of a hydraulic system comprising, in combination, reservoir means including a reservoir wall provided with an opening and a peripheral mounting surface; adapter housing means mounted on said mounting surface and including a wall forming an interface, a valve mounting bore, a probe mounting bore, a colder fluid passage means communicating with said valve mounting bore and a warmer fluid passage means communicating with said probe mounting bore; heat exchanger housing means including an interface mounted on said interface of said adapter housing means, and an inner housing portion extended through said reservoir wall opening and into a bath of warmer fluid in said reservoir, a first heat exchanger passage in said heat exchanger housing means and forming a warmer path communicating with said warmer fluid passage means, and a second heat exchanger passage in said heat exchanger housing means and forming a colder path communicating with said colder fluid passage means; valve means mounted in said valve mounting bore for controlling the flow of colder fluid through said colder fluid passage means; a temperature sensing probe mounted in said probe mounting bore; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.
  • a heat exchanger for the reservoir of a hydraulic system comprising, in combination, heat exchanger housing means including a main housing portion provided with a first heat exchanger interface and a cap portion provided with a second heat exchanger interface, said cap portion forming connecting passage means for warmer and colder heat exchanger passages through said main housing portion; adapter housing means sandwiched between said heat exchanger housing portions and including first and second adapter interfaces that engage said heat exchanger interfaces, adapter passage means that connect said connecting passage means of said cap portion with said heat exchanger passages a valve mounting bore communicating with the flow through one of said heat exchanger means and a probe mounting bore communicating with the flow through the other of said heat exchanger passages valve means mounted in said valve mounting bore for controlling the flow there through; a temperature sensing probe mounted in said probe mounting bore; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.
  • a heat exchanger for the reservoir of a hydraulic system comprising, in combination, reservoir means in cluding a reservoir wall provided with an opening and a peripheral mounting surface; heat exchanger housing means including a main housing portion extended through said opening in said reservoir and provided with a first heat exchanger interface and a cap portion provided with a second heat exchanger interface, said cap portion forming connecting passage means for warmer and colder heat exchanger passages through said main housing portion; adapter housing means mounted on said peripheral mounting surface of said reservoir and sandwiched between said heat exchanger housing portions and including first and second adapter interfaces that engage said heat exchanger interfaces, adapter passage means that engage said heat exchanger interfaces, adapter passage means that connect said connecting passage means of said cap portion with said heat exchanger passages a valve mounting bore communicating with the flow through one of said heat exchanger passages and a probe mounting bore communicating with the flow through the other of said heat exchanger passages and valve means mounted in said valve mounting bore for controlling the flow therethrough.
  • a heat exchanger for the reservoir of a hydraulic system comprising, in combination, adapter housing means including a wall forming an interface, a valve mounting bore, a colder fluid passage means communicating with said valve mountingtbore and a warmer fluid passage means; heat exchanger housing means including an interface mounted on said interface of said adapter housing means, a first heat exchanger passage in said heat exchanger housing means and forming a warmer path communicating with said warmer fluid passage means, and a second heat exchanger passage in said heat exchanger housing means and forming a colder path communicating with said colder fluid passage means; valve means mounted in said valve mounting bore for controlling the flow of colder fluid through said colder fluid passage :means; a temperature probe exposed to a flow of fluid in said system; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.
  • a heat exchanger for the reservoir of a hydraulic system comprising, in combination, heat exchanger housing means including a main housing portion provided with a first heat exchanger interface and a cap portion provided with a second lheat exchanger interface, said cap portion forming connecting passage means for warmer and colder heat exchanger passages through said main housing portion; adapter housing means sandwiched between said heat exchanger housing portions and including first and second adapter interfaces that engage said heat exchanger interfaces, adapter passage means that connect said connecting passage means of said cap portion with said heat exchanger passages and a valve mounting bore communicating with the flow through one of said heat exchanger passages valve means mounted in said valve mounting bore for controlling the flow therethrough; a temperature probe exposed to a flow of fluid in said system; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
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Abstract

An improved heat exchanger apparatus adapted to be removably mounted on a reservoir means and extended through an opening in the wall thereof so as to be disposed in the bath of fluid therein. The heat exchanger apparatus is further characterized by an integral water flow control valve and temperature probe which are uniquely mounted within the module so as to provide a unique modular cooling unit with all of the element thereof packaged within a single removable heat exchanger unit.

Description

United States [191 Raymond 1 May 1, 1973 [s41 HEAT EXCHANGER APPARATUS FOR Prim y x m n r-Ch rle suk lo I HYDRAULIC SYSTEM Att0rney--Schmieding & Fultz [75] Inventor: lzliisrt E. Raymond, Zanesville, 1 ABSTRACT [73] Assignee; lntemafionfl Basic Economy Cob An improved heat exchanger apparatus adapted to be porafion, New York, removably mounted on a reservoir means and extended through an opening in the wall thereof so as to [22] F'led: 1971 be disposed in the bath of fluid therein. The heat [21] Appl. No.: 125,527 exchanger apparatus isfurther characterized by an inv tegral water flow control valve and temperature probe [52] Us CL 165/27 165/39 65/74 which are uniquely mounted within the module so as 51 1m.'c|..111111111111111111111111 .mb 29/00 Pmvide a unique *mdular Ming with [58] Field of Search ..165/39, 40, 74 104 the element there Packaged within a single 165/107, 6 ble heat exchanger unit.
[56] References Cited UNITED STATES PATENTS 6 Claims, 6Drawing Figures 7 5G 54 2O 62 =E' !l 5! m n l M C l 60 a u..- :ru- I A. 2, I52 I Patented May 1, 1973 3,730,260 I 3 Sheds-Sheet 1 6 498 -62 2 III.\\\\\\\\\\ i 'ff lio no Ll I INVENTOR 31 ROBERTERAYMOND' I62 jWJuZ 18 104 N6 54 ATTO 5Y3 Patented May 1, 1973 3,730,260
5 Sheets-Sheet 2 NVENTOR.
ROBERT E. A 14 YMOND A T ORA/5Y5 Patented May 1, 1973 7 3,730,260
3 Sheets-Sheet 3 (:9 (:7 INVENTOR.
ROBERT 5 RA mo/va v A ORNEYS I HEAT EXCHANGER APPARATUS FOR HYDRAULIC SYSTEM This invention relates to heat exchangers for the reservoirs of hydraulic systems.
In general, the novel heat exchanger apparatus of the present invention comprises an adapter housing means arranged to adapt an assembly to be mounted directly on the wall of a fluid reservoir for a hydraulic system, and a heat exchanger housing means which is mounted on said adapter housing means and extended through an opening in the wall of the reservoir and into the bath of fluid therein.
The novel heat exchanger apparatus if further characterized by a water flow control valve and a temperature probe both of which are mounted within the above mentioned adapter housing means so as to provide a unique modular cooling unit with all of the element thereof packaged into a single module.
As another aspect of the present invention, since the water control valve, temperature sensing probe, and passages leading from the adapter housing means to the warmer and colder paths are all provided within the module, substantially all external lines and heat exchanger components are eliminated.
As another aspect of the present invention, all con nections between the heat exchanger and the hydraulic system are provided within the reservoir.
As still another aspect of the present invention, when it is necessary to provide the novel heat exchanger apparatus with relief valve action, a relief valve may be readily incorporated in a modular valve assembly and the connection between the heat exchanger and the system is made inside the reservoir.
As still another aspect of the present invention, the novel heat exchanger apparatus is adapted to utilize a novel adapter housing, which housing is sandwiched between the main housing portion and the removable cap of conventional heat exchangers known to the art so as to adapt such standard heat exchangers for subplate mounting on a conventional reservoir with the heat exchanger path assembly being extended into the bath of the reservoir. This results in an inexpensive and compact assembly and also serves to eliminate the need for external piping conventionally used with standard heat exchangers.
It is therefore an object of the present invention to provide a novel heat exchanger apparatus which is adapted to be removably mounted on a reservoir for a hydraulic system such that the heat exchanger is extended into the bath of the reservoir and connection between the exchanger and the hydraulic system are made within the reservoir.
It is another object of the present invention to provide a novel heat exchanger apparatus wherein the water valve and temperature probe are all packaged within a single modular cooling unit at low cost and with minimum space utilization.
It is still another object of the present invention to provide a heat exchanger apparatus wherein a novel adapter housing means is provided with an integral water control valve and temperature sensing means, and adapted to be sandwiched between the main body portion and cap portion of a standard heat exchanger.
This provides an apparatus wherein the warmer and colder heat exchange paths, as well as the control elements for the flow therethrough, are combined in a removable modular cooling unit.
Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawings wherein preferred forms of embodiments of the invention are clearly shown.
In the drawings:
FIG. 1 is a side elevational view of a reservoir for a hydraulic system with a heat exchanger apparatus constructed in accordance with the present invention mounted thereon;
FIG. 2 is a top sectional view of an adapter housing means comprising a portion of the heat exchanger apparatus of FIG. 1, the section being taken along the horizontal plane line 2-2 through said adapter housing means;
FIG. 3 is an enlarged side elevational view, partially in section, of a heat exchanger apparatus of the present invention, the section being taken along a vertical plane line 3-3 through the apparatus;
FIG. 4 is a perspective view showing the adapter housing means of FIGS. 2 and 3 in isolated relationship; and
FIGS. 5 a nd 6 are top and side elevational views of a i it base plate comprising a portion of the heat exchanger apparatus of the present invention.
Referring in detail to the drawings, a heat exchanger apparatus constructed in accordance with the present invention is indicated generally at 40 and is shown mounted on the top wall of a reservoir, indicated generally at 20, which also includes side walls 22 and 24 and a bottom wall 26. A modular hydraulic system, indicated generally at 32, is also mounted on the reservoir top wall.
As seen in FIG. 1, pressurized inlet conduit 30 and inlet port 28 are connected with the outlet of a hydraulic pump for the system, not illustrated, with conduit 30 leading to a modular hydraulic control valve assembly which may be in the form of a modular system shown and described in detail in my co-pending application, Ser. No. 852,231 filed Aug. 22, 1969.
It should be mentioned that fluid from the system is supplied from reservoir 20 to the suction side of the hydraulic pump from a reservoir outlet port and outlet conduit, not illustrated.
Referring particularly to FIGS. 1 3, the heat exchanger apparatus 40 comprises a main heat exchanger housing portion 76 and a cap portion 42 between which housing portions is sandwiched an adapter housing means 50, the construction of which is shown in detail in FIGS. 2 and 3.
Adapter housing means 50 comprises a control valve bore 122 in which is mounted a normally closed spool 102 which controls the inlet flow of water from an inlet port 116 connected with a source of pressurized water or other coolant.
Spool 102 is normally biased to the left, as seen in FIG. 2, by a compression spring 108 mounted in a spring retainer cap 110 and the spool is shifted to the left via the application of control fluid pressure in a control chamber wherein the control fluid acts on a sealed diaphragm 112 which shifts spool rod 114 to the right upon an increase of fluid pressure and compression spring 108 returns the spool to the left upon a decrease in fluid pressure in chamber 190.
It should be mentioned that spool 102 is mounted in a spool housing 54 which is secured to the main adapter housing portion by the studs 182. Also, it is seen in FIG. 2 that the lands of spool 102 are provided with O- ring seals 104 and 106.
With continued reference to FIG. 2, adapter housing means 50 further includes a probe bore 58 which receives a flow of system oil via inlet and outlet ports 198 and 196 and a temperature sensing probe 66 is mounted in the bore at the threaded fittings 62 with the interior of the probe being filled with a control fluid that expands and contracts with the change of temperature of the oil flowing through probe bore 58.
As is further seen in FIG. 2, the control chamber 190 for spool 102 is connected to the interior of probe 66 by a control fluid line diagrammatically illustrated at 70.
With reference to FIGS. 2, 3 and 4, the flow of water to the colder heat exchanger paths 80 and 82 enters adapter housing means 50 at inlet port 116 and then passes through open spool 102, horizontal passage 96, vertical passages 72, opening 88 in a base plate 84 and thence downwardly through the colder paths formed by water tubes 80. The water then changes direction at the base cap of housing 76 and flows upwardly via water tubes 82, opening 86 in base plate 84, the common passages 74 in the adapter housing means, and then outwardly through water outlet port 172 in cap 42.
Referring particularly to FIGS. 1 and 3, the flow of oil from the pump which enters the modular control system 32 is delivered therefrom via a conduit 34, within reservoir 22 and thence to oil inlet port 198 through the probe bore 58 in contact with the probe, outwardly from outlet port 196 and then through conduit 156 to an inlet 193 for the warmer paths 195 in the heat exchanger main housing portion 76. The oil then passes in heat exchange relationship with the colder paths formed by the water tubes 82 thence outwardly through exchanger oil outlet port 198 and into the bath within the reservoir.
In operation, it should be pointed out that the heat exchanger apparatus of the present invention is mounted on a reservoir 22 by inserting the main housing portion 76 through an opening 36 with an interface 152 on the bottom of adapter housing means 50 overlaying a mounting shoulder 154 surrounding hole 36. THe adapter housing means 50 is then secured in place by threaded studs which are inserted into holes 176, FIG. 4, and tightened into threaded engagement with holes in the top wall of reservoir 22.
With continued reference to the operation of the device, oil is continuously admitted through the probe bore 58 and warmer paths 195 during operation of the control system 32 and associated pump and motor.
When probe 66 senses a predetermined temperature value, at which cooling of the oil is required, the control fluid within probe 66 and control chamber 190 expands thereby shifting water control valve 102 to the right whereby it admits water to and through the cooling paths 80 in the manner previously described.
When the flow of oil is sufficiently cooled and the l. A heat exchanger for the reservoir of a hydraulic system comprising, in combination, adapter housing means including a wall forming an interface, a valve mounting bore, a probe mounting bore, a colder fluid passage means communicating with said valve mounting bore and a warmer fluid passage means communicating with said probe mounting bore; heat exchanger housing means including an interface mounted on said interface of said adapter housing means, a first heat exchanger passage in said heat exchanger housing means and forming a warmer path communicating with said warmer fluid passage means, and a second heat exchanger passage in said heat exchanger housing means and forming a colder path communicating with said colder fluid passage means; valve means mounted in said valve mounting bore for controlling the flow of colder fluid through said colder fluid passage means; a temperature sensing probe mounted in said probe mounting bore; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.
2. A heat exchanger for the reservoir of a hydraulic system comprising, in combination, reservoir means including a reservoir wall provided with an opening and a peripheral mounting surface; adapter housing means mounted on said mounting surface and including a wall forming an interface, a valve mounting bore, a probe mounting bore, a colder fluid passage means communicating with said valve mounting bore and a warmer fluid passage means communicating with said probe mounting bore; heat exchanger housing means including an interface mounted on said interface of said adapter housing means, and an inner housing portion extended through said reservoir wall opening and into a bath of warmer fluid in said reservoir, a first heat exchanger passage in said heat exchanger housing means and forming a warmer path communicating with said warmer fluid passage means, and a second heat exchanger passage in said heat exchanger housing means and forming a colder path communicating with said colder fluid passage means; valve means mounted in said valve mounting bore for controlling the flow of colder fluid through said colder fluid passage means; a temperature sensing probe mounted in said probe mounting bore; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.
3. A heat exchanger for the reservoir of a hydraulic system comprising, in combination, heat exchanger housing means including a main housing portion provided with a first heat exchanger interface and a cap portion provided with a second heat exchanger interface, said cap portion forming connecting passage means for warmer and colder heat exchanger passages through said main housing portion; adapter housing means sandwiched between said heat exchanger housing portions and including first and second adapter interfaces that engage said heat exchanger interfaces, adapter passage means that connect said connecting passage means of said cap portion with said heat exchanger passages a valve mounting bore communicating with the flow through one of said heat exchanger means and a probe mounting bore communicating with the flow through the other of said heat exchanger passages valve means mounted in said valve mounting bore for controlling the flow there through; a temperature sensing probe mounted in said probe mounting bore; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.
4. A heat exchanger for the reservoir of a hydraulic system comprising, in combination, reservoir means in cluding a reservoir wall provided with an opening and a peripheral mounting surface; heat exchanger housing means including a main housing portion extended through said opening in said reservoir and provided with a first heat exchanger interface and a cap portion provided with a second heat exchanger interface, said cap portion forming connecting passage means for warmer and colder heat exchanger passages through said main housing portion; adapter housing means mounted on said peripheral mounting surface of said reservoir and sandwiched between said heat exchanger housing portions and including first and second adapter interfaces that engage said heat exchanger interfaces, adapter passage means that engage said heat exchanger interfaces, adapter passage means that connect said connecting passage means of said cap portion with said heat exchanger passages a valve mounting bore communicating with the flow through one of said heat exchanger passages and a probe mounting bore communicating with the flow through the other of said heat exchanger passages and valve means mounted in said valve mounting bore for controlling the flow therethrough.
5. A heat exchanger for the reservoir of a hydraulic system comprising, in combination, adapter housing means including a wall forming an interface, a valve mounting bore, a colder fluid passage means communicating with said valve mountingtbore and a warmer fluid passage means; heat exchanger housing means including an interface mounted on said interface of said adapter housing means, a first heat exchanger passage in said heat exchanger housing means and forming a warmer path communicating with said warmer fluid passage means, and a second heat exchanger passage in said heat exchanger housing means and forming a colder path communicating with said colder fluid passage means; valve means mounted in said valve mounting bore for controlling the flow of colder fluid through said colder fluid passage :means; a temperature probe exposed to a flow of fluid in said system; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.
6. A heat exchanger for the reservoir of a hydraulic system comprising, in combination, heat exchanger housing means including a main housing portion provided with a first heat exchanger interface and a cap portion provided with a second lheat exchanger interface, said cap portion forming connecting passage means for warmer and colder heat exchanger passages through said main housing portion; adapter housing means sandwiched between said heat exchanger housing portions and including first and second adapter interfaces that engage said heat exchanger interfaces, adapter passage means that connect said connecting passage means of said cap portion with said heat exchanger passages and a valve mounting bore communicating with the flow through one of said heat exchanger passages valve means mounted in said valve mounting bore for controlling the flow therethrough; a temperature probe exposed to a flow of fluid in said system; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.

Claims (6)

1. A heat exchanger for the reservoir of a hydraulic system comprising, in combination, adapter housing means including a wall forming an interface, a valve mounting bore, a probe mounting bore, a colder fluid passage means communicating with said valve mounting bore and a warmer fluid passage means communicating with said probe mounting bore; heat exchanger housing means including an interface mounted on said interface of said adapter housing means, a first heat exchanger passage in said heat exchanger housing means and forming a warmer path communicating with said warmer fluid passage means, and a second heat exchanger passage in said heat exchanger housing means and forming a colder path communicating with said colder fluid passage means; valve means mounted in said valve mounting bore for controlling the flow of colder fluid through said colder fluid passage means; a temperature sensing probe mounted in said probe mounting bore; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.
2. A heat exchanger for the reservoir of a hydraulic system comprising, in combination, reservoir means including a reservoir wall provided with an opening and a peripheral mounting surface; adapter housing means mounted on said mounting surface and including a wall forming an interface, a valve mounting bore, a probe mounting bore, a colder fluid passage means Communicating with said valve mounting bore and a warmer fluid passage means communicating with said probe mounting bore; heat exchanger housing means including an interface mounted on said interface of said adapter housing means, and an inner housing portion extended through said reservoir wall opening and into a bath of warmer fluid in said reservoir, a first heat exchanger passage in said heat exchanger housing means and forming a warmer path communicating with said warmer fluid passage means, and a second heat exchanger passage in said heat exchanger housing means and forming a colder path communicating with said colder fluid passage means; valve means mounted in said valve mounting bore for controlling the flow of colder fluid through said colder fluid passage means; a temperature sensing probe mounted in said probe mounting bore; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.
3. A heat exchanger for the reservoir of a hydraulic system comprising, in combination, heat exchanger housing means including a main housing portion provided with a first heat exchanger interface and a cap portion provided with a second heat exchanger interface, said cap portion forming connecting passage means for warmer and colder heat exchanger passages through said main housing portion; adapter housing means sandwiched between said heat exchanger housing portions and including first and second adapter interfaces that engage said heat exchanger interfaces, adapter passage means that connect said connecting passage means of said cap portion with said heat exchanger passages , a valve mounting bore communicating with the flow through one of said heat exchanger means , and a probe mounting bore communicating with the flow through the other of said heat exchanger passages ; valve means mounted in said valve mounting bore for controlling the flow there through; a temperature sensing probe mounted in said probe mounting bore; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.
4. A heat exchanger for the reservoir of a hydraulic system comprising, in combination, reservoir means including a reservoir wall provided with an opening and a peripheral mounting surface; heat exchanger housing means including a main housing portion extended through said opening in said reservoir and provided with a first heat exchanger interface and a cap portion provided with a second heat exchanger interface, said cap portion forming connecting passage means for warmer and colder heat exchanger passages through said main housing portion; adapter housing means mounted on said peripheral mounting surface of said reservoir and sandwiched between said heat exchanger housing portions and including first and second adapter interfaces that engage said heat exchanger interfaces, adapter passage means that engage said heat exchanger interfaces, adapter passage means that connect said connecting passage means of said cap portion with said heat exchanger passages , a valve mounting bore communicating with the flow through one of said heat exchanger passages , and a probe mounting bore communicating with the flow through the other of said heat exchanger passages ; and valve means mounted in said valve mounting bore for controlling the flow therethrough.
5. A heat exchanger for the reservoir of a hydraulic system comprising, in combination, adapter housing means including a wall forming an interface, a valve mounting bore, a colder fluid passage means communicating with said valve mounting bore and a warmer fluid passage means; heat exchanger housing means including an interface mounted on said interface of said adapter housing means, a first heat exchanger passage in said heat exchanger housing means and forming a warmer path communicating with said warmer fluid passage means, and a second heat exchanger passage in said heat exchanger housing means and forming a colder path communicating with said colder fluid paSsage means; valve means mounted in said valve mounting bore for controlling the flow of colder fluid through said colder fluid passage means; a temperature probe exposed to a flow of fluid in said system; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.
6. A heat exchanger for the reservoir of a hydraulic system comprising, in combination, heat exchanger housing means including a main housing portion provided with a first heat exchanger interface and a cap portion provided with a second heat exchanger interface, said cap portion forming connecting passage means for warmer and colder heat exchanger passages through said main housing portion; adapter housing means sandwiched between said heat exchanger housing portions and including first and second adapter interfaces that engage said heat exchanger interfaces, adapter passage means that connect said connecting passage means of said cap portion with said heat exchanger passages , and a valve mounting bore communicating with the flow through one of said heat exchanger passages ; valve means mounted in said valve mounting bore for controlling the flow therethrough; a temperature probe exposed to a flow of fluid in said system; and means for shifting said valve means responsive to variations in the temperature sensed by said probe.
US00125527A 1971-03-18 1971-03-18 Heat exchanger apparatus for hydraulic system Expired - Lifetime US3730260A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5281651U (en) * 1975-12-13 1977-06-17
US4338891A (en) * 1980-01-28 1982-07-13 Blitz James E Temperature control system for automotive storage components
EP0111673A2 (en) * 1982-12-11 1984-06-27 Taisei Kogyo Co., Ltd. Control apparatus for heat exchanger
WO1989007791A1 (en) * 1988-02-16 1989-08-24 Arctic Fox Heaters, Inc. Device for bypassing heat exchange flow conduits
US4964376A (en) * 1989-10-03 1990-10-23 Arctic Fox Heaters Device for bypassing heat exchange conduits
US5810110A (en) * 1996-11-08 1998-09-22 R. H. Sheppard Co., Inc. Tandem power steering system with heat sink
US6003595A (en) * 1997-02-07 1999-12-21 Smc Corporation Constant-temperature liquid-circulating apparatus
US6044903A (en) * 1998-02-20 2000-04-04 Frigid Units, Inc. Water conditioning assembly
WO2005124162A1 (en) * 2004-06-17 2005-12-29 Hydac Filtertechnik Gmbh Modular unit
US20110253343A1 (en) * 2004-04-23 2011-10-20 Aarhus Karlshamn Denmark A/S Method, apparatus, system and heat exchanger for increasing the temperature of a substance which is initially in an at least partly solidified state in a container

Citations (1)

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Publication number Priority date Publication date Assignee Title
US2879749A (en) * 1957-04-24 1959-03-31 Patterson Kelley Co Hot water system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2879749A (en) * 1957-04-24 1959-03-31 Patterson Kelley Co Hot water system

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5281651U (en) * 1975-12-13 1977-06-17
JPS56155Y2 (en) * 1975-12-13 1981-01-06
US4338891A (en) * 1980-01-28 1982-07-13 Blitz James E Temperature control system for automotive storage components
EP0111673A2 (en) * 1982-12-11 1984-06-27 Taisei Kogyo Co., Ltd. Control apparatus for heat exchanger
EP0111673A3 (en) * 1982-12-11 1985-05-15 Taisei Kogyo Co., Ltd. Control apparatus for heat exchanger
US4595046A (en) * 1982-12-11 1986-06-17 Taisei Kogyo Co., Ltd. Control apparatus for heat exchanger
WO1989007791A1 (en) * 1988-02-16 1989-08-24 Arctic Fox Heaters, Inc. Device for bypassing heat exchange flow conduits
US4964376A (en) * 1989-10-03 1990-10-23 Arctic Fox Heaters Device for bypassing heat exchange conduits
US5810110A (en) * 1996-11-08 1998-09-22 R. H. Sheppard Co., Inc. Tandem power steering system with heat sink
US6003595A (en) * 1997-02-07 1999-12-21 Smc Corporation Constant-temperature liquid-circulating apparatus
US6044903A (en) * 1998-02-20 2000-04-04 Frigid Units, Inc. Water conditioning assembly
US20110253343A1 (en) * 2004-04-23 2011-10-20 Aarhus Karlshamn Denmark A/S Method, apparatus, system and heat exchanger for increasing the temperature of a substance which is initially in an at least partly solidified state in a container
US8734005B2 (en) * 2004-04-23 2014-05-27 Aarbuskarlshamn Denmark A/S Method, apparatus, system and heat exchanger for increasing the temperature of a substance which is initially in an at least partly solidified state in a container
WO2005124162A1 (en) * 2004-06-17 2005-12-29 Hydac Filtertechnik Gmbh Modular unit
US20070261737A1 (en) * 2004-06-17 2007-11-15 Hydac Filtertechnik Gmbh Modular Unit
JP2008502851A (en) * 2004-06-17 2008-01-31 ハイダック フィルターテヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング Modular unit
CN100510430C (en) * 2004-06-17 2009-07-08 Hydac过滤技术有限公司 Integrated modular unit
US7926515B2 (en) 2004-06-17 2011-04-19 Hydac Filtertechnik Gmbh Modular unit
JP4723572B2 (en) * 2004-06-17 2011-07-13 ハイダック フィルターテヒニク ゲゼルシャフト ミット ベシュレンクテル ハフツング Modular unit

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Effective date: 19820707

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Effective date: 19840917