US3858801A - Thermally responsive valve apparatus - Google Patents

Thermally responsive valve apparatus Download PDF

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Publication number
US3858801A
US3858801A US352195A US35219573A US3858801A US 3858801 A US3858801 A US 3858801A US 352195 A US352195 A US 352195A US 35219573 A US35219573 A US 35219573A US 3858801 A US3858801 A US 3858801A
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United States
Prior art keywords
cylindrical portion
annular
base member
cylindrical
flange portion
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US352195A
Inventor
Wong Backman
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STC HOLDING Co A CORP OF
Standard Thomson Corp
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Standard Thomson Corp
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Priority to US352195A priority Critical patent/US3858801A/en
Priority to US358590A priority patent/US3858800A/en
Priority to DE2417897A priority patent/DE2417897C2/en
Priority to GB1685074A priority patent/GB1443266A/en
Priority to JP49043241A priority patent/JPS5926831B2/en
Priority to CA197,707A priority patent/CA1012516A/en
Priority to IT68236/74A priority patent/IT1009480B/en
Priority to FR7413335A priority patent/FR2226601B1/fr
Priority to BE143372A priority patent/BE813910A/en
Application granted granted Critical
Publication of US3858801A publication Critical patent/US3858801A/en
Assigned to PITTSBURGH NATIONAL BANK, A NATIONAL BANKING ASSOCIATION reassignment PITTSBURGH NATIONAL BANK, A NATIONAL BANKING ASSOCIATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JPA SUB, INC., STA SUB INC.
Assigned to STANDARD-THOMSON CORPORATION reassignment STANDARD-THOMSON CORPORATION MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE JUNE 19, 1986, DELAWARE Assignors: STANDARD-THOMSON CORPORATION (INTO) STA SUB, INC. (CHANGED TO)
Assigned to JOSEPH POLLAK CORPORATION, STANDARD-THOMSON CORPORATION reassignment JOSEPH POLLAK CORPORATION RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: PITTSBURGH NATIONAL BANK
Assigned to STC HOLDING CO., A CORP. OF DE reassignment STC HOLDING CO., A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: STANDARD-THOMSON CORPORATION
Assigned to STANDARD-THOMSON CORP. reassignment STANDARD-THOMSON CORP. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE: 10/18/88 Assignors: STC HOLDING CO., A DE CORP
Assigned to CHEMICAL BANK reassignment CHEMICAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EPICOR INDUSTRIES, INC., STANDARD-THOMPSON CORPORATION, STANT CORPORATION A CORP. OF DELAWARE, STANT MANUFACTURING, INC.
Assigned to STANDARD-THOMSON CORPORATION reassignment STANDARD-THOMSON CORPORATION RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BESSEMER SECURITIES CORPORATION
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
    • F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control

Definitions

  • ABSTRACT [52] US. Cl. 236/34 High flow capacity thermally responsive valve appara- [51] Int. Cl. F01p 7/16 tus particularly adapted for use in the cooling system [58] Field of Search 236/34, 34.5, 100, 29/454 of an internal combustion engine.
  • the valve apparatus has basically three major integral elements which are [56] References Cited joined together to provide a relatively low cost struc- UNITED STATES PATENTS wrally Strong device- 2,881,616 4/1959 Clifford etal 236/34 X 3 Claims, 2 Drawing Figures TI-IERMALLY RESPONSIVE VALVE APPARATUS BACKGROUND OF THE INVENTION
  • Numerous thermally responsive valve devices have been created which are specifically for use in the cooling system of an internal combustion engine. However, most of such devices are relatively costly to produce, and those which are not costly are frequently shortlived or are subject to defective operation.
  • Another object of this invention is to provide such apparatus which is structurally strong but which is constructed of relatively thin material.
  • FIG. 1 is an exploded perspective view of thermally responsive valve apparatus of this invention.
  • FIG. 2 is a side sectional view of the apparatus of FIG. 1.
  • Thermally responsive valve apparatus of this invention comprises primarily three major elements: a bridge element 10, a guide element 12, and a closure element 14.
  • the bridge element has an annular vertical portion and an annular horizontal portion 22.
  • An annular valve seat portion 23, at the lower part of the vertical portion 20, is joined to a plurality of arm portions 24 which extend angularly upwardly from the valve seat portion 23 and terminate in an annular or apertured abutment portion 26.
  • the portions 20, 22, 23, 24, and 26 of the bridge element 10 are integral and may be formed from a thin piece of material, such as metallic sheet material or the like, by a progressive stamping operation or the like.
  • the guide element 12 has an annular horizontal portion 30, an annular vertical portion 32, and a plurality of leg portions 34 which extend downwardly from the vertical portion 32 and terminate in an annular or apertured guide portion 36.
  • the portions 30, 32, 34, and 36 of the guide element 12 are integral and may be formed from a thin piece of material, such as metallic sheet material or the like, by a progressive stamping operation or the like.
  • the closure element 14 has a closure portion 40 which has a'centrally located, downwardly inclined, recess 37 within which is retained a thermally responsive actuator member 42 having an actuator stem 44.
  • the thermally responsive actuator member 42 may be of any suitable type and may be, for example, of the type which is shown in US. Pat. Nos. 2,806,375 and 2,806,376.
  • the lower part of the actuator member 42 is positioned within the guide portion 36 of the guide element 12.
  • the actuator stem 44 is preferably threaded and has a nut 46 threadedly attached thereto.
  • a helical resilient member or spring 50 encompasses the actuator member 42 and the guide portion 36 and engages the leg portions 34 and the closure portion 40 and urges the closure portion 40 toward the valve seat portion 23 of the bridge element 10.
  • the nut 46 engages the abutment portion 26 and determines the position of the actuator stem 44 with respect to the actuator member 42.
  • a part of the nut 46 may extend through the annular abutment portion 26 and is preferably attached thereto.
  • the actuator stem 44 may be threadedly adjusted with respect to the nut 46 and thus is adjusted in its position with respect to the actuator member 42.
  • the annular horizontal portion 22 of the bridge element 10 and the annular horizontal portion 30 of the guide element 12 are in engagement one with the other.
  • the vertical portion 20 of the bridge element 10 is shown in engagement with the vertical portion 32 of the guide element 12.
  • the annular horizontal portions 22 and 30 and/or the annular vertical portions 20 and 32 are attached together by any suitable means, such as by soldering, welding, brazing, and the like.
  • the annular portions 20, 22, 30 and 32 thus form a structurally strong flange section which is adapted to be clamped between two members of a fluid conduit, not shown.
  • the actuator member 42 is positioned on the upstream side thereof so that the actuator member 42 is engaged by fluid prior to movement of the fluid through the valve apparatus.
  • the closure portion 40 when positioned as shown in FIG. 2, in engagement with the valve seat portion 23, prevents flow of fluid through the fluid conduit.
  • the thermally responsive valve apparatus of this invention may be sturdily constructed of materials having relatively thin dimensions. Because the thermally responsive valve apparatus of this invention is constructed of integral elements, the valve apparatus of this invention can be produced on a large volume basis at relatively low costs.
  • Thermally responsive valve apparatus comprising a one-piece sheet metal base member including a first cylindrical portion integrally connected to a first annular flange portion projecting radially outwardly from said first cylindrical portion, said base member further including an integral bracket portion projecting downwardly from said cylindrical portion and defining a lower guide opening aligned axially with said first cylindrical portion, a one-piece sheet metal bridge member including a second cylindrical portion integrally connecting an inwardly disposed annular seat portion to a second annular flange portion projecting radially outwardly from said second cylindrical portion, said second cylindrical portion of said bridge member having an outer diameter substantially the same as the inner diameter of said first cylindrical portion of said base member and in interfitting relation with said first cylindrical portion surrounding said second cylindrical por' tion, said second annular flange portion of said bridge member disposed in overlying adjacent relation on said first annular flange portion of said base member, a closure member disposed within said base member and having a frusto-conical. portion, said closure member further including an outer peripheral
  • closure member includes a generally cylindrical inner portion integrally connected to said frusto-conical portion by an annular portion which cooperates with said inner portion and said frusto-conical portion to define an annular cavity facing said bracket portion of said base member.
  • Apparatus as defined in claim 1 including weld means for rigidly connecting said first flange portion of said base member to said second flange portion of said

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

High flow capacity thermally responsive valve apparatus particularly adapted for use in the cooling system of an internal combustion engine. The valve apparatus has basically three major integral elements which are joined together to provide a relatively low cost structurally strong device.

Description

United States Patent 11 1 Backman 1 5] Jan. 7, 1975 THERMALLY RESPON SIVE VALVE 3,268,109 8/1966 Coppens 29/454 x APPARATUS 3,292,856 12/1966 Beatenbough ct a1. 236/34 75 l t w B k W l d M 3,768,731 10/1973 Clifford et al. 236/346 1 ac ay FOREIGN PATENTS OR APPLICATIONS [73] Asslgnee: standard'Thomsm Corporation 1,917,925 11 1970 Germany 236/34 Waltham, Mass.
[22] Filed; Apr, 18, 1973 Primary ExaminerEdward G. Favors Attorney, Agent, or FirmJacox & Meckstroth [21] App]. No.1 352,195
[57] ABSTRACT [52] US. Cl. 236/34 High flow capacity thermally responsive valve appara- [51] Int. Cl. F01p 7/16 tus particularly adapted for use in the cooling system [58] Field of Search 236/34, 34.5, 100, 29/454 of an internal combustion engine. The valve apparatus has basically three major integral elements which are [56] References Cited joined together to provide a relatively low cost struc- UNITED STATES PATENTS wrally Strong device- 2,881,616 4/1959 Clifford etal 236/34 X 3 Claims, 2 Drawing Figures TI-IERMALLY RESPONSIVE VALVE APPARATUS BACKGROUND OF THE INVENTION Numerous thermally responsive valve devices have been created which are specifically for use in the cooling system of an internal combustion engine. However, most of such devices are relatively costly to produce, and those which are not costly are frequently shortlived or are subject to defective operation.
It is an object of this invention to provide thermally responsive valve apparatus which is particularly adapted to control fluid flow in the cooling system of an internal combustion engine, in which the apparatus has relatively high fluid flow capacity in consideration of its physical size and in which the apparatus is longlived.
It is another object of this invention to provide such apparatus which can be produced at relatively low costs.
Another object of this invention is to provide such apparatus which is structurally strong but which is constructed of relatively thin material.
Other objects and advantages reside in the construction of the invention, combinations thereof, the method of manufacture, and the mode of operation, as will become more apparent from the following description.
BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is an exploded perspective view of thermally responsive valve apparatus of this invention.
FIG. 2 is a side sectional view of the apparatus of FIG. 1.
DESCRIPTION OF THE PREFERRED EMBODIMENT Thermally responsive valve apparatus of this invention comprises primarily three major elements: a bridge element 10, a guide element 12, and a closure element 14.
The bridge element has an annular vertical portion and an annular horizontal portion 22. An annular valve seat portion 23, at the lower part of the vertical portion 20, is joined to a plurality of arm portions 24 which extend angularly upwardly from the valve seat portion 23 and terminate in an annular or apertured abutment portion 26. The portions 20, 22, 23, 24, and 26 of the bridge element 10 are integral and may be formed from a thin piece of material, such as metallic sheet material or the like, by a progressive stamping operation or the like.
The guide element 12 has an annular horizontal portion 30, an annular vertical portion 32, and a plurality of leg portions 34 which extend downwardly from the vertical portion 32 and terminate in an annular or apertured guide portion 36. The portions 30, 32, 34, and 36 of the guide element 12 are integral and may be formed from a thin piece of material, such as metallic sheet material or the like, by a progressive stamping operation or the like.
The closure element 14 has a closure portion 40 which has a'centrally located, downwardly inclined, recess 37 within which is retained a thermally responsive actuator member 42 having an actuator stem 44. The thermally responsive actuator member 42 may be of any suitable type and may be, for example, of the type which is shown in US. Pat. Nos. 2,806,375 and 2,806,376. The lower part of the actuator member 42 is positioned within the guide portion 36 of the guide element 12. The actuator stem 44 is preferably threaded and has a nut 46 threadedly attached thereto.
A helical resilient member or spring 50 encompasses the actuator member 42 and the guide portion 36 and engages the leg portions 34 and the closure portion 40 and urges the closure portion 40 toward the valve seat portion 23 of the bridge element 10. The nut 46 engages the abutment portion 26 and determines the position of the actuator stem 44 with respect to the actuator member 42. A part of the nut 46 may extend through the annular abutment portion 26 and is preferably attached thereto. The actuator stem 44 may be threadedly adjusted with respect to the nut 46 and thus is adjusted in its position with respect to the actuator member 42.
The annular horizontal portion 22 of the bridge element 10 and the annular horizontal portion 30 of the guide element 12 are in engagement one with the other. The vertical portion 20 of the bridge element 10 is shown in engagement with the vertical portion 32 of the guide element 12. The annular horizontal portions 22 and 30 and/or the annular vertical portions 20 and 32 are attached together by any suitable means, such as by soldering, welding, brazing, and the like. The annular portions 20, 22, 30 and 32 thus form a structurally strong flange section which is adapted to be clamped between two members of a fluid conduit, not shown.
As the valve apparatus of this invention is positioned within a fluid conduit, the actuator member 42 is positioned on the upstream side thereof so that the actuator member 42 is engaged by fluid prior to movement of the fluid through the valve apparatus. The closure portion 40, when positioned as shown in FIG. 2, in engagement with the valve seat portion 23, prevents flow of fluid through the fluid conduit.
When fluid which engages the actuator member 42 rises above a predetermined temperature, there is relative movement between the actuator member 42 and the actuator stem 44. Due to the fact that the actuator stem 44 is retained by the nut 46, the actuator stem 44 does not move. Therefore, the actuator member 42 moves downwardly and moves therewith the closure portion 40. Thus, the closure portion 40 moves from engagement with the annular valve seat portion 23, and fluid flow is permitted through the opening formed by the annular valve seat portion 23. Such movement of the closure portion 40 is against the forces of the resilient member 50. When the temperature of the fluid engaging the actuator member 42 is reduced below a predetermined value, the resilient member 50 moves the closure portion 40 and the actuator member 42 upwardly to the position thereof shown in FIG. 2, and the valve apparatus is again closed.
Thus, it is understood that the thermally responsive valve apparatus of this invention may be sturdily constructed of materials having relatively thin dimensions. Because the thermally responsive valve apparatus of this invention is constructed of integral elements, the valve apparatus of this invention can be produced on a large volume basis at relatively low costs.
Although the preferred embodiment of the device has been described, it will be understood that within the purview of this invention, various changes may be made in the form, details, proportion and arrangement of parts, the combination thereof and mode of operation, which generally stated consist in a device capable of carrying out the objects set forth, as disclosed and defined in the appended claims.
The invention having thus been described, the following is claimed:
l. Thermally responsive valve apparatus comprising a one-piece sheet metal base member including a first cylindrical portion integrally connected to a first annular flange portion projecting radially outwardly from said first cylindrical portion, said base member further including an integral bracket portion projecting downwardly from said cylindrical portion and defining a lower guide opening aligned axially with said first cylindrical portion, a one-piece sheet metal bridge member including a second cylindrical portion integrally connecting an inwardly disposed annular seat portion to a second annular flange portion projecting radially outwardly from said second cylindrical portion, said second cylindrical portion of said bridge member having an outer diameter substantially the same as the inner diameter of said first cylindrical portion of said base member and in interfitting relation with said first cylindrical portion surrounding said second cylindrical por' tion, said second annular flange portion of said bridge member disposed in overlying adjacent relation on said first annular flange portion of said base member, a closure member disposed within said base member and having a frusto-conical. portion, said closure member further including an outer peripheral edge portion engaging said seat portion, and a temperature responsive actuator positioned within said guide opening and connecting said closure member to said bridge member.
2. Apparatus as defined in claim 1 wherein said closure member includes a generally cylindrical inner portion integrally connected to said frusto-conical portion by an annular portion which cooperates with said inner portion and said frusto-conical portion to define an annular cavity facing said bracket portion of said base member.
3. Apparatus as defined in claim 1 including weld means for rigidly connecting said first flange portion of said base member to said second flange portion of said

Claims (3)

1. Thermally responsive valve apparatus comprising a one-piece sheet metal base member including a first cylindrical portion integrally connected to a first annular flange portion projecting radially outwardly from said first cylindrical portion, said base member further including an integral bracket portion projecting downwardly from said cylindrical portion and defining a lower guide opening aligned axially with said first cylindrical portion, a one-piece sheet metal bridge member includinG a second cylindrical portion integrally connecting an inwardly disposed annular seat portion to a second annular flange portion projecting radially outwardly from said second cylindrical portion, said second cylindrical portion of said bridge member having an outer diameter substantially the same as the inner diameter of said first cylindrical portion of said base member and in interfitting relation with said first cylindrical portion surrounding said second cylindrical portion, said second annular flange portion of said bridge member disposed in overlying adjacent relation on said first annular flange portion of said base member, a closure member disposed within said base member and having a frusto-conical portion, said closure member further including an outer peripheral edge portion engaging said seat portion, and a temperature responsive actuator positioned within said guide opening and connecting said closure member to said bridge member.
2. Apparatus as defined in claim 1 wherein said closure member includes a generally cylindrical inner portion integrally connected to said frusto-conical portion by an annular portion which cooperates with said inner portion and said frusto-conical portion to define an annular cavity facing said bracket portion of said base member.
3. Apparatus as defined in claim 1 including weld means for rigidly connecting said first flange portion of said base member to said second flange portion of said bridge member.
US352195A 1973-04-18 1973-04-18 Thermally responsive valve apparatus Expired - Lifetime US3858801A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US352195A US3858801A (en) 1973-04-18 1973-04-18 Thermally responsive valve apparatus
US358590A US3858800A (en) 1973-04-18 1973-05-09 Thermally responsive valve apparatus
DE2417897A DE2417897C2 (en) 1973-04-18 1974-04-11 Temperature dependent valve
JP49043241A JPS5926831B2 (en) 1973-04-18 1974-04-17 Thermal response valve device
CA197,707A CA1012516A (en) 1973-04-18 1974-04-17 Thermally responsive valve apparatus
IT68236/74A IT1009480B (en) 1973-04-18 1974-04-17 SPECIAL THERMOSTATIC VALVE FOR COOLING SYSTEMS OF INTERNAL COMBUSTION ENGINES
FR7413335A FR2226601B1 (en) 1973-04-18 1974-04-17
GB1685074A GB1443266A (en) 1973-04-18 1974-04-17 Thermally responsive valve apparatus
BE143372A BE813910A (en) 1973-04-18 1974-04-18 THERMO-SENSITIVE VALVE UNITS

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US352195A US3858801A (en) 1973-04-18 1973-04-18 Thermally responsive valve apparatus

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US3858801A true US3858801A (en) 1975-01-07

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US352195A Expired - Lifetime US3858801A (en) 1973-04-18 1973-04-18 Thermally responsive valve apparatus

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5074716A (en) * 1989-12-06 1991-12-24 Marathon Oil Company Offshore jacket having increased buoyancy
US5961039A (en) * 1997-03-04 1999-10-05 Vernet S.A. Rapidly mounted thermostat

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881616A (en) * 1956-06-20 1959-04-14 Gen Motors Corp Thermostatic power elements
US3268109A (en) * 1963-07-05 1966-08-23 Inland Steel Co Shipping container and method of manufacture thereof
US3292856A (en) * 1964-11-16 1966-12-20 Gen Motors Corp Shaftless unbalanced thermostatic valve
US3768731A (en) * 1971-08-25 1973-10-30 Altair Inc Fail safe thermostatic switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881616A (en) * 1956-06-20 1959-04-14 Gen Motors Corp Thermostatic power elements
US3268109A (en) * 1963-07-05 1966-08-23 Inland Steel Co Shipping container and method of manufacture thereof
US3292856A (en) * 1964-11-16 1966-12-20 Gen Motors Corp Shaftless unbalanced thermostatic valve
US3768731A (en) * 1971-08-25 1973-10-30 Altair Inc Fail safe thermostatic switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5074716A (en) * 1989-12-06 1991-12-24 Marathon Oil Company Offshore jacket having increased buoyancy
US5961039A (en) * 1997-03-04 1999-10-05 Vernet S.A. Rapidly mounted thermostat

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Publication number Publication date
BE813910A (en) 1974-08-16

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