US3913781A - Expansion tanks of cooling systems - Google Patents

Expansion tanks of cooling systems Download PDF

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Publication number
US3913781A
US3913781A US512222A US51222274A US3913781A US 3913781 A US3913781 A US 3913781A US 512222 A US512222 A US 512222A US 51222274 A US51222274 A US 51222274A US 3913781 A US3913781 A US 3913781A
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US
United States
Prior art keywords
cap
tank
capsule
neck
tank body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US512222A
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English (en)
Inventor
Bernard Andreux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renault SA
Original Assignee
Renault SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renault SA filed Critical Renault SA
Application granted granted Critical
Publication of US3913781A publication Critical patent/US3913781A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/029—Expansion reservoirs

Definitions

  • the present invention relates generally to expansion tanks for cooling systems of the type having a pressurevacuum valve, and more particularly to an improved expansion tank for a cooling system of the type having a plastic tank and cap and a pressure-vacuum valve capsule of known design, characterized by the fact that the pressure vacuum valve capsule is mounted as a seal SUMMARY OF THE INVENTION
  • a method for producing expansion tanks for cooling systems of the character described herein which avoids the aforementioned disadvantage and such other disadvantages associated therewith through the arrangement of dissociating the parts of molded plastic from the mechanical parts, such parts being produced by different industries.
  • Yet another object of this invention is to provide an improved method of producing and an improved expansion tank arising therefrom which virtually eliminates all costs of assembly of the tanks, as heretofore were encountered.
  • Still another object of the present invention is to provide an improved expansion tank of the character described which is light, strong and compact, and which may be produced at a lower price than previously known expansion tank structures.
  • the expansion tank of the present invention which is of the type having the tank and its cap made of plastic and a pressure-vacuum valve capsule, being characterized by the fact that the pressure-vacuum valve capsule is mounted as a seal between the tank and the cap simply by screwing the cap thereon.
  • the expansion tank of the present invention is characterized in addition by the fact that it can be drained from the bottom, this being made possible by the plastic molding, and thus there is avoided the plunger tube which passes through the cap in the conventional forms of expansion tanks. Further, according to this invention, the cap is provided with holes from the exterior opening into air passage gaps at the level of the seal,
  • FIG. 1 is a top view of the cap of an expansion tank formed according to the present invention
  • FIG. 2 is a sectional view taken-along the broken line AOA of FIG. 1;
  • FIG. 3 is a partial view in detail of FIG. 2, with the cap being screwed onto the neck of the expansion tank and the pressure vacuum capsule being in place;
  • FIG. 4 is a partially cut-away side view of the expansion tank of the invention with the cap being removed from the capsule.
  • a plastic cap 1 of conventional configuration is provided with a plurality of vent holes shown being four in number, designated la, lb, lc and 1d, and opening at the deepest end of four air passage gaps 13 with sloped bottoms 12, in the end wall thereof and is threaded as indicated at 2 on the inner periphery of the side wall thereof to facilitate securement to the neck 10 of the expansion tank V by screwing, the neck 10 being threaded externally, to receive the mp1 in threaded engagement.
  • a circular gasket 9 is positioned, as shown in FIG. 3, on which a pressurevacuum valve capsule 3 is pressed by screwing the cap 1 onto the neck 10.
  • the sloped bottoms 12 of the air passage gaps 13 prevent any air tightness between the pressure vacuum valve 3 and the plug 1. This disposition, which makes an indirect communication between holes la, lb, lc, Id and air escape holes 7 in the pressure vacuum valve top prevent also the introduction of any outside dirt inside valve 3 and its seals.
  • This pressure-vacuum valve capsule 3 is of the type having an overpressure valve 5 pressing against a circular seal 6 disposed about an opening 8 in the lower element thereof under the action of a spring 4, the air escape holes 7 in the upper element thereof, and a vacuum valve, not shown in the drawing.
  • the substantially tubular body V of the expansion tank is a conventional plastic type and is provided with a lower tube 1 1 which may be connected to the hydraulic cooling system by which gas can be evacuated.
  • the plastic used to make the expansion tank V and its cap 1 is, for example, a polyamide type reinforced with fiberglass.
  • An expansion tank for a cooling system comprising:
  • a plastic cap having an internally threaded portion and being adapted to be threadably engaged upon said neck portion of said tank body;
  • a metallic pressure vacuum valve capsule having means thereon for seating upon the edge of said neck portion for supporting said capsule in said tank body;

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Closures For Containers (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Packages (AREA)
US512222A 1973-10-05 1974-10-04 Expansion tanks of cooling systems Expired - Lifetime US3913781A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7335686A FR2247107A5 (enrdf_load_stackoverflow) 1973-10-05 1973-10-05

Publications (1)

Publication Number Publication Date
US3913781A true US3913781A (en) 1975-10-21

Family

ID=9125991

Family Applications (1)

Application Number Title Priority Date Filing Date
US512222A Expired - Lifetime US3913781A (en) 1973-10-05 1974-10-04 Expansion tanks of cooling systems

Country Status (5)

Country Link
US (1) US3913781A (enrdf_load_stackoverflow)
ES (1) ES430333A1 (enrdf_load_stackoverflow)
FR (1) FR2247107A5 (enrdf_load_stackoverflow)
GB (1) GB1478359A (enrdf_load_stackoverflow)
IT (1) IT1014261B (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036393A (en) * 1975-07-24 1977-07-19 Societe De Diffusion Neiman Cap for a fuel tank
US4165816A (en) * 1978-04-10 1979-08-28 Dapco Industries Vent cap
US4181233A (en) * 1978-11-15 1980-01-01 Becton, Dickinson And Company One-way valve stopper
US4823969A (en) * 1988-02-01 1989-04-25 Caldwell Michael C Carbonation cap
US4828129A (en) * 1987-03-06 1989-05-09 Jonkers Godefridus H J Venting cover
WO1994008866A1 (de) * 1992-10-09 1994-04-28 Michael Hertrampf Verschluss für eine flasche oder dergleichen
US5960708A (en) * 1998-06-16 1999-10-05 Detemple; Donald Edward Atmospheric controlled shipping container
EP1147992A1 (de) * 2000-04-22 2001-10-24 IBS Filtran Kunststoff-/Metallerzeugnisse GmbH Verschlusssystem für Kunststofformteile
US20070007233A1 (en) * 2003-06-30 2007-01-11 Brown Scott L Closure for collapsible contatiner
JP2014114702A (ja) * 2012-12-06 2014-06-26 Suzuki Motor Corp 車両用リザーブタンク装置
CN110651126A (zh) * 2017-05-22 2020-01-03 齐尔美特股份公司 紧凑型膨胀箱
US20240092160A1 (en) * 2021-04-27 2024-03-21 Zhejiang Geely Holding Group Co., Ltd. Expansion tanks for vehicle cooling systems and vehicle cooling systems

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019128625B3 (de) * 2019-10-23 2020-11-26 Bayerische Motoren Werke Aktiengesellschaft Ausgleichsbehältervorrichtung für ein Kühlmittel eines Motorkühlsystems eines Kraftfahrzeugs

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1595177A (en) * 1924-02-19 1926-08-10 Frederick V Winters Preserving jar
US2436566A (en) * 1944-07-28 1948-02-24 Benjamin D Goldberg Safety vent for pressure cookers
US2820569A (en) * 1955-05-31 1958-01-21 Gen Motors Corp Cap for tank filler pipe
US3115264A (en) * 1962-02-27 1963-12-24 Guala Angelo Bottle closure
US3589545A (en) * 1969-09-19 1971-06-29 Greif Brothers Corp The Vented closure
US3628704A (en) * 1969-12-10 1971-12-21 Diamond Int Corp Container with venting gasket
US3770154A (en) * 1971-08-05 1973-11-06 E Johnson Nursing bottle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1595177A (en) * 1924-02-19 1926-08-10 Frederick V Winters Preserving jar
US2436566A (en) * 1944-07-28 1948-02-24 Benjamin D Goldberg Safety vent for pressure cookers
US2820569A (en) * 1955-05-31 1958-01-21 Gen Motors Corp Cap for tank filler pipe
US3115264A (en) * 1962-02-27 1963-12-24 Guala Angelo Bottle closure
US3589545A (en) * 1969-09-19 1971-06-29 Greif Brothers Corp The Vented closure
US3628704A (en) * 1969-12-10 1971-12-21 Diamond Int Corp Container with venting gasket
US3770154A (en) * 1971-08-05 1973-11-06 E Johnson Nursing bottle

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4036393A (en) * 1975-07-24 1977-07-19 Societe De Diffusion Neiman Cap for a fuel tank
US4165816A (en) * 1978-04-10 1979-08-28 Dapco Industries Vent cap
US4181233A (en) * 1978-11-15 1980-01-01 Becton, Dickinson And Company One-way valve stopper
US4828129A (en) * 1987-03-06 1989-05-09 Jonkers Godefridus H J Venting cover
US4823969A (en) * 1988-02-01 1989-04-25 Caldwell Michael C Carbonation cap
WO1994008866A1 (de) * 1992-10-09 1994-04-28 Michael Hertrampf Verschluss für eine flasche oder dergleichen
US5960708A (en) * 1998-06-16 1999-10-05 Detemple; Donald Edward Atmospheric controlled shipping container
WO2001081188A1 (de) * 2000-04-22 2001-11-01 Ibs Filtran Kunststoff-/ Metallerzeugnisse Gmbh Verschlusssystem für kunststoffformteile
EP1147992A1 (de) * 2000-04-22 2001-10-24 IBS Filtran Kunststoff-/Metallerzeugnisse GmbH Verschlusssystem für Kunststofformteile
US20060157487A1 (en) * 2000-04-22 2006-07-20 Marco Rosendahl Closing system for plastic shaped parts
US7823695B2 (en) 2000-04-22 2010-11-02 Ibs Filtran Kunststoff-/Metallerzeugnisse Gmbh Closing system for plastic shaped parts
US20070007233A1 (en) * 2003-06-30 2007-01-11 Brown Scott L Closure for collapsible contatiner
JP2014114702A (ja) * 2012-12-06 2014-06-26 Suzuki Motor Corp 車両用リザーブタンク装置
CN110651126A (zh) * 2017-05-22 2020-01-03 齐尔美特股份公司 紧凑型膨胀箱
US20240092160A1 (en) * 2021-04-27 2024-03-21 Zhejiang Geely Holding Group Co., Ltd. Expansion tanks for vehicle cooling systems and vehicle cooling systems
US12220981B2 (en) * 2021-04-27 2025-02-11 Zhejiang Geely Holding Group Co., Ltd. Expansion tanks for vehicle cooling systems and vehicle cooling systems

Also Published As

Publication number Publication date
FR2247107A5 (enrdf_load_stackoverflow) 1975-05-02
ES430333A1 (es) 1976-09-16
GB1478359A (en) 1977-06-29
IT1014261B (it) 1977-04-20

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