US3690347A - Pressure vessel - Google Patents

Pressure vessel Download PDF

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Publication number
US3690347A
US3690347A US98593A US3690347DA US3690347A US 3690347 A US3690347 A US 3690347A US 98593 A US98593 A US 98593A US 3690347D A US3690347D A US 3690347DA US 3690347 A US3690347 A US 3690347A
Authority
US
United States
Prior art keywords
container
bladder
supporting member
mouth
cover member
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
US98593A
Other languages
English (en)
Inventor
Abduz Zahid
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.)
GREE HYDRAULICS OF CALIFORNIA Inc
S-P MANUFACTURING Corp A CORP OF OHIO
Original Assignee
Greer Hydraulics Inc
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 Greer Hydraulics Inc filed Critical Greer Hydraulics Inc
Application granted granted Critical
Publication of US3690347A publication Critical patent/US3690347A/en
Assigned to GREE HYDRAULICS OF CALIFORNIA, INC. reassignment GREE HYDRAULICS OF CALIFORNIA, INC. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: GREER HYDRAULICS, INCORPORATED, GREER HYDRAULICS OF CALIFORNIA, INC.
Assigned to VSI CORPORATION reassignment VSI CORPORATION MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE 12-16-81 Assignors: GREER HYDRAULICS, INCORPORATED
Assigned to FIGGIE INTERNATIONAL INC., A CORP. OF DE reassignment FIGGIE INTERNATIONAL INC., A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: VSI CORPORATION
Assigned to S-P MANUFACTURING CORPORATION, THE, A CORP. OF OHIO reassignment S-P MANUFACTURING CORPORATION, THE, A CORP. OF OHIO ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FIGGIE INTERNATIONAL INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/04—Devices damping pulsations or vibrations in fluids
    • F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
    • F16L55/05—Buffers therefor
    • F16L55/052—Pneumatic reservoirs
    • 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
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
    • F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
    • F15B1/12—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means attached at their periphery
    • F15B1/14—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means attached at their periphery by means of a rigid annular supporting member
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/20—Accumulator cushioning means
    • F15B2201/205—Accumulator cushioning means using gas
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/315—Accumulator separating means having flexible separating means
    • F15B2201/3152—Accumulator separating means having flexible separating means the flexible separating means being bladders
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/315—Accumulator separating means having flexible separating means
    • F15B2201/3156—Accumulator separating means having flexible separating means characterised by their attachment
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/40—Constructional details of accumulators not otherwise provided for
    • F15B2201/415—Gas ports
    • F15B2201/4155—Gas ports having valve means
    • 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
    • F15B2201/00—Accumulators
    • F15B2201/40—Constructional details of accumulators not otherwise provided for
    • F15B2201/43—Anti-extrusion means
    • F15B2201/435—Anti-extrusion means being fixed to the separating means

Definitions

  • ABSTRACT This invention relates to the art of pressure vessels of the type having a cylindrical container, one end of which is closed and has a port, and the other end of which defines an open mouth.
  • the container has a deformable bladder of resilient material positioned therein, said bladder having a large mouth with an annular supporting member secured thereto and extending outwardly therefrom.
  • the free edge portion of the supporting member which is longitudinally spaced from the region where the bladder is secured thereto, extends into an annular groove defined between the inner surface of the open mouth of the container and the outer periphery of a cover member positioned in the upper portion of the supporting member, the opposed surfaces of the annular groove and the free edge portion of the supporting member being bonded together to seal the container.
  • a pressure vessel is of the type comprising a rigid container with a deformable bladder therein intervening between two ports, through one of which a large amount of fluid may flow into and out of the chamber defined between the exterior of the bladder and the rigid container, and through the other of which the bladder is charged with gas under pressure, if the bladder which is in communication with said last named port is not dependably secured in place or if the chamber into which the fluid flows is not dependably sealed, leakage may occur with resultant malfunctioning of the pressure vessel.
  • FIG. 1 is a longitudinal cross sectional view of a pressure vessel made in accordance with the invention herein,
  • FIG. 2 is an enlarged detailed view showing the connection of the supporting member to the container
  • FIG. ,3 is a fragmentary detail view illustrating a step in the assembly of the pressure vessel.
  • the pressure vessel illustratively comprises a substantially cylindrical container 11, of rigid material such as steel or aluminum, capable of withstanding the pressure to which it is to be subjected in use.
  • the container has one end closed as at 12 and a sleeve 13 is positioned in an axial opening 14 in such closed end.
  • the inner end 15 of the sleeve has an outwardly extending annular flange 16 which rests on the periphery of opening 14, and the sleeve is secured in fixed position as by welding as at 17.
  • the bore 18 of the sleeve 13, which defines a port through which fluid may flow, has its inner end beveled as at 19 to define a valve seat.
  • a closure head or cover member 21 Positioned in the mouth of the container 11 remote from the closed end 12 thereof is a closure head or cover member 21 which illustratively has an annular groove 22 in its undersurface defining a relatively narrow peripheral rim 23 on its undersurface and an axial hub 24 the inner end 25 of which extends beyond the plane of peripheral rim 23.
  • the closure head 21 has an axial bore extending therethrough, the portion 26 of said bore extending through the axial hub 24 being of smaller diameter than the outer portion 27 of said bore, a conventional gas charging valve 28 being removably secured in said outer bore portion 27.
  • the periphery of said closure head at its outer surface is beveled as at 31 and the inner surface of the outer end or mouth 32 of said container 11 has a corresponding bevel 33.
  • the two beveled surfaces 31 and 33 when the closure head is positioned in the mouth 32 of the container thus form a V groove 34 shown in FIG. 2.
  • a deformable partition illustratively in the form of an elongated bladder 35 of rubber or similar material having like characteristics.
  • the bladder 35 is closed at one end as at 36 and such closed end 36 has secured thereon hereon and preferably molded integral therewith a rigid button or valve member 37 which is axially aligned with the bladder and designed to move against the valve seat 19 when the bladder is expanded to close the port 18.
  • the mouth 38 of the bladder 35 has a thickened rim 39 to which an annular supporting member 41 is affixed by being bonded thereto hereto or molded therein as illustratively shown.
  • the supporting member or ring 41 is of relatively thin resilient sheet metal such as sheet steel and has a curved lower or mounting portion 42 convex on its outer surface as at 43 and an upper or retaining portion 44.
  • the lower portion 42 is molded integrally into the thickened rim 39 of the bladder 35 with the upper portion 44 being transversely spaced outwardly from the lower portion 42 to define an annular seating shoulder 45.
  • the upper portion 44 of the supporting member 41 initially tapers outwardly slightly as shown in FIG. 3 so that the outer diameter of its free edge 46 is just slightly greater than the inner diameter of the container 11 adjacent the mouth thereof and below the beveled surface 33.
  • the supporting ring is forced into the container mouth to an extent such that the upper or outer edge portion 46 of the supporting member will protrude outwardly slightly beyond the lower end 47 of the beveled surface 33 as is shown in FIG. 2. Due to the slight outward taper of the upper portion 44 of the supporting member, its outer surface will press snugly against the inner surface of the container just slightly below the lower end 47 of beveled surface 33, without any discontinuities or gaps.
  • the closure member 21 is positioned in the substantially cylindrical upper portion 44 of the supporting member with the peripheral rim 23 of the closure member resting against locating shoulder 45 of the supporting member.
  • the top surface 21' of the closure member is substantially flush with the mouth 32 of the container and the beveled surface 31 of the closure member is aligned with the beveled surface 33-of the container to define such V groove 34.
  • the upper edge 46 of the supporting member will thus protrude upwardly into the groove 34 beyond the apex thereof.
  • closure member 21 fits relatively loosely in the supporting ring to insure that the peripheral rim 23 of the closure member will rest on the locating shoulder 45 in order that the upper portion 46 of the supporting ring will protrude freely into V groove 34.
  • outer edge of peripheral rim 23 and the outer surface 21' of the closure member must be greater than the distance d" between the locating shoulder 45 to the outer edge 46 of supporting ring 41 to insure that the outer edge portion protrudes into V groove 34.
  • a weld 55 is formed in the V groove 34 which will securely join the opposed beveled surfaces 31, 33 as well as the protruding portion 46 of the supporting ring 41 together.
  • the region where the bond is formed i.e. in the annular groove 34
  • the region where the bond is formed is remote from the bonded region of the rim 39 to the lower portion 42.
  • a relatively large mass of metal is provided between the bonding region defined by the groove 34, and the rim 39 of the bladder. More particularly, this mass of material is provided by the cover member 21 and the wall of the container 11, these members functioning as a heat sink to disperse the heat engendered by the welding action in the annular groove 34.
  • peripheral rim 23 of the cover member rests on the annular supporting surface 45 of the supporting member so there either is no contact or only a minimum contact between the peripheral rim of the cover member and the rim 39 of the bladder to minimize the transfer of heat.
  • a pressure vessel comprising an elongated container of rigid material, having one end open and the other end closed, said closed end having an axial port therethrough, a deformable bladder of resilient material in said container, said bladder having a mouth at one end, and being closed at its other end, an annular sup porting member of relatively thin material bonded to the mouth of said bladder and having a retaining portion extending outwardly therefrom, a cylindrical cover member positioned in the annular retaining portion, said cover member and its encompassing supporting member being positioned in the mouth of said con tainer, the opposed surfaces of said cover member and the mouth of said container adjacent the outer ends thereof being beveled to define an annular groove therebetween that is substantially V-shaped in cross section having its apex directed downwardly, with the free edge of said retaining portion protruding slightly through said apex into said annular groove, and weld means bonding the opposed beveled surfaces of said I groove in said cover member and said container and opposed surfaces of the protruding portion of said supporting

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
US98593A 1970-12-16 1970-12-16 Pressure vessel Expired - Lifetime US3690347A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9859370A 1970-12-16 1970-12-16

Publications (1)

Publication Number Publication Date
US3690347A true US3690347A (en) 1972-09-12

Family

ID=22270030

Family Applications (1)

Application Number Title Priority Date Filing Date
US98593A Expired - Lifetime US3690347A (en) 1970-12-16 1970-12-16 Pressure vessel

Country Status (9)

Country Link
US (1) US3690347A (OSRAM)
JP (1) JPS5428607B1 (OSRAM)
BR (1) BR7107979D0 (OSRAM)
CA (1) CA973449A (OSRAM)
DE (1) DE2162307C3 (OSRAM)
FR (1) FR2117892B1 (OSRAM)
GB (1) GB1379599A (OSRAM)
IT (1) IT944016B (OSRAM)
SE (1) SE377494B (OSRAM)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918497A (en) * 1973-05-30 1975-11-11 Greer Hydraulics Inc Pressure accumulator
US3960178A (en) * 1974-09-25 1976-06-01 Mercier Jacques H Pressure vessel
US3963052A (en) * 1973-02-20 1976-06-15 Mercier Jacques H Pressure vessel
FR2469585A1 (fr) * 1979-11-13 1981-05-22 Greer Hydraulics Inc Reservoir de pression et son procede de fabrication
DE3131028A1 (de) * 1980-08-14 1982-05-06 Greer Hydraulics, Inc., 91311 Chatsworth, Calif. Druckspeicher mit auswechselbare blase
US4352231A (en) * 1979-11-13 1982-10-05 Vsi Corporation Method of forming a low pressure low cost accumulator
US4921004A (en) * 1989-08-15 1990-05-01 Amtrol Inc. Piercing surge regulator valve and apparatus
US20080060711A1 (en) * 2004-09-08 2008-03-13 Armin Kort Hydraulic Accumulator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881519A (en) * 1973-04-23 1975-05-06 Greer Hydraulics Inc Pressure vessel
DE2402711C2 (de) * 1974-01-21 1986-09-18 Greer Hydraulics, Inc., Los Angeles, Calif. Druckbehälter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2878834A (en) * 1955-02-11 1959-03-24 Mercier Jean Pressure vessels
US3109458A (en) * 1959-12-16 1963-11-05 Mercier Jean Pressure vessels
US3138176A (en) * 1955-03-14 1964-06-23 Mercier Jean Pressure device
US3500866A (en) * 1967-08-01 1970-03-17 Greer Hydraulics Inc Pressure vessel
US3540482A (en) * 1967-09-25 1970-11-17 Bendix Corp Accumulator inlet fitting

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2878834A (en) * 1955-02-11 1959-03-24 Mercier Jean Pressure vessels
US3138176A (en) * 1955-03-14 1964-06-23 Mercier Jean Pressure device
US3109458A (en) * 1959-12-16 1963-11-05 Mercier Jean Pressure vessels
US3500866A (en) * 1967-08-01 1970-03-17 Greer Hydraulics Inc Pressure vessel
US3540482A (en) * 1967-09-25 1970-11-17 Bendix Corp Accumulator inlet fitting

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963052A (en) * 1973-02-20 1976-06-15 Mercier Jacques H Pressure vessel
US3918497A (en) * 1973-05-30 1975-11-11 Greer Hydraulics Inc Pressure accumulator
US3960178A (en) * 1974-09-25 1976-06-01 Mercier Jacques H Pressure vessel
FR2469585A1 (fr) * 1979-11-13 1981-05-22 Greer Hydraulics Inc Reservoir de pression et son procede de fabrication
US4352231A (en) * 1979-11-13 1982-10-05 Vsi Corporation Method of forming a low pressure low cost accumulator
DE3131028A1 (de) * 1980-08-14 1982-05-06 Greer Hydraulics, Inc., 91311 Chatsworth, Calif. Druckspeicher mit auswechselbare blase
US4921004A (en) * 1989-08-15 1990-05-01 Amtrol Inc. Piercing surge regulator valve and apparatus
US20080060711A1 (en) * 2004-09-08 2008-03-13 Armin Kort Hydraulic Accumulator
US7591284B2 (en) * 2004-09-08 2009-09-22 Hydac Technology Gmbh Hydraulic accumulator

Also Published As

Publication number Publication date
BR7107979D0 (pt) 1973-03-29
DE2162307A1 (de) 1972-08-24
DE2162307B2 (de) 1980-04-30
CA973449A (en) 1975-08-26
FR2117892A1 (OSRAM) 1972-07-28
SE377494B (OSRAM) 1975-07-07
JPS5428607B1 (OSRAM) 1979-09-18
FR2117892B1 (OSRAM) 1976-08-20
IT944016B (it) 1973-04-20
DE2162307C3 (de) 1980-12-18
GB1379599A (en) 1975-01-02

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Legal Events

Date Code Title Description
AS Assignment

Owner name: GREE HYDRAULICS OF CALIFORNIA, INC., A CORP. OF CA

Free format text: MERGER;ASSIGNOR:GREER HYDRAULICS, INCORPORATED, GREER HYDRAULICS OF CALIFORNIA, INC.;REEL/FRAME:004014/0964

Effective date: 19811218

AS Assignment

Owner name: VSI CORPORATION

Free format text: MERGER;ASSIGNOR:GREER HYDRAULICS, INCORPORATED;REEL/FRAME:004013/0645

Effective date: 19820204

AS Assignment

Owner name: FIGGIE INTERNATIONAL INC., A CORP. OF DE,VIRGINIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VSI CORPORATION;REEL/FRAME:004822/0665

Effective date: 19871218

Owner name: FIGGIE INTERNATIONAL INC., 1000 VIRGINIA CENTER PA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:VSI CORPORATION;REEL/FRAME:004822/0665

Effective date: 19871218

AS Assignment

Owner name: S-P MANUFACTURING CORPORATION, THE, A CORP. OF OHI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:FIGGIE INTERNATIONAL INC.;REEL/FRAME:005017/0972

Effective date: 19890106