US3433268A - Pressure vessel - Google Patents

Pressure vessel Download PDF

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Publication number
US3433268A
US3433268A US632028A US3433268DA US3433268A US 3433268 A US3433268 A US 3433268A US 632028 A US632028 A US 632028A US 3433268D A US3433268D A US 3433268DA US 3433268 A US3433268 A US 3433268A
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United States
Prior art keywords
bladder
bore
tube
container
grommet
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
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US632028A
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English (en)
Inventor
Edward M Greer
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
Shared Technologies Fairchild Telecom Inc
Original Assignee
Greer Hydraulics Inc
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Filing date
Publication date
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Publication of US3433268A publication Critical patent/US3433268A/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
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F15B1/18—Anti-extrusion means
    • F15B1/20—Anti-extrusion means fixed to the separating 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
    • 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
    • F15B1/16—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means in the form of a tube
    • F15B1/165—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means in the form of a tube in the form of a bladder
    • 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
    • F15B2201/3158—Guides for the flexible separating means, e.g. for a collapsed bladder
    • 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

  • valve member In addition, ybecause of the large length over diameter ratio of the bladder and tolerances in manufacturing, the valve member often will not find its seat on the port closure, but rather will be olf center, exposing the thin side walls of the bladder to the open port and thus, rupture the bladder.
  • Another object is to provide an accumulator of the above type in which the bladder is precluded from rubbing against the side wall of the container and is not likely to form sharp folds, thereby preventing rupture of the bladder with resultant failure of the accumulator and in which the formation of pockets between the bladder and container is precluded.
  • Another object is to provide an accumulator of the above type in which turbulence in the outlet port, even at a high rate of flow, is precluded and in which the oil port will remain open until substantially all of the oil is discharged.
  • Another object is to provide a valve member to be carried by the bladder of said accumulator which will not Vbe deformed when it strikes the seat defined by the oil port even with a high rate of flow from such port.
  • the accumulator comprises an elongated substantially cylindro-spherical ciontainer having a central guide member secured at one end thereof and extending axially in the container.
  • An elongated bladder positioned in the container has a mouth at one end secured to the end of the container to which the central guide member is secured, and a tapering grommet is positioned in the bladder adjacent its mouth and extends into the bladder.
  • the bladder encompasses the ⁇ guide member and grommet, and the closed end 4of the bladder which carries a valve member, has secured thereto a second guide member yadapted to telescopically coact with the first guide member so that a sliding iit is provided therebetween.
  • the iirst guide member is provided with suitable apertures to permit gas under pressure to ow therethrough to charge the bladder.
  • the outlet port of the accumulator with which the valve member coacts is conformed as a Venturi to provide a high velocity flow therethrough that will prevent turbulence, and prevent premature closing of the valve member.
  • FIG. l is a longitudinal sectional view of the pressure accumulator according to the invention.
  • FIG. 2 is a detailed longitudinal sectional view of the gas inlet end of the accumulator
  • FIG. 3 is a View similar to FIG. 2 rof the oil port of the pressure accumulator
  • FIG. 4 is a view similar to FIG. 3 of another embodiment of the valve member.
  • the accumulator shown in FIG. 1 comprises an elongated container 11 illustratively substantially cylindre-spherical ⁇ and of strong rigid material capable of withstanding high pressures.
  • the container 11 has axially aligned ports 12 and 13 at opposed ends thereof.
  • a partition 14 Positioned in the container 11 is a partition 14 which preferably is of rubber, natural or synthetic, capable of expansion and llexure.
  • the partition 14 is illustratively in the form of an elongated bladder which has an opening 15 at one end.
  • the opening 15 has associated therewith a substantially frusto-conical grommet 16 which extends inwardly into the bladder tapering to the smaller diameter end 17 thereof.
  • the bladder and grommet are secured to a substantially cylindrical fitting 18 which has an intermediate annular flange 19 defining an annular shoulder 21, with the portion of the flange 19 remote from shoulder 21 having an integral outwardly extending annular iin 22.
  • the portion of the fitting 18 inwardly of the flange 19 is of reduced diameter as at 23 and designed to fit into the corresponding axial bore 24 of the grommet 16.
  • the grommet is integral with the bladder and the mouth or opening 15 of the bladder as well as the bore surface of the grommet are bonded to the fitting as is clearly shown in the drawing. It is understood, however, that the grommet 16 could be a separate and distinct element.
  • the fitting 18 with the bladder and grommet bonded thereto is inserted through the port 12 of the container 11 and securely locked in place by means of a nut 25 screwed on the threaded portion of the fitting, a spacer 26 being interposed between the nut 25 and the adjacent end of the container.
  • a spacer 26 being interposed between the nut 25 and the adjacent end of the container.
  • the bore of the fitting 18 has an internal annular shoulder 28 against which is seated the flanged end 29 of a sleeve 31 which extends axially through the inner end of the fitting and protrudes therefrom as at 32.
  • a sleeve 31 Secured as by force fit in said sleeve 31 is the end of an elongated hollow guide tube 35 which extends axially into the bladder.
  • the inner end 36 of the tube extends outwardly slightly beyond the flange 29.
  • a collar 37 positioned in the bore of the fitting 18 abuts against said end 36.
  • the 'guide tube 35 and associated sleeve 31 are securely retained in position as by a nipple 39 screwed into the bore of the fitting 18 and abutting against the collar 317, an O-ring 41 being interposed between the collar 37 andthe end of the nipple 39 to provide a seal.
  • a lock nut 42 securely retains the nipple in position and the outer end of the nipple is provided with a suitable air valve 43 of conventional type.
  • the closed end of the bladder remote from the opening 15 thereof and axially aligned therewith is of -greater thickness than the remaining portion of the bladder and defines a valve member 40.
  • the bladder is preferably molded with a substantially frusto-conical cup-shaped member 44 of rigid material such as sheet metal in the closed end thereof.
  • the cupshaped member 44 has a top plate 45 secured thereto which has openings 46 to permit flow of the bladder material therein.
  • the top plate has a central opening 47 through which extends the end 4S of a stud 49, the latter being preferably molded in said thickened portion or valve member 40 and extending axially into the bladder and being welded as at 40a to the top plate 45.
  • a second guide tube 51 is positioned in said bladder so that the stud 49 is telescoped in the end thereof, and the second guide tube is secured to the stud as by pinning at 52.
  • the second guide tube 51 is of slightly greater diameter than the first guide tube 35 so that the latter may slidably fit therein as is clearly shown in the draw ings.
  • the guide tube 35 illustratively has a plurality of openings 58 therethrough to permit flow of gas under pressure from the valve 43 into the chamber 59 defined by the bladder.
  • the length of the stud 49 and the guide tube 51 are such that when the inner end 55 of the guide tube 35 abuts against the inner end 56 of the stud 49, the end 57 of the guide tube 51 will be slightly spaced from the inner end 32 of sleeve 31 and all of the openings 58 will be closed by tube 51.
  • the port 13 which is of diameter sufliciently great to permit the bladder and fitting 18 to be inserted therethrough, has mounted therein an outlet closure assembly 61.
  • this assembly is of the general construction shown in U.S. Reissue Patent No. 23,343, by the use of which the closure assembly ⁇ 61 may not be removed so long as there is any substantial pressure in the container.
  • the assembly 61 desirably comprises a housing 62, preferably a tubular member which desirably has an external annular flange ⁇ 60 defining a shoulder 63 at the inner end thereof of outer diameter less than that of port 13.
  • a locking member 64 illustratively a ring of greater outer diameter than said port 13 and deformable to permit its insertion thereinto, encompasses said tubular member and is seated on the rim 65 of port 13, the inner diameter of said ring 64 being less than the outer diameter of shoulder 63 so that said shoulder may seat on said ring.
  • a resilient ring 66 Secured to the top surface of said deformable ring 64 is a resilient ring 66 which encompasses the flange 60 as shown, with the outer periphery of said 4ring 66 adapted to seat against the curved inner surface of the container adjacent port 13.
  • a rubber gasket or O-ring 67 Encompassing the tubular member 62 and in juxtaposition with said port 13 is a rubber gasket or O-ring 67 which serves effectively to prevent leakage between the wall of port 13 and the outer wall of tubular member 62 when a nut 78 is screwed on the externally threaded portion 71 of the tubular member and moves a sleeve 72 against the gasket ⁇ 67 to compress the latter with respect to the deformable ring 64.
  • the bore 70 of the tubular member 62 which defines the oil passageway is of reduced diameter as at 75 adjacent the inner portion 76 thereof, such portion 76 being beveled as shown and defining a seat for valve member 40 carried by the bladder.
  • the bore portion 79 of the tubular member outwardly of the reduced diameter portion 75 is also beveled, although at a lesser angle than that of the beveled portion 76.
  • the bladder 14 may first be charged with gas under pressure through the valve 43.
  • the ygas will flow through the guide tube 35 and through the penforations 58 therein into the bladder 14 to charge the latter.
  • the bladder will expand and elongate until the valve member 40 thereof seats on the beveled portion 76 of bore 70 of ltubular member 62 to close the latter.
  • the gas valve 43 is closed.
  • a fluid such as oil under pressure greater than that of the gas in bladder 14 is lforced through bore 70 of tubular member 62 into the container.
  • valve member 43 will fbe moved inwardly off its seat and such valve member will be retained in axial alignment with the seat 76 'by reason o-f the sliding fit of the guide tube 51 on the guide tube 35, the guide tube 51 moving away from the bore 70 of the tubular member 62, its movement being limited by the abutment of the end y'55 of the tube 35 against the end 56 of stud 49.
  • the bladder will be deformed and the gas therein further compressed.
  • the telescoped tubes 35 and 51 which extend through the bladder 1'4, form a substantially rigid member, even though the bladder is compressed it will be retained in the center of the container 11 so that it will not rub against the wall thereof with resultant wear and possibility of rupture and will not form sharp folds which are also likely to cause rupture of the bladder.
  • the tube ⁇ 51 encompasses the tube 35 and hence before the side Wall of the compressed bladder 14 can move against the end 57 of the outer tube 51 which might cause cutting of the bladder, such end 57 will have been moved in close proximity to the grommet 16 as at 80.
  • the end of the bladder adjacent its mouth will fold inwardly against the grommet there will be a reduced angle of fold as at 80 that will prevent tearing of the mouth of t-he bladder from its ⁇ retaining means and furthermore, since all of the openings 58 will lbe closed 'by the tube 51, there will be no danger of extrusion of said bladder therethrough.
  • the pressure in the upper portion 76 of such bore will be greater than the pressure at the reduced diameter portion 75 thereof and hence premature closing of the valve, due to sucking action, will be precluded, for maximum expulsion of oil from the container 'with resultant high efficiency. Furthermore, the Venturi action provided by such reduced diameter portion will cause the velocity of the flow to be increased and by reason of such high velocity, turbulence in the bore with resultant cross currents will be minimized. As a result, a high rate of flow will be provided fromI the outlet bore 70.
  • valve member 40 When the valve member 40 does finally move against its seat 76, even though it may strike the seat with great impact, due to the fact that the cup-shaped rigid member 44 has a transverse reinforcing top wall 45, the member 44 will not be deformed which could cause it to extrude through bore 70 with resultant failure of the device.
  • FIG. 4 The embodiment shown in FIG. 4 is similar to that shown in FIGS. 1 to 3 and corresponding elements have the same reference numerals primed.
  • FIG. 4 differs substantially solely in the construction of the valve member 40.
  • valve member 40' comprises a substantially fFusto-conical tbody portion 81, preferably of stainless steel, having a tapered side wall 82 and a top wall 83 having passageways 84 therethrough leading into a central cavity 85 in the undersurface of body portion 81.
  • the top wall A83 has an axial stem 86 which is secured to the lower end of a guide tube 51' as by pinning at 52.
  • the blader 14 is initialy molded with the body portion 81 in the closed end thereof and ⁇ with the bladder material flowing through passageways 84 and filling the central cavity 85.
  • the body portion of the valve member is completely embedded in the material of the bladder. This arrangement is desirable when liquids are used that are corrosive to ordinary steel.
  • the body portion 81 is preferably of stainless steel which is highly resistant to corroslon.
  • an accumulator which may be of large size and which will insure that the bladder therein will not rub against the wall of the container with resultant rupture thereof and failure of the accumulator and without formation of sharp folds which may also cause rupture of the bladder. Furthermore, a large rate of flow at high velocity will be provided from such accumulator so that it may perform its intended functions.
  • a pressure vessel comprising an elongated container, an elongated deformable bladder in said container of volume substantially conforming to that of said container when the bladder is expanded, said bladder having a mouth at one end and a valve member at its other end axially aligned with said mouth, said container having axially aligned ports defining a gas and oil port respectively, means securely clamping said bladder mouth with respect to said container adjacent said gas port, a guide tube extending axially into said bladder a portion of the length thereof and rigidly secured at one end with respect to said gas port, means to provide flow of gas through said guide tube into the bladder, a substantially rustoconical grommet encompassing said tube adjacent its secured end and in juxtaposition to the bladder adjacent its mouth, said grommet extending into said bladder with the larger diameter end of the grommet adjacent the mouth of the bladder, the configuration of said grommet reducing the angle of fold of the bladder adjacent its mouth and entrapping air at such region upon compression of the bladder thereby preventing tearing of the mouth of the bladder from
  • the means to provide ow of gas through said first guide tube into the bladder comprises a plurality of longitudinally spaced openings through said first guide tube, the end of said second tube being movable into close proximity to the inner end of said grommet when the bladder is compressed, all of said openings through said first guide tube being closed by said second guide tube when the bladder is compressed.
  • valve member comprises a substantially frusto-conical body portion having a top wall rigid therewith, said valve member being integral with the closed end of the bladder axially thereof, said second guide tube being rigidly secured with respect to the top wall of said body portion.
  • valve member has an axial opening in said top wall and an elongated stud extends through said opening and is rigidly connected at one end to said top wall, said stud extending axially into said bladder, said second tube encompassing said stud ⁇ at one end and being secured thereto.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
US632028A 1967-04-19 1967-04-19 Pressure vessel Expired - Lifetime US3433268A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63202867A 1967-04-19 1967-04-19

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US3433268A true US3433268A (en) 1969-03-18

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US632028A Expired - Lifetime US3433268A (en) 1967-04-19 1967-04-19 Pressure vessel

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US (1) US3433268A (da)
DE (1) DE1750282B2 (da)
DK (1) DK127076B (da)
FR (1) FR1556755A (da)
GB (1) GB1222277A (da)
SE (1) SE339148B (da)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593747A (en) * 1968-09-17 1971-07-20 Jacques H Mercier Pressure accumulator
US3794078A (en) * 1972-03-15 1974-02-26 J Mercier Pressure vessel
US3961646A (en) * 1974-10-01 1976-06-08 Greer Hydraulics, Inc. Pressure accumulator
US4099545A (en) * 1976-05-19 1978-07-11 Greer Hydraulics, Inc. Large port pressure accumulator
US4134429A (en) * 1977-06-15 1979-01-16 Greer Hydraulics, Inc. Hydraulic accumulator having an improved oil port seal
US4182377A (en) * 1978-12-04 1980-01-08 Greer Hydraulics, Inc. Low cost accumulator device
US4243073A (en) * 1979-03-02 1981-01-06 Hugley Dale G Surge stabilizer
US20050040253A1 (en) * 2003-08-21 2005-02-24 Thornton David L. Pressurized accumulator tank for flowable materials
US20140224543A1 (en) * 2013-02-13 2014-08-14 Nabors Drilling USA Side Saddle Substructure
US20150337868A1 (en) * 2014-05-23 2015-11-26 Advics Co., Ltd. Hydraulic damper
USD797169S1 (en) * 2015-08-08 2017-09-12 Abduz Zahid Pulsation dampener bladder
US10094137B2 (en) 2013-02-13 2018-10-09 Nabors Drilling Technologies Usa, Inc. Slingshot side saddle substructure
US10214970B1 (en) 2018-06-12 2019-02-26 Nabors Drilling Technologies Usa, Inc. Post and non-elongated substructure drilling rig
US10214936B2 (en) 2016-06-07 2019-02-26 Nabors Drilling Technologies Usa, Inc. Side saddle slingshot drilling rig
US10280692B2 (en) 2013-02-13 2019-05-07 Nabors Drilling Technologies Usa, Inc. Slingshot side saddle substructure
US10428592B2 (en) 2017-01-16 2019-10-01 Nabors Drilling Technologies Usa, Inc. Rig layout system
US10487592B1 (en) 2018-05-03 2019-11-26 Nabors Drilling Technologies Usa, Inc. Multi-direction traversable drilling rig
US10584541B2 (en) 2016-07-28 2020-03-10 Nabors Drilling Technologies Usa, Inc. Pipe handling apparatus
US10648240B2 (en) 2016-07-13 2020-05-12 Nabors Drilling Technologies Usa, Inc. Mast and substructure
US10704337B2 (en) 2016-11-07 2020-07-07 Nabors Drilling Technologies Usa, Inc. Side-saddle cantilever mast
US10837238B2 (en) 2018-07-19 2020-11-17 Nabors Drilling Technologies Usa, Inc. Side saddle slingshot continuous motion rig
US11873685B2 (en) 2020-09-01 2024-01-16 Nabors Drilling Technologies Usa, Inc. Side saddle traversable drilling rig
US12054993B2 (en) 2021-03-16 2024-08-06 Nabors Drilling Technologies Usa, Inc. Side saddle rig design with retractable top drive

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DE1145914B (de) * 1960-07-02 1963-03-21 Agfa Ag Justieranordnung fuer eine fotografische Kamera mit einer Belichtungsregelvorrichtung
GB1458745A (en) * 1974-03-29 1976-12-15 Fawcett Eng Ltd Pressure vessels production of gudol powders
DD120620A1 (da) * 1975-07-11 1976-06-20
JPS5842801A (ja) * 1981-09-08 1983-03-12 ブイエスアイ・コ−ポレ−シヨン 油圧アキユムレ−タ装置
CN112112845B (zh) * 2020-10-10 2022-06-28 浙江奥莱尔液压有限公司 一种胶囊储能器

Citations (9)

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Publication number Priority date Publication date Assignee Title
US1875732A (en) * 1929-09-03 1932-09-06 British Insulated Cables Ltd Sealing device for use with electric cables and other apparatus
US2317395A (en) * 1938-05-31 1943-04-27 Mercier Jean Deformable or elastic accumulator
US2721580A (en) * 1950-11-06 1955-10-25 Greer Hydraulics Inc Bladder type pressure accumulator
US3028881A (en) * 1960-11-17 1962-04-10 Stewart And Stevenson Distribu Pressure accumulator apparatus
US3066700A (en) * 1958-12-16 1962-12-04 Mercier Jean Resiliently controlled valve
US3099189A (en) * 1959-09-16 1963-07-30 Stop Soc Deformable diaphragm apparatus
US3138176A (en) * 1955-03-14 1964-06-23 Mercier Jean Pressure device
US3319420A (en) * 1965-07-20 1967-05-16 Olaer Patent Co Pressure vessel
US3351097A (en) * 1964-07-27 1967-11-07 Bell Aerospace Corp Hydraulic reservoir

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1875732A (en) * 1929-09-03 1932-09-06 British Insulated Cables Ltd Sealing device for use with electric cables and other apparatus
US2317395A (en) * 1938-05-31 1943-04-27 Mercier Jean Deformable or elastic accumulator
US2721580A (en) * 1950-11-06 1955-10-25 Greer Hydraulics Inc Bladder type pressure accumulator
US3138176A (en) * 1955-03-14 1964-06-23 Mercier Jean Pressure device
US3066700A (en) * 1958-12-16 1962-12-04 Mercier Jean Resiliently controlled valve
US3099189A (en) * 1959-09-16 1963-07-30 Stop Soc Deformable diaphragm apparatus
US3028881A (en) * 1960-11-17 1962-04-10 Stewart And Stevenson Distribu Pressure accumulator apparatus
US3351097A (en) * 1964-07-27 1967-11-07 Bell Aerospace Corp Hydraulic reservoir
US3319420A (en) * 1965-07-20 1967-05-16 Olaer Patent Co Pressure vessel

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593747A (en) * 1968-09-17 1971-07-20 Jacques H Mercier Pressure accumulator
US3794078A (en) * 1972-03-15 1974-02-26 J Mercier Pressure vessel
US3961646A (en) * 1974-10-01 1976-06-08 Greer Hydraulics, Inc. Pressure accumulator
US4099545A (en) * 1976-05-19 1978-07-11 Greer Hydraulics, Inc. Large port pressure accumulator
US4134429A (en) * 1977-06-15 1979-01-16 Greer Hydraulics, Inc. Hydraulic accumulator having an improved oil port seal
US4182377A (en) * 1978-12-04 1980-01-08 Greer Hydraulics, Inc. Low cost accumulator device
US4243073A (en) * 1979-03-02 1981-01-06 Hugley Dale G Surge stabilizer
US20050040253A1 (en) * 2003-08-21 2005-02-24 Thornton David L. Pressurized accumulator tank for flowable materials
US10094137B2 (en) 2013-02-13 2018-10-09 Nabors Drilling Technologies Usa, Inc. Slingshot side saddle substructure
US10280692B2 (en) 2013-02-13 2019-05-07 Nabors Drilling Technologies Usa, Inc. Slingshot side saddle substructure
US10407938B2 (en) 2013-02-13 2019-09-10 Nabors Drilling Technologies Usa, Inc. Slingshot side saddle substructure
US10221631B2 (en) 2013-02-13 2019-03-05 Nabors Drilling Technologies Usa, Inc. Side saddle substructure
US9810027B2 (en) * 2013-02-13 2017-11-07 Nabors Drilling Usa, Lp Side saddle substructure
US10094176B2 (en) 2013-02-13 2018-10-09 Nabors Drilling Technologies Usa, Inc. Side saddle substructure
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Also Published As

Publication number Publication date
DK127076B (da) 1973-09-17
SE339148B (da) 1971-09-27
DE1750282A1 (de) 1971-01-21
FR1556755A (da) 1969-02-07
GB1222277A (en) 1971-02-10
DE1750282B2 (de) 1977-06-16

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