US3477473A - Diaphragm-type hydraulic accumulators - Google Patents

Diaphragm-type hydraulic accumulators Download PDF

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Publication number
US3477473A
US3477473A US646842A US3477473DA US3477473A US 3477473 A US3477473 A US 3477473A US 646842 A US646842 A US 646842A US 3477473D A US3477473D A US 3477473DA US 3477473 A US3477473 A US 3477473A
Authority
US
United States
Prior art keywords
diaphragm
edge
accumulator
casing
plate
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
US646842A
Other languages
English (en)
Inventor
Edmond Henry-Biabaud
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.)
Automobiles Citroen SA
Original Assignee
Andre Citroen 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 Andre Citroen SA filed Critical Andre Citroen SA
Application granted granted Critical
Publication of US3477473A publication Critical patent/US3477473A/en
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
    • F15B1/16—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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/08—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall
    • F16F9/082—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall characterised by the hydropneumatic accumulator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/40—Constructional features of dampers and/or springs
    • B60G2206/42—Springs
    • B60G2206/422—Accumulators for hydropneumatic springs
    • B60G2206/4222—Accumulators for hydropneumatic springs with a flexible separating wall; Membrane construction
    • 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
    • F15B2201/3151—Accumulator separating means having flexible separating means the flexible separating means being diaphragms or membranes
    • 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
    • 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

  • the edge of the partition-forming diaphragm is not only clamped by the pulling elfort of said plate during the mounting but also compressed by the internal pressure during the inflation and by the pressure prevailing in the accumulator when the latter is in actual service.
  • This last-named pressure tends to urge the marginal portion of the diaphragm by causing the distortion of the elastic plate.
  • the clamping force is not constant but subordinate to the internal pressure
  • the accumulator is particularly capable of withstanding a wide range of pressures, even of pulsatory character.
  • FIGURE 1 illustrates diagrammatically a diaphragmtype hydraulic accumulator constructed according to the teachings of this invention.
  • FIG. 2 is a partial cross-section showing a modification.
  • the reference numeral 1 designates the casing of a hydraulic accumulator provided with a connecting union 2 and divided by a diaphragm 5 into two compartments 3 and 4 one containing a. gaseous medium under pressure and the other a liquid.
  • This diaphragm 5 made of suitable elastomer comprises a lip 6 and a lateral portion 7 contacting the inner wall of the accumulator casing 1.
  • the assembly comprising the accumulator casing 1, the connecting union 2 and the diaphragm 5 is advantageously of revolution about an axis 8; however, it will readily occur to anyone conversant with the art that the accumulator casing 1 may consist of two half-shells assembled for example by screwing, according to manufacturing requirements.
  • This plate 10 comprises means for pressing the diaphragm against the casing, for example in the form of shoulders such as 19 and 22 (see FIG. 1) or a rounded edge 23 engaging a corresponding groove 24 formed in the diaphragm (FIG. 2).
  • the pressure prevailing in the space 12 and on the diaphragm edge 6 is constantly equal to the pressure of the gaseous medium in compartment 3 and to that prevailing in the other, liquid-filled compartment 4.
  • the clamping plate '10 comprises cylindrical portions 20 and 21 which cannot be distorted by the pressure prevailing in the accumulator. These cylindrical portions clamp the edge 6 with a constant torce resulting from the tractive effort exerted by the fastening member 13, irrespective of the pressure prevailing in the accumulator 1.
  • the member 13 can be used as an inflation plug for introducing a gas into the upper compartment 3.
  • a gasket 14 seals the joint between this gas-filled compartment and the atmospheric air surrounding the accumulator.
  • Diaphragm type hydraulic accumulator according to claim 1, wherein a hole is provided in the upper part of said clamping plate for establishing communication between said free gap and said gaseous medium.
  • Diaphragm type hydraulical accumulator according to claim 1, wherein said clamping plate comprises-in its lateral part a shoulder and a cylindrical portion contacting the edge of said diaphragm in the vicinity of said shoulder.
  • Diaphragm type hydraulic accumulator according to claim 1, wherein said diaphragm has a groove and said clamping plate comprises a rounded edge engaged in said groove and a cylindrical portion contacting the edge of said diaphragm.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Fluid-Damping Devices (AREA)
US646842A 1966-07-21 1967-06-19 Diaphragm-type hydraulic accumulators Expired - Lifetime US3477473A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR70313A FR1493719A (fr) 1966-07-21 1966-07-21 Accumulateur hydraulique à membrane

Publications (1)

Publication Number Publication Date
US3477473A true US3477473A (en) 1969-11-11

Family

ID=8613787

Family Applications (1)

Application Number Title Priority Date Filing Date
US646842A Expired - Lifetime US3477473A (en) 1966-07-21 1967-06-19 Diaphragm-type hydraulic accumulators

Country Status (9)

Country Link
US (1) US3477473A (fr)
BE (1) BE700009A (fr)
BR (1) BR6791084D0 (fr)
ES (1) ES342701A1 (fr)
FR (1) FR1493719A (fr)
GB (1) GB1169283A (fr)
LU (1) LU54088A1 (fr)
NL (1) NL142223B (fr)
SE (1) SE336508B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612105A (en) * 1969-05-12 1971-10-12 Harold W Martin Pressure peak suppressors
US3623512A (en) * 1968-11-29 1971-11-30 Bosch Gmbh Robert Pressure reservoir
US3907000A (en) * 1974-04-25 1975-09-23 Teledyne Sprague Eng Hydro-pneumatic flexible bladder accumulator
US3960178A (en) * 1974-09-25 1976-06-01 Mercier Jacques H Pressure vessel
FR2429915A1 (fr) * 1978-06-28 1980-01-25 Mercier J Reservoir de pression
US4234017A (en) * 1979-11-05 1980-11-18 Normand Trust Accumulator device or the like
US4723577A (en) * 1986-10-22 1988-02-09 Sundstrand Corporation Thermal expansion reservoir
US5894861A (en) * 1998-04-23 1999-04-20 Siemens Automotive Corporation Damper dry ice charge
US5992832A (en) * 1995-11-30 1999-11-30 Automobiles Peugeot Sphere, in particular a pneumatic sphere, for example for automotive hydropneumatic suspensions
US6901964B2 (en) 2001-03-30 2005-06-07 Saturn Electronics & Engineering, Inc. Vehicle fuel pulse damper
CN104989910A (zh) * 2015-06-30 2015-10-21 天津市远大阀门有限公司 橡胶式管道缓冲器

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD120620A1 (fr) * 1975-07-11 1976-06-20
DE2810882C3 (de) * 1978-03-13 1980-09-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Druckwindkessel für eine druckgeregelte Wasserversorgungsanlage
FR2588324A1 (fr) * 1985-10-08 1987-04-10 Lizarte Sa Accumulateur hydropneumatique perfectionne
FR2602283B1 (fr) * 1986-08-04 1988-10-21 Peugeot Procede de fabrication d'un accumulateur hydropneumatique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676605A (en) * 1950-11-14 1954-04-27 Meredew George Charles Hydraulic accumulator and like pressure storage vessel
CA597550A (en) * 1960-05-10 Mercier Jean Pressure vessels
US3038501A (en) * 1957-12-05 1962-06-12 Greer Hydraulies Inc Pressure vessel
US3195578A (en) * 1959-04-17 1965-07-20 Mercier Jean Pressure accumulator
US3208646A (en) * 1964-08-17 1965-09-28 Harold B Wessenger Hydropneumatic accumulator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA597550A (en) * 1960-05-10 Mercier Jean Pressure vessels
US2676605A (en) * 1950-11-14 1954-04-27 Meredew George Charles Hydraulic accumulator and like pressure storage vessel
US3038501A (en) * 1957-12-05 1962-06-12 Greer Hydraulies Inc Pressure vessel
US3195578A (en) * 1959-04-17 1965-07-20 Mercier Jean Pressure accumulator
US3208646A (en) * 1964-08-17 1965-09-28 Harold B Wessenger Hydropneumatic accumulator

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3623512A (en) * 1968-11-29 1971-11-30 Bosch Gmbh Robert Pressure reservoir
US3612105A (en) * 1969-05-12 1971-10-12 Harold W Martin Pressure peak suppressors
US3907000A (en) * 1974-04-25 1975-09-23 Teledyne Sprague Eng Hydro-pneumatic flexible bladder accumulator
US3960178A (en) * 1974-09-25 1976-06-01 Mercier Jacques H Pressure vessel
FR2429915A1 (fr) * 1978-06-28 1980-01-25 Mercier J Reservoir de pression
US4234017A (en) * 1979-11-05 1980-11-18 Normand Trust Accumulator device or the like
US4723577A (en) * 1986-10-22 1988-02-09 Sundstrand Corporation Thermal expansion reservoir
US5992832A (en) * 1995-11-30 1999-11-30 Automobiles Peugeot Sphere, in particular a pneumatic sphere, for example for automotive hydropneumatic suspensions
US5894861A (en) * 1998-04-23 1999-04-20 Siemens Automotive Corporation Damper dry ice charge
US6901964B2 (en) 2001-03-30 2005-06-07 Saturn Electronics & Engineering, Inc. Vehicle fuel pulse damper
CN104989910A (zh) * 2015-06-30 2015-10-21 天津市远大阀门有限公司 橡胶式管道缓冲器

Also Published As

Publication number Publication date
ES342701A1 (es) 1968-08-16
DE1650172B2 (de) 1973-09-20
LU54088A1 (fr) 1967-09-12
BE700009A (fr) 1967-11-16
DE1650172A1 (de) 1972-03-09
NL6709960A (fr) 1968-01-22
FR1493719A (fr) 1967-09-01
BR6791084D0 (pt) 1973-07-10
SE336508B (fr) 1971-07-05
NL142223B (nl) 1974-05-15
GB1169283A (en) 1969-11-05

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