US2540676A - Accumulator - Google Patents

Accumulator Download PDF

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Publication number
US2540676A
US2540676A US744140A US74414047A US2540676A US 2540676 A US2540676 A US 2540676A US 744140 A US744140 A US 744140A US 74414047 A US74414047 A US 74414047A US 2540676 A US2540676 A US 2540676A
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Prior art keywords
casing
pressure
bags
fluid
slot
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US744140A
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Edward D Johnson
Carl F Wall
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Wagner Electric Corp
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Wagner Electric Corp
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/06—Applications or arrangements of reservoirs
    • 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
    • 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
    • F15B2201/32—Accumulator separating means having multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof
    • 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
    • F15B2201/41—Liquid ports
    • F15B2201/413—Liquid ports having multiple liquid 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
    • F15B2201/415—Gas ports

Definitions

  • Qur invention l relates to .devices commonly -re- .ferledto as accumulators for storing fluidun'- der pressure for the 'operation of vehicle brakes and; other' devicesA and:4 invY its more Vspecific aspects midi-rented to: ⁇ an accumulator embodying ⁇ a plu- .ral'ityf of. Aloa-gs containing a, compressible medium, suclrasair ⁇ or aninert gas, and b-yv means of which .pressurezis:maintained on vthe ,operating fluid in the accumulator.
  • Onezof-the objects of our invention istozsoconstruct :the bags of-the accumulator and associate them ⁇ with/the containing walls of the' accumulator.-.unit, thatuwhen: fluid vto'be stored under pressures forced into ⁇ the unit, a uniform .invagination ofthe bagswill oscura-nd .there will be no entrapment of uidlbetween a portion of the wallsjofthe bags and awall of the containing unit eitherduring. the storing or :discharging ofwthe operating fluid.
  • Another object is lto provide an: accumulator unit ⁇ embodying rtwo bags or bladders, ythe closed ends ofrvwhi'ch, when the' bladders arezcharged with the compressible medium 'and the unit is not charged with operating fluid, engage each other along approximately the centerline of theaccumulator unit and at which line a narrow circumferential slot is provided'for the. delivery and discharge of the operating fluid.
  • V.the construction'fj'ust indicated will be more fully pointed out in. the' following description.
  • the drawing shows a vertical sectional view of an accumulatorxunit whichfcomprises a cylindricalY casing. consisting of two identical. sections ⁇ I and 2 and a ring 3 which ring securessaid sections together with their adjacent ends 4 spaced apart whereby a vcircum-ferential narrow-slot 4 is formed throughwhich operating pressure fluid mayrfbe forced into;I the casing lfrom the circumferential groove 'formed on Athe innerface of the-connecting ring 3.
  • conduit 6 for supplying operating pressure uid is placed in communication with groove and slot 4.
  • each casing section is positioned a bag or bladder 'l made of flexible material having a normal shape as shown in the drawing except that the normal diameter of each bag is slightly larger than the interior diameter of the casing section in which it is contained whereby when installed in position the parts of the bag bearing on the wall of the container are maintained in slight pressure engagement therewith by reason of the resilience of the bag material.
  • the outer ends of the bags are each provided with a closure located in this reduced portion.
  • Each closure comprises a disc 8 and a plate 9 between the parts oi which ythe bead- I Garoundithe bagropeningris. clamped.
  • a pressure accumulator comprising a casing having oppositely disposed openings, two flexible bags in the casing for receiving gas under pressure, each bag having an inlet end secured in pressure-tight relation with the inner surface of the casing at one of said openings, the two bags being shaped soas to substantially 1111 the space in the casing when under zero pressure conditions, and means for introducing pressure uid into the casing at a point between said openings.
  • a pressure accumulator comprising a casing and two fiexible bags therein for receiving a compressible medium, each of the bags having an opening therein through which fluid passes when entering or leaving the bags, said bags having their major portions lying in Contact with the inner surface of the casing and having bottom walls positioned adjacent each other when the ycasing contains no charge of pressure fluid, and means including a circumferential slot in the casing through which to introduce pressure uid into said casing at a point adjacent said last mentioned position of said bottom walls.
  • a pressure accumulator comprising a casing and two bags of resilient material therein for receiving a compressible medium, said bars having major portions of their surfaces in pressure contact with the interior surface. of the .casing and having bottom walls facing each other and located approximately at the center of the casing when the casing contains no charge of pressure fluid, means for charging the bags at equal pressures with a compressible medium, and means including a circumferentially disposed slot in said casing through which to introduce pressure fluid into said casing at its central portion.
  • a pressure accumulator comprising a casing having a circumferentially disposed slot through which to introduce pressure fluid into said casing at its central portion, two bags made of a resilient materialin said casing for receiving a pressure fluid and having bottom walls, a fluid under pressure to be introduced into said bags from an external source, said bags under conditions of zero pressure having major portions of their surfaces in pressure Contact with the interior surface of the casing and having their bottom walls facing each other and located approximately at the center of the casing when the casing contains no pressure fluid, a second pressure fluid to be introduced in said casing through said slot, and at least one of said pressure fluids being capable of occupying a space inversely proportional in volume to the pressure applied thereto.
  • a pressure accumulator comprising a pair of cylindrical members, each member having openings at each end thereof, means for connecting one end of one member to an end of the other member to form a casing provided with a circumferential slot between the members and so that the casing is open at its opposite ends, two flexible bags in said casing each having an open end for receiving a compressible medium, each of said open ends being secured in pressure-tight relation with the inner surface of the casing at one of said openings, and means for introducing pressure uid into the casing through said slot.
  • a pressure accumulator comprising a pair of coaxially oriented cylindrical members, each member having openings at each end thereof, a ring provided with an internal circumscribing groove and fitted around and joined in pressure-tight relationship to the adjacently disposed ends of said members so as to form a single open ended casing and assembled so so as to provide a circumferential slot between the cylindrical members, said slot aligned with said groove to p-lace same in communication with the interior of said casing, two ii'exible bags in said casing for receiving a fluid medium and each having an open end and a bottom Wall, each of said ends being secured in pressure-tight relation with the inner surface of the casing at one of its openings and with the bottom walls adjacent to each other and in substantial alignment with said slot, and means for delivering pressure uid into said casing through said slot to compress the fluid medium in said bags.
  • a pressure accumulator comprising a casing of circular cross-section having openings at opposite ends and provided with a narrow circumferential slot between its ends and formed in the inner .surface of the casing, two flexible bags in said casing each having an open end for receiving a compressible medium, each of said open ends being secured in pressure-tight relation with the inner surface of the casing at one of said openings; and means for introducing pressure fluid into the casing through said slot.
  • a pressure accumulator comprising a casing of circular cross-section having openings at opposite ends and provided with a narrow internal circumferential slot, two iiexible bags in saidzcasing each having an open end for receiving a compressible medium, each of said open ends being secured in pressure-tight relation with the inner surface of said casing at said openings, means circumscrib-ing said casing so constructed and arranged with respect to said casing as to form a circumferential fluid passageway in communication with said narrow circumferential slot; and means for introducing pressure fluid into said passageway.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Description

Feb. 6, 1951 E. D. JoHNsoN ETAL ACCUMULATOR Filed April 26, 1947 CARL F. WALL BY ATTORNEY.
Patented Feb. 6', Y11951 `Wall, .Mariolav Ill.,-assignors toaWagner Electric Corporation,` St. Louis, Mo.,la-. corporation .of
' Delaware Application April 26, 19427,- Serial No. 744,140
(Cl. 13S- 30) SfClaims.
Qur invention lrelates to .devices commonly -re- .ferledto as accumulators for storing fluidun'- der pressure for the 'operation of vehicle brakes and; other' devicesA and:4 invY its more Vspecific aspects midi-rented to:` an accumulator embodying` a plu- .ral'ityf of. Aloa-gs containing a, compressible medium, suclrasair `or aninert gas, and b-yv means of which .pressurezis:maintained on vthe ,operating fluid in the accumulator.
.Onezof-the objects of our invention istozsoconstruct :the bags of-the accumulator and associate them` with/the containing walls of the' accumulator.-.unit, thatuwhen: fluid vto'be stored under pressures forced into `the unit, a uniform .invagination ofthe bagswill oscura-nd .there will be no entrapment of uidlbetween a portion of the wallsjofthe bags and awall of the containing unit eitherduring. the storing or :discharging ofwthe operating fluid.
Another object, is lto provide an: accumulator unit `embodying rtwo bags or bladders, ythe closed ends ofrvwhi'ch, when the' bladders arezcharged with the compressible medium 'and the unit is not charged with operating fluid, engage each other along approximately the centerline of theaccumulator unit and at which line a narrow circumferential slot is provided'for the. delivery and discharge of the operating fluid. Theadvantages of V.the construction'fj'ust indicated will be more fully pointed out in. the' following description.
The drawing shows a vertical sectional view of an accumulatorxunit whichfcomprises a cylindricalY casing. consisting of two identical. sections` I and 2 and a ring 3 which ring securessaid sections together with their adjacent ends 4 spaced apart whereby a vcircum-ferential narrow-slot 4 is formed throughwhich operating pressure fluid mayrfbe forced into;I the casing lfrom the circumferential groove 'formed on Athe innerface of the-connecting ring 3. By means of an inlet fitting, conduit 6 for supplying operating pressure uid is placed in communication with groove and slot 4.
In each casing section is positioned a bag or bladder 'l made of flexible material having a normal shape as shown in the drawing except that the normal diameter of each bag is slightly larger than the interior diameter of the casing section in which it is contained whereby when installed in position the parts of the bag bearing on the wall of the container are maintained in slight pressure engagement therewith by reason of the resilience of the bag material. The outer ends of the bags are each provided with a closure located in this reduced portion. Each closure comprises a disc 8 and a plate 9 between the parts oi which ythe bead- I Garoundithe bagropeningris. clamped.
Thesel :closure elementsearel clamped together-by '.ttin'gs -i 2 andv are :retained inhpositifonv by caps 13.
Arfluid seal vlltiformsra huid-.tight lc'on'nectiorinbetween-.the periplieryzof plate eland-theinnerwall cf the end ofthe 'casingsection.
.Thefttings' l'linvv the' bag closures .are.connected. 'together by cond-uitg. l lll and. d'5. through an inlet valve' it". fo'rlthe .compressible flu-.id Ine.- dium` to bev supplied to the interior oil the-mags, the bag vchambers'. being interconnected-.-fthrough :the: conduits so .that equal; pressures-lare developed'in the :bag-*sii when charging Vthem;.thro'ugh Ivalve it., The norma'l positionioffthexclosedends "or loottom'wallsk of `the bags;v whenI no operating fluidiris contained: in". the acoumulatorf'isflthat shown in the drawing. In other WOrdathefmTeeting linexof. the outerrsurfaces oi these `closed ends is normally substantially .inx alignment withl slot 4. "This vslot is so narrow. that underrnaximum pressure of the compressible fluid. medium con- .tainedinthebags,V thefbagi material will notice extruded into th'exslot even though. a portion thereof. should. at any time lie" acrossa partfof the 'slot.
When"operating fluid kis forced into the: accu` mulator through vconduit 6, .circumferential groove 5,.'and` slot 4, the air or other gaseous contentfof the bags is compressed, the `bottorn'wal-ls of the? .bags beingflexedasi indicated in thedraw-- ing.
By the useof two bagsin lieuof a singlebag in an accumulator unit .of a 4particular capacity relatively small peripheral areas ofA each bag-.will be=withdrawn from contactwith. the casing walls when lthel unit is fully charged with operating iiuid and,v therefore, .the likelihood of ventrapment of fluid:in.a localized area between the bag@ and container wall is very g-reatly decreased; and in a two bag structure with a peripheral supply and discharge slot for the operating fluid located at the center of the unit no special means is required to prevent entire blocking of the discharge for the operating uid by the bag material under any operative condition.
Having fully described our invention, that which we claim as novel and desire to protect by Letters Patent of the United States is:
l. A pressure accumulator comprising a casing having oppositely disposed openings, two flexible bags in the casing for receiving gas under pressure, each bag having an inlet end secured in pressure-tight relation with the inner surface of the casing at one of said openings, the two bags being shaped soas to substantially 1111 the space in the casing when under zero pressure conditions, and means for introducing pressure uid into the casing at a point between said openings.
2. A pressure accumulator comprising a casing and two fiexible bags therein for receiving a compressible medium, each of the bags having an opening therein through which fluid passes when entering or leaving the bags, said bags having their major portions lying in Contact with the inner surface of the casing and having bottom walls positioned adjacent each other when the ycasing contains no charge of pressure fluid, and means including a circumferential slot in the casing through which to introduce pressure uid into said casing at a point adjacent said last mentioned position of said bottom walls.
3. A pressure accumulator comprising a casing and two bags of resilient material therein for receiving a compressible medium, said bars having major portions of their surfaces in pressure contact with the interior surface. of the .casing and having bottom walls facing each other and located approximately at the center of the casing when the casing contains no charge of pressure fluid, means for charging the bags at equal pressures with a compressible medium, and means including a circumferentially disposed slot in said casing through which to introduce pressure fluid into said casing at its central portion.
4. A pressure accumulator comprising a casing having a circumferentially disposed slot through which to introduce pressure fluid into said casing at its central portion, two bags made of a resilient materialin said casing for receiving a pressure fluid and having bottom walls, a fluid under pressure to be introduced into said bags from an external source, said bags under conditions of zero pressure having major portions of their surfaces in pressure Contact with the interior surface of the casing and having their bottom walls facing each other and located approximately at the center of the casing when the casing contains no pressure fluid, a second pressure fluid to be introduced in said casing through said slot, and at least one of said pressure fluids being capable of occupying a space inversely proportional in volume to the pressure applied thereto.
5. A pressure accumulator comprising a pair of cylindrical members, each member having openings at each end thereof, means for connecting one end of one member to an end of the other member to form a casing provided with a circumferential slot between the members and so that the casing is open at its opposite ends, two flexible bags in said casing each having an open end for receiving a compressible medium, each of said open ends being secured in pressure-tight relation with the inner surface of the casing at one of said openings, and means for introducing pressure uid into the casing through said slot.
6. A pressure accumulator comprising a pair of coaxially oriented cylindrical members, each member having openings at each end thereof, a ring provided with an internal circumscribing groove and fitted around and joined in pressure-tight relationship to the adjacently disposed ends of said members so as to form a single open ended casing and assembled so so as to provide a circumferential slot between the cylindrical members, said slot aligned with said groove to p-lace same in communication with the interior of said casing, two ii'exible bags in said casing for receiving a fluid medium and each having an open end and a bottom Wall, each of said ends being secured in pressure-tight relation with the inner surface of the casing at one of its openings and with the bottom walls adjacent to each other and in substantial alignment with said slot, and means for delivering pressure uid into said casing through said slot to compress the fluid medium in said bags.
'7. A pressure accumulator comprising a casing of circular cross-section having openings at opposite ends and provided with a narrow circumferential slot between its ends and formed in the inner .surface of the casing, two flexible bags in said casing each having an open end for receiving a compressible medium, each of said open ends being secured in pressure-tight relation with the inner surface of the casing at one of said openings; and means for introducing pressure fluid into the casing through said slot.
8. A pressure accumulator comprising a casing of circular cross-section having openings at opposite ends and provided with a narrow internal circumferential slot, two iiexible bags in saidzcasing each having an open end for receiving a compressible medium, each of said open ends being secured in pressure-tight relation with the inner surface of said casing at said openings, means circumscrib-ing said casing so constructed and arranged with respect to said casing as to form a circumferential fluid passageway in communication with said narrow circumferential slot; and means for introducing pressure fluid into said passageway.
. EDWARD D. JOHNSON.
'CARL F. WALL.
REFERENCES CITED The following references are of record in the file of this patent:Y
UNITED STATES PATENTS Number Name Date 2,283,180 -Ellinvvood Aug. 21, 1945 2,390,319 Overbeke Dec. 4, 1945
US744140A 1947-04-26 1947-04-26 Accumulator Expired - Lifetime US2540676A (en)

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2638932A (en) * 1948-04-10 1953-05-19 George E Failing Supply Compan Pressure equalizer
US2786488A (en) * 1954-02-03 1957-03-26 Jean Mercier Pressure device
US2805684A (en) * 1954-06-23 1957-09-10 Ideal Roller And Mfg Company Accumulator
US2833310A (en) * 1953-11-04 1958-05-06 Chicago Pneumatic Tool Co Auxiliary reservoir for pumps
US3035613A (en) * 1958-08-08 1962-05-22 Chiksan Co Pulsation dampener
US3075576A (en) * 1959-07-30 1963-01-29 Herbert Danuta Improvements in reservoirs for internal combustion engines
DE1223637B (en) * 1959-11-13 1966-08-25 Greer Hydraulics Inc Pressure vessel with flexible partition
US3351098A (en) * 1964-11-30 1967-11-07 Lucas Industries Ltd Hydraulic accumulator
FR2156489A1 (en) * 1971-10-22 1973-06-01 Lucas Industries Ltd
US3802465A (en) * 1971-12-13 1974-04-09 Dynetics Accumulator
US4312382A (en) * 1979-03-14 1982-01-26 Firma J. Wagner Gmbh Pressure peak compensator for pulsating streams of liquid
WO1984000797A1 (en) * 1982-08-09 1984-03-01 Rast Pty Ltd W Method of and means for absorbing pressure shocks
US4697674A (en) * 1984-06-25 1987-10-06 Industrie Pirelli S.P.A Oleoelastic energy accumulator
WO1994001680A1 (en) * 1992-07-09 1994-01-20 Hydac Technology Gmbh Multi-diaphragm store
EP1496267A1 (en) * 2003-07-11 2005-01-12 Hydro Leduc Bladder-type accumulator with several bladders
WO2012134338A1 (en) * 2011-03-28 2012-10-04 Stroganov Alexander Anatolyevich Hydraulic shock absorber
ITRM20110456A1 (en) * 2011-09-02 2013-03-03 Aero Sekur S P A SAFETY SYSTEM FOR A PNEUMATIC ACCUMULATOR AND USING SYSTEM SUCH A SYSTEM.
US20200011384A1 (en) * 2017-03-21 2020-01-09 Eagle Industry Co., Ltd. Fluid equipment
US11359648B2 (en) * 2019-05-31 2022-06-14 Tenneco Automotive Operating Company Inc. Accumulator with flexible inflatable container
US20230096845A1 (en) * 2021-09-30 2023-03-30 Deere & Company Dual gas pressure accumulator system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2283180A (en) * 1941-01-02 1942-05-19 James A Buchanan Accelerometer
US2390319A (en) * 1943-12-28 1945-12-04 Simmonds Aerocessories Inc Pressure vessel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2283180A (en) * 1941-01-02 1942-05-19 James A Buchanan Accelerometer
US2390319A (en) * 1943-12-28 1945-12-04 Simmonds Aerocessories Inc Pressure vessel

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2638932A (en) * 1948-04-10 1953-05-19 George E Failing Supply Compan Pressure equalizer
US2833310A (en) * 1953-11-04 1958-05-06 Chicago Pneumatic Tool Co Auxiliary reservoir for pumps
US2786488A (en) * 1954-02-03 1957-03-26 Jean Mercier Pressure device
US2805684A (en) * 1954-06-23 1957-09-10 Ideal Roller And Mfg Company Accumulator
US3035613A (en) * 1958-08-08 1962-05-22 Chiksan Co Pulsation dampener
US3075576A (en) * 1959-07-30 1963-01-29 Herbert Danuta Improvements in reservoirs for internal combustion engines
DE1223637B (en) * 1959-11-13 1966-08-25 Greer Hydraulics Inc Pressure vessel with flexible partition
US3351098A (en) * 1964-11-30 1967-11-07 Lucas Industries Ltd Hydraulic accumulator
FR2156489A1 (en) * 1971-10-22 1973-06-01 Lucas Industries Ltd
US3802465A (en) * 1971-12-13 1974-04-09 Dynetics Accumulator
US4312382A (en) * 1979-03-14 1982-01-26 Firma J. Wagner Gmbh Pressure peak compensator for pulsating streams of liquid
WO1984000797A1 (en) * 1982-08-09 1984-03-01 Rast Pty Ltd W Method of and means for absorbing pressure shocks
US4697674A (en) * 1984-06-25 1987-10-06 Industrie Pirelli S.P.A Oleoelastic energy accumulator
US5596772A (en) * 1992-07-09 1997-01-28 Hydac Technology Gmbh Toilet flushing system with multi-diaphragm storage container having three fluid receiving chambers
WO1994001680A1 (en) * 1992-07-09 1994-01-20 Hydac Technology Gmbh Multi-diaphragm store
EP1496267A1 (en) * 2003-07-11 2005-01-12 Hydro Leduc Bladder-type accumulator with several bladders
FR2857420A1 (en) * 2003-07-11 2005-01-14 Hydro Leduc IMPROVEMENTS ON HYDRAULIC ACCUMULATORS
US8944108B2 (en) 2011-03-28 2015-02-03 Alexander Anatolyevich Stroganov Hydraulic buffer
RU2467213C1 (en) * 2011-03-28 2012-11-20 Александр Анатольевич Строганов Hydraulic buffer
CN103459856A (en) * 2011-03-28 2013-12-18 亚历山大·阿纳托利耶维奇·斯特罗加诺夫 Hydraulic shock absorber
WO2012134338A1 (en) * 2011-03-28 2012-10-04 Stroganov Alexander Anatolyevich Hydraulic shock absorber
ITRM20110456A1 (en) * 2011-09-02 2013-03-03 Aero Sekur S P A SAFETY SYSTEM FOR A PNEUMATIC ACCUMULATOR AND USING SYSTEM SUCH A SYSTEM.
WO2013030857A1 (en) 2011-09-02 2013-03-07 AERO SEKUR S.p.a Security system for a pneumatic accumulator and plant using said system
US20150004013A1 (en) * 2011-09-02 2015-01-01 Giacomo Giovangrossi Security system for a pneumatic accumulator and plant using said system
US20200011384A1 (en) * 2017-03-21 2020-01-09 Eagle Industry Co., Ltd. Fluid equipment
US11035387B2 (en) * 2017-03-21 2021-06-15 Eagle Industry Co., Ltd. Fluid equipment
US11359648B2 (en) * 2019-05-31 2022-06-14 Tenneco Automotive Operating Company Inc. Accumulator with flexible inflatable container
US20230096845A1 (en) * 2021-09-30 2023-03-30 Deere & Company Dual gas pressure accumulator system
US12031556B2 (en) * 2021-09-30 2024-07-09 Deere & Company Dual gas pressure accumulator system

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