WO2011122424A1 - ダイアフラム - Google Patents

ダイアフラム Download PDF

Info

Publication number
WO2011122424A1
WO2011122424A1 PCT/JP2011/057082 JP2011057082W WO2011122424A1 WO 2011122424 A1 WO2011122424 A1 WO 2011122424A1 JP 2011057082 W JP2011057082 W JP 2011057082W WO 2011122424 A1 WO2011122424 A1 WO 2011122424A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
outer peripheral
diaphragm
peripheral flange
flange portion
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.)
Ceased
Application number
PCT/JP2011/057082
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
修二 竹下
一真 繁田
広治 青葉
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.)
Nok Corp
Advics Co Ltd
Original Assignee
Nok Corp
Advics Co Ltd
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 Nok Corp, Advics Co Ltd filed Critical Nok Corp
Priority to US13/637,877 priority Critical patent/US20130014639A1/en
Priority to CN201180016086.1A priority patent/CN102822573B/zh
Publication of WO2011122424A1 publication Critical patent/WO2011122424A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/02—Diaphragms
    • 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
    • F15B1/125—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means attached at their periphery characterised by the attachment 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
    • F15B2201/20—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
    • F15B2201/60—Assembling or methods for making accumulators
    • F15B2201/61—Assembling or methods for making separating means therefor

Definitions

  • the present invention relates to a diaphragm, and more particularly to a diaphragm suitable for use as an accumulator or the like of a vehicle hydraulic control device.
  • a diaphragm 1 made of a rubber-like elastic body which has a membrane portion 2 which is flexibly deformed and an outer peripheral flange portion 3 integrally provided on a peripheral portion of the membrane portion 2.
  • the diaphragm 1 is used, for example, as an accumulator of a hydraulic control device for a vehicle and attached to a pressure chamber 32 in a housing 31. With the action of pressure, the membrane portion 2 is flexibly deformed to change the volume of the pressure chamber 32. , And open and close the vent 33.
  • the diaphragm 1 is mounted by the outer peripheral flange 3 being sandwiched between the upper and lower housings 31A and 31B, and at this time, the membrane 2 is set as an initial movement posture.
  • the one surface 2a is in contact with the flat portion 35 of the housing 31A on the upper and lower sides of the drawing provided with the vent holes 33.
  • the outer peripheral flange portion 3 is largely compressed and deformed when mounted between the pair of housings 31A and 31B.
  • the one surface 2a of the film portion 2 may be separated from the flat portion 35 of the lower housing 31A, and in such a case, the film portion 2 is prevented from rising to be accurate. It is necessary to secure the initial movement attitude.
  • the diaphragm according to claim 1 of the present invention has a membrane portion which is flexibly deformed and an outer peripheral flange portion integrally provided on a peripheral edge portion of the membrane portion, the outer peripheral flange portion In the diaphragm held by being fitted between the pair of first housings and the second housing, the outer peripheral flange portion is one surface in the thickness direction of the diaphragm, and is in close contact with the first housing.
  • the three-dimensional shape is characterized in that a thickness direction space is formed in the thickness direction between the outer peripheral flange portion and the first housing.
  • the diaphragm of the present invention has a membrane portion which is flexibly deformed and an outer peripheral flange portion integrally provided on a peripheral edge portion of the membrane portion, and the outer peripheral flange portion is between the pair of first housing and the second housing
  • the state of having the membrane portion seated in the first housing is an initial movement posture.
  • the membrane part When a differential pressure is generated between the space and the space between the diaphragm and the second housing, the membrane part operates to move away from the first housing, and according to the configuration of claim 1, (1) A space in the thickness direction can be easily formed between the outer peripheral flange portion and the first housing simply by giving a three-dimensional shape to the pressed surface, and the first housing and the second housing of the outer peripheral flange portion can be formed by the space in the thickness direction.
  • the membrane portion Under the influence of the deformation in the state where the diaphragm is mounted between the first housing and the second housing, that is, in the initial movement posture in which the above differential pressure is not generated. Floating from the first housing can be suppressed.
  • the three-dimensional shape is an annular protrusion provided at a radial center of the first pressed surface, the outer periphery
  • the thickness direction air gap is formed radially outward of the annular projection of the first pressed surface.
  • the outer peripheral flange portion is mounted between the first housing and the second housing.
  • the outer diameter of the diaphragm is set between the outer peripheral surface of the outer peripheral flange portion and at least one of the first and second housings so as to form a radial gap in the radial direction of the diaphragm.
  • the radial air gap makes it easier to absorb deformation due to compression from the first housing and the second housing of the outer peripheral flange portion.
  • the outer peripheral flange portion is the other surface in the thickness direction of the diaphragm and the second housing It is characterized in that it has a second pressed surface to be pressed, and a three-dimensional shape including a convex portion or a recessed portion on the second pressed surface.
  • the diaphragm according to any one of the first to fourth aspects can suppress the floating of the membrane portion from the first housing.
  • the present invention has the following effects.
  • the gap in the thickness direction or the radial direction is set around the outer peripheral flange portion, and the escape place of the rubber-like elastic body at the flange deformation is secured.
  • the influence of the deformation is less likely to extend to the film portion on the inner peripheral side. Therefore, it is possible to suppress the occurrence of the floating phenomenon on the film portion, and to ensure the correct initial movement posture.
  • (A) is a half cutting sectional view in the mounting state before, and (B) is a principal part enlarged view of (A). It is a figure which shows the same diaphragm, (A) is a half cutting sectional view in the wearing state, (B) is a principal part enlarged view of (A). It is a figure which shows the diaphragm which concerns on the other Example of this invention, (A) is a half cutting sectional view in the mounting state before, and (B) is a principal part enlarged view of (A).
  • (A) is a half cutting sectional view in the wearing state
  • (B) is a principal part enlarged view of (A).
  • Sectional drawing which shows the mounting state of the diaphragm which concerns on a prior art example It is a figure which shows the diaphragm which concerns on a comparative example,
  • (A) is a half cutting sectional view in the mounting state before
  • mounting is a half cutting sectional view in the mounting state
  • (C) is a half cutting sectional view in a failure generating state
  • the diaphragm 1 according to the embodiment is formed into a disk shape by a predetermined rubber-like elastic body, and the flexible deformable membrane portion 2 and the peripheral portion of the membrane portion 2 It integrally has an annular outer peripheral flange portion (peripheral attachment portion) 3 provided.
  • the diaphragm 1 according to this embodiment is used as an accumulator of a vehicle hydraulic control apparatus that performs ABS control, ESC control, etc., and the outer peripheral flange portion 3 is between the pair of upper and lower housings 31A and 31B in the figure.
  • the pressure chamber 32 (see FIG. 2) in the housings 31A and 31B is mounted.
  • the lower housing 31A in FIG. 1 is provided with a vent 33, and the upper housing 31B is provided with a communication hole 39 communicating with, for example, the hydraulic fluid flow path of the vehicle hydraulic device.
  • the film portion 2 is formed in a flat plate shape having a uniform thickness over the entire surface (except when the thick portion 4 described later is provided), and the vent 33 is provided. It has one surface 2a facing one housing (first housing) 31A and the other surface 2b on the opposite side.
  • the outer peripheral flange portion 3 is set to a thickness larger than the membrane portion 2 and is formed into a substantially rectangular cross section, and one end face in the thickness direction is pressed against the one housing 31A provided with the vent hole 33
  • the other end surface is a pressed surface (second pressed surface) 3b that is pressed by the other housing (second housing) 31B.
  • the first surface 3a to be pressed and the one surface 2a of the film portion 2 are disposed on the same plane to form a flush flat surface.
  • the second pressed surface 3 b protrudes in the thickness direction more than the other surface 2 b of the film portion 2.
  • a recess 5 is formed in the tip surface 4a in the plane center of the membrane part 2.
  • the thick portion 4 provided is integrally molded, and correspondingly, the recess 34 into which the thick portion 4 is fitted is provided at the opening peripheral portion of the vent 33 in one housing 31A.
  • the thick portion 4 and the recess 34 are not essential components, and may not be provided.
  • a flat portion 35 is provided in which one surface 2a of the membrane portion 2 contacts substantially the entire surface.
  • An annular mounting portion 36 (see FIG. 2) for mounting the outer peripheral flange portion 3 of the diaphragm 1 is provided between the pair of housings 31A and 31B. Therefore, an annular step portion 37 is provided on one housing 31A. Is formed to form the outer peripheral wall 36a of the mounting portion 36, and the other housing 31B is provided with an annular stopper portion 38 having a projecting shape, and the inner peripheral wall 36b of the mounting portion 36 is formed.
  • the dimension c (see FIG. 2) in the thickness direction of the mounting portion 36 is set smaller than the dimension d (see FIG. 1) in the thickness direction in the free state of the outer peripheral flange portion 3 (c ⁇ d).
  • the dimension ⁇ e (see FIG. 2) in the width direction (radial direction) of the mounting portion 36 is set larger than the dimension ⁇ f (see FIG. 1) in the width direction in the free state of the outer peripheral flange portion 3 ( ⁇ e> ⁇ f) .
  • the gap g (see FIG. 2) between the flat portion 35 of one housing 31A and the stopper portion 38 of the other housing 31B is the same as the thickness dimension h (see FIG. 1) of the membrane portion 2 or It is set to be slightly larger than the thickness dimension h (g ⁇ h).
  • the film portion 2 is in contact with the flat surface portion 35 of the one housing 31A with the one surface 2a as shown in FIG. Becomes an initial movement posture, and pressure is applied to the diaphragm 1 in the initial movement posture, so that the film portion 2 is separated from the flat portion 35 of the housing 31A.
  • the outer peripheral flange portion 3 is compressed and deformed when mounted between the housings 31A and 31B as shown in FIG. 1 to FIG. 2, but even if the outer peripheral flange portion 3 is compressed and deformed in this manner, the membrane portion 2 Is supposed to be in contact with the flat portion 35 of the housing 31A.
  • the membrane portion 2 is already in the housing 31A in the initial posture where the outer peripheral flange portion 3 is attached to the housings 31A and 31B. In this case, it is necessary to take measures against such a case, because it may float away from the flat portion 35.
  • the first pressed surface 3a of the outer peripheral flange portion 3 is provided with a three-dimensional shape 7 on a plane, and this three-dimensional shape 7 is shown in FIG.
  • the outer peripheral flange portion 3 is mounted between the housings 31A and 31B and compressed and deformed, the outer peripheral flange portion is suppressed to suppress the occurrence of the floating phenomenon on the film portion 2 due to the deformation of the outer peripheral flange portion 3.
  • a thickness direction air gap 8 (shown in FIG. 2), which is a clearance space at the time of flange deformation, is set between 3 and one of the housings 31A.
  • the outer peripheral flange portion 3 when the outer peripheral flange portion 3 is mounted between the housings 31A and 31B, the outer peripheral flange portion 3 has a radial gap between the outer peripheral surface 3c of the outer peripheral flange portion 3 and the outer peripheral wall 36a of the housing mounting portion 36. It is set to the outside diameter size which can form 10 (shown in FIG. 2).
  • a protrusion (not shown) may be provided on a part of the outer peripheral surface 3 c of the outer peripheral flange portion 3 and the protrusion may be in contact with the outer peripheral wall 36 a of the housing mounting portion 36.
  • the second pressed surface 3b of the outer peripheral flange portion 3 may be a flat surface
  • the second pressed surface 3b is also provided with a three-dimensional shape 11 of a part on a plane, Specifically, this three-dimensional shape 11 is provided as a projection 12 at the center in the radial direction of the second pressed surface 3b, and by providing such a projection 12, as shown in FIG.
  • a thickness direction air gap 13 is set between the second pressed surface 3 b of the outer peripheral flange portion 3 and the bottom surface 36 d on the opposite side of the housing mounting portion 36 on the outer peripheral side.
  • the projection 12 is formed in an arc shape in a cross section taken along a plane including the central axis of the diaphragm 1 shown in FIG. 1 and has a second pressed surface 3b
  • the plan view shape is not limited to an annular shape, and if there is no problem with the sealability, the plurality of projections are not arranged in a circle, but are circumferentially arranged. It may be a structure.
  • a radial gap 10 is formed between the outer peripheral surface 3 c of the outer peripheral flange portion 3 and the outer peripheral wall 36 a of the housing mounting portion 36.
  • the radial air gap 10 absorbs a part of elastic deformation of the outer peripheral flange portion 3 due to vertical compression shown in FIGS. doing. Together with the thickness direction air gap 8, the air gap that absorbs the elastic deformation of the outer peripheral flange portion 3 can be further enlarged, and the occurrence of the floating of the film portion 2 can be more easily suppressed.
  • the gap that absorbs the elastic deformation of the outer peripheral flange portion 3 can be further enlarged, and the occurrence of the floating of the film portion 2 can be further easily suppressed.
  • the thickness direction air gap 13 may be formed not only on the outer peripheral side of the projection 12 but also on the inner peripheral side.
  • a plurality of convex portions such as the projections 9 and 12 having the three-dimensional shapes 7 and 11 may be provided in parallel to the first pressed surface 3a or the second pressed surface 3b of the outer peripheral flange portion 3, respectively.
  • the gaps 8, 13 in the thickness direction are provided between the protrusions 9, 12 as a relief for the rubber-like elastic material.
  • the three-dimensional shapes 7 and 11 may be recesses instead of the projections 9 and 12, etc.
  • the first pressed surface 3a or the second pressed surface 3b of the outer peripheral flange portion 3 In the state of being in direct contact with and pressed against the bottom surfaces 36c and 36d of the housing mounting portion 36, the air gaps 8 and 13 serving as escape areas of the rubber-like elastic body are between the outer peripheral flange 3 and the bottom surfaces 36c and 36d of the housing mounting portion 36. It is set. A plurality of recesses may also be provided in parallel.
  • the upper three-dimensional shape 11 provided on the second pressed surface 3b of the upper and lower three-dimensional shapes 7 and 11 is formed by the groove-shaped recess 14.
  • Each of the air gaps 8, 10 and 13 acts as a relief for the rubber-like elastic body when the outer peripheral flange portion 3 is compressed and deformed while being sandwiched between the housings 31A and 31B.
  • a part or the whole may disappear (the rubber-like elastic material is filled and it does not exist as a space).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Diaphragms And Bellows (AREA)
  • Braking Systems And Boosters (AREA)
  • Fluid-Damping Devices (AREA)
PCT/JP2011/057082 2010-03-29 2011-03-24 ダイアフラム Ceased WO2011122424A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US13/637,877 US20130014639A1 (en) 2010-03-29 2011-03-24 Diaphragm
CN201180016086.1A CN102822573B (zh) 2010-03-29 2011-03-24 隔膜

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-074546 2010-03-29
JP2010074546A JP5369037B2 (ja) 2010-03-29 2010-03-29 ダイアフラム

Publications (1)

Publication Number Publication Date
WO2011122424A1 true WO2011122424A1 (ja) 2011-10-06

Family

ID=44712133

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/057082 Ceased WO2011122424A1 (ja) 2010-03-29 2011-03-24 ダイアフラム

Country Status (4)

Country Link
US (1) US20130014639A1 (enExample)
JP (1) JP5369037B2 (enExample)
CN (1) CN102822573B (enExample)
WO (1) WO2011122424A1 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130220461A1 (en) * 2012-02-24 2013-08-29 Denso Corporation Diaphragm device and pressure regulating reservoir using the same
WO2013179738A1 (ja) * 2012-05-30 2013-12-05 株式会社フジキン ダイヤフラム及びダイヤフラム弁

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013238254A (ja) * 2012-05-11 2013-11-28 Advics Co Ltd ダイヤフラム装置とそれを用いた調圧リザーバ
DK2818960T3 (en) * 2013-06-24 2019-03-04 Danfoss As Dynamic valve diaphragm
WO2017082990A1 (en) * 2015-11-10 2017-05-18 Repligen Corporation Disposable alternating tangential flow filtration units
DE202017100281U1 (de) * 2017-01-19 2018-04-25 Neoperl Gmbh Membranventil
US20180373274A1 (en) * 2017-06-27 2018-12-27 Walbro Llc Diaphragm regulator for higher pressure input gas
DE102017011607A1 (de) * 2017-12-15 2019-06-19 Wabco Europe Bvba Membranventilanordnung für eine Druckluftbremsanlage
US20190323625A1 (en) 2018-04-23 2019-10-24 Rain Bird Corporation Valve With Reinforcement Ports And Manually Removable Scrubber

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5667457U (enExample) * 1979-10-29 1981-06-04
JPH0288058U (enExample) * 1988-12-27 1990-07-12
JP2009036304A (ja) * 2007-08-01 2009-02-19 Kurashiki Kako Co Ltd ダイヤフラム

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2623950A1 (de) * 1976-05-28 1977-12-01 Integral Hydraulik Langen & Co Hydro-pneumatischer druckspeicher
JP2002022011A (ja) * 2000-07-07 2002-01-23 Nok Corp ダイアフラム
CN201202080Y (zh) * 2008-05-14 2009-03-04 赵慧江 液压破碎锤蓄能器用橡胶隔膜
JP5304446B2 (ja) * 2008-08-28 2013-10-02 株式会社アドヴィックス 調圧リザーバ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5667457U (enExample) * 1979-10-29 1981-06-04
JPH0288058U (enExample) * 1988-12-27 1990-07-12
JP2009036304A (ja) * 2007-08-01 2009-02-19 Kurashiki Kako Co Ltd ダイヤフラム

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130220461A1 (en) * 2012-02-24 2013-08-29 Denso Corporation Diaphragm device and pressure regulating reservoir using the same
US9303772B2 (en) * 2012-02-24 2016-04-05 Advics Co., Ltd. Diaphragm device and pressure regulating reservoir using the same
WO2013179738A1 (ja) * 2012-05-30 2013-12-05 株式会社フジキン ダイヤフラム及びダイヤフラム弁
JP2013249867A (ja) * 2012-05-30 2013-12-12 Fujikin Inc ダイヤフラム及びダイヤフラム弁
US9423037B2 (en) 2012-05-30 2016-08-23 Kabushiki Kaisha Fujikin Diaphragm with flange and annular ridge and diaphragm valve using the same

Also Published As

Publication number Publication date
JP2011208675A (ja) 2011-10-20
CN102822573B (zh) 2015-05-13
US20130014639A1 (en) 2013-01-17
CN102822573A (zh) 2012-12-12
JP5369037B2 (ja) 2013-12-18

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