US20130014639A1 - Diaphragm - Google Patents

Diaphragm Download PDF

Info

Publication number
US20130014639A1
US20130014639A1 US13/637,877 US201113637877A US2013014639A1 US 20130014639 A1 US20130014639 A1 US 20130014639A1 US 201113637877 A US201113637877 A US 201113637877A US 2013014639 A1 US2013014639 A1 US 2013014639A1
Authority
US
United States
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.)
Abandoned
Application number
US13/637,877
Other languages
English (en)
Inventor
Shuji Takeshita
Kazuma Shigeta
Koji Aoba
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
Assigned to NOK CORPORATION, ADVICS CO., LTD. reassignment NOK CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SHIGETA, KAZUMA, AOBA, KOJI, TAKESHITA, SHUJI
Publication of US20130014639A1 publication Critical patent/US20130014639A1/en
Abandoned legal-status Critical Current

Links

Images

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, the diaphragm suitably used for an accumulator of a fluid pressure control apparatus for a vehicle, or the like.
  • a diaphragm 1 made of a rubber-like elastic body, and including a flexible film portion 2 and an outer peripheral flange portion 3 integrally provided on the peripheral edge of the film portion 2 , has been known.
  • the diaphragm 1 is used in, for example, the accumulator of the fluid pressure control apparatus for a vehicle, or the like, and is attached to a pressure room 32 in a housing 31 .
  • the film portion 2 is flexibly deformed by operation of pressure, and changes a volume of the pressure room 32 and open/close a vent hole 33 .
  • FIG. 6(A) a diaphragm having a type, in which one surface 2 a in the thickness direction of the film portion 2 and one end surface 3 a in the thickness direction of the outer peripheral flange portion 3 are arranged on the same plane, has been developed.
  • the diaphragm 1 is attached by which the outer peripheral flange portion 3 is sandwiched between a pair of an upper housing 31 A and a lower housing 31 B.
  • the film portion 2 becomes, as an initial moving attitude, a state in which one surface 2 a of the film portion 2 is in contact with a plane portion 35 of the housing 31 A in the lower side in FIG. 6(B) , where the vent hole 33 is provided.
  • the diaphragm 1 illustrated in FIGS. 6(A) and 6(B) the diaphragm 1 is largely pressed and deformed when the outer peripheral flange portion 3 is inserted between the pair of the housings 31 A and 31 B.
  • FIG. 6(C) by receiving the effect of the deformation, one surface 2 a of the film portion 2 may be separated and risen upward from the plane portion 35 of the lower side housing 31 . In such a case, it is necessary to prevent the rising upward of the film portion 2 and ensure an accurate initial moving attitude.
  • the present invention is directed to provide a diaphragm enabling to prevent generation of the rising upward phenomenon of the film portion when the diaphragm is attached to the housing.
  • the first aspect of the diaphragm in the present invention is that the diaphragm includes a flexible film portion and an outer peripheral flange portion integrally provided on a peripheral edge of the film portion.
  • the outer peripheral flange portion is provided between and held by a pair of a first housing and a second housing.
  • the outer peripheral flange portion includes a first pressed surface and a three-dimensional shape composed of a projected portion and a recessed portion.
  • the first pressed portion is one surface of the diaphragm in the thickness direction and is in close contact with the first housing.
  • the diaphragm according to the present invention includes the flexible film portion and the outer peripheral flange portion integrally provided on the peripheral edge of the film portion.
  • the outer peripheral flange portion is provided between and held by a pair of the first housing and the second housing, for example, the diaphragm is used in an accumulator of the fluid pressure control apparatus for a vehicle, or the like, the state in which the film portion is seated in the first housing is set to be an initial moving attitude.
  • the diaphragm operates so as to separate the film portion from the first housing.
  • voids in the thickness direction can be defined between the outer peripheral flange portion and the first housing.
  • the voids in the thickness direction absorbs the deformation by compression from the first housing and the second housing of the outer peripheral flange portion, so that the rising upward of the film portion from the first housing generated by the effect of the deformation can be prevented, when the diaphragm is attached between the first housing and the second housing, i.e., in the initial moving attitude where the pressure difference is not generated.
  • the second aspect of the diaphragm in the present invention is that, in the diaphragm according to the first aspect, the three-dimension shape is an annular projection provided on a center portion in the diameter direction of the first pressed surface.
  • the voids in the thickness direction is defined on the more outer side in the diameter direction than the annular projection on the first pressed surface.
  • the voids in the thickness direction is defined on the more outer side in the diameter direction than the annular projection on the first pressed surface, so that a space of the voids in the thickness direction can be sufficiently secured by the annular projection.
  • the third aspect of the diaphragm in the present invention is that, in the diaphragm according to the first aspect or second aspect, when the outer peripheral flange portion is attached between the first housing and the second housing, the outer peripheral flange portion is set to have the outer diameter size which can define the voids in the diameter direction between the outer peripheral surface of the outer peripheral flange portion and at least one of the first housing or the second housing, in the diameter direction of the diaphragm.
  • the fourth aspect of the diaphragm in the present invention is that, in any one of the diaphragm according to the first aspect or third aspect, the outer peripheral flange portion includes a second pressed surface, which is another surface in the thickness direction of the diaphragm and pressed by the second housing, and a three-dimensional shape composed of a projected portion or a recessed portion on the second pressed surface.
  • the voids in the thickness direction can be easily defined between the outer peripheral flange portion and the second housing.
  • the deformation by the compression from the first housing and the second housing can be more easily absorbed by the voids in the thickness direction.
  • the fifth aspect of a supporting structure of the diaphragm in the present invention is the diaphragm supporting structure which holds the diaphragm by the first housing and the second housing, and includes any one of diaphragm according to the first aspect or fourth aspect as the diaphragm.
  • the rising upward of the film portion from the first housing can be prevented by any one of the diaphragm according to the first aspect or fourth aspect.
  • the present invention has following effects.
  • the voids in the thickness direction and the voids in the diameter direction are set around the outer peripheral flange portion and refuges of the rubber-like elastic body are secured at the time of deformation of the flange, so that the deformation of the flange portion can be absorbed in the refuges to prevent the influence of the deformation to reach the film portion in the inner peripheral side. Therefore, the phenomenon of the rising upward of the film portion can be prevented and the accurate initial moving attitude can be secured.
  • FIG. 1 is a view illustrating a diaphragm according to an example of the present invention.
  • A is a half cross-sectional view in the state before being attached and
  • B is an enlarged view of the essential part of (A).
  • FIG. 2 is a view illustrating the same diaphragm in FIG. 1 .
  • (A) is a half cross-sectional view in the state being attached and (B) is an enlarged view of the essential part of (A).
  • FIG. 3 is a view illustrating a diaphragm according to another example of the present invention.
  • (A) is a half cross-sectional view in the state before being attached and
  • (B) is an enlarged view of the essential part of (A).
  • FIG. 5 is a cross-sectional view illustrating the attached state of a diaphragm according to a conventional example.
  • FIG. 6 is the diaphragm according to the comparative example.
  • A is a half cross-sectional view in the state before being attached
  • B is an enlarged view of the essential part of (A)
  • C is a half cross-sectional view in the defect generation state.
  • a diaphragm 1 according to the present example is formed in a disk-like shape by a predetermined rubber-like elastic body.
  • the diaphragm integrally includes a flexible film portion 2 and an annular outer peripheral flange portion (outer peripheral attaching portion) 3 provided at a peripheral edge of the film portion 2 .
  • the diaphragm 1 according to the present examples is used for an accumulator of a fluid pressure control apparatus for vehicles which performs ABS control, ESC control, or the like.
  • the outer peripheral flange portion 3 is sandwiched by a pair of upper and lower housings 31 A and 31 B to be attached to a pressure room 32 (refer to FIG.
  • the film portion 2 is formed to be a flat plate having a uniform thickness over the whole surface (however, the case when a thick portion described below is provided is excepted).
  • the film portion 2 includes one surface 2 a facing to one housing 31 A (a first housing), in which the vent hole 33 is provided, and another surface 2 b in the opposite side.
  • the outer peripheral flange portion 3 is set to have a larger thickness than the film portion 2 and formed to have a cross-sectional approximately rectangular shape.
  • One end surface in the thickness direction of the outer peripheral flange portion is set to be a pressed surface (a first pressed surface) 3 a with respect to the one housing 31 A in which the vent hole 33 is provided, and another end surface is set to be a pressed surface (a second pressed surface) 31 b pressed by the another housing (a second housing) 31 B.
  • the first pressed surface 3 a and the one surface 2 a of the film portion 2 is arranged on the same plane to be a flat surface.
  • the second pressed surface 3 b protrudes more in the thickness direction than the another surface 2 b of the film portion 2 .
  • a thick portion 4 having recessed part 5 is integrally formed at the plane center of the film portion 2 .
  • a recessed portion 34 for inserting the thick portion 4 is provided around the opening of the vent hole 33 in the one housing 31 A.
  • the thick portion 4 and the recessed portion 34 are not indispensable configurations, so that these portions can not be provided.
  • the plane portion 35 which is in contact with the approximately whole surface of the one surface 2 a of the film portion 2 , is provided.
  • an annular attaching portion 36 (refer to FIG. 2 ) for attaching the outer peripheral flange portion 3 of the diaphragm 1 is provided.
  • an annular step portion 37 is provided to form an outer peripheral wall 36 a of the attaching portion 36 and, in the another housing 31 B, an annular stopper portion 38 having a projection shape is provided to form an inner peripheral wall 36 b of the attaching portion 36 .
  • a size c of the attaching portion 36 in the thickness direction is set to be smaller than a size d of the outer peripheral flange portion 3 in the thickness direction in a free state (c ⁇ d) (refer to FIG. 1 ).
  • a size ⁇ e of the attaching portion 36 in the width direction is set to be larger than a size ⁇ f of the outer peripheral flange portion 3 in the width direction in the free state ( ⁇ e> ⁇ f) (refer to FIG. 1 ).
  • a distance g between the plane portion 35 of the one housing 31 A and the stopper portion 38 of the another housing 31 B is set to be the same as a thickness size h of the film portion 2 (refer to FIG. 1 ) or a little larger than the thickness size of the film portion 2 (g ⁇ h).
  • the film portion 2 can be already separated and risen from the planet portion 35 of the housing 31 A in the initial moving attitude in which the outer peripheral flange portion 3 is only attached between the housings 31 A and 31 B. In such a case, the countermeasure of this phenomenon is necessary.
  • a three-dimensional shape 7 is provided on a part of the plane of the first pressed surface 3 a of the outer peripheral flange portion 3 .
  • the three-dimensional shape 7 sets voids in the thickness direction 8 (which are illustrated in FIG. 2 ) between the outer peripheral flange portion 3 and the one housing 31 A.
  • the voids in the thickness direction 8 becomes a refuge space at a time of deformation of the outer peripheral flange portion 3 and prevents generation of the phenomenon of rising upward of the film portion 2 by the deformation of the outer peripheral flange portion 3 , when the outer peripheral flange portion 3 is attached between the housings 31 A and 31 B and compressed and deformed.
  • the projection 9 is annually formed on the whole periphery of the first pressed surface 3 a .
  • the shape in the plane view is not limited to the circle shape but can be an arrangement in which a plurality of projections are arranged on the first pressed surface 3 a in the circumferential direction, if there are no problems in the sealing ability.
  • the outer peripheral flange portion 3 is set to have the outer diameter size enabling to define voids in the diameter direction 10 (which is illustrated in FIG. 2 ) between the outer peripheral surface 3 c of the outer peripheral flange portion 3 and the outer peripheral wall 36 a of the housing attaching portion 36 , when the outer peripheral flange portion 3 is attached between the housings 31 A and 31 B.
  • projections (not illustrated) can be provided and in contact with the outer peripheral wall 36 a of the housing attaching portion 36 .
  • the second pressed surface 3 b of the outer peripheral flange portion 3 can be a flat surface
  • a three-dimensional shape 11 in a part on the plane is also provided on the second pressed surface 3 b. More specifically, the three-dimensional shape 11 is provided as a projection 12 at a center portion in the diameter direction of the second pressed surface 3 b.
  • the voids in the thickness direction 13 is set on the outer peripheral side of the projection 12 and between the second pressed surface 3 b of the outer peripheral flange portion 3 and a bottom surface 36 d in the opposite side of the housing attaching portion 36 , as illustrated in FIG. 2 .
  • the projection 12 is formed to have a circle shape in a cross section cut by a plane containing a center axis of the diaphragm illustrated in FIG. 1 .
  • the projection 12 is annually formed on the whole periphery of the second pressed surface 3 b.
  • the shape of the plane view of the projection 12 is not limited to the circle shape but can be a structure in which a plurality of projections are arranged in the circumferential direction, if there are no problems in the sealing ability.
  • the three-dimensional shape 7 in a part on the plane i.e., the projection 9
  • the projection 9 is provided on the first pressed surface 3 a of the outer peripheral flange portion 3 .
  • the voids in the thickness direction 8 is defined on the outer peripheral side of the projection 9 and between the first pressed surface 3 a of the outer peripheral flange portion 3 and the bottom surface 36 c of the housing attaching portion 36 .
  • the voids in the thickness direction 8 _ has a size enabling to absorb the elastic deformation of the outer peripheral flange portion 3 by the compression in the vertical direction illustrated in FIGS.
  • the voids in the thickness direction 8 can be provided not only on the outer peripheral side but also the inner peripheral side.
  • the voids in the diameter direction 10 are defined between the outer peripheral surface 3 c of the outer peripheral flange portion 3 and the outer peripheral wall 36 a of the housing attaching portion 36 together with aforementioned voids in the thickness direction 8 .
  • the voids in the diameter direction 10 absorbs a part of the elastic deformation of the outer peripheral flange portion 3 generated by the vertical compression illustrated in FIGS. 1 and 2 , when the diaphragm 1 is attached between the first housing 31 A and second housing 31 B.
  • the voids in the diameter direction 10 By adding the voids in the diameter direction 10 to the voids in the thickness direction 8 , the voids absorbing the elastic deformation of the outer peripheral flange portion 3 can be more enlarged, and the generation of the rising upward of the film portion 2 can be more easily prevented.
  • the three-dimensional shape 11 i.e., the projection 12 is also provided on the second pressed surface 3 b of the outer peripheral flange portion 3 , so that the voids in the thickness direction 13 is defined on the outer peripheral side of the projection 12 and between the second pressed surface 3 b and the bottom surface 36 b of the housing attaching portion 36 .
  • the voids in the thickness direction 13 also absorbs a part of the elastic deformation of the outer peripheral flange portion 3 by the compression in the vertical direction illustrated in FIGS. 1 and 2 , when the diaphragm 1 is attached between the first housing 31 A and the second housing 31 B.
  • the voids in the thickness direction 13 can enlarge more the voids absorbing the elastic deformation of the outer peripheral flange portion 3 , so that the generation of rising upward of the film portion 2 can be more easily prevented.
  • the voids in the thickness direction 13 can be defined not only on the outer peripheral side of the projection 12 but also on the inner peripheral side of the projection 12 .
  • the projected portion such as, the projections 9 and 12 which are the above voids three-dimensional shapes 7 and 11
  • the projected portion there is a case in which a plurality of projected portions is respectively provided in parallel on the first pressed surface 3 a or the second pressed surface 3 b of the outer peripheral flange portion 3 .
  • the voids in the thickness direction 8 and 13 which become the refuge of the rubber-like elastic body, are set between the projections 9 and 12 each other.
  • the three-dimensional shape 7 , 11 can be a recessed portion instead of the projected portions, such as, the projections 9 and 12 .
  • voids 8 and 13 which become the refuge of the rubber-like elastic body, are set between the outer peripheral flange portion 3 and the bottom surfaces 36 c and 36 d of the housing attaching portion 36 , while being in the state that the first pressed surface 3 a or the second pressed surface 3 b of the outer peripheral flange portion 3 are directly in contact with the bottom surface 36 c or 36 d of the housing attaching portion 36 and compressed.
  • a plurality of recessed portions are arrange in parallel.
  • the three-dimensional shape 11 in the upper side in figures is formed on the second pressed surface 3 b by a groove-shaped recessed portion 14 , in the upper and lower three-dimensional shapes 7 and 11 .
  • each voids 8 , 10 , and 13 act as the refuge of the rubber-like elastic body when the outer peripheral flange portion 3 is sandwiched between the housings 31 A and 31 B, and compressed and deformed.
  • the aforementioned each voids 8 , 10 , and 13 act as the refuge of the rubber-like elastic body when the outer peripheral flange portion 3 is sandwiched between the housings 31 A and 31 B, and compressed and deformed.

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)
US13/637,877 2010-03-29 2011-03-24 Diaphragm Abandoned US20130014639A1 (en)

Applications Claiming Priority (3)

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
PCT/JP2011/057082 WO2011122424A1 (ja) 2010-03-29 2011-03-24 ダイアフラム

Publications (1)

Publication Number Publication Date
US20130014639A1 true US20130014639A1 (en) 2013-01-17

Family

ID=44712133

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/637,877 Abandoned US20130014639A1 (en) 2010-03-29 2011-03-24 Diaphragm

Country Status (4)

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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150167853A1 (en) * 2012-05-30 2015-06-18 Kabushiki Kaisha Fujikin Diaphragm and Diaphragm Valve
US9303772B2 (en) 2012-02-24 2016-04-05 Advics Co., Ltd. Diaphragm device and pressure regulating reservoir using the same
US20180373274A1 (en) * 2017-06-27 2018-12-27 Walbro Llc Diaphragm regulator for higher pressure input gas
WO2019115027A1 (de) * 2017-12-15 2019-06-20 Wabco Europe Bvba Membranventilanordnung für eine druckluftbremsanlage
US11156219B2 (en) * 2015-11-10 2021-10-26 Repligen Corporation Disposable alternating tangential flow filtration units
US11391392B2 (en) 2018-04-23 2022-07-19 Rain Bird Corporation Valve with reinforcement ports and manually removable scrubber
US11549596B2 (en) * 2017-01-19 2023-01-10 Neoperl Gmbh Diaphragm valve

Families Citing this family (2)

* 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

Citations (1)

* 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

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5667457U (enExample) * 1979-10-29 1981-06-04
JPH0627876Y2 (ja) * 1988-12-27 1994-07-27 エヌオーケー株式会社 ダイアフラム
JP2002022011A (ja) * 2000-07-07 2002-01-23 Nok Corp ダイアフラム
JP5060196B2 (ja) * 2007-08-01 2012-10-31 倉敷化工株式会社 ダイヤフラム
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 (1)

* 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

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9303772B2 (en) 2012-02-24 2016-04-05 Advics Co., Ltd. Diaphragm device and pressure regulating reservoir using the same
US20150167853A1 (en) * 2012-05-30 2015-06-18 Kabushiki Kaisha Fujikin Diaphragm and Diaphragm Valve
US9423037B2 (en) * 2012-05-30 2016-08-23 Kabushiki Kaisha Fujikin Diaphragm with flange and annular ridge and diaphragm valve using the same
US11156219B2 (en) * 2015-11-10 2021-10-26 Repligen Corporation Disposable alternating tangential flow filtration units
US20220008803A1 (en) * 2015-11-10 2022-01-13 Repligen Corporation Disposable Alternating Tangential Flow Filtration Units
US11549596B2 (en) * 2017-01-19 2023-01-10 Neoperl Gmbh Diaphragm valve
US20180373274A1 (en) * 2017-06-27 2018-12-27 Walbro Llc Diaphragm regulator for higher pressure input gas
WO2019115027A1 (de) * 2017-12-15 2019-06-20 Wabco Europe Bvba Membranventilanordnung für eine druckluftbremsanlage
US11391392B2 (en) 2018-04-23 2022-07-19 Rain Bird Corporation Valve with reinforcement ports and manually removable scrubber

Also Published As

Publication number Publication date
WO2011122424A1 (ja) 2011-10-06
JP2011208675A (ja) 2011-10-20
CN102822573B (zh) 2015-05-13
CN102822573A (zh) 2012-12-12
JP5369037B2 (ja) 2013-12-18

Similar Documents

Publication Publication Date Title
US20130014639A1 (en) Diaphragm
CN103890443B (zh) 流体封入式隔振装置
US10480466B2 (en) Diaphragm and pulsation damper using same
EP0718503A2 (en) Container for diaphragm and diaphragm device
JP5919129B2 (ja) 防振装置
JP2016121771A (ja) 液体封入式防振装置
KR101709036B1 (ko) 커넥터
JP2016113922A5 (enExample)
US10144363B2 (en) Mounting assembly of vehicular utility part mounting member and vehicular interior part
US7934709B2 (en) Viscous fluid-sealed damper
JP5392442B2 (ja) ガスケット及び密封構造
WO2019182783A1 (en) Pressure sensor unit with rectangular gasket
CN112368192A (zh) 具有分隔元件的压力设备
CN109040923A (zh) 喇叭模组及含其的移动终端
JP2015224651A (ja) 液封入式防振装置
JP2012059552A (ja) 電池収納部カバーおよび電子機器
JP6896924B2 (ja) アキュムレータ
JP2016121774A (ja) 液体封入式防振装置
JPWO2019022080A1 (ja) アキュムレータ
JP5449105B2 (ja) 電池収納部カバーおよび電子機器
JP2011085194A (ja) 液封型防振装置
JP5616825B2 (ja) 液封入式防振装置
JP6022891B2 (ja) フィルム一体型防水パッキン
JP2013238254A (ja) ダイヤフラム装置とそれを用いた調圧リザーバ
JP2008157355A (ja) シール構造

Legal Events

Date Code Title Description
AS Assignment

Owner name: NOK CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKESHITA, SHUJI;SHIGETA, KAZUMA;AOBA, KOJI;SIGNING DATES FROM 20120908 TO 20120912;REEL/FRAME:029039/0317

Owner name: ADVICS CO., LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKESHITA, SHUJI;SHIGETA, KAZUMA;AOBA, KOJI;SIGNING DATES FROM 20120908 TO 20120912;REEL/FRAME:029039/0317

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION