公开(公告)号：US5638868A

公开(公告)日：1997-06-17

申请号：US660676

申请日：1996-06-05

Applicant: Haim Loran

Inventor： Haim Loran

IPC: F16L55/04 ,  F15B1/10 ,  F15B1/22 ,  F16L55/053

CPC classification number: F15B1/22 ,  F15B1/103 ,  F16L55/053 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/3153 ,  F15B2201/411

Abstract: An improved hydraulic accumulator is introduced wherein a valve mechanism is used to seal a hydraulic fluid before the pressure charged piston reaches the end of the accumulator to minimize the loss of compressed gas by eliminating the pressure differential when the piston is fully extended, thereby prolonging the fatigue life of the accumulator vessel. Reduction of the pressure loading on the vessel will also prolong the life of the piston seals and metal bellows effectively extending the accumulator life and effectively allowing design for weight reduction and preservation of the integrity of the complete hydraulic or pneumatic system.

Abstract translation: 引入了一种改进的液压蓄能器，其中阀机构用于在压力充满的活塞到达蓄能器的端部之前密封液压流体，以通过消除活塞完全伸长时的压力差来最小化压缩气体的损失，从而延长 蓄能器容器的疲劳寿命。 降低容器上的压力负载也将延长活塞密封件和金属波纹管的使用寿命，有效延长了蓄能器的使用寿命，并有效地允许设计减轻重量并保持整个液压或气动系统的完整性。

公开(公告)号：US4997009A

公开(公告)日：1991-03-05

申请号：US502509

申请日：1990-03-30

Applicant: Yoshiharu Niikura ,  Akira Kebukawa

Inventor： Yoshiharu Niikura ,  Akira Kebukawa

IPC: B60G17/048 ,  B60G17/04 ,  F15B1/08 ,  F15B1/10 ,  F16J3/06

CPC classification number: B60G17/0424 ,  F15B1/103 ,  F15B2201/205 ,  F15B2201/3153 ,  F15B2201/3157 ,  F15B2201/3158 ,  F15B2201/413 ,  F15B2201/415

Abstract: In the interior of the housing of an accumulator, a metallic bellows and a self-seal mechanism are arranged. The metallic bellows partitions the interior of the housing into a gas chamber and a liquid chamber. The self-seal mechanism includes an elastic seal member and a face which the elastic seal member opposes. When the bellows is compressed to the predetermined extent due to introduction of a compressed gas into the gas chamber, the elastic seal member is brought into contact with the face, thus closing a flow port. The elastic seal member has a slanted face, so that a wedge-shaped liquid guide gap is produced when the elastic seal member is in contact with the face. When, in this condition, the compressed liquid is introduced into the flow port, part of the liquid enters the liquid guide gap, thus permitting the seal member to easily separate from the face.

公开(公告)号：US4308721A

公开(公告)日：1982-01-05

申请号：US71961

申请日：1979-09-04

Applicant: Alan V. Thomas ,  Geoffrey E. Bone

Inventor： Alan V. Thomas ,  Geoffrey E. Bone

IPC: F04B43/10 ,  F15B1/08 ,  F15B1/26 ,  F15B7/08 ,  F15B11/072 ,  F15B15/19 ,  F42B3/04 ,  F01B29/00

CPC classification number: F15B1/08 ,  F15B1/26 ,  F15B11/0725 ,  F15B15/19 ,  F42B3/04 ,  F15B2201/205 ,  F15B2201/3153 ,  F15B2201/411 ,  F15B2201/51

Abstract: The invention relates to a fluid supply system and seeks to provide a simpler, safer but reliable system than at present known. The fluid supply system comprises a multi-charge solid propellant gas generator and a fluid expulsion unit integrated into a single unit, the gas generator being provided in a cap (8) for a chamber (1) having a gas portion (3) and a fluid portion (2) and a movable partition (4) between these two portions operable to expel fluid from the chamber when the gas generator is rendered operative. The system also comprises ignition control means (22) operable to control the ignition of the solid propellant charges (13) when required to give a fully controllable system output.The system can be designed for supplying under pressure fluids such as hydraulic oil, fuels, oxidants and water and is particularly useful in aerospace applications.

Abstract translation: 本发明涉及一种流体供应系统，并寻求提供比目前已知的更简单，更安全但可靠的系统。 流体供应系统包括多电荷固体推进剂气体发生器和集成到单个单元中的流体排出单元，气体发生器设置在具有气体部分（3）的腔室（1）的盖子（8）中，并且 流体部分（2）和这两个部分之间的活动隔板（4）可操作以当气体发生器工作时从腔室排出流体。 该系统还包括点火控制装置（22），其可操作以在需要时控制固体推进剂装料（13）的点火以给出完全可控的系统输出。 该系统可以设计用于在压力下的液体（如液压油，燃料，氧化剂和水）供应液体，并且在航空应用中特别有用。

公开(公告)号：US3939872A

公开(公告)日：1976-02-24

申请号：US407364

申请日：1973-10-17

Applicant: Robert S. Wentworth, Jr.

Inventor： Robert S. Wentworth, Jr.

IPC: F15B1/08 ,  F15B1/10 ,  F16L51/02 ,  F16L55/04

CPC classification number: F15B1/103 ,  F15B2201/21 ,  F15B2201/3153 ,  F15B2201/3157 ,  F15B2201/411 ,  F15B2201/413 ,  Y10T137/7781

Abstract: A pressure transfer unit having a movable partition including a flexible bellows for separating an internal, controlled-pressure chamber from a reference-pressure chamber. A valve is provided for limiting the volume of liquid that can be injected into and received in the controlled-pressure chamber during filling or refilling thereof. A spring biases the partition to apply a predetermined force to the partition and to shut off fluid transfer in the event of bellows failure. The unit is arranged for simple and rapid assembly and disassembly.

Abstract translation: 一种压力传递单元，其具有可移动分隔件，该活动分隔件包括用于将内部控制压力室与参考压力室分离的柔性波纹管。 提供一种阀门，用于限制在填充或再充填期间可以注入和接收在受控压力室中的液体的体积。 弹簧偏压隔板以对隔板施加预定的力并且在波纹管故障的情况下关闭流体转移。 该装置安装简单快速的装配和拆卸。

公开(公告)号：US3783905A

公开(公告)日：1974-01-08

申请号：US3783905D

申请日：1971-10-05

Applicant: LUCAS INDUSTRIES LTD

Inventor： SIMISTER BOTTOMS H

IPC: F15B1/10 ,  F16L55/052 ,  F16L55/04

CPC classification number: F15B1/103 ,  F15B2201/205 ,  F15B2201/3153 ,  F15B2201/32 ,  F15B2201/413 ,  F15B2201/4155 ,  F15B2201/61 ,  F16L55/052

Abstract: A hydraulic accumulator has a chamber divided into compartments by a slidable member and a bellows. The bellows is provided at its outer and inner edges with axially extending portions which nest together when the bellows is compressed by discharge of hydraulic fluid from one of the compartments, whereby relative lateral movement of the bellows segments is prevented.

Abstract translation: 液压蓄能器具有通过可滑动构件和波纹管分成隔室的腔室。 波纹管在其外边缘和内边缘处设置有轴向延伸部分，当通过从其中一个隔室排放液压流体来压缩波纹管时，轴向延伸部分嵌套在一起，从而防止波纹管段的相对横向移动。

公开(公告)号：US3592270A

公开(公告)日：1971-07-13

申请号：US3592270D

申请日：1968-10-24

Applicant: FACTORY MUTUAL RES CORP

Inventor： LIVINGSTON WILLIAM L

IPC: A62C99/00 ,  F15B1/10 ,  A62C37/06

CPC classification number: A62C99/009 ,  F15B1/103 ,  F15B2201/205 ,  F15B2201/3153 ,  F15B2201/411 ,  F15B2201/415 ,  F15B2201/615

Abstract: A double-rate flow controller including a means for permitting fluid flow at a first high-flow rate, a means for reducing the first flow rate to a second lower flow rate and a means for regulating the volume of water passing through the flow controller during the high-flow condition before the high-flow rate is terminated and the low-flow rate begins.

公开(公告)号：US2365994A

公开(公告)日：1944-12-26

申请号：US52765744

申请日：1944-03-22

Applicant: ELECTROL INC

Inventor： ASHTON BENJAMIN N

IPC: F15B1/08 ,  F15B1/10

CPC classification number: F15B1/08 ,  F15B1/103 ,  F15B2201/205 ,  F15B2201/3153 ,  F15B2201/411 ,  F15B2201/413 ,  F15B2201/4155

公开(公告)号：US11781569B2

公开(公告)日：2023-10-10

申请号：US17275756

申请日：2019-09-09

Applicant: HYDAC TECHNOLOGY GMBH

Inventor： Herbert Baltes ,  Peter Kloft

IPC: F15B1/10 ,  F15B1/14

CPC classification number: F15B1/103 ,  F15B1/14 ,  F15B2201/205 ,  F15B2201/3153 ,  F15B2201/3156 ,  F15B2201/3157 ,  F15B2201/3158 ,  F15B2201/4053 ,  F15B2201/4056 ,  F15B2201/605 ,  F15B2201/61

Abstract: A bellows accumulator, consisting of at least two housing parts (4, 6) which form an accumulator housing (2), and having a separating bellows (20), which is movably arranged in the accumulator housing (2) and separates two media spaces (8, 22) from each other and is at least on its one free end fixed to a securing device (24) in the accumulator housing (2), wherein said securing device (24) is welded to the adjacently arranged housing parts (4, 6), is characterized in that the adjacently arranged housing parts (4, 6) comprise at least in part titanium materials, in that the securing device (24) consists of at least two interconnected components (26, 30), at least one (26) of which comprises at least in part titanium materials and is welded to the adjacently arranged housing parts (4, 6), and in that the respective other component (30), consisting of a different metal material, is used for securing the separating bellows (20) to the securing device (24).

公开(公告)号：US11691751B2

公开(公告)日：2023-07-04

申请号：US16469019

申请日：2017-12-15

Applicant: SAFRAN AIRCRAFT ENGINES

Inventor： Loic Pora

IPC: B64D37/00 ,  F02C7/22 ,  F16L55/07 ,  F15B1/02

CPC classification number: B64D37/005 ,  F02C7/222 ,  F16L55/07 ,  F05D2260/96 ,  F15B1/021 ,  F15B2201/3153 ,  F15B2201/405

Abstract: An accumulator designed to damp the pressure waves of the hydraulic shocks originating in a downstream section of a duct is arranged inside the duct, with the opening of the accumulator pointing downstream. This results in excellent absorption of the pressure wave and protection of the circuit from possible accumulations of air, water or ice, there being no areas where the flow stagnates. Immersing the accumulator in the flow also makes it possible to ensure that the equipment is protected in the event of a fire.

公开(公告)号：US20180128288A1

公开(公告)日：2018-05-10

申请号：US15570937

申请日：2016-06-16

Applicant: EAGLE INDUSTRY CO., LTD.

Inventor： Tatsuhiro ARIKAWA ,  Matsuyoshi YAMASHITA

IPC: F15B1/10

CPC classification number: F15B1/106 ,  F15B1/103 ,  F15B20/007 ,  F15B2201/3153 ,  F15B2201/41

Abstract: An accumulator has a pressure vessel, a partition portion comparting an internal space of the pressure vessel into a gas chamber having sealed gaseous matter and a liquid chamber having introduced liquid, and a bellows connected to the partition portion. The partition portion is provided with a bellows connection portion connected to the bellows, a seal arranged in a liquid chamber side of the bellows connection portion, and a seal retention portion fixed to the bellows connection portion and retains the seal. The seal retention portion is constructed by a leaf spring which is elastically deformable in a part thereof, and is structured by integrally forming a fixed portion fixed to the bellows connection portion, and a retention portion retaining the seal. Accordingly, the accumulator can reduce the number of parts of a pressure fluctuation absorbing mechanism, can be easily assembled, and can reduce a parts cost.