公开(公告)号：US20020035832A1

公开(公告)日：2002-03-28

申请号：US09933724

申请日：2001-08-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Eiji Nakamura ,  Hiroshi Mizukami

IPC: B60T008/36

CPC classification number: B60T8/4081 ,  B60T8/90 ,  B60T13/148 ,  B60T17/221 ,  F15B1/08 ,  F15B19/00 ,  F15B2201/205 ,  F15B2201/3153 ,  F15B2201/3158 ,  F15B2201/411 ,  F15B2201/415 ,  F15B2201/505 ,  F15B2201/51 ,  Y10S303/03 ,  Y10S303/11

Abstract: A diagnosing apparatus for diagnosing an accumulator operable to store under pressure a pressurized fluid delivered from a high-pressure source and to supply the pressurized fluid to a fluid-operated actuator for operating the fluid-operated actuator, the apparatus including a pressure detecting device for detecting a pressure of the pressurized fluid in the accumulator while the accumulator is placed in a fluid-tightly sealed state in which the accumulator is isolated from both the high-pressure source and the fluid-operated actuator, and a diagnosing device operable to diagnose the accumulator on the basis of the pressure of the pressurized fluid detected by the pressure detecting device in the fluid-tightly sealed state of the accumulator.

Abstract translation: 一种用于诊断蓄能器的诊断装置，其可操作以在压力下存储从高压源输送的加压流体，并将所述加压流体供应到用于操作所述流体操作的致动器的流体操作的致动器，所述装置包括压力检测装置， 当所述蓄能器处于流体密封状态，其中所述蓄能器与所述高压源和所述流体驱动致动器隔离时，检测所述蓄能器中的加压流体的压力，以及诊断装置， 基于由压力检测装置在储液器的流体密封状态下检测到的加压流体的压力的蓄能器。

公开(公告)号：US20020023532A1

公开(公告)日：2002-02-28

申请号：US09939912

申请日：2001-08-27

Inventor： Don B. Porter

IPC: F01B001/00

CPC classification number: E21B33/064 ,  E21B33/0355 ,  E21B34/16 ,  F15B1/024 ,  F15B1/08 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/3151 ,  F15B2201/411 ,  F15B2201/4155 ,  F15B2201/51 ,  F15B2201/515

Abstract: A system for remotely controlling an undersea device. The system employs a gas-pressurized liquid reservoir that can be recharged from at least one replaceable gas bottle. A pressure-regulating valve is employed to control the pressure of the liquid leaving the reservoir. A number of one-shot units, each in the form of a squib-actuated valve coupled with a piston accumulator, are employed to create a hydraulic pilot for a hydraulic direction control valve. The control valve functions to direct pressurized liquid from the reservoir to a hydraulic actuator or other type of hydraulic device.

公开(公告)号：US5630316A

公开(公告)日：1997-05-20

申请号：US558476

申请日：1995-11-16

Applicant: Yoshiyasu Itsuji ,  Shinji Terada

Inventor： Yoshiyasu Itsuji ,  Shinji Terada

IPC: F15B1/16 ,  F16D31/02

CPC classification number: F15B1/165 ,  F15B2201/205 ,  F15B2201/3152 ,  F15B2201/411 ,  F15B2201/51

Abstract: In a hydraulic driving apparatus with a bladder-type accumulator connected to a fluid supply pipe extending from a hydraulic fluid source to at least one actuator, the apparatus comprises a hydraulic pressure sensor attached to the fluid supply pipe in the vicinity of the bladder-type accumulator and a control unit responsive to a detected pressure detected by the hydraulic pressure sensor for controlling the hydraulic fluid source. The control unit carries out the steps of judging, at the start of the hydraulic driving apparatus, an initial gas pressure supplied to the bladder-type accumulator with reference to a gradient of variation of the detected pressure detected by the hydraulic pressure sensor; monitoring, during a normal operation of the hydraulic driving apparatus, a difference .DELTA.P between the initial gas pressure and the detected pressure; and judging occurrence of a trouble when the difference .DELTA.P becomes smaller than a predetermined first difference .DELTA.P1 or when the difference .DELTA.P becomes greater than a predetermined second difference .DELTA.P2 (.DELTA.P1

Abstract translation: 在具有连接到从液压流体源延伸到至少一个致动器的流体供应管的气囊式蓄能器的液压驱动装置中，该装置包括附接到膀胱型附近的流体供应管的液压传感器 蓄能器和响应于由液压传感器检测到的检测压力的控制单元，用于控制液压流体源。 控制单元执行以下步骤：参照液压传感器检测到的检测压力的变化梯度，判断液压驱动装置的起动气体压力供给到气囊式蓄能器; 在液压驱动装置的正常操作期间监测初始气体压力和检测到的压力之间的差ΔTATA; 并且当差值DELTA P变得小于预定的第一差值DELTA P1时，或当差值ΔTA变得大于预定的第二差值ΔTA（ΔTATA）时，判定出现故障。

公开(公告)号：US2828769A

公开(公告)日：1958-04-01

申请号：US47652354

申请日：1954-12-20

Applicant: WATERMAN ENGINEERING CORP

Inventor： COOPER ROY L

IPC: F15B1/10 ,  F16L55/052

CPC classification number: F15B1/103 ,  F15B2201/205 ,  F15B2201/3153 ,  F15B2201/411 ,  F15B2201/413 ,  F15B2201/4155 ,  F15B2201/51 ,  F16L55/052

公开(公告)号：US2826629A

公开(公告)日：1958-03-11

申请号：US32002452

申请日：1952-11-12

Applicant: FELTEN & GUILLEAUME CARLSWERK

Inventor： GEORG REUSCHLE ,  WERNER OCHEL ,  KARL DITGENS

IPC: F15B1/08

CPC classification number: F15B1/08 ,  F15B1/086 ,  F15B2201/205 ,  F15B2201/3154 ,  F15B2201/51

公开(公告)号：US2804884A

公开(公告)日：1957-09-03

申请号：US45013954

申请日：1954-08-16

Applicant: HYDRIL CO

Inventor： KNOX GRANVILLE S

IPC: F15B1/20

CPC classification number: F15B1/20 ,  F15B2201/205 ,  F15B2201/3152 ,  F15B2201/4155 ,  F15B2201/435 ,  F15B2201/51

公开(公告)号：US2757689A

公开(公告)日：1956-08-07

申请号：US32728052

申请日：1952-12-22

Applicant: HYDRIL CO

Inventor： KNOX GRANVILLE S

IPC: F15B1/20 ,  F16L55/052 ,  F16L55/053

CPC classification number: F16L55/052 ,  F15B1/20 ,  F15B2201/205 ,  F15B2201/3152 ,  F15B2201/415 ,  F15B2201/435 ,  F15B2201/51 ,  F16L55/053

公开(公告)号：US2450031A

公开(公告)日：1948-09-28

申请号：US57533045

申请日：1945-01-30

Applicant: AIRCRAFT HYDRAULICS INC

Inventor： ALEXANDRE BERGER

IPC: F15B1/10

CPC classification number: F15B1/103 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/3153 ,  F15B2201/32 ,  F15B2201/415 ,  F15B2201/51

公开(公告)号：US12123434B2

公开(公告)日：2024-10-22

申请号：US17602291

申请日：2019-04-08

Applicant: Volvo Construction Equipment AB ,  Norrhydro Oy

Inventor： Mika Sahlman ,  Jussi Mäkitalo ,  Ari Lappalainen ,  Peter Stambro

IPC: F15B11/04 ,  F15B1/02

CPC classification number: F15B11/04 ,  F15B1/024 ,  F15B2201/51 ,  F15B2201/515 ,  F15B2211/20546 ,  F15B2211/212 ,  F15B2211/625 ,  F15B2211/6309 ,  F15B2211/6346 ,  F15B2211/6654 ,  F15B2211/6656 ,  F15B2211/75 ,  F15B2211/763

Abstract: A hydraulic system includes: a high-pressure line; a pump configured to supply pressurized hydraulic fluid to the high-pressure line; a variable displacement hydraulic machine connected by a fluid connection to the high-pressure line for rotationally driving the rotatable load; an electronic control unit; an energy storing device connected to the high-pressure line and configured to communicate with the high-pressure line by receiving energy from the high-pressure line and/or supplying energy to the high-pressure line; and a first detector configured to detect the amount of energy stored in the energy storing device and to transmit a signal indicating said amount of energy stored to the electronic control unit. The electronic control unit is configured to control the volume flow intake of the variable displacement hydraulic machine dependent on a target output of the variable displacement hydraulic machine and on the detected amount of energy stored in the energy storing device.

公开(公告)号：US12031555B2

公开(公告)日：2024-07-09

申请号：US18061615

申请日：2022-12-05

Applicant: LIBERTY VEHICLE TECHNOLOGIES LIMITED

Inventor： Anthony Blackwell ,  Marc Amblard

IPC: F15B1/027 ,  B60T7/12 ,  B60T8/17 ,  B60T13/14 ,  B60T13/16 ,  B60T13/20 ,  B60T13/58 ,  B60T13/68 ,  B60T17/22 ,  F15B13/04 ,  F15B19/00 ,  F15B21/08 ,  B62D5/07 ,  F16D48/02

CPC classification number: F15B1/027 ,  B60T7/12 ,  B60T8/17 ,  B60T13/147 ,  B60T13/167 ,  B60T13/20 ,  B60T13/58 ,  B60T13/686 ,  B60T17/221 ,  F15B13/04 ,  F15B19/00 ,  F15B21/08 ,  B60T2260/02 ,  B60T2260/06 ,  B60T2260/08 ,  B60T2270/402 ,  B60T2270/82 ,  B62D5/07 ,  F15B2201/51 ,  F15B2211/50 ,  F16D48/02 ,  F16D2048/0203 ,  F16D2048/0221

Abstract: A fluidic control system (1) for controlling a vehicle, which includes a controller (2) and a closed fluidic circuit. The circuit includes a pump (3) for pressurizing fluid in the circuit, valve means (40, 50, 60), an actuator (4, 5, 6) and a precharge accumulator (7). The valve means (40, 50, 60) is fluidly connected to the inlet and outlet of the pump (3) and the actuator (4, 6) is fluidly connected to the valve means (40, 50, 60) for selectively receiving pressurized fluid therefrom. The precharge accumulator (7) includes a movable member (73, FIG. 2) that describes a variable volume (71) fluidly connected to the circuit between the valve means (40, 50, 60) and the inlet of the pump (3). The system (1) also includes a sensor (70) for determining the position of the movable member (73) for estimating the quantity of fluid and/or detecting an abnormal pressure variation within the circuit.