公开(公告)号：US20200263804A1

公开(公告)日：2020-08-20

申请号：US16788739

申请日：2020-02-12

Applicant: ELBI INTERNATIONAL S.p.A.

Inventor： Luca Magnone ,  Luigi Aita

IPC: F16K31/36 ,  F16K11/02 ,  F16K11/048

Abstract: Three-way valve drivable by a pump, switchable between at least two switch positions wherein a first port is selectively in fluid communication with a second port or with a third port. The three-way valve comprises a movable support and a pair of obstructing members carried by the movable support, at least one of which is responsive to the pressure applied by the pump at the first port, at least one of the movable support and obstructing members to being movable due to transitions between an off-state and an on-state of the circulation pump. The obstructing members are adapted to engage reciprocatingly the respective seats of the three-way valve. The obstructing members are capable of changing shape synchronously when the pump switches from the off-state to the on-state.

公开(公告)号：US10711811B2

公开(公告)日：2020-07-14

申请号：US16100240

申请日：2018-08-10

Applicant: Hamilton Sundstrand Corporation

Inventor： Piotr Kozlowski ,  Piotr Sawicki

IPC: F16K31/36 ,  F15B13/043

Abstract: The present disclosure relates to a servovalve assembly comprising a pair of opposed nozzles spaced apart by a first gap. A control element positioned in the first gap (G) between the pair of opposed nozzles. Each nozzle has an outlet opening. The control element has a central control portion and two resiliently deformable end portions at opposite ends of the central control portion. The central control portion is perpendicular to a central axis (C) of each nozzle outlet opening. The control element is configured such that the two resiliently deformable end portions elastically deform when the control element is placed under tension by a force applied parallel to the central control portion, so as to move the control element in a direction parallel to the central axis (C) of each nozzle outlet opening.

公开(公告)号：US20200072116A1

公开(公告)日：2020-03-05

申请号：US16467657

申请日：2017-11-28

Applicant: Volvo Truck Corporation

Inventor： Rajasekar Jonnalagadda Balu

IPC: F01P7/14 ,  F01P3/18 ,  F01P11/04 ,  F16K5/06 ,  F16K17/34 ,  F16K31/163 ,  F16K31/363 ,  F16K31/36

Abstract: The present invention relates to a cooling system valve (24) for an internal combustion engine cooling system (12), the internal combustion engine cooling system (12) comprising a radiator (14) and a coolant passage (16) adapted to cool at least a portion of an internal combustion engine (18), the cooling system valve (24) being adapted to be located between the radiator (14) and the coolant passage (16), as seen in an intended direction of flow from the radiator (14) to the coolant passage (16). The cooling system valve (24) is adapted to automatically assume each one of at least the following conditions: —an open condition, allowing coolant transport from the radiator (14) towards the coolant passage (16) via the cooling system valve (24), and —a closed condition, preventing coolant transport in a direction from the coolant passage (16) towards the radiator (14) via the cooling system valve (24).

公开(公告)号：US20200019196A1

公开(公告)日：2020-01-16

申请号：US16506036

申请日：2019-07-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takaaki TOKURA ,  Katsumi KONO ,  Masato KAIGAWA ,  Masato MATSUBARA ,  Hitoshi MATSUNAGA ,  Akira HINO

IPC: G05D16/20 ,  F16K31/36 ,  F16H61/4069

Abstract: A control apparatus for controlling a linear solenoid by controlling a driving current supplied to the linear solenoid through a feedback control. The feedback control is executed by a feedback control system having parameters that are determined in accordance with an ILQ design method. In a frequency characteristic of a gain of a transfer function representing a ratio of an output to a disturbance in the feedback control system, the gain is lower than 0[dB] throughout all frequency ranges.

公开(公告)号：US10273989B2

公开(公告)日：2019-04-30

申请号：US15529117

申请日：2015-11-25

Applicant: Rotork Fluid Systems S.r.l.

Inventor： Pier Paolo Paradiso ,  Marco Borselli ,  Nicola Batistoni ,  Stefano Vettori ,  Anselmo Nicolini

IPC: F15B15/16 ,  F16K31/363 ,  F16K31/143 ,  F15B15/06 ,  F15B15/22 ,  F16K31/14 ,  F16K31/36

Abstract: A valve actuator device includes a supporting body, a driving shaft, and a fluid cylinder having a body connected to one side of the supporting body. The cylinder has a rod that controls rotation of a driving arm rigidly connected to the driving shaft. Linear movement of the rod is converted into rotation of the driving arm by engagement of a cam-follower pin carried by the rod within a slot formed in the driving arm. The slot is formed in an insert that constitutes an element separate from the driving arm body and that is received and held within a seat of the driving arm body. Thus, a single main body for the driving arm is provided, having a plurality of inserts for selective mounting within the seat and are differentiated from one another in the dimensions and shape of the slot and/or in the material of the insert.

公开(公告)号：US20190048900A1

公开(公告)日：2019-02-14

申请号：US16100240

申请日：2018-08-10

Applicant: Hamilton Sundstrand Corporation

Inventor： Piotr Kozlowski ,  Piotr Sawicki

IPC: F15B13/043 ,  F16K31/36

Abstract: The present disclosure relates to a servovalve assembly comprising a pair of opposed nozzles spaced apart by a first gap. A control element positioned in the first gap (G) between the pair of opposed nozzles. Each nozzle has an outlet opening. The control element has a central control portion and two resiliently deformable end portions at opposite ends of the central control portion. The central control portion is perpendicular to a central axis (C) of each nozzle outlet opening. The control element is configured such that the two resiliently deformable end portions elastically deform when the control element is placed under tension by a force applied parallel to the central control portion, so as to move the control element in a direction parallel to the central axis (C) of each nozzle outlet opening.

公开(公告)号：US20180094650A1

公开(公告)日：2018-04-05

申请号：US15286135

申请日：2016-10-05

Applicant: Caterpillar Inc.

Inventor： David J. Lomax ,  Joshua D. Callaway

IPC: F15B13/08 ,  F16K37/00 ,  G05D7/06 ,  F16K31/36

CPC classification number: F15B13/0871 ,  F16K31/36 ,  F16K37/0083 ,  G05D7/005 ,  G05D7/0635

Abstract: A system and method for detecting uncommanded positioning of at least one valve spool in a plurality of valve spools and for stopping fluid flow to a plurality of hydraulic actuators fluidly connected to the plurality of valve spools is disclosed. The method may comprise receiving a signal fluid pressure detected in a signal passageway, identifying whether at least one activation command is currently enabled, and stopping the flow of fluid to the plurality of hydraulic actuators if no activation command is enabled for any of the plurality of valve spools, and the signal fluid pressure when detected (1) upstream of the plurality of valve spools is greater than a first threshold or (2) downstream of the plurality of valve spools is less than a second threshold.

公开(公告)号：US09400004B2

公开(公告)日：2016-07-26

申请号：US13306940

申请日：2011-11-29

Applicant: Joseph R. Monkowski ,  Adam J. Monkowski ,  Jialing Chen ,  Tao Ding

Inventor： Joseph R. Monkowski ,  Adam J. Monkowski ,  Jialing Chen ,  Tao Ding

IPC: F16K31/12 ,  F16K31/36 ,  F15D1/02 ,  G05D16/20 ,  G05D7/06 ,  G01F25/00

CPC classification number: F15D1/025 ,  G01F25/003 ,  G01F25/0053 ,  G05D7/0635 ,  G05D16/202 ,  Y10T137/0396 ,  Y10T137/8158

Abstract: An apparatus to measure the transient response of a mass flow controller (MFC). The size of a variable orifice, upstream of the MFC, is controlled such that the pressure between the orifice and the MFC is held constant during the entire time that the MFC is going through its transient response. The known relationship between the size of the orifice and the flow through it allows a determination of the transient response of the MFC.

Abstract translation: 一种测量质量流量控制器（MFC）的瞬态响应的装置。 控制MFC上游的可变孔口的尺寸，使得孔口和MFC之间的压力在MFC经历其瞬态响应的整个时间内保持恒定。 孔口的尺寸和通过其的流动之间的已知关系允许确定MFC的瞬态响应。

公开(公告)号：US09132842B2

公开(公告)日：2015-09-15

申请号：US13710984

申请日：2012-12-11

Applicant: Caterpillar Inc.

Inventor： Cory A. Brown

IPC: A01M7/00 ,  B60P3/30 ,  E01H1/10 ,  F16K17/00 ,  F16K31/12 ,  F16K31/36 ,  E03B11/00 ,  F17D1/00 ,  B61C17/02

CPC classification number: B61C17/02 ,  Y10T137/6858 ,  Y10T137/6866 ,  Y10T137/6873 ,  Y10T137/7727 ,  Y10T137/7784 ,  Y10T137/7785

Abstract: A fuel supply arrangement adapted for use with a locomotive system. The fuel supply arrangement includes a flow line to supply the fuel from a tender car to an engine car. Further, a quick disconnect coupling is provided on the flow line. A first control system is provided on the flow line configured to stop the supply of the fuel in an event of breaking of the flow line.

Abstract translation: 适于与机车系统一起使用的燃料供应装置。 燃料供应装置包括用于将来自招标车的燃料供应到发动机汽车的流动管线。 此外，在流动管线上提供快速断开连接。 在流路线上设置第一控制系统，该流路线在流路断裂的情况下停止燃料的供给。

公开(公告)号：US09022064B2

公开(公告)日：2015-05-05

申请号：US13791602

申请日：2013-03-08

Applicant: David Deng

Inventor： David Deng

IPC: F16K31/36 ,  F23C1/00 ,  F23N1/00

CPC classification number: F23C1/00 ,  F23N1/005 ,  F23N2023/38 ,  F23N2035/14 ,  F23N2035/20 ,  F23N2035/24 ,  Y10T137/7768 ,  Y10T137/7795 ,  Y10T137/86815

Abstract: A heater assembly can be used with a gas appliance. The gas appliance can be a dual fuel appliance for use with one of a first fuel type or a second fuel type different than the first. The heater assembly can include a fuel regulator valve including a main pressure regulator to regulate the fuel pressure, at least one auxiliary pressure regulator, a first fuel source connection for connecting the first fuel type to the heater assembly, and a second fuel source connection for connecting the second fuel type to the heater assembly. The one or more auxiliary pressure regulators introduce a backline pressure to the main pressure regulator, thereby adjusting the fuel pressure to fall within a predetermined range.

Abstract translation: 加热器组件可以与燃气器具一起使用。 燃气器具可以是与不同于第一燃料类型的第一燃料类型或第二燃料类型中的一种一起使用的双燃料器具。 加热器组件可以包括燃料调节阀，其包括用于调节燃料压力的主压力调节器，至少一个辅助压力调节器，用于将第一燃料类型连接到加热器组件的第一燃料源连接和用于 将第二燃料类型连接到加热器组件。 一个或多个辅助压力调节器向主压力调节器引入后排压力，由此调节燃料压力以落在预定范围内。