公开(公告)号：US09353883B2

公开(公告)日：2016-05-31

申请号：US14134138

申请日：2013-12-19

Applicant: APEX VALVES LIMITED

Inventor： David Gordon Arthur Crichton

IPC: F16K15/14 ,  F16K31/385

CPC classification number: F16K31/385 ,  F16K15/142 ,  Y10T137/7837 ,  Y10T137/7896

Abstract: A liquid pressure control valve includes at least one O-ring seal mounted, in a first sealing position, on a sealing section of a first component thereof to seal a junction between that first component and a second component which junction controls a bleed passage between. The first component is threadingly engaged within the second component. The valve includes a chamber intended to contain liquid up to a required pressure during operation of the valve. The valve includes at least one annular impingement element mounted about a reduced diameter section, relative to the sealing section, of the first component and adjacent thereto with the impingement element. The impingement element includes a bore that tapers away from the O-ring seal, whereby with a pressure in excess of the required pressure acting on the O-ring it will be compressed at least partly into the bore of the impingement element and away from the O ring's first sealing position to take up a second non-sealing position and, with release of the excess pressure, return to its first sealing position.

Abstract translation: 液压控制阀包括至少一个O形环密封件，该密封件在第一密封位置安装在其第一部件的密封部分上，以密封该第一部件与第二部件之间的连接部，该连接部分控制两者之间的排放通道。 第一部件螺纹地接合在第二部件内。 该阀包括用于在阀操作期间容纳液体达到所需压力的腔室。 阀包括至少一个环形冲击元件，该环形冲击元件围绕第一部件的相对于密封部分的减小直径部分安装并且与冲击元件相邻。 冲击元件包括从O形环密封件逐渐变细的孔，由此超过作用在O形环上的所需压力的压力将至少部分地压缩到冲击元件的孔中并且远离 O形圈的第一密封位置以承受第二非密封位置，并且随着过剩压力的释放而返回其第一密封位置。

公开(公告)号：US20200284354A1

公开(公告)日：2020-09-10

申请号：US16646308

申请日：2019-02-22

Applicant: APEX VALVES LIMITED

Inventor： David Gordon Arthur CRICHTON

IPC: F16K1/36 ,  F16K1/46 ,  F16K21/18 ,  F16K31/26

Abstract: A liquid control valve including a body comprising an inlet port, an outlet port, and an interior chamber, the body defining a liquid passageway between the inlet and outlet ports. Also included is a plunger comprising a groove provided on an external wall, the plunger being configured to reciprocate within the interior chamber of the body between a first position where the valve is closed and a second position where the valve is open. Also provided is a sealing arrangement within the groove configured to seal between the plunger and the interior chamber of the body. The sealing arrangement includes a first sealing element on the external wall of the plunger and spaced apart from an inner wall of the internal chamber, and a second sealing element on the inner wall of the internal chamber and spaced apart from the external wall of the plunger.

公开(公告)号：US09605764B2

公开(公告)日：2017-03-28

申请号：US14382448

申请日：2013-02-27

Applicant: APEX VALVES LIMITED

Inventor： David Gordon Arthur Crichton

IPC: F16K31/18 ,  F16K7/12 ,  F16K31/383 ,  F16K31/385 ,  F16K31/26 ,  F16K33/00

CPC classification number: F16K7/12 ,  F16K31/26 ,  F16K31/3835 ,  F16K31/3855 ,  F16K33/00 ,  Y10T137/7465

Abstract: A float or a near neutral buoyancy weight operated liquid pressure control valve includes a body which together with an end cap form a cavity and retain a diaphragm therein. A back-pressure chamber is formed between the end cap and the diaphragm and the diaphragm includes a seal section which seats on an inlet port. The diaphragm seal also separates the inlet from an outlet formed in the body. A float support arm reciprocally operates a valve opening and closing control pin mounted in an associated bleed passage formed longitudinally through a control pin mounting. In an open mode the bleed passage vents the chamber. In a closed mode the pressure in the chamber displaces the diaphragm to close the valve. A slide is coupled to the diaphragm so as to be displaced therewith and prevent excessive pressure to distort the diaphragm once the seal closes on port.

公开(公告)号：US11268619B2

公开(公告)日：2022-03-08

申请号：US16646308

申请日：2019-02-22

Applicant: APEX VALVES LIMITED

Inventor： David Gordon Arthur Crichton

IPC: F16K1/36 ,  F16K1/46 ,  F16K31/26 ,  F16J15/00 ,  F16K21/18 ,  F16J9/20 ,  F16J15/32 ,  F16K1/12

Abstract: A liquid control valve including a body comprising an inlet port, an outlet port, and an interior chamber, the body defining a liquid passageway between the inlet and outlet ports. Also included is a plunger comprising a groove provided on an external wall, the plunger being configured to reciprocate within the interior chamber of the body between a first position where the valve is closed and a second position where the valve is open. Also provided is a sealing arrangement within the groove configured to seal between the plunger and the interior chamber of the body. The sealing arrangement includes a first sealing element on the external wall of the plunger and spaced apart from an inner wall of the internal chamber, and a second sealing element on the inner wall of the internal chamber and spaced apart from the external wall of the plunger.

公开(公告)号：US20150184763A1

公开(公告)日：2015-07-02

申请号：US14382448

申请日：2013-05-27

Applicant: APEX VALVES LIMITED

Inventor： David Gordon Arthur Crichton

IPC: F16K7/12 ,  F16K33/00 ,  F16K31/26

CPC classification number: F16K7/12 ,  F16K31/26 ,  F16K31/3835 ,  F16K31/3855 ,  F16K33/00 ,  Y10T137/7465

Abstract: A float or a near neutral buoyancy weight (neither depicted) operated liquid pressure control valve includes a body (1A) which together with an end cap (1B) form a cavity and retain a diaphragm (10) therein. A back-pressure chamber (4) is formed between the end cap (1B) and the diaphragm (10) and the diaphragm (10) includes a seal section (10F) which seats on an inlet port (6) formed by a wall (5) projecting into the cavity. The diaphragm (10) seal (10F) also separates the inlet (2) from an outlet (3) formed in the body (1A). A float support arm (7) reciprocally operates a valve opening and closing control pin (8) mounted in an associated bleed passage (9)formed longitudinally through a control pin (8) mounting (16). Mounting (16) is fixed to end cap (1B) and extends through the diaphragm (10), the bleed passage (9) thus joining the inlet (2) to the chamber (4). In an open mode (arm 7 lowered) the bleed passage (9) also vents the chamber (4). In a closed mode (arm 7 raised) owing to the greater area of the diaphragm (10) presented to the chamber (4) than to the inlet (2) the inlet pressure in the chamber (4) displaces the diaphragm (10) to close the valve. A slide (12) is coupled to diaphragm (10) as to be displaced therewith and prevent excessive inlet pressure distorting the diaphragm (10) once the seal (10F) closes on port (6). To that end the slide (12) is a working fit within the bore (1G) of the body (1A) and abuts against a stop (11) formed by shoulder (14)on bore (1G) as the valve closes.

Abstract translation: 浮子或近中性浮力重量（未示出）操作的液压控制阀包括与端盖（1B）一起形成空腔并在其中保持隔膜（10）的主体（1A）。 背压室（4）形成在端盖（1B）和膜片（10）之间，隔膜（10）包括密封部分（10F），该密封部分位于由壁形成的入口（6）上 5）突出到空腔中。 隔膜（10）密封件（10F）还将入口（2）与形成在主体（1A）中的出口（3）分开。 浮子支撑臂（7）往复地操作安装在纵向穿过安装（16）的控制销（8）的相关联的排放通道（9）中的开阀和关闭控制销（8）。 安装件（16）固定在端盖（1B）上并延伸通过隔膜（10），排放通道（9）从而将入口（2）连接到室（4）。 在打开模式（臂7降低）时，排放通道（9）也排出腔室（4）。 由于与入口（2）相比，提供给腔室（4）的隔膜（10）的面积大于封闭模式（臂7升高），腔室（4）中的入口压力将隔膜（10）移位到 关闭阀门。 一旦密封件（10F）在端口（6）上关闭，滑动件（12）连接到隔膜（10）以便与其一起移动并防止过大的入口压力使膜片（10）变形。 为此，滑块（12）在主体（1A）的孔（1G）内是工作配合，并且当阀关闭时，滑动件（12）抵靠由孔（1G）上的肩部（14）形成的止挡件（11）。

公开(公告)号：US20140174566A1

公开(公告)日：2014-06-26

申请号：US14134138

申请日：2013-12-19

Applicant: Apex Valves Limited

Inventor： David Gordon Arthur Crichton

IPC: F16K17/18

CPC classification number: F16K31/385 ,  F16K15/142 ,  Y10T137/7837 ,  Y10T137/7896

Abstract: A liquid pressure control valve includes at least one O-ring seal mounted, in a first sealing position, on a sealing section of a first component thereof to seal a junction between that first component and a second component which junction controls a bleed passage between. The first component is threadingly engaged within the second component. The valve includes a chamber intended to contain liquid up to a required pressure during operation of the valve. The valve includes at least one annular impingement element mounted about a reduced diameter section, relative to the sealing section, of the first component and adjacent thereto with the impingement element. The impingement element includes a bore that tapers away from the O-ring seal, whereby with a pressure in excess of the required pressure acting on the O-ring it will be compressed at least partly into the bore of the impingement element and away from the O ring's first sealing position to take up a second non-sealing position and, with release of the excess pressure, return to its first sealing position.

Abstract translation: 液压控制阀包括至少一个O形环密封件，该密封件在第一密封位置安装在其第一部件的密封部分上，以密封该第一部件与第二部件之间的连接部，该连接部分控制两者之间的排放通道。 第一部件螺纹地接合在第二部件内。 该阀包括用于在阀操作期间容纳液体达到所需压力的腔室。 阀包括至少一个环形冲击元件，该环形冲击元件围绕第一部件的相对于密封部分的减小直径部分安装并且与冲击元件相邻。 冲击元件包括从O形环密封件逐渐变细的孔，由此超过作用在O形环上的所需压力的压力将至少部分地压缩到冲击元件的孔中并且远离 O形圈的第一密封位置以承受第二非密封位置，并且随着过剩压力的释放而返回其第一密封位置。