公开(公告)号：US07004452B2

公开(公告)日：2006-02-28

申请号：US10670942

申请日：2003-09-25

Applicant: Vijay Chatufale

Inventor： Vijay Chatufale

IPC: F16K25/00

CPC classification number: F16K3/0227

Abstract: A method of sealing a valve engaging member to a valve body about a borehole and structure thereof. Two seal members disposed on either side of the valve engaging member include a seat member adjacent the valve engaging member and a pocket insert adjacent the seat member. The pocket inserts fit within first and second pockets of the valve body. A C-shaped seal ring is disposed between the seat member and pocket insert, and two U-shaped seal rings are disposed between the pocket insert and the valve body. One of the U-shaped seal rings between the pocket insert and the valve body functions both as a radial seal ring and a retaining ring.

Abstract translation: 一种将阀接合构件围绕钻孔密封到阀体的方法及其结构。 设置在阀接合构件的任一侧上的两个密封构件包括邻近阀接合构件的座构件和与座构件相邻的凹槽插入件。 口袋插入件配合在阀体的第一和第二袋内。 C形密封环设置在座椅构件和口袋插入件之间，并且在口袋插入件和阀体之间设置两个U形密封环。 口袋插入件和阀体之间的U形密封环之一用作径向密封环和保持环。

公开(公告)号：US06487960B1

公开(公告)日：2002-12-03

申请号：US09925435

申请日：2001-08-09

Applicant: Vijay Chatufale

Inventor： Vijay Chatufale

IPC: F16J1518

CPC classification number: F15B13/10

Abstract: A hydraulic actuator for operating a gate valve. The actuator includes a stationary piston coupled to an actuator housing and a moveable cylinder disposed proximate the piston exterior surface. The piston includes a hollow interior portion adapted to house a manual override mechanism. The piston includes a hydraulic pressure line extending between the piston bottom surface and the side of a cap region in the piston. The manual override mechanism includes an override stem disposed within the piston interior portion, the override stem abutting the cylinder. An optional visual indicator stem may be disposed within the piston, coupled to the cylinder

Abstract translation: 用于操作闸阀的液压致动器。 致动器包括联接到致动器壳体的静止活塞和靠近活塞外表面设置的可移动气缸。 活塞包括适于容纳手动超控机构的中空内部部分。 活塞包括在活塞底表面和活塞中的帽区域的侧面之间延伸的液压管线。 手动超控机构包括设置在活塞内部部分内的超控杆，超越杆邻接气缸。 可选的视觉指示杆可以设置在活塞内，联接到气缸

公开(公告)号：US06783107B2

公开(公告)日：2004-08-31

申请号：US10194871

申请日：2002-07-12

Applicant: Vijay Chatufale

Inventor： Vijay Chatufale

IPC: F18K3112

CPC classification number: F15B21/006 ,  F15B1/24 ,  F15B15/1433 ,  F15B2201/21 ,  F15B2201/312 ,  F15B2201/32 ,  F15B2201/411

Abstract: A hydraulic actuator (20) with a built-in hydrostatic pressure compensator (111) is provided. The actuator (20) includes an actuator housing (30), a compensator cylinder portion (86), a compensator piston portion (94), a first compensator piston chamber (98), a second compensator piston chamber (103), a hydraulic port (106), and a hydraulic via (108). The compensator cylinder portion (86) is located within the actuator housing (30), is fixed relative to the housing (30), and has a compensator cylinder internal chamber (88) formed therein. The compensator piston portion (94) slidably fits within the compensator cylinder internal chamber (88). The first compensator piston chamber (98) is formed between a first side (101) of the compensator piston portion (94) and the compensator cylinder portion (86). The second compensator piston chamber (103) is formed between a second side (102) of the compensator piston portion (94) and the compensator cylinder portion (86). The hydraulic port (106) is routed through the housing (30) and opens to the first compensator piston chamber (98). The hydraulic via (108) fluidly couples the second compensator piston chamber (103) with a first housing internal chamber (82).

Abstract translation: 提供具有内置静水压力补偿器（111）的液压致动器（20）。 执行器（20）包括致动器壳体（30），补偿器缸部分（86），补偿器活塞部分（94），第一补偿器活塞室（98），第二补偿器活塞室（103） （106）和液压通路（108）。 补偿缸部（86）位于致动器壳体（30）内，相对于壳体（30）固定，并且在其中形成有补偿缸内部室（88）。 补偿器活塞部分（94）可滑动地配合在补偿缸内部室88内。 第一补偿器活塞室（98）形成在补偿器活塞部（94）的第一侧（101）和补偿缸部（86）之间。 第二补偿器活塞室（103）形成在补偿器活塞部（94）的第二侧（102）与补偿缸部（86）之间。 液压端口（106）被引导通过壳体（30）并且通向第一补偿器活塞室（98）。 液压通孔（108）将第二补偿器活塞室（103）与第一壳体内部腔室（82）流体连接。

公开(公告)号：US06664572B2

公开(公告)日：2003-12-16

申请号：US09911148

申请日：2001-07-23

Applicant: Vijay Chatufale

Inventor： Vijay Chatufale

IPC: F16K2500

CPC classification number: F16K3/207 ,  F16K3/0227

Abstract: Valve sealing assemblies and methods of sealing a valve engaging member to a valve body. A first seat member is fixedly disposed within a valve body pocket. Two seal rings are disposed between a valve pocket and a pocket insert and a seal ring is disposed between the pocket insert and a seat member to provide a downstream seal. A built-in lip on one of the seat members and an accommodating groove on the other seat member prevent debris from entering the space between the two seat members. A retainer ring on the exterior annular surface of pocket insert seat member retains the pocket insert within valve body. A retainer ring on the exterior annular surface of the seat member retains the seat member within the pocket insert.

Abstract translation: 阀密封组件和将阀接合构件密封到阀体的方法。 第一座椅构件固定地设置在阀体口袋内。 两个密封环设置在阀口和口袋插入件之间，并且密封环设置在袋插入件和座构件之间以提供下游密封。 一个座椅构件上的内置唇缘和另一个座椅构件上的容纳槽防止碎片进入两个座椅构件之间的空间。 口袋插入座构件的外环形表面上的保持环将袋插入物保持在阀体内。 在座椅构件的外部环形表面上的保持环将座椅构件保持在口袋插入件内。

公开(公告)号：US20050067599A1

公开(公告)日：2005-03-31

申请号：US10670942

申请日：2003-09-25

Applicant: Vijay Chatufale

Inventor： Vijay Chatufale

IPC: F16K3/02 ,  F16K25/00

CPC classification number: F16K3/0227

Abstract: A method of sealing a valve engaging member to a valve body about a borehole and structure thereof. Two seal members disposed on either side of the valve engaging member include a seat member adjacent the valve engaging member and a pocket insert adjacent the seat member. The pocket inserts fit within first and second pockets of the valve body. A C-shaped seal ring is disposed between the seat member and pocket insert, and two U-shaped seal rings are disposed between the pocket insert and the valve body. One of the U-shaped seal rings between the pocket insert and the valve body functions both as a radial seal ring and a retaining ring.

Abstract translation: 一种将阀接合构件围绕钻孔密封到阀体的方法及其结构。 设置在阀接合构件的任一侧上的两个密封构件包括邻近阀接合构件的座构件和与座构件相邻的凹槽插入件。 口袋插入件配合在阀体的第一和第二袋内。 C形密封圈设置在座椅构件和口袋插入件之间，并且在口袋插入件和阀体之间设置两个U形密封环。 口袋插入件和阀体之间的U形密封环之一用作径向密封环和保持环。

公开(公告)号：US06659419B2

公开(公告)日：2003-12-09

申请号：US10027060

申请日：2001-12-26

Applicant: Vijay Chatufale

Inventor： Vijay Chatufale

IPC: F16K3100

CPC classification number: F16K3/0254 ,  F16K31/143

Abstract: A modular portion (71) of a hydraulic valve actuator (64) comprises a hollow cylinder portion (74), a piston (78), a cylinder head portion (80), and a piston retainer portion (88). The piston (78) is located in the cylinder portion (74), and the piston (78) is adapted to slidably fit in the cylinder portion (74). The cylinder head portion (80) closes a second end (110) of the cylinder portion (74). The piston retainer portion (88) is located at an interior surface (134) of the cylinder portion (74) and at a first end (106) of the cylinder portion (74). Part of the piston retainer portion (88) extends radially inward relative to the interior surface (134) of the cylinder portion (74) farther than a portion of the piston (78) such that the piston (78) cannot slide completely past the piston retainer portion (88). Thus, the piston retainer portion (88) keeps the piston (78) within the cylinder portion (74) when the actuator (64) is disassembled for repair or replacement of seals, and when the modular actuator portion (71) is operably assembled.