公开(公告)号：US09518664B2

公开(公告)日：2016-12-13

申请号：US14797211

申请日：2015-07-13

Applicant: ROTEX MANUFACTURERS AND ENGINEERS PRIVATE LIMITED

Inventor： Ajit Kothadia ,  Amit Shah

IPC: F16K5/06

CPC classification number: F16K5/0663 ,  F16K5/0668 ,  Y10T137/0508

Abstract: A rotary ball valve with an improved sealing arrangement, comprising of a valve body and a rotary ball, the rotary ball valve has a plurality of combination sealing arrangement comprising of a polarized combination cavity having a non-parallel slot and an extended groove, an add-on sealing ring and a compatible seat ring having a plurality of non-parallel concentric surfaces, when assembled. The compatible seat ring has a compatible profile so as to create a positive isolation by a surface contact between the add-on sealing ring and the extended groove and create another positive isolation by a surface contact between the add-on sealing ring and the compatible seat ring. The positive isolation prevents leakage during thermal cycling, pressure variations. The non-parallel slot and the compatible sealing ring therein prevents dislodgement of the seat ring; even in double block and bleed condition.

Abstract translation: 一种具有改进的密封装置的旋转球阀，包括阀体和旋转球，所述旋转球阀具有多个组合密封装置，其包括具有非平行槽和延伸槽的偏振组合腔， - 在组装时具有多个不平行的同心表面的密封环和具有多个不平行的同心表面的兼容的座圈。 兼容的座环具有相容的轮廓，以便通过附加密封环和延伸槽之间的表面接触产生正隔离，并通过附加密封环和兼容座之间的表面接触产生另一个正隔离 环。 正隔离防止热循环期间的泄漏，压力变化。 非平行的狭槽和相容的密封环防止座圈的移动; 即使在双重阻塞和出血状况。

公开(公告)号：US09709077B2

公开(公告)日：2017-07-18

申请号：US15002414

申请日：2016-01-21

Applicant: ROTEX Manufacturers and Engineers Private Limited

Inventor： Amit Shah ,  Ajit Kothadia

IPC: F16L55/04 ,  F15B1/24

CPC classification number: F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/50

Abstract: A piston type hydro pneumatic accumulator with internal leak detection, having a gas chamber and a liquid chamber, the piston type hydro pneumatic accumulator comprising a cylindrical barrel, a floating piston, a gas end cover, a liquid end cover, a leakage detection construction having a first cylindrical channel reducing to a conical channel and further reducing to a second cylindrical channel, a floater device, the gas end cover and the liquid end cover hermetically disposed into the cylindrical barrel, a first pressure meter disposed so as to measure a pressure in the first cylindrical channel and a second pressure meter disposed so as to measure the pressure in the second cylindrical channel, the readings in the two pressure meters used for inferring a gas leakage or a liquid leakage. Also deployable a first pressure switch sensing a pressure P1 and a second pressure switch sensing a pressure P2, the output of the first pressure switch and the second pressure switch connected to a programmable logic controller, programmed so as to activate a liquid circuit for topping up of the liquid if P1>P2, activate a gas circuit for re-charging of gas if P1=P2≠0, produce a visual and or an audio signal or a combination thereof, or initiate any other corrective action.

公开(公告)号：US20170175778A1

公开(公告)日：2017-06-22

申请号：US15002414

申请日：2016-01-21

Applicant: ROTEX Manufacturers and Engineers Private Limited

Inventor： Amit Shah ,  Ajit Kothadia

IPC: F15B1/24

CPC classification number: F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/50

Abstract: A piston type hydro pneumatic accumulator with internal leak detection, having a gas chamber and a liquid chamber, the piston type hydro pneumatic accumulator comprising a cylindrical barrel, a floating piston, a gas end cover, a liquid end cover, a leakage detection construction having a first cylindrical channel reducing to a conical channel and further reducing to a second cylindrical channel, a floater device, the gas end cover and the liquid end cover hermetically disposed into the cylindrical barrel, a first pressure meter disposed so as to measure a pressure in the first cylindrical channel and a second pressure meter disposed so as to measure the pressure in the second cylindrical channel, the readings in the two pressure meters used for inferring a gas leakage or a liquid leakage. Also deployable a first pressure switch sensing a pressure P1 and a second pressure switch sensing a pressure P2, the output of the first pressure switch and the second pressure switch connected to a programmable logic controller, programmed so as to activate a liquid circuit for topping up of the liquid if P1>P2, activate a gas circuit for re-charging of gas if P1=P2≠0, produce a visual and or an audio signal or a combination thereof, or initiate any other corrective action.