公开(公告)号：EP3444461A1

公开(公告)日：2019-02-20

申请号：EP18188319.0

申请日：2018-08-09

申请人： Meccanotecnica Umbra S.p.A. ,  Sei Servizi Per L'economia E Per L'ingegneria Srl

发明人： BORASSO, Massimiliano ,  CATALANO, Ignazio ,  VITTORINI, Stefano

IPC分类号： F01P7/16

摘要： A thermostat (1) for cooling system of an internal combustion engine (100) comprises a sensitive element (4) comprising a capsule (40) that contains a sensitive material (5) that changes its volume when it reaches a threshold temperature, an actuation rod (8) associated to the sensitive element (5) and connected to a shutter (3) suitable for closing/opening a flow of coolant from the radiator (104) towards the engine (100) of the vehicle; and cooling means (R) coupled with the sensitive element (4) to cool the sensitive material (5), delaying the opening of the shutter (3) of the thermostat valve (2), in such a way as to stabilize the coolant at a temperature higher than the threshold temperature of the sensitive material.

公开(公告)号：EP3444461B1

公开(公告)日：2020-03-11

申请号：EP18188319.0

申请日：2018-08-09

申请人： Meccanotecnica Umbra S.p.A. ,  SEI - SERVIZI PER L'ECONOMIA E PER L'INGEGNERIA SRL

发明人： BORASSO, Massimiliano ,  CATALANO, Ignazio ,  VITTORINI, Stefano

IPC分类号： F01P7/16

公开(公告)号：EP3194706A2

公开(公告)日：2017-07-26

申请号：EP14777838.5

申请日：2014-08-14

申请人： Meccanotecnica Umbra S.p.A.

发明人： D'ORAZIO, Nunzio ,  CATALANO, Ignazio

IPC分类号： E21B21/02 ,  E21B17/05 ,  F16L27/08

CPC分类号： E21B17/05 ,  E21B21/02 ,  F16L27/082

摘要： Washpipe joint (1) for an oil drilling plant comprising a fixed sleeve (2) adapted to be connected to a fixed conduit (3) for feeding the drilling fluid, a rotating sleeve (4) adapted to be connected to a rotating conduit (5) integral with a drilling set, and a pair of sealing rings (27, 28) integral with the fixed sleeve (2) and with the rotating sleeve (4), respectively, and cooperating with each other sliding axially under the thrust of elastic means (40) to form the seal between the fixed sleeve (2) and the rotating sleeve (4), characterized in that the sealing rings (27, 28) are arranged externally coaxial to a main conduit (60) defined by respective internal conduits (2a, 4a) coaxial and axially facing each other of the fixed and movable sleeves (2, 4) and are touched by a fraction of the flow rate of the drilling fluid through an auxiliary branch (64) connected in parallel to the main conduit (60); the main conduit (60) is convergent-divergent, and the auxiliary branch communicates with an area of minimum section of the main conduit (60) to facilitate the recall of the fraction of flow rate in the main conduit (60).

摘要翻译： 一种用于石油钻井设备的冲洗管接头（1），其包括适于连接到用于供给钻井液的固定导管（3）的固定套筒（2），适于连接到旋转导管（5）的旋转套筒（4） ）与钻孔装置成一体，以及一对分别与固定套筒（2）和旋转套筒（4）一体形成的密封环（27,28），并且在弹性装置的推力下彼此协作地轴向滑动 （2）和旋转套筒（4）之间形成密封，其特征在于，密封环（27,28）与由相应的内导管（60）限定的主导管（60） 2a，4a）同轴且轴向面向固定套和可动套（2,4）的彼此，并且通过平行于主管道（2,4）连接的辅助分支（64）接触钻井流体的一部分流量 60）; 主管道60是会聚 - 发散的，并且辅助分支与主管道60的最小部分的区域连通以便于回收主管道60中的流量部分。