公开(公告)号：US20160146228A1

公开(公告)日：2016-05-26

申请号：US14949357

申请日：2015-11-23

申请人： Goodrich Actuation Systems SAS

发明人： Mikael Ras ,  Arnaud De La Chevasnerie

IPC分类号： F15B13/043 ,  F16K31/10 ,  F15B13/044 ,  F16K31/06

CPC分类号： F15B13/0436 ,  F15B13/044 ,  F16K31/0644 ,  F16K31/10

摘要： A jet pipe for a hydraulic servovalve is provided, comprising a body comprising a fluid inlet, a fluid outlet and a conduit in fluid communication with the fluid inlet and the fluid outlet, wherein said body is a single piece of material.

摘要翻译： 提供了一种用于液压伺服阀的喷射管，包括流体入口，流体出口和与流体入口和流体出口流体连通的导管的主体，其中所述主体是单件材料。

公开(公告)号：US11327005B2

公开(公告)日：2022-05-10

申请号：US16564079

申请日：2019-09-09

申请人： Goodrich Actuation Systems SAS

发明人： Karl Potier ,  Arnaud De La Chevasnerie

IPC分类号： G01N19/02

摘要： A twin-disc tribometer assembly includes a first sample drive shaft arranged to receive a first sample disc and a second sample drive shaft arranged to receive a second sample disc; a first drive motor configured to rotate the first drive shaft and a second motor arranged to rotate the second drive shaft. The first and second drive shafts are configured to be positioned relative to each other such that a sample disc mounted on the first drive shaft will make a point contact with a sample disc on the second drive shaft as the drive shafts rotate. The assembly is configured to allow the shafts to rotate relative to each other in a non-continuous reciprocating motion or a non-collinear motion where one sample disc is tilted with respect to the other.

公开(公告)号：US20180335114A1

公开(公告)日：2018-11-22

申请号：US15927202

申请日：2018-03-21

申请人： Goodrich Actuation Systems SAS

发明人： Arnaud De La Chevasnerie

IPC分类号： F16H25/22

CPC分类号： F16H25/2252 ,  F16H25/2006

摘要： An improved planetary roller screw mechanism is described comprising a screw having an outer thread; a nut disposed around and positioned coaxially with the screw, and a plurality of rollers that are disposed between the screw and the nut, each of said rollers being provided with an outer thread that engages with an outer thread of the screw and an inner thread of the nut. Each of said plurality of rollers has a thread profile that has at least a convex portion, and either one, or both of, said screw and said nut has/have a thread profile that has at least a portion that is concave. A method for making and assembling the improved planetary roller screw mechanism is also described.