公开(公告)号：EP3689534A1

公开(公告)日：2020-08-05

申请号：EP19211310.8

申请日：2019-11-25

Applicant: ROSEMOUNT AEROSPACE INC.

Inventor： JACOB, Robin ,  MAHAPATRA, Guru Prasad

IPC: B23P15/00 ,  B23K26/00 ,  B23K26/342 ,  B33Y80/00 ,  G01F1/46 ,  G01P5/165

Abstract: Disclosed is a process of manufacturing a pitot tube assembly (200) including: obtaining (10) a metal cylindrical tube (210) having a first axial portion (220) that is a first material blank for an assembly inlet portion (230) of the pitot tube assembly and a second axial portion (240) that is a second material blank for a body portion (250) of the pitot tube assembly; nesting (15) the first axial portion of the tube within a cylindrical graphite insert (260); nesting (20) the cylindrical graphite insert within a cylindrical sheath; constraining (25) axial motion of the insert; performing (30) laser scanning to the assembly inlet portion; and performing (35) additive manufacturing to the pitot tube assembly inlet portion.

公开(公告)号：EP3633387A1

公开(公告)日：2020-04-08

申请号：EP19201456.1

申请日：2019-10-04

Applicant: ROSEMOUNT AEROSPACE INC.

Inventor： JOHNSON, Paul Robert ,  JACOB, Robin ,  MAHAPATRA, Guru Prasad

IPC: G01P5/165 ,  B64D43/02

Abstract: A pitot tube (10) includes an outer tube (28) extending from a first tube end (62) to second tube end (64). The second tube end (64) defines a tip portion (36) of the pitot tube (10). A tube sleeve (30) is located inside of the outer tube (28) and defines a tube passage (34) extending from the first tube end (62) to the second tube end (64). A heating element is located between the outer tube (28) and the tube sleeve (30). The heating element is isolated from airflow into the tube passage (34). A method of forming a pitot tube (10) includes installing a heating element to an outer surface of a tube sleeve (30), the tube sleeve (30) defining a tube passage (34) of the pitot tube (10). The tube sleeve (30) is secured in an outer tube (28) such that the heating element is between the tube sleeve (30) and the outer tube (28) and is isolated from airflow through the tube passage (34).

公开(公告)号：EP3106881A1

公开(公告)日：2016-12-21

申请号：EP16175056.7

申请日：2016-06-17

Applicant: Rosemount Aerospace Inc.

Inventor： JACOB, Robin ,  MAHAPATRA, Guru Prasad ,  JOHNSON, Paul Robert

IPC: G01P5/165 ,  G01F1/46

CPC classification number: G01P5/165 ,  G01F1/46

Abstract: A pitot tube (10) includes a wall (12) that extends longitudinally along an axis (14). The wall (12) defines an inlet aperture (16) at a longitudinal end of the wall, an outlet aperture opposite the inlet aperture (16), an interior cavity extending from the inlet aperture (16) to an outlet aperture, a passage (22) extending through and perpendicular to the wall (12) having an outlet (30) along an exterior surface (26) of the wall (12), and an augmenting feature (32) configured to reduce a static pressure at the outlet (30) of the passage (22). In another embodiment, a wall (12) defines a passage (22) and an augmenting feature (32) that modifies a flow direction of fluid flowing across an outlet (30) of the passage (22) such that a static pressure of the fluid at the outlet (30) is reduced relative to the wall (12) without the augmenting feature (32).

Abstract translation: 皮托管（10）包括沿轴线（14）纵向延伸的壁（12）。 所述壁（12）在所述壁的纵向端部处限定入口孔（16），与所述入口孔（16）相对的出口孔，从所述入口孔（16）延伸到出口孔的内腔， 22），其沿着壁（12）的外表面（26）延伸并且垂直于具有出口（30）的壁（12），以及增强特征（32），其构造成减小出口（30）处的静压力 ）通道（22）。 在另一个实施例中，壁（12）限定通道（22）和增强特征（32），其改变流过通道（22）的出口（30）的流体的流动方向，使得流体的静压 在出口（30）处相对于壁（12）减小，而没有增强特征（32）。