公开(公告)号：US09777644B2

公开(公告)日：2017-10-03

申请号：US14825566

申请日：2015-08-13

Applicant: SNECMA

Inventor： Regis Michel Paul Deldalle ,  Anne Marie Cecile Barreau ,  Jean-Marie Brocard ,  Pierre Charles Mouton

IPC: G05D11/00 ,  F02C9/26 ,  F02M51/06

CPC classification number: F02C9/263 ,  F02M51/0653 ,  F02M61/168 ,  F02M63/0012 ,  F02M69/18

Abstract: A fuel metering unit including a movable element including at least one fuel passage section opening upstream towards a fuel supply conduit and opening downstream towards a conduit of use through a metering slot with a flared profile having a narrow passage section flaring as far as a wide passage section, the movable element being able to be moved with respect to a fixed element between a low flow rate position in which the metering slot is for a large part obstructed and a high flow rate position in which the metering slot is for a large part exposed, the metering slot being made in the fixed element or in the movable element and its obstruction being obtained by covering the slot with a wall of the movable element or of the fixed element.

公开(公告)号：US20170044993A1

公开(公告)日：2017-02-16

申请号：US14825566

申请日：2015-08-13

Applicant: SNECMA

Inventor： Regis Michel Paul Deldalle ,  Anne Marie Cecile Barreau ,  Jean-Marie Brocard ,  Pierre Charles Mouton

IPC: F02C9/26

CPC classification number: F02C9/263 ,  F02M51/0653 ,  F02M61/168 ,  F02M63/0012 ,  F02M69/18

Abstract: A fuel metering unit including a movable element including at least one fuel passage section opening upstream towards a fuel supply conduit and opening downstream towards a conduit of use through a metering slot with a flared profile having a narrow passage section flaring as far as a wide passage section, the movable element being able to be moved with respect to a fixed element between a low flow rate position in which the metering slot is for a large part obstructed and a high flow rate position in which the metering slot is for a large part exposed, the metering slot being made in the fixed element or in the movable element and its obstruction being obtained by covering the slot with a wall of the movable element or of the fixed element.

Abstract translation: 一种燃料计量单元，包括可移动元件，所述可移动元件包括至少一个燃料通道部分，所述至少一个燃料通道部分朝向燃料供应管道上游打开，并通过计量槽向下游朝向使用的导管打开，其具有扩张形状，其具有狭窄的通道部分， 所述可移动元件能够相对于固定元件移动，所述可移动元件能够在其中计量槽被阻塞的较大部分的低流量位置和高流量位置之间移动，其中所述计量槽用于大部分暴露 ，计量槽被制成在固定元件或可移动元件中，并且其阻塞物通过用可移动元件或固定元件的壁覆盖槽来获得。