公开(公告)号：US09222418B2

公开(公告)日：2015-12-29

申请号：US13500756

申请日：2010-09-30

Applicant: Nicolas Alain Bader ,  Frederic Brettes ,  Bastien Dore ,  Laurent Gilbert Yves Hodinot

Inventor： Nicolas Alain Bader ,  Frederic Brettes ,  Bastien Dore ,  Laurent Gilbert Yves Hodinot

IPC: F02C9/48 ,  F02C7/236 ,  F02C9/26 ,  F02K1/17

CPC classification number: F02C9/48 ,  F02C7/236 ,  F02C9/263 ,  F02K1/17

Abstract: A fuel feed circuit for an aeroengine, the circuit including a high-pressure pumping system including first and second positive displacement pumps, a hydraulic actuator, and a fuel metering unit. As a function of a position of a slide of the actuator, a feed orifice of the actuator may be connected to a high-pressure delivery orifice connected to an outlet of the second pump, or to a low-pressure delivery orifice connected to a low-pressure feed line. The fuel metering unit includes through sections, one of these through sections being connected to an outlet of the high-pressure pumping system and the other through section being connected to an outlet of the high-pressure pumping system and leading to a high-pressure pilot chamber of the hydraulic actuator.

Abstract translation: 一种用于航空发动机的燃料供给电路，该电路包括包括第一和第二容积式泵的高压泵送系统，液压致动器和燃料计量单元。 作为致动器的滑动位置的函数，致动器的进料孔可以连接到连接到第二泵的出口的高压输送孔，或连接到低压输送孔 压力进料管线。 燃料计量单元包括贯穿部分，这些通过部分中的一个连接到高压泵送系统的出口，另一个通过部分连接到高压泵送系统的出口，并通向高压引燃器 液压执行器的腔室。

公开(公告)号：US08991148B2

公开(公告)日：2015-03-31

申请号：US13087745

申请日：2011-04-15

Applicant: Bastien Dore ,  Loïc Pora

Inventor： Bastien Dore ,  Loïc Pora

IPC: F02C9/00 ,  F02C1/00 ,  F02C9/26 ,  F01D21/02 ,  F02C7/232

CPC classification number: F02C9/263 ,  F01D21/02 ,  F02C7/232 ,  F05D2260/601 ,  Y10T137/7837

Abstract: A jet pump (14) is inserted between the low-pressure pump and a high-pressure fuel pump (16). A fuel metering unit (20) includes a metering valve (22) which delivers a regulated fuel flow to a feed line (30), and a bypass valve (24) which diverts to a primary intake (14a) of the jet pump the excess fuel flow supplied by the high-pressure pump. An overspeed protection unit (50) includes a control element (54) of the bypass valve (24) which causes said to fully open in the event of an overspeed of the engine. A shutoff and pressurization checkvalve (42) is mounted on the feed line and controlled by a servo-valve (44) having a high-pressure port (44a) brought to the high fuel pressure, a low-pressure port brought to the pressure of the primary intake (14a) of the jet pump and an output setting the pressure in a control chamber (42a) of the shutoff valve (42) to a value between those prevailing at the high pressure and low pressure ports. In the event of overspeed, the restriction imposed by the jet pump causes a pressure rise at the primary intake of the jet pump, hence a pressure rise in the control chamber of the shutoff valve (42), favoring the closing thereof.

Abstract translation: 喷射泵（14）插入在低压泵和高压燃料泵（16）之间。 燃料计量单元（20）包括计量阀（22），其将调节的燃料流输送到进料管线（30），以及旁路阀（24），其转移到喷射泵的初级进料口（14a） 由高压泵供应的燃料流量。 超速保护单元（50）包括旁通阀（24）的控制元件（54），其在发动机超速的情况下使其完全打开。 一个关闭和加压止回阀（42）安装在进料管上，由一个带有高压油口（44a）的伺服阀（44）控制，达到高燃油压力， 喷射泵的初级进气口（14a）和将截流阀（42）的控制室（42a）中的压力设定为高压和低压口处的压力之间的值的输出。 在超速的情况下，喷射泵施加的限制导致喷射泵的初级进气口处的压力上升，从而在截止阀（42）的控制室中的压力升高，有利于其关闭。

公开(公告)号：US20110253231A1

公开(公告)日：2011-10-20

申请号：US13087745

申请日：2011-04-15

Applicant: Bastien DORE ,  Loïc Pora

Inventor： Bastien DORE ,  Loïc Pora

IPC: F16K15/00

CPC classification number: F02C9/263 ,  F01D21/02 ,  F02C7/232 ,  F05D2260/601 ,  Y10T137/7837

Abstract: A jet pump (14) is inserted between the low-pressure pump and a high-pressure fuel pump (16). A fuel metering unit (20) includes a metering valve (22) which delivers a regulated fuel flow to a feed line (30), and a bypass valve (24) which diverts to a primary intake (14a) of the jet pump the excess fuel flow supplied by the high-pressure pump. An overspeed protection unit (50) includes a control element (54) of the bypass valve (24) which causes said to fully open in the event of an overspeed of the engine. A shutoff and pressurization checkvalve (42) is mounted on the feed line and controlled by a servo-valve (44) having a high-pressure port (44a) brought to the high fuel pressure, a low-pressure port brought to the pressure of the primary intake (14a) of the jet pump and an output setting the pressure in a control chamber (42a) of the shutoff valve (42) to a value between those prevailing at the high pressure and low pressure ports. In the event of overspeed, the restriction imposed by the jet pump causes a pressure rise at the primary intake of the jet pump, hence a pressure rise in the control chamber of the shutoff valve (42), favoring the closing thereof.

Abstract translation: 喷射泵（14）插入在低压泵和高压燃料泵（16）之间。 燃料计量单元（20）包括计量阀（22），其将调节的燃料流输送到进料管线（30），以及旁路阀（24），其转移到喷射泵的初级进料口（14a） 由高压泵供应的燃料流量。 超速保护单元（50）包括旁通阀（24）的控制元件（54），其在发动机超速的情况下使其完全打开。 一个关闭和加压止回阀（42）安装在进料管上，由一个带有高压油口（44a）的伺服阀（44）控制，达到高燃油压力， 喷射泵的初级进气口（14a）和将截流阀（42）的控制室（42a）中的压力设定为高压和低压口处的压力之间的值的输出。 在超速的情况下，喷射泵施加的限制导致喷射泵的初级进气口处的压力上升，从而在截止阀（42）的控制室中的压力升高，有利于其关闭。

公开(公告)号：US20120266600A1

公开(公告)日：2012-10-25

申请号：US13500756

申请日：2010-09-30

Applicant: Nicolas Alain Bader ,  Frederic Brettes ,  Bastien Dore ,  Laurent Gilbert, Yves Hodinot

Inventor： Nicolas Alain Bader ,  Frederic Brettes ,  Bastien Dore ,  Laurent Gilbert, Yves Hodinot

IPC: F02C7/22

CPC classification number: F02C9/48 ,  F02C7/236 ,  F02C9/263 ,  F02K1/17

Abstract: A fuel feed circuit for an aeroengine, the circuit including a high-pressure pumping system including first and second positive displacement pumps, a hydraulic actuator, and a fuel metering unit. As a function of a position of a slide of the actuator, a feed orifice of the actuator may be connected to a high-pressure delivery orifice connected to an outlet of the second pump, or to a low-pressure delivery orifice connected to a low-pressure feed line. The fuel metering unit includes through sections, one of these through sections being connected to an outlet of the high-pressure pumping system and the other through section being connected to an outlet of the high-pressure pumping system and leading to a high-pressure pilot chamber of the hydraulic actuator.

Abstract translation: 一种用于航空发动机的燃料供给电路，该电路包括包括第一和第二容积式泵的高压泵送系统，液压致动器和燃料计量单元。 作为致动器的滑动位置的函数，致动器的进料孔可以连接到连接到第二泵的出口的高压输送孔，或连接到低压输送孔 压力进料管线。 燃料计量单元包括贯穿部分，这些通过部分中的一个连接到高压泵送系统的出口，另一个通过部分连接到高压泵送系统的出口，并通向高压引燃器 液压执行器的腔室。