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1. 发明授权

US08991148B2 Fuel feed device for aviation engine 有权
标题翻译：航空发动机燃油进给装置
公开(公告)号：US08991148B2
公开(公告)日：2015-03-31
申请号：US13087745
申请日：2011-04-15
申请人： Bastien Dore , Loïc Pora
发明人： Bastien Dore , Loïc Pora
IPC分类号： F02C9/00 , F02C1/00 , F02C9/26 , F01D21/02 , F02C7/232
CPC分类号： F02C9/263 , F01D21/02 , F02C7/232 , F05D2260/601 , Y10T137/7837
摘要： 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.
摘要翻译：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。

2. 发明申请

US20110253231A1 FUEL FEED DEVICE FOR AVIATION ENGINE 有权
标题翻译：用于航空发动机的燃料送料装置
公开(公告)号：US20110253231A1
公开(公告)日：2011-10-20
申请号：US13087745
申请日：2011-04-15
申请人： Bastien DORE , Loïc Pora
发明人： Bastien DORE , Loïc Pora
IPC分类号： F16K15/00
CPC分类号： F02C9/263 , F01D21/02 , F02C7/232 , F05D2260/601 , Y10T137/7837
摘要： 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.
摘要翻译：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。

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