-
1.发明授权Dual level pressurization control based on fuel flow to one or more gas turbine engine secondary fuel loads 有权基于燃料流到一个或多个燃气涡轮发动机二次燃料负载的双重级别的加压控制公开(公告)号：US07966995B2
公开(公告)日：2011-06-28
申请号：US11850302
申请日：2007-09-05
摘要： A system and method provide dual level pressurization control of a fuel supply system based on whether fuel is being supplied to one or more secondary fuel loads. Fuel pump discharge backpressure is maintained above either a first minimum pressure value or a lower second minimum pressure value by determining whether fuel is being supplied to one or more secondary fuel loads. The fuel pump discharge pressure is maintained above the first minimum pressure value if it is determined that fuel is being supplied to the one or more secondary loads. The fuel pump discharge backpressure is maintained above the lower second minimum pressure value if it is determined that fuel is not being supplied to the one or more secondary loads.
摘要翻译： 系统和方法基于是否将燃料供应给一个或多个二次燃料负载来提供燃料供应系统的双重级别的加压控制。 通过确定是否向一个或多个二次燃料负载供应燃料，燃料泵排出背压保持在第一最小压力值或较低的第二最小压力值之上。 如果确定燃料被供给到一个或多个二次负载，则燃料泵排出压力保持高于第一最小压力值。 如果确定没有向一个或多个二次负载供应燃料，则燃料泵排出背压保持在较低的第二最小压力值以上。
-
公开(公告)号：US06637349B1
公开(公告)日：2003-10-28
申请号：US09644598
申请日：2000-08-23
申请人： Gregory A. Lafferty
发明人： Gregory A. Lafferty
IPC分类号： A47B8506
摘要： A motorized picnic table having a drive mechanism, wheels connected to and driven by the drive mechanism, a table mounted above the drive mechanism, and at least one seat adjacent the table. In the preferred embodiment, the seats are bench-type seats and flank the drive mechanism. The motorized table includes fenders covering at least a portion of the wheels to protect the feet and legs of picnickers using the table from the wheels when the table is in motion. A foot platform is provided for picnickers to rest their feet upon. The table has a roof and a roof mounting frame for mounting said roof above said table. The roof may be removable. The motorized table has open sides. The motorized table includes a steering mechanism wherein the steering mechanism can be operated by a picnicker seated on one of the seats. In the preferred embodiment, the steering mechanism extends through an aperture in the picnic table. The drive mechanism has a hydrostatic transmission. The operating control for the hydrostatic transmission may be provided with a biasing mechanism for biasing the control in a neutral position when not actively engaged by the operator.
摘要翻译： 具有驱动机构的电动野餐桌，连接到驱动机构并由驱动机构驱动的车轮，安装在驱动机构上方的工作台以及邻近工作台的至少一个座。 在优选实施例中，座椅是台式座椅，并且位于驱动机构的侧面。 电动工作台包括覆盖至少一部分轮子的挡泥板，以在桌子运动时使用桌子从桌子上保护野餐者的脚和腿。 一个脚踏台为野餐者提供休息。 桌子有一个屋顶和一个屋顶安装框架，用于将所述屋顶安装在桌子上方。 屋顶可以是可拆卸的。 电动工作台有开放的侧面。 电动工作台包括转向机构，其中转向机构可由坐在其中一个座椅上的小吃枪操作。 在优选实施例中，转向机构延伸穿过野餐桌中的孔。 驱动机构具有静液压传动。 用于静液压变速器的操作控制可以设置有偏压机构，用于当操作者不主动接合时将控制偏压在中立位置。
-
3.发明授权System for positioning a piston including a fail fixed valve for holding the piston in position during a power interruption and method of using same 有权用于定位包括故障固定阀的活塞的系统，用于在电力中断期间将活塞保持在适当的位置以及使用它的方法公开(公告)号：US07296406B2
公开(公告)日：2007-11-20
申请号：US11363323
申请日：2006-02-28
申请人： Paul W. Futa, Jr. , George S. Wieger , Steven A. Lewis , Gregory A. Lafferty , John C. Van Oosterum
发明人： Paul W. Futa, Jr. , George S. Wieger , Steven A. Lewis , Gregory A. Lafferty , John C. Van Oosterum
CPC分类号： F15B20/008 , F15B13/0438 , F15B2211/8633 , F15B2211/875
摘要： A controlled piston (20, 62, 102) having a first end (24, 64, 104) mounted in a controlled piston sleeve (22) and a spool (16) movably mounted in a spool sleeve (18), a first fluid passage (40, 66, 108) from the spool (16) to the controlled piston first end (24, 64, 104), the position of the spool (16) affecting a position of the controlled piston (20, 62, 102), an FFV (42, 68, 110) in an FFV sleeve (44, 70, 112) in the first fluid passage (40, 66, 108) having a first end section (46, 74, 116), a second end section (48, 78, 120) and a central section (50, 82, 126) having a third diameter less than the diameters of the first and second sections, the FFV (42, 68, 110) being shiftable between a first position blocking the first fluid passage (40, 66, 108) and a second position allowing fluid flow past the central section (50, 82, 126) to the controlled piston (20, 62, 102), and a second fluid passage (56, 88, 134) from the spool (16) to the FFV first end section (46, 74, 116). Shifting the spool (16) to a failsafe position shifts the FFV (42, 68, 110) to the first position to fix the controlled piston (20, 62, 102) in place.
摘要翻译： 一个受控的活塞（20,62,102），其具有安装在受控的活塞套管（22）中的第一端（24,64,104）和可移动地安装在卷轴套管（18）中的阀芯（16），第一流体通道 （40,66,108）从所述阀芯（16）到所述受控活塞第一端（24,64,104）的位置，所述阀芯（16）的位置影响所述受控活塞（20,62,102）的位置， 在第一流体通道（40,66,108）中的FFV套筒（44,47,112）中的FFV（42,68,110）具有第一端部分（46,74,116），第二端部分 48，78，120）和具有小于第一和第二部分的直径的第三直径的中心部分（50,82,126），所述FFV（42,68,110）可在阻挡第一和第二部分的第一位置之间移动 流体通道（40,66,108）和允许流体流过中央部分（50,82,126）到受控活塞（20,62,102）的第二位置，以及第二流体通道（56,88,134 ）从卷轴（16）到FFV 第一端部分（46,74,116）。 将阀芯（16）移动到故障安全位置将FFV（42,68,110）移动到第一位置以将受控活塞（20,62,102）固定就位。
-
公开(公告)号：US07836676B2
公开(公告)日：2010-11-23
申请号：US11757810
申请日：2007-06-04
IPC分类号： F02C9/00
摘要： A system allows a user to manually manipulate fuel flow to a gas turbine engine during a loss of power to the fuel supply system fuel metering unit. The fuel metering unit includes a fuel metering valve, a metering valve actuator, a fail-fixed valve, a flow increase valve, and a flow decrease valve. The fuel metering unit is configured such that, upon electrical power interruption to the metering valve actuator, the fail-fixed valve shifts and provides a hydraulic lock on the fuel metering valve, to thereby maintain its position. The flow increase and flow decrease valves are powered from a power source that is independent of that used to power the fuel metering unit and, when appropriately energized will allow movement of the fuel metering valve.
摘要翻译： 系统允许用户在燃料供应系统燃料计量单元的功率损失期间手动地操纵到燃气涡轮发动机的燃料流。 燃料计量单元包括燃料计量阀，计量阀致动器，故障固定阀，增压阀和减流阀。 燃料计量单元被构造成使得在计量阀致动器的电力中断时，故障固定阀移动并在燃料计量阀上提供液压锁定，从而保持其位置。 流量增加和流量减少阀由独立于用于为燃料计量单元供电的电源供电，并且当适当通电时将允许燃料计量阀的移动。
-
公开(公告)号：US20080296403A1
公开(公告)日：2008-12-04
申请号：US11757810
申请日：2007-06-04
IPC分类号： F02M43/02
摘要： A system allows a user to manually manipulate fuel flow to a gas turbine engine during a loss of power to the fuel supply system fuel metering unit. The fuel metering unit includes a fuel metering valve, a metering valve actuator, a fail-fixed valve, a flow increase valve, and a flow decrease valve. The fuel metering unit is configured such that, upon electrical power interruption to the metering valve actuator, the fail-fixed valve shifts and provides a hydraulic lock on the fuel metering valve, to thereby maintain its position. The flow increase and flow decrease valves are powered from a power source that is independent of that used to power the fuel metering unit and, when appropriately energized will allow movement of the fuel metering valve.
摘要翻译： 系统允许用户在燃料供应系统燃料计量单元的功率损失期间手动地操纵到燃气涡轮发动机的燃料流。 燃料计量单元包括燃料计量阀，计量阀致动器，故障固定阀，增压阀和减流阀。 燃料计量单元被构造成使得在计量阀致动器的电力中断时，故障固定阀移动并在燃料计量阀上提供液压锁定，从而保持其位置。 流量增加和流量减少阀由独立于用于为燃料计量单元供电的电源供电，并且当适当通电时将允许燃料计量阀的移动。
-
公开(公告)号：US06997689B2
公开(公告)日：2006-02-14
申请号：US10369848
申请日：2003-02-20
IPC分类号： F03C2/00
CPC分类号： F04C2/086 , Y10T29/49238
摘要： A bearing assembly (20) for a pump (12), e.g., an internal or external gear pump includes a journal bearing block (20) having a length, a width, and an axial centerline (CL′) passing through a center of the journal bearing block (20) with respect to the length. The journal bearing block (20) includes at least two journal bearing bores (21), the journal bearing bores (21) each having a center (C), wherein a bearing bore centerline (CL) extends between the centers (C) of the journal bearing bores (21) and in parallel with the bearing bore centerline (CL). The bearing bore centerline (CL) is offset with respect to the width of the journal bearing block (20) and the axial centerline (CL′). The bearing assembly (20) is particularly applicable to gear pumps, such as external gear pumps for fuel applications.
摘要翻译： 用于例如内部或外部齿轮泵的泵（12）的轴承组件（20）包括轴颈轴承座（20），该轴颈轴承座具有经过中心的长度，宽度和轴向中心线（CL'）， 轴承座（20）相对于长度。 轴颈轴承座（20）包括至少两个轴颈轴承孔（21），轴颈轴承孔（21）各自具有中心（C），其中轴承孔中心线（CL）在中心（C） 轴颈孔（21）并与轴承孔中心线（CL）平行。 轴承孔中心线（CL）相对于轴颈轴承座（20）和轴向中心线（CL'）的宽度偏移。 轴承组件（20）特别适用于齿轮泵，例如用于燃料应用的外齿轮泵。
-
7.发明申请DUAL LEVEL PRESSURIZATION CONTROL BASED ON FUEL FLOW TO ONE OR MORE GAS TURBINE ENGINE SECONDARY FUEL LOADS 有权基于燃油流量的双层压力控制，可以用于一个或多个气体涡轮发动机二次燃料负荷公开(公告)号：US20100263634A1
公开(公告)日：2010-10-21
申请号：US11850302
申请日：2007-09-05
摘要： A system and method provide dual level pressurization control of a fuel supply system based on whether fuel is being supplied to one or more secondary fuel loads. Fuel pump discharge backpressure is maintained above either a first minimum pressure value or a lower second minimum pressure value by determining whether fuel is being supplied to one or more secondary fuel loads. The fuel pump discharge pressure is maintained above the first minimum pressure value if it is determined that fuel is being supplied to the one or more secondary loads. The fuel pump discharge backpressure is maintained above the lower second minimum pressure value if it is determined that fuel is not being supplied to the one or more secondary loads.
摘要翻译： 系统和方法基于是否将燃料供应给一个或多个二次燃料负载来提供燃料供应系统的双重级别的加压控制。 通过确定是否向一个或多个二次燃料负载供应燃料，燃料泵排出背压保持在第一最小压力值或较低的第二最小压力值之上。 如果确定燃料被供给到一个或多个二次负载，则燃料泵排出压力保持高于第一最小压力值。 如果确定没有向一个或多个二次负载供应燃料，则燃料泵排出背压保持在较低的第二最小压力值以上。
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.012 秒)
