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公开(公告)号:US4925196A
公开(公告)日:1990-05-15
申请号:US278741
申请日:1988-11-30
IPC分类号: F02D17/04
CPC分类号: F02D17/04 , Y10T137/7835 , Y10T137/87917
摘要: A line pressure responsive flow control valve (46) is in series with a solenoid (34) operated off-on valve (26). These two valves (46, 26) are in a common housing having an inlet port (94) and an outlet port (96). A branch (24) of a bypass line (24, 24') extends from a fuel delivery line (10) to a fuel tank (16). A spring (76) biases a closure wall (70) of a piston (66) into contact with a valve seat (88) surrounding a valve orifice (90). Fuel pressure at the inlet (24) acts on the closure wall (70). When this pressure exceeds a predetermined minimum, the piston (66) is moved so as to open the valve orifice (90), allowing fuel to flow from the bypass line (24) to the off-on valve (26). The line pressure responsive flow control valve (46) functions to control flow through the bypass line (24, 24') at times when the off-on valve (26) is open.
摘要翻译: 管路压力响应流量控制阀(46)与操作的关闭阀(26)的螺线管(34)串联。 这两个阀(46,26)在具有入口(94)和出口(96)的公共壳体中。 旁通管线(24,24')的分支(24)从燃料输送管线(10)延伸到燃料箱(16)。 弹簧(76)将活塞(66)的封闭壁(70)偏置成与围绕阀孔(90)的阀座(88)接触。 入口(24)处的燃料压力作用在封闭壁(70)上。 当该压力超过预定的最小值时,活塞(66)被移动以打开阀孔(90),从而允许燃料从旁通管线(24)流动到截流阀(26)。 线路压力响应流量控制阀(46)用于在接通阀(26)打开时控制通过旁路管线(24,24')的流量。
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公开(公告)号:USRE34238E
公开(公告)日:1993-05-04
申请号:US420008
申请日:1989-10-10
IPC分类号: B60K15/035 , B60K15/04 , B65D55/16
CPC分类号: B60K15/035 , B60K15/0406 , B65D55/165 , B60K2015/03547 , Y10T137/1804
摘要: A valve plug (22, 22a, 22b) is biased inwardly by a spring (78, 78a, 78b) to close an opening (6, 6a, 6b) in a tank. A stem (32, 32a, 32b) extends axially inwardly from the plug (22, 22a, 22b). The stem (32, 32a, 32b) has an inner portion (36, 36a, 36b) which is mechanically interlocked with an outer portion (52, 52a, 52b) to directly transmit axial forces created by the spring (78, 78a, 78b). Fusible material (66, 66a, 66b) holds the stem portions (36, 36a, 36b, 52, 52a, 52b) in an interlocking position but carries only relatively small loads. The plug (22, 22a, 22b) and stem (32, 32a, 32b) move against the force of the spring (78, 78a, 78b) to relieve pressure. At elevated temperatures, the fusible material (66, 66a, 66b) melts to allow the stem portions (36, 36a, 36b, 52, 52a, 52b) to separate and the plug (22, 22a, 22b) and outer stem portion (52, 52a, 52b) to move away from the opening (6, 6a, 6b).
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公开(公告)号:US4732188A
公开(公告)日:1988-03-22
申请号:US062554
申请日:1987-06-15
IPC分类号: B60K15/035 , B60K15/04 , B65D55/16 , F16K13/04
CPC分类号: B65D55/165 , B60K15/035 , B60K15/0406 , B60K2015/03547 , Y10T137/1804 , Y10T137/7931
摘要: A valve plug (22, 22a, 22b) is biased inwardly by a spring (78, 78a, 78b) to close an opening (6, 6a, 6b) in a tank. A stem (32, 32a, 32b) extends axially inwardly from the plug (22, 22a, 22b). The stem (32, 32a, 32b) has an inner portion (36, 36a, 36b) which is mechanically interlocked with an outer portion (52, 52a, 52b) to directly transmit axial forces created by the spring (78, 78a, 78b). Fusible material (66, 66a, 66b) holds the stem portions (36, 36a, 36b, 52, 52a, 52b) in an interlocking position but carries only relatively small loads. The plug (22, 22a, 22b) and stem (32, 32a, 32b) move against the force of the spring (78, 78a, 78b) to relieve pressure. At elevated temperatures, the fusible material (66, 66a, 66b) melts to allow the stem portions (36, 36a, 36b, 52, 52a, 52b) to separate and the plug (22, 22a, 22b) and outer stem portion (52, 52a, 52b) to move away from the opening (6, 6a, 6b).
摘要翻译: 阀塞(22,22a,22b)被弹簧(78,78a,78b)向内偏压以封闭箱体中的开口(6,6a,6b)。 杆(32,32a,32b)从插头(22,22a,22b)轴向向内延伸。 杆(32,32a,32b)具有与外部部分(52,52a,52b)机械地互锁的内部部分(36,36a,36b),以直接传递由弹簧(78,78a,78b)产生的轴向力 )。 可熔材料(66,66a,66b)将杆部(36,36a,36b,52,52a,52b)保持在互锁位置,但仅承载相对较小的载荷。 插塞(22,22a,22b)和杆(32,32a,32b)抵抗弹簧(78,78a,78b)的作用力移动以减轻压力。 在升高的温度下,可熔材料(66,66a,66b)熔化以允许茎部分(36,36a,36b,52,52a,52b)分离并且插头(22,22a,22b)和外部茎部分 52,52a,52b)离开开口(6,6a,6b)。
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公开(公告)号:US4809944A
公开(公告)日:1989-03-07
申请号:US103934
申请日:1987-10-02
摘要: An air spring seat principally for buses, trucks, boats or other vehicles includes a manual air pump for inflating and deflating the air spring. The manual air pump includes a piston having a rearward air intake stroke, a forward compression stroke to deliver pressurized air through a check valve delivery and venting system to the air spring, a pressure stablized at rest position at the end of the compression stroke and a forward venting stroke from the at rest position mechanically to release air from the air spring through the check valve delivery and venting system. A floating seal carried by the piston provides a fluid tight seal between the piston and pump body during the piston compression stroke but permits air to move from the intake side of the piston to the compression side of the piston during the piston intake stroke. The piston movements are all controlled by a manual lever handle readily accessible to the seat occupant. The lever handle is nested adjacent the seat cushion in the at rest position of the piston, is pulled upwardly from the at rest position to effect the piston intake stroke, is pushed downwardly to the at rest position to effect the piston compression stroke, and is pushed further downwardly from the at rest position to effect the piston venting stroke. The manual air pump includes a check valve relief system to release pressurized air from the pump housing during the piston compression stroke when the air spring pressure equals a preselected maximum operating pressure.
摘要翻译: 主要用于公共汽车,卡车,船只或其他车辆的空气弹簧座椅包括用于对空气弹簧进行充气和放气的手动空气泵。 手动空气泵包括具有向后进气冲程的活塞,正向压缩行程,以将压缩空气通过止回阀输送和排气系统输送到空气弹簧,在压缩冲程结束时稳定在静止位置的压力和 从静止位置机械地向前排气行程,以通过止回阀输送和排气系统从空气弹簧释放空气。 由活塞承载的浮动密封件在活塞压缩行程期间在活塞和泵体之间提供流体密封,但是在活塞进气冲程期间允许空气从活塞的进气侧移动到活塞的压缩侧。 活塞运动都由座椅乘客容易接近的手动手柄把手控制。 杠杆把手在活塞的静止位置处嵌套在座垫附近,从静止位置向上拉动以实现活塞进气行程,被向下推到静止位置以实现活塞压缩冲程,并且是 从静止位置向下推动以进行活塞排气冲程。 手动空气泵包括止回阀释放系统,以在空气弹簧压力等于预选的最大工作压力时在活塞压缩冲程期间从泵壳体释放加压空气。
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公开(公告)号:US4954051A
公开(公告)日:1990-09-04
申请号:US282515
申请日:1989-01-12
IPC分类号: B60N2/52
摘要: An air spring seat principally for buses, trucks, boats or other vehicles includes a manual air pump for inflating and deflating the air spring. The manual air pump includes a piston having a rearward air intake stroke, a forward compression stroke to deliver pressurized air through a check valve delivery and venting system to the air spring, a pressure stabilized at rest position at the end of the compression stroke and a forward venting stroke from the at rest position mechanically to release air from the air spring through the check valve delivery and venting system. A floating seal carried by the piston provides a fluid tight seal between the piston and pump body during the piston compression stroke but permits air to move from the intake side of the piston to the compression side of the piston during the piston intake stroke. The piston movements are all controlled by a manual lever handle readily accessible to the seat occupant. The lever handle is nested adjacent the seat cushion in the at rest position of the piston, is pulled upwardly from the at rest position to effect the piston intake stroke, is pushed downwardly to the at rest position to effect the piston compression stroke, and is pushed further downwardly from the at rest position to effect the piston venting stroke. The manual air pump includes a check valve relief system to release pressurized air from the pump housing during the piston compression stroke when the air spring pressure equals a preselected maximum operating pressure.
摘要翻译: 主要用于公共汽车,卡车,船只或其他车辆的空气弹簧座椅包括用于对空气弹簧进行充气和放气的手动空气泵。 手动空气泵包括具有向后进气冲程的活塞,正向压缩冲程,以将加压空气通过止回阀输送和排气系统输送到空气弹簧,压缩稳定在压缩冲程结束时的静止位置,以及 从静止位置机械地向前排气行程,以通过止回阀输送和排气系统从空气弹簧释放空气。 由活塞承载的浮动密封件在活塞压缩行程期间在活塞和泵体之间提供流体密封,但是在活塞进气冲程期间允许空气从活塞的进气侧移动到活塞的压缩侧。 活塞运动都由座椅乘客容易接近的手动手柄把手控制。 杠杆把手在活塞的静止位置处嵌套在座垫附近,从静止位置向上拉动以实现活塞进气行程,被向下推到静止位置以实现活塞压缩冲程,并且是 从静止位置向下推动以进行活塞排气冲程。 手动空气泵包括止回阀释放系统,以在空气弹簧压力等于预选的最大工作压力时在活塞压缩冲程期间从泵壳体释放加压空气。
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