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公开(公告)号：US3731881A
公开(公告)日：1973-05-08
申请号：US3731881D
申请日：1972-02-24
CPC分类号： F16K31/0655 , F02M51/0646 , F02M51/0653 , F02M51/0657 , F02M2051/08 , F02M2200/505 , F02M2200/507 , F16K31/0651
摘要： A fuel injection valve having a hollow plastic nozzle with a discharge orifice at its front end, and a plastic bobbin with a hollow barrel and spaced flanges, the nozzle and barrel being in spaced alignment, and a coil surrounding the barrel between the flanges. A valve plunger in the nozzle is movable between closed and opened positions and has a front end which closes the orifice in the closed position, the plunger forming a first fluid passage communicating with the orifice. A magnetic casing surrounds a part of the nozzle and the bobbin and coil, and holds the nozzle and bobbin in assembled relation, the casing having a portion bridging the space between the nozzle and barrel. An armature is attached to the rear end of the plunger and has a portion extending into the space between the nozzle and bobbin and defining a first, fixed airgap with the bridging portion of the casing, the armature also forming a second fluid passage communicating with the first passage. A magnetic core is positioned in the barrel and forms a second airgap with the armature in its closed position, the core, casing and armature forming a magnetic circuit for the coil. The core forms a third fluid passage communicating with the second passage, and a spring normally biases the armature and plunger to the closed position. The core is secured to the casing, and the casing includes an inlet conduit communicating with the third passage.
摘要翻译： 一种燃料喷射阀，其具有在其前端具有排放孔的中空塑料喷嘴和具有中空圆筒和间隔开的凸缘的塑料筒管，所述喷嘴和筒体间隔开对准，以及在所述凸缘之间围绕所述筒体的线圈。 喷嘴中的阀柱塞可在闭合位置和打开位置之间移动，并且具有在关闭位置关闭孔口的前端，柱塞形成与孔口连通的第一流体通道。 磁性壳体围绕喷嘴的一部分和筒管和线圈，并且将喷嘴和筒管保持组装关系，壳体具有桥接喷嘴和筒之间的空间的部分。 电枢附接到柱塞的后端，并且具有延伸到喷嘴和筒管之间的空间中并且与壳体的桥接部分限定第一固定气隙的部分，衔铁还形成与第二流体通道连通的第二流体通道 第一次通过 磁芯定位在筒体中并形成第二气隙，电枢处于闭合位置，芯体，壳体和电枢形成线圈的磁路。 芯形成与第二通道连通的第三流体通道，并且弹簧通常将衔铁和柱塞偏压到关闭位置。 芯部固定到壳体，并且壳体包括与第三通道连通的入口导管。
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公开(公告)号：US3845850A
公开(公告)日：1974-11-05
申请号：US33466873
申请日：1973-02-22
IPC分类号： B41J2/32 , B41J25/316 , G07G5/00 , G01D15/10
CPC分类号： G07G5/00 , B41J2/32 , B41J25/316
摘要： A thermal printer which may be used to provide a hard copy readout for an electronic device such as a calculator, cash register, computer or the like. The thermal printer includes a printing head having a thermal printing matrix thereon, the printing head being mounted on a carriage which is slidably and pivotally mounted on an elongated cylindrical rod so as to permit the carriage and printhead to be moved linearly along the rod between first and second end positions through intermediate atrest and initial recording positions, and also to permit the carriage and printhead to be pivoted transversely from a printing position with the matrix engaging a stip of thermally sensitive paper, and an inactive position spaced therefrom. The carriage and printhead are moved linearly from position to position in equally spaced incremental steps, as by a stepper motor having a pinion engaging a rack on the carriage. The carriage engages a ramp upon linear movement of the carriage to the at-rest position in the direction toward the first end position thereby pivoting the carriage and printing head to the inactive position, and the carriage and printing head are spring-biased to the printing position between the at-rest position and the second end position. Linear movement of the carriage from the at-rest position to the first end position causes advance of the strip of paper.
摘要翻译： 可用于为诸如计算器，收银机，计算机等的电子设备提供硬拷贝读出的热敏打印机。 热敏打印机包括其上具有热敏打印矩阵的打印头，打印头安装在滑架上，该滑架可滑动地并且可枢转地安装在细长的圆柱形杆上，以便允许托架和打印头沿着杆在第一 和第二端位置通过中间静止和初始记录位置，并且还允许托架和打印头从打印位置横向枢转，其中矩阵接合热敏纸张，以及与其隔开的非活动位置。 托架和打印头以等间隔的增量步长从一个位置线性地移动到另一个位置，如步进马达，其具有与托架上的齿条接合的小齿轮。 滑架在滑架沿着朝向第一端位置的方向线性移动到静止位置时接合斜坡，从而将滑架和打印头转动到非活动位置，滑架和打印头被弹簧偏压到打印 在静止位置和第二结束位置之间的位置。 滑架从静止位置到第一端位置的线性移动导致纸条的推进。
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