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公开(公告)号：US11346313B2
公开(公告)日：2022-05-31
申请号：US17011635
申请日：2020-09-03
Applicant: Caterpillar Inc.
Abstract: A fuel flow limiter assembly includes a limiter body forming a central bore, and including a shutoff piston within the central bore having a closing hydraulic surface exposed to a fluid pressure of the fuel inlet, and being movable from an open position, to a closed position based on a fuel pressure drop from a fuel inlet to a fuel outlet in the limiter assembly. A fuel filter is resident in the limiter assembly and supported in a connector coupled to the limiter body. The fuel filter is elongate and projects from the connector into a fuel flow path from the fuel inlet to the fuel outlet.
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公开(公告)号：US20170037879A1
公开(公告)日：2017-02-09
申请号：US15333455
申请日：2016-10-25
Applicant: Caterpillar Inc.
Inventor： Aaron Michael Brown , Kenneth Carroll Adams
Abstract: A hydraulic actuator for a cryogenic pump is provided. The hydraulic actuator includes a piston. The hydraulic actuator also includes a base housing. The hydraulic actuator further includes a push rod assembly. The push rod assembly includes a tube guide. The push rod assembly also includes a push rod. The push rod is adapted to reciprocate within the tube guide. The hydraulic actuator also includes a sealing assembly having a hollow cylindrical configuration. The sealing assembly includes a first static seal portion. The first static seal portion being connected to the base housing. The sealing assembly also includes a second static seal portion. The second static seal portion is connected to the push rod. The sealing assembly further includes an expandable annular bellow extending between the first and second static seal portions. The sealing assembly is adapted to prevent flow of a first fluid in a first direction.
Abstract translation: 提供一种用于低温泵的液压致动器。 液压致动器包括活塞。 液压致动器还包括基座壳体。 液压致动器还包括推杆组件。 推杆组件包括管引导件。 推杆组件还包括推杆。 推杆适于在管引导件内往复运动。 液压致动器还包括具有中空圆柱形构造的密封组件。 密封组件包括第一静密封部分。 第一静密封部分连接到基座外壳。 密封组件还包括第二静态密封部分。 第二静密封部分连接到推杆上。 密封组件还包括在第一和第二静态密封部分之间延伸的可扩张的环形波纹管。 密封组件适于防止第一流体沿第一方向流动。
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公开(公告)号：US20220065208A1
公开(公告)日：2022-03-03
申请号：US17011635
申请日：2020-09-03
Applicant: Caterpillar Inc.
Abstract: A fuel flow limiter assembly includes a limiter body forming a central bore, and including a shutoff piston within the central bore having a closing hydraulic surface exposed to a fluid pressure of the fuel inlet, and being movable from an open position, to a closed position based on a fuel pressure drop from a fuel inlet to a fuel outlet in the limiter assembly. A fuel filter is resident in the limiter assembly and supported in a connector coupled to the limiter body. The fuel filter is elongate and projects from the connector into a fuel flow path from the fuel inlet to the fuel outlet.
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