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公开(公告)号：US20160258403A1
公开(公告)日：2016-09-08
申请号：US15157731
申请日：2016-05-18
Applicant: Caterpillar Inc.
Inventor： Andrew Ogden Marrack
CPC classification number: F16K1/00 , F02M37/0023 , F02M37/08 , F16K1/123 , F16K11/044 , F16K31/047 , F16K31/16 , F16K31/44
Abstract: A valve assembly for a pump driven by a motor is provided. The motor has an output shaft for driving the pump. The valve assembly includes a valve element concentrically attached to the output shaft of the motor. The valve assembly includes a gear set mounted on the output shaft of the motor. The gear set provides a motive force to the valve element through the output shaft for axially translating between an open position and a closed position on the output shaft. A spring located between the gear set and the valve element biases the valve element against the motive force provided by the gear set.
Abstract translation: 提供了一种由马达驱动的泵的阀组件。 马达具有用于驱动泵的输出轴。 阀组件包括同心地附接到电动机的输出轴的阀元件。 阀组件包括安装在马达的输出轴上的齿轮组。 齿轮组通过输出轴向阀元件提供动力，用于在输出轴上的打开位置和关闭位置之间轴向平移。 位于齿轮组和阀元件之间的弹簧抵抗由齿轮组提供的动力而偏压阀元件。
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公开(公告)号：US11698043B1
公开(公告)日：2023-07-11
申请号：US17690656
申请日：2022-03-09
Applicant: Caterpillar Inc.
Inventor： Andrew Ogden Marrack
CPC classification number: F02M21/0233 , F02M21/0215 , F02M21/0242 , F02M21/0278 , F02M47/06 , F02M51/0625
Abstract: A fuel injector for a fuel system in an internal combustion engine includes an injector housing, a direct-operated nozzle check movable within the injector housing, a check biasing spring within a spring chamber and biasing the nozzle check toward the closed position. The injector housing defines a damping control space, an always-open vent from the spring chamber to the damping control space, and a second vent from the spring chamber to the damping control space. The fuel injector further includes a hydraulically actuated damping adjustment valve movable responsive to a pressure of fuel supplied to the fuel injector between a higher damping position blocking the second vent, and a lower damping position where the second vent is open.
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3.发明授权公开(公告)号：US11174811B2
公开(公告)日：2021-11-16
申请号：US16733025
申请日：2020-01-02
Applicant: Caterpillar Inc.
Inventor： Andrew Ogden Marrack
Abstract: A fuel system includes a mechanically actuated fuel injector having a spill valve assembly and a control valve assembly. A rate shaping control unit is coupled with a spill valve actuator and a control valve actuator, and structured to adjust a dwell time, cycle to cycle, between opening of a spill valve and closing of a check control valve. Adjusting the dwell time enables varying a back end rate shape, cycle to cycle, of fuel injections from a fuel injector into a cylinder in an internal combustion engine.
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4.发明申请公开(公告)号：US20210207554A1
公开(公告)日：2021-07-08
申请号：US16733025
申请日：2020-01-02
Applicant: Caterpillar Inc.
Inventor： Andrew Ogden Marrack
IPC: F02D41/34
Abstract: A fuel system includes a mechanically actuated fuel injector having a spill valve assembly and a control valve assembly. A rate shaping control unit is coupled with a spill valve actuator and a control valve actuator, and structured to adjust a dwell time, cycle to cycle, between opening of a spill valve and closing of a check control valve. Adjusting the dwell time enables varying a back end rate shape, cycle to cycle, of fuel injections from a fuel injector into a cylinder in an internal combustion engine.
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