公开(公告)号：US11624361B1

公开(公告)日：2023-04-11

申请号：US17672906

申请日：2022-02-16

Applicant: Caterpillar Inc.

Inventor： David Arthur Mork ,  Paul Richard English

IPC: F03C2/00 ,  F03C4/00 ,  F04C15/00 ,  F04C2/00 ,  F04C2/16 ,  F04C2/10

Abstract: A low pressure gear pump and wear plate is disclosed. The wear plate may comprise a sidewall, a drive portion, a driven portion, and a transition portion. The sidewall is free of a sealing member or a recess configured to receive the sealing member. The drive portion includes a drive inlet lip, a drive outlet lip, a drive recessed trough and a drive bore. The drive bore is configured to receive the drive shaft of the gear pump. The driven portion may that include a driven inlet lip, a driven outlet lip, a driven recessed trough, and a driven bore. The driven bore is configured to receive the driven shaft of the gear pump. The transition portion may include a transition aperture configured to receive a first fastener configured to mount the wear plate to the gear housing. The wear plate is made of bronze, aluminum or non-magnetic material.

公开(公告)号：US20150198507A1

公开(公告)日：2015-07-16

申请号：US14156136

申请日：2014-01-15

Applicant: Caterpillar Inc.

Inventor： David Arthur Mork ,  Biagio Ciarla ,  Wendell Dean Stahl ,  Daniel Todd Mather

IPC: G01M17/06 ,  B62D5/30

CPC classification number: G01M17/06 ,  B62D5/06 ,  B62D5/30

Abstract: A method of determining readiness of an emergency steering pump system is provided. The method may include the steps of detecting a startup condition; determining a standby pressure provided by a primary pump and a margin pressure to be provided by a secondary pump; engaging the secondary pump for a predefined duration based on the standby pressure and the margin pressure; and determining readiness based on a cumulative pressure of the standby pressure and the margin pressure as compared to a predefined threshold corresponding to load demand.

Abstract translation: 提供了一种确定紧急转向泵系统的准备状态的方法。 该方法可以包括检测启动条件的步骤; 确定由主泵提供的待机压力和由次级泵提供的裕度压力; 基于所述待机压力和所述裕度压力将所述辅助泵接合预定的持续时间; 以及与对应于负载需求的预定阈值相比，基于待机压力和余量压力的累积压力来确定准备状态。

公开(公告)号：US09050999B2

公开(公告)日：2015-06-09

申请号：US13750635

申请日：2013-01-25

Applicant: Caterpillar Inc.

Inventor： Beau Daniel Kuipers ,  Edward William Mate ,  David Arthur Mork

IPC: B62D6/00 ,  B62D6/06 ,  B62D6/10 ,  G05D1/00 ,  G05B13/00 ,  G05D3/12

CPC classification number: B62D6/008 ,  G05B13/00 ,  G05D1/00 ,  G05D3/12

Abstract: A steering system and method for providing a force feedback to an operator input device are disclosed. The method may determine an actual position of the operator input device. The method may determine a desired steering mechanism position of a steering mechanism based on the actual position of the operator input device. The method may determine an actual steering mechanism position of the steering mechanism. The method may compare the actual steering mechanism position to the desired steering mechanism position and to a previous desired steering mechanism position. The method may generate a command that selectively activates force feedback to the operator input device based on the comparison.

Abstract translation: 公开了一种用于向操作者输入装置提供力反馈的转向系统和方法。 该方法可以确定操作者输入装置的实际位置。 该方法可以基于操作者输入装置的实际位置来确定转向机构的期望转向机构位置。 该方法可以确定转向机构的实际转向机构位置。 该方法可以将实际的转向机构位置与期望的转向机构位置和先前期望的转向机构位置进行比较。 该方法可以生成基于比较选择性地激活对操作者输入装置的力反馈的命令。