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    COMBUSTION BOWL OF A PISTON FOR AN ENGINE
    11.
    发明申请
    COMBUSTION BOWL OF A PISTON FOR AN ENGINE 审中-公开

    公开(公告)号：US20180187626A1

    公开(公告)日：2018-07-05

    申请号：US15398485

    申请日：2017-01-04

    Applicant: Caterpillar Inc.

    Inventor： David T. Montgomery

    IPC: F02F3/26 ,  F02F1/24 ,  F02F7/00 ,  F02M61/14

    CPC classification number: F02M61/14 ,  F02B23/0672 ,  F02B23/0693

    Abstract: A piston for an engine may include a body. The body may extend between a first and second axial region. A piston crown may be disposed at the first axial region symmetrically about a central longitudinal axis of the piston. A first bowl may be recessed into the body and may include a first curved wall transitioning into the piston crown at a bowl lip. The bowl lip may include a bowl lip diameter. The first curved wall may include a first wall diameter greater than the bowl lip diameter. A second bowl may be recessed into the body and disposed axially inwardly from the first bowl. The second bowl may include a second curved wall transitioning into the first bowl at a peak. The peak may include a peak diameter. The second curved wall may include a second wall diameter greater than the peak diameter.

    PRESSURE REGULATOR HAVING AN INTEGRATED CHECK VALVE
    13.
    发明申请
    PRESSURE REGULATOR HAVING AN INTEGRATED CHECK VALVE 有权
    具有集成检查阀的压力调节器

    公开(公告)号：US20140165966A1

    公开(公告)日：2014-06-19

    申请号：US13718516

    申请日：2012-12-18

    Applicant: CATERPILLAR INC.

    Inventor： Cory A. Brown ,  David T. Montgomery ,  Mark F. Sommars

    IPC: F02M43/04

    CPC classification number: F02M43/04 ,  F02M63/0042 ,  F02M63/0052 ,  Y10T137/0379 ,  Y10T137/7794

    Abstract: A pressure regulator for use in an engine is disclosed. The pressure regulator may include first and second flow paths formed in a body, wherein the first flow path is configured to pass a first fluid and the second flow path is configured to receive a second fluid. A diaphragm may be disposed within the first flow path and the diaphragm may be configured to move based on a pressure differential between the first and second fluids. The pressure regulator may further include a seat associated with the first flow path. A primary valve element may be connected to the diaphragm and configured to selectively engage the seat when a pressure of the fluid in the first flow path exceeds a pressure of the fluid in the second flow path by a first threshold amount. Additionally, a secondary valve element may be connected to the diaphragm and configured to selectively engage the seat when the pressure of the fluid in the second flow path exceeds the pressure of the fluid in the first flow path by a second threshold amount.

    Abstract translation: 公开了一种用于发动机的压力调节器。 压力调节器可以包括形成在主体中的第一和第二流动路径，其中第一流动路径被配置成通过第一流体，并且第二流动路径被配置成接收第二流体。 隔膜可以设置在第一流路内，并且隔膜可以构造成基于第一和第二流体之间的压差而移动。 压力调节器还可以包括与第一流动路径相关联的座椅。 主阀元件可以连接到隔膜并且构造成当第一流路中的流体的压力超过第二流动路径中的流体的压力第一阈值时，选择性地接合座。 此外，次级阀元件可以连接到隔膜并且构造成当第二流动路径中的流体的压力超过第一流动路径中的流体的压力第二阈值量时选择性地接合座椅。

    Systems and methods for carbon capture
    15.
    发明授权
    Systems and methods for carbon capture 有权

    公开(公告)号：US12263442B2

    公开(公告)日：2025-04-01

    申请号：US17720991

    申请日：2022-04-14

    Applicant: Caterpillar Inc.

    Inventor： David M. Ginter ,  Nikolas Karl Landin ,  David T. Montgomery

    IPC: B01D53/62 ,  B01D53/94 ,  C01B3/16

    Abstract: A carbon capture system includes a hydrogen production module. The hydrogen production module is used to control the amount of hydrogen entering an internal combustion engine to reduce an amount of water vapor generated by the internal combustion engine, thereby increasing the efficiency of the carbon capture device. If too much water vapor is detected in an exhaust of the engine, the amount of hydrogen produced by a hydrogen production module can be increased, thereby reducing the amount of hydrogen entering the engine and reducing the amount of water vapor generated by the engine. A reformer catalyst can be used by the hydrogen production module to remove at least a portion of hydrogen in a fuel stream of the engine.

    Controlling PEMFC stack flooding
    16.
    发明授权
    Controlling PEMFC stack flooding 有权

    公开(公告)号：US12191542B2

    公开(公告)日：2025-01-07

    申请号：US17804117

    申请日：2022-05-26

    Applicant: Caterpillar Inc.

    Inventor： David Ginter ,  David T. Montgomery

    IPC: H01M8/04 ,  H01M8/04111 ,  H01M8/04119 ,  H01M8/04492 ,  H01M8/04537 ,  H01M8/04701 ,  H01M8/04746

    Abstract: A system for detecting humidity level at a cathode of a fuel cell stack including one or more PEMFCs and determining a flooding probability of the stack based on the humidity level, includes a stack including a plurality of PEMFCs, each PEMFC including an exhaust; voltage detector; humidity detector; and controller. The controller may be configured to: receive a voltage as measured at an anode of one or more of the PEMFCs with the voltage detector; determine a humidity level at the exhaust of the one or more of the PEMFCs; and implement one or more actions based on the voltage and the humidity level, the actions including: reduce a load on the PEMFC; increase an air flow at a cathode of the one or more PEMFCs; decrease an inlet humidity at an inlet to the one or more PEMFCs; or increase a temperature of the one or more PEMFCs.

    CRYOGENIC CONTAINMENT SYSTEM
    17.
    发明公开
    CRYOGENIC CONTAINMENT SYSTEM 审中-公开

    公开(公告)号：US20230234845A1

    公开(公告)日：2023-07-27

    申请号：US17585098

    申请日：2022-01-26

    Applicant: Caterpillar Inc.

    Inventor： Michael Bardell ,  David T. Montgomery

    IPC: C01B3/32 ,  C01B3/52

    CPC classification number: C01B3/323 ,  C01B3/52 ,  C01B2203/04 ,  C01B2203/1011 ,  C01B2203/1223 ,  C01B2203/84 ,  C01B2203/1685

    Abstract: A system is disclosed. The system can store a fuel reagent such as methanol for conversion into hydrogen to power one or more facility systems via a backup power system. A reactor controller can monitor a power demand of the one or more facility systems and determine whether the power demand is met by a primary power system. The fuel reagent can be provided to a fuel reactor in response to the reactor controller determining that the one or more facility systems are operating at a power deficit to generate an amount of hydrogen that, when provided to the backup power system, causes the backup power system to generate an amount of power that meets or exceeds the power deficit.

    ON-TANK REGULATOR FOR HIGH-PRESSURE TANK
    18.
    发明申请
    ON-TANK REGULATOR FOR HIGH-PRESSURE TANK 有权

    公开(公告)号：US20230014654A1

    公开(公告)日：2023-01-19

    申请号：US17379935

    申请日：2021-07-19

    Applicant: Caterpillar Inc.

    Inventor： David T. Montgomery

    IPC: F17C1/00 ,  F17C7/00

    Abstract: A storage tank includes a tank wall, a pressure regulator, a low-pressure coupling, and a fill coupling. The tank wall of the storage tank is configured to contain a stored fluid at an internal pressure within the tank wall, the tank wall including an outer layer, an inner layer, and a regulator mount. The pressure regulator of the storage tank is connected to the regulator mount and is configured to receive a flow rate of the stored fluid and reduce the stored fluid from the internal pressure to an output pressure. The flow rate of the stored fluid is provided, via the low pressure coupling and at the output pressure to an external system. The fill coupling extends through the tank wall and receives the stored fluid from a fluid source to be stored within the storage tank

    Intake bypass for liquid fuel engine
    19.
    发明授权
    Intake bypass for liquid fuel engine 有权

    公开(公告)号：US11549451B1

    公开(公告)日：2023-01-10

    申请号：US17660794

    申请日：2022-04-26

    Applicant: Caterpillar Inc.

    Inventor： Michael Bardell ,  David T. Montgomery

    IPC: F02B29/04 ,  F02D19/08 ,  F02D41/00 ,  F02B37/16 ,  F02M61/14 ,  F02D19/06 ,  F02D19/12

    Abstract: A fuel supply system for an internal combustion engine includes an air compressor, an air cooler connected downstream of the air compressor and the compressed air supply passage, and a bypass passage connected downstream of the air compressor. The fuel supply system also includes a fuel injector secured to the compressed air supply passage or secured to the bypass passage and a valve connected between the air compressor and the air cooler, the valve being configured to block a flow of intake air to the air cooler, causing the intake air to flow to the bypass passage or to permit the flow of intake air to the air cooler.

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