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公开(公告)号：US10119556B2
公开(公告)日：2018-11-06
申请号：US14961244
申请日：2015-12-07
Applicant: Caterpillar Inc.
Inventor： Jeremy Todd Peterson , Jeffrey Lee Kuehn , Bryan E. Nelson , Paul Anthony Dvorak
IPC: F15B11/17 , E02F3/34 , E02F9/22 , F15B1/02 , F16H61/4078
Abstract: A hydraulic system is disclosed for use with a machine. The hydraulic system may have a closed-loop, meterless hydraulic circuit with a first pump fluidly connected to a first actuator. The hydraulic system may also have a closed-loop, metered hydraulic circuit with a second pump fluidly connected to a second actuator. The hydraulic system may further have a combiner valve configured to selectively direct fluid from the closed-loop metered hydraulic circuit to the closed-loop meterless hydraulic circuit.
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公开(公告)号：US11459987B2
公开(公告)日：2022-10-04
申请号：US16992487
申请日：2020-08-13
Applicant: Caterpillar Inc.
Inventor： Bryan E. Nelson , Nikhil M. Arya , Andrew J. Menssen
Abstract: A valve assembly for a pump includes an electrical actuator having a stator and an armature. The stator includes an annular outer stator portion and an annular inner stator portion, and an annular channel formed radially between the outer stator portion and the inner stator portion. A first radial channel extending through the annular outer stator portion between an outer surface of the outer stator portion and the annular channel, and at least one second opening in the annular outer stator portion results in magnetic symmetry of the stator. Upon activating the electrical actuator, the attraction of the armature towards the stator is uniform thus displacing fluid between the stator and armature in a uniform manner and to avoid high velocity, potentially damaging fluid flow.
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公开(公告)号：US10006449B2
公开(公告)日：2018-06-26
申请号：US14597019
申请日：2015-01-14
Applicant: Caterpillar Inc.
Inventor： Bryan E. Nelson , Daniel R. Baldwin , Alan R. Stockner , Robert M. Campion , Cory A. Brown , Joshua W. Steffen , Dana R. Coldren , Sana Mahmood
CPC classification number: F04B27/1054 , F04B27/1063 , F04B37/08 , F16C19/06 , F16C19/30 , F16C19/547 , F16C23/086 , F16C2360/00
Abstract: A bearing arrangement for a wobble plate piston pump includes first, second, third, and fourth bearing assemblies. The first and second bearing assemblies support the drive shaft portion for rotation within the housing about the central longitudinal axis, while the third and fourth bearing assemblies support the load plate for rotation relative to the offset shaft portion of the shaft. The second bearing assembly is distally disposed from the first, the third disposed distally to second, and the fourth disposed distally to third. The fourth bearing assembly is the most distally disposed bearing assembly along the shaft.
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Patent Agency Ranking
公开(公告)号：US09909576B2
公开(公告)日：2018-03-06
申请号：US14603898
申请日：2015-01-23
Applicant: Caterpillar Inc.
Inventor： Cory A. Brown , Bryan E. Nelson , Dana R. Coldren
CPC classification number: F04B9/109 , F04B1/16 , F04B15/08 , F04B19/22 , F04B37/08 , F04B39/0005 , F04B53/14 , F04B53/16 , F04B2015/081
Abstract: A cryogenic pump comprising a shaft disposed in a bearing. The shaft rotates with respect to the bearing housing, and the shaft includes an end with an angled face. The pump includes a drive at one end of the bearing housing. A tappet passage is formed through the drive housing. A pushrod housing connects to the drive housing. The pump includes a piston and a tappet sliding within the tappet passage. The tappet has a base end disposed within the tappet passage and a rod end extending below the tappet end of the drive housing. A fluid cavity is in the tappet passage between the piston and the tappet. The pump includes a pushrod connected to the tappet. The angled face of the shaft rotates and drives the piston toward the drive housing, pushing fluid within the fluid cavity against the tappet, driving the pushrod away from the drive housing.
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公开(公告)号：US20240301849A1
公开(公告)日：2024-09-12
申请号：US18118982
申请日：2023-03-08
Applicant: Caterpillar Inc.
Inventor： Dana Ray Coldren , Bryan E. Nelson , Hoisan Kim
CPC classification number: F02M37/0017 , B63H21/14 , B63H21/38 , F02M37/0023 , F02M37/0052 , F02M37/0088 , F02M37/04 , F02M37/32
Abstract: An alternative fuel management system may include a base configured for arrangement on a supporting floor or other framework of a vessel and configured to support alternative fuel supply equipment. The system may also include a sealed enclosure sealingly coupled to the base and configured to surround the alternative fuel supply equipment. The system may also include the alternative fuel supply equipment and it may be arranged within the sealed enclosure. The alternative fuel supply equipment may include a high-pressure pump, a fuel filter, a transfer pump, and a high-pressure fuel delivery line extending across the sealed enclosure and configured to provide alternative fuel from the high-pressure pump to a combustion engine. The alternative fuel management system may also include a purge fluid system configured to deliver purge fluid to the combustion engine from a source of purge fluid.
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公开(公告)号：US20160215766A1
公开(公告)日：2016-07-28
申请号：US14603898
申请日：2015-01-23
Applicant: CATERPILLAR INC.
Inventor： Cory A. Brown , Bryan E. Nelson , Dana R. Coldren
CPC classification number: F04B9/109 , F04B1/16 , F04B15/08 , F04B19/22 , F04B37/08 , F04B39/0005 , F04B53/14 , F04B53/16 , F04B2015/081
Abstract: A cryogenic pump comprising a shaft disposed in a bearing. The shaft rotates with respect to the bearing housing, and the shaft includes an end with an angled face. The pump includes a drive at one end of the bearing housing. A tappet passage is formed through the drive housing. A pushrod housing connects to the drive housing. The pump includes a piston and a tappet sliding within the tappet passage. The tappet has a base end disposed within the tappet passage and a rod end extending below the tappet end of the drive housing. A fluid cavity is in the tappet passage between the piston and the tappet. The pump includes a pushrod connected to the tappet. The angled face of the shaft rotates and drives the piston toward the drive housing, pushing fluid within the fluid cavity against the tappet, driving the pushrod away from the drive housing.
Abstract translation: 一种低温泵，包括设置在轴承中的轴。 轴相对于轴承壳体旋转，并且轴包括具有倾斜面的端部。 该泵包括在轴承壳体的一端的驱动器。 挺杆通道形成穿过驱动器壳体。 推杆外壳连接到驱动器外壳。 该泵包括在推杆通道内滑动的活塞和挺杆。 推杆具有设置在挺杆通道内的基端和延伸在驱动器壳体的挺杆端下方的杆端。 流体腔位于活塞和挺杆之间的挺杆通道中。 泵包括连接到挺杆的推杆。 轴的倾斜面旋转并将活塞驱动向驱动器壳体，将流体腔内的流体推向挺杆，将推杆远离驱动器壳体驱动。
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公开(公告)号：US20160201659A1
公开(公告)日：2016-07-14
申请号：US14597019
申请日：2015-01-14
Applicant: Caterpillar Inc.
Inventor： Bryan E. Nelson , Daniel R. Baldwin , Alan R. Stockner , Robert M. Campion , Cory A. Brown , Joshua W. Steffen , Dana R. Coldren , Sana Mahmood
CPC classification number: F04B27/1054 , F04B27/1063 , F04B37/08 , F16C19/06 , F16C19/30 , F16C19/547 , F16C23/086 , F16C2360/00
Abstract: A bearing arrangement for a wobble plate piston pump includes first, second, third, and fourth bearing assemblies. The first and second bearing assemblies support the drive shaft portion for rotation within the housing about the central longitudinal axis, while the third and fourth bearing assemblies support the load plate for rotation relative to the offset shaft portion of the shaft. The second bearing assembly is distally disposed from the first, the third disposed distally to second, and the fourth disposed distally to third. The fourth bearing assembly is the most distally disposed bearing assembly along the shaft.
Abstract translation: 摆动板活塞泵的轴承装置包括第一，第二，第三和第四轴承组件。 第一和第二轴承组件支撑驱动轴部分，用于围绕中心纵向轴线在壳体内旋转，同时第三和第四轴承组件支撑负载板以相对于轴的偏心轴部分旋转。 第二轴承组件从第一轴向组件向远侧设置，第三轴向组件向远侧配置到第二轴承组件，而第四轴向组件向远侧配置到第二轴承组件。 第四轴承组件是沿着轴的最远端布置的轴承组件。
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公开(公告)号：US12292022B2
公开(公告)日：2025-05-06
申请号：US18118982
申请日：2023-03-08
Applicant: Caterpillar Inc.
Inventor： Dana Ray Coldren , Bryan E. Nelson , Hoisan Kim
Abstract: An alternative fuel management system may include a base configured for arrangement on a supporting floor or other framework of a vessel and configured to support alternative fuel supply equipment. The system may also include a sealed enclosure sealingly coupled to the base and configured to surround the alternative fuel supply equipment. The system may also include the alternative fuel supply equipment and it may be arranged within the sealed enclosure. The alternative fuel supply equipment may include a high-pressure pump, a fuel filter, a transfer pump, and a high-pressure fuel delivery line extending across the sealed enclosure and configured to provide alternative fuel from the high-pressure pump to a combustion engine. The alternative fuel management system may also include a purge fluid system configured to deliver purge fluid to the combustion engine from a source of purge fluid.
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