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公开(公告)号：US11745552B2
公开(公告)日：2023-09-05
申请号：US17180269
申请日：2021-02-19
Applicant: Caterpillar Inc.
Inventor： John James Krone , Daniel Peter Sergison , Edward William Mate , Jeremy T. Peterson , Bradly Glen Duffer , Matthew Stephen Marquette
CPC classification number: B60D1/246 , B60D1/30 , B60D1/62 , B62D13/005
Abstract: A machine includes a frame and an oscillating hitch. A first cylinder couples to a first side of the oscillating hitch and a first side of the frame. A second cylinder couples to a second side of the oscillating hitch and a second side of the frame. A first isolating mechanism couples to the first cylinder and rotates in response to a first rotation of the first cylinder relative to the frame or the oscillating hitch. A first angle sensor senses a first angular displacement of the first isolating mechanism about a first rotational axis. A second isolating mechanism couples to the second cylinder and rotates in response to a second rotation of the second cylinder relative to the frame or the oscillating hitch. A second angle sensor senses a second angular displacement of the second isolating mechanism about a second rotational axis.
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公开(公告)号：US20180162441A1
公开(公告)日：2018-06-14
申请号：US15373558
申请日：2016-12-09
Applicant: Caterpillar Inc.
Inventor： Edward William Mate , David Mork , Steven Edward Johnson
Abstract: An emergency steering pump system for a primary pump providing a standby pressure via a primary output line includes a load sense line that is configured to branch-off from the primary output line. The load sense line has a first orifice disposed therein. A secondary pump is included for providing a margin pressure via a secondary output line that is coupled to the primary output line at a point downstream of the load sense line. A communication line is coupled to the primary output line at a point upstream of the load sense line. The communication line has a pressure control mechanism disposed therein. An output of the pressure control mechanism is coupled with an unloader valve of the secondary pump such that the pressure control mechanism is configured to bring about the margin pressure from the secondary pump.
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公开(公告)号：US09248854B2
公开(公告)日：2016-02-02
申请号：US13856733
申请日：2013-04-04
Applicant: Caterpillar Inc.
Inventor： Daryl James Belshan , Beau Daniel Kuipers , Edward William Mate , Gene Richard St. Germain
Abstract: A steering control system includes a steering circuit, a primary control circuit and a redundant control circuit. The primary control circuit includes primary proportional control valves, and a primary pilot valve having a thermal bleed of pilot fluid to warm the primary pilot valve when not operating to control the steering circuit. The redundant control circuit includes secondary proportional control valves, and a pressure reducing valve having a thermal bleed orifice allowing fluid flow to warm the pressure reducing valve when not operating to control the steering circuit. The thermal bleeds may also flow past the proportional control valves to raise their temperatures. The circuits of the steering control system are contained in a single valve group housing.
Abstract translation: 转向控制系统包括转向电路，主控制电路和冗余控制电路。 主控制电路包括初级比例控制阀和主导向阀，当未操作以控制转向回路时，主导阀具有先导流体的热泄放以加热主导阀。 冗余控制电路包括二次比例控制阀，以及具有热泄漏孔的减压阀，当不操作以控制转向回路时允许流体流动来加热减压阀。 热过滤器也可能流经比例控制阀以升高其温度。 转向控制系统的回路包含在单个阀组壳体中。
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公开(公告)号：US12017699B2
公开(公告)日：2024-06-25
申请号：US17180321
申请日：2021-02-19
Applicant: Caterpillar Inc.
Inventor： John James Krone , Daniel Peter Sergison , Edward William Mate , Jeremy T. Peterson , Bradly Glen Duffer , Matthew Stephen Marquette
CPC classification number: B62D15/0225 , B62D5/062 , B62D5/12 , B62D7/06 , B62D7/16 , B62D7/18 , B62D15/021 , B62D7/166
Abstract: A machine includes a frame, a first steering arm, a second steering arm, a first hydraulic actuator coupled to the frame and the first steering arm, and a second hydraulic actuator coupled to the frame and the second steering arm. A first angle sensor measures a rotational displacement of the first hydraulic actuator relative to the first steering arm. A first link couples the first hydraulic actuator and the first sensor, and isolates movements other than the first rotational displacement. A second angle sensor measures a second rotational displacement of the second hydraulic actuator relative to the second steering arm. A second link couples the second hydraulic actuator and the second sensor, and isolates movements other than the second rotational displacement.
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Patent Agency Ranking
公开(公告)号：US11654815B2
公开(公告)日：2023-05-23
申请号：US17164512
申请日：2021-02-01
Applicant: Caterpillar Inc.
Inventor： Edward William Mate , William N. O'Neill , Dennis William Dicker
CPC classification number: B60P1/162 , F15B11/04 , G05D7/014 , F15B2211/30505 , F15B2211/3111 , F15B2211/3127 , F15B2211/3144 , F15B2211/31576 , F15B2211/329 , F15B2211/7053 , F15B2211/7741
Abstract: A valve for controlling a hydraulic cylinder on a work machine may include a raising position configured for placing a pump in fluid communication with a cap end of the hydraulic cylinder. The valve may also include closed center position configured for closing off fluid communication to the cap end line and the rod end line. The valve may also include a lowering position configured for placing the pump in fluid communication with the rod end of the hydraulic cylinder. The valve may also include a snubbing position configured for placing the cap end in restricted flow fluid communication with the tank and for placing the rod end in restricted flow fluid communication with the tank.
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公开(公告)号：US20230019722A1
公开(公告)日：2023-01-19
申请号：US17376982
申请日：2021-07-15
Applicant: Caterpillar Inc.
Inventor： Edward William Mate , William N. O'Neill , Jeremy T. Peterson , Richard A. Carpenter
Abstract: A secondary steering pump system may include a secondary steering pump, a bypass valve having a first bypass position configured for placing the secondary steering pump in fluid communication with a hydraulic tank and a second use/testing position configured for placing the secondary steering pump in fluid communication with a steering control circuit. The system may also include a solenoid valve configured for actuation by a solenoid and for selectively actuating the bypass valve from the first position to the second position. The system may also include a pressure sensor configured for sensing pressure in the system.
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公开(公告)号：US20220266905A1
公开(公告)日：2022-08-25
申请号：US17180321
申请日：2021-02-19
Applicant: Caterpillar Inc.
Inventor： John James Krone , Daniel Peter Sergison , Edward William Mate , Jeremy T. Peterson , Bradly Glen Duffer , Matthew Stephen Marquette
Abstract: A machine includes a frame, a first steering arm, a second steering arm, a first hydraulic actuator coupled to the frame and the first steering arm, and a second hydraulic actuator coupled to the frame and the second steering arm. A first angle sensor measures a rotational displacement of the first hydraulic actuator relative to the first steering arm. A first link couples the first hydraulic actuator and the first sensor, and isolates movements other than the first rotational displacement. A second angle sensor measures a second rotational displacement of the second hydraulic actuator relative to the second steering arm. A second link couples the second hydraulic actuator and the second sensor, and isolates movements other than the second rotational displacement.
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公开(公告)号：US20220266642A1
公开(公告)日：2022-08-25
申请号：US17180269
申请日：2021-02-19
Applicant: Caterpillar Inc.
Inventor： John James Krone , Daniel Peter Sergison , Edward William Mate , Jeremy T. Peterson , Bradly Glen Duffer , Matthew Stephen Marquette
Abstract: A machine includes a frame and an oscillating hitch. A first cylinder couples to a first side of the oscillating hitch and a first side of the frame. A second cylinder couples to a second side of the oscillating hitch and a second side of the frame. A first isolating mechanism couples to the first cylinder and rotates in response to a first rotation of the first cylinder relative to the frame or the oscillating hitch. A first angle sensor senses a first angular displacement of the first isolating mechanism about a first rotational axis. A second isolating mechanism couples to the second cylinder and rotates in response to a second rotation of the second cylinder relative to the frame or the oscillating hitch. A second angle sensor senses a second angular displacement of the second isolating mechanism about a second rotational axis.
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公开(公告)号：US20220242295A1
公开(公告)日：2022-08-04
申请号：US17164512
申请日：2021-02-01
Applicant: Caterpillar Inc.
Inventor： Edward William Mate , William N. O'Neill , Dennis William Dicker
Abstract: A valve for controlling a hydraulic cylinder on a work machine may include a raising position configured for placing a pump in fluid communication with a cap end of the hydraulic cylinder. The valve may also include closed center position configured for closing off fluid communication to the cap end line and the rod end line. The valve may also include a lowering position configured for placing the pump in fluid communication with the rod end of the hydraulic cylinder. The valve may also include a snubbing position configured for placing the cap end in restricted flow fluid communication with the tank and for placing the rod end in restricted flow fluid communication with the tank.
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