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公开(公告)号：US12168945B1
公开(公告)日：2024-12-17
申请号：US18393003
申请日：2023-12-21
Applicant: Caterpillar Inc.
Inventor： Rodney Allen Lawrence , Joshua Amiel Lehe , Derek M. Heinis , Brandyn A Stack
IPC: F01M13/04
Abstract: Apparatuses, systems and methods are disclosed including a breather remote from an engine housing. The breather can be configured to be in fluid communication with a blow-by gas of the engine, and an oil separating apparatus. The breather can be configured to separate oil from the blow-by gas with a first filter media. The oil separating apparatus can be configured to be in fluid communication with the blow-by gas and can be configured to further separate oil from the blow-by gas with a second filter media. The breather and the oil separating apparatus can be configured to be coupled directly together such that an outlet of the breather communicates directly with an inlet of the oil separating apparatus with no intermediate component therebetween facilitating communication.
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公开(公告)号：US11994220B1
公开(公告)日：2024-05-28
申请号：US17984813
申请日：2022-11-10
Applicant: Caterpillar Inc.
Inventor： Rodney Allen Lawrence , Eric Ferguson , Brandyn Stack
Abstract: Air valves, such as wastegates, utilize a shaft that rotates within a bushing system. Conventional deposition processes limit the thickness of the wear material between the shaft and bushing system. Accordingly, embodiments disclosed herein utilize one or more coating sleeves that are press-fit onto the shaft. This enables a thicker layer of wear material to be applied to the shaft, thereby improving the longevity and durability of the air valve, while also simplifying the manufacturing process. Embodiments may also utilize one or more anti-rotation features, such as a dowel or axial protrusion, and/or may utilize snap ring(s) to prevent axial sliding of the coating sleeve(s).
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公开(公告)号：US20220090526A1
公开(公告)日：2022-03-24
申请号：US17026770
申请日：2020-09-21
Applicant: Caterpillar Inc.
Inventor： Nicholas Edwin Wainscott , Kyle Robert Brewer , Rodney Allen Lawrence , Scott Byron Fiveland , Yongxian Gu
Abstract: Apparatuses, systems and methods are disclosed including an internal combustion engine. The internal combustion engine can include an engine block defining a combustion cylinder and a crankcase, a piston moveable within the combustion cylinder; a cylinder head coupled to the engine block adjacent to and in fluid communication with the combustion cylinder, and a purge system. The purge system can be in fluid communication with the crankcase. The purge system can supply air to the crankcase and to the cylinder head. The purge system can comprise a valve cover coupled to the cylinder head, a breather coupled to the valve cover, and a fumes disposal line coupled with the breather. The fumes disposal line can transport fumes from the breather and away from the cylinder head.
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公开(公告)号：US20160194988A1
公开(公告)日：2016-07-07
申请号：US15067201
申请日：2016-03-11
Applicant: Caterpillar Inc.
Inventor： Rodney Allen Lawrence , Brandyn Anthony Stack , Eric William Ferguson
CPC classification number: F01M13/0416 , F01M2013/0472 , F02F7/0065 , F02M25/06 , Y02T10/121
Abstract: A housing for a crankcase ventilation system of an engine is provided. The housing includes a plurality of walls connected together and having an outer surface and an inner surface. The inner surface of the plurality of walls defines a central cavity therewithin. The central cavity is adapted to enclose at least a portion of each of a Valve Cover integrated Breather (VCIB), an oil mist separator, and an inlet line connecting the VCIB and the oil mist separator. The housing also includes a coupling mechanism provided on one of the plurality of walls to mount the housing to the engine.
Abstract translation: 提供了一种用于发动机的曲轴箱通风系统的壳体。 壳体包括连接在一起并具有外表面和内表面的多个壁。 多个壁的内表面在其中限定了一个中心腔。 中心腔适于封闭阀盖集成通气器（VCIB），油雾分离器和连接VCIB和油雾分离器的入口管线的至少一部分。 壳体还包括设置在多个壁之一上以将壳体安装到发动机上的联接机构。
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公开(公告)号：US20240218817A1
公开(公告)日：2024-07-04
申请号：US18092525
申请日：2023-01-03
Applicant: Caterpillar Inc.
Inventor： Rodney Allen Lawrence , Brandyn A. Stack , Eric W. Ferguson , Yegor Litvinov
CPC classification number: F01M13/04 , B01D46/58 , B01D46/62 , F01M2013/0072 , F01M2013/0438
Abstract: Apparatuses, systems and methods are disclosed for separating oil from a blow-by gas of an engine. An example includes a method that includes passing the blow-by gas to a first oil separating apparatus and a second oil separating apparatus, wherein the first oil separating apparatus and the second oil separating apparatus are physically coupled together along interfacing surfaces and in fluid communication with one another as an array, separating the blow-by gas by passing the blow-by gas through respective filters of the first oil separating apparatus and the second oil separating apparatus, removing the oil from the blow-by gas with the respective filters and recombining the blow-by gas after passing from the respective filters; passing the blow-by gas as a single flow stream from the first oil separating apparatus and the second oil separating apparatus.
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Patent Agency Ranking
公开(公告)号：US11946397B1
公开(公告)日：2024-04-02
申请号：US18141579
申请日：2023-05-01
Applicant: Caterpillar Inc.
Inventor： Rodney Allen Lawrence , Brandyn A. Stack , Joshua Amiel Lehe , Nicholas Edwin Wainscott , Eric John Forthofer
CPC classification number: F01M5/005 , F01M5/021 , F01M11/0004 , F01M13/021 , F01M13/04 , F01M2013/026 , F01M2013/0438
Abstract: An engine system optionally including: a crankcase of an engine having a blow-by gas passing therethrough; a liquid source containing a liquid; and an oil separating apparatus in fluid communication with the blow-by gas. The oil separating apparatus having a coalescing filter to separate oil from the blow-by gas. Separate from the blow-by gas and the coalescing filter, the oil separating apparatus is in fluid communication with the liquid source to receive the liquid. The liquid is passed through the oil separating apparatus in a heat exchange relationship with the blow-by gas to maintain a desired temperature range for the blow-by gas.
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公开(公告)号：US20190301638A1
公开(公告)日：2019-10-03
申请号：US15940428
申请日：2018-03-29
Applicant: Caterpillar Inc.
Abstract: A shutoff valve assembly for a fluid supply system includes a shutoff valve, with a valve member movable therein to shutoff fluid flow through a fluid conduit. The shutoff valve assembly includes a sensor target assembly with a sensor target located outside of the valve housing, and a rotator structured to transmit a rotation of the valve member within the valve housing to the sensor target. A proximity sensor is located outside of the valve housing and structured to produce a valve closing signal based on rotation of the sensor target that is indicative of initiating closing the shutoff valve. The design is adapted for relatively high temperature and high vibration environments.
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公开(公告)号：US11988119B1
公开(公告)日：2024-05-21
申请号：US18200328
申请日：2023-05-22
Applicant: Caterpillar Inc.
Inventor： Lucas K. Smith , Rodney Allen Lawrence
CPC classification number: F01M13/028 , F01M2013/0038
Abstract: Apparatuses, systems and methods are disclosed including an internal combustion engine. The internal combustion engine can include an engine block defining a combustion chamber and a crankcase in fluid communication with the combustion chamber. The internal combustion engine can include an auxiliary device in fluid communication with the crankcase of the engine block. The auxiliary device is driven by the internal combustion engine to supply air to the crankcase of the engine block at a desired pressure range and a desired mass flow rate range to ventilate the crankcase.
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公开(公告)号：US11454147B2
公开(公告)日：2022-09-27
申请号：US17026770
申请日：2020-09-21
Applicant: Caterpillar Inc.
Inventor： Nicholas Edwin Wainscott , Kyle Robert Brewer , Rodney Allen Lawrence , Scott Byron Fiveland , Yongxian Gu
Abstract: Apparatuses, systems and methods are disclosed including an internal combustion engine. The internal combustion engine can include an engine block defining a combustion cylinder and a crankcase, a piston moveable within the combustion cylinder; a cylinder head coupled to the engine block adjacent to and in fluid communication with the combustion cylinder, and a purge system. The purge system can be in fluid communication with the crankcase. The purge system can supply air to the crankcase and to the cylinder head. The purge system can comprise a valve cover coupled to the cylinder head, a breather coupled to the valve cover, and a fumes disposal line coupled with the breather. The fumes disposal line can transport fumes from the breather and away from the cylinder head.
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公开(公告)号：US11028806B2
公开(公告)日：2021-06-08
申请号：US15940469
申请日：2018-03-29
Applicant: Caterpillar Inc.
Inventor： Rodney Allen Lawrence , Brandyn Anthony Stack , Joseph John Stabnik , Keith Thomas Igoe , Eric Ferguson
Abstract: A fluid supply system for a machine such as an internal combustion engine includes a shutoff valve having an electrical actuator that includes a solenoid subassembly, and a stabilizer for the electrical valve actuator. The stabilizer includes a fitting structured to couple the shutoff valve to adjacent hardware in the fluid supply system, and a strongarm extending between the fitting and the solenoid assembly and clamped to the solenoid subassembly. A vibration-damping reinforced grommet may be clamped between the solenoid subassembly and the clamp.
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