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公开(公告)号：US20240392730A1
公开(公告)日：2024-11-28
申请号：US18322145
申请日：2023-05-23
Applicant: Caterpillar Inc.
Inventor： Michael David Gerstner , Arnold Myoungjin Kim
Abstract: An internal combustion engine system is described herein. The system uses compressed air from a compressor to purge at least a portion of a fuel from an internal combustion engine. During a purge operation, a controller opens and closes an injector of the fuel to be purged to allow the compressed air from the compressor to push at least a portion of the fuel back into a fuel tank through the injector. The controller deenergizes a fuel pump that pumps the fuel to be purged, allowing the pressure of the fuel that is to be purged to reduce to a pressure that allows the compressed air to flow into the injector.
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Patent Agency Ranking
2.发明申请公开(公告)号：US20250084800A1
公开(公告)日：2025-03-13
申请号：US18466066
申请日：2023-09-13
Applicant: Caterpillar Inc.
IPC: F02D19/06
Abstract: An internal combustion engine system is described herein. The system uses a mixer to mix two fuels to provide for a transition from using only one of the fuels to using only the other fuel as power demand changes. The output of the mixer is provided to the engine as a primary fuel. A controller opens and closes throttle valves to adjust the relative concentrations of a first fuel (e.g., diesel) and a second fuel (e.g., methanol) that enter the mixer. In some examples, rather than removing the desired performance and/or environmental benefits achieved by using the second fuel at power demand levels greater than the maximum achievable by only using the second fuel, the systems described herein allow the use of at least a portion of the second fuel in the primary fuel at those power demand levels.
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公开(公告)号：US11898524B1
公开(公告)日：2024-02-13
申请号：US18345625
申请日：2023-06-30
Applicant: Caterpillar Inc.
Inventor： Michael David Gerstner , Daniel Raymond Baldwin
IPC: F02M37/54
CPC classification number: F02M37/54
Abstract: A fuel delivery system for an internal combustion engine system is described herein. The fuel delivery system uses one or more bidirectional purge components to provide for bidirectional purging of a fuel from at least a portion of the fuel delivery system. The bidirectional purge components provide for a fuel delivered using the fuel delivery system to be purged into the directional purge component in more than one fluid flow direction. When a differential pressure is applied across the bidirectional purge component, the fuel is purged into an inlet and an outlet of the bidirectional purge component, leaving the component through a purge outlet and into a tank. The differential pressure can be generated using a pressured fluid such as nitrogen or a pump downstream of the purge outlet.
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公开(公告)号：US12215640B2
公开(公告)日：2025-02-04
申请号：US18322145
申请日：2023-05-23
Applicant: Caterpillar Inc.
Inventor： Michael David Gerstner , Arnold Myoungjin Kim
Abstract: An internal combustion engine system is described herein. The system uses compressed air from a compressor to purge at least a portion of a fuel from an internal combustion engine. During a purge operation, a controller opens and closes an injector of the fuel to be purged to allow the compressed air from the compressor to push at least a portion of the fuel back into a fuel tank through the injector. The controller deenergizes a fuel pump that pumps the fuel to be purged, allowing the pressure of the fuel that is to be purged to reduce to a pressure that allows the compressed air to flow into the injector.
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公开(公告)号：US11898506B1
公开(公告)日：2024-02-13
申请号：US18323897
申请日：2023-05-25
Applicant: Caterpillar Inc.
Inventor： Michael David Gerstner , Daniel Raymond Baldwin , Robert Graumüller
CPC classification number: F02D19/061 , F02D19/0634 , F02D19/0649 , F02D19/0665 , F02D19/0673 , F02D19/0684 , F02D19/0689 , F02D19/0694 , F02D2200/0611 , F02D2200/0614
Abstract: An internal combustion engine system is described herein. The internal combustion engine system uses one or more fuels that may be hydrophilic. The system uses a water measuring sensor to determine the concentration of water in the hydrophilic fuel. To meet power demands, the system uses the measured water concentration to modify data stored in a fuel map. The fuel map provides a controller the pump speeds and mixing ratio of the fuels for a given power level. The system receives that data and modifies it based on the measured concentration of water.
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公开(公告)号：US20150345448A1
公开(公告)日：2015-12-03
申请号：US14290375
申请日：2014-05-29
Applicant: Caterpillar Inc.
Inventor： Michael David Gerstner , David C. Mack
CPC classification number: F02M59/447 , F02M55/02 , F02M55/025 , F02M61/165 , F02M63/0054 , F02M2200/27
Abstract: A flow limiter and filter assembly for a fuel system of an engine includes a flow limiting valve attached to a filter element. The filter element has a large area inlet and a screen of small area outlets. Each of a plurality of quills for the fuel system includes a flow limiter and filter assembly positioned in a quill passage in contact with a limiter seat of a quill body, and the filter element is out of contact with the quill body.
Abstract translation: 用于发动机燃料系统的流量限制器和过滤器组件包括附接到过滤元件的限流阀。 过滤元件具有大面积的入口和小区域出口的屏幕。 用于燃料系统的多个套筒中的每一个都包括限流器和过滤器组件，所述流动限制器和过滤器组件定位在与套管主体的限制器座接触的套筒通道中，并且过滤元件与套筒体脱离接触。
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