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

IPC: F02B3/00 ,  F02D19/06

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.

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.

Inventor： Michael David Gerstner ,  Daniel Raymond Baldwin ,  Robert Graumüller ,  Eric Lee Schroeder

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.

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.

公开(公告)号：US10456715B2

公开(公告)日：2019-10-29

申请号：US15218933

申请日：2016-07-25

Applicant: Caterpillar Inc.

Inventor： Daniel Raymond Baldwin ,  David Todd Montgomery

IPC: B01D27/08 ,  F02M37/22 ,  F01M11/03 ,  F16J15/16

Abstract: A seal arrangement for joining a first component to a second component is disclosed. The seal arrangement may have a first sealing surface formed as an integral portion of the first component, and a second sealing surface formed as an integral portion of the second component and configured to directly engage the first sealing surface. The seal arrangement may also have an energizer engaged with the first sealing surface and configured to inhibit movement of the first sealing surface away from the second sealing surface during a temperature drop.