公开(公告)号：US09777645B2

公开(公告)日：2017-10-03

申请号：US15186059

申请日：2016-06-17

Applicant: Cummins Inc.

Inventor： Timothy R. Evans ,  Andrew G. Kitchen ,  Jeffrey S. O'Neill ,  Michael A. LeNeave

IPC: F02D41/22 ,  F02D19/02 ,  F02M21/02 ,  F02D41/00 ,  F02N7/00 ,  F01M5/02 ,  F01M3/02

CPC classification number: F02D19/025 ,  F01M3/02 ,  F01M5/025 ,  F01M2005/026 ,  F02D19/022 ,  F02D19/027 ,  F02D41/0027 ,  F02D41/22 ,  F02D2041/225 ,  F02D2200/0602 ,  F02M21/0215 ,  F02M21/023 ,  F02M21/0245 ,  F02N7/00 ,  F02N9/04 ,  F02N11/108 ,  Y02T10/32 ,  Y02T10/40

Abstract: An internal combustion engine, a method of operating the internal combustion engine, and a controller are disclosed. The method may comprise measuring a first pressure at a first position in a fluid line containing pressurized fluid; comparing the first pressure to a first threshold; in response to the first pressure exceeding the first threshold, transmitting a signal to depressurize the fluid line; after transmitting the signal to depressurize the fluid line, measuring a second pressure in the fluid line and comparing the second pressure to at least one of a second threshold and a third threshold, the second threshold being greater than the third threshold and less than the first threshold; and in response to the second pressure being less than the second threshold and exceeding the third threshold, transmitting another signal to depressurize the fluid line.

公开(公告)号：US11525416B2

公开(公告)日：2022-12-13

申请号：US17502291

申请日：2021-10-15

Applicant: Cummins Inc.

Inventor： Hasan Mohammed ,  Jeffrey S. O'Neill

IPC: F02D41/02 ,  F01N9/00 ,  F01N11/00 ,  F02D33/00

Abstract: A method includes receiving information indicative of a temperature of exhaust gas emitted from an engine operating at an engine speed, determining that the temperature of the exhaust gas is below a predefined temperature threshold, determining an engine load sized to increase the temperature of the exhaust gas above the predefined temperature threshold, increasing a load on the engine to the determined engine load while maintaining the engine at the engine speed by increasing at least one of a fuel flow rate and a fuel flow pressure of the fuel pump powered by the engine, and diverting the excess fuel from the fuel flow path upstream of the engine. Increasing at least one of the fuel flow rate and the fuel pressure of the fuel pump causes excess fuel to be provided to the engine than is necessary to maintain the engine at the engine speed.

公开(公告)号：US20220034273A1

公开(公告)日：2022-02-03

申请号：US17502291

申请日：2021-10-15

Applicant: Cummins Inc.

Inventor： Hasan Mohammed ,  Jeffrey S. O'Neill

IPC: F02D41/02 ,  F01N11/00 ,  F02D33/00 ,  F01N9/00

Abstract: A method includes receiving information indicative of a temperature of exhaust gas emitted from an engine operating at an engine speed, determining that the temperature of the exhaust gas is below a predefined temperature threshold, determining an engine load sized to increase the temperature of the exhaust gas above the predefined temperature threshold, increasing a load on the engine to the determined engine load while maintaining the engine at the engine speed by increasing at least one of a fuel flow rate and a fuel flow pressure of the fuel pump powered by the engine, and diverting the excess fuel from the fuel flow path upstream of the engine. Increasing at least one of the fuel flow rate and the fuel pressure of the fuel pump causes excess fuel to be provided to the engine than is necessary to maintain the engine at the engine speed.

公开(公告)号：US20160369711A1

公开(公告)日：2016-12-22

申请号：US15186059

申请日：2016-06-17

Applicant: Cummins Inc.

Inventor： Timothy R. Evans ,  Andrew G. Kitchen ,  Jeffrey S. O'Neill ,  Michael A. LeNeave

IPC: F02D19/02 ,  F02D41/22 ,  F02M21/02

CPC classification number: F02D19/025 ,  F01M3/02 ,  F01M5/025 ,  F01M2005/026 ,  F02D19/022 ,  F02D19/027 ,  F02D41/0027 ,  F02D41/22 ,  F02D2041/225 ,  F02D2200/0602 ,  F02M21/0215 ,  F02M21/023 ,  F02M21/0245 ,  F02N7/00 ,  F02N9/04 ,  F02N11/108 ,  Y02T10/32 ,  Y02T10/40

Abstract: An internal combustion engine, a method of operating the internal combustion engine, and a controller are disclosed. The method may comprise measuring a first pressure at a first position in a fluid line containing pressurized fluid; comparing the first pressure to a first threshold; in response to the first pressure exceeding the first threshold, transmitting a signal to depressurize the fluid line; after transmitting the signal to depressurize the fluid line, measuring a second pressure in the fluid line and comparing the second pressure to at least one of a second threshold and a third threshold, the second threshold being greater than the third threshold and less than the first threshold; and in response to the second pressure being less than the second threshold and exceeding the third threshold, transmitting another signal to depressurize the fluid line.

Abstract translation: 公开了内燃机，操作内燃机的方法和控制器。 该方法可以包括在包含加压流体的流体管线中的第一位置处测量第一压力; 将第一压力与第一阈值进行比较; 响应于所述第一压力超过所述第一阈值，传送信号以使所述流体管线减压; 在传输信号以减压流体管线之后，测量流体管线中的第二压力并将第二压力与第二阈值和第三阈值中的至少一个进行比较，第二阈值大于第三阈值且小于第一阈值 阈; 并且响应于所述第二压力小于所述第二阈值并超过所述第三阈值，传送另一信号以使所述流体管线减压。