公开(公告)号：US20230264672A1

公开(公告)日：2023-08-24

申请号：US18110294

申请日：2023-02-15

Applicant: Cummins Inc.

Inventor： Chunyi Xia ,  Andrew W. Osburn ,  David B. Snyder ,  Adam C. Cecil ,  Anant Puri ,  Ming-Feng Hsieh ,  Timothy Shipp

IPC: B60W10/06 ,  B60W10/08 ,  B60W20/15

CPC classification number: B60W10/06 ,  B60W10/08 ,  B60W20/15 ,  B60W2710/0677 ,  B60W2710/0666 ,  B60W2710/0605

Abstract: In a system having a hybrid powertrain having a piston internal combustion engine, and a motor/generator, and the motor generator being coupleable to a clutch and thereby to a gearbox, the engine further being equipped with a valvetrain control system operable to change the engine valve operation between a first mode in which the engine can operate in a conventional internal combustion mode and a second mode in which pumping losses are reduced when the engine is not operating in a conventional internal combustion mode. This allows it to be rotated without generating power, in a hybrid mode, with minimal losses.

公开(公告)号：US10465643B2

公开(公告)日：2019-11-05

申请号：US15500903

申请日：2014-07-31

Applicant: Cummins Inc.

Inventor： Norman C. Blizard ,  Timothy P. Lutz ,  David B. Snyder

IPC: F02M43/04 ,  F02D19/06 ,  F02D19/08 ,  F02M43/00 ,  F02D19/10 ,  F02D41/00

Abstract: A method of reducing carbonaceous deposits on a fuel injector is provided in which a first fuel composition is supplied to the fuel injector in a dual fuel engine, the first fuel composition comprising natural gas fuel and a first percentage of diesel fuel; and a second fuel composition is supplied to the fuel injector in a dual fuel engine, the second fuel composition comprising a second percentage of diesel fuel that is greater than the first percentage of diesel fuel to cause cavitation to occur within the fuel injector, thereby reducing carbonaceous deposits.