公开(公告)号：US20170002772A1

公开(公告)日：2017-01-05

申请号：US15195151

申请日：2016-06-28

Applicant: Cummins Inc.

Inventor： Anthony Kyle Perfetto ,  Samuel C. Geckler ,  Hongfeng H. Wang

IPC: F02M26/09 ,  F02M26/23 ,  F02B75/22 ,  F02B29/04 ,  F02B37/00 ,  F02M26/08 ,  F02M26/43

CPC classification number: F02M26/09 ,  F02B29/0412 ,  F02B37/001 ,  F02B2075/1824 ,  F02M26/08 ,  F02M26/23 ,  F02M26/43 ,  Y02T10/144 ,  Y02T10/146

Abstract: Systems, apparatus, and methods are disclosed that include a divided exhaust engine with at least one pair of primary EGR cylinders and a plurality of pairs of non-primary EGR cylinders. The pair of primary EGR cylinders can be connected to an intake with an EGR system that lacks an EGR cooler. In another embodiment, the cylinder pairs include exhaust flow paths that join in the cylinder head to form a common exhaust outlet for each cylinder pair in the cylinder head that is connected directly to the EGR system or to the exhaust system without an exhaust manifold.

Abstract translation: 公开了包括具有至少一对主EGR气缸和多对非初级EGR气缸的分开的排气发动机的系统，装置和方法。 一对初级EGR气缸可以连接到具有缺少EGR冷却器的EGR系统的进气口。 在另一个实施例中，气缸对包括排气流动路径，其连接在气缸盖中，以形成用于气缸盖中的每个气缸对的公共排气出口，其直接连接到EGR系统或排气系统而没有排气歧管。

公开(公告)号：US20150345433A1

公开(公告)日：2015-12-03

申请号：US14717566

申请日：2015-05-20

Applicant: Cummins Inc.

Inventor： Adrian P. Dale ,  Michael D. Dolton ,  Samuel C. Geckler ,  James Alexander McEwen ,  Nicholas Kenneth Sharp ,  Stephen Edward Garrett ,  Anthony Kyle Perfetto

IPC: F02M25/07 ,  F02C6/12

CPC classification number: F02M26/43 ,  F01D9/026 ,  F01N13/107 ,  F02B37/025 ,  F02C6/12 ,  F02M25/0749 ,  F05D2220/40 ,  Y02T10/144

Abstract: A unique engine system has an engine with a dedicated exhaust gas recirculation cylinder, an EGR system that receives exhaust gas from the dedicated cylinder, and a turbocharger having turbine inlet ports in fluid communication with other engine cylinders via a plurality of exhaust passages. At least two of the exhaust passages are substantially isolated from each other. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for engines and engine systems.

Abstract translation: 独特的发动机系统具有发动机，其具有专用的废气再循环气缸，EGR系统，其接收来自专用气缸的废气，以及涡轮增压器，其具有通过多个排气通道与其它发动机气缸流体连通的涡轮机入口。 至少两个排气通道彼此基本隔离。 其他实施例包括发动机和发动机系统的装置，系统，装置，硬件，方法和组合。

公开(公告)号：US09194307B2

公开(公告)日：2015-11-24

申请号：US13834632

申请日：2013-03-15

Applicant: Cummins Inc.

Inventor： Samuel C. Geckler ,  Marten H. Dane ,  Anthony Kyle Perfetto

IPC: F02D19/06 ,  F02D41/00 ,  F02M25/07 ,  F02D19/08

CPC classification number: F02D19/061 ,  F02D19/0647 ,  F02D19/0692 ,  F02D19/084 ,  F02D41/0025 ,  F02D41/0065 ,  F02D41/008 ,  F02M26/05 ,  F02M26/28 ,  F02M26/43 ,  Y02T10/36 ,  Y02T10/47

Abstract: Systems and methods for fuelling a plurality of cylinders of an internal combustion engine are disclosed. The system includes a dedicated exhaust gas recirculation system for recirculating exhaust gas flow from at least one dedicated cylinder of an engine into an intake system prior to combustion. The system further includes a fueling system to provide a first flow of fuel to each of the plurality of cylinders and a second flow of fuel to each of the dedicated cylinders that is in addition to the first flow of fuel.

Abstract translation: 公开了用于对内燃机的多个气缸进行加油的系统和方法。 该系统包括专用废气再循环系统，用于在燃烧之前将来自发动机的至少一个专用气缸的废气流再循环到进气系统中。 该系统还包括燃料供给系统，用于向多个气缸中的每一个提供第一燃料流，以及除了第一燃料流之外的每个专用气缸的第二燃料流。

公开(公告)号：US20150159588A1

公开(公告)日：2015-06-11

申请号：US14100561

申请日：2013-12-09

Applicant: Cummins Inc.

Inventor： Samuel C. Geckler ,  Anthony Kyle Perfetto

IPC: F02M25/07

CPC classification number: F02M26/43 ,  F02D13/0207 ,  F02D13/0234 ,  F02D13/0265 ,  F02D13/0269 ,  F02D15/00 ,  F02D41/0065 ,  F02D41/008 ,  F02D2041/001 ,  F02D2700/03 ,  F02M26/01 ,  F02M26/05 ,  F02M26/25 ,  Y02T10/142 ,  Y02T10/47

Abstract: A system includes an internal combustion engine having a number of cylinders. At least one of the cylinders is a primary EGR cylinder that solely provides EGR flow during at least some operating conditions. Operation of the primary EGR cylinder is controlled separately from the other cylinders to reduce internal residuals in the primary EGR cylinder.

Abstract translation: 一种系统包括具有多个气缸的内燃机。 至少一个气缸是在至少一些操作条件下仅提供EGR流量的主EGR气缸。 主EGR缸的操作与其它气缸分开控制，以减少主EGR气缸内的内部残余。

公开(公告)号：US20240035432A1

公开(公告)日：2024-02-01

申请号：US17815988

申请日：2022-07-29

Applicant: Cummins Inc.

Inventor： Anthony Kyle Perfetto ,  Samuel C. Geckler

IPC: F02M31/14 ,  F02M31/18 ,  F02M21/02

CPC classification number: F02M31/14 ,  F02M31/183 ,  F02M21/0227 ,  F02M21/0215

Abstract: Systems and methods for thermal management of a propane fuel system are disclosed that include controlling a pressure of a fuel tank so that a fuel supply is available for starting of the engine even during cold ambient conditions.

公开(公告)号：US11536226B2

公开(公告)日：2022-12-27

申请号：US17227574

申请日：2021-04-12

Applicant: Cummins Inc.

Inventor： Anthony Kyle Perfetto ,  Samuel C. Geckler ,  Hongfeng H. Wang

IPC: F02M26/43 ,  F02B37/02 ,  F02B75/18 ,  F02M26/09 ,  F02M26/08 ,  F02M26/23 ,  F02B29/04 ,  F02B37/00

Abstract: Systems, apparatus, and methods are disclosed that include a divided exhaust engine with at least one pair of primary EGR cylinders and a plurality of pairs of non-primary EGR cylinders. The pair of primary EGR cylinders can be connected to an intake with an EGR system that lacks an EGR cooler. In another embodiment, the cylinder pairs include exhaust flow paths that join in the cylinder head to form a common exhaust outlet for each cylinder pair in the cylinder head that is connected directly to the EGR system or to the exhaust system without an exhaust manifold.

公开(公告)号：US11512653B2

公开(公告)日：2022-11-29

申请号：US17378996

申请日：2021-07-19

Applicant: Cummins Inc.

Inventor： Anthony Kyle Perfetto ,  Anshul Shambhav ,  Adam C. Cecil ,  Ryan Edward Schultz

IPC: F02D13/04 ,  F01L1/047 ,  F01L13/06 ,  F02D13/06 ,  F01L13/00 ,  F02D13/02

Abstract: An internal combustion engine system includes an engine with a plurality of pistons housed in respective ones of a plurality of cylinders, an air intake system to provide air to the plurality of cylinders through respective ones of a plurality of intake valves, an exhaust system to release exhaust gas from the plurality of cylinders through respective one of a plurality of exhaust valves. A valve train is provided for cylinder deactivation of a first part of the plurality of cylinders and compression release braking on a second part of the plurality of cylinders.

公开(公告)号：US11377985B2

公开(公告)日：2022-07-05

申请号：US16815444

申请日：2020-03-11

Applicant: Cummins Inc.

Inventor： Adam C. Cecil ,  Anshul Shambhav ,  Anthony Kyle Perfetto

IPC: F01L13/06 ,  F01L1/14 ,  F01L13/00 ,  F01L1/25 ,  F02D13/02 ,  F02D13/04 ,  F01L1/18 ,  F01L1/053 ,  F01N3/00 ,  F01L1/344

Abstract: A system includes an engine with a plurality of pistons housed in respective ones of a plurality of cylinders, an air intake system provides air to the plurality of cylinders through respective ones of a plurality of intake valves, an exhaust system to release exhaust gas from the plurality of cylinders through one of a plurality of exhaust valves, and a controller coupled to a sensor to control a switching tappet for compression release braking. Alternatively to a tappet, the system includes a roller finger follower controlling an opening and closing timing of exhaust valves, the roller finger follower has an inner roller follower arm adjacent an outer sliding follower, and a controller that in response to an engine braking request locks the inner roller follower arm with the outer sliding follower to contact a second cam lobe and open the exhaust valve during a compression stroke of the cylinder.

公开(公告)号：US20220145815A1

公开(公告)日：2022-05-12

申请号：US17648475

申请日：2022-01-20

Applicant: Cummins Inc.

Inventor： David J. Stroh ,  Kartavya Neema ,  Anthony Kyle Perfetto ,  Shashank Tamaskar

IPC: F02D41/00 ,  F02M26/01 ,  F02M26/04 ,  F02D41/14 ,  F02P5/145

Abstract: One embodiment is a system comprising an engine including a dedicated EGR cylinder configured to provide EGR to the engine via an EGR loop, a non-dedicated cylinder, a plurality of injectors structured to inject fuel into the dedicated EGR cylinder and the non-dedicated EGR cylinder, and an electronic control system operatively coupled with the fueling system and the ignition system. The electronic control system is configured to evaluate engine operating parameters including an engine load and an engine speed. The electronic control system is responsive to variation of the engine operating parameters to control operation of the fueling system to vary combustion in the at least one dedicated cylinder between rich of stoichiometric and stoichiometric.

公开(公告)号：US11268463B2

公开(公告)日：2022-03-08

申请号：US16906377

申请日：2020-06-19

Applicant: Cummins Inc.

Inventor： David J. Stroh ,  Kartavya Neema ,  Anthony Kyle Perfetto ,  Shashank Tamaskar

IPC: F02D41/00 ,  F02M26/01 ,  F02M26/04 ,  F02D41/14 ,  F02P5/145 ,  F02M26/00

Abstract: One embodiment is a system comprising an engine including a dedicated EGR cylinder configured to provide EGR to the engine via an EGR loop, a non-dedicated cylinder, a plurality of injectors structured to inject fuel into the dedicated EGR cylinder and the non-dedicated EGR cylinder, and an electronic control system operatively coupled with the fueling system and the ignition system. The electronic control system is configured to evaluate engine operating parameters including an engine load and an engine speed. The electronic control system is responsive to variation of the engine operating parameters to control operation of the fueling system to vary combustion in the at least one dedicated cylinder between rich of stoichiometric and stoichiometric.