公开(公告)号：US20220290594A1

公开(公告)日：2022-09-15

申请号：US17663562

申请日：2022-05-16

Applicant: Cummins Inc.

Inventor： Kunlun Liu ,  Xiaobo Song ,  Xing Jin ,  Kristopher R. Bare ,  Sriram S. Popuri ,  Scott Robert Bardakjy ,  Agneya Turlapati

IPC: F01N3/20 ,  F02D41/06 ,  B01D53/94

Abstract: A recycling loop configuration of an exhaust gas aftertreatment system decreases a level of system-out NOx emissions of an engine. An apparatus including the configuration has an exhaust gas recycling system having a closed gas recycling loop system configured to heat gas circulating within the loop, and a blower for circulating gas within the loop. A method for operating the engine includes preheating at least one aftertreatment component of an exhaust gas aftertreatment system of the engine by exposing the component to heated gas circulating in a closed gas recycling loop.

公开(公告)号：US20180372013A1

公开(公告)日：2018-12-27

申请号：US16075132

申请日：2016-02-04

Applicant: CUMMINS INC.

Inventor： Agneya Turlapati ,  Robin J. Bremmer ,  Philipe F. Saad

IPC: F02D41/14 ,  F02D41/00 ,  F02D35/02

Abstract: A system and method for self-adjusting engine performance parameters in response to fuel quality variations that includes an exhaust sensor for measuring a level of carbon dioxide present in an exhaust manifold, at least one of a knock sensor and a cylinder pressure transducer for determining a location of peak pressure and a centroid, respectively, a controller in communication with the exhaust sensor and the at least one of the knock sensor and the cylinder pressure transducer, the controller correlating a methane number of the fuel used by the engine to a brake specific carbon dioxide value calculated using the level of carbon dioxide measured by the exhaust sensor and the at least one of the centroid and the location of peak pressure, and an adjusting mechanism, wherein the adjusting mechanism adjusts an engine performance parameter based on the determined methane number.

公开(公告)号：US11909078B2

公开(公告)日：2024-02-20

申请号：US17591532

申请日：2022-02-02

Applicant: CUMMINS INC.

Inventor： Archit Koti ,  Rohit Saha ,  Sumit Tripathi ,  Christopher Nelson ,  Agneya Turlapati ,  Jairo A. Martinez Garcia ,  Sachin Vinayak Damle ,  Suhas Deutkar ,  Pradheepram Ottikkutti ,  Sunil Suryakant Bahulikar ,  Sandesh Sadawarte

IPC: H01M8/04 ,  H01M8/04029 ,  H01M8/04007

CPC classification number: H01M8/04029 ,  H01M8/04059 ,  H01M8/04067 ,  H01M2250/20

Abstract: The present disclosure generally relates to systems and methods of using water output from a fuel cell system to aid in heat dissipation and evaporative cooling of radiators.

公开(公告)号：US11814995B2

公开(公告)日：2023-11-14

申请号：US17663562

申请日：2022-05-16

Applicant: Cummins Inc.

Inventor： Kunlun Liu ,  Xiaobo Song ,  Xing Jin ,  Kristopher R. Bare ,  Sriram S. Popuri ,  Scott Robert Bardakjy ,  Agneya Turlapati

IPC: F01N3/20 ,  B01D53/94 ,  F02D41/06 ,  F01N9/00

CPC classification number: F01N3/2006 ,  B01D53/9418 ,  F01N3/2066 ,  F02D41/064 ,  F01N3/206 ,  F01N9/00 ,  F01N2240/16 ,  F01N2260/06 ,  F01N2270/04 ,  F01N2270/08 ,  F01N2270/10 ,  F01N2610/1433

Abstract: A recycling loop configuration of an exhaust gas aftertreatment system decreases a level of system-out NOx emissions of an engine. An apparatus including the configuration has an exhaust gas recycling system having a closed gas recycling loop system configured to heat gas circulating within the loop, and a blower for circulating gas within the loop. A method for operating the engine includes preheating at least one aftertreatment component of an exhaust gas aftertreatment system of the engine by exposing the component to heated gas circulating in a closed gas recycling loop.

公开(公告)号：US20210215094A1

公开(公告)日：2021-07-15

申请号：US17058520

申请日：2019-07-24

Applicant: Cummins Inc.

Inventor： Carlos A. Lana ,  Trideep Singh ,  Veronica S. Perks ,  J. Steven Kolhouse ,  Robin J. Bremmer ,  Philipe F. Saad ,  Agneya Turlapati ,  Milan Visaria

IPC: F02B39/10 ,  F02B37/10

Abstract: The present disclosure provides an engine fueling system that includes multiple fueling valves such that the fuel transport delay can be reduced. The fueling system may also include an electrically driven compressor to improve engine properties during engine startup. For example, an engine fueling system comprising: a first compressor; an intake air throttle operably coupled to the first compressor and positioned downstream of the first compressor; a primary fuel path in communication with a fuel supply, wherein a first fuel from the fuel supply is injected into the primary fuel path upstream from the compressor; and a secondary fuel path in communication with the fuel supply, wherein a second fuel from the fuel supply is injected into the secondary fuel path downstream from the compressor.

公开(公告)号：US20240167439A1

公开(公告)日：2024-05-23

申请号：US18056485

申请日：2022-11-17

Applicant: Cummins Inc.

Inventor： Pallav Pathak ,  Robert J. Thomas ,  Andrew Guy Kitchen ,  Balaji Sampathnarayanan ,  Jisang Sun ,  Carlos Alcides Lana ,  Philipe F. Saad ,  Agneya Turlapati ,  Milan Khushal Visaria

IPC: F02M31/20 ,  F02B33/44

CPC classification number: F02M31/205 ,  F02B33/44

Abstract: Control of an internal combustion engine system in response to a condensation condition associated with a charge air cooler is disclosed. One or more operating parameters of the internal combustion engine are monitored to the control charge air cooler coolant inlet temperature to keep the charge temperature above the estimated dew point to reduce or prevent condensation upstream of the intake manifold.

公开(公告)号：US20240026808A1

公开(公告)日：2024-01-25

申请号：US18266192

申请日：2021-12-08

Applicant: Cummins Inc.

Inventor： Kristopher R. Bare ,  Michael J. Cunningham ,  Jennifer Kay Light-Holets ,  Xiaobo Song ,  Agneya Turlapati

IPC: F01N3/20 ,  F01N9/00 ,  F01N11/00

CPC classification number: F01N3/208 ,  F01N9/007 ,  F01N11/00 ,  F01N2250/02 ,  F01N2560/026 ,  F01N2900/08 ,  F01N2900/1411 ,  F01N2610/02 ,  F01N2900/0412

Abstract: A system includes an exhaust aftertreatment system coupled to an engine, and a controller including at least one processor coupled to at least one memory device storing instructions that, when executed by the at least one processor, cause the controller to perform certain operations. The operations include estimating an aging of the exhaust aftertreatment system, and adjusting at least one of an entry temperature threshold or an exit temperature threshold for a thermal management mode for the exhaust aftertreatment system based on the aging of the exhaust aftertreatment system.

公开(公告)号：US10823096B2

公开(公告)日：2020-11-03

申请号：US16075132

申请日：2016-02-04

Applicant: CUMMINS INC.

Inventor： Agneya Turlapati ,  Robin J. Bremmer ,  Philipe F. Saad

IPC: F02D41/14 ,  F02D35/02 ,  F02D41/00 ,  F02D19/06

Abstract: A system and method for self-adjusting engine performance parameters in response to fuel quality variations that includes an exhaust sensor for measuring a level of carbon dioxide present in an exhaust manifold, at least one of a knock sensor and a cylinder pressure transducer for determining a location of peak pressure and a centroid, respectively, a controller in communication with the exhaust sensor and the at least one of the knock sensor and the cylinder pressure transducer, the controller correlating a methane number of the fuel used by the engine to a brake specific carbon dioxide value calculated using the level of carbon dioxide measured by the exhaust sensor and the at least one of the centroid and the location of peak pressure, and an adjusting mechanism, wherein the adjusting mechanism adjusts an engine performance parameter based on the determined methane number.

公开(公告)号：US10648374B2

公开(公告)日：2020-05-12

申请号：US15746137

申请日：2016-08-11

Applicant: CUMMINS INC.

Inventor： Philipe F. Saad ,  Edward J. Lyford-Pike ,  Milan K. Visaria ,  Agneya Turlapati ,  Anamitra Bhattacharyya ,  Jason R. Griffin ,  Brendan C. Norton

IPC: F01L1/34 ,  F01L1/344 ,  F02B29/04 ,  F02D13/02 ,  F02D19/02 ,  G06F13/00 ,  F01L1/02 ,  F01L1/14 ,  F01L1/047

Abstract: A spark-ignited gas engine system comprises a combustion chamber defined by a piston, a head with a spark plug mechanism, and a cylinder having an associated intake valve and an associated exhaust valve, into which a mixture of combustible gas and air is entered via an intake manifold of the engine to drive a crankshaft. The system further comprises at least one turbocharger to compress the mixture. The system further comprises at least one camshaft, driven by the crankshaft via a gear assembly connected to the crankshaft, that comprises at least one cam that actuates the intake valve and the exhaust valve, at least one camphaser, coupled to the crankshaft via the gear assembly, and a controller to adjust a cam angle operation of the intake valve and the exhaust valve by adjusting the camphaser to a desired phase position to meet a target rotational phase of the camshaft.

公开(公告)号：US20250050874A1

公开(公告)日：2025-02-13

申请号：US18717989

申请日：2022-12-13

Applicant: Cummins Inc.

Inventor： Aaron William Beinborn ,  David P. Genter ,  Carlos Alcides Lana ,  Kenneth M. Follen ,  Harsha Ravindra Ademane ,  Ke Li ,  Agneya Turlapati

IPC: B60W30/09

Abstract: A vehicle system includes a camera coupled to a controller. The controller includes at least one processor coupled to at least one memory device storing instructions that, when executed by the at least one processor, cause controller to perform operations including: receive data from the camera regarding at least one of an internal or an external condition of the vehicle system; determine that the data is indicative of a certain predefined condition; and adjust operation of a vehicle powertrain based on the determined certain predefined condition.