公开(公告)号：US11555437B2

公开(公告)日：2023-01-17

申请号：US17247311

申请日：2020-12-07

Applicant: Caterpillar Inc.

Inventor： Keith Daniel Hogan ,  Yong Yi

IPC: F01N13/08 ,  F01N13/18 ,  F01N3/20

Abstract: An exhaust pipe includes a first end, a second end, and a wall connecting the first end to the second end. The first end has a first opening, and the second end has a second opening that fluidly communicates with the first opening to define a bore. The wall includes an inner curved second and an outer curved section that includes an indentation. The indentation includes a first inwardly extending part and a second inwardly extending part. The second inwardly extending part includes a through hole having an inner opening and an outer opening. The inner opening is located between the outer opening and the second opening. A diameter of the outer opening is less than a diameter of the inner opening. A thickness of the second inwardly extending part is less than the diameter of the outer opening.

公开(公告)号：US10273848B2

公开(公告)日：2019-04-30

申请号：US15264695

申请日：2016-09-14

Applicant: Caterpillar Inc.

Inventor： Keith Daniel Hogan ,  Marilyn E. Worley

IPC: F01N3/20 ,  F02B37/00 ,  F01N11/00

Abstract: A reductant delivery system for an engine system. The engine system includes an engine having an exhaust conduit and a turbocharger with a compressor. The reductant delivery system having an injector, a storage system, a sensor and a controller. The injector is configured to inject a reductant into the exhaust conduit. The storage system stores the reductant and is configured to receive pressurized air from the compressor. The sensor is configured to determine a pressure of the pressurized air in the storage system. The controller is in communication with the sensor and is configured to increase a power output of the engine in response to the pressure being below a desired pressure.

公开(公告)号：US20180073407A1

公开(公告)日：2018-03-15

申请号：US15264695

申请日：2016-09-14

Applicant: Caterpillar Inc.

Inventor： Keith Daniel Hogan ,  Marilyn E. Worley

IPC: F01N3/20

CPC classification number: F01N3/206 ,  F01N11/002 ,  F01N2390/02 ,  F01N2610/01 ,  F02B37/00 ,  Y02T10/144

Abstract: A reductant delivery system for an engine system. The engine system includes an engine having an exhaust conduit and a turbocharger with a compressor. The reductant delivery system having an injector, a storage system, a sensor and a controller. The injector is configured to inject a reductant into the exhaust conduit. The storage system stores the reductant and is configured to receive pressurized air from the compressor. The sensor is configured to determine a pressure of the pressurized air in the storage system. The controller is in communication with the sensor and is configured to increase a power output of the engine in response to the pressure being below a desired pressure.