公开(公告)号：US20210010403A1

公开(公告)日：2021-01-14

申请号：US16955519

申请日：2019-01-08

Applicant: PERKINS ENGINES COMPANY LIMITED

Inventor： Richard PILL ,  Srikanth TUMMALA

IPC: F01N3/20 ,  F01N3/28

Abstract: A flowhood assembly 1 comprises an injector 30 which is fixable to a mount 50 in a number of alternative mounted positions defined by rotation of the injector about an injection axis X2 relative to the mount, The injector 30 includes one or more coolant ports 34, 35 which are connected in use to a supply of liquid coolant C. The mount 50 is fixable to a flowhood 10 in an upright, design orientation and in alternative connected positions defined by rotation of the flowhood 10 relative to the mount 50 about a connection axis X1. In a normal use position of the assembly the connection axis X1 of the flowhood is arranged at a predefined angle, optionally 0°, relative to a nominal horizontal plane P1. The injector 30 is not fixable to the mount 50 other than in the alternative mounted positions. In use in the normal use position, and in each of the alternative mounted positions of the injector, the injection axis X2 of the injector is oriented downwardly away from the injector relative to the horizontal plane P1, and at least one of the coolant ports 34, 35 is arranged above the horizontal plane P1 which passes through the injection axis X2 at an outlet end 32 of the nozzle.

公开(公告)号：US20210293171A1

公开(公告)日：2021-09-23

申请号：US17261482

申请日：2019-07-15

Applicant: Perkins Engines Company Limited

Inventor： Mark ALDRED ,  Andrew HOWELL ,  Naseer NIAZ ,  Srikanth TUMMALA ,  Jean-Yves TILLIER ,  Mathew JOHNSON ,  Edward Long ,  Paul Gaynor

IPC: F01N3/28 ,  F01N13/00 ,  B01F5/06

Abstract: An exhaust mixer apparatus, emissions cleaning module, and a method of manufacturing the exhaust mixer apparatus is provided. The exhaust mixer apparatus comprises an exhaust conduit, a first exhaust mixer and a second exhaust mixer. The exhaust conduit is configured to extend in an elongate direction comprising an inlet and an outlet for transporting exhaust fluid. The first exhaust mixer comprises a plurality of elongate mixing blades each having a length extending in the elongate direction. The elongate mixing blades are connected together along at least part of their lengths and arranged about the elongate direction, each elongate mixing blade comprising an outer edge extending in the elongate direction. The elongate mixing blades are twisted along their lengths such that the outer edge of each elongate mixing blade is rotated about the elongate direction. The exhaust conduit is configured to locate the first exhaust mixer in an upstream location of the exhaust conduit. The second exhaust mixer is configured to impart a swirl on an exhaust fluid when in use. The second exhaust mixer is arranged in the exhaust conduit downstream and spaced apart from the first exhaust mixer in the elongate direction.