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    Pipe mixer for an aftertreatment system
    61.
    发明授权
    Pipe mixer for an aftertreatment system 有权

    公开(公告)号：US10662851B2

    公开(公告)日：2020-05-26

    申请号：US16464041

    申请日：2017-12-08

    Applicant: Perkins Engines Company Limited

    Inventor： Srikanth Tummala ,  Xiao Cang

    IPC: F01N3/28 ,  B01F5/06 ,  B01D53/94 ,  B01F3/04 ,  B01F5/04 ,  F01N3/20 ,  F01N13/20 ,  B01F5/00

    Abstract: A pipe mixer for an aftertreatment system is described for mixing of a reductant and exhaust gas. The pipe mixer comprises a hollow body having a first end and a second end, the body surrounding a mixing channel; an injector mount positioned at the first end of the body; perforations provided on the body for entry of exhaust flow into the mixing channel; directional elements positioned on the body for directing exhaust flow towards the injector mount, the directional elements being positioned between the first end and the perforations wherein each directional element comprises an inlet formed on the body for entry of exhaust flow and a guide provided on an internal surface of the body, the guide having an outlet for exit of exhaust flow.

    Turbocharger assembly with oil carry-over protection
    62.
    发明授权
    Turbocharger assembly with oil carry-over protection 有权

    公开(公告)号：US10590857B2

    公开(公告)日：2020-03-17

    申请号：US15865656

    申请日：2018-01-09

    Applicant: Perkins Engines Company Limited

    Inventor： Lorna Thomas ,  Prabhu Ramasamy ,  Kevin C. Earle ,  Steven A. Gahlings

    IPC: F02C9/18 ,  F01D25/20 ,  F02C7/06 ,  F02C7/28 ,  F02C9/20 ,  F02C6/12 ,  F02B37/007 ,  F02B37/12 ,  F02B39/14 ,  F01D25/16 ,  F02B37/00

    Abstract: An assembly including a first turbocharger, the first turbocharger including a first turbine and a first compressor, the first turbine arranged in a turbine flowpath to be driven in rotation by an exhaust gas flowing at a variable flow rate through the turbine flowpath. The first compressor arranged in a compressor flowpath to be driven by the first turbine to urge an intake gas to flow through the compressor flowpath. The first turbine and first compressor being supported for rotation in bearings supplied via an oil flowpath at an oil pressure. The assembly further including a seal arranged between the oil flowpath and the compressor flowpath to resist leakage of the oil into the compressor flowpath and a flow control means configured to control a rotational speed of the first turbine and first compressor by controlling the flow of exhaust gas in the turbine flowpath.

    Mounting interface for exhaust gas treatment assembly
    63.
    发明授权
    Mounting interface for exhaust gas treatment assembly 有权

    公开(公告)号：US10422268B2

    公开(公告)日：2019-09-24

    申请号：US15816250

    申请日：2017-11-17

    Applicant: Perkins Engines Company Limited

    Inventor： Naseer Niaz

    IPC: F01N13/18 ,  F01N3/00

    Abstract: An exhaust gas treatment assembly comprises a housing which is radially inwardly deformed in a clamping region to retain a block of ceramic or other material which may be arranged as a filter or catalyst within the housing. The clamping region is deformed to a first surface level and includes local protuberances which extend radially outwardly to a second surface level and support a mounting surface for mounting the assembly in a mounting connector. The first surface level may vary to accommodate the dimensions of each individual block while the second surface level is fixed so that the mounting surface can fit in a mounting assembly with standardized dimensions.

    Piston Bowl for an Internal Combustion Engine
    65.
    发明申请
    Piston Bowl for an Internal Combustion Engine 审中-公开

    公开(公告)号：US20190032545A1

    公开(公告)日：2019-01-31

    申请号：US16077273

    申请日：2017-02-09

    Applicant: Perkins Engines Company Limited

    Inventor： Mohammad Parsi

    IPC: F02B23/06

    Abstract: A piston crown for a piston of an internal combustion engine, the piston crown extending in an axial direction along a central axis and in a radial direction outwardly from the central axis. The piston crown comprises an annular surface at a first end of the piston crown in the axial direction; and a piston bowl located radially within the annular surface and recessed relative to the first end of the piston crown. The piston bowl comprises a raised floor in a radially central region of the piston bowl; an arcuate surface located radially outward relative to the raised floor; and a lip chamfer surface extending radially outwardly from the arcuate surface and radially inwardly from the annular surface. A radially inmost portion of the lip chamfer surface is radially inside the radially outermost portion of the arcuate surface. A bowl maximum radius, Rmax, is defined as a distance in the radial direction between the central axis of the piston crown and an innermost edge of the annular surface. A bowl height, H, is defined as a distance in the axial direction between the annular surface and a surface of the piston bowl furthest from the annular surface. A lip re-entrancy angle is defined as an acute angle between a line extending in the radial direction at the first end of the piston crown and a tangent to the arcuate surface closest to the first end of the piston crown. The bowl maximum radius, Rmax, is between 2.3 and 3.2 times the bowl height, H, and the lip re-entrancy angle is between 40° and 80°.

    MOUNTING INTERFACE FOR EXHAUST GAS TREATMENT ASSEMBLY
    66.
    发明申请
    MOUNTING INTERFACE FOR EXHAUST GAS TREATMENT ASSEMBLY 审中-公开

    公开(公告)号：US20180156103A1

    公开(公告)日：2018-06-07

    申请号：US15816250

    申请日：2017-11-17

    Applicant: Perkins Engines Company Limited

    Inventor： Naseer Niaz

    IPC: F01N13/18

    Abstract: An exhaust gas treatment assembly comprises a housing which is radially inwardly deformed in a clamping region to retain a block of ceramic or other material which may be arranged as a filter or catalyst within the housing. The clamping region is deformed to a first surface level and includes local protuberances which extend radially outwardly to a second surface level and support a mounting surface for mounting the assembly in a mounting connector. The first surface level may vary to accommodate the dimensions of each individual block while the second surface level is fixed so that the mounting surface can fit in a mounting assembly with standardised dimensions.

    Heating and Cooling System for a Vehicle
    68.
    发明申请
    Heating and Cooling System for a Vehicle 审中-公开

    公开(公告)号：US20170120726A1

    公开(公告)日：2017-05-04

    申请号：US15307235

    申请日：2015-05-11

    Applicant: PERKINS ENGINES COMPANY LIMITED

    Inventor： Igor Strashny ,  Paul Moore

    IPC: B60H1/32 ,  F25B17/08 ,  F25B27/02 ,  B60H1/22

    Abstract: A heating and cooling system for a vehicle having an internal combustion engine is provided. The system comprises at least one exhaust pipe conveying exhaust gases away from the engine, and a reactor vessel located in the exhaust pipe and containing an absorbent salt and a refrigerant fluid. A condenser is in fluid communication with the reactor vessel, and receives refrigerant vapour from the reactor when exhaust gases heat the reactor vessel in the exhaust pipe. An evaporator is locatable in a cab of the vehicle and is in fluid communication with the condenser and the reactor vessel. The evaporator receives condensed refrigerant from the condenser so as to cool the air surrounding the evaporator, and returning refrigerant vapour to the reactor vessel. A method of cooling a driver environment of a vehicle having an internal combustion engine is also provided, as is a vehicle incorporating the heating and cooling system.

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