公开(公告)号：US20030168037A1

公开(公告)日：2003-09-11

申请号：US10387579

申请日：2003-03-14

Applicant: Cummins Inc.

Inventor： Axel O. zur Loye ,  Larry J. Brackney ,  Cariappa M. Chenanda ,  Robert M. Hurst ,  Lester L. Peters ,  Patrick M. Pierz ,  John F. Wright

IPC: F02B017/00

CPC classification number: F02D13/0203 ,  F01N3/28 ,  F02B1/04 ,  F02B1/12 ,  F02B3/06 ,  F02B17/005 ,  F02B23/0672 ,  F02B29/0406 ,  F02B29/0418 ,  F02B37/18 ,  F02B37/22 ,  F02B69/00 ,  F02B2075/125 ,  F02D9/04 ,  F02D13/0215 ,  F02D13/0234 ,  F02D13/0269 ,  F02D15/04 ,  F02D19/061 ,  F02D19/0631 ,  F02D19/0647 ,  F02D19/0689 ,  F02D19/0692 ,  F02D19/081 ,  F02D19/105 ,  F02D35/02 ,  F02D35/022 ,  F02D35/023 ,  F02D35/025 ,  F02D35/028 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/3035 ,  F02D41/3064 ,  F02D41/3094 ,  F02D41/40 ,  F02D41/401 ,  F02D41/402 ,  F02D41/403 ,  F02D41/405 ,  F02D2041/389 ,  F02D2250/18 ,  F02M26/01 ,  F02M26/05 ,  F02M26/10 ,  F02M43/00 ,  F02M45/02 ,  F02M69/044 ,  F02M69/045 ,  F02M69/046 ,  F02N11/04 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/128 ,  Y02T10/142 ,  Y02T10/144 ,  Y02T10/36 ,  Y02T10/42 ,  Y02T10/44

Abstract: A multi-mode internal combustion engine and method of operating the engine is provided which is capable of operating in a variety of modes based on engine operating conditions to enhance fuel efficiency and reduce emissions. The multi-mode engine include a fuel delivery system and control system for permitting the engine to operate in a diesel mode, a homogeneous charge dual fuel transition mode, a spark ignition or liquid spark ignition mode and/or a premixed charge compression ignition mode. The control system and method permits the engine operation to transfer between the various modes in an effective and efficient manner by controlling one or more fuel delivery devices or other engine components so as to move along a continuous transfer path while maintaining engine torque at a substantially constant level.

公开(公告)号：US20040149255A1

公开(公告)日：2004-08-05

申请号：US10762354

申请日：2004-01-23

Applicant: Cummins Inc.

Inventor： Axel O. zur Loye ,  Larry J. Brackney ,  Cariappa M. Chenanda ,  Robert M. Hurst ,  Lester L. Peters ,  Patrick M. Pierz ,  John F. Wright

IPC: F02B017/00

CPC classification number: F02D13/0203 ,  F01N3/28 ,  F02B1/04 ,  F02B1/12 ,  F02B3/06 ,  F02B17/005 ,  F02B23/0672 ,  F02B29/0406 ,  F02B29/0418 ,  F02B37/18 ,  F02B37/22 ,  F02B69/00 ,  F02B2075/125 ,  F02D9/04 ,  F02D13/0215 ,  F02D13/0234 ,  F02D13/0269 ,  F02D15/04 ,  F02D19/061 ,  F02D19/0631 ,  F02D19/0647 ,  F02D19/0689 ,  F02D19/0692 ,  F02D19/081 ,  F02D19/105 ,  F02D35/02 ,  F02D35/022 ,  F02D35/023 ,  F02D35/025 ,  F02D35/028 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/3035 ,  F02D41/3064 ,  F02D41/3094 ,  F02D41/40 ,  F02D41/401 ,  F02D41/402 ,  F02D41/403 ,  F02D41/405 ,  F02D2041/389 ,  F02D2250/18 ,  F02M26/01 ,  F02M26/05 ,  F02M26/10 ,  F02M43/00 ,  F02M45/02 ,  F02M69/044 ,  F02M69/045 ,  F02M69/046 ,  F02N11/04 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/128 ,  Y02T10/142 ,  Y02T10/144 ,  Y02T10/36 ,  Y02T10/42 ,  Y02T10/44

Abstract: A multi-mode internal combustion engine and method of operating the engine is provided which is capable of operating in a variety of modes based on engine operating conditions to enhance fuel efficiency and reduce emissions. The multi-mode engine include a fuel delivery system and control system for permitting the engine to operate in a diesel mode, a homogeneous charge dual fuel transition mode, a spark ignition or liquid spark ignition mode and/or a premixed charge compression ignition mode. The control system and method permits the engine operation to transfer between the various modes in an effective and efficient manner by controlling one or more fuel delivery devices or other engine components so as to move along a continuous transfer path while maintaining engine torque at a substantially constant level.

公开(公告)号：US20040211846A1

公开(公告)日：2004-10-28

申请号：US10423010

申请日：2003-04-25

Applicant: Cummins Inc.

Inventor： Cariappa M. Chenanda ,  David L. Buchanan ,  Lester L. Peters

IPC: B05B015/00 ,  F02M061/00

CPC classification number: F02M53/043 ,  F02M55/002 ,  F02M55/004 ,  F02M59/466 ,  F02M59/468 ,  F02M61/042 ,  F02M63/0225

Abstract: A fuel injector is provided with a lower nozzle body which is cooled with a small amount of metered fuel. In one embodiment, a blind passage is formed to extend from the upper portion to the lower end of the injector nozzle valve element. A transverse passage is formed in the nozzle valve element connecting the blind passage and the nozzle bore. Rail pressure causes a metered amount of fuel to flow through the nozzle bore, the transverse passage and upwardly along the blind passage to the drain passage. Inward cooling occurs by providing more surface area over which the fuel flows. In another embodiment, a sleeve is formed to fit over an existing nozzle to form a passage surrounding the injector tip. An orifice is located in the nozzle housing to connect the nozzle cavity with the annular passage thereby providing a small amount of fuel to drain.

Abstract translation: 燃料喷射器设置有用少量计量燃料冷却的下喷嘴体。 在一个实施例中，盲通道形成为从喷射器喷嘴阀元件的上部延伸到下端。 在连接盲通道和喷嘴孔的喷嘴阀元件中形成横向通道。 轨道压力导致计量的燃料流过喷嘴孔，横向通道并沿着盲通道向上流动到排水通道。 通过提供更多的燃料流过的表面积来进行向内冷却。 在另一个实施例中，套筒形成为装配在现有喷嘴上方以形成围绕喷射器尖端的通道。 孔口位于喷嘴壳体中，以将喷嘴腔与环形通道连接，从而提供少量燃料排出。