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公开(公告)号：US20190063390A1
公开(公告)日：2019-02-28
申请号：US16061703
申请日：2016-11-15
申请人： Robert Bosch GmbH
摘要： The invention relates to a fuel injector (10), in particular a common-rail injector, comprising a valve housing (11) which can be inserted into a first receiving bore section (107) of an internal combustion machine and which has a first valve housing section (12) that faces a combustion chamber (101) of an internal combustion engine in the assembled position, said valve housing section being in contact with the combustion chamber (101) at least in some regions. At least the first valve housing section (12) consists of metal, and the first valve housing section (12) is radially surrounded by a protective element (20) in the form of a protective sleeve (21). The protective sleeve (21) extends at least over a part of the axial length of the first valve housing section (12). According to the invention, the transition region between the protective sleeve (21) and the first valve housing section (12) is sealed on the protective sleeve (21) side paired with the combustion chamber (101).
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公开(公告)号：US10215082B2
公开(公告)日：2019-02-26
申请号：US15115222
申请日：2015-01-12
发明人： Stéphane Richard , Lionel Martinez , Olivier Laget
IPC分类号： F02B23/06 , F02M61/18 , F02M45/08 , F02B9/02 , F02B17/00 , F02F1/24 , F02F3/26 , F02M61/14 , F02B1/12
摘要： The present invention is a compression-ignition direct-injection internal-combustion engine comprising at least a cylinder (10), a cylinder head (12) carrying fuel injection means (14), a piston (16) sliding in the cylinder, a combustion chamber (34) limited on one side by an upper face (44) of the piston comprising a projection (48) extending in the direction of the cylinder head and located in a center of a concave bowl (46). The engine comprises injection projecting fuel in at least two fuel jet sheets. One of the zones comprises a toroidal volume (64) having center B with a flat bottom (56) into which fuel jets (40) of the lower sheet are injected so that an axis C1 of the lower sheet jets is contained between center B and projection (48).
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公开(公告)号：US10190557B2
公开(公告)日：2019-01-29
申请号：US14852999
申请日：2015-09-14
摘要： A cup is in a bottomed tubular shape to receive an injector along an injector axis. A bracket is extended from a sidewall of the cup. The bracket includes at least one arm and a body. The at least one arm connects the body with the cup. The body forms a screw opening configured to receive a screw along a screw axis. The body has a pivot end on an opposite side of the screw axis from the injector axis.
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公开(公告)号：US20180372045A1
公开(公告)日：2018-12-27
申请号：US16014767
申请日：2018-06-21
发明人： Seung Hyuk Oh , Young II Kang , Kwang Won Koo , Yeon Jee Oh
摘要： The present disclosure relates to a clip for an injector, in particular, the clip for the injector including a base portion and an elastic piece of the clip that elastically support the upper surface of a connector housing and the lower surface of an injector cup, thus attenuating fuel injection load. In addition, an engaging piece of the clip is inserted into an engaging portion of the injector cup, thus preventing the rotation of the injector.
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公开(公告)号：US10145344B2
公开(公告)日：2018-12-04
申请号：US15785611
申请日：2017-10-17
发明人： See Woo Park , Su Hwi Lee , Su Jin Yu , Keun Sik Lee
摘要： Disclosed herein is the structure of a GDI fuel delivery pipe. The structure of a GDI fuel delivery pipe includes: a main pipe configured to flow fuel through a hollow formed therein; a plurality of injector cups formed in cylindrical shapes having open lower ends, and configured to be coupled and fastened to the main pipe, to flow fuel therethrough, and to be coupled to respective injectors; a plurality of mount holders configured to form tubular parts each having a bolt hole in a lengthwise direction, and to be coupled and fastened to the main pipe; and fastening members configured to fasten the plurality of injector cups or mount holders to the main pipe by being coupled to the outer circumferential surface of the main pipe at both left and right ends thereof while surrounding the outer circumferences of the plurality of injector cups or mount holders.
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公开(公告)号：US20180223784A1
公开(公告)日：2018-08-09
申请号：US15875787
申请日：2018-01-19
发明人： Jeffrey David Willis
CPC分类号： F02M61/1813 , F02B23/0669 , F02M61/14 , F02M61/182 , F02M2200/46 , F02M2200/50 , Y02T10/125
摘要： Various methods and systems are provided for a fuel injector. In one example, a fuel injector includes a nozzle tip including a plurality of injection holes, a first needle biased against the nozzle tip via a first biasing member positioned within a first control volume, and a second needle surrounding a portion of the first needle and biased against the first needle and the nozzle tip via a second biasing member positioned within a second control volume. A needle actuator may be energized for different durations of time in order to move one or more of the first needle and the second needle relative to the nozzle tip.
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公开(公告)号：US10024274B2
公开(公告)日：2018-07-17
申请号：US15216073
申请日：2016-07-21
IPC分类号： F02B47/02 , F02M25/03 , F02M25/022 , F01N5/02 , F02D41/30 , F02D41/40 , F02M61/14 , F02D41/00
摘要： A control apparatus of an engine including a cylinder into which a piston is reciprocatably fitted is provided. The apparatus includes a fuel injector, a water injector, and a controller. The controller includes an engine load determining module for receiving a parameter and determining whether an engine operating range is within a low high load range or a high load range. Within the low load range, the controller controls the fuel injector to inject fuel into a center region of a combustion chamber. Within the high load range, the controller controls the fuel injector to inject the fuel in a period between a latter half of compression stroke and an early half of expansion stroke, and the water injector to inject supercritical water or subcritical water toward a crown surface of the piston in a period that is after the injection and before a mixture gas ignition.
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公开(公告)号：US20180187626A1
公开(公告)日：2018-07-05
申请号：US15398485
申请日：2017-01-04
申请人： Caterpillar Inc.
发明人： David T. Montgomery
CPC分类号： F02M61/14 , F02B23/0672 , F02B23/0693
摘要： A piston for an engine may include a body. The body may extend between a first and second axial region. A piston crown may be disposed at the first axial region symmetrically about a central longitudinal axis of the piston. A first bowl may be recessed into the body and may include a first curved wall transitioning into the piston crown at a bowl lip. The bowl lip may include a bowl lip diameter. The first curved wall may include a first wall diameter greater than the bowl lip diameter. A second bowl may be recessed into the body and disposed axially inwardly from the first bowl. The second bowl may include a second curved wall transitioning into the first bowl at a peak. The peak may include a peak diameter. The second curved wall may include a second wall diameter greater than the peak diameter.
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公开(公告)号：US09995266B2
公开(公告)日：2018-06-12
申请号：US15313795
申请日：2015-05-26
发明人： Kohei Kodama
IPC分类号： F02F7/00 , F02P5/152 , F02F1/24 , F02M61/14 , F02B23/10 , F02B77/08 , F02B17/00 , F02D35/02 , F02M61/04 , F02P13/00
CPC分类号： F02P5/152 , F02B17/005 , F02B23/104 , F02B77/085 , F02D35/027 , F02F1/242 , F02M61/04 , F02M61/14 , F02P13/00 , Y02T10/125
摘要： A cylinder head includes: a cylinder head body; multiple fuel ports extending to cylinders from a sidewall surface of the cylinder head body, the sidewall surface being located on one side of a longitudinal axis, on which intake ports are disposed; multiple injection valve attachment bosses projecting from the sidewall surface, surrounding openings of the fuel ports, and adapted to attach cylinder fuel injection valves to the fuel ports; and multiple projections projecting from the sidewall surface and disposed adjacent to the corresponding injection valve attachment bosses. A cylinder block includes: a cylinder block body; and a sensor attachment boss projecting from a sidewall surface of the cylinder block body, the sidewall surface being located on the one side of the longitudinal axis, on which the sidewall surface of the cylinder head body is located. The sensor attachment boss is adapted to attach a knock sensor to the cylinder block.
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公开(公告)号：US09976529B2
公开(公告)日：2018-05-22
申请号：US14368012
申请日：2012-12-13
发明人： Marco Mechi , Roberto Ricci , Nicola Iannaccone , Luigi Gargiulo
CPC分类号： F02M61/04 , F02M61/14 , F02M61/16 , F02M2200/16 , F02M2200/858
摘要： A valve assembly for an injection valve includes a valve body with a central longitudinal axis, the valve body having a valve body groove extending circumferentially around the valve body and being designed to take in a gasket, the valve body groove having a first wall section and a second wall section, the wall sections configured to be coupled to the gasket in a manner that the valve assembly is sealingly coupable with a cylinder head of a combustion engine, and an injection nozzle enabling a fluid flow through the valve assembly. The second wall section is arranged relative to the first wall section in axial direction away from the injection nozzle. The first wall section extends to a first radius and the second wall section extends to a second radius, and the first radius is bigger than the second radius.
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