公开(公告)号：US20170175616A1

公开(公告)日：2017-06-22

申请号：US15450227

申请日：2017-03-06

Applicant: IHI Corporation

Inventor： Yutaka MASUDA ,  Takahiro KUGE ,  Takayuki YAMADA ,  Takeshi YAMADA ,  Jun TERAMOTO

IPC: F02B25/04 ,  F02B43/02 ,  F02B75/04 ,  F02B23/10

CPC classification number: F02B25/04 ,  F02B23/10 ,  F02B31/00 ,  F02B43/02 ,  F02B75/04 ,  F02B75/044 ,  F02B2023/108 ,  F02D15/02 ,  F02D19/105 ,  Y02T10/125 ,  Y02T10/146 ,  Y02T10/32 ,  Y02T10/36

Abstract: A uniflow scavenging two-cycle engine includes an scavenging port having a swirling guide portion that guides scavenging gas into a cylinder in a direction inclined with respect to a radial direction of the cylinder, and a center guide portion that is provided to be closer to a crank side of the cylinder than the swirling guide portion and guides the scavenging gas further toward the center side of the cylinder than the swirling guide portion. At least a part of the center guide portion faces a piston when the piston is positioned at bottom dead center during the high compression ratio mode, and the center guide portion and the piston do not face each other or an area of facing the piston is smaller than that during the high compression ratio mode when the piston is positioned at bottom dead center during the low compression ratio mode.

公开(公告)号：US20170089255A1

公开(公告)日：2017-03-30

申请号：US15311795

申请日：2015-05-12

Applicant: Daimler AG

Inventor： Normann FREISINGER ,  Juergen FRIEDRICH

IPC: F02B37/02 ,  F02B31/00 ,  F02D13/02 ,  F02B37/00

CPC classification number: F02B37/025 ,  F02B25/145 ,  F02B31/00 ,  F02B37/001 ,  F02B2031/006 ,  F02D13/0242 ,  F02D13/0257 ,  F02M2200/247 ,  Y02T10/144 ,  Y02T10/146 ,  Y02T10/18

Abstract: A four-stroke reciprocating piston internal combustion engine is disclosed. The engine includes an even number of cylinders grouped into a first half and a second half. An exhaust gas turbocharger has a first turbine inlet and a second turbine inlet. Each of the cylinders has an intake duct with an intake opening, a first exhaust duct with a first exhaust opening, and a second exhaust duct with a second exhaust opening. The first half of cylinders is connected via the respective first exhaust ducts to the first turbine inlet and is connected via the second exhaust ducts to the second turbine inlet. The second half of cylinders is connected via the respective first exhaust ducts to the second turbine inlet and is connected via the respective second exhaust ducts to the first turbine inlet. The respective second exhaust openings have a larger diameter than the respective first exhaust openings.

公开(公告)号：US20150345420A1

公开(公告)日：2015-12-03

申请号：US14655515

申请日：2013-12-26

Applicant: DOOSAN INFRACORE CO., LTD.

Inventor： Ku Yeon HAN

IPC: F02F1/42 ,  F02B31/00

CPC classification number: F02B31/00 ,  F01L1/265 ,  F01L3/00 ,  F01L3/06 ,  F02B31/082 ,  F02B2031/006 ,  F02F1/4228 ,  F02F1/4235 ,  F02M35/1085 ,  F02M35/112 ,  Y02T10/146

Abstract: One exemplary embodiment of the present disclosure relates to an engine intake port structure. According to the engine intake port structure of the exemplary embodiment of the present disclosure, a chamfer is formed to be offset to either side from an end corner of an intake port. Accordingly, the inflow of a fuel gas is concentrated on a side in which an opening width of the chamfer is wide at the beginning of an opening stage when the intake port is opened/closed by a valve unit, and after the intake port is opened, the opening width is formed to be similar at four sides of the valve unit such that swirls formed in the fuel gas is weakened. That is, complete combustion of the fuel can be anticipated since the length of time during which the fuel gas remains in a combustion chamber is extended.

Abstract translation: 本公开的一个示例性实施例涉及发动机进气口结构。 根据本公开的示例性实施例的发动机进气口结构，形成斜面以从进气口的端角偏移到任一侧。 因此，当进气口被阀单元打开/关闭时，燃料气体的流入集中在开口阶段开始时斜面的开口宽度宽的一侧，并且在进气口打开之后 开口宽度在阀单元的四侧形成为相似，使得形成在燃料气体中的涡流变弱。 也就是说，由于燃料气体保持在燃烧室中的时间长度延长，所以可以预期燃料的完全燃烧。

公开(公告)号：US20150075489A1

公开(公告)日：2015-03-19

申请号：US14470888

申请日：2014-08-27

Applicant: Ford Global Technologies, LLC

Inventor： Jean-Philippe Puetzer

IPC: F02B31/04 ,  F01L3/20 ,  F02M35/10 ,  F01L3/06

CPC classification number: F01L3/20 ,  F01L3/06 ,  F01L3/12 ,  F01L3/16 ,  F02B31/00 ,  F02B2031/003 ,  F02M23/006 ,  F02M26/05 ,  F02M26/06 ,  F02M35/10072 ,  F02M35/10222 ,  Y02T10/146

Abstract: An intake system for an internal combustion engine is provided. The intake system may include an intake manifold fluidly connected to a cylinder, an intake valve coupled to the cylinder having an air supply duct longitudinally extending through a portion of a valve stem and having an outlet opening into the intake manifold and an inlet fluidly connected to a supply line fluidly connected to an intake passage downstream of a compressor and upstream of a throttle, and a shut-off valve positioned in the supply line configured to adjust the flow of gas through the supply line.

Abstract translation: 提供一种用于内燃机的进气系统。 进气系统可以包括流体地连接到气缸的进气歧管，连接到气缸的进气阀，其具有纵向延伸穿过阀杆的一部分的空气供应管道，并且具有进入歧管的出口和流体连接到 在压缩机下游和节气门上游流体地连接到进气通道的供应管线，以及位于供应管线中的截止阀，其被配置为调节通过供应管线的气体流。

公开(公告)号：US08950183B2

公开(公告)日：2015-02-10

申请号：US13607895

申请日：2012-09-10

Applicant: Jed W. Nixon ,  Keith G. Rochford

Inventor： Jed W. Nixon ,  Keith G. Rochford

IPC: F04D27/00 ,  F02M35/10 ,  F02B31/00 ,  F04D29/44 ,  F04D29/42 ,  F04D27/02 ,  F04D29/70

CPC classification number: F02M35/10262 ,  F02B31/00 ,  F02M35/10091 ,  F02M35/10157 ,  F02M35/10275 ,  F04D27/0207 ,  F04D27/0215 ,  F04D29/4213 ,  F04D29/441 ,  F04D29/701 ,  Y02T10/144

Abstract: An engine system includes a plurality of turbochargers each including a compressor outlet fluidly connected to an intake manifold of an engine. A plurality of intake conduits are configured to each convey incoming combustion air to one of the turbochargers, and each includes a casing, and a duct within the casing having a surge inhibitor mounted thereon which includes a flow-directing surface oriented obliquely to an axis of the duct to direct combustion air leaked back out of the compressor inlet away from a discharging stream of combustion air exiting the duct. Related methodology is also disclosed.

Abstract translation: 发动机系统包括多个涡轮增压器，每个涡轮增压器包括流体连接到发动机的进气歧管的压缩机出口。 多个进气管道被配置为将进入的燃烧空气传送到一个涡轮增压器，并且每个进气管道包括壳体，并且壳体内的管道具有安装在其上的浪涌抑制器，其包括朝向 用于引导燃烧空气的管道从压缩机入口泄漏出离开排出管道的燃烧空气的排放流。 还公开了相关方法。

公开(公告)号：US08869771B2

公开(公告)日：2014-10-28

申请号：US13214486

申请日：2011-08-22

Applicant: Tomoyuki Muraoka ,  Shinichi Murata ,  Shinji Matsumura

Inventor： Tomoyuki Muraoka ,  Shinichi Murata ,  Shinji Matsumura

IPC: F02B23/00 ,  F02B23/08 ,  F02B31/00

CPC classification number: F02B23/08 ,  F02B31/00 ,  Y02T10/125 ,  Y02T10/146

Abstract: A combustion chamber construction includes inlet and exhaust side sloping surfaces. The inlet side sloping surface is formed on one side of a pentroof apex portion as a boundary and which has an inlet port. The exhaust side sloping surface is formed on the other side of the pentroof apex portion as the boundary and which has an exhaust port. A flow improving portion is formed between the inlet port and exhaust port. The flow improving portion includes an inlet flow surface which is formed by recessing part of the inlet side sloping surface and an exhaust side guide surface. One end of the exhaust side guide surface is connected to an exhaust surface of the exhaust side sloping surface and the other end is connected to the inlet flow surface. An angle formed by the inlet flow surface and the exhaust side guide surface is smaller than or equal to an angle formed by the exhaust surface and the exhaust side guide surface.

Abstract translation: 燃烧室结构包括入口和排气侧倾斜表面。 入口侧倾斜面形成在作为边界的顶端顶端的一侧，并且具有入口。 排气侧倾斜面形成在作为边界的顶点顶端的另一侧，并且具有排气口。 在入口和排气口之间形成有流动改善部分。 流动改善部包括通过使入口侧倾斜面的一部分和排气侧引导面凹入而形成的入口流动面。 排气侧引导面的一端与排气侧倾斜面的排气面连接，另一端与入口流动面连接。 由入口流动表面和排气侧引导表面形成的角度小于或等于由排气表面和排气侧引导表面形成的角度。

公开(公告)号：US07347181B2

公开(公告)日：2008-03-25

申请号：US11536013

申请日：2006-09-28

Applicant: Hiroyuki Yamashita ,  Masatoshi Seto ,  Hiroyuki Yoshida

Inventor： Hiroyuki Yamashita ,  Masatoshi Seto ,  Hiroyuki Yoshida

IPC: F02B23/10 ,  F02B17/00

CPC classification number: F02B17/005 ,  F02B23/104 ,  F02B23/105 ,  F02B31/00 ,  F02B2023/103 ,  F02B2023/106 ,  F02D41/3029 ,  F02D41/402 ,  Y02T10/125 ,  Y02T10/146 ,  Y02T10/44

Abstract: A direct injection spark ignition engine comprises a cylinder, a piston, a fuel injector arranged at one side of a center axis of the cylinder for directly injecting fuel into the combustion chamber, and a smoothly continuous lowered recess formed on a top surface of the piston surface. The recess has a first cross section along a first plane including the cylinder center axis and a nozzle end of the injector. The first and second lower contours are smoothly connected with each other through a lowest point of the first cross section. The first lower contour is located at the one side of the cylinder center axis. The second lower contour is at the other side. The first contour has a larger radius than a radius of the second contour. Accordingly, the fuel spray having greater movement energy may impinge the recess at a regulated impinging angle.

Abstract translation: 直喷式火花点火发动机包括：气缸，活塞，布置在气缸中心轴线一侧的燃料喷射器，用于将燃料直接喷入燃烧室;以及平滑连续的下降凹部，其形成在活塞的顶表面上 表面。 该凹部沿着包括气缸中心轴线和喷射器的喷嘴端的第一平面具有第一横截面。 第一和第二下轮廓通过第一横截面的最低点彼此平滑地连接。 第一个下轮廓位于气缸中心轴的一侧。 第二个下部轮廓位于另一侧。 第一轮廓的半径大于第二轮廓的半径。 因此，具有较大移动能量的燃料喷雾可以以稳定的碰撞角度撞击凹部。

公开(公告)号：US20070251495A1

公开(公告)日：2007-11-01

申请号：US11796071

申请日：2007-04-26

Applicant: Alfred Elsasser ,  Rainer Otto

Inventor： Alfred Elsasser ,  Rainer Otto

IPC: F02M35/10

CPC classification number: F02D13/0203 ,  F02B31/00 ,  F02M35/108 ,  F02M35/1085 ,  Y02T10/146 ,  Y02T10/18

Abstract: A piston engine (10), in particular in a motor vehicle, has a plurality of cylinders (3) whose combustion chambers (4) are connected to a fresh gas system (5). The fresh gas system (5) has two gas paths, namely a full-load path (9) and a partial-load path (10), for at least one of the cylinders (3), through which the fresh gas (6) can be supplied to the respective combustion chamber (4). To this end, a valve arrangement (11) at the intake end is provided for controlling the fresh gas stream through the gas paths (9, 10) into the respective combustion chamber (4). For actuation of the valve arrangement (11), a control unit (13) is provided, the control unit being designed so that it permanently blocks the full-load path (9) through appropriate control of the valve arrangement (11) at partial load and actuates the partial-load path (10) for controlling the fresh gas stream and through appropriate control of the valve arrangement (11) at full load, it actuates at least the full-load path (9) for controlling the fresh gas stream.

Abstract translation: 特别是在机动车辆中的活塞式发动机（10）具有多个气缸（3），其燃烧室（4）连接到新鲜气体系统（5）。 新鲜气体系统（5）具有两个气体通路，即用于至少一个气缸（3）的全负荷通路（9）和部分负荷通路（10），新鲜气体（6） 可以供应到相应的燃烧室（4）。 为此，提供了一个进气端的阀门装置（11），用于控制通过气体通道（9,10）的新鲜气流进入相应的燃烧室（4）。 为了致动阀装置（11），提供了一个控制单元（13），该控制单元被设计成使得其在部分负载下通过适当地控制阀装置（11）来永久地阻塞满载路径（9） 并且致动用于控制新鲜气流的部分负载路径（10）并且通过在满负荷下适当地控制阀装置（11），其致动至少满负荷路径（9）以控制新鲜气流。

公开(公告)号：US20070227492A1

公开(公告)日：2007-10-04

申请号：US11692092

申请日：2007-03-27

Applicant: Michael C. Cheiky

Inventor： Michael C. Cheiky

IPC: F02B31/00 ,  F02M43/00 ,  F02M51/00 ,  F02M7/00

CPC classification number: G06F17/30247 ,  F02B3/06 ,  F02B23/0624 ,  F02B23/0669 ,  F02B31/00 ,  F02B2275/14 ,  F02D41/0025 ,  F02M27/02 ,  F02M51/0671 ,  F02M53/06 ,  F02M57/00 ,  F02M69/047 ,  Y02T10/123 ,  Y02T10/146 ,  Y02T10/16

Abstract: The present invention provides an injector-ignition fuel injection system for an internal combustion engine, comprising an ECU controlling a heated catalyzed fuel injector for heating and catalyzing a next fuel charge, wherein the ECU uses a one firing cycle look-ahead algorithm for controlling fuel injection. The ECU may further incorporate a look-up table, auto-tuning functions and heuristics to compensate for the rapid rotational de-acceleration that occurs near top dead center in lightweight small ultra-high compression engines as may be used with this invention. The ECU may further ramp heat input to the injector in response to engine acceleration requests and, under such circumstances, may extend its look-ahead for up to four firing cycles.

Abstract translation: 本发明提供了一种用于内燃机的喷射器点火燃料喷射系统，其包括控制加热催化燃料喷射器以加热和催化下一个燃料充量的ECU，其中ECU使用一个点火循环前瞻算法来控制燃料 注射。 ECU可以进一步包括查找表，自动调谐功能和启发式，以补偿在本发明可以使用的轻型小型超高压缩发动机中在上死点附近发生的快速旋转去加速度。 ECU可以响应于发动机加速请求而进一步斜坡进入喷射器的输入，并且在这种情况下，可以将其向前延伸多达四个发射周期。

公开(公告)号：US20050252463A1

公开(公告)日：2005-11-17

申请号：US11125143

申请日：2005-05-10

Applicant: Satoshi Matsui ,  Toshihiko Oka ,  Koichi Yoshimoto ,  Yoshinori Sakurai ,  Tetsushi Nagira ,  Kenichi Morishima

Inventor： Satoshi Matsui ,  Toshihiko Oka ,  Koichi Yoshimoto ,  Yoshinori Sakurai ,  Tetsushi Nagira ,  Kenichi Morishima

IPC: F02F1/38 ,  F01P3/02 ,  F02B31/00 ,  F02F1/24 ,  F02F1/26 ,  F02F1/36 ,  F02F1/40 ,  F02F1/42

CPC classification number: F02F1/40 ,  F02B31/00

Abstract: The bottom surface 18 of the cylinder head 10 is formed by an intake-side bottom surface 18a and an exhaust-side bottom surface 18b on which an intake port 13 and an exhaust port 15 are formed respectively. Further, a first wall 19 formed between an intake-side water jacket 16 and the intake-side bottom surface 18a is larger in thickness than a second wall 20 formed between an exhaust-side water jacket 17 and the exhaust-side bottom surface 18b. This structure can reduce an amount of HC included in exhaust gas.

Abstract translation: 气缸盖10的底表面18由分别形成有进气口13和排气口15的进气侧底面18a和排气侧底面18b形成。 此外，形成在进气侧水套16和进气侧底面18a之间的第一壁19的厚度大于形成在排气侧水套17和排气侧底面18之间的第二壁20 b。 该结构可以减少废气中包含的HC的量。