公开(公告)号：US11859574B2

公开(公告)日：2024-01-02

申请号：US17452345

申请日：2021-10-26

Applicant: Mazda Motor Corporation

Inventor： Noriyuki Ota ,  Yoshihisa Nou

IPC: F02D41/40 ,  F02F1/24 ,  F02P3/06 ,  F02P5/15 ,  F02D41/38

CPC classification number: F02D41/402 ,  F02F1/24 ,  F02P3/06 ,  F02P5/1502 ,  F02D2041/389 ,  F02F2001/241

Abstract: A method of controlling an engine is provided, which includes the steps of injecting main fuel by a fuel injector during an intake stroke or a compression stroke, providing a mixture gas containing fuel and air inside a cylinder, applying by an ignition device a high voltage between electrodes of a spark plug at a timing when the mixture gas is not ignited, detecting a parameter related to a current value of an electric-discharge channel generated between the electrodes, determining by a controller whether the detected parameter is within a range between a first threshold and a second threshold to determine a flowing state of a vortex inside the cylinder, operating the spark plug to carry out a supplemental ignition when the parameter is determined to be outside the range, and igniting the mixture gas by operation of the spark plug after the supplemental ignition.

公开(公告)号：US20170167456A1

公开(公告)日：2017-06-15

申请号：US15210186

申请日：2016-07-14

Applicant: Hyundai Motor Company

Inventor： Hyunsung JUNG ,  Jae Hyeok Song

IPC: F02M43/04 ,  F02F1/42 ,  F02D19/06

CPC classification number: F02M43/04 ,  F02B23/0624 ,  F02B2023/085 ,  F02B2275/48 ,  F02D19/0649 ,  F02D19/0689 ,  F02D19/0692 ,  F02D19/081 ,  F02D41/0025 ,  F02D41/345 ,  F02D41/401 ,  F02F1/242 ,  F02F1/4235 ,  F02F1/4285 ,  F02F2001/241 ,  F02M26/06 ,  F02M69/046 ,  Y02T10/125 ,  Y02T10/36 ,  Y02T10/44

Abstract: A gasoline-diesel complex combustion engine may include a cylinder including a cylinder body in which a combustion chamber is formed to generate a driving power by combusting a gasoline fuel and a diesel fuel and a cylinder head formed to cover an upper portion of the cylinder body, a pair of intake ports formed in the cylinder head, a pair of exhaust ports formed in the cylinder head, a diesel injector disposed in a center of the cylinder head, a pair of spark plugs disposed on opposite sides of the diesel injector, a first intake pipe and a second intake pipe mounted in the intake ports, an exhaust pipe mounted in the exhaust ports, a pair of intake valves disposed in the first and second intake pipes, and a gasoline injector disposed in the first and second intake pipes to inject the gasoline fuel into the combustion chamber.

公开(公告)号：US20150361867A1

公开(公告)日：2015-12-17

申请号：US14763888

申请日：2013-01-31

Applicant: Ryo MICHIKAWAUCHI

Inventor： Ryo MICHIKAWAUCHI

IPC: F02B23/06

CPC classification number: F02B23/0645 ,  F02B23/0621 ,  F02B23/0651 ,  F02B23/0669 ,  F02B23/0696 ,  F02F2001/241 ,  Y02T10/125

Abstract: An internal combustion engine of a compression ignition type includes: a fuel injection valve that injects fuel to a combustion chamber; a cylinder head that includes a central portion as a portion forming the combustion chamber; and a piston that includes a cavity exposed to the combustion chamber.

Abstract translation: 压缩点火式的内燃机包括：向燃烧室喷射燃料的燃料喷射阀; 气缸盖，其包括形成燃烧室的部分的中心部分; 以及包括暴露于燃烧室的空腔的活塞。

公开(公告)号：US20100212614A1

公开(公告)日：2010-08-26

申请号：US12709959

申请日：2010-02-22

Applicant: Shinichi MURATA

Inventor： Shinichi MURATA

IPC: F01L1/34

CPC classification number: F01L1/344 ,  F01L1/267 ,  F01L1/34413 ,  F01L2001/0473 ,  F01L2001/0537 ,  F01L2800/06 ,  F02B31/02 ,  F02D13/0234 ,  F02D13/0257 ,  F02F1/4214 ,  F02F2001/241 ,  Y02T10/146 ,  Y02T10/18

Abstract: In an internal combustion engine with a variable valve gear, which comprises a first intake valve and a second intake valve for each cylinder, configured to be driven by a first intake cam and a second intake cam, respectively, and a cam phase change mechanism configured to vary at least the phase of the second intake cam, the second intake cam is set so that the open period of the second intake valve is longer than that of the first intake valve.

Abstract translation: 在具有可变气门齿轮的内燃机中，其包括分别由第一进气凸轮和第二进气凸轮驱动的用于每个气缸的第一进气门和第二进气门，以及凸轮相变机构 至少改变第二进气凸轮的相位，第二进气凸轮被设定为使得第二进气门的打开时段比第一进气门的打开时间长。

公开(公告)号：US07681564B2

公开(公告)日：2010-03-23

申请号：US11814263

申请日：2006-01-07

Applicant: Markus Umierski ,  Bertold Hüchtebrock

Inventor： Markus Umierski ,  Bertold Hüchtebrock

IPC: F02B23/08

CPC classification number: F02B23/08 ,  F02B23/101 ,  F02B2023/106 ,  F02B2275/40 ,  F02F2001/241 ,  Y02T10/125 ,  Y02T10/146

Abstract: An internal combustion engine has at least one cylinder, wherein in the cylinder there is a piston, which has a recess. Furthermore, the internal combustion engine has a cylinder head, which has the shape of a roof complementary to the roof-shaped geometry of the piston with a first and second side converging in the shape of a gable, with the piston and the cylinder head defining a top side and a bottom side of a combustion chamber. The internal combustion engine has an ignition device, which is arranged at least approximately in the center in the roof shape. The cylinder further has preferably two inlet valves, which are arranged in the first side, and also preferably two outlet valves, which are arranged in the second side. The recess extends past both sides, wherein the recess includes at the side approximately vertically descending sides and a base. The piston further has at least two, preferably four quench zones, which are at least partially separated from each other by valve pockets for valves.

Abstract translation: 一种内燃机具有至少一个气缸，其中在气缸中有一个具有凹部的活塞。 此外，内燃机具有气缸盖，其具有与活塞的屋顶形状互补的屋顶的形状，其中第一和第二侧会聚成山形，活塞和气缸盖限定 燃烧室的顶侧和底侧。 内燃机具有点火装置，该点火装置至少大致位于屋顶形状的中央。 气缸还优选具有布置在第一侧中的两个入口阀，并且还优选地布置在第二侧中的两个出口阀。 凹部延伸穿过两侧，其中凹部包括在大致垂直下降的侧面和底部。 活塞还具有至少两个，优选四个骤冷区，它们通过用于阀的阀口至少部分地分开。

公开(公告)号：US20050109328A1

公开(公告)日：2005-05-26

申请号：US10968919

申请日：2004-10-21

Applicant: Tomoharu Sakai ,  Takeshi Hasegawa ,  Takafumi Shigemori ,  Toshiaki Umemura ,  Yoshiyuki Hoshiba ,  Katsuhiko Miyamoto ,  Kiyotaka Hosono ,  Hideki Miyamoto ,  Yu Yokoyama

Inventor： Tomoharu Sakai ,  Takeshi Hasegawa ,  Takafumi Shigemori ,  Toshiaki Umemura ,  Yoshiyuki Hoshiba ,  Katsuhiko Miyamoto ,  Kiyotaka Hosono ,  Hideki Miyamoto ,  Yu Yokoyama

IPC: F02F3/28 ,  F02B17/00 ,  F02B23/00 ,  F02B23/08 ,  F02B23/10 ,  F02F3/12 ,  F02F3/26

CPC classification number: F02B23/08 ,  F02B17/005 ,  F02B2023/106 ,  F02B2275/40 ,  F02F3/26 ,  F02F2001/241 ,  Y02T10/125

Abstract: There is provided a combustion chamber structure in an internal combustion engine in which, at a peripheral portion of a combustion chamber, a gap between a cylinder head lower face and a piston upper face is small in intake-to-intake and exhaust-to-exhaust zones and gradually increases toward an intake-to-exhaust zone. According to such design, the mixture in the peripheral portion of the combustion chamber can smoothly flow from the intake-to-intake and exhaust-to-exhaust zones to the intake-to-exhaust zone along the peripheral face of the cylinder. The flow of air-fuel mixture from the intake-to-intake zone collides at the center of the intake-to-exhaust zone with the flow of mixture from the exhaust-to-exhaust zone, and the combined flow goes over a conical tapered portion in the upper face of the piston and vigorously enters a central recessed portion thereof. Therefore, it is possible to satisfactorily mix an air-fuel mixture with a simplified configuration.

公开(公告)号：US06799550B2

公开(公告)日：2004-10-05

申请号：US10318844

申请日：2002-12-13

Applicant: Martin Wirth

Inventor： Martin Wirth

IPC: F02B500

CPC classification number: F02F1/242 ,  F02B23/101 ,  F02B2075/125 ,  F02F1/38 ,  F02F2001/241 ,  F02F2001/245 ,  Y02T10/123 ,  Y02T10/125

Abstract: The invention relates to a spark-ignition engine having direct fuel injection, the fuel injector (2) and the spark plug (3) being arranged centrally on the upper side of the combustion chamber (1). The fuel injector produces an asymmetrical injection volume, so that the electrodes of the spark plug (3) are not directly affected by liquid fuel. The electrodes are, however, situated in a region reached by evaporating fuel.

Abstract translation: 本发明涉及一种具有直接燃料喷射的火花点火发动机，燃料喷射器（2）和火花塞（3）位于燃烧室（1）的上侧的中央。 燃料喷射器产生不对称的喷射体积，使得火花塞（3）的电极不直接受液体燃料的影响。 然而，电极位于通过蒸发燃料而达到的区域中。

公开(公告)号：US20030005908A1

公开(公告)日：2003-01-09

申请号：US10237706

申请日：2002-09-10

Inventor： Mamoru Fujieda ,  Toshiharu Nogi ,  Yoshishige Oyama ,  Minoru Ohsuga ,  Takuya Shiraishi

IPC: F02B017/00

CPC classification number: F02D13/023 ,  F01L1/267 ,  F01L9/04 ,  F01L13/0036 ,  F01L2201/00 ,  F01L2800/00 ,  F02B3/06 ,  F02B17/005 ,  F02B19/12 ,  F02B23/101 ,  F02B2023/102 ,  F02B2023/108 ,  F02B2075/125 ,  F02B2275/40 ,  F02D11/105 ,  F02D13/0261 ,  F02D29/02 ,  F02D33/00 ,  F02D35/023 ,  F02D37/02 ,  F02D41/0225 ,  F02D41/023 ,  F02D41/1446 ,  F02D41/1475 ,  F02D41/149 ,  F02D41/1497 ,  F02D41/187 ,  F02D41/3029 ,  F02D41/307 ,  F02D41/3082 ,  F02D41/34 ,  F02D41/3809 ,  F02D41/3845 ,  F02D41/402 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2041/389 ,  F02D2200/0602 ,  F02D2250/18 ,  F02F2001/241 ,  F02M26/55 ,  F02M26/57 ,  F02M45/02 ,  F02M69/045 ,  F02M2026/002 ,  F02M2026/003 ,  F16H61/0213 ,  F16H61/14 ,  F16H63/502 ,  F16H2061/0018 ,  Y02T10/12 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/44 ,  Y10T477/663 ,  Y10T477/677 ,  Y10T477/68

Abstract: Under a partial load, a pumping loss is reduced by a stratified combustion to enhance a fuel consumption, and during the maximum output operation, the output is increased by a premixture combustion, and the output of an engine is controlled, thereby enhancing the drivability. Under the partial load, an ignition source is provided in the vicinity of a fuel injection valve, and after the fuel is injected, the mixture is ignited, and a resulting flame is caused by a spray of the fuel to spread into a cylinder, thereby effecting a stratified combustion. When the load increases, so that soot and so on are produced in the stratified combustion, the fuel injection is effected a plurality of times in a divided manner, and a premixture is produced within the cylinder by the front-half injection, and a flame, produced by the latter-half injection, is injected into the cylinder to burn this premixture.

公开(公告)号：US06443122B1

公开(公告)日：2002-09-03

申请号：US09700340

申请日：2000-12-28

Applicant: Ingemar Denbratt ,  Jonny Nisbet ,  Henrik Oest Simonsen ,  Lars-Olof Carlsson

Inventor： Ingemar Denbratt ,  Jonny Nisbet ,  Henrik Oest Simonsen ,  Lars-Olof Carlsson

IPC: F02F326

CPC classification number: F02B23/104 ,  F02B2023/106 ,  F02B2023/108 ,  F02B2075/125 ,  F02B2275/48 ,  F02F1/4214 ,  F02F3/26 ,  F02F2001/241 ,  F02F2001/245 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/146

Abstract: Internal combustion engine with fuel injection directly into the combustion chamber of the engine. The engine has inlet channels, the angle of incidence (valve angle) (&agr;) of which is greater than 20° relative to the longitudinal axis of the cylinder chamber. The piston tops are made, firstly, with a surface portion inclined relative to a plane normal to the longitudinal axis of the cylinder chamber by an angle (&ggr;) equal to or less than the angle of incidence of the inlet channel, and, secondly, with a cavity connected to the inclined surface portion. By interaction between the angle of incidence of the inlet channels and the shape of the piston tops, there is generated in the combustion chambers a primary vortical movement in the inlet air about an axis perpendicular to the longitudinal axis of the cylinder chamber. The primary vortical movement generates a secondary vortical movement in the opposite direction in the piston cavity.

Abstract translation: 燃油喷射的内燃机直接进入发动机的燃烧室。 发动机具有入口通道，相对于气缸室的纵向轴线，其入射角（阀角）（角度）（α）大于20°。 首先制造活塞顶部，其表面部分相对于垂直于气缸室的纵向轴线的平面倾斜一个等于或小于入口通道的入射角的角度（γ），其次， 其中空腔连接到倾斜表面部分。 通过入口通道的入射角与活塞顶部的形状之间的相互作用，在燃烧室中产生了入口空气中围绕垂直于气缸室的纵向轴线的轴的初级旋涡运动。 初级涡旋运动在活塞腔中产生相反方向的次级涡旋运动。

公开(公告)号：US06343585B1

公开(公告)日：2002-02-05

申请号：US09709404

申请日：2000-11-13

Applicant: Mamoru Fujieda ,  Toshiharu Nogi ,  Yoshishige Oyama ,  Minoru Ohsuga ,  Takuya Shiraishi

Inventor： Mamoru Fujieda ,  Toshiharu Nogi ,  Yoshishige Oyama ,  Minoru Ohsuga ,  Takuya Shiraishi

IPC: F02B1700

CPC classification number: F02D13/023 ,  F01L1/267 ,  F01L9/04 ,  F01L13/0036 ,  F01L2201/00 ,  F01L2800/00 ,  F02B3/06 ,  F02B17/005 ,  F02B19/12 ,  F02B23/101 ,  F02B2023/102 ,  F02B2023/108 ,  F02B2075/125 ,  F02B2275/40 ,  F02D11/105 ,  F02D13/0261 ,  F02D29/02 ,  F02D33/00 ,  F02D35/023 ,  F02D37/02 ,  F02D41/0225 ,  F02D41/023 ,  F02D41/1446 ,  F02D41/1475 ,  F02D41/149 ,  F02D41/1497 ,  F02D41/187 ,  F02D41/3029 ,  F02D41/307 ,  F02D41/3082 ,  F02D41/34 ,  F02D41/3809 ,  F02D41/3845 ,  F02D41/402 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2041/389 ,  F02D2200/0602 ,  F02D2250/18 ,  F02F2001/241 ,  F02M26/55 ,  F02M26/57 ,  F02M45/02 ,  F02M69/045 ,  F02M2026/002 ,  F02M2026/003 ,  F16H61/0213 ,  F16H61/14 ,  F16H63/502 ,  F16H2061/0018 ,  Y02T10/12 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/44 ,  Y10T477/663 ,  Y10T477/677 ,  Y10T477/68

Abstract: The engine disclosed features an engine cylinder provided with an air intake valve, an injector having a fuel injection port which is directed towards an interior of the engine cylinder, and a control unit which is connected to the air intake valve and to the injector, the control unit effecting changes in the air intake amount by controlling the degree of opening of the air intake valve, and, also, controls the air/fuel ratio by changing the amount of fuel supplied by the injector. The engine also has an exhaust valve in the engine cylinder such that the control unit controls the intake valve and the exhaust valve so that an opening period of the intake valve is overlapped with an opening period of the exhaust valve at least when the opening period of the intake valve is maximum. The period of the overlap is longer when a relatively large amount of air is required than when a relatively small amount of air is required. According to such a scheme, the amount of the air can be changed by the lift of the intake valve. By changing the lift, the overlap with an exhaust valve is also changed. During the high-output or power operation, the period of overlap between the exhaust valve and the intake valve is made longer. When engine torque decreases to a level lower than the target engine torque, the air amount is adjusted by the cam or the throttle valve.

Abstract translation: 所公开的发动机具有设置有进气阀的发动机气缸，具有朝向发动机气缸内部的燃料喷射口的喷射器，以及连接到进气阀和喷射器的控制单元， 控制单元通过控制进气阀的开度来实现进气量的变化，并且还通过改变由喷射器供应的燃料量来控制空气/燃料比。 发动机还在发动机气缸中具有排气阀，使得控制单元控制进气门和排气门，使得进气门的打开时段至少与排气门的打开时段重叠，至少在打开期间 进气阀最大。 当需要相对大量的空气时，与需要相对少量的空气相比，重叠的时间段更长。 根据这种方案，可以通过进气门的升程来改变空气量。 通过改变电梯，与排气阀的重叠也改变。 在高输出或动力运行期间，排气阀和进气阀之间的重叠时间较长。 当发动机扭矩降低到低于目标发动机扭矩的水平时，空气量由凸轮或节流阀调节。