公开(公告)号：US12078095B1

公开(公告)日：2024-09-03

申请号：US18336768

申请日：2023-06-16

Applicant: ARAMCO SERVICES COMPANY

Inventor： Ashish Dinesh Shah

IPC: F02B19/14 ,  F02B19/04 ,  F02B19/12

CPC classification number: F02B19/04 ,  F02B19/12

Abstract: A reciprocating engine system includes a cylinder and a piston movable within the cylinder and having a piston head. A combustion chamber is defined within the cylinder, between the piston head, the inner cylinder wall, and a cylinder head. The engine system also includes an intermittent prechamber having a lower prechamber jaw provided on the piston head and an upper prechamber jaw provided through the cylinder head, wherein a prechamber volume is variable and directly related to a position of the piston head within the combustion chamber.

公开(公告)号：US08205593B2

公开(公告)日：2012-06-26

申请号：US12456490

申请日：2009-06-17

Applicant: William I. de Versterre

Inventor： William I. de Versterre

IPC: F02B19/10 ,  F02B53/04 ,  F02B75/02 ,  F02G3/02

CPC classification number: F02D15/04 ,  F02B19/04 ,  F02B41/06 ,  Y02T10/12 ,  Y02T10/125

Abstract: Method and apparatus to improve the efficiency of internal combustion engines in which compression and combustion of an Air/Fuel mixture is carried out without a compression stroke as used in conventional internal combustion engines and expansion of the combusted mixture is performed to increase the expansion ratio resulting in an increase in the amount of work extracted. An externally compressed Air/Fuel Mixture is combusted in a variable volume combustion chamber and expanded into a conventional cylinder displacing a power piston to produce rotation of a crankshaft to drive a vehicle or other device. Separation of the variable volume combustion chamber from the conventional cylinder eliminates the conventional Otto Cycle compression stroke and provides a substantially larger expansion ratio than the compression ratio in a conventional engine.

Abstract translation: 提高内燃机的效率的方法和装置，其中进行空气/燃料混合物的压缩和燃烧而不用常规内燃机中使用的压缩冲程和膨胀燃烧的混合物，以增加膨胀比 在提取的工作量的增加。 外部压缩的空气/燃料混合物在可变体积的燃烧室中燃烧并膨胀成传统的气缸，其移动动力活塞以产生曲轴的旋转以驱动车辆或其它装置。 可变体积燃烧室与常规气缸的分离消除了常规的奥托循环压缩冲程，并提供比常规发动机中的压缩比大得多的膨胀比。

公开(公告)号：US07438044B2

公开(公告)日：2008-10-21

申请号：US11459442

申请日：2006-07-24

Applicant: Gary Webster ,  Dennis Raymond

Inventor： Gary Webster ,  Dennis Raymond

IPC: F02F3/24 ,  F02F3/28

CPC classification number: F02B23/02 ,  F02B19/04 ,  F02B23/0675 ,  F02B2075/025 ,  F02F3/28 ,  F02M37/0076 ,  Y02T10/125

Abstract: Disclosed is a diesel engine comprising a cylinder head; a combustion chamber within the cylinder head, the combustion chamber being in the shape of a bowl; and a piston having a piston crown, the piston crown having a dome-shape for protruding within the cylinder head during a combustion operation near or at top dead center. The engine is preferably a two stroke crankcase compression engine. Use of a combustion chamber in the shape of a shallow bowl along with other parameter selection decreases the rates of combustion pressure rise while providing reasonable power output.

Abstract translation: 公开了一种柴油发动机，其包括气缸盖; 在气缸盖内的燃烧室，所述燃烧室为碗形; 以及具有活塞冠的活塞，所述活塞冠具有圆顶形状，用于在靠近或在上死点的燃烧操作期间在所述气缸盖内突出。 发动机优选为二冲程曲轴箱压缩发动机。 使用具有浅碗形状的燃烧室以及其他参数选择可降低燃烧压力的上升速率同时提供合理的功率输出。

公开(公告)号：US07421982B2

公开(公告)日：2008-09-09

申请号：US11570324

申请日：2006-12-08

Applicant: Ichiro Kamimura ,  Kazunari Kamimura ,  Masahiro Kamimura

Inventor： Ichiro Kamimura ,  Kazunari Kamimura ,  Masahiro Kamimura

IPC: F02B19/02 ,  F02B47/04 ,  F02B55/14 ,  F02M25/022

CPC classification number: F02B53/00 ,  F02B19/04 ,  F02B19/16 ,  F02B19/18 ,  F02B2053/005 ,  F02D15/04 ,  Y02T10/125 ,  Y02T10/17

Abstract: The present invention is directed to an internal combustion engine for making suction, compression, explosion, expansion and exhaust strokes in an operating chamber of variable volume defined between a housing and a piston. The internal combustion engine includes: an independent combustion chamber of fixed volume, formed in the housing and provided with a fuel supply device, for independently producing combustion therein; at least one communication passage for communicating the independent combustion chamber with the operating chamber of variable volume; and a control valve for allowing introduction of compressed air from the operating chamber into the independent combustion chamber and providing injection of combustion gas from the independent combustion chamber into the operating chamber at specified timing. The internal combustion engine is configured to independently produce main combustion without communication with the operating chamber. Thus, the internal combustion engine can achieve a high compression ratio without causing damage to engine components due to knocking.

Abstract translation: 本发明涉及一种用于在壳体和活塞之间限定的可变容积的操作室中进行吸入，压缩，爆炸，膨胀和排出冲程的内燃机。 内燃机包括：固定体积的独立燃烧室，形成在壳体中并设置有用于在其中独立地产生燃烧的燃料供应装置; 至少一个连通通道，用于将独立燃烧室与可变容积的操作室连通; 以及控制阀，用于允许将来自操作室的压缩空气引入到独立的燃烧室中，并且在特定的时刻将燃烧气体从独立的燃烧室喷射到操作室中。 内燃机被配置为独立地产生主燃烧而不与操作室连通。 因此，内燃机可以实现高压缩比，而不会由于敲击而对发动机部件造成损坏。

公开(公告)号：US5277159A

公开(公告)日：1994-01-11

申请号：US981316

申请日：1992-11-25

Applicant: Gary D. Webster

Inventor： Gary D. Webster

IPC: F02B1/04 ,  F02B3/06 ,  F02B19/00 ,  F02B19/04 ,  F02B19/16 ,  F02B75/02 ,  F02B75/12 ,  F02B19/14

CPC classification number: F02B19/165 ,  F02B19/04 ,  F02B1/04 ,  F02B2019/006 ,  F02B2075/025 ,  F02B2075/125 ,  F02B3/06 ,  Y02T10/123 ,  Y02T10/125

Abstract: A piston and cylinder arrangment for an internal combustion engine designed to run on diesel and similar fuels, comprises a cylinder defining a main combustion chamber, a piston reciprocatable within said cylinder and having a thermally insulating plate on its upper surface, a cylinder head including a precombustion chamber, a fuel injector for injecting fuel into said precombustion chamber, and a thermally insulated block of material with high heat retention ability surrounding the precombustion chamber to maintain a high temperature a high temperature of at least about 500.degree. C. in the precombustion chamber and thereby facilitate fuel ignition at moderate compression ratios. A mass of material with high heat retention ability is mounted on the insulated surface of the piston so as to remain at a high temperature during running of the engine and facilitate the combustion process during the downward stroke of the piston.

Abstract translation: 用于内燃机的活塞和气缸排列设计成在柴油和类似燃料上运行，包括限定主燃烧室的气缸，可在所述气缸内往复运动并在其上表面上具有绝热板的活塞，气缸盖包括 预燃室，用于将燃料喷射到所述预燃室中的燃料喷射器以及围绕预燃室的具有高保温能力的隔热材料块，以在预燃室内保持高温至少约500℃的高温 从而在中等压缩比下促进燃料点火。 具有高保温能力的大量材料安装在活塞的绝缘表面上，以便在发动机行驶期间保持高温，并有助于在活塞向下冲程期间的燃烧过程。

公开(公告)号：US5115768A

公开(公告)日：1992-05-26

申请号：US652325

申请日：1991-02-07

Applicant: Walter Peschka ,  Gottfried Schneider

Inventor： Walter Peschka ,  Gottfried Schneider

IPC: F02B19/04 ,  F02B19/06 ,  F02B23/10 ,  F02B43/10 ,  F02B75/02 ,  F02B75/28 ,  F02M21/02

CPC classification number: F02B43/10 ,  F02B19/04 ,  F02B19/06 ,  F02B2075/027 ,  Y02T10/125 ,  Y02T10/32 ,  Y10S123/12

Abstract: In order to improve a combustion engine for hydrogen comprising a main piston which is displaceable in a main cylinder in a stroke direction between a top dead center, forming a minimum main cylinder chamber with the main cylinder, and a bottom dead center and hereby performs a suction stroke, a compression stroke, a displacement stroke and an exhaust stroke, such that the problems of early ignition are avoided without any internal mixture formation with late injection being required, it is recommended that an auxiliary piston and an auxiliary cylinder be provided for movement relative to one another so as to be in equal phase and synchronous with the main piston and the main cylinder, that the auxiliary piston and the auxiliary cylinder define with one another a cylinder chamber varying between a minimum cylinder chamber in the top dead center and a maximum cylinder chamber in the bottom dead center, that the minimum cylinder chamber communicate with the minimum main cylinder chamber via a passage and that the hydrogen be injected into the cylinder chamber during the course of the suction stroke.

Abstract translation: 为了改善用于氢的燃烧发动机，包括主活塞，主活塞在上止点之间的行程方向上可移动，形成与主缸的最小主缸室和下止点，因此执行 吸入冲程，压缩冲程，排量行程和排气冲程，从而避免了早期点火的问题，而不需要延迟喷射的任何内部混合物形成，因此建议提供辅助活塞和辅助气缸用于运动 相对于彼此相等并且与主活塞和主缸同步，辅助活塞和辅助气缸彼此限定在上止点中的最小气缸室之间变化的气缸室和 最大气缸室位于下止点，最小气缸室与最小主缸室连通 通过通道，并且在吸入行程期间将氢气注入气缸室。

公开(公告)号：US5022353A

公开(公告)日：1991-06-11

申请号：US514884

申请日：1990-04-26

Applicant: Hideo Kamamura

Inventor： Hideo Kamamura

IPC: F01L9/04 ,  F01L13/00 ,  F02B19/04 ,  F02B25/04 ,  F02B25/14 ,  F02B33/44 ,  F02B37/00 ,  F02B69/06 ,  F02B75/02 ,  F02D13/02 ,  F02M59/38

CPC classification number: F02D13/0203 ,  F01L13/0005 ,  F01L9/04 ,  F02B19/04 ,  F02B25/04 ,  F02B25/145 ,  F02B33/44 ,  F02B37/00 ,  F02B37/005 ,  F02B69/06 ,  F02D13/0249 ,  F02D13/0253 ,  F02D13/028 ,  F02D13/0284 ,  F02M59/38 ,  F02B2075/025 ,  F02B2075/027 ,  Y02T10/125 ,  Y02T10/144 ,  Y02T10/18 ,  Y10S123/07

Abstract: A variable-cycle engine operates in a two-cycle mode when the rotational speed of the engine is lower than a predetermined speed and in a four-cycle mode when the rotational speed of the engine is higher than the predetermined speed. The engine has a first intake port and an exhaust port which are defined in an upper portion of a cylinder, and a second intake port defined in a lower side portion of the cylinder. When the rotational speed of the engine is lower than the predetermined speed, the engine operates as a two-cycle engine with the second intake valve and the exhaust valve in operation. When the rotational speed of the engine is higher than the predetermined speed, the engine operates as a four-cycle engine with the first intake port and the exhaust port in operation. Alternatively, the engine has an intake port defined in a lower side portion of a cylinder and an exhaust port defined in an upper portion of the cylinder, the exhaust port being openable and closable by an exhaust valve with variable timing. Depending on the rotational speed of the engine, the timing with which the exhaust valve operates is varied, and the engine operates in one of different cycles. The engine is associated with a turbocharger combined with an electric motor. In a lower speed range, the electric motor is energized to assist in turbocharging operation for thereby increasing the torque produced by the engine.

公开(公告)号：US4164915A

公开(公告)日：1979-08-21

申请号：US811784

申请日：1977-06-30

Applicant: Joseph T. Kulhavy ,  Donald G. Shelton

Inventor： Joseph T. Kulhavy ,  Donald G. Shelton

IPC: F02B1/04 ,  F02B3/06 ,  F02B19/04 ,  F02B23/06 ,  F02B69/00 ,  F02B75/12 ,  F02B3/00

CPC classification number: F02B23/0675 ,  F02B19/04 ,  F02B23/063 ,  F02B23/066 ,  F02B23/0672 ,  F02B69/00 ,  F02B1/04 ,  F02B2075/125 ,  F02B23/0627 ,  F02B3/06 ,  Y02T10/123 ,  Y02T10/125

Abstract: A method and apparatus for converting a gasoline engine to a diesel engine as disclosed herein. The method involves formation of a specifically designed piston that defines a reduced combustion chamber with a reduced chamber in the cylinder head of a conventional gasoline engine and replacing the spark plug with a fuel injector. The piston includes a circular cylinder having a substantially flat end with an integral dome extending from the flat end and having an area that is more than half the area of the cylinder. The dome has a combustion chamber defined therein and the combustion chamber is in communication with the periphery of the dome adjacent the flat end of the cylinder so that movement of the piston towards the cylinder head having a reduced chamber therein will first cause the dome to enter the reduced chamber and then have the gases from the cylinder bore forced into the reduced combustion chamber to create turbulence therein.

Abstract translation: 如本文所公开的用于将汽油发动机转化为柴油发动机的方法和装置。 该方法包括形成专门设计的活塞，该活塞在常规汽油发动机的气缸盖中限定具有减小的室的减小的燃烧室，并用燃料喷射器代替火花塞。 活塞包括具有基本上平坦的端部的圆柱体，其具有从平坦端部延伸的整体的圆顶，并且具有大于圆筒面积的一半的面积。 穹顶具有限定在其中的燃烧室，并且燃烧室与邻近圆筒的平坦端部的圆顶的周边连通，使得活塞朝向具有减小的室的气缸盖的运动将首先使圆顶进入 减压室，然后使来自气缸孔的气体被迫进入减少的燃烧室，以在其中产生湍流。

公开(公告)号：US4011841A

公开(公告)日：1977-03-15

申请号：US555060

申请日：1975-03-03

Applicant: Tadanori Sato ,  Toshiaki Matsushita ,  Isao Matsuno

Inventor： Tadanori Sato ,  Toshiaki Matsushita ,  Isao Matsuno

IPC: F02B75/00 ,  F02B1/04 ,  F02B19/04 ,  F02B19/12 ,  F02B23/08 ,  F02B75/02 ,  F02F1/24 ,  F02P15/08 ,  F02B3/00

CPC classification number: F02F1/242 ,  F02B19/04 ,  F02B19/12 ,  F02B23/08 ,  F02B1/04 ,  F02B2023/085 ,  F02B2075/027 ,  Y02T10/125

Abstract: An internal combustion engine in which a cylinder head is formed with a pocket and a main piston is formed with an auxiliary piston slidable in the pocket. A combustion chamber is defined between the cylinder head and the main piston. The combustion chamber includes first and second combustion spaces defined between the pocket and the auxiliary piston and between the cylinder head and the main piston when the piston is substantially at a position near a top dead center of a piston stroke. Homogeneous air-fuel mixtures are compressed in the first and second combustion spaces and are ignited by first and second spark plugs disposed in the first and second combustion spaces, respectively, at different times, such that the combustions will be effected at different flame propagation speeds.

Abstract translation: 一种内燃机，其中气缸盖形成有袋和主活塞，形成有可在口袋中滑动的辅助活塞。 在气缸盖和主活塞之间限定燃烧室。 燃烧室包括当活塞基本处于靠近活塞冲程的上止点附近的位置时，该空间限定在袋和辅助活塞之间以及气缸盖和主活塞之间。 均匀的空气 - 燃料混合物在第一和第二燃烧空间中被压缩，并且在不同时间分别被设置在第一和第二燃烧空间中的第一和第二火花塞点燃，使得燃烧将以不同的火焰传播速度 。

公开(公告)号：US3870025A

公开(公告)日：1975-03-11

申请号：US26923172

申请日：1972-07-05

Applicant: MCCULLOCH CORP

Inventor： ANDERSON HAROLD ELDEN ,  KRUCKENBERG PERRY LESTER

IPC: F02B23/02 ,  F02B3/06 ,  F02B19/04 ,  F02B23/04 ,  F02D7/00 ,  F02M41/14 ,  F02M45/00 ,  F02M59/34 ,  F02M63/00 ,  F02D1/04 ,  F02D1/06 ,  F02M39/00

CPC classification number: F02M41/1405 ,  F02B3/06 ,  F02B19/04 ,  Y02T10/125

Abstract: A method and apparatus for improving the fuel injection characteristics of internal combustion engine means, particularly in relation to diesel engines operating on the spaced burning loci principle as featured in United States Kruckenberg et al. U.S. Pat. No. 3,543,735. associated This improvement is practiced in systems where the time increment of injection of an injection nozzle is longer than the time increment of the pumping stroke of a fuel pump. In such systems, at relatively lower engine speed and/or load conditions, the volume of a fuel increment displaced by a fuel pump during each working engine stroke is increased and a portion of fuel is diverted between the fuel pump piston means and injection nozzle means of the engine. In a system such as this, at relatively higher engine speed and/or load conditions, a relatively lower volume of fuel is displaced during each pumping increment of the fuel pump and at least the full diversion of fuel does not take place. In another aspect of the invention, and at lower engine speed and/or load conditions, the injection nozzle is caused to generate a generally billowing or diverging spray pattern, while at higher or normal engine speed and/or load conditions the injection nozzle is caused to generate relatively solid streams of fuel. Preferably, these ''''solid'''' streams are directed into individualized or discrete agitation zones and burning loci associiated therewith.

Abstract translation: 一种用于改善内燃机装置的燃料喷射特性的方法和装置，特别是关于按照美国Kruckenberg等人所述的以间隔燃烧轨道原理工作的柴油发动机。 美国专利 第3,543,735号。 相关联的这种改进在喷射喷嘴的喷射时间增量长于燃料泵的泵送冲程的时间增量的系统中实现。 在这种系统中，在相对较低的发动机转速和/或负载条件下，在每个工作的发动机行程期​​间由燃料泵移位的燃料增量的体积增加，并且一部分燃料在燃料泵活塞装置和喷嘴装置 的发动机。 在这样的系统中，在相对较高的发动机转速和/或负载条件下，在燃料泵的每个泵送增量期间相对较低的燃料量被移动，并且至少不会发生燃料的完全转移。