公开(公告)号：US20240240584A1

公开(公告)日：2024-07-18

申请号：US18097859

申请日：2023-01-17

申请人： Vianney RABHI

发明人： Vianney RABHI

IPC分类号： F02B19/02 ,  F02B19/12

CPC分类号： F02B19/02 ,  F02B19/12

摘要： The friction insert for oriented valve is intended for a valve-controlled ignition prechamber and includes an external valve body guide cylindrical bearing surface which is arranged at the periphery of a valve having a guide pin and which slides with a small clearance into a first valve body guide, the insert also including an external pin guide cylindrical bearing surface which is arranged at the external periphery of an orientation pin and which slides with a small clearance into a second orientation pin guide, the valve body guide and orientation pin guide being resistant to abrasive wear and being fixedly mounted in a non-magnetic prechamber tip in which they guide and orient the valve having a guide pin.

公开(公告)号：US20240200488A1

公开(公告)日：2024-06-20

申请号：US18390561

申请日：2023-12-20

申请人： Liebherr Machines Bulle SA

发明人： Bouzid SEBA ,  Ulrich WEISS ,  Bakir PURAN ,  Roberto ANDREUTTI

IPC分类号： F02B19/02 ,  F02B19/12 ,  F02M25/028 ,  F02M31/20 ,  F02M61/14

CPC分类号： F02B19/02 ,  F02B19/12 ,  F02M25/028 ,  F02M31/20 ,  F02M61/14

摘要： The invention relates to an engine having prechamber ignition, in particular a gas engine, that comprises a main combustion space in a cylinder of the engine for combusting an air-fuel mixture and a prechamber having an ignition device arranged therein and a fuel injector arranged therein, wherein the prechamber has at least one transfer port that fluidically connects the prechamber to the main combustion space. The engine is characterized in that the fuel injector arranged in the prechamber is the only fuel injector via which fuel can be introduced into the associated main combustion space.

公开(公告)号：US10054102B2

公开(公告)日：2018-08-21

申请号：US15827858

申请日：2017-11-30

申请人： Woodward, Inc.

发明人： Domenico Chiera ,  Gregory James Hampson

IPC分类号： F02P19/02 ,  F02B9/10 ,  F02B19/02 ,  F02B19/10 ,  F02P19/00

CPC分类号： F02P19/02 ,  F02B9/10 ,  F02B19/02 ,  F02B19/1095 ,  F02P19/00 ,  Y02T10/125

摘要： An engine has an ignition source in a combustion chamber of the engine. An inner housing is provided that includes one or more jet apertures and defines an inner chamber containing the ignition source. An outer housing (or pre-chamber) is provided that includes one or more jet apertures in communication with the main combustion chamber and defines an outer chamber containing the inner housing.

公开(公告)号：US09638092B2

公开(公告)日：2017-05-02

申请号：US14311227

申请日：2014-06-20

申请人： Joseph S. Adams

发明人： Joseph S. Adams

IPC分类号： F02B19/02 ,  F02B63/02 ,  F01B11/04

CPC分类号： F02B19/02 ,  F01B11/04 ,  F02B63/02 ,  Y02T10/125

摘要： A combustion-powered tool comprises a primary combustion chamber, a secondary combustion chamber, and a working piston that is in fluidic connection with the secondary combustion chamber so as to be exposed to the pressures developed within the secondary combustion chamber, when combustion takes place within the secondary combustion chamber, such that the working piston can be driven through its working or power stroke. A flexible silicone rubber plate-type control check valve is interposed between the primary combustion chamber and the secondary combustion chamber so as to control the flow of combustion products from the primary combustion chamber into the secondary combustion chamber and yet prevent the flow of combustion products from the secondary combustion chamber back into the primary combustion chamber, when combustion occurs within the secondary combustion chamber, such that the pressures developed within the secondary combustion chamber, as a result of the combustion of the air/fuel mixture within the secondary combustion chamber, can in fact act upon the working piston so as to drive the same through its working or power stroke.

公开(公告)号：US20160069250A1

公开(公告)日：2016-03-10

申请号：US14940177

申请日：2015-11-13

申请人： Caterpillar Inc.

发明人： Andrew J. Loetz

IPC分类号： F02B19/02

CPC分类号： F02B19/02 ,  F02B19/06 ,  F02B19/108 ,  F02B19/12 ,  F02B43/00 ,  F02M21/02 ,  Y02T10/125 ,  Y02T10/32

摘要： An engine with a cylinder, a cylinder head, a main combustion chamber, a pre-combustion chamber assembly, and a control valve is provided. The main combustion chamber is disposed in the cylinder. The pre-combustion chamber assembly is disposed in the cylinder head. The pre-combustion chamber assembly includes a pre-chamber portion in fluid communication with the main combustion chamber. The pre-combustion chamber assembly includes a tip portion, which includes at least one orifice to allow fluid communication between the main combustion chamber and the pre-chamber portion. The control valve is accommodated in the pre-chamber portion and is mechanically switchable between a closed position and an open position. The control valve is adapted to be switched to the closed position when fluid pressure in the pre-chamber portion reaches a peak pressure value. The control valve then blocks fluid communication between the main combustion chamber and the pre-chamber portion.

摘要翻译： 提供具有气缸，气缸盖，主燃烧室，预燃室组件和控制阀的发动机。 主燃烧室设置在气缸中。 预燃室组件设置在气缸盖中。 预燃烧室组件包括与主燃烧室流体连通的预燃室部分。 预燃烧室组件包括尖端部分，其包括至少一个孔，以允许主燃烧室和预燃室部分之间的流体连通。 控制阀被容纳在预置室部分中并且可在闭合位置和打开位置之间机械地切换。 当预制室内的流体压力达到峰值压力值时，控制阀适于切换到关闭位置。 然后，控制阀阻止主燃烧室和预燃室部分之间的流体连通。

公开(公告)号：US09003765B1

公开(公告)日：2015-04-14

申请号：US13182489

申请日：2011-07-14

申请人： Barry A. Muth

发明人： Barry A. Muth

IPC分类号： F02G3/02 ,  F02B19/10

CPC分类号： F02B19/1019 ,  F02B19/02 ,  F02B19/16 ,  Y02T10/125

摘要： A poppet valve engine incorporates a single rotary combustion chamber serving multiple cylinders to decrease emissions and increase thermodynamic efficiency. Virtually zero emissions are achievable by on-board fuel reforming to hydrogen. Limited heat range exposure of the rotary combustion chamber, low temperature combustion, and ceramic coatings reduce heat loss while three stage combustion, intake and fuel preheating, and fuel reforming reduce combustion process irreversibility. A supercharger increases the power density to allow engine displacement reduction. A z-crankshaft assembly coupled with a pre-combustion chamber allow knock-less and stable hydrogen combustion at virtually all load and speed conditions. Variable compression, possible in certain configurations of the z-crankshaft assembly, further increases thermal efficiency.

摘要翻译： 提升阀发动机包括一个用于多个气缸的旋转燃烧室，以减少排放并提高热力学效率。 通过车载燃料重整为氢气可实现零排放。 旋转燃烧室，低温燃烧和陶瓷涂层的有限的热范围暴露减少了热损失，而三级燃烧，进气和燃料预热以及燃料重整降低了燃烧过程的不可逆性。 增压器增加功率密度，以减少发动机排量。 与预燃室连接的z型曲轴组件实际上在所有负载和速度条件下都能实现无爆震和稳定的氢气燃烧。 可变压缩，可能在z曲轴组件的某些配置中，进一步提高了热效率。

公开(公告)号：US20140109850A1

公开(公告)日：2014-04-24

申请号：US14096057

申请日：2013-12-04

申请人： Itzhak GONIGMAN ,  Moshe SINAI

发明人： Itzhak GONIGMAN ,  Moshe SINAI

IPC分类号： F01L1/28

CPC分类号： F01L1/28 ,  F01L9/04 ,  F01L2001/0535 ,  F01L2003/258 ,  F01L2009/0403 ,  F01L2201/00 ,  F01L2250/04 ,  F02B19/02 ,  F02D13/0207 ,  F02D13/0253 ,  F02D15/04 ,  Y02T10/12 ,  Y02T10/125 ,  Y02T10/18

摘要： It is disclosed a method for operating an improved internal combustion engine. An intake valve and an exhaust valve control closing and opening of respective intake and exhaust apertures. The engine includes a separating aperture between the cylinder and a separation chamber, and a controlling separating valve. The separation chamber is connected to the intake and exhaust manifolds respectively by the intake and exhaust apertures. The method includes opening the separating valve. While it is open, the exhaust valve opens and then closes, and then the intake valve opens enabling gas flow from the intake manifold to the cylinder volume through the open intake aperture, the separation chamber and the open separating aperture. The method includes closing the intake valve and closing the separating valve. Thereby, gas flow from the intake manifold stops, isolating the separation chamber from the cylinder volume and providing double isolation during compression and combustion strokes.

摘要翻译： 公开了一种操作改进的内燃机的方法。 进气门和排气门控制相应进气和排气孔的关闭和打开。 发动机包括在气缸和分离室之间的分离孔，以及控制分离阀。 分离室分别通过进气和排气孔连接到进气歧管和排气歧管。 该方法包括打开分离阀。 当打开时，排气阀打开然后关闭，然后进气门打开，使得气体能够通过打开的进气孔，分离室和开放的分离孔从进气歧管到气缸体积。 该方法包括关闭进气门并关闭分离阀。 因此，来自进气歧管的气体流动停止，将分离室与气缸体积隔离，并在压缩和燃烧冲程期间提供双重隔离。

公开(公告)号：US20110308505A1

公开(公告)日：2011-12-22

申请号：US13160533

申请日：2011-06-15

申请人： Riccardo Meldolesi

发明人： Riccardo Meldolesi

IPC分类号： F02B33/22

CPC分类号： F02B33/22 ,  F02B19/02 ,  F02B19/18 ,  F02B21/00 ,  F02B29/00 ,  F02B41/06 ,  Y02T10/125 ,  Y02T10/146

摘要： Methods, systems, and devices are disclosed that generally involve split-cycle engines in which a combustion event is initiated in a crossover passage that interconnects a compression cylinder and an expansion cylinder of the split-cycle engine. In one embodiment, the compression piston leads the expansion piston by a phase shift angle so that, for example, a substantial amount of the combustion event can occur in the crossover passage at a constant volume.

摘要翻译： 公开了通常涉及分流循环发动机的方法，系统和装置，其中燃烧事件在与压缩气缸和分相循环发动机的膨胀气缸相互连接的交叉通道中启动。 在一个实施例中，压缩活塞将膨胀活塞引导相移角，使得例如可以在恒定体积的交叉通道中发生大量的燃烧事件。

公开(公告)号：US20110277711A1

公开(公告)日：2011-11-17

申请号：US12779094

申请日：2010-05-13

申请人： Itzhak GONIGMAN ,  Moshe Sinai

发明人： Itzhak GONIGMAN ,  Moshe Sinai

IPC分类号： F01L9/04 ,  F02B23/08 ,  F01L1/34

CPC分类号： F01L1/28 ,  F01L9/04 ,  F01L2001/0535 ,  F01L2003/258 ,  F01L2009/0403 ,  F01L2201/00 ,  F01L2250/04 ,  F02B19/02 ,  F02D13/0207 ,  F02D13/0253 ,  F02D15/04 ,  Y02T10/12 ,  Y02T10/125 ,  Y02T10/18

摘要： It is provided an improved internal combustion engine unit. The engine unit has a piston moving in a cylinder enclosing cylinder volume, an intake valve controlling closing and opening of an intake aperture connecting the cylinder volume to an intake manifold, and an exhaust valve controlling closing and opening of an exhaust aperture connecting the cylinder volume to an exhaust manifold. The improved engine unit includes a separating aperture between the cylinder and a separation chamber, and a separating valve adapted for controlling closing and opening the separating aperture. The separation chamber is connectable to the intake manifold and to the exhaust manifold, respectively, by the intake and exhaust apertures. Opening both the separating valve and the exhaust valve enables gas flow from the cylinder volume to the exhaust manifold through the open separating aperture, the separation chamber and the open exhaust aperture. Opening both the separating valve and the intake valve enables gas flow from the intake manifold to the cylinder volume through the open intake aperture, the separation chamber and the separating aperture. The intake valve and the exhaust valve are driven by solenoids controlled in turn by an engine computer. The separating valve is driven by a camshaft driven in turn by the engine.

摘要翻译： 提供改进的内燃机单元。 发动机单元具有活塞，缸体封闭缸容积，进气阀控制关闭和打开连接汽缸体积的进气歧管和进气歧管;以及排气阀，其控制关闭和打开连接缸体的排气孔 到排气歧管。 改进的发动机单元包括在气缸和分离室之间的分离孔，以及适于控制关闭和打开分离孔的分离阀。 分离室可以通过进气和排气孔分别连接到进气歧管和排气歧管。 打开分离阀和排气阀使气体能够通过开放的分离孔，分离室和开放的排气孔从气缸体积流到排气歧管。 打开分离阀和进气阀使气体能够通过打开的进气孔，分离室和分离孔从进气歧管到气缸的体积。 进气阀和排气阀由电机依次由发动机计算机控制。 分离阀由通过发动机依次驱动的凸轮轴驱动。

公开(公告)号：US20100116242A1

公开(公告)日：2010-05-13

申请号：US12595137

申请日：2008-04-07

申请人： Philippe Guibert

发明人： Philippe Guibert

IPC分类号： F02B19/14 ,  F02B19/02

CPC分类号： F02B19/02 ,  F01L1/46 ,  F01L9/04 ,  F02B9/00 ,  F02B9/02 ,  F02D41/006 ,  Y02T10/125 ,  Y02T10/47

摘要： The invention relates to a method of initiating combustion in an internal combustion engine that comprises a main chamber (5) of variable volume into which an ignitable mixture is introduced, an auxiliary chamber (10) opening out into the main chamber and a controlled means (11, 14, 15) for putting the auxiliary chamber into communication with the main chamber, or for isolating it therefrom. The method includes the step of controlling the controlled means to put the auxiliary chamber into communication with the main chamber during a period that includes the top dead center between the compression stage and the expansion stage. The invention also provides an engine specially adapted to implement the method of the invention.

摘要翻译： 本发明涉及一种在内燃机中启动燃烧的方法，该方法包括：可变体积的主室（5），其中引入可点燃的混合物;通向主室的辅助室（10）和受控装置 用于使辅助室与主室连通，或用于将其与其隔离。 该方法包括在包括压缩级和膨胀级之间的上止点的时段期间，控制控制装置将辅助室与主室连通的步骤。 本发明还提供了一种特别适用于实现本发明方法的发动机。