公开(公告)号：WO1993010341A1

公开(公告)日：1993-05-27

申请号：PCT/NL1992000208

申请日：1992-11-19

Applicant: INNAS B.V. ,  ACHTEN, Peter, Augustinus, Johannes ,  POTMA, Theodorus, Gerhardus

Inventor： INNAS B.V.

IPC: F02B71/02

CPC classification number: F02B75/04 ,  E02D7/125 ,  F02B3/06 ,  F02B71/02 ,  F02B71/045 ,  F02B2075/025

Abstract: The invention relates to a method for the cold start of a free-piston diesel engine, comprising a cylinder (1) having a combustion room (2) therein and an air inlet (6), fuel supply (8) and combustion gas outlet (7) connected thereto, and a piston (4) movable within the cylinder (1) and limiting one side of the combustion room (2). Energy is supplied to the piston (4) to compress air supplied through the inlet by reducing the combustion room, whereafter fuel is injected to allow the fuel-air mixture to ignite by spontaneous combustion. So much compression energy is delivered to the piston (4) that the combustion room (2) is reduced to a volume of less than 3% of the combustion room (2) volume when the outlet (7) is closed. The corresponding free-piston engine has a dead volume of less than 3%.

Abstract translation: 本发明涉及一种用于冷启动自由活塞式柴油发动机的方法，该方法包括：在其中具有燃烧室（2）的气缸（1）和空气入口（6），燃料供应装置（8）和燃烧气体出口 7），以及可在气缸（1）内移动并限制燃烧室（2）的一侧的活塞（4）。 通过减少燃烧室将能量供给到活塞（4）以压缩通过入口供应的空气，之后喷射燃料以允许燃料 - 空气混合物通过自燃燃烧。 当出口（7）关闭时，如此多的压缩能量传递到活塞（4），燃烧室（2）被减小到小于燃烧室（2）体积的3％的体积。 相应的自由活塞发动机的死体积小于3％。

公开(公告)号：WO00052314A1

公开(公告)日：2000-09-08

申请号：PCT/US2000/000778

申请日：2000-01-12

IPC: F02B71/02 ,  F02B71/04 ,  F02B71/00

CPC classification number: F02B71/02 ,  F02B71/045

Abstract: A method of operating a free piston engine (10, 90, 100) of the present invention, includes a housing (12) with a combustion cylinder (18) and a second cylinder (20). A piston (14) includes a piston head (32) reciprocally disposed within the combustion cylinder (18), a second head (46) reciprocally disposed within the second cylinder (20), and a plunger rod (34) interconnecting the piston head (32) with the second head (46). A supply of hydraulic fluid is pulsed from a high pressure hydraulic accumulator (H) into a pressure chamber (50) in the second cylinder (20) adjacent teh second head (46) during a beginning portion of a compression stroke to cause the piston head (32) to move toward up a top dead center position. The high pressure hydraulic accumulator (H) is decoupled from the pressure chamber (50) after the pulsing step. A low pressure hydraulic accumulator (L) is coupled with the pressure chamber (50) during a remaining portion of the compression stroke. The high pressure hydraulic accumulator (H) is coupled with the pressure chamber (50) when the piston head (32) is traveling toward a BDC position during a return stroke.

Abstract translation: 一种操作本发明的自由活塞发动机（10,90,100）的方法包括具有燃烧气缸（18）和第二气缸（20）的壳体（12）。 活塞（14）包括往复地设置在燃烧气缸（18）内的活塞头（32），往复地设置在第二气缸（20）内的第二头部（46），以及将活塞头 32）与第二头（46）。 在压缩行程的开始部分期间，将液压流体的供应脉冲从高压液压蓄能器（H）脉冲到邻近第二头部（46）的第二气缸（20）中的压力室（50）中，以使活塞头 （32）朝向上死点位置移动。 在脉冲步骤之后，高压液压蓄能器（H）与压力室（50）分离。 低压液压蓄能器（L）在压缩冲程的剩余部分期间与压力室（50）联接。 当活塞头（32）在返回冲程期间向BDC位置行进时，高压液压蓄能器（H）与压力室（50）联接。

公开(公告)号：WO1990015231A1

公开(公告)日：1990-12-13

申请号：PCT/EP1990000867

申请日：1990-05-31

Applicant: STELZER, Frank

IPC: F02B71/02

CPC classification number: F02B71/02 ,  F02B75/04 ,  F02N11/00

Abstract: In a starter motor for an axial-piston engine with a stepped piston (14), two variable-length belt elements (98, 100) pass around an exentric element (92, 94, 96). The belt elements are connected directly or indirectly to interspaced points (114, 116) on the stepped piston.

公开(公告)号：WO2020261251A2

公开(公告)日：2020-12-30

申请号：PCT/IB2020/058067

申请日：2020-08-28

Applicant: AQUARIUS ENGINES (A.M.) LTD.

Inventor： YAAKOBY, Shaul

IPC: F02B71/00 ,  F02B63/04 ,  F02B71/02 ,  F02D29/06 ,  F02B75/00 ,  F02D41/00 ,  F02D41/40 ,  F02N11/00 ,  F02N11/04 ,  F02P5/15

Abstract: A system determines a position, speed or moving direction of a piston (50) at a reference point in a cylinder (12) of an engine (10). The system may be controlled based thereon. The engine (10) is a linear reciprocating engine, for example, an opposed piston engine. The system includes a first sensor (130) provided on a base (30) connected to the engine (10). The first sensor (130) generates a signal in response to a component coupled to the piston (50) being in a region of the first sensor (130). A second sensor (140) generates a signal in response to a component coupled to the piston (50) interacting with the second sensor (140). The system includes an energy transformer (20) configured to transform motion of the engine to electrical power.

公开(公告)号：WO2020260957A2

公开(公告)日：2020-12-30

申请号：PCT/IB2020/000742

申请日：2020-06-29

Applicant: AQUARIUS ENGINES (A.M.) LTD.

Inventor： YAAKOBY, Shaul

IPC: F02D41/00 ,  F02N11/04 ,  F02D29/06 ,  F02B75/00 ,  F02B71/02 ,  F02B71/00 ,  F02B63/04 ,  F02D41/40 ,  F02N11/00 ,  F02P5/15

Abstract: A system determines a position, speed or moving direction of a piston (50) at a reference point in a cylinder (12) of an engine (10). The system may be controlled based thereon. The engine (10) is a linear reciprocating engine, for example, an opposed piston engine. The system includes a first sensor (130) provided on a base (30) connected to the engine (10). The first sensor (130) generates a signal in response to a component coupled to the piston (50) being in a region of the first sensor (130). A second sensor (140) generates a signal in response to a component coupled to the piston (50) interacting with the second sensor (140). The system includes an energy transformer (20) configured to transform motion of the engine to electrical power.

公开(公告)号：WO2007035102A1

公开(公告)日：2007-03-29

申请号：PCT/NL2006/050238

申请日：2006-09-26

Applicant: BRINK BEDRIJFSWAGENINRICHTING B.V. ,  VAN DEN BRINK, Anthonie

Inventor： VAN DEN BRINK, Anthonie

IPC: F02B71/04 ,  F02B63/04 ,  F02B71/02

CPC classification number: H02K7/1884 ,  B60K6/24 ,  B60K6/26 ,  B60K6/48 ,  F02B63/04 ,  F02B63/041 ,  F02B71/02 ,  F02B71/04 ,  H02K35/02 ,  Y02T10/6221 ,  Y02T10/6295

Abstract: The invention relates to a power generator (1) comprising a combustion chamber (2) having a reciprocatable piston (4a) movable along a longitudinal axis (7), a shaft (5) attached to the piston extending into a second chamber (10) in a housing comprising (9) a stationary magnetic field generating element (14). A second magnetic field generating element (13) being attached to the shaft movable relative to the first magnetic field generating element, one of the magnetic field elements comprising a coil, the coil comprising a power output terminal (19) for providing power, an electrical motor (45) and a power storage device (51 ) connectable to the power output electrode (19) via a control unit (41), wherein a third chamber (25) is provided in the housing (9) the third chamber having an entry opening and an exit opening situated around the longitudinal axis (7) through which the shaft (5) passes, a piston member (29) being mounted on the shaft in the third chamber, a piston member wall sealingly engaging with the third chamber wall, and a gas being comprised in the third chamber (25).

Abstract translation: 本发明涉及一种发电机（1），其包括具有可沿着纵向轴线（7）移动的可往复运动的活塞（4a）的燃烧室（2），连接到延伸到第二室（10）中的活塞的轴（5） 在包括（9）固定磁场产生元件（14）的壳体中。 第二磁场产生元件（13），其附接到可相对于第一磁场产生元件移动的轴，所述磁场元件中的一个包括线圈，所述线圈包括用于提供电力的功率输出端子（19），电气 电动机（45）和经由控制单元（41）可连接到电力输出电极（19）的蓄电装置（51），其中在壳体（9）中设置有第三室（25），其具有入口 开口和出口，围绕所述轴（5）穿过的纵向轴线（7），活塞构件（29）安装在所述第三室中的轴上，活塞构件壁与所述第三室壁密封地接合， 并且气体包括在第三室（25）中。

公开(公告)号：WO00015954A1

公开(公告)日：2000-03-23

申请号：PCT/US1999/019882

申请日：1999-08-30

IPC: F02B71/00 ,  F02B71/02 ,  F02B71/04 ,  F02B75/02 ,  F02D41/02 ,  F02D41/40

CPC classification number: F02B71/02 ,  F02B71/045 ,  F02B2075/025

Abstract: Method for operating a free-piston engine (10) to produce relatively low amounts of undesirable NOx by initiating injection of the atomized fuel mixture into the combustion chamber after closure of exhaust apertures (28) by the combustion chamber piston during the compression stroke thereof to attain a homogeneous fuel-air mixture and relatively lower and more uniform local combustion flame temperature in the combustion chamber.

Abstract translation: 一种用于操作自由活塞式发动机（10）以通过在其压缩冲程期间通过燃烧室活塞关闭排气孔（28）之后将雾化的燃料混合物注入燃烧室的方式来产生相对低量的不需要的NOx 在燃烧室中获得均匀的燃料 - 空气混合物和相对较低且更均匀的局部燃烧火焰温度。

公开(公告)号：WO1996003575A1

公开(公告)日：1996-02-08

申请号：PCT/NL1995000260

申请日：1995-07-26

Applicant: INNAS FREE PISTON B.V. ,  ACHTEN, Peter, Augustinus, Johannes ,  POTMA, Theodorus, Gerhardus ,  ENGEL, Maria, Pauline

Inventor： INNAS FREE PISTON B.V.

IPC: F02B71/02

CPC classification number: F02B71/02 ,  F01L25/06 ,  F02B71/045

Abstract: An hydraulic switching valve (35) comprises, among other parts, a valve housing (45, 62) with a first connection (33, 36) and a second connection (34, 67) and a valve body (37, 63) which is movable in the valve housing (45). The switching valve (35) is open when the pressure at the first connection (33) is higher than the pressure at the second connection (34) as a result of the fact that the pressure difference caused by the movement of the valve body (37) allows a flow past the valve body (37). The switching valve is closed when the pressure at the first connection (33) is lower than the pressure at the second connection (34) as a result of the fact that the movement of the valve body (37) caused by the pressure difference closes a valve seal (40) which blocks the flow. The switching valve (35) further comprises a lock (39) with switching means (42) for selectively keeping the valve seal (40) closed, and unblocking the valve body (37), respectively.

Abstract translation: 液压切换阀（35）包括具有第一连接件（33,36）和第二连接件（34,67）的阀壳体（45,62）和阀体（37,63），阀体 可在阀壳体（45）中移动。 当第一连接部33处的压力高于第二连接部34处的压力时，切换阀35打开，这是由于阀体37的运动引起的压力差 ）允许流过阀体（37）的流动。 当第一连接部33处的压力低于第二连接部34处的压力时，切换阀关闭，这是由于压力差引起的阀体37的移动闭合 阻塞流体的阀密封件（40）。 切换阀（35）还包括具有切换装置（42）的锁（39），用于选择性地保持阀密封（40）关闭，并且分别解除阀体（37）的阻塞。