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1. 发明授权

US06971341B1 Piston lubrication for a free piston engine 失效
标题翻译：活塞式活塞发动机的活塞润滑
公开(公告)号：US06971341B1
公开(公告)日：2005-12-06
申请号：US10853093
申请日：2004-05-25
申请人： Kevin Fuqua , Peter Hofbauer
发明人： Kevin Fuqua , Peter Hofbauer
IPC分类号： F01M1/00 , F01M1/08 , F02B63/04 , F02B71/00 , F02B71/04
CPC分类号： F02B71/045 , F01M2001/083 , F02B63/04 , F02B71/00
摘要： A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each operatively located in a respective one of the engine cylinders, with a push rod connected between the inner pistons. The push rod extends through an inner pumping chamber in the fluid pumping assembly and forms a fluid plunger within this chamber. An outer piston assembly includes a pair of pistons, one each operatively located in a respective one of the engine cylinders, with at least one pull rod connected between the outer pistons. The pull rod extends through an outer pumping chamber in the fluid pumping assembly and forms a fluid plunger within this chamber. The movement of the inner and outer piston assemblies during engine operation will cause the fluid plungers to pump fluid from a low pressure container into a high pressure chamber as a means of storing the energy output from the engine. Alternatively, the piston assemblies may drive a linear alternator. Located adjacent to at least one of the pistons are oil holes, with an oil mist annulus supplying oil mist therethrough. The oil in the oil mist will lubricate the engine cylinder wall while minimizing the oil consumption of the engine.
摘要翻译：自由活塞发动机配置有位于流体泵送组件的相对侧上的一对相对的发动机气缸。内部活塞组件包括一对内部活塞，每个内部活塞各自操作地位于相应的一个发动机气缸中，并且连杆在内部活塞之间。推杆延伸穿过流体泵送组件中的内部泵送室，并在该室内形成流体柱塞。外部活塞组件包括一对活塞，每个活塞各自操作地位于相应的一个发动机气缸中，其中至少一个拉杆连接在外部活塞之间。拉杆延伸穿过流体泵送组件中的外部泵送室，并在该腔室内形成流体柱塞。内部和外部活塞组件在发动机运行期间的移动将导致流体柱塞将流体从低压容器泵送到高压室中，作为存储来自发动机的能量输出的装置。或者，活塞组件可以驱动线性交流发电机。靠近至少一个活塞的是油孔，油雾环通过其中提供油雾。油雾中的油将润滑发动机气缸壁，同时最大限度地减少发动机的油耗。

2. 发明授权

US06941904B1 Air scavenging for an opposed piston opposed cylinder free piston engine 有权
标题翻译：相对活塞相对气缸自由活塞发动机的空气清扫
公开(公告)号：US06941904B1
公开(公告)日：2005-09-13
申请号：US10880070
申请日：2004-06-28
申请人： Ing. Peter Hofbauer , Lixin Peng , Adrain Tusinean , Kevin Fuqua
发明人： Ing. Peter Hofbauer , Lixin Peng , Adrain Tusinean , Kevin Fuqua
IPC分类号： F02B71/00
CPC分类号： F02B75/282 , F02B33/08 , F02B33/14 , F02B71/00
摘要： A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each operatively located in a respective one of the engine cylinders, with a push rod connected between the inner pistons. An outer piston assembly includes a pair of pistons, one each operatively located, in a respective one of the engine cylinders, with at least one pull rod connected between the outer pistons. The pull rod extends through an outer pumping chamber in the fluid pumping assembly and forms a fluid plunger within this chamber. Each outer piston cooperates with an integrated scavenge pump in order to compress the charge air, thus significantly increasing the air charge density into the engine cylinders for each stroke of the engine.
摘要翻译：自由活塞发动机配置有位于流体泵送组件的相对侧上的一对相对的发动机气缸。内部活塞组件包括一对内部活塞，每个内部活塞各自操作地位于相应的一个发动机气缸中，并且连杆在内部活塞之间。外活塞组件包括一对活塞，每个活塞各自操作地定位在相应的一个发动机气缸中，至少一个拉杆连接在外活塞之间。拉杆延伸穿过流体泵送组件中的外部泵送室，并在该腔室内形成流体柱塞。每个外部活塞与集成扫气泵协同工作，以便压缩增压空气，从而将发动机气缸的气流密度大大增加到发动机气缸中。

3. 发明授权

US07077080B2 Hydraulic synchronizing coupler for a free piston engine 失效
标题翻译：用于自由活塞发动机的液压同步联轴器
公开(公告)号：US07077080B2
公开(公告)日：2006-07-18
申请号：US10927861
申请日：2004-08-28
申请人： Joachim Schmuecker , Ing Gunter Guerich , Herman-Josef Laumen , Adrain Tusinean , Kevin Fuqua
发明人： Joachim Schmuecker , Ing Gunter Guerich , Herman-Josef Laumen , Adrain Tusinean , Kevin Fuqua
IPC分类号： F02B71/04
CPC分类号： F02B71/04
摘要： A free piston engine has a pair of opposed cylinders on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each in a respective one of the cylinders, with a push rod connected therebetween. The push rod forms a fluid plunger. An outer piston assembly includes a pair of outer pistons, one each in a respective one of the cylinders, with a pull rod connected therebetween. The pull rod forms a fluid plunger. The movement of the inner and outer piston assemblies during engine operation will cause the fluid plungers to pump fluid from a low pressure container into a high pressure chamber as a means of storing the energy output. A hydraulic coupler synchronizes the inner and outer piston assemblies.
摘要翻译：自由活塞发动机在流体泵送组件的相对侧上具有一对相对的气缸。内部活塞组件包括一对内部活塞，每个内部活塞中的每一个都在相应的一个气缸中，其间连接有推杆。推杆形成流体柱塞。外部活塞组件包括一对外部活塞，每个在相应的一个气缸中，每个都具有连接在其间的拉杆。拉杆形成流体柱塞。内部和外部活塞组件在发动机运行期间的移动将导致流体柱塞将流体从低压容器泵送到高压室中作为存储能量输出的一种手段。液压联轴节使内外活塞组件同步。

4. 发明申请

US20050254979A1 Variable output control for a fixed displacement pump 审中-公开
标题翻译：固定排量泵的可变输出控制
公开(公告)号：US20050254979A1
公开(公告)日：2005-11-17
申请号：US10845908
申请日：2004-05-14
申请人： Kevin Fuqua
发明人： Kevin Fuqua
IPC分类号： F04B1/00 , F04B7/04 , F04B49/03 , F04B49/12 , F04B49/16
CPC分类号： F04B49/121 , F04B49/16
摘要： A device for adjusting the volume of fluid flow produced by a stroke of a piston pump includes a cylinder communicating with an outlet of the pump. A plunger displaces fluid from the cylinder to the outlet as the plunger moves in the cylinder. A lost motion piston moves in the cylinder. A fluid source supplies fluid to a first space in the cylinder located between the plunger and the piston. A port, through which fluid is supplied from the fluid source to a second space in the cylinder, is located above the piston such that the port is opened and closed by the piston. A stop establishes a maximum distance that the piston can move away from plunger toward the port without closing the port.
摘要翻译：用于调节由活塞泵的行程产生的流体流量的装置包括与泵的出口连通的气缸。当柱塞在气缸中移动时，柱塞将流体从气缸移位到出口。活塞活塞在气缸中移动。流体源将液体供应到位于柱塞和活塞之间的气缸中的第一空间。将流体从流体源供应到气缸中的第二空间的端口位于活塞上方，使得端口被活塞打开和关闭。止动器建立活塞可以从柱塞向端口移动而不关闭端口的最大距离。

5. 发明申请

US20060042575A1 Hydraulic synchronizing coupler for a free piston engine 失效
标题翻译：用于自由活塞发动机的液压同步联轴器
公开(公告)号：US20060042575A1
公开(公告)日：2006-03-02
申请号：US10927861
申请日：2004-08-28
申请人： Joachim Schmuecker , Ing Guerich , Herman-Josef Laumen , Adrain Tusinean , Kevin Fuqua
发明人： Joachim Schmuecker , Ing Guerich , Herman-Josef Laumen , Adrain Tusinean , Kevin Fuqua
IPC分类号： F02B71/04
CPC分类号： F02B71/04
摘要： A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each operatively located in a respective one of the engine cylinders, with a push rod connected between the inner pistons. The push rod extends through an inner pumping chamber in the fluid pumping assembly and forms a fluid plunger within this chamber. An outer piston assembly includes a pair of outer pistons, one each operatively located in a respective one of the engine cylinders, with at least one pull rod connected between the outer pistons. The pull rod extends through an outer pumping chamber in the fluid pumping assembly and forms a fluid plunger within this chamber. The movement of the inner and outer piston assemblies during engine operation will cause the fluid plungers to pump fluid from a low pressure container into a high pressure chamber as a means of storing the energy output from the engine. A hydraulic coupler in communication with the pumping chambers will synchronize the motion of the inner and outer piston assemblies to assure that the pistons in the opposed cylinders are operating in opposition to one another.
摘要翻译：自由活塞发动机配置有位于流体泵送组件的相对侧上的一对相对的发动机气缸。内部活塞组件包括一对内部活塞，每个内部活塞各自操作地位于相应的一个发动机气缸中，并且连杆在内部活塞之间。推杆延伸穿过流体泵送组件中的内部泵送室，并在该室内形成流体柱塞。外部活塞组件包括一对外部活塞，每个外部活塞各自操作地位于相应的一个发动机气缸中，其中至少一个拉杆连接在外部活塞之间。拉杆延伸穿过流体泵送组件中的外部泵送室，并在该腔室内形成流体柱塞。内部和外部活塞组件在发动机运行期间的移动将导致流体柱塞将流体从低压容器泵送到高压室中，作为存储来自发动机的能量输出的装置。与泵送室连通的液压耦合器将使内部和外部活塞组件的运动同步，以确保相对气缸中的活塞彼此相对操作。

6. 发明申请

US20060051216A1 High-efficiency, large angle, variable displacement hydraulic pump/motor 失效
公开(公告)号：US20060051216A1
公开(公告)日：2006-03-09
申请号：US11266179
申请日：2005-11-04
申请人： Charles Gray , Andrew Moskalik , Matthew Brusstar , David Gill , Kevin Fuqua , Craig Moffat
发明人： Charles Gray , Andrew Moskalik , Matthew Brusstar , David Gill , Kevin Fuqua , Craig Moffat
IPC分类号： F04B3/00 , F04B27/08
CPC分类号： F04B1/2092 , F04B1/124 , F04B1/128 , F04B1/328 , F16H2039/005
摘要： A variable displacement hydraulic/pump motor has a yoke with a pair of shafts aligned to define a yoke pivot axis and connected to a valve plate therebetween having intake and discharge apertures. A rotatable cylinder barrel has piston cylinders open at one end to receive a piston head and opening through fluid ports at another end, flush against the valve plate surface. A drive block is mounted on an input/output shaft for rotation about a central axis of rotation inclined at an angle relative to the longitudinal axis of the cylinder barrel which may be changed by a drive engaging the yoke at a point near its pivot axis. Loads on bushings supporting the yoke shafts are reduced by providing radially extending fluid ports in the shafts and in communication with the intake and discharge apertures of the valve plate.

7. 发明申请

US20050263114A1 PISTON LUBRICATION FOR A FREE PISTON ENGINE 失效
标题翻译：活塞润滑用于自由活塞发动机
公开(公告)号：US20050263114A1
公开(公告)日：2005-12-01
申请号：US10853093
申请日：2004-05-25
申请人： Kevin Fuqua , Dr. Ing. Hofbauer
发明人： Kevin Fuqua , Dr. Ing. Hofbauer
IPC分类号： F01M1/00 , F01M1/08 , F02B63/04 , F02B71/00 , F02B71/04
CPC分类号： F02B71/045 , F01M2001/083 , F02B63/04 , F02B71/00
摘要： A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each operatively located in a respective one of the engine cylinders, with a push rod connected between the inner pistons. The push rod extends through an inner pumping chamber in the fluid pumping assembly and forms a fluid plunger within this chamber. An outer piston assembly includes a pair of pistons, one each operatively located in a respective one of the engine cylinders, with at least one pull rod connected between the outer pistons. The pull rod extends through an outer pumping chamber in the fluid pumping assembly and forms a fluid plunger within this chamber. The movement of the inner and outer piston assemblies during engine operation will cause the fluid plungers to pump fluid from a low pressure container into a high pressure chamber as a means of storing the energy output from the engine. Alternatively, the piston assemblies may drive a linear alternator. Located adjacent to at least one of the pistons are oil holes, with an oil mist annulus supplying oil mist therethrough. The oil in the oil mist will lubricate the engine cylinder wall while minimizing the oil consumption of the engine.
摘要翻译：自由活塞发动机配置有位于流体泵送组件的相对侧上的一对相对的发动机气缸。内部活塞组件包括一对内部活塞，每个内部活塞各自操作地位于相应的一个发动机气缸中，并且连杆在内部活塞之间。推杆延伸穿过流体泵送组件中的内部泵送室，并在该室内形成流体柱塞。外部活塞组件包括一对活塞，每个活塞各自操作地位于相应的一个发动机气缸中，其中至少一个拉杆连接在外部活塞之间。拉杆延伸穿过流体泵送组件中的外部泵送室，并在该腔室内形成流体柱塞。内部和外部活塞组件在发动机运行期间的移动将导致流体柱塞将流体从低压容器泵送到高压室中，作为存储来自发动机的能量输出的装置。或者，活塞组件可以驱动线性交流发电机。靠近至少一个活塞的是油孔，油雾环通过其中提供油雾。油雾中的油将润滑发动机气缸壁，同时最大限度地减少发动机的油耗。

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