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1. 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。

2. 发明授权

US06904876B1 Sodium cooled pistons for a free piston engine 失效
标题翻译：用于自由活塞发动机的钠冷却活塞
公开(公告)号：US06904876B1
公开(公告)日：2005-06-14
申请号：US10880062
申请日：2004-06-28
申请人： Peter Hofbauer , Adrain Tusinean
发明人： Peter Hofbauer , Adrain Tusinean
IPC分类号： F01P1/04 , F02B71/04 , F02F3/18
CPC分类号： F02F3/18 , 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. Alternatively, the piston assemblies may drive a linear alternator. At least one of the pistons includes one or more generally axially extending bores partially filled with a sodium compound. As the piston reciprocates, the sodium moves back and forth in each cooling bore, thereby better distributing heat in the piston.
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。或者，活塞组件可以驱动线性交流发电机。活塞中的至少一个包括部分地填充有钠化合物的一个或多个通常轴向延伸的孔。当活塞往复运动时，钠在每个冷却孔中前后移动，从而更好地在活塞中分配热量。

3. 发明授权

US06973898B1 Piston stopper for a free piston engine 失效
标题翻译：用于自由活塞发动机的活塞塞
公开(公告)号：US06973898B1
公开(公告)日：2005-12-13
申请号：US10880061
申请日：2004-06-28
申请人： Adrain Tusinean , Lixin Peng , Peter Hofbauer
发明人： Adrain Tusinean , Lixin Peng , Peter Hofbauer
IPC分类号： F02B71/00 , F02B71/04
CPC分类号： F02B71/045
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. Piston stoppers are provided to prevent over-travel of the piston assemblies.
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。提供活塞塞以防止活塞组件过度运动。

4. 发明授权

US07032548B2 Piston guides for a free piston engine 失效
标题翻译：活塞引擎的活塞引导
公开(公告)号：US07032548B2
公开(公告)日：2006-04-25
申请号：US10880071
申请日：2004-06-28
申请人： Adrain Tusinean
发明人： Adrain Tusinean
IPC分类号： F02B71/00
CPC分类号： F02B71/045
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. Alternatively, the piston assemblies may drive a linear alternator. Piston guide posts are fixed and guide the outer pistons as they reciprocate within the engine cylinders.
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。或者，活塞组件可以驱动线性交流发电机。活塞导柱固定并在外部活塞在发动机气缸内往复运动时引导。

5. 发明申请

US20050284428A1 PISTON STOPPER FOR A FREE PISTON ENGINE 失效
标题翻译：活塞式止动器，用于免费的活塞式发动机
公开(公告)号：US20050284428A1
公开(公告)日：2005-12-29
申请号：US10880061
申请日：2004-06-28
申请人： Adrain Tusinean , Lixin Peng , Ing. Hofbauer
发明人： Adrain Tusinean , Lixin Peng , Ing. Hofbauer
IPC分类号： F02B71/00 , F02B71/04
CPC分类号： F02B71/045
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. Since the motion of the free pistons is not mechanically fixed, piston stoppers are provided to prevent over-travel of the piston assemblies, thereby limiting potential damage to engine components.
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。由于自由活塞的运动不是机械地固定的，所以提供活塞止动件以防止活塞组件的过度运动，从而限制对发动机部件的潜在损害。

6. 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。

7. 发明申请

US20050284426A1 Piston guides for a free piston engine 失效
标题翻译：活塞引擎的活塞引导
公开(公告)号：US20050284426A1
公开(公告)日：2005-12-29
申请号：US10880071
申请日：2004-06-28
申请人： Adrain Tusinean
发明人： Adrain Tusinean
IPC分类号： F02B71/00 , F02B71/04
CPC分类号： F02B71/045
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. Alternatively, the piston assemblies may drive a linear alternator. Piston guide posts are fixed and guide the outer pistons as they reciprocate within the engine cylinders.
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。或者，活塞组件可以驱动线性交流发电机。活塞导柱固定并在外部活塞在发动机气缸内往复运动时引导。

8. 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。

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