公开(公告)号：US4408456A

公开(公告)日：1983-10-11

申请号：US168716

申请日：1980-07-14

申请人： Jeffrey S. Rauch

发明人： Jeffrey S. Rauch

IPC分类号： F02G1/043 ,  F02G1/06

CPC分类号： F02G1/0435 ,  F02G2244/50 ,  F02G2258/10

摘要： A power control is disclosed for a free piston Stirling engine having a hermetically sealed vessel enclosing a working space in which oscillates a displacer for circulating working gas through a heater, a regenerator and a cooler for creating a pressure wave in the working gas which acts against a power piston for a producing power stroke. The displacer includes a post mounted in a well which forms a gas spring and cooperates with the working gas pressure wave to maintain the displacer in axial reciprocating motion. The post includes a tapered portion which reciprocates opposite a proximity probe to produce a unique signal for each axial position of the displacer to provide stroke, phase and amplitude information regarding the displacer motion. A gas spring volume control is provided, controlled by the displacer sensor, for adjusting the gas spring stiffness to control the amplitude and phase of the displacer required to produce the power to meet the engine load requirements.

摘要翻译： 公开了一种用于自由活塞斯特林发动机的动力控制装置，其具有封闭工作空间的气密密封容器，在该工作空间中振荡用于使工作气体循环通过加热器，再生器和冷却器的置换器，用于在工作气体中产生压力波， 用于产生动力冲程的动力活塞。 置换器包括安装在井中的柱，其形成气体弹簧并与工作气体压力波协作以保持置换器处于轴向往复运动。 该柱包括与邻近探针相对往复运动的锥形部分，以产生用于置换器的每个轴向位置的唯一信号，以提供关于置换器运动的冲程，相位和幅度信息。 提供气体弹簧体积控制器，由置换器传感器控制，用于调节气体弹簧刚度，以控制产生功率以满足发动机负载要求所需的置换器的振幅和相位。

公开(公告)号：US4382363A

公开(公告)日：1983-05-10

申请号：US270893

申请日：1981-06-05

申请人： Jeffrey S. Rauch

发明人： Jeffrey S. Rauch

IPC分类号： F02G1/043 ,  F02G1/04

CPC分类号： F02G1/0435

摘要： A free piston Stirling engine includes a hermetically sealed vessel enclosing a working space which is filled with a working gas such as helium. A displacer is mounted in the working space on a suspension apparatus for axial reciprocation to displace working gas back and forth sequentially through a heater, a regenerator, and a cooler to create a cyclic pressure wave which drives a power piston. The displacer is connected to a mounting flange fixed to the vessel by a bellows which permits the displacer to move axially. A diaphragm is connected to the mounting flange and seals an oil cavity whose sides are defined by the bellows. The top of the oil cavity is formed by a transverse wall in the displacer, in which is formed a cylinder which receives a stationary piston mounted on a spider in the oil cavity and fastened to the mounting flange. The axial motion of the displacer is accommodated by the bellows, and the distributed pressure forces of the working gas pressure wave are conducted through the diaphragm and fluid in the cavity to the displacer transverse wall. The volumetric displacement of fluid in the cavity caused by axial expansion and compression of the bellows is accommodated by a corresponding displacement of the cylinder relative to the fixed piston, so the volume in the cavity stays virtually constant and the only substantial stress to which the diaphragm is subjected is the displacement induced stress that enables the diaphragm to function as a centering spring, and not pressure induced stress.

摘要翻译： 一个自由活塞斯特林发动机包括一个封闭的工作空间的气密密封容器，其上装有工作气体如氦气。 置换器安装在用于轴向往复运动的悬挂装置上的工作空间中，以依次通过加热器，再生器和冷却器来回移动工作气体，以产生驱动动力活塞的循环压力波。 置换器通过允许置换器轴向移动的波纹管连接到固定到容器的安装凸缘。 隔膜连接到安装法兰上，并密封其侧面由波纹管限定的油腔。 油腔的顶部由置换器中的横向壁形成，其中形成有缸，其容纳安装在油腔中的蜘蛛上并固定到安装凸缘的固定活塞。 置换器的轴向运动由波纹管容纳，并且工作气体压力波的分布的压力通过隔膜和空腔中的流体传导到置换器横向壁。 由于波纹管的轴向膨胀和压缩引起的空腔中的流体的体积位移由圆柱体相对于固定活塞的相应位移来适应，因此腔体中的体积几乎保持不变，并且仅有明显的应力 受到的是位移引起的应力，使得隔膜能够用作定心弹簧，而不是压力引起的应力。

公开(公告)号：US4400941A

公开(公告)日：1983-08-30

申请号：US270610

申请日：1981-06-05

申请人： Jeffrey S. Rauch

发明人： Jeffrey S. Rauch

IPC分类号： F02G1/043 ,  F02G1/053 ,  F16F7/104 ,  F02G1/04

CPC分类号： F16F7/104 ,  F02G1/0435 ,  F02G1/053 ,  F02G2243/24

摘要： A free piston Stirling engine has a hermetic vessel containing a displacer piston and a power piston coupled to each other and to the vessel by gas springs. An additional mass is coupled to the vessel by a gas spring which is tuned to the operating frequency of the engine geometrically. The vibration absorber is effective at all engine frequencies because the absorber gas spring follows the engine working gas mean pressure and changes the absorber natural frequency as the engine frequency changes.

摘要翻译： 一个自由活塞斯特林发动机具有一个密闭容器，该密封容器包含一个置换器活塞和一个动力活塞，它们通过气体弹簧相互联接到容器。 另外的质量通过气体弹簧耦合到容器，气弹簧被几何地调节到发动机的工作频率。 减震器在所有发动机频率下都是有效的，因为吸收器气体弹簧遵循发动机工作气体的平均压力，并随着发动机频率的变化而改变吸收器的固有频率。

公开(公告)号：US4372115A

公开(公告)日：1983-02-08

申请号：US270974

申请日：1981-06-05

申请人： Jeffrey S. Rauch

发明人： Jeffrey S. Rauch

IPC分类号： F02G1/043 ,  F02G1/053 ,  F02G1/04

CPC分类号： F02G1/0435 ,  F02G1/053 ,  F02G2243/24

摘要： A free piston Stirling engine having a free displacer mounted in a sealed vessel and suspended on a diaphragm. A rigid wall on the displacer forms, with the diaphragm, a closed oil cavity. A moving wall such as a piston or bellows in the rigid wall accommodates volmetric changes in the cavity when the displacer oscillates in the engine working space to control pressure induced stresses in the diaphragm.

摘要翻译： 具有安装在密封容器中并悬挂在隔膜上的自由置换器的自由活塞斯特林发动机。 置换器上的刚性壁与隔膜形成封闭的油腔。 当置换器在发动机工作空间中振荡时，诸如刚性壁中的活塞或波纹管的移动壁容纳空腔中的波动变化，以控制隔膜中的压力引起的应力。