公开(公告)号：US4389849A

公开(公告)日：1983-06-28

申请号：US308204

申请日：1981-10-02

申请人： James M. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Beggs ,  Max G. Gasser ,  Allan Sherman ,  Philip A. Studer ,  Alexander Daniels ,  Michael P. Goldowsky

发明人： James M. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Beggs ,  Max G. Gasser ,  Allan Sherman ,  Philip A. Studer ,  Alexander Daniels ,  Michael P. Goldowsky

IPC分类号： H02K33/00 ,  F02G1/043 ,  F02G1/053 ,  F04B35/04 ,  F16C39/06 ,  F25B9/14 ,  H02K11/00 ,  H02K33/16 ,  F25B9/00

CPC分类号： F16C32/0444 ,  F02G1/0435 ,  F02G1/053 ,  F25B9/14 ,  F02G2258/10 ,  F02G2280/10 ,  F25B2309/001

摘要： A long lifetime Stirling cycle cryogenic cooler particularly adapted for space applications comprised of a compressor section (10) centrally aligned end to end with an expansion section (12) and respectively including a reciprocating compressor piston (14) and displacer (16) radially suspended in interconnecting cylindrical housings (18, 20) by active magnetic bearings (26, 28, 30, 32) and having adjacent reduced clearance regions (82, 84, 108) so as to be in non-contacting relationship therewith and wherein one or more of these regions operate as clearance seals. The piston (14) and displacer (16) are reciprocated in their housings (18, 20) by linear drive motors (48, 52) to vary the volume of respectively adjacent compression and expansion spaces (44, 46) which contain a gaseous working fluid and a thermal regenerator (95) to effect Stirling cycle cryogenic cooling. Electrical circuit means (140, 142) are additionally included for energizing the magnetic bearings (26, 28, 30, 32) and for controlling the stroke amplitudes and relative phase angle between the compressor piston (14) and displacer (16) during the cooling cycle.

摘要翻译： 长寿命的斯特林循环低温冷却器特别适用于空间应用，包括一个压缩机部分（10），其中心地对准端部与膨胀段（12）并且分别包括往复式压缩机活塞（14）和径向悬浮在其中的置换器（16） 通过主动磁性轴承（26,28,30,32）互连圆柱形壳体（18,20）并且具有相邻的减少的间隙区域（82,84,108），以便与其处于非接触关系，并且其中一个或多个 这些区域作为间隙密封。 活塞（14）和置换器（16）通过线性驱动马达（48,52）在其壳体（18,20）中往复运动，以改变相邻的压缩和膨胀空间（44,46）的体积，所述压缩和膨胀空间（44,46） 流体和热再生器（95）以实现斯特林循环低温冷却。 还包括电路装置（140,142），用于激励磁性轴承（26,28,30,32），并且用于在冷却期间控制压缩机活塞（14）和置换器（16）之间的行程幅度和相对相位角 周期。

公开(公告)号：US5003935A

公开(公告)日：1991-04-02

申请号：US276943

申请日：1988-11-28

申请人： Michael P. Goldowsky

发明人： Michael P. Goldowsky

IPC分类号： F02B73/00 ,  F02B75/02 ,  F02B75/16 ,  F02B75/18 ,  F02B75/22 ,  F02B75/34

CPC分类号： F02B75/222 ,  F02B75/16 ,  F02B75/34 ,  F02B2075/025 ,  F02B2075/027 ,  F02B2075/1824 ,  F02B73/00 ,  F05C2201/021 ,  Y10S123/01 ,  Y10S123/03 ,  Y10S123/08

摘要： A low cost multi cylinder radial aircraft engine is composed of an even number of individually functional, single cylinder slider crank model engines. They are mounted to a plate to form equally spaced radially oriented cylinders. In the preferred embodiment, use of standard, low cost, & mass produced two cycles engines are used. This in conjunction with a novel exhaust muffler and throttle mechanism results in a low cost radial engine. The individual engine shafts surround and are parallel to a central output shaft. Pinion gears on each shaft transfer power to a larger sun gear on the output shaft. This gearing synchronizes opposed pistons to reach top dead center at the same time resulting in vibration free piston motion and perfect balance of the entire engine. Said gearing also provides speed reduction for use of large diameter scale propellers. A rear mounted throttle mechanism controls individual carburetor throttles. Each cylinder radially exhausts into a donut shaped exhaust manifold that also serves as a muffler at the front of the engine. It very effectively lowers cylinder exhaust noise by using opposed flow impingement. The muffler also utilizes turbulent gas cooling to greatly reduce exhaust gas temperature and energy. This results in very low noise like its 4 cycle competitor.

摘要翻译： 低成本多缸径向飞机发动机由偶数个独立功能的单缸滑块曲柄模型发动机组成。 它们被安装到板上以形成等间隔的径向定向的气缸。 在优选实施例中，使用标准，低成本和大批量生产的两个循环发动机。 这与一种新颖的排气消声器和节气门机构结合导致了低成本的径向发动机。 各个发动机轴围绕并平行于中央输出轴。 每个轴上的小齿轮将功率传递到输出轴上较大的太阳齿轮。 这个齿轮传动装置使相对的活塞同步到达上止点，同时产生无振动的活塞运动和整个发动机的完美平衡。 所述传动装置还提供使用大直径螺旋桨的减速。 后部安装的节气门机构控制各个化油器节流阀。 每个气缸径向排放到也可用作发动机前部消音器的环形排气歧管中。 它通过使用相对的流动冲击非常有效地降低了汽缸排气噪声。 消声器还利用湍流气体冷却来大大降低废气温度和能量。 这导致非常低的噪音，如其4周期竞争对手。

公开(公告)号：US4957072A

公开(公告)日：1990-09-18

申请号：US334600

申请日：1989-05-15

申请人： Michael P. Goldowsky

发明人： Michael P. Goldowsky

IPC分类号： F02B73/00 ,  F02B75/02 ,  F02B75/16 ,  F02B75/18 ,  F02B75/22 ,  F02B75/34

CPC分类号： F02B75/34 ,  F02B75/16 ,  F02B75/222 ,  F02B2075/025 ,  F02B2075/027 ,  F02B2075/1824 ,  F02B73/00 ,  F05C2201/021 ,  Y10S123/01 ,  Y10S123/03 ,  Y10S123/08

摘要： A low cost multi cylinder radial aircraft engine is composed of an even number of individually functional, single cylinder slider crank model engines. They are mounted to a plate to form equally spaced radially oriented cylinders. In the preferred embodiment, use of standard, low cost, & mass produced two cycles engines are used. This in conjunction with a novel exhaust muffler and throttle mechanism results in a low cost radial engine. The individual engine shafts surround and are parallel to a central output shaft. Pinion gears on each shaft transfer power to a larger sun gear on the output shaft. This gearing synchronizes opposed pistons to reach top dead center at the same time resulting in vibration free piston motion and perfect balance of the entire engine. Said gearing also provides speed reduction for use of large diameter scale propellers. A rear mounted throttle mechanism controls individual carburetor throttles. Each cylinder radially exhausts into a donut shaped exhaust manifold that also serves as a muffler at the front of the engine. It very effectively lowers cylinder exhaust noise by using opposed flow impingement. The muffler also utilizes turbulent gas cooling to greatly reduce exhaust gas temperature and energy. This results in very low noise like its 4 cycle competitor.

摘要翻译： 低成本多缸径向飞机发动机由偶数个独立功能的单缸滑块曲柄模型发动机组成。 它们被安装到板上以形成等间隔的径向定向的气缸。 在优选实施例中，使用标准，低成本和大批量生产的两个循环发动机。 这与一种新颖的排气消声器和节气门机构结合导致了低成本的径向发动机。 各个发动机轴围绕并平行于中央输出轴。 每个轴上的小齿轮将功率传递到输出轴上较大的太阳齿轮。 这个齿轮传动装置使相对的活塞同步到达上止点，同时产生无振动的活塞运动和整个发动机的完美平衡。 所述传动装置还提供使用大直径螺旋桨的减速。 后部安装的节气门机构控制各个化油器节流阀。 每个气缸径向排放到也可用作发动机前部消音器的环形排气歧管中。 它通过使用相对的流动冲击非常有效地降低了汽缸排气噪声。 消声器还利用湍流气体冷却来大大降低废气温度和能量。 这导致非常低的噪音，如其4周期竞争对手。