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公开(公告)号：US4811563A
公开(公告)日：1989-03-14
申请号：US177396
申请日：1988-04-04
CPC分类号： F16F15/22 , F02G1/0435 , F02G1/053 , F02G2243/02 , F02G2258/80 , F02G2270/50 , F02G2270/80 , F02G2275/10 , F02G2280/10
摘要： In a vibration-reducing apparatus for a direct-acting type stirling engine, a change of pressure caused by the reciprocal movement of a displacer is applied to a power piston to produce a mechanical force, and the mechanical force is converted into an electric power by a direct-acting type electric generator which is directly connected to the power piston so as to effect reciprocating movements with the power piston. Such apparatus comprises a vibration-controlling actuator fixed to a cylinder to produce a vibration-controlling force in response to a drive-controlling signal given by the outside thereof, a detector for detecting an unbalanced movement by a force of inertia in the reciprocating movements of a direct-driving part consisting of the power piston and the direct-acting type electric generator, and a control circuit for receiving a detection signal from the detector to control the vibration-controlling actuator so that the vibration-controlling force of the vibration-controlling actuator cancels the unbalanced movement by the force of inertia caused by the reciprocating movements of the direct driving part.
摘要翻译： 在用于直动式斯特林发动机的减振装置中，将由置换器的往复运动引起的压力变化施加到动力活塞以产生机械力，并且通过以下方式将机械力转换成电力： 直动式发电机直接连接到动力活塞上，以便与动力活塞进行往复运动。 这种装置包括一个固定在气缸上的振动控制致动器，以产生响应由其外部给出的驱动控制信号的振动控制力;检测器，用于通过往复运动中的惯性力来检测不平衡运动 由动力活塞和直动式发电机组成的直接驱动部，以及控制电路，用于接收来自检测器的检测信号，以控制振动控制致动器，使得振动控制的振动控制力 执行器通过由直接驱动部件的往复运动引起的惯性力来抵消不平衡运动。
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公开(公告)号：US4894996A
公开(公告)日：1990-01-23
申请号：US330325
申请日：1989-03-28
CPC分类号： F16C32/0685 , F02G1/053 , F25B9/14 , F25B2309/001
摘要： A refrigerator comprising a cold finger having an expansion space and a first compression space defined by a displacer, a regenerator connected to the expansion space and the first compression space, a cylinder having a second compression space and a buffer space defined by a piston, and a communicating tube connecting the first compression space to the second compression space. The working space thus defined is filled with the working gas so that a thermodynamic cycle can be generated in the working gas within the working space to generate coldness within the expansio space by reciprocatingly moving the piston and the displacer with a predetermined phase relationship therebetween. The refrigerator further comprises a first passage having a check valve between the working space and the buffer space, and a second connecting passage connecting the drain space and the buffer space. A hydrostatic displacer bearing is provided for hydrostatically supporting the displacer against the cold finger utilizing a differential pressure of the working gas between the working space and the drain space.
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公开(公告)号：US4822390A
公开(公告)日：1989-04-18
申请号：US213858
申请日：1988-06-30
CPC分类号： F25B9/14 , F04B35/045 , F02G2243/06 , F25B2309/001
摘要： A refrigerator has a reciprocation portion including a piston and a portion of a linear motor and having an angular resonance frequency W defined by the following equation: ##EQU1## where m=total mass of the reciprocation portionSp=area of a working surface of the pistonPa=amplitude of pressure variation of a working gas in a compression space of the refrigerator.alpha.=phase difference between a displacement of the piston and pressure variation of the working gas in the compression spaceS=stroke of the pistonKs=spring constant of a support spring of the pistonand an a.c. power source for driving the reciprocation portion, the power source has an angular frequency W.sub.o substantially equal to said angular frequency W with an acceptable error therebetween being .+-.10%.
摘要翻译： 冰箱具有包括活塞和直线电动机的一部分的往复运动部分，并且具有由以下等式定义的角共振频率W.其中m =往复运动部分的总质量Sp =工作表面的面积 活塞Pa =冰箱压缩空间中工作气体的压力变化幅度α=活塞位移与压缩空间内工作气体的压力变化之间的相位差S =活塞冲程Ks =弹簧常数 活塞的支撑弹簧和交流 用于驱动往复运动部分的电源，电源具有基本上等于所述角频率W的角频率Wo，其间的可接受误差为+/- 10％。
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公开(公告)号：US4872313A
公开(公告)日：1989-10-10
申请号：US239822
申请日：1988-09-02
CPC分类号： F04B35/045 , F25B9/14 , F25B2309/001
摘要： A gas cycle machine includes a moving coil composed of a first moving coil portion and a second moving coil portion opposing to the first moving coil portion and a magnetic circuit is constituted such that magnetic flux in a first gap in which the first moving coil portion is disposed passes through the first moving coil portion inwardly and magnetic flux in a second gap in which the second moving coil portion is disposed passes through the latter outwardly. Magnetic flux of a permanent magnet passes through the first and the second gaps in opposite directions, respectively, and, therefore, a closed magnetic circuit is composed of the permanent magnet, a cylinder of soft iron and an annular disc, which eliminates the necessity of providing a large circular disc as in the conventional engine.
摘要翻译： 一种气体循环机包括由第一动圈和第二活动线圈部分相对的第一动圈和第二活动线圈部分构成的运动线圈，并且磁路被构成为使得第一运动线圈部分的第一间隙中的磁通量 配置通过第一动圈管部分向内通过，其中设置第二动圈管部分的第二间隙中的磁通量向外穿过该第二动圈管部分。 永磁体的磁通分别通过第一和第二间隙，因此，闭合磁路由永磁体，软铁圆筒和环形盘组成，这消除了必要性 提供如常规发动机中的大圆盘。
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公开(公告)号：US4856283A
公开(公告)日：1989-08-15
申请号：US168078
申请日：1988-03-14
IPC分类号： F25B9/14
CPC分类号： F25B9/14 , F25B2309/003
摘要： A cold finger portion of a refrigerator is coupled to a movable member by means of a spring member having a linear characteristics to form a vibration system make phase difference between pressure variation and movement of the movable member and amplitude thereof possible to set at optimum values and to make a center of movement of the movable member constant by the linearity of the spring member regardless of operating condition.
摘要翻译： 冰箱的冷手指部分通过具有线性特性的弹簧部件联接到可移动部件，以形成振动系统，使得压力变化与可移动部件的运动之间的相位差和振幅可以设定在最佳值， 通过弹簧构件的线性使可动构件的移动中心恒定，而与操作条件无关。
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公开(公告)号：US4969807A
公开(公告)日：1990-11-13
申请号：US387040
申请日：1989-07-31
CPC分类号： F04B35/045 , F25B9/14 , F25B2309/001
摘要： A gas compressor for use in a gas refrigerator includes a compression space having a volume varied with a positional shift of a piston when the latter reciprocates in a cylinder, a first buffer space communicating with the compression space in one direction with respect to the compression space and a second buffer space communicating with the compression space in the opposite direction. Forces acting on working surfaces of the piston are set in such a way that, when a reciprocation stroke of the piston is to be lengthened, a shift of a neutral position of the piston reciprocation toward the compression space is prevented and, when the reciprocation stroke is to be shortened, a shift of the neutral position away from the compression space is prevented, so that the dead space in the compression space is minimized and a highly efficient operation can be realized in a wide output control range.
摘要翻译： 一种用于气体制冷机的气体压缩机包括：压缩空间，其具有当活塞在气缸中往复运动时活塞的位置偏移而变化的体积;与压缩空间相对于压缩空间在一个方向上连通的第一缓冲空间 以及与所述压缩空间在相反方向连通的第二缓冲空间。 作用在活塞的工作表面上的力被设定成使得当活塞的往复行程被延长时，可以防止活塞往复运动的中立位置朝向压缩空间的偏移，并且当往复行程 要缩短，防止中立位置离开压缩空间的偏移，使得压缩空间中的死区最小化，并且可以在宽的输出控制范围内实现高效率的操作。
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公开(公告)号：US4922722A
公开(公告)日：1990-05-08
申请号：US330856
申请日：1989-03-31
CPC分类号： F25B9/14 , F16F1/08 , F16F2228/066
摘要： A Stirling refrigerator has a cold-finger in which a displacer can reciprocate in accordance with changes in pressure inside the cold-finger which are produced by a compressor. A spring is connected between the displacer and the cold-finger in order to brake gradually the movement of the displacer at the ends of its stroke. The spring has a greater spring constant when it is deformed by the displacer being near either end of its stroke than when the spring is in, or near, a neutral position.
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