Scroll-type fluid machine with different terminal end wrap angles
    2.
    发明授权
    Scroll-type fluid machine with different terminal end wrap angles 失效
    滚动式流体机器具有不同的端头包装角度

    公开(公告)号:US4904170A

    公开(公告)日:1990-02-27

    申请号:US233000

    申请日:1988-08-17

    IPC分类号: F04C18/02 F01C1/02

    CPC分类号: F01C1/0246

    摘要: A scroll-type fluid machine comprises a stationary scroll member, an orbiting scroll member, a rotation-prevention mechanism for the orbiting scroll member, and a casting accommodating therein both members and the mechanism. The involute angle of a terminal end of a wrap of the orbiting scroll member is selected to be less than that of the wrap of the stationary scroll member by an angle which ranges between 60.degree. and 120.degree., preferably, about 90.degree., thereby reducing a level of force applied to the rotation-prevention mechanism which prevents the orbiting scroll member from rotating about its own axis.

    摘要翻译: 涡卷式流体机械包括固定涡旋件,绕动涡旋件,用于绕动涡旋件的旋转防止机构,以及容纳其中的两个部件和机构的铸件。 旋转涡旋构件的涡卷的末端的渐开线角度选择为小于固定涡旋构件的卷绕的倾斜角度在60°至120°之间的角度,优选地为约90°,从而减小 施加到防止旋转的机构的力的水平,其防止绕动涡旋件围绕其自身的轴线旋转。

    Oil feeding device for scroll fluid apparatus
    3.
    发明授权
    Oil feeding device for scroll fluid apparatus 失效
    用于涡旋流体装置的给油装置

    公开(公告)号:US4749344A

    公开(公告)日:1988-06-07

    申请号:US42700

    申请日:1987-04-27

    CPC分类号: F01C21/04

    摘要: An oil feeding device for a scroll fluid apparatus. A fixed scroll member is associated with an orbiting scroll member. A crankshaft rotatably supported by a bearing of a frame has a crank portion engaging with a plain bearing of the orbiting scroll member. A variable speed driving motor is connected to the crankshaft. An oil feeding passageway is provided in the crankshaft and the crank portion. Oil is supplied to the plain bearing of the orbiting scroll member through a space at the end face of the crank portion. An oil flow passage is provided in parallel with the axis and in a surface of the crank portion located at a position advanced through approximately 45 degrees toward the rotational direction of the crank portion, from a position at which the load acting radially of the shaft due to the centrifugal force caused by the orbiting motion of the orbiting scroll member is applied to the crank portion of the shaft.

    摘要翻译: 一种用于涡旋流体装置的供油装置。 固定涡旋构件与旋转涡旋构件相关联。 由框架的轴承可旋转地支撑的曲轴具有与旋转涡旋构件的滑动轴承接合的曲柄部。 变速驱动电动机连接到曲轴。 在曲轴和曲柄部分设置供油通道。 油通过曲柄部分的端面处的空间供给到绕动涡旋件的滑动轴承。 一个油流通道与轴线平行地设置在曲柄部分的表面上,该曲柄部分位于从轴的径向方向施加的负载的位置处,该曲柄部分位于从曲柄部分的旋转方向前进大约45度的位置 由于绕动涡旋构件的旋转运动引起的离心力被施加到轴的曲柄部分。

    Refrigerating system using scroll type compressor
    4.
    发明授权
    Refrigerating system using scroll type compressor 失效
    制冷系统采用涡旋式压缩机

    公开(公告)号:US4382370A

    公开(公告)日:1983-05-10

    申请号:US313496

    申请日:1981-10-21

    摘要: A refrigerating system including a refrigeration circuit and a scroll type compressor provided with two volume control mechanisms to allow the system to selectively perform full load operation and unloaded operation. The scroll type compressor includes two scroll members of known construction meshing with each other to define compression chambers and a suction chamber and is combined with the refrigeration circuit having an outdoor heat exchanger, an expansion valve, an indoor heat exchanger and a four-way change-over valve to provide a heat pump type refrigerating system. The volume control mechanisms each include a pair of bypass apertures in the fixed scroll member communicating with a valve chamber having a valve member slidably mounted therein and normally biased to an open position by a spring. The bypass apertures, of which one communicates with the suction chamber and the other communicates with one of the compression chambers, and the valve chamber constitute a bypass passageway. A pressure introducing pipe opens in the valve chamber. Upward movement of the valve member brings the two bypass apertures in communication with each other through the valve chamber to enable the system to perform a volume control operation. In another application, four volume control mechanisms are located symmetrically and divided into two blocks through a flow passage switching device to assign two mechanisms to one block. By this arrangement, the system is able to perform volume control operation in three stages, or able to operate selectively at maximum load, intermediate load and minimum load.

    摘要翻译: 一种制冷系统,包括制冷回路和涡旋式压缩机,该压缩机设置有两个容积控制机构,以允许系统选择性地执行满载操作和卸载操作。 涡旋式压缩机包括两个已知构造的涡旋构件,其彼此啮合以限定压缩室和吸入室,并与具有室外热交换器,膨胀阀,室内热交换器和四通变换的制冷回路组合 提供一种热泵式制冷系统。 音量控制机构各自包括在固定涡旋构件中的一对旁通孔,其与具有可滑动地安装在其中的阀构件的阀室连通,并且通过弹簧通常偏压到打开位置。 旁通孔与吸入室连通,另一个与一个压缩室连通,并且阀室构成旁路通路。 压力引入管在阀室中打开。 阀构件的向上运动使两个旁通孔通过阀室彼此连通,以使系统能够执行体积控制操作。 在另一个应用中,四个音量控制机构被对称地定位并且通过流路切换装置分成两个块,以将两个机构分配给一个块。 通过这种安排,该系统能够在三个阶段进行音量控制操作,或能够在最大负载,中间负载和最小负载下选择性地进行操作。

    Scroll-type fluid machine with back pressure chamber biasing an orbiting
scroll member
    5.
    发明授权
    Scroll-type fluid machine with back pressure chamber biasing an orbiting scroll member 失效
    涡旋式流体机器,其背压室偏置绕动涡旋件

    公开(公告)号:US4557675A

    公开(公告)日:1985-12-10

    申请号:US621371

    申请日:1984-06-18

    摘要: A scroll-type fluid machine having an orbiting scroll member and a stationary scroll member each having an end plate and a spiral wrap of at least two turns protruding upright from one of the sides of the end plates. The orbiting scroll member has a back pressure chamber formed on the back side thereof and communicating with the compression spaces of the fluid machine through pressure equalizing ports formed in the orbiting scroll member, so that the pressure of the fluid under compression is introduced to the back pressure chamber to produce an axial thrusting force for pressing the orbiting scroll member towards the stationary scroll member. The positions of the pressure equalizing ports in terms of the wrap angle .lambda. of the wraps are selected to meet the following condition:.lambda.d>.lambda.>.lambda.d-2.pi.,where, .lambda.d represents the wrap angle of the wraps when the volume of the compression spaces is minimized. The equalizing ports are positioned at .lambda. and .lambda.+2 .pi..

    摘要翻译: 一种涡旋式流体机械,具有绕动涡旋件和固定涡旋件,每个涡卷件和固定涡旋件均具有端板和至少两匝螺旋形卷绕,该螺旋卷绕件从端板中的一个侧面竖直突出。 绕动涡旋构件具有形成在其后侧的背压室,并且通过形成在绕动涡旋构件中的压力平衡端口与流体机械的压缩空间连通,使得压缩下的流体的压力被引入到后部 以产生用于将动涡旋构件朝静止涡旋构件按压的轴向推压力。 根据包装的包角λ来选择压力平衡端口的位置以满足以下条件:λd>λ>λd-2 pi,其中,λd表示卷的卷绕角度 的压缩空间被最小化。 均衡端口位于λ和λ+ 2 pi处。

    Hermetic motor-compressor
    6.
    发明授权
    Hermetic motor-compressor 失效
    密闭式电动压缩机

    公开(公告)号:US4352642A

    公开(公告)日:1982-10-05

    申请号:US136675

    申请日:1980-04-02

    CPC分类号: F04B39/123 Y10S417/902

    摘要: A hermetic motor-compressor for a refrigerating system. The hermetic motor-compressor has a motor component and a compressor component drivingly coupled to each other and disposed within a closed container. The refrigerant gas introduced from an evaporator of a refrigerating system through a return pipe is once released into the space within the closed container and then sucked by the compressor component so as to be compressed and discharged to the outside. A barrier is provided on the outer periphery of the motor and compressor components for preventing a main flow of the refrigerant gas introduced into the closed container through the return pipe from flowing into the circumference of high-temperature portions of the hermetic motor-compressor.

    摘要翻译: 一种用于制冷系统的密封式电动压缩机。 密闭式电动压缩机具有驱动地彼此联接并设置在密闭容器内的电动机部件和压缩机部件。 从制冷系统的蒸发器通过返回管引入的制冷剂气体一度释放到密闭容器内的空间中,然后被压缩机部件吸入,以被压缩并排出到外部。 在马达和压缩机部件的外周设置有阻挡件,用于防止通过返回管引入到密闭容器中的制冷剂气体的主流流入密封电动机 - 压缩机的高温部分的周围。

    Scroll-type fluid machine with radial clearance between wraps
    7.
    发明授权
    Scroll-type fluid machine with radial clearance between wraps 失效
    涡卷式流体机器在包装之间具有径向间隙

    公开(公告)号:US4579512A

    公开(公告)日:1986-04-01

    申请号:US661915

    申请日:1984-10-17

    摘要: A scroll-type fluid machine having a stationary scroll member and an orbiting scroll member each of which includes a disc-like end plate and a spiral wrap extending axially from one side of the end plate, with the wraps of the scroll members meshing with each other to define therebetween closed compression chambers. The orbiting scroll member is disposed between the end plate of the stationary scroll member and a frame of the machine with a back clearance between the other side of the end plate of the orbiting scroll member side thereof and the opposing surface of the frame. The orbiting scroll member is driven to make an orbiting movement with respect to the stationary scroll member so that the compression chambers are progressively moved towards the center of the scroll members while decreasing their volumes, to thereby suck a fluid through a suction port in the stationary scroll member and compress the same to discharge the compressed fluid through a discharge port formed in the stationary scroll member. The radial clearance between the wraps of both scroll members is selected to meet a specific condition so as to avoid mutual contact between the wraps of the scroll members even when the orbiting scroll member is inclined with respect to the horizontal plane.

    摘要翻译: 一种涡旋式流体机械,其具有固定涡旋构件和绕动涡旋构件,每个涡旋构件包括盘状端板和从端板的一侧轴向延伸的螺旋形涡卷,涡旋构件的涡卷与每个 另一个在其间限定封闭的压缩室。 绕动涡旋构件设置在固定涡旋构件的端板和机器框架之间,在其绕动涡旋构件侧的端板的另一侧和框架的相对表面之间具有后间隙。 驱动绕动涡旋构件相对于静止涡旋构件进行轨道运动,使得压缩室在减小其体积的同时逐渐向着涡旋构件的中心移动,从而通过静止的吸入口吸入流体 涡旋构件并将其压缩以通过形成在固定涡旋构件中的排出口排出压缩流体。 选择两个涡旋构件的涡卷之间的径向间隙以满足特定条件,以便即使当绕动涡旋构件相对于水平面倾斜时也可避免涡旋构件的涡卷之间的相互接触。

    Capacity-controllable air conditioner
    8.
    发明授权
    Capacity-controllable air conditioner 失效
    容量可控空调

    公开(公告)号:US4989414A

    公开(公告)日:1991-02-05

    申请号:US425229

    申请日:1989-10-23

    摘要: An air conditioner provided with a refrigerant circuit formed by connecting with piping a refrigerant compressor, a condenser, an expansion means and an evaporator, an inverter power supply means for controlling the rotational speed of an electric motor for driving the refrigerant compressor, a load detector, and a controller for controlling the inverter power supply means on the basis of an output from the load detector. A refrigerant flow passage controlling mechanism is provided to change the rate at which the refrigerant flows through the condenser on the basis of a control command from the controller, thereby making it possible to reduce or increase the discharge rate without extending the range of changes in the rotational speed of the compressor. The compressor can be controlled according to a wide range of changes in the load to operate with an operation range which ensures high efficiency of the compressor operation.

    摘要翻译: 一种设置有制冷剂回路的空气调节器,其通过制冷剂压缩机,冷凝器,膨胀装置和蒸发器与管道连接而形成,用于控制用于驱动制冷剂压缩机的电动机的转速的逆变器电源装置,负载检测器 以及控制器,用于根据来自负载检测器的输出来控制逆变器电源装置。 设置制冷剂流路控制机构,根据来自控制器的控制指令,使制冷剂流过冷凝器的速度变化,从而可以在不扩大排出量的范围的情况下降低或提高排出速度 压缩机的转速。 压缩机可以根据负载变化的大范围进行控制,以保证压缩机运行的高效率的运行范围。

    Air conditioner or refrigerating plant incorporating scroll compressor
    10.
    发明授权
    Air conditioner or refrigerating plant incorporating scroll compressor 失效
    装有涡旋压缩机的空调或冷藏设备

    公开(公告)号:US4774816A

    公开(公告)日:1988-10-04

    申请号:US124279

    申请日:1987-11-23

    摘要: An air conditioner includes a scroll-type refrigerant compressor driven at a speed variable in accordance with the thermal load on the air conditioner. The compressor has stationary and orbiting scroll members assembled together to define compression chambers in which a refrigerant gas is compressed and finally discharged into a discharger chamber through a discharge port formed in the center of the end plate of the stationary scroll member. At least one bypass port and an associated check valve are provided in and on the end plate of the stationary scroll member at such a position that the check valve opens to allow the gas to be directly discharged from an associated compression chamber into the discharge chamber when the compressor is operated under such a condition that the ratio of the operation pressure ratio to the design pressure ratio of the compressor falls within a range between 0.5 and 0.75.

    摘要翻译: 空调机包括以根据空调的热负荷的速度变化而驱动的涡旋式制冷剂压缩机。 压缩机具有组装在一起的固定和绕动涡旋件,以限定制冷剂气体被压缩的压缩室,并最终通过形成在固定涡旋件的端板中心的排放口排出到排放室中。 在止动阀打开的位置处,至少一个旁通口和相关的止回阀设置在固定涡旋构件的端板中和其上,从而允许气体从相关联的压缩室直接排出到排放室中, 在压缩机的操作压力比与压缩机的设计压力比的比率落在0.5和0.75之间的条件下运行。