Valved discharge mechanism in a refrigerant compressor
    1.
    发明授权
    Valved discharge mechanism in a refrigerant compressor 失效
    制冷剂压缩机中的排气机构

    公开(公告)号:US5380176A

    公开(公告)日:1995-01-10

    申请号:US124619

    申请日:1993-09-21

    CPC分类号: F04C29/128 Y10T137/7892

    摘要: A refrigerant compressor includes a compressor housing defining a chamber in which successive strokes of intake, compression, and discharge of a refrigerant gas are repeatedly performed. The chamber is divided into a compression chamber and a discharge chamber by a valve plate. A discharge hole links the compression chamber to the discharge chamber. The valve plate includes an end surface which faces the discharge chamber. A discharge valve regulates a flow of the refrigerant gas from the compression chamber to the discharge chamber. A valve retainer limits the bending movement of the discharge valve in the direction in which the refrigerant gas exits the discharge hole. The valve retainer is secured to an axial end surface of the valve plate together with the discharge valve by a fixing bolt. The discharge valve bends as it opens and closes the discharge hole. The valve plate includes an annular groove formed at the end surface thereof. The annular groove surrounds the discharge hole and is entirely overlaid by the discharge valve. Also, an air gap may be formed between the discharge valve and the valve plate. Thereby, noise due to resonant vibration caused by the discharge valve can be effectively reduced or eliminated.

    摘要翻译: 制冷剂压缩机包括限定腔室的压缩机壳体,其中反复进行制冷剂气体的进气,压缩和排出的连续冲程。 腔室通过阀板分为压缩室和排放室。 排出孔将压缩室连接到排出室。 阀板包括面向排出室的端面。 排出阀调节制冷剂气体从压缩室到排放室的流动。 阀保持器限制排出阀在制冷剂气体离开排出孔的方向上的弯曲运动。 阀保持器通过固定螺栓与排出阀一起固定在阀板的轴向端面上。 排气阀打开时关闭排气孔。 阀板包括在其端面形成的环形槽。 环形槽围绕排放孔,并且完全由排放阀覆盖。 此外,可以在排出阀和阀板之间形成气隙。 由此,可以有效地减少或消除由排出阀引起的共振振动引起的噪声。

    Scroll type compressor with variable displacement mechanism

    公开(公告)号:USRE34148E

    公开(公告)日:1992-12-22

    申请号:US522058

    申请日:1990-05-10

    CPC分类号: F04C28/16

    摘要: A variable displacement type compressor is disclosed. The compressor includes a housing having fluid inlet and fluid outlet ports. A fixed scroll is fixed within the housing and has a circular end plate from which a first spiral element extends. The end plate of the fixed scroll partitions the inner chamber of the compressor housing into a front chamber connected to the fluid inlet port and a rear chamber. The rear chamber is divided into a discharge chamber connected to the fluid outlet port and an intermediate pressure chamber. The end plate of the fixed scroll has at least two holes which connect the fluid pockets to the intermediate pressure chamber. The end plate also has a communicating channel which connects the front chamber to the intermediate chamber. A control device controls the communication between the front chamber and intermediate pressure chamber. The control device is disposed on the intermediate pressure chamber, and a valve element of the control means is operated by pressure from the discharge chamber.

    Scroll type compressor with variable displacement mechanism
    3.
    发明授权
    Scroll type compressor with variable displacement mechanism 失效
    具有可变排量机构的涡旋式压缩机

    公开(公告)号:US4744733A

    公开(公告)日:1988-05-17

    申请号:US875561

    申请日:1986-06-18

    CPC分类号: F04C28/16

    摘要: A variable displacement type compressor is disclosed. The compressor includes a housing having fluid inlet and fluid outlet ports. A fixed scroll is fixed within the housing and has a circular end plate from which a first spiral element extends. The end plate of the fixed scroll partitions the inner chamber of the compressor housing into a front chamber connected to the fluid inlet port and a rear chamber. The rear chamber is divided into a discharge chamber connected to the fluid outlet port and an intermediate pressure chamber. The end plate of the fixed scroll has at least two holes which connect the fluid pockets to the intermediate pressure chamber. The end plate also has a communicating channel which connects the front chamber to the intermediate chamber. A control device controls the communication between the front chamber and intermediate pressure chamber. The control device is disposed on the intermediate pressure chamber, and a valve element of the control means is operated by pressure from the discharge chamber.

    摘要翻译: 公开了一种可变排量型压缩机。 压缩机包括具有流体入口和流体出口的壳体。 固定的涡卷固定在壳体内并具有圆形端板,第一螺旋元件从该端板延伸。 固定涡旋盘的端板将压缩机壳体的内腔分隔成连接到流体入口和后室的前室。 后室分为与流体出口连接的排出室和中间压力室。 固定涡旋盘的端板具有至少两个将流体袋连接到中间压力室的孔。 端板还具有将前室连接到中间室的连通通道。 控制装置控制前室和中压室之间的连通。 控制装置设置在中压室上,控制装置的阀元件通过来自排出室的压力进行操作。

    Scroll type compressor with displacement adjusting mechanism
    4.
    发明授权
    Scroll type compressor with displacement adjusting mechanism 失效
    带位移调节机构的涡旋式压缩机

    公开(公告)号:US4505651A

    公开(公告)日:1985-03-19

    申请号:US521258

    申请日:1983-08-08

    CPC分类号: F04C28/16

    摘要: A scroll type compressor is disclosed. The compressor includes a housing having a fluid inlet port and an outlet port. A fixed scroll is fixed within the housing and has a circular end plate from which a first wrap extends. The end plate of the fixed scroll partitions the inner chamber of the housing into a front chamber connected to the fluid inlet port and a rear chamber. The rear chamber is divided into a central chamber connected to the fluid outlet port and an outer chamber. An orbiting scroll, which is disposed in the front chamber, also has a circular end plate from which a second wrap extends. Both wraps interfit at angular and radial offsets to form a plurality of line contacts to define at least one pair of sealed off fluid pockets. The end plate of the fixed scroll has at least two holes which are placed at symmetrical position and connect the fluid pockets to the outer chamber. The end plate also has a communicating hole which connects the first chamber and the outer chamber. Valve members are disposed in the outer chamber for opening and closing each hole. A control mechanism which is disposed in the outer chamber controls the operation of the valve members.

    摘要翻译: 公开了一种涡旋式压缩机。 压缩机包括具有流体入口和出口的壳体。 固定的涡卷固定在壳体内,并具有圆形端板,第一卷绕物从该端板延伸。 固定涡旋盘的端板将壳体的内腔分隔成连接到流体入口和后室的前室。 后室被分成连接到流体出口和中心腔室的中心室。 设置在前室中的绕动涡卷机还具有圆形端板,第二卷绕件从该端板延伸。 两个包裹在角度和径向偏移处相互配合以形成多个线接触件以限定至少一对密封的流体袋。 固定涡旋盘的端板具有至少两个孔,这些孔被放置在对称位置并将流体袋连接到外室。 端板还具有连接第一室和外室的连通孔。 阀构件设置在外室中,用于打开和关闭每个孔。 设置在外部室中的控制机构控制阀构件的操作。

    Scroll type compressor with variable displacement mechanism
    5.
    发明授权
    Scroll type compressor with variable displacement mechanism 失效
    具有可变排量机构的涡旋式压缩机

    公开(公告)号:US4904164A

    公开(公告)日:1990-02-27

    申请号:US213337

    申请日:1988-06-30

    CPC分类号: F04C28/16

    摘要: A variable displacement type compressor is disclosed. The compressor includes a housing having fluid inlet and fluid outlet ports. A fixed scroll is disposed within the housing and has a circular end plate from which a first spiral element extends. The end plate of the fixed scroll partitions the inner chamber of the compressor housing into a front chamber connected to the fluid inlet port and a rear chamber. The rear chamber is divided into a discharge chamber connected to the fluid outlet port and an intermediate pressure chamber. The end plate of the fixed scroll has at least two holes which connect the fluid pockets to the intermediate pressure chamber. The end plate also has a communicating channel which connects the front chamber to the intermediate chamber. A control device controls the communication between the front chamber and intermediate pressure chamber. The control device is disposed on the intermediate pressure chamber and comprises first and second valve elements. The first valve element of the control device is operated by pressure from the discharge chamber. Pressure from the discharge chamber is controlled by the second valve element. The first valve element includes a cylinder and a piston slidably disposed within the cylinder. The cylinder has first and second openings. The first opening is formed at the intermediate pressure chamber side. The second opening is formed at the communicating channel side. A bottom end of the piston closes the second opening, when a top end of the piston receives discharge gas pressure.

    摘要翻译: 可变排量型压缩机包括具有流体入口和流体出口(31,32)的壳体(12)。 固定涡卷(21)设置在壳体内并具有圆形端板(211),第一螺旋元件(212)从该端板延伸。 固定涡旋盘的端板将压缩机壳体的内腔分隔成与流体入口(31)连接的前室(27),后室被分为连接到流体出口 端口(32)和中间压力室(282)。 固定涡旋盘的端板具有至少两个将流体袋连接到中间压力室的孔(214)。 端板(211)还具有将前室(27)连接到中间室(282)的连通通道(29)。 控制装置(36)控制前室和中压室之间的连通。 控制装置设置在中间压力室上并且包括第一和第二阀元件(37,38)。 控制装置的第一阀元件(37)由来自排放室(281)的压力操作。 来自排出室的压力由第二阀元件(38)控制。 第一阀元件(37)包括可滑动地设置在气缸内的气缸(371)和活塞(372)。 气缸具有第一和第二开口(373,374)。 第一开口(373)形成在中压室一侧。 第二开口(374)形成在连通通道侧。 当活塞的顶端接受排出气体压力时,活塞的底端封闭第二开口(374)。

    Scroll compressor with control device for variable displacement mechanism
    6.
    发明授权
    Scroll compressor with control device for variable displacement mechanism 失效
    涡旋压缩机带有可变排量机构的控制装置

    公开(公告)号:US4747756A

    公开(公告)日:1988-05-31

    申请号:US102847

    申请日:1987-09-30

    摘要: A scroll type compressor with a variable displacement mechanism is disclosed. The compressor includes a housing having fluid inlet and outlet ports. A fixed scroll is fixed within the housing and has a circular end plate from which a first spiral element extends. The end plate of fixed scroll partitions the inner chamber of housing into a front chamber, which includes a suction chamber connected to the fluid inlet port, and a rear chamber. The rear chamber is divided into a discharge chamber connected to the fluid outlet port and an intermediate pressure chamber. The end plate of the fixed scroll has at least two holes which connect the fluid pockets to the intermediate pressure chamber. A control device controls communication between the suction chamber and the intermediate pressure chamber and includes communicating mechanism. The communicating mechanism leaks compressed fluid in the cylinder at an increased rate into the suction chamber after the cylinder has moved upward a predetermined distance in order to effect stable operation of the displacement varying mechanism.

    Scroll compressor with control device for variable displacement mechanism

    公开(公告)号:US4717314A

    公开(公告)日:1988-01-05

    申请号:US895494

    申请日:1986-08-11

    IPC分类号: F04C18/02 F04C28/16 F16K31/40

    摘要: A scroll type compressor with a variable displacement mechanism is disclosed. The compressor includes a housing having fluid inlet and outlet ports. A fixed scroll is fixed within the housing and has a circular end plate from which a first spiral element extends. The end plate of fixed scroll partitions the inner chamber of housing into a front chamber, which includes a suction chamber connected to the fluid inlet port, and a rear chamber. The rear chamber is divided into a discharge chamber connected to the fluid outlet port and an intermediate pressure chamber. The end plate of the fixed scroll has at least two holes which connect the fluid pockets to the intermediate pressure chamber. A control device controls communication between the suction chamber and the intermediate pressure chamber and includes communicating mechanism. The communicating mechanism leaks compressed fluid in the cylinder at an increased rate into the suction chamber after the cylinder has moved upward a predetermined distance in order to effect stable operation of the displacement varying mechanism.

    Scroll type compressor with seal supporting anti-wear plate portions
    8.
    发明授权
    Scroll type compressor with seal supporting anti-wear plate portions 失效
    涡旋式压缩机带有密封支撑防磨板部分

    公开(公告)号:US4890987A

    公开(公告)日:1990-01-02

    申请号:US170300

    申请日:1988-03-18

    IPC分类号: F04C28/26 F04C18/02 F04C28/16

    摘要: A scroll type compressor is disclosed which includes a housing with an inner chamber and fluid inlet and outlet ports connected to the inner chamber. A fixed scroll, which is mounted within the housing, has an end plate from which a first spiral wrap extends. An orbiting scroll also is mounted within the housing for orbital motion with respect to the fixed scroll. The orbiting scroll has an end plate from which a second spiral wrap extends; and the first and second wraps interfit to define at least one pair of sealed off fluid pockets. The end plate of the fixed scroll partitions the inner chamber of the housing into a suction chamber and rear chamber. The end plate of the fixed scroll has at least one pair of holes for adjusting the displacement of the compressor. A control mechanism selectively controls fluid communication through the holes. The axial end surface of the second wrap is provided with a seal element which forms an axial seal between the second wrap and the end plate of the fixed scroll. An anti-wear plate is disposed on the end surface of the fixed end plate to prevent from friction between the seal element and end surface of the end plate. The anti-wear plate has cut-out portions facing the holes. Each cut-out portion has a predetermined shape and area to prevent cutting of the seal element and to minimize pressure loss.

    Valved discharge mechanism of a fluid displacement apparatus
    9.
    发明授权
    Valved discharge mechanism of a fluid displacement apparatus 失效
    排液装置的排气机构

    公开(公告)号:US5647395A

    公开(公告)日:1997-07-15

    申请号:US584362

    申请日:1996-01-11

    摘要: A discharge valve assembly for use in a fluid displacement apparatus has a suction chamber and a discharge chamber on one side of a valve plate, a compression chamber on the other side of the valve plate and a passage formed in the valve plate extending between the compression chamber and the discharge chamber. The discharge valve assembly comprises a valve limiting device secured to the valve plate for limiting the bending movement of a valve member. The valve member is bent away from the valve plate when all external pressure influences are removed. Noise and vibration caused by the striking of the valve member against the valve seat and the retainer member are thereby decreased.

    摘要翻译: 用于流体置换装置的排出阀组件在阀板的一侧具有吸入室和排出室,在阀板的另一侧具有压缩室,并且在阀板之间形成有在压缩之间延伸的通道 室和放电室。 排放阀组件包括固定到阀板的限流装置,用于限制阀构件的弯曲运动。 当所有外部压力影响被去除时,阀构件被从阀板弯曲。 因此,阀构件相对于阀座和保持构件的撞击引起的噪音和振动减小。

    Lubricating mechanism for scroll-type fluid displacement apparatus
    10.
    发明授权
    Lubricating mechanism for scroll-type fluid displacement apparatus 失效
    滚动式流体置换装置的润滑机构

    公开(公告)号:US4547138A

    公开(公告)日:1985-10-15

    申请号:US589755

    申请日:1984-03-15

    IPC分类号: F01C21/04 F01C1/04

    CPC分类号: F01C21/04

    摘要: A lubricating mechanism for a scroll-type fluid displacement apparatus is disclosed. A driving mechanism for an orbiting scroll comprises a drive shaft and a drive pin projecting at an eccentric location from an inner end surface of the drive shaft. An annular boss projecting from a circular end plate of the orbiting scroll receives the drive pin. Therefore, the orbiting scroll is rotatably supported on the drive pin. The lubricating mechanism includes an oil passageway formed in the circular end plate of the orbiting scroll to communicate between the interior of the boss and one of the fluid packets located at the outer peripheral portion of the spiral elements. Lubricating oil thus flows into the interior of the boss and lubricates the bearing and other contact surface disposed in the center portion of the apparatus.

    摘要翻译: 公开了一种用于涡旋式流体置换装置的润滑机构。 用于绕动涡卷的驱动机构包括驱动轴和在离驱动轴的内端表面偏心的位置处突出的驱动销。 从旋转涡卷的圆形端板突出的环形凸台接收驱动销。 因此,绕动涡旋件被可旋转地支撑在驱动销上。 润滑机构包括形成在绕动涡盘的圆形端板中的油通道,以在凸起的内部和位于螺旋元件的外周部分的流体分组之一之间连通。 因此,润滑油流入凸台的内部并润滑设置在设备中心部分的轴承和其它接触表面。