Double-headed piston type compressor
    41.
    发明授权
    Double-headed piston type compressor 失效
    双头活塞式压缩机

    公开(公告)号:US06077049A

    公开(公告)日:2000-06-20

    申请号:US936930

    申请日:1997-09-25

    IPC分类号: F04B27/08 F04B27/10 F04B39/00

    摘要: A compressor has an odd number of aligned pairs of cylinder bores. A double-headed piston is accommodated in each aligned pair of bores. The time at which gas is discharged from each cylinder bore is different from that of all of the other cylinder bores. The compressor has a pair of reducing devices, one reducing the pulsation amplitude of the gas discharged from the front cylinder bores and the other reducing the pulsation amplitude of the gas discharged from the rear cylinder bores. The reducing devices reduce the gas pulsation amplitudes of the front and rear cylinder bores at a substantially equal rate. Each reducing device includes a discharge chamber for receiving the gas discharged from the associated cylinder bores and a discharge passage connected to the discharge chamber. The discharge chambers of the reducing devices have equal volumes, and the discharge passages of the reducing devices have equal lengths and equal cross-sectional areas. This structure improves the vibration characteristics of the compressor and thus reduces noise.

    摘要翻译: 压缩机具有奇数个对齐的气缸孔对。 双头活塞容纳在每对对准的孔中。 气体从每个气缸孔排出的时间与所有其它气缸孔的时间不同。 压缩机具有一对还原装置,一个减少从前缸孔排出的气体的脉动幅度,另一个减小从后缸孔排出的气体的脉动幅度。 减速装置以基本上相等的速率降低前气缸孔和后气缸孔的气体脉动幅度。 每个还原装置包括用于接收从相关联的气缸孔排出的气体的排放室和连接到排出室的排放通道。 还原装置的放电室具有相等的体积,并且还原装置的排出通道具有相同的长度和相等的横截面面积。 该结构改善了压缩机的振动特性,从而降低了噪音。

    Housing construction for reciprocating piston type compressor
    42.
    发明授权
    Housing construction for reciprocating piston type compressor 失效
    往复式活塞式压缩机的外壳结构

    公开(公告)号:US6030184A

    公开(公告)日:2000-02-29

    申请号:US617398

    申请日:1996-03-18

    CPC分类号: F04B27/1081 F04B39/122

    摘要: A compressor is described having a pair of casings fastened together by a plurality of bolts. A piston is located for reciprocation within a cylinder bore formed in the casings. A cam plate is mounted on a rotary shaft supported by the casings to reciprocate the piston. The cam plate is held by the casings between a pair of thrust bearings. The casings include adjoining surfaces fitted to each other and a member sandwiched between the adjoining surfaces of the casings for absorbing dimensional tolerances of the casings, cam plate and thrust bearings according to the deformation of the member.

    摘要翻译: 描述了一种压缩机,其具有通过多个螺栓紧固在一起的一对壳体。 活塞位于在壳体内形成的气缸孔内往复运动。 凸轮板安装在由壳体支撑的旋转轴上以使活塞往复运动。 凸轮板由一对推力轴承之间的壳体保持。 壳体包括彼此相配合的邻接表面以及夹在壳体的邻接表面之间的构件,用于根据构件的变形吸收壳体,凸轮板和止推轴承的尺寸公差。

    Piston-type compressor with improved shock absorption during start up
    43.
    发明授权
    Piston-type compressor with improved shock absorption during start up 失效
    活塞式压缩机在起动时具有改善的减震能力

    公开(公告)号:US5944491A

    公开(公告)日:1999-08-31

    申请号:US797594

    申请日:1997-02-07

    CPC分类号: F04B49/246 F04B2205/03

    摘要: An improved compressor that is designed to minimize shock and vibration during start-up includes a plurality of pistons, each of which is positioned for movement within a cylinder in order to compress a gas, and conventional motive structure for driving the pistons. Advantageously, the compressor includes a sensor for sensing, from a condition that exists within the compressor, when the compressor is in a start-up phase. The sensor is designed to be operative regardless of the position of the pistons during start-up. Pressure relief structure, responsive to said sensor, is provided for relieving pressure in at least one of the cylinders when the sensor indicates that the compressor is in the start-up phase. This minimizes shock and vibration during the start-up.

    摘要翻译: 设计成使启动期间的冲击和振动最小化的改进的压缩机包括多个活塞,每个活塞定位成在气缸内移动以便压缩气体,以及用于驱动活塞的常规动力结构。 有利地,压缩机包括用于当压缩机处于启动阶段时从存在于压缩机内的状态感测的传感器。 传感器设计为无论活塞在启动过程中的位置如何,均可运行。 当传感器指示压缩机处于起动阶段时,提供响应于所述传感器的减压结构,用于在至少一个气缸中减轻压力。 这样可以最大限度地减少启动过程中的冲击和振动。

    Swash-plate type compressor with an abrasion resistant projecting
portion on the cylinder block
    44.
    发明授权
    Swash-plate type compressor with an abrasion resistant projecting portion on the cylinder block 失效
    在气缸体上具有耐磨突出部分的斜盘式压缩机

    公开(公告)号:US5845560A

    公开(公告)日:1998-12-08

    申请号:US926667

    申请日:1997-09-09

    摘要: It is an object of the present invention to reduce the abrasion at a pressure receiving portion of the cylinder block, without increasing the manufacturing cost, even when the outer rings of a bearing are jointly rotated and eccentrically fluctuated. The cylinder blocks are made of aluminum alloy comprising, by weight, 1.5 to 3.5% of Cu, 13 to 16% of Si, 0.5% or less of Mg, 1.0% or less of Zn, 1.0% or less of Fe and the remainder of Al. The matrix, except for primary Si crystal, is relatively soft. Primary Si crystals which each independently project from the pressure receiving portions tend to be pushed into the base material by the outer rings of the thrust bearings, so that the levels of primary Si crystals are easily made to be approximately uniform. As a result, the interference and thrust load from the outer rings can be appropriately supported by a large number of primary Si crystals, and a jointly rotating motion and an eccentric fluctuation can be appropriately supported by a large number of primary Si crystals under severe operating conditions.

    摘要翻译: 本发明的目的在于,即使在轴承的外圈共同旋转且偏心地变动的情况下,也不会增加制造成本,可以减小气缸体的受压部的磨损。 气缸体由铝合金制成,包括重量比为Cu的1.5-3.5%,Si为13-16%,Mg为0.5%以下,Zn为1.0%以下,Fe为1.0%以下,余量为 的Al 除了初级Si晶体之外,基体相对较软。 各自独立地从压力接收部突出的初级Si晶体倾向于通过推力轴承的外圈推入基材中,使得初级Si晶体的水平容易大致均匀。 结果,来自外圈的干涉和推力负荷可以被大量的初级Si晶体适当地支撑,并且在严格的操作下可以通过大量的初级Si晶体适当地支持联合旋转运动和偏心波动 条件。

    Reciprocating piston compressor
    45.
    发明授权
    Reciprocating piston compressor 失效
    往复式活塞式压缩机

    公开(公告)号:US5802954A

    公开(公告)日:1998-09-08

    申请号:US617292

    申请日:1996-03-18

    CPC分类号: F04B27/1063

    摘要: A reciprocating piston type compressor for compressing refrigerant gas is provided with a main housing which includes a plurality of parallel cylinder bores arranged around the longitudinal axis of the cylinder block. The main housing has first and second cylinder blocks connected to each other by a plurality of bolts, the cylinder blocks including inner clamping faces and abutting faces. A plurality of pistons are slidably provided within the cylinder bores. An axially extending drive shaft is supported by the main housing for rotation through a pair of bearings. A swash plate is mounted on the drive shaft for rotation with the drive shaft. A pair of thrust bearings are provided between the swash plate and the inner clamping faces of the cylinder blocks to clamp and hold the swash plate therebetween. The clamping force on the thrust bearings from the inner clamping faces is controlled so that the clamping force does not exceed a predetermined allowable upper limit when the compressor is assembled.

    摘要翻译: 一种用于压缩制冷剂气体的往复活塞式压缩机设置有主壳体,该主壳体包括围绕气缸体的纵向轴线布置的多个平行的气缸孔。 主壳体具有通过多个螺栓彼此连接的第一和第二气缸体,气缸体包括内夹紧面和邻接面。 多个活塞可滑动地设置在气缸孔内。 轴向延伸的驱动轴由主壳体支撑以通过一对轴承旋转。 旋转斜盘安装在驱动轴上以与驱动轴一起旋转。 一对推力轴承设置在旋转斜盘和气缸体的内夹紧面之间,以夹紧和保持其间的斜盘。 控制来自内夹紧面的推力轴承上的夹紧力,使得当组装压缩机时夹紧力不超过预定的允许上限。

    Piston type compressor with structure for reducing cylinder bore
deformation
    46.
    发明授权
    Piston type compressor with structure for reducing cylinder bore deformation 失效
    活塞式压缩机具有减少缸径变形的结构

    公开(公告)号:US5782613A

    公开(公告)日:1998-07-21

    申请号:US614370

    申请日:1996-03-12

    CPC分类号: F04B27/1081

    摘要: A compressor includes a housing body and a drive shaft rotatably supported in the housing body. A swash plate is mounted on the swash shaft. Cylinder bores are defined in the housing body. Pistons are operably coupled to the swash plate and are disposed in the cylinder bores. The swash plate converts a rotation of the swash shaft to a reciprocating movement of the pistons along an inner surface of the cylinder bores. Each piston compresses gas supplied from a suction chamber to the associated cylinder bore and discharges the compressed gas to a discharge chamber. Deformation of the inner surface of each cylinder bore is reduced by utilizing pressure of the gas compressed in the cylinder bore.

    摘要翻译: 压缩机包括壳体和可旋转地支撑在壳体中的驱动轴。 旋转斜盘安装在斜盘上。 气缸孔限定在壳体内。 活塞可操作地联接到斜盘并且设置在气缸孔中。 斜盘将旋转斜盘的旋转转换成活塞沿着气缸孔的内表面的往复运动。 每个活塞将从抽吸室供应的气体压缩到相关联的气缸孔,并将压缩气体排放到排放室。 通过利用在气缸孔中压缩的气体的压力来减小每个气缸孔的内表面的变形。

    Reciprocating piston type compressor with an improved discharge valve
mechanism
    47.
    发明授权
    Reciprocating piston type compressor with an improved discharge valve mechanism 失效
    具有改进排气阀机构的往复式活塞式压缩机

    公开(公告)号:US5607287A

    公开(公告)日:1997-03-04

    申请号:US570541

    申请日:1995-12-11

    IPC分类号: F04B27/10 F04B39/10 F04B1/16

    CPC分类号: F04B39/1073 F04B27/1009

    摘要: A reciprocating piston type compressor having a cylinder block, a plurality of cylinder bores, and at least a housing closing an end of the cylinder block. The housing contains a suction chamber for a refrigerant gas to be compressed and a discharge chamber for the compressed refrigerant gas discharged from the cylinder bores in response to reciprocation of a plurality of pistons. The compressed gas is discharged through discharge ports closed by a discharge valve element having a plurality of integral discharge reed-valves movable between a closed positions and a predetermined open positions. The open position is defined by a stop unit integrally formed in an inner wall of the housing. The stop unit has a plurality of flat stop faces formed on the inner wall to permit free ends of the discharge reed-valves to come into contact engagement therewith, when the discharge reed-valves are moved from the closed positions to the open positions.

    摘要翻译: 一种往复式活塞式压缩机,具有气缸体,多个气缸孔,以及至少一个闭合汽缸体的端部的壳体。 壳体包括用于待压缩的制冷剂气体的吸入室和用于响应于多个活塞的往复运动而从气缸孔排出的压缩的制冷剂气体的排出室。 压缩气体通过具有可在闭合位置和预定打开位置之间移动的多个整体放电簧片的排出阀元件关闭的排出口排出。 打开位置由一体地形成在壳体的内壁中的止动单元限定。 停止单元具有形成在内壁上的多个平坦的止动面,以便当排出簧片从关闭位置移动到打开位置时,排出簧片的自由端与其接触接合。

    Reciprocating type compressor with oil separating device
    48.
    发明授权
    Reciprocating type compressor with oil separating device 失效
    具有油分离装置的往复式压缩机

    公开(公告)号:US5580224A

    公开(公告)日:1996-12-03

    申请号:US457225

    申请日:1995-06-01

    摘要: A reciprocating compressor includes reciprocating pistons moved by a swash plate. A housing member is attached to one end of the cylinder block via a valve plate. A discharge chamber is formed in the peripheral region in the housing member, and a suction chamber and an oil chamber are formed in the central region in the housing member in an axially juxtaposed relationship. Alternatively, a suction chamber is formed in the peripheral region, and a discharge chamber and an oil chamber are formed in the central region. The oil chamber is connected to the suction chamber by an oil return passage. A centrifugal type or collision type oil separating device is arranged in the discharge chamber above the oil chamber in the housing member.

    摘要翻译: 往复式压缩机包括由斜盘运动的往复活塞。 外壳构件通过阀板附接到气缸体的一端。 在壳体构件的周边区域形成有排出室,并且在壳体构件的中心区域以轴向并列的关系形成吸入室和油室。 或者,在周边区域形成吸入室,在中央区域形成有排出室和油室。 油室通过回油通道连接到吸入室。 离心式或碰撞型油分离装置设置在壳体中的油室上方的排出室中。

    Swash plate type compressor
    50.
    发明授权
    Swash plate type compressor 失效
    斜盘式压缩机

    公开(公告)号:US5181834A

    公开(公告)日:1993-01-26

    申请号:US917451

    申请日:1992-07-21

    IPC分类号: F04B27/12 F04B39/04

    CPC分类号: F04B39/04 F04B27/12

    摘要: A swash plate type compressor is provided with a front and rear cylinder blocks having a crank case connected to a suction port. The cylinder blocks include a plurality of cylinders, and are connected to a front and rear housing sections for covering the cylinders. Each housing section contains a discharge chamber. A drive shaft is rotatabley supported by the cylinder blocks. A swash plate is mounted on the drive shaft and is rotatably disposed within the crank case. Two-head pistons move within their respective cylinders in cooperation with the swash plate. The refrigerant is drawn into, and compressed in each cylinder. Thereafter, it is discharged into the external refrigerating circuit through the front and rear discharge chambers, and a final discharge port. A discharge passage includes a hollow primary passage which is provided within the drive shaft. The primary passage communicates with the front and rear discharge chambers. A groove is provided on an inner wall of the primary passage. As the drive shaft rotates, the groove separates the refrigerant from the lubricating oil mixed with the refrigerant. An oil passage is provided between the discharge chamber and the crank case. The separated oil flows from the discharge chamber to the crank case, through the oil passage, and is used again in lubricating the components of the compressor.

    摘要翻译: 旋转斜盘式压缩机设置有具有与吸入口连接的曲轴箱的前后缸体。 气缸体包括多个气缸,并且连接到用于覆盖气缸的前后壳体部分。 每个外壳部分都包含一个放电室。 驱动轴由气缸体可旋转地支撑。 旋转斜盘安装在驱动轴上并可旋转地设置在曲轴箱内。 双头活塞与斜盘配合在其各自的气缸内移动。 制冷剂被吸入并压缩在每个气缸中。 此后,通过前后排出室和最终排出口将其排出到外部制冷回路中。 排出通道包括设置在驱动轴内的中空主通道。 主通道与前排气室和后排气室连通。 在主通道的内壁上设置有槽。 当驱动轴旋转时,槽与从制冷剂混合的润滑油分离制冷剂。 在排气室和曲轴箱之间设有油路。 分离的油通过油路从排出室流到曲轴箱,并再次用于润滑压缩机的部件。