Piston type variable displacement compressor
    1.
    发明授权
    Piston type variable displacement compressor 失效
    活塞式可变排量压缩机

    公开(公告)号:US6142745A

    公开(公告)日:2000-11-07

    申请号:US918507

    申请日:1997-08-22

    IPC分类号: F04B27/18 F04B49/22 F04B1/26

    摘要: A compressor has a refrigerant gas circulation passage selectively connected to and disconnected from an external refrigerant circuit. The compressor has a swash plate supported on a drive shaft for integral rotation with inclining motion with respect to the drive shaft which swash plate is coupled in driving relationship to a plurality of pistons which move reciprocatably within cylinder bores for compressing the gas. The swash plate is movable between a maximum inclined angle and a minimum inclined angle. A disconnecting valve disconnects the discharge chamber in the circulation passage from the external refrigerant circuit when the swash plate is at the minimum inclined angle. A bleed hole bleeds the refrigerant gas from the refrigerant circulation passage to the external refrigerant circuit to suppress rapid increase of the inclined angle when the disconnecting valve operates.

    摘要翻译: 压缩机具有选择性地连接到外部制冷剂回路并与外部制冷剂回路断开的制冷剂气体循环通道。 压缩机具有支撑在驱动轴上的旋转斜盘,用于一体旋转,相对于驱动轴倾斜运动,斜盘与驱动关系联接,多个活塞可在气缸孔内往复运动以压缩气体。 斜盘可以在最大倾斜角和最小倾斜角之间移动。 当斜盘处于最小倾斜角时,断开阀将循环通道中的排出室与外部制冷剂回路断开。 泄放孔将制冷剂气体从制冷剂循环通路排出到外部制冷剂回路,以抑制切断阀动作时的倾斜角的急剧增加。

    Displacement controlling structure for clutchless variable displacement
compressor
    2.
    发明授权
    Displacement controlling structure for clutchless variable displacement compressor 失效
    无离合器可变排量压缩机的位移控制结构

    公开(公告)号:US5865604A

    公开(公告)日:1999-02-02

    申请号:US661521

    申请日:1996-06-11

    摘要: A variable displacement compressor which has a suction chamber, a discharge chamber, and a crank chamber. The displacement of the compressor is controlled by supplying refrigerant to the crank chamber from the discharge chamber via a pressurizing passage and releasing the gas into the suction chamber via a pressure releasing passage. An increase in the pressure in the crank chamber decreases the displacement, and a decrease in the pressure in the crank chamber increases the displacement. A displacement controlling structure of the compressor includes an electromagnetic valve which alters the size of an area of the pressurizing passage. A computer controls the electromagnetic valve in accordance with commands to alter the displacement. The computer enlarges the opened area of the pressurizing passage by controlling the electromagnetic valve in response to commands to reduce the displacement.

    摘要翻译: 一种具有吸入室,排放室和曲柄室的可变排量压缩机。 通过经由加压通道从排出室向曲柄室供给制冷剂并通过压力释放通道将气体释放到吸入室来控制压缩机的排量。 曲柄室中的压力的​​增加减小了位移,并且曲柄室中的压力的​​减小增加了位移。 压缩机的排量控制结构包括电磁阀,其改变加压通道的面积的尺寸。 计算机根据命令控制电磁阀来改变位移。 计算机通过响应于减小位移的命令控制电磁阀来扩大加压通道的打开区域。

    Variable displacement compressor having a spool with a coating layer
    3.
    发明授权
    Variable displacement compressor having a spool with a coating layer 失效
    可变排量压缩机具有带有涂层的卷轴

    公开(公告)号:US5741122A

    公开(公告)日:1998-04-21

    申请号:US625360

    申请日:1996-04-01

    摘要: A compressor has a housing body, a drive shaft, a swash plate, and a piston. The swash plate converts rotation of the drive shaft to reciprocating movement of the piston in a cylinder bore. The piston compresses gas supplied to the cylinder bore from an external circuit via a suction chamber and discharges the compressed gas to a discharge chamber. The swash plate is tiltable with respect to a plane perpendicular to the longitudinal axis of the drive shaft according to differential pressure between the crank chamber and the suction chamber. The swash plate controls the displacement of the compressor based on the inclination thereof. A spool is movable longitudinally between a first position and a second position in response to the inclination of the swash plate. The spool connects the external circuit with the suction chamber in the first position and disconnects the external circuit from the suction chamber in the second position. The housing body has a surface slidably engaged by the spool. A coating layer is provided on at least one of the spool and the slide surface to reduce frictional resistance occurring due to the sliding movement of the spool on the slide surface. A second coating layer is provided on an end surface of the spool to lubricate and thereby reduce frictional resistance with the housing surface along the periphery of the suction passage leading into the shutter chamber occurring due to rotation of the spool, and also to improve the seal between the end surface of the spool and the housing when in the second position closing off the suction passage.

    摘要翻译: 压缩机具有壳体,驱动轴,斜板和活塞。 斜盘将驱动轴的旋转转换为活塞在气缸孔中的往复运动。 活塞通过吸入室从外部回路压缩供给气缸孔的气体,并将压缩气体排出到排出室。 根据曲柄室和抽吸室之间的压差,旋转斜盘相对于垂直于驱动轴的纵向轴线的平面倾斜。 旋转斜盘基于其倾斜度来控制压缩机的位移。 一个线轴响应于斜盘的倾斜在第一位置和第二位置之间纵向移动。 阀芯将外部电路与吸入室连接在第一位置,并在第二位置将外部电路与吸入室断开。 壳体具有可滑动地与线轴接合的表面。 在所述线轴和所述滑动面中的至少一个上设置有涂层,以减少由于所述线轴在所述滑动面上的滑动而产生的摩擦阻力。 第二涂层设置在阀芯的端面上以润滑,从而降低由于阀芯旋转而导致进入闸门室的吸入通道周围的壳体表面的摩擦阻力,并且还改善了密封 当处于关闭抽吸通道的第二位置时,在卷轴的端面与壳体之间。

    Clutchless piston type variable displacement compressor
    4.
    发明授权
    Clutchless piston type variable displacement compressor 失效
    离合式活塞式可变排量压缩机

    公开(公告)号:US5603610A

    公开(公告)日:1997-02-18

    申请号:US361111

    申请日:1994-12-21

    IPC分类号: F04B27/18 F04B49/22 F04B1/29

    摘要: A compressor having an internal refrigerant gas passage selectively connected to and disconnected from an external refrigerant circuit separately provided from the compressor is described. The compressor has a plurality of pistons reciprocable in a plurality of cylinder bores in a housing for compressing gas supplied from the external refrigerant circuit to the internal refrigerant gas passage. A drive shaft is rotatably supported by the housing. A swash plate is supported on the drive shaft for integral rotation with inclining motion with respect to the drive shaft. The swash plate is movable between a maximum inclined angle and a minimum inclined angle. The disconnecting device disconnects the internal refrigerant gas passage from the external refrigerant circuit when the swash plate is at the minimum inclined angle. The internal refrigerant gas passage includes a first passage which connects a crank chamber and a suction chamber to deliver the refrigerant gas from the crank chamber to the suction chamber. A control valve detects the pressure in the first passage to control the inclined angle of the swash plate.

    摘要翻译: 描述了具有选择性地连接到从压缩机分开设置的外部制冷剂回路和与其分离的内部制冷剂气体通道的压缩机。 压缩机具有多个可在壳体中的多个气缸孔中往复运动的活塞,用于将从外部制冷剂回路供给的气体压缩至内部制冷剂气体通道。 驱动轴由壳体可旋转地支撑。 旋转斜盘支撑在驱动轴上,用于相对于驱动轴倾斜运动而一体旋转。 斜盘可以在最大倾斜角和最小倾斜角之间移动。 当斜盘处于最小倾斜角时,断开装置将内部制冷剂气体通道与外部制冷剂回路断开。 内部制冷剂气体通道包括连接曲柄室和吸入室以将制冷剂气体从曲柄室输送到吸入室的第一通道。 控制阀检测第一通道中的压力以控制斜盘的倾斜角度。

    Sealing structure for compressors
    5.
    发明授权
    Sealing structure for compressors 失效
    压缩机密封结构

    公开(公告)号:US6123514A

    公开(公告)日:2000-09-26

    申请号:US43081

    申请日:1998-03-06

    IPC分类号: F04B27/10 F16J15/32 F04B1/26

    摘要: A sealing structure for the shaft of a compressor. The sealing apparatus includes an inner ring, and outer ring, and a support ring. The inner ring and the outer rings have flexible annular lips that contact the surface of the rotary shaft. The support ring supports the inner lip and determines the position of the inner lip. The first lip permits fluid leakage along the surface of the shaft, while the second lip forms a fluid-tight seal with the shaft. The support ring prevents the internal pressure of the compressor from pressing the first lip against the shaft with excessive force, which extends the life of the sealing apparatus.

    摘要翻译: PCT No.PCT / JP97 / 02465 Sec。 371日期:1998年5月26日 102(e)日期1998年5月26日PCT提交1997年7月16日PCT公布。 公开号WO98 / 02681 日期1998年1月22日压缩机轴的密封结构。 密封装置包括内圈,外圈和支撑环。 内环和外圈具有接触旋转轴表面的柔性环形唇缘。 支撑环支撑内唇并确定内唇的位置。 第一个唇缘允许沿着轴的表面流体泄漏,而第二个唇形成与轴的流体密封。 支撑环防止压缩机的内部压力以过大的力将第一唇缘压靠在轴上,延长了密封装置的使用寿命。

    Piston type variable displacement compressor
    7.
    发明授权
    Piston type variable displacement compressor 失效
    活塞式可变排量压缩机

    公开(公告)号:US5624240A

    公开(公告)日:1997-04-29

    申请号:US266130

    申请日:1994-06-27

    IPC分类号: B60H1/32 F04B27/18 F04B1/29

    CPC分类号: F04B27/1804 B60H1/3222

    摘要: Disclosed is a compressor having a drive shaft in a crank chamber and a swash plate supported on the drive shaft for integral rotation therewith to drive a piston in a cylinder bore. The piston compresses gas sucked from a suction chamber into the cylinder bore and discharges the compressed gas to a discharge chamber and the amount of the discharged gas is variable between a minimum and maximum values based on variation of the inclined angle of the swash plate between a minimum and maximum values. The compressor comprises a passage for leading the gas into the crank chamber from the discharge chamber to alter the inclined angle of the swash plate, a valve for selectively opening and closing the passage to lead the gas into the crank chamber via the passage when the valve opens the passage, and a control apparatus for controlling the inclined angle of the swash plate, which operates in accordance with the operation of the valve to hold the swash plate at the minimum inclined angle when the valve means opens the passage.

    摘要翻译: 公开了一种压缩机,其具有曲柄室中的驱动轴和支撑在驱动轴上以与其一体旋转的斜盘,以驱动气缸孔中的活塞。 活塞将从吸入室吸入的气体压缩到气缸孔中,并将压缩气体排出到排放室,并且排出气体的量根据斜盘的倾斜角度的变化在最小值和最大值之间变化 最小值和最大值。 压缩机包括用于将气体从排出室引导到曲柄室中以改变斜盘的倾斜角度的通道,用于选择性地打开和关闭通道的阀,以便当阀门经由通道经由通道将气体引导到曲柄室中 打开通道,以及用于控制斜盘的倾斜角度的控制装置,其在阀装置打开通道时根据阀的操作操作以将斜盘保持在最小倾斜角度。

    Piston type variable displacement compressor
    8.
    发明授权
    Piston type variable displacement compressor 失效
    活塞式可变排量压缩机

    公开(公告)号:US5577894A

    公开(公告)日:1996-11-26

    申请号:US334814

    申请日:1994-11-04

    IPC分类号: F04B27/18 F04B49/22 F04B1/29

    摘要: A compressor has a refrigerant gas passage selectively connected to and disconnected from a refrigerant circuit separately provided from the compressor. The compressor has a plurality of pistons reciprocable in a housing for compressing refrigerant gas. A drive shaft is rotatably supported by the housing. A swash plate is supported on the drive shaft for integral rotation with inclining motion with respect to the drive shaft to drive the pistons. The swash plate is movable between a maximum inclined angle and a minimum inclined angle. A disconnecting member disconnects the refrigerant circuit from the refrigerant gas passage when the swash plate is at the minimum inclined angle. A bleed hole bleeds the refrigerant gas from the refrigerant gas passage to the refrigerant circuit to suppress rapid increase of the inclined angle when the disconnecting member operates.

    摘要翻译: 压缩机具有选择性地连接到从压缩机分开设置的制冷剂回路和从其断开的制冷剂气体通道。 压缩机具有可在壳体中往复运动的多个活塞,用于压缩制冷剂气体。 驱动轴由壳体可旋转地支撑。 旋转斜盘支撑在驱动轴上,用于一体旋转,相对于驱动轴倾斜运动以驱动活塞。 斜盘可以在最大倾斜角和最小倾斜角之间移动。 当斜盘处于最小倾斜角时,断开构件将制冷剂回路与制冷剂气体通道断开。 泄放孔将制冷剂气体从制冷剂气体通路流向制冷剂回路,以抑制切断部件动作时的倾斜角度的急剧上升。

    Control valve in variable displacement compressor
    9.
    发明授权
    Control valve in variable displacement compressor 失效
    变排量压缩机中​​的控制阀

    公开(公告)号:US5890876A

    公开(公告)日:1999-04-06

    申请号:US829640

    申请日:1997-03-31

    摘要: A control valve in a compressor that adjusts the discharge displacement based on controlling of an inclination of a cam plate. The compressor includes a supply passage for connecting a discharge chamber with a crank chamber. The control valve is placed midway on the supply passage for adjusting the amount of the gas introduced into the crank chamber from the discharge chamber. The control valve has a valve hole and a valve chamber respectively disposed midway on the supply passage. A valve body is located in the valve chamber to adjust the opening size of the valve hole. A reacting member reacts to the pressure in the first area. The reacting member moves the valve body via a first rod in accordance with the pressure in the first area. A solenoid is opposed to the reacting member with respect to the valve body. The solenoid has a fixed core, a plunger and a plunger chamber. Electric current sent to the solenoid produces a magnetic attractive force between the core and the plunger in accordance with a magnitude of the current. A second rod is placed between the plunger and the valve body to urge the valve body by the magnetic attractive force. The discharge chamber is connected with the valve chamber. The crank chamber is connected with the valve hole and the plunger chamber.

    摘要翻译: 一种压缩机中的控制阀,其基于对凸轮板的倾斜度的控制来调节排出位移。 压缩机包括用于将排出室与曲轴室连接的供给通道。 控制阀位于供给通道的中途,用于调节从排出室引入曲柄室的气体的量。 控制阀具有分别设置在供给通道中途的阀孔和阀室。 阀体位于阀室中以调节阀孔的开口尺寸。 反应构件与第一区域中的压力反应。 反应构件根据第一区域中的压力经由第一杆移动阀体。 螺线管相对于阀体与反作用件相对。 螺线管具有固定芯,柱塞和柱塞室。 发送到螺线管的电流根据电流的大小在芯和柱塞之间产生磁吸引力。 第二杆被放置在柱塞和阀体之间,以通过磁力吸引力推动阀体。 排放室与阀室连接。 曲柄室与阀孔和柱塞室连接。

    Swash-plate compressor with leakage passages through the discharge
valves of the cylinders
    10.
    发明授权
    Swash-plate compressor with leakage passages through the discharge valves of the cylinders 失效
    斜盘式压缩机具有通过气缸排放阀的泄漏通道

    公开(公告)号:US5871337A

    公开(公告)日:1999-02-16

    申请号:US735671

    申请日:1996-10-23

    IPC分类号: F04B27/10 F04B39/10 F04B1/79

    CPC分类号: F04B39/1073 F04B27/1009

    摘要: A compressor has a swash (slanting-cam) plate located in a crank chamber and mounted on a drive shaft. The cam plate is tiltable between a maximum inclined angle position and a minimum inclined angle position with respect to a plane perpendicular to an axis of a drive shaft according to a difference between the pressures in the crank chamber and a cylinder bore. The cam plate varies the stroke of a piston in the cylinder bore based on an inclination thereof to control the displacement of the compressor. A shutter member is movable between a first position where the shutter member connects a external circuit with a suction chamber and a second position where the shutter member disconnects the external circuit with the suction chamber in response to the inclination of the cam plate. The cam plate moves the shutter member to the second position when the cam plate is at the minimum inclined angle position to minimize the displacement of the compressor. A valve plate is located between the cylinder bore and a gas chamber. The gas chamber is either the suction chamber or the discharge chamber. The valve plate has a port that connects the cylinder bore with the gas chamber and a valve that has open and shut positions. A passage is defined between the valve plate and the valve when the valve is shut to connect the cylinder bore with the gas chamber.

    摘要翻译: 压缩机具有位于曲柄室中并安装在驱动轴上的斜盘(倾斜 - 凸轮)板。 凸轮板可以根据曲柄室中的压力和气缸孔之间的差异,相对于垂直于驱动轴的轴线的平面在最大倾斜角度位置和最小倾斜角度位置之间倾斜。 凸轮板基于其倾斜度改变气缸孔中的活塞的行程,以控制压缩机的排量。 活门构件可在第一位置和第二位置之间移动,所述第一位置与闸门构件连接外部电路与吸入室,并且第二位置,其中挡板构件响应于凸轮板的倾斜而使外部电路与吸入室断开。 当凸轮板处于最小倾斜角度位置时,凸轮板将活门构件移动到第二位置,以最小化压缩机的位移。 阀板位于气缸孔和气室之间。 气室是吸气室或排气室。 阀板具有将气缸孔与气室连接的端口和具有打开和关闭位置的阀。 当阀关闭以将气缸孔与气室连接时,在阀板和阀之间限定通道。