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    • 61. 发明授权
    • Variable capacity vane compressor
    • 可变容量叶片式压缩机
    • US5056990A
    • 1991-10-15
    • US428828
    • 1989-10-30
    • Nobuyuki Nakajima
    • Nobuyuki Nakajima
    • F04C28/26F04B49/00F04B49/02F04C18/344F04C28/14
    • F04C28/14
    • A variable capacity vane compressor has a control element rotatable in response to the difference between suction pressure and control pressure for varying the compression starting timing and hence the capacity. A communication passage extends between the suction chamber and a high pressure chamber in which the control pressure is created. A spool valve opens and closes the communicating passage. An electromagnetic actuator generates an electromagnetic force to cause the spool valve to open the communication passage when energized. A control unit is arranged outside of the compressor and supplies the actuator with an external control signal for energizing the actuator.
    • 可变容积叶片式压缩机具有响应于吸入压力和控制压力之间的差异而可旋转的控制元件,用于改变压缩起始时间,因此改变容量。 连通通道在吸入室和产生控制压力的高压室之间延伸。 滑阀打开和关闭连通通道。 电磁执行器产生电磁力,以在通电时使滑阀打开通信通道。 控制单元设置在压缩机外部,并向致动器提供用于激励致动器的外部控制信号。
    • 62. 发明授权
    • Control valve device for variable capacity compressors
    • 用于可变容量压缩机的控制阀装置
    • US5017097A
    • 1991-05-21
    • US471510
    • 1990-01-29
    • Nobuyuki Nakajima
    • Nobuyuki Nakajima
    • F04C28/26F04C18/344F04C28/14F25B49/02
    • F04C28/14F25B49/022
    • A variable capacity compressor includes a control element for determining timing of start of compression of a refrigerant gas. Control pressure which prevails in a high-pressure chamber acts on the control element. The high-pressure chamber communicates with a suction chamber via a communicating passage, across which is arranged a control valve device for opening and closing the communicating passage to change the control pressure within the high-pressure chamber. The control valve device comprises a valve body, a spring urging the valve body in a closing direction, and a bellows expansible and contractible in direct response to suction pressure within the suction chamber for urging the valve body in an opening direction against the force of the spring when it is expanded. A high pressure-introducing passage has one end opening into a space within which discharge pressure prevails and another end facing the valve body, the discharge pressure from the space prevailing within the high pressure-introducing passage. A plunger is slidably fitted in the high pressure-introducing passage and projects out of the other end thereof. The plunger is responsive to the discharge pressure within the high pressure-introducing passage to urge the valve body in a closing direction.
    • 可变容量压缩机包括用于确定制冷剂气体的压缩开始时间的控制元件。 在高压室中存在的控制压力作用在控制元件上。 高压室经由连通通路与吸入室连通,配置有用于打开和关闭连通通道的控制阀装置,以改变高压室内的控制压力。 控制阀装置包括阀体,弹簧沿关闭方向推动阀体,以及可膨胀和收缩的波纹管,其直接响应于吸入室内的吸入压力,用于抵抗阀体的打开方向推压阀体 春天膨胀时。 高压引入通道具有一个开口进入排出压力占优的空间,另一端面对阀体,来自高压导入通道内的空间的排出压力。 柱塞可滑动地装配在高压导入通道中并突出到另一端。 柱塞响应于高压引入通道内的排出压力,以便在闭合方向上推动阀体。
    • 63. 发明授权
    • Variable capacity vane compressor
    • 可变容量叶片式压缩机
    • US4815945A
    • 1989-03-28
    • US196318
    • 1988-05-20
    • Nobuyuki NakajimaKenichi InomataMasaya MorutaToshio YamaguchiKazuo Eitai
    • Nobuyuki NakajimaKenichi InomataMasaya MorutaToshio YamaguchiKazuo Eitai
    • F04B49/02F04C28/14F04C29/12F04C29/08
    • F04C29/128F04C28/14
    • A variable capacity vane compressor has a cylinder including a cam ring having an inner peripheral surface with an oblong cross section and within which a rotor is rotatably received, a plurality of vanes carried by the rotor, and a control plate disposed in the cylinder for rotation in opposite circumferential directions and having a peripheral edge formed with at least one cut-out portion. The control plate is disposed to rotate in response to a difference between pressure from a lower pressure zone and pressure from a higher pressure zone to cause a change in the circumferential position of the cut-out portion, thereby varying the compression commencing timing of the compressor and hence the capacity of same. The cut-out portion of the control plate comprises a first portion circumferentially extending from a downstream end of the cut-out portion with respect to the direction of rotation of the rotor to an intermediate portion of the same, and a second portion circumferentially extending from the intermediate portion to an upstream end of the cut-out portion, and being shallower than the first portion. The cut-out portion has such a circumferential position and length that the second portion is positioned radially inwardly of the inner peripheral surface of the cam ring and has an upstream end and a downstream end thereof positioned, respectively, upstream of a downstream end of an inlet port formed in the cylinder and downstream of same, when the control plate member is circumferentially displaced to an extreme circumferential position in which the minimum capacity of the compressor is obtained, whereby unnecessary compression is prevented.
    • 可变容量叶片式压缩机具有圆筒,该圆筒包括具有长圆形横截面的内周面的凸轮环,转子可旋转地容纳在其中,转子承载的多个叶片和设置在所述圆筒中的控制板旋转 在相对的圆周方向上具有形成有至少一个切口部分的周缘。 控制板设置成响应于来自较低压力区域的压力与来自较高压力区域的压力之间的差异而旋转,从而导致切口部分的周向位置的改变,从而改变压缩机的压缩开始时间 因此容量相同。 控制板的切口部分包括从切口部分的下游端相对于转子的旋转方向周向延伸到其中间部分的第一部分,第二部分周向地从 所述中间部分到所述切口部分的上游端,并且比所述第一部分浅。 切口部具有这样的圆周位置和长度,使得第二部分位于凸轮环的内周表面的径向内侧,并且其上游端和下游端分别位于下游端的下游端 入口端口形成在气缸中并且在其下游,当控制板构件周向地移位到获得压缩机的最小容量的极端圆周位置时,从而防止了不必要的压缩。
    • 64. 发明授权
    • Vane compressor without occurrence of vane chattering
    • 叶片压缩机不发生叶片颤动
    • US4802830A
    • 1989-02-07
    • US139646
    • 1987-12-29
    • Nobuyuki Nakajima
    • Nobuyuki Nakajima
    • F01C21/10F04C18/344
    • F04C18/3446F01C21/106
    • A vane compressor in which a plurality of pumping chambers are defined by a cam ring, side blocks closing respectively opposite axial open ends of the cam ring, a rotor rotatably arranged within the cam ring, and a plurality of vanes slidably fitted for radial movement in an outer peripheral surface of the rotor. The pumping chambers have their respective volumes varying with rotation of the rotor. The cam ring has an inner peripheral camming surface with a cam profile consisting of a first regularly circular portion at which the outer peripheral surface of the rotor is in close contact with the inner peripheral camming surface, an increasing radius portion along which an amount of vane protrusion progressively increases, a constant radius portion along which the amount of vane protrusion is maintained constant, a decreasing radius portion along which the amount of vane protrusion progressively decreases, and a second regularly circular portion at which the rotor outer peripheral surface is in close contact with the inner peripheral camming surface. These portions are arranged in continuous relation to each other in the order mentioned above. Acceleration of vane protrusion is substantially low at an initiating edge of the increasing radius portion.
    • 一种叶片式压缩机,其中多个泵送室由凸轮环限定,分别相对于所述凸轮环的轴向开口端相对的侧块,可旋转地布置在所述凸轮环内的转子和可滑动地安装以用于径向运动的多个叶片 转子的外周面。 泵送室的各自体积随转子的旋转而变化。 凸轮环具有内周凸轮表面,凸轮轮廓由第一规则圆形部分组成,转子的外周表面与内周凸轮表面紧密接触,一个增加的半径部分 突起逐渐增大,叶片突出量保持恒定的恒定半径部分,叶片突出量逐渐减小的缩小半径部分和转子外周面紧密接触的第二规则圆形部分 与内周边凸轮表面。 这些部分按照上述顺序彼此连续地布置。 在增加半径部分的起始边缘处,叶片突起的加速度基本上较低。
    • 65. 发明授权
    • Variable capacity vane compressor
    • 可变容量叶片式压缩机
    • US4778352A
    • 1988-10-18
    • US884756
    • 1986-07-11
    • Nobuyuki Nakajima
    • Nobuyuki Nakajima
    • F04C28/26B60H1/32F04B1/04F04B49/00F04B49/02F04C18/344F04C18/36F04C28/00F04C28/14F04C29/12
    • F04C28/14
    • An improved variable capacity vane compressor has at least one second inlet port formed in a cylinder for communicating a suction chamber with at least one compression chamber during a suction stroke. An opening control device varies the opening angle of the second inlet port, and has a pressure receiving portion defining a first pressure chamber communicating with a high pressure side, and a second pressure chamber communicating with a low pressure side. The control device is angularly displaceable in response to a difference between a high pressure and a low pressure in the chambers for causing the opening angle of the second inlet port to vary. A pressure control device is responsive to at least one parameter representative of a thermal load on the compressor for varying at least one of the high and low pressures in the first and second pressure chambers.
    • 改进的可变容量叶片压缩机具有形成在气缸中的至少一个第二入口端口,用于在抽吸行程期间将抽吸室与至少一个压缩室连通。 打开控制装置改变第二入口的打开角度,并且具有限定与高压侧连通的第一压力室的压力接收部和与低压侧连通的第二压力室。 控制装置响应于腔室中的高压和低压之间的差异而成角度地移位,以使第二入口端口的打开角度发生变化。 压力控制装置响应于表示压缩机上的热负荷的至少一个参数,用于改变第一和第二压力室中的高压和低压中的至少一个。
    • 68. 发明授权
    • Variable capacity vane compressor
    • 可变容量叶片式压缩机
    • US4744731A
    • 1988-05-17
    • US68554
    • 1987-07-01
    • Nobuyuki NakajimaKenichi InomataShigeru OkadaKazuo Eitai
    • Nobuyuki NakajimaKenichi InomataShigeru OkadaKazuo Eitai
    • F04B49/02F04C18/344F04C28/14F04C29/08
    • F04C28/14
    • A variable capacity vane compressor comprising a control element having at least one pressure-receiving protuberance dividing a space into a first and a second pressure chamber, wherein the control element angularly moves in response to a differential pressure between the first and second pressure chambers, to vary an opening angle of a second portion of at least one inlet port. The control element has mounted thereon a sealing member for sealing between the first and second pressure chambers and between a low pressure chamber and a vane back pressure zone. The sealing member comprises a first sealing portion for sealing between a peripheral wall surface of a central bore in the control element and an inner peripheral side wall surface of an annular recess in a side block, a second sealing portion for sealing between an outer peripheral surface of the control element and an outer peripheral side wall surface of the annular recess, a third sealing portion for sealing between an outer peripheral edge of the pressure-receiving protuberance and the wall surface of the space, and a fourth sealing portion for sealing between an axial end face of the control element and a bottom wall surface of the annular recess.
    • 一种可变容量叶片式压缩机,包括控制元件,所述控制元件具有至少一个将空间分成第一和第二压力室的压力接收突起,其中所述控制元件响应于所述第一和第二压力室之间的压差而成角度地移动, 改变至少一个入口的第二部分的打开角度。 控制元件上安装有用于密封第一和第二压力室之间以及在低压室和叶片背压区之间的密封构件。 密封构件包括用于密封控制元件中的中心孔的周壁表面和侧块中的环形凹部的内周侧壁表面的第一密封部分,用于密封外周表面 所述第一密封部和所述第二密封部,所述第二密封部用于密封所述受压突起的外周边缘与所述空间的壁面之间, 控制元件的轴向端面和环形凹部的底壁表面。
    • 69. 发明授权
    • Variable capacity vane compressor
    • 可变容量叶片式压缩机
    • US4737081A
    • 1988-04-12
    • US56604
    • 1987-05-29
    • Nobuyuki NakajimaKenichi InomataShigeru Okada
    • Nobuyuki NakajimaKenichi InomataShigeru Okada
    • F04B13/00F04B49/02F04C18/344F04C28/14F04C29/12F04C29/08
    • F04C28/14
    • A variable capacity vane compressor has a pressure chamber formed in one of side blocks of a cylinder and communicating a zone under lower pressure with a zone under higher pressure, and at least one second inlet port the opening angle of which is variable in response to a difference between pressure within a first pressure chamber of the pressure chamber and pressure within a second pressure chamber of same. The second pressure chamber is communicated with the zone under higher pressure via a high-pressure communication passage and with the zone under lower pressure via a low-pressure communication passage. A control valve device extends across the high-pressure communication passage and the low-pressure communication passage, and is disposed to close the low-pressure communication passage and simultaneously open the high-pressure communication passage when pressure within the zone under lower pressure exceeds a predetermined value, and to open the low-pressure communication passage and simultaneously effect one of closing and reduction of the opening area of the high-pressure communication passage when the pressure within the zone under lower pressure is below the predetermined value, whereby the capacity of the compressor can be varied with high responsiveness.
    • 可变容量叶片式压缩机具有形成在气缸的侧块中的一个中的压力室,并在较低压力下与较高压力的区域连通,以及至少一个第二入口,其开度角响应于 压力室的第一压力室内的压力与其相同的第二压力室内的压力之差。 第二压力室通过高压连通通道和较低压力下的区域通过低压连通通道与较高压力的区域连通。 控制阀装置延伸穿过高压连通通道和低压连通通道,并且设置成在低压连通通道内的压力超过a时,关闭低压连通通道并同时打开高压连通通道 并且当低压区内的压力低于预定值时,打开低压连通通道同时实现高压连通通道的开口面积的关闭和减小, 压缩机可以以高响应性变化。