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公开(公告)号：US4611977A
公开(公告)日：1986-09-16
申请号：US640312
申请日：1984-08-13
IPC分类号： F04C18/344 , F01C21/08 , F04C18/00
CPC分类号： F01C21/0872
摘要： A vane compressor has a vane back pressure adjustment device including back-pressure chambers defined in a vane-supporting rotor and surrounded by vanes and side blocks secured to axial ends of a cylinder. The back-pressure chamber has axial ends disposed to follow a path against each of the side blocks when the rotor rotates. The path is divided into at least one high-pressure zone in which the vanes move across a pump outlet defined in the cylinder, and at least one normal-pressure zone which is the remainder of the path. In the normal-pressure zone, oil grooves defined in surfaces of the side blocks which face the rotor and supplied with oil from an oil sump in the vane compressor are in communication with the back-pressure chambers, to thereby maintain the oil pressure in the back-pressure chambers at a pressure level in the oil sump. In the high-pressure zone, the back-pressure chambers are out of communication with the oil grooves so that the oil fed into the back-pressure chambers is confined therein, except through a restrictor means. When the vanes move across the pump outlet, the vanes enter the high-pressure zone to trap oil in the back-pressure chambers to thereby elevate the oil pressure in the back-pressure chambers to a high level. Therefore, the vanes are prevented from being retracted deeply into vane slits in the rotor and then popping out into hitting engagement with the cylinder.
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公开(公告)号：US4717321A
公开(公告)日：1988-01-05
申请号：US874555
申请日：1986-06-16
IPC分类号： F04C18/344 , F01C21/08 , F04C29/02
CPC分类号： F01C21/0872
摘要： A vane compressor has a vane back pressure adjustment device including back-pressure chambers defined in a vane-supporting rotor and surrounded by vanes and side blocks secured to axial ends of a cylinder. The back-pressure chamber has axial ends disposed to follow a path against each of the side blocks when the rotor rotates. The path is divided into at least one high-pressure zone in which the vanes move across a pump outlet defined in the cylinder, and at least one normal-pressure zone which is the remainder of the path. In the normal-pressure zone, oil grooves defined in surfaces of the side blocks which face the rotor and supplied with oil from an oil sump in the vane compressor are in communication with the back-pressure chambers, to thereby maintain the oil pressure in the back-pressure chambers at a pressure level in the oil sump. In the high-pressure zone, the back-pressure chambers are out of communication with the oil grooves so that the oil fed into the back-pressure chambers is confined therein, except through a restrictor means. When the vanes move across the pump outlet, the vanes enter the high-pressure zone to trap oil in the back-pressure chambers to thereby elevate the oil pressure in the back-pressure chambers to a high level. Therefore, the vanes are prevented from being retracted deeply into vane slits in the rotor and then popping out into hitting engagement with the cylinder.
摘要翻译： 叶片式压缩机具有叶片背压调节装置，该叶片背压调节装置包括限定在叶片支承转子中的背压室，并被固定在气缸的轴向端部的叶片和侧块包围。 背压室具有轴向端部，当转子旋转时，轴向端部设置成沿着每个侧块的路径。 该路径被分成至少一个高压区域，在该高压区域中，叶片移动通过限定在气缸中的泵出口，以及作为路径的剩余部分的至少一个正常压力区域。 在正常压力区域中，限定在面向转子并且从叶片式压缩机中的油底壳供给油的侧块的表面中的油槽与背压室连通，从而将油压保持在 在油底壳中处于压力水平的背压室。 在高压区域中，背压室与油槽不连通，除了通过限流装置之外，供给到背压室的油被限制在其中。 当叶片移动穿过泵出口时，叶片进入高压区以捕获背压室中的油，从而将背压室中的油压提升到高水平。 因此，防止叶片深深地缩回到转子中的叶片狭缝中，然后弹出与滚筒的接合。
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公开(公告)号：US4571164A
公开(公告)日：1986-02-18
申请号：US715770
申请日：1985-03-25
IPC分类号： F04C18/344 , F01C21/08 , F04C18/00 , F04C29/02
CPC分类号： F01C21/0872
摘要： A vane compressor has a vane back pressure adjustment device including back-pressure chambers defined in a vane-supporting rotor and surrounded by vanes and side blocks secured to axial ends of a cylinder. The back-pressure chamber has axial ends disposed to follow a path against each of the side blocks when the rotor rotates. The path is divided into at least one high-pressure zone in which the vanes move across a pump outlet defined in the cylinder, and at least one normal-pressure zone which is the remainder of the path. In the normal-pressure zone, oil grooves defined in surfaces of the side blocks which face the rotor and supplied with oil from an oil sump in the vane compressor are in communication with the back-pressure chambers, to thereby maintain the oil pressure in the back-pressure chambers at a pressure level in the oil sump. In the high-pressure zone, the back-pressure chambers are out of communication with the oil grooves so that the oil fed into the back-pressure chambers is confined therein, except through a restrictor means. When the vanes move across the pump outlet, the vanes enter the high-pressure zone to trap oil in the back-pressure chambers to thereby elevate the oil pressure in the back-pressure chambers to a high level. Therefore, the vanes are prevented from being retracted deeply into vane slits in the rotor and then popping out into hitting engagement with the cylinder.
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公开(公告)号：US4810177A
公开(公告)日：1989-03-07
申请号：US108438
申请日：1987-10-13
IPC分类号： F01C21/08 , F04C18/344 , F04C29/02
CPC分类号： F01C21/0872
摘要： A vane compressor has a vane back pressure adjustment device including back-pressure chambers defined in a vane-supporting rotor and surrounded by vanes and side blocks secured to axial ends of a cylinder. The back-pressure chamber has axial ends disposed to follow a path against each of the side blocks when the rotor rotates. The path is divided into at least one high-pressure zone in which the vanes move across a pump outlet defined in the cylinder, and at least one normal-pressure zone which is the remainder of the path. In the normal-pressure zone, oil grooves defined in surfaces of the side blocks which face the rotor and supplied with oil from an oil sump in the vane compressor are in communication with the back-pressure chambers, to thereby maintain the oil pressure in the back-pressure chambers at a pressure level in the oil sump. In the high-pressure zone, the back-pressure chambers are out of communication with the oil grooves so that the oil fed into the back-pressure chambers is confined therein, except through a restrictor means. When the vanes move across the pump outlet, the vanes enter the high-pressure zone to trap oil in the back-pressure chambers to thereby elevate the oil pressure in the back-pressure chambers to a high level. Therefore, the vanes are prevented from being retracted deeply into vane slits in the rotor and then popping out into hitting engagement with the cylinder.
摘要翻译： 叶片式压缩机具有叶片背压调节装置，该叶片背压调节装置包括限定在叶片支承转子中的背压室，并被固定在气缸的轴向端部的叶片和侧块包围。 背压室具有轴向端部，当转子旋转时，轴向端部设置成沿着每个侧块的路径。 该路径被分成至少一个高压区域，在该高压区域中，叶片移动通过限定在气缸中的泵出口，以及作为路径的剩余部分的至少一个正常压力区域。 在正常压力区域中，限定在面向转子并且从叶片式压缩机中的油底壳供给油的侧块的表面中的油槽与背压室连通，从而将油压保持在 在油底壳中处于压力水平的背压室。 在高压区域中，背压室与油槽不连通，除了通过限流装置之外，供给到背压室的油被限制在其中。 当叶片移动穿过泵出口时，叶片进入高压区以捕获背压室中的油，从而将背压室中的油压提升到高水平。 因此，防止叶片深深地缩回到转子中的叶片狭缝中，然后弹出与滚筒的接合。
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公开(公告)号：US4144002A
公开(公告)日：1979-03-13
申请号：US795627
申请日：1977-05-10
CPC分类号： F04C29/023 , Y10S418/01
摘要： A rotor is operatively provided in a bore of a cylinder which is formed with an inlet and an outlet. The cylinder is enclosed by a housing with an annular chamber being defined between the cylinder and the housing. The housing has an inlet which is connected to the inlet of the cylinder. The outlet of the cylinder is provided at an upper portion thereof. An oil sump is defined by a lower portion of the annular chamber of the housing. A partition divides the interior of the housing into the annular chamber within which the cylinder is disposed and an outlet chamber which communicates with an outlet of the housing. The lower portion of the partition is cut away to communicate the annular chamber with the outlet chamber. An oil passageway leads from the oil sump through the rotor to the inlet of the housing in such a manner that oil flows through the oil passageway to lubricate the internal parts of the rotor and is entrained in operating fluid at the inlet of the housing, passing through the cylinder to lubricate areas of sliding contact between the rotor and the inner periphery of the cylinder. The operating fluid and oil expand and change direction in the annular chamber so that the operating fluid passes to the outlet chamber but the entrained oil is precipitated and returns to the oil sump.
摘要翻译： 转子可操作地设置在形成有入口和出口的圆筒的孔中。 气缸由壳体封闭，环形室限定在气缸和壳体之间。 壳体具有连接到气缸入口的入口。 气缸的出口设置在其上部。 油槽由壳体的环形室的下部限定。 隔板将壳体的内部分隔成其中设置有气缸的环形室，以及与壳体的出口连通的出口室。 切割隔板的下部以将环形室与出口室连通。 油通道从油底壳通过转子通过壳体的入口引导，使得油流过油通道以润滑转子的内部部分并被夹带在壳体入口处的工作流体中，通过 通过气缸润滑转子和气缸内周之间的滑动接触区域。 工作流体和油在环形室中膨胀和改变方向，使得工作流体通过出口室，但夹带的油被沉淀并返回到油底壳。
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6.发明授权Vane compressor having rearwardly located suction connector and discharge connector 失效叶片压缩机具有向后定位的吸入连接器和排出连接器
公开(公告)号：US4502854A
公开(公告)日：1985-03-05
申请号：US477015
申请日：1983-03-21
CPC分类号： F04C29/12
摘要： A vane compressor has a suction connector and a discharge connector arranged at a rear portion thereof. A rear suction chamber is formed at a rear side of the rear side block and communicates with pump working chambers. A passage means directly communicates the above rear suction chamber with an annular front suction chamber formed in the front head in a manner surrounding a sealing chamber accommodating a shaft-seal means.
摘要翻译： 叶片式压缩机具有设置在其后部的抽吸连接器和排出连接器。 后吸入室形成在后侧块的后侧并与泵工作室连通。 通道装置以围绕容纳轴封装置的密封室的方式直接将上述后吸入室与形成在前头中的环形前吸入室连通。
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公开(公告)号：US4507065A
公开(公告)日：1985-03-26
申请号：US491858
申请日：1983-05-05
申请人： Tsunenori Shibuya , Teruo Nakamura
发明人： Tsunenori Shibuya , Teruo Nakamura
CPC分类号： F04C29/02
摘要： A sealing chamber is defined between the front head and the front side block, and an oil chamber between the rear side block and a partition member secured to the rear end face of the rear side block, respectively. The drive shaft, on which the rotor is rigidly fitted, is radially supported by a pair of roller bearings provided at the front and rear side blocks. The bearings have end portions remote from the rotor enclosedly disposed in the sealing chamber and the oil chamber. The lubricating oil feeding system includes lubricating oil feeding bores formed in the front and rear side blocks and communicating with a zone under discharge pressure, and clearances between the front and rear side blocks and opposed end faces of the rotor. The clearances have predetermined flow resistance, and communicate, on one hand, with the back pressure chamber formed within the rotor, and on the other hand, with the sealing chamber and the oil chamber by way of the above roller bearings.
摘要翻译： 密封室限定在前头和前侧块之间，在后侧块和分隔构件之间的油室分别固定在后侧块的后端面上。 转子刚性安装在其上的驱动轴由设置在前后侧块上的一对滚子轴承径向支撑。 轴承具有远离转子的端部，其密封地设置在密封室和油室中。 润滑油供给系统包括形成在前侧块体和后侧块体中的润滑油供给孔，并且与排出压力下的区域连通，并且前后块体与转子的相对端面之间的间隙。 间隙具有预定的流动阻力，一方面与形成在转子内的背压室相通，另一方面与密封室和油室通过上述滚子轴承连通。
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8.发明授权
公开(公告)号：US4776778A
公开(公告)日：1988-10-11
申请号：US158135
申请日：1988-02-17
申请人： Masahiro Iio , Haruhiko Takada , Mitsuya Ono , Teruo Nakamura
发明人： Masahiro Iio , Haruhiko Takada , Mitsuya Ono , Teruo Nakamura
CPC分类号： F04C29/021
摘要： In a refrigerant compressor, a driving shaft is rotatably supported within a compressor housing by a bearing on a suction side. A trigger valve is provided in a passageway communicating a discharge pressure chamber with the bearing on the suction side. When pressure within the discharge pressure chamber is lower than a predetermined value, the trigger valve opens the passageway to permit gaseous refrigerant of high temperature within the discharge pressure chamber to be supplied to the bearing on the suction side.
摘要翻译： 在制冷剂压缩机中，驱动轴由吸入侧的轴承可旋转地支撑在压缩机壳体内。 触发阀设置在使排气压力室与吸力侧的轴承相通的通道中。 当排出压力室内的压力低于预定值时，触发阀打开该通道以允许排出压力室内的高温气态制冷剂被供给到吸入侧的轴承。
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9.发明授权Rotary compressor with blind hole in end wall that aligns with back pressure chamber 失效旋转压缩机在端壁处有盲孔，与背压室对齐
公开(公告)号：US4636153A
公开(公告)日：1987-01-13
申请号：US660773
申请日：1984-10-15
申请人： Yutaka Ishizuka , Teruo Nakamura
发明人： Yutaka Ishizuka , Teruo Nakamura
IPC分类号： F04C18/344 , F01C21/08 , F04C18/00
CPC分类号： F01C21/0872
摘要： A rotary compressor has a plurality of vanes which are slidably disposed in radial slots of a rotor to define fluid chambers in cooperation with a cylindrical housing. The radially innermost end of each vane, rotor and opposite ends of the housing define a back-pressure chamber which is supplied with a pressure during a suction stroke for maintaining the associated vane in sealing contact with the inner wall of the housing. Each of opposite ends of the housing has a unique configuration which damps the pressure in the back-pressure chamber when the chamber is fluidly isolated from a source of the pressure supply during a compression stroke, thereby eliminating excessive friction between the vane and the housing.
摘要翻译： 旋转压缩机具有多个叶片，其可滑动地设置在转子的径向槽中，以与圆柱形壳体协作地限定流体室。 每个叶片的径向最内端，转子和壳体的相对端限定了背压室，其在吸入冲程期间被供给压力，以保持相关联的叶片与壳体的内壁密封接触。 壳体的每个相对端具有独特的构造，当压缩冲程中腔室与压力源的源流体隔离时，该构造可抑制背压室中的压力，从而消除叶片和壳体之间的过度摩擦。
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公开(公告)号：US08022191B2
公开(公告)日：2011-09-20
申请号：US11498053
申请日：2006-08-03
IPC分类号： A61K38/18
CPC分类号： C07K14/505 , A61K38/1816 , A61K47/60
摘要： The present invention provides a polyethylene glycol-conjugated erythropoietin (PEG-conjugated EPO) prepared by PEG conjugation on the lysine residue at position 52 of native erythropoietin (native EPO). In order to achieve more sustained efficacy without losing physiological activities of native EPO, a glycoprotein rich in sugar chains, there has been a need to develop a PEG-conjugated EPO with significantly sustained efficacy by introducing a controlled number of PEG molecules at controlled positions. This PEG-conjugated EPO addresses such a need and provides more sustained efficacy.
摘要翻译： 本发明提供通过PEG缀合在天然促红细胞生成素（天然EPO）的52位的赖氨酸残基上制备的聚乙二醇缀合的促红细胞生成素（PEG-缀合的EPO）。 为了获得更持久的功效而不损失富含糖链的糖蛋白的天然EPO的生理活性，需要通过在受控位置引入受控数量的PEG分子来开发具有显着持续功效的PEG-缀合的EPO。 这种PEG结合的EPO解决了这种需要并提供更持久的功效。
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