公开(公告)号：US4815945A

公开(公告)日：1989-03-28

申请号：US196318

申请日：1988-05-20

申请人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Masaya Moruta ,  Toshio Yamaguchi ,  Kazuo Eitai

发明人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Masaya Moruta ,  Toshio Yamaguchi ,  Kazuo Eitai

IPC分类号： F04B49/02 ,  F04C28/14 ,  F04C29/12 ,  F04C29/08

CPC分类号： F04C29/128 ,  F04C28/14

摘要： 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.

摘要翻译： 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。

公开(公告)号：US4764099A

公开(公告)日：1988-08-16

申请号：US62441

申请日：1987-06-11

申请人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Shigeru Okada

发明人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Shigeru Okada

IPC分类号： F04C29/12 ,  F04B39/10 ,  F04C2/344 ,  B23P15/00 ,  F16K15/14

CPC分类号： F04C29/128 ,  F04B39/10 ,  Y10T137/784 ,  Y10T137/7889 ,  Y10T29/49236

摘要： A cylinder has at least one valve seating surface-forming portion which has an outer surface formed therein with at least one recess, the bottom surface of which serves as a valve seating surface. A discharge valve is arranged on the outer surface of the valve seating surface-forming portion to close or open outlet holes formed in respective ones of the valve seating surface at locations where the wall thickness of the cylinder is the minimum. The discharge valve has at least one elastic valve body having an arcuate cross section and disposed in tight contact with a corresponding one of the valve seating surface. The valve seating surface is arcuately concavely cured with almost the same radius of curvature as that of the valve body of the discharge valve.

摘要翻译： 气缸具有至少一个阀座表面形成部分，其具有在其中形成有至少一个凹部的外表面，其底表面用作阀座表面。 排气阀设置在阀座表面形成部分的外表面上，以在气缸的壁厚最小的位置处关闭或打开形成在各个阀座表面中的出口孔。 排出阀具有至少一个弹性阀体，该弹性阀体具有弓形横截面，并且与阀座表面中相应的一个紧密接触地设置。 阀座表面以与排放阀的阀体几乎相同的曲率半径弧形地凹入固化。

公开(公告)号：US4744732A

公开(公告)日：1988-05-17

申请号：US946425

申请日：1986-12-23

申请人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Shigeru Okada

发明人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Shigeru Okada

IPC分类号： F04B13/00 ,  F04B49/02 ,  F04B49/08 ,  F04C18/344 ,  F04C28/00 ,  F04C28/14

CPC分类号： F04C28/14

摘要： A variable capacity vane compressor comprises additional refrigerant inlet ports formed in one of front and rear side blocks of a cylinder accommodating a rotor, and communicating a suction chamber with a compression chamber on a suction stroke, and a control element received in a recess formed in an end face of the above one side block facing the rotor, for rotation to vary the opening angle of the additional inlet ports to thereby control the compression commencing timing of compression medium. At least one spacer is interposed between the control element and at least one of the above one side block and the rotor, for maintaining a predetermined minimum clearance therebetween.

摘要翻译： 可变容量叶片式压缩机包括形成在容纳转子的气缸的前侧和后侧块中的一个中的另外的制冷剂入口端口，并且在吸入行程上将吸入室与压缩室连通，以及控制元件， 上述一侧块的面向转子的端面，用于旋转以改变附加入口的开启角度，从而控制压缩介质的压缩开始时间。 在控制元件和上述一个侧块和转子中的至少一个之间插入至少一个间隔件，用于在其间保持预定的最小间隙。

公开(公告)号：US4744731A

公开(公告)日：1988-05-17

申请号：US68554

申请日：1987-07-01

申请人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Shigeru Okada ,  Kazuo Eitai

发明人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Shigeru Okada ,  Kazuo Eitai

IPC分类号： F04B49/02 ,  F04C18/344 ,  F04C28/14 ,  F04C29/08

CPC分类号： F04C28/14

摘要： 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.

摘要翻译： 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。

公开(公告)号：US4737081A

公开(公告)日：1988-04-12

申请号：US56604

申请日：1987-05-29

申请人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Shigeru Okada

发明人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Shigeru Okada

IPC分类号： F04B13/00 ,  F04B49/02 ,  F04C18/344 ,  F04C28/14 ,  F04C29/12 ,  F04C29/08

CPC分类号： F04C28/14

摘要： 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.

摘要翻译： 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。

公开(公告)号：US4505122A

公开(公告)日：1985-03-19

申请号：US538199

申请日：1983-10-03

申请人： Kenichi Inomata

发明人： Kenichi Inomata

IPC分类号： F04B27/14 ,  F04B39/10 ,  F04B49/00 ,  F04B49/02 ,  F04B49/22 ,  F04B49/24

CPC分类号： F04B49/225 ,  F04B49/02 ,  F04B49/246 ,  Y10T137/86743

摘要： In a multicylinder/double acting compressor, front and rear discharge chambers as well as front and rear suction chambers are out of communication with each other within the compressor. Arranged in one of the discharge chambers is a discharge valve formed of a rotary valve, which is disposed to close discharge ports communicating associated cylinder chambers with the same discharge chamber. The discharge valve is adapted to keep all the above discharge ports opened. An electromagnetic stop valve is connected between the above discharge chamber and an associated compression fluid circuit, for interrupting the communication therebetween. Half delivery operation of the compressor is carried out while the discharge ports are kept opened by the discharge valve and simultaneously the stop valve is closed, to establish communication between all the associated cylinder chambers and the discharge chamber through the opened discharge ports, whereby compression fluid is moved between the individual cylinder chambers without being compressed and expanded, as the pistons are reciprocated within the respective cylinder chambers.

摘要翻译： 在多缸/双作用压缩机中，前排气室和后排气室以及前后吸气室在压缩机内彼此不连通。 在一个排出室中排列的是由旋转阀形成的排出阀，该排出阀设置成将与相同的排出室连通的相关联的气缸室的排出口关闭。 排放阀适于保持所有上述排放口都打开。 电磁截止阀连接在上述放电室和相关联的压缩流体回路之间，用于中断它们之间的连通。 在排出口由排出阀保持打开的同时停止阀关闭的同时进行压缩机的半输送操作，通过打开的排出口在所有相关联的气缸室与排出室之间建立连通，由此压缩流体 在各个气缸室之间移动而不被压缩和膨胀，因为活塞在各个气缸室内往复运动。

公开(公告)号：US4861235A

公开(公告)日：1989-08-29

申请号：US309618

申请日：1989-02-10

申请人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Masaya Moruta ,  Kazuo Eitai ,  Toshio Yamaguchi

发明人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Masaya Moruta ,  Kazuo Eitai ,  Toshio Yamaguchi

IPC分类号： F04C28/26 ,  F04B49/00 ,  F04C18/344 ,  F04C28/14

CPC分类号： F04C28/14

摘要： A variable capacity type compressor in which a control element is mounted in one of side blocks formed with inlet ports for rotation about its own axis in opposite circumferential directions between a first extreme position providing the maximum capacity of the compressor, and a second extreme position providing the minimum capacity of the compressor, to vary the compression starting timing. The control element has cut-out portions through which compression medium is drawn into compression spaces, of which one upstream end with respect to the direction of rotor rotation determines the compression starting timing in cooperation with vanes passing same. The cut-out portion is formed of first and second portions circumferentially arranged. At least one recess is formed in an end face of the cam ring facing the control element, which opens in the camming inner peripheral surface thereof and circumferentially extends from a circumferential location at which a suction stroke is started in a compression space within the cylinder or from a point proximate thereto, toward a downstream side with respect to the direction of rotor rotation. The recess is disposed such that when the control element is in the second extreme position, the recess has a downstream end thereof with respect to the direction of rotor rotation positioned downstream of another end of the cut-out portion. The cut-out portion may further be formed with a third portion circumferentially extending continuously from the second portion toward an upstream side with respect to the direction of rotor rotation.

摘要翻译： 一种可变容量型压缩机，其中控制元件安装在一个侧块中，其中一个侧块形成有入口端口，用于在提供压缩机的最大容量的第一极限位置和提供压缩机的最大容量的第一极限位置之间沿相反的圆周方向围绕其自身的轴线旋转， 压缩机的最小容量，以改变压缩启动时间。 控制元件具有切口部分，压缩介质通过该切口部分被拉入压缩空间，其中相对于转子旋转方向的一个上游端与通过相同的叶片配合确定压缩开始时间。 切口部由周向布置的第一和第二部分形成。 至少一个凹部形成在面向控制元件的凸轮环的端面中，该凸轮环在其凸轮内周表面中开口，并且在从缸体内的压缩空间中开始吸入行程的周向位置周向延伸，或 从靠近其的点朝向相对于转子旋转方向的下游侧。 凹部设置成使得当控制元件处于第二极限位置时，凹部相对于位于切口部分的另一端的下游的转子旋转方向具有其下游端。 切出部分还可以形成有从第二部分朝相对于转子旋转方向的上游侧周向延伸的第三部分。

公开(公告)号：US4776770A

公开(公告)日：1988-10-11

申请号：US131990

申请日：1987-12-11

申请人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Shigeru Okada ,  Kazuo Eitai ,  Masaya Moruta ,  Toshio Yamaguchi

发明人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Shigeru Okada ,  Kazuo Eitai ,  Masaya Moruta ,  Toshio Yamaguchi

IPC分类号： F04B49/00 ,  F04B49/02 ,  F04C18/344 ,  F04C28/14 ,  F04C29/08

CPC分类号： F04C28/14

摘要： A variable capacity vane compressor in which one of front and rear side blocks has at least one inlet port divided into first and second portions, and a control element has at least one pressure-receiving protuberance dividing a space formed in the one side block into first and second pressure chambers, wherein the control element angularly moves in response to a differential pressure between the first and second pressure chambers, to vary the opening angle of the second portion of the at least one inlet port. A torsion coiled spring is fitted around a hub of the one side block for biasing the control element in a circumferential direction of increasing the opening angle of the second portion of the inlet port. The torsion coiled spring has an end thereof provided with a first engaging portion engaging a first retaining device provided in the control element, and another end thereof provided with a second engaging portion engaging a second retaining device provided in the hub, through a holding device. The second engaging portion of the spring comprises a first portion and a second portion extending at a predetermined angle with respect to the first portion and forming a tip, thus presenting a bent portion together with the first portion. The second retaining device of the hub comprises a first retaining portion engaging the first portion of the second engaging portion of the spring, and a second retaining portion extending at a predetermined angle with respect to the first retaining portion and engaging the second portion of the second engaging portion of the spring.

摘要翻译： 一种可变容量叶片式压缩机，其中前侧块和后侧块中的一个具有分成第一和第二部分的至少一个入口端口，并且控制元件具有至少一个受压突起，其将形成在所述一个侧块中的空间分成第一 和第二压力室，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角度地移动，以改变所述至少一个入口端口的第二部分的打开角度。 扭转螺旋弹簧围绕一侧块的轮毂安装，用于在增加入口端部的第二部分的开启角度的周向上偏压控制元件。 扭转螺旋弹簧的端部具有接合设置在控制元件中的第一保持装置的第一接合部分，并且其另一端通过保持装置设置有与设置在轮毂中的第二保持装置接合的第二接合部分。 弹簧的第二接合部分包括相对于第一部分以预定角度延伸的第一部分和第二部分，并形成尖端，从而与第一部分一起呈现弯曲部分。 轮毂的第二保持装置包括接合弹簧的第二接合部分的第一部分的第一保持部分和相对于第一保持部分以预定角度延伸并与第二保持部分的第二部分接合的第二保持部分 弹簧的接合部分。

公开(公告)号：US4712987A

公开(公告)日：1987-12-15

申请号：US862758

申请日：1986-05-13

申请人： Kenichi Inomata

发明人： Kenichi Inomata

IPC分类号： F01C21/10 ,  F04C18/344

CPC分类号： F01C21/106 ,  F04C18/3446

摘要： The endless camming inner peripheral surface of the pump housing, which performs one cycle of suction, compression and discharge of fluid in cooperation with the vanes and the rotor, has a cam profile including an increasing radius portion along which the amount of protrusion of each vane from the rotor gradually increases with movement of the vane, and a decreasing radius portion along which the amount of protrusion of each vane from the rotor gradually decreases with movement of the vane. The increasing radius portion and the decreasing radius portion are continuously arranged in the order mentioned and in the moving direction of the vanes. The increasing radius portion terminates in a first half of the whole circumferential length of the one cycle performing portion of the endless camming inner peripheral surface. The cam profile of the one cycle performing portion of the camming surface is calculated by the use of a single equation.

摘要翻译： 与叶片和转子一起执行一个循环的流体的一个循环的泵壳的环形凸轮内周面具有凸轮轮廓，凸轮轮廓包括增加的半径部分，每个叶片的突出量沿着凸轮轮廓 来自转子的叶片随着叶片的运动而逐渐增加，并且随着叶片的运动，每个叶片从转子的突出量逐渐减小的半径减小部分。 增加的半径部分和减小的半径部分按照所述的顺序和叶片的移动方向连续地布置。 增加的半径部分终止于环形凸轮内周面的一个循环执行部分的整个圆周长度的前半部分。 通过使用单个等式来计算凸轮表面的一个循环执行部分的凸轮轮廓。

公开(公告)号：US4878814A

公开(公告)日：1989-11-07

申请号：US257980

申请日：1988-10-31

申请人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Masaya Moruta ,  Toshio Yamaguchi ,  Kazuo Eitai

发明人： Nobuyuki Nakajima ,  Kenichi Inomata ,  Masaya Moruta ,  Toshio Yamaguchi ,  Kazuo Eitai

IPC分类号： F04C28/26 ,  F04B39/00 ,  F04B49/02 ,  F04C18/344 ,  F04C28/14 ,  F04C28/28

CPC分类号： F04C28/14

摘要： A variable capacity compressor including a pumping device, and a control element the position of which can be changed to determine the capacity of the pumping device. The compressor comprises: a detector for detecting change in the position of the control element in a continuous manner; and a capacity-indicating device for visually indicating an output value thereof in a manner continuously variable in response to a continuous change in output from the detector, whereby the output value visually indicated by the capacity-indicating device varies continuously with a continuous change in the capacity of the pumping device.

摘要翻译： 一种包括泵送装置的可变容量压缩机和可以改变其位置以确定泵送装置的容量的控制元件。 压缩机包括：用于以连续方式检测控制元件的位置变化的检测器; 以及容量指示装置，用于响应于来自检测器的输出的连续变化而以可连续变化的方式可视地指示其输出值，由容量指示装置目视指示的输出值随着连续变化而不断变化 泵送装置的容量。