公开(公告)号：US4286932A

公开(公告)日：1981-09-01

申请号：US9803

申请日：1979-02-06

申请人： Shojiro Nagano ,  Naohiro Naganuma ,  Mikiji Ito

发明人： Shojiro Nagano ,  Naohiro Naganuma ,  Mikiji Ito

IPC分类号： F04B45/04 ,  F04B21/04

CPC分类号： F04B45/043

摘要： A diaphragm pump including an eccentric circular cam or crank shaft, a connecting rod rotatably connected at one end to the eccentric circular cam or crank shaft, a pair of diaphragms each having one surface serving as pressure receiving surface, center disks mounting the central portions of the pair of diaphragms on the opposite sides thereof, a first housing cooperating with one of the diaphragms and the center disks to define a first discharge chamber, a second housing cooperating with the other of the diaphragms and the center disks to define a second discharge chamber, a third housing cooperating with the pair of diaphragms and the center disks to define a suction chamber, a connecting member connecting the other end of the connecting rod to the center disks in the radial center and in the middle of the thickness thereof in order to minimize any swinging movement of the center disks which would otherwise be caused by reciprocatory swinging movement of the connecting rod, and guide means for guiding the center disks for preventing any swinging movement thereof.

摘要翻译： 包括偏心圆形凸轮或曲轴的隔膜泵，一端可旋转地连接到偏心圆形凸轮或曲轴的连接杆，一对具有一个表面用作压力接收表面的隔膜，安装中心部分的中心盘 在其相对侧上的一对隔膜，与隔膜中的一个和中心盘配合的第一壳体以限定第一排放室，与另一个隔膜和中心盘配合的第二壳体，以限定第二排放室 ，与所述一对隔膜和所述中心盘配合的第三壳体以限定抽吸室，连接构件将所述连杆的另一端连接到所述径向中心的中心盘和所述中心盘的厚度的中间，以便 最小化中心盘的任何摆动运动，否则将由连杆的往复摆动和引导引起 用于引导中心盘以防止其摆动的装置。

公开(公告)号：US4263783A

公开(公告)日：1981-04-28

申请号：US919833

申请日：1978-06-28

申请人： Motohisa Miura ,  Shojiro Nagano ,  Naohiro Naganuma ,  Mikiji Ito

发明人： Motohisa Miura ,  Shojiro Nagano ,  Naohiro Naganuma ,  Mikiji Ito

IPC分类号： F01N3/22 ,  F01N3/32 ,  F02D21/08 ,  F02D35/00 ,  F02M25/07 ,  F01N3/10 ,  F02M25/06

CPC分类号： F01N3/22 ,  F01N3/227 ,  F01N3/32 ,  F02M26/55 ,  F02M26/61 ,  F02M2026/002 ,  F02M2026/005 ,  Y02T10/20

摘要： An engine exhaust gas purification system includes an EGR line for the recirculation of exhaust gases from an engine exhaust system back into an intake system thereof. An EGR valve is provided in the EGR line to control the rate of EGR. The EGR valve is actuated by an actuator which is operated by pressurized air supplied by a diaphragm pump driven by the engine in proportion to the engine speed. The pressure of the pressurized air is substantially proportional to the engine speed, whereby the EGR rate is controlled so as to be substantially proportional to the engine speed.

摘要翻译： 发动机废气净化系统包括用于将来自发动机排气系统的废气再循环回到其进气系统中的EGR管线。 EGR阀设置在EGR管线中以控制EGR率。 EGR阀由致动器致动，致动器由与发动机转速成比例的由发动机驱动的隔膜泵供应的加压空气操作。 加压空气的压力基本上与发动机转速成比例，由此EGR速率被控制成与发动机转速成正比。

公开(公告)号：US4137020A

公开(公告)日：1979-01-30

申请号：US863580

申请日：1977-12-22

申请人： Mikiji Ito ,  Naohiro Naganuma ,  Shojiro Nagano

发明人： Mikiji Ito ,  Naohiro Naganuma ,  Shojiro Nagano

IPC分类号： F02B67/04 ,  F04B39/02 ,  F04B45/04 ,  F16J15/52 ,  F16J15/00

CPC分类号： F04B45/041 ,  F02B67/04 ,  F04B39/02 ,  F16J15/52

摘要： A diaphragm is interposed between first and second housings to form first and second diaphragm chambers at both sides thereof for pumping out air in accordance with expansion and contraction of the chambers. A shaft for reciprocally moving the diaphragm is connected thereto at one end and extends through a hole formed in a bushing which is fixed to the second housing. A lever is pivotally secured to the housing to perform a pivotal movement and operatively connected at its inner end to the other end of the shaft in a lever compartment of the housing and at its outer end to an eccentric cam formed on an engine crankshaft, so that the motion of the cam is transmitted to the shaft as the reciprocal movement through the pivotal movement of the lever. A bellows is disposed in the second diaphragm chamber surrounding a portion of the shaft, wherein the upper and lower ends are respectively and air-tightly connected to the diaphragm and the bushing to form a bellows chamber. An axially extending groove is formed on either the inner surface of the hole or the outer surface of the shaft, so that the bellows chamber is communicated with the lever compartment by the groove. The compartment is communicated with an engine crankcase and thereby filled with a large amount of engine oil mist. The bellows chamber is also subjected to expansion and contraction in accordance with the reciprocal movement of the shaft to alternately draw into and force out air in the compartment, so that a portion of the mist is forcibly introduced into the groove to lubricate the shaft and the bushing.

摘要翻译： 隔膜位于第一和第二壳体之间，以在其两侧形成第一和第二隔膜室，用于根据室的膨胀和收缩抽出空气。 用于往复移动隔膜的轴在一端连接到其上并延伸穿过形成在固定到第二壳体的衬套中的孔。 杠杆被枢转地固定到壳体以执行枢转运动，并且在其内端处在壳体的杠杆室中的轴的另一端可操作地连接到壳体的杠杆室，并且在其外端处连接到形成在发动机曲轴上的偏心凸轮，因此 当通过杠杆的枢转运动的往复运动时，凸轮的运动被传递到轴。 波纹管设置在围绕轴的一部分的第二隔膜室中，其中上端和下端分别气密地连接到隔膜和衬套以形成波纹管室。 在孔的内表面或轴的外表面上形成有轴向延伸的槽，使得波纹管室通过槽与杠杆室连通。 隔间与发动机曲轴箱连通，由此充满大量的发动机油雾。 波纹管室也根据轴的往复运动而受到膨胀和收缩，以交替地吸入和排出隔室中的空气，使得一部分雾被强制地引入槽中以润滑轴和 衬套。