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公开(公告)号：US20170211389A1
公开(公告)日：2017-07-27
申请号：US15328849
申请日：2015-07-24
Applicant: LONTRA LIMITED
Inventor： Stephen Francis Lindsey
CPC classification number: F01C3/025 , F01C11/004 , F01C19/125 , F02B53/00 , F04C3/04 , F04C2230/91 , F04C2230/92
Abstract: A rotary piston and cylinder device (1) comprising a rotor (2), a stator and a shutter disc (3), the rotor comprising a piston (5) which extends from the rotor into the cylinder space, the rotor and the stator together defining the cylinder space, the shutter disc passing through the cylinder space and forming a partition therein, and the disc comprising a slot (32a) which allows passage of the piston therethrough, and a surface of the rotor and a surface of the stator opposing each other forming a close-running surface pair, and at least one of the surfaces comprising an abradable coating (10) which is provided with a plurality of recess formations, and the recess formations are discontinuous from each other.
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公开(公告)号：US08348650B2
公开(公告)日：2013-01-08
申请号：US12440690
申请日：2008-07-17
Applicant: Masahiro Inagaki , Shinya Yamamoto , Makoto Yoshikawa , Yuya Izawa
Inventor： Masahiro Inagaki , Shinya Yamamoto , Makoto Yoshikawa , Yuya Izawa
CPC classification number: F01C1/126 , F01C1/086 , F01C11/002 , F01C19/125 , F01C21/02 , F01C21/10 , F04C2230/60 , F04C2240/56
Abstract: A housing of a Roots pump is configured by joining a lower housing member and an upper housing member that are separable from each other. With the upper and lower housing members joined together, an upper accommodating portion and a lower accommodating portion form a front bearing accommodating portion and a rear bearing accommodating portion, which accommodate whole bearings, respectively. The Roots pump further includes bearing holders attached to the bearings and fixed to the lower housing member so that the bearings are received in the lower accommodating portion in a positioned state.
Abstract translation: 罗茨泵的壳体通过连接可彼此分离的下壳体构件和上壳体构件而构成。 在上壳体构件和下壳体连接在一起的情况下，上容纳部分和下容纳部分分别形成容纳整个轴承的前轴承容纳部分和后轴承容纳部分。 罗茨泵还包括附接到轴承并固定到下壳体构件的轴承座，使得轴承在定位状态下容纳在下容纳部分中。
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公开(公告)号：US20100092325A1
公开(公告)日：2010-04-15
申请号：US12444964
申请日：2007-10-16
Applicant: Sven Olov Roger Edlund , Heino Elmessaar , Johan Fredrik Lindgren , Hans Reinhold Svedman
CPC classification number: F01C1/3441 , F01C19/125
Abstract: A pneumatic vane motor includes a stator with a cylinder, an inlet connectable to a pressure air source and an outlet connectable to an exhaust passage, a rotor journalled in the stator, and an output shaft. The stator has a front opening forming a clearance seal relative to the output shaft and an annular front cover with at least one elastic annular seal element encircling the output shaft at a distance from the clearance seal, wherein a low pressure chamber is formed between the clearance seal and the seal element or elements and communicates with the exhaust passage.
Abstract translation: 气动叶片马达包括具有气缸的定子，可连接到压力空气源的入口和可连接到排气通道的出口，轴颈安装在定子中的转子和输出轴。 定子具有相对于输出轴形成间隙密封的前开口和环形前盖，其中至少一个弹性环形密封元件围绕输出轴与间隙密封相隔一定距离，其中在间隙之间形成低压室 密封和密封元件，并与排气通道连通。
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公开(公告)号：US20090102135A1
公开(公告)日：2009-04-23
申请号：US11876768
申请日：2007-10-22
Applicant: Tsun-Sheng Chen
Inventor： Tsun-Sheng Chen
IPC: F16J15/54
CPC classification number: F16J15/3268 , F01C19/125 , F04C2/3442 , F04C15/0038 , F04C2230/70 , F04C2240/30
Abstract: A front cover of a manual rotary pump includes a disk having a cavity eccentrically defined therein for airtightly receiving an oil seal. A through hole is defined in a bottom of the cavity to allow an input shaft of a rotor extending through the disk. The oil seal is airtightly sleeved on the input shaft for forming an airtight condition between the input shaft and the disk. The disk has at least two bores defined therein and longitudinally communicating with the cavity for operator to easily detach and replace the oil seal by using a tool extending through the at least two bores. A diameter of the through hole in the disk is slightly greater than that of the input shaft and the diameter difference between the through hole and the input shaft is ranged from 0.05 mm to 0.2 mm.
Abstract translation: 手动旋转泵的前盖包括具有偏心地限定在其中的用于气密地接收油封的盘的盘。 通孔限定在空腔的底部，以允许转子的输入轴延伸通过盘。 油封密封地密封在输入轴上，用于在输入轴和盘之间形成气密状态。 盘具有限定在其中的至少两个孔，并且与腔体纵向连通以使操作者能够通过使用延伸穿过至少两个孔的工具容易地分离和更换油封。 盘中的通孔的直径略大于输入轴的直径，并且通孔和输入轴之间的直径差为0.05mm至0.2mm。
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公开(公告)号：US4285643A
公开(公告)日：1981-08-25
申请号：US029019
申请日：1979-04-12
Applicant: Harvey C. White
Inventor： Harvey C. White
CPC classification number: F04C2/104 , F01C19/125 , F01C21/003 , F04C2/106 , Y10T137/86662
Abstract: A rotary fluid pressure device is described as comprising a housing having fluid inlet and outlet openings and in the housing is a gerotor device having an external stator having internal teeth and a rotor within the stator having external teeth, one less in number than those on the stator. The rotor is eccentrically mounted with respect to the stator so that upon rotation of the rotor, the sealing engagement between the external and internal teeth forms expanding cells on one side of the line of eccentricity and forms contracting cells on the other side of the line. A drive shaft concentric with the rotor has a hollow end within the housing and a solid drive end outside of the housing. A wobble stick drivingly connects the rotor and the shaft and the wobble stick has a pivot point at its inner end connected by a rigid pivot pin with a central recess in the housing axially of the shaft which eliminates axial movement between the drive shaft and the rotor which would otherwise be caused by an uneven end formed by wear on the wobble stick. A manifold, fixed in the housing, provides a double balance pad diametrically opposite each of an inlet passage for conducting inlet fluid to each of the cells between the stator and rotor. Twelve shallow slots are hobbed over six angled holes conducting fluid to the expanding and contracting cells and over six radial holes leading to the balance pads, giving the required accuracy. A novel seal and thrust bearing structure, where the drive shaft exits from the housing, results in good concentricity of the seal carrier and a thrust bearing between the seal carrier and the adjacent end of the housing provides with a flow pumped by the bearing during rotation of the device, which results in a lower temperature on the seal and bearing.
Abstract translation: 旋转流体压力装置被描述为包括具有流体入口和出口开口的壳体，并且在壳体中是具有外部定子的齿轮转子装置，其具有内齿，并且定子内的转子具有外齿，数量少于 定子。 转子相对于定子偏心安装，使得在转子旋转时，外齿和内齿之间的密封接合在偏心线一侧形成扩张单元，并在该线的另一侧上形成收缩单元。 与转子同轴的驱动轴具有在壳体内的中空端，并且在壳体外部具有固体驱动端。 摇摆杆驱动地连接转子和轴，并且摇摆杆在其内端处具有枢转点，该枢轴点通过刚性枢轴销连接，在轴的轴向上具有中心凹部，其消除了驱动轴和转子之间的轴向运动 否则将由由摆动棒上的磨损形成的不均匀的端部引起。 固定在壳体中的歧管提供了两个直径相对的每个入口通道的双重平衡垫，用于将入口流体传导到定子和转子之间的每个单元。 十六个浅槽在六个成角度的孔中滚动，将流体传导到膨胀和收缩单元，以及六个径向孔，通向平衡垫，提供所需的精度。 一种新颖的密封和推力轴承结构，其中驱动轴从壳体离开，导致密封载体的良好的同心度，并且在密封载体和壳体的相邻端之间的推力轴承在旋转期间提供由轴承泵送的流动 的装置，这导致密封件和轴承的温度较低。
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Patent Agency Ranking
公开(公告)号：US09932829B2
公开(公告)日：2018-04-03
申请号：US14230149
申请日：2014-03-31
Applicant: Kobe Steel, Ltd.
Inventor： Noboru Tsuboi
CPC classification number: F01C21/02 , F01C1/02 , F01C1/16 , F01C19/125 , F01C21/04 , F04C2240/52
Abstract: In order to suppress the damage and the degradation in durability of a bearing of an expander, simplify the configuration of the expander, and reduce the manufacturing cost thereof, an expander of the present invention includes an expander rotor that is rotationally driven by an expanding force transmitted from vapor of a working medium introduced into an expansion chamber and a first bearing that supports a first rotation shaft of the expander rotor to a vapor inlet, a casing includes therein first bearing chambers that have a pressure lower than that of the vapor inlet and accommodate the first bearing, and a passage that leads lubricant to a low-pressure portion having a pressure lower than that of the first bearing chamber is connected to a position above the lowermost portion of the first bearing in the first bearing chamber.
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公开(公告)号：US08286608B2
公开(公告)日：2012-10-16
申请号：US12280153
申请日：2007-02-19
Applicant: Arnold Wagner
Inventor： Arnold Wagner
CPC classification number: F01C9/005 , F01C19/02 , F01C19/08 , F01C19/125 , F03C4/00
Abstract: A sealing system for oscillating-piston engines that include two oscillating pistons that revolve together in a spherical housing. The pistons perform reciprocating oscillating movements in opposite directions about an oscillation axis perpendicular to the axis of revolution for the pistons. Guide members are provided on the pistons and engage at least one guide groove formed in the housing. Sealing elements are disposed on or in the vicinity of all moving edges surrounding working chambers and prechambers for the engine. The sealing elements seal all the gap regions present between machine parts displaced relative to one another by revolving and/or oscillating movements and not in direct contact. Sealing elements prevent excessive penetration of lubricating fluid into inlet and outlet openings in the housing.
Abstract translation: 一种用于振动活塞发动机的密封系统，包括两个在球形壳体中一起旋转的振荡活塞。 活塞围绕垂直于活塞的旋转轴的摆动轴在相反方向上进行往复摆动运动。 引导构件设置在活塞上并且接合形成在壳体中的至少一个引导槽。 密封元件设置在发动机周围的工作室和预燃室周围的所有移动边缘上或附近。 密封元件密封通过旋转和/或振荡运动相对于彼此移位并且不直接接触的机械部件之间存在的所有间隙区域。 密封元件防止润滑流体过度渗透到壳体中的入口和出口。
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公开(公告)号：US20090285711A1
公开(公告)日：2009-11-19
申请号：US12440690
申请日：2008-07-17
Applicant: Masahiro Inagaki , Shinya Yamamoto , Makoto Yoshikawa , Yuya Izawa
Inventor： Masahiro Inagaki , Shinya Yamamoto , Makoto Yoshikawa , Yuya Izawa
IPC: F04C29/00
CPC classification number: F01C1/126 , F01C1/086 , F01C11/002 , F01C19/125 , F01C21/02 , F01C21/10 , F04C2230/60 , F04C2240/56
Abstract: A housing of a Roots pump is configured by joining a lower housing member and an upper housing member that are separable from each other. With the upper and lower housing members joined together, an upper accommodating portion and a lower accommodating portion form a front bearing accommodating portion and a rear bearing accommodating portion, which accommodate whole bearings, respectively. The Roots pump further includes bearing holders attached to the bearings and fixed to the lower housing member so that the bearings are received in the lower accommodating portion in a positioned state.
Abstract translation: 罗茨泵的壳体通过连接可彼此分离的下壳体构件和上壳体构件而构成。 在上壳体构件和下壳体连接在一起的情况下，上容纳部分和下容纳部分分别形成容纳整个轴承的前轴承容纳部分和后轴承容纳部分。 罗茨泵还包括附接到轴承并固定到下壳体构件的轴承座，使得轴承在定位状态下容纳在下容纳部分中。
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公开(公告)号：US3827837A
公开(公告)日：1974-08-06
申请号：US30992272
申请日：1972-11-27
Applicant: DAIMLER BENZ AG
CPC classification number: F01C19/125
Abstract: A hot-gas engine constructed as rotary piston engine of trochoidal type which includes a piston supported on an eccentric of an eccentric shaft which together with a housing casing and with lateral housing parts arranged on both sides of the housing casing forms working chambers for the working medium; the eccentric space is thereby filled with the working medium under pressure while the ecentric shaft is sealed off on the outside of the bearing support by a labyrinth seal and a liquid seal.
Abstract translation: 一种构成摆线式旋转活塞式发动机的热燃气发动机，其包括支撑在偏心轴的偏心轴上的活塞，该活塞与壳体壳体以及布置在壳体壳体两侧的侧向壳体部件一起形成用于工作的工作室 中; 偏心空间由于在压力下被填充工作介质，同时通过迷宫式密封件和液体密封件将轴向支承件外侧的偏心轴密封。
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公开(公告)号：US3716245A
公开(公告)日：1973-02-13
申请号：US3716245D
申请日：1970-03-04
Applicant: TUROLLA M
Inventor： TUROLLA M
CPC classification number: F01C19/125 , F16J15/166 , Y10S277/91
Abstract: In a ring seal for effecting a seal between two opposed sealing faces, which may be plane or curved faces, one of the sealing faces is provided with a groove the opening from which faces the other of the sealing faces. In the groove there are located an annular rubber-elastic sealing element which is compressively pre-loaded and a locating element made of a material harder than that of the sealing element. On compression of the sealing element to a predetermined degree above that of the pre-load the sealing element urges the locking element partly out of the groove to abut the sealing face opposite the opening from the groove.
Abstract translation: 在用于在两个相对的密封面（其可以是平面或曲面）之间进行密封的环形密封件中，一个密封面设置有开口的凹槽，面对着另一个密封面。 在凹槽中设置有压缩预加载的环形橡胶弹性密封元件和由比密封元件硬的材料制成的定位元件。 在将密封元件压缩至高于预加载的预定程度的情况下，密封元件将锁定元件部分地推出凹槽，以抵靠与凹槽相对的开口的密封面。
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