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91. 发明授权

US5092747A Fluid compressing apparatus having bearing gap 失效
标题翻译：具有轴承差的流体压缩装置
公开(公告)号：US5092747A
公开(公告)日：1992-03-03
申请号：US609433
申请日：1990-11-05
申请人： Yasumi Irino
发明人： Yasumi Irino
IPC分类号： F04B39/00 , F01C21/02 , F04C29/00 , F04C29/02 , F16C17/02 , F16C33/10
CPC分类号： F01C21/02 , F04C29/0042 , F16C17/02 , F04C2240/54 , F04C2270/17 , Y10S417/902
摘要： A fluid compressing apparatus includes a casing, a compressing unit disposed in the casing, a motor-drive unit located in the casing for driving the compressing unit, and a bearing unit for rotatably supporting the rotational shaft of the motor-drive unit. The fluid compressing apparatus also includes a refrigerant of HFC-134a (CH.sub.2 FCF.sub.3) and a prescribed amount of polyglycol, as a lubricating oil, stored in the casing. The bearing unit and the rotational shaft satisfy the following relationship:C2.ltoreq.2.times.Sowherein C2 is a gap between the rotational shaft and the bearing unit in a radial direction, and So is a total surface roughness of the outer surface of the rotational shaft and the inner surface of the bearing unit.
摘要翻译：流体压缩装置（11）包括壳体（13），设置在壳体中的压缩单元（15），位于壳体内用于驱动压缩单元的马达驱动单元（17），以及轴承单元（21， 33），用于可旋转地支撑电动机构的旋转轴（23）。流体压缩装置还包括存储在壳体中的HFC-134a（CH 2 FCF 3）的制冷剂和规定量的作为润滑油的聚乙二醇。轴承单元和旋转轴满足以下关系：C2 <= 2×So其中C2是径向上的旋转轴和轴承单元之间的间隙，并且So是外径表面的总表面粗糙度旋转轴和轴承单元的内表面。

92. 发明授权

US09845804B2 Positive displacement pump assembly with movable end plate for rotor face clearance control 有权
公开(公告)号：US09845804B2
公开(公告)日：2017-12-19
申请号：US14398039
申请日：2013-04-29
申请人： EATON CORPORATION
发明人： Daniel R. Ouwenga , Brian T. Smith
IPC分类号： F01C19/08 , F01C19/10 , F04C15/06 , F04C27/00 , F04C18/16 , F01C21/10 , F04C29/00
CPC分类号： F04C27/006 , F01C21/108 , F04C18/16 , F04C29/005 , F04C2240/52 , F04C2270/17
摘要： A positive displacement pump assembly includes a rotor housing defining a rotor cavity, and an end plate configured to at least partially close one end of the rotor cavity. Rotors are supported on and fixed to rotor shafts and extend through the rotor cavity. A first pair of bearings fixing the rotor shafts to the end plate. A second pair of bearings fixes the rotor shafts to the rotor housing, preventing relative axial movement between the rotor shafts and the rotor housing. The end plate is axially movable with the rotor shafts when the rotor shafts vary in axial length due to thermal fluctuations so that changes in an axial clearance at end faces of the rotors are reduced.

93. 发明申请

US20170334212A1 GEAR PUMP AND PRINTING APPARATUS PROVIDED WITH SAME 审中-公开
公开(公告)号：US20170334212A1
公开(公告)日：2017-11-23
申请号：US15671496
申请日：2017-08-08
申请人： SEIKO EPSON CORPORATION
发明人： Masaaki ANDO , Noritaka MITSUO , Norihiro MARUYAMA
IPC分类号： B41J2/175 , F04C2/08 , F01C21/02 , F01C21/10 , F04C2/14 , F04C13/00 , F04C15/06
CPC分类号： B41J2/17596 , B41J2/175 , B41J2/18 , B41J29/38 , F01C21/02 , F01C21/10 , F04C2/086 , F04C2/14 , F04C13/001 , F04C15/06 , F04C2210/205 , F04C2240/60 , F04C2270/17
摘要： A gear pump includes a pump casing and a gear assembly. The gear assembly includes a driving gear, a driven gear, a driving gear shaft, a driven gear shaft, and a bearing frame. The bearing frame includes a frame main body, a pair of driving side bearing portions, and a pair of driven side bearing portions. The frame main body has a pair of bearing support potions, in which the driving side bearing portion and the driven side bearing portion are provided, and a connecting portion which connects the bearing support portions. The bearing support portions and the connecting portion are integrated together as a one-piece member.

94. 发明授权

US09751321B2 Gear pump and printing apparatus provided with same 有权
公开(公告)号：US09751321B2
公开(公告)日：2017-09-05
申请号：US15095250
申请日：2016-04-11
申请人： SEIKO EPSON CORPORATION
发明人： Masaaki Ando , Noritaka Mitsuo , Norihiro Maruyama
IPC分类号： B41J2/175 , F04C13/00 , F04C15/06 , F04C2/14 , F01C21/02 , F01C21/10 , F04C2/08
CPC分类号： B41J2/17596 , B41J2/175 , B41J2/18 , B41J29/38 , F01C21/02 , F01C21/10 , F04C2/086 , F04C2/14 , F04C13/001 , F04C15/06 , F04C2210/205 , F04C2240/60 , F04C2270/17
摘要： A gear pump for transporting a fluid includes a pump casing; and a gear assembly which is accommodated in the pump casing. The gear assembly includes a driving gear, a driven gear that mashes with the driving gear, a driving gear shaft to which the driving gear is attached, a driven gear shaft to which the driven gear is attached, and a bearing frame that rotatably supports the driving gear shaft and rotatably supports the driven gear shaft.

95. 发明申请

US20160303864A1 GEAR PUMP AND PRINTING APPARATUS PROVIDED WITH SAME 有权
标题翻译：齿轮泵和印刷设备提供
公开(公告)号：US20160303864A1
公开(公告)日：2016-10-20
申请号：US15095250
申请日：2016-04-11
申请人： SEIKO EPSON CORPORATION
发明人： Masaaki ANDO , Noritaka MITSUO , Norihiro MARUYAMA
IPC分类号： B41J2/175 , F04C13/00 , F04C15/06 , F04C2/14
CPC分类号： B41J2/17596 , B41J2/175 , B41J2/18 , B41J29/38 , F01C21/02 , F01C21/10 , F04C2/086 , F04C2/14 , F04C13/001 , F04C15/06 , F04C2210/205 , F04C2240/60 , F04C2270/17
摘要： A gear pump for transporting a fluid includes a pump casing; and a gear assembly which is accommodated in the pump casing. The gear assembly includes a driving gear, a driven gear that mashes with the driving gear, a driving gear shaft to which the driving gear is attached, a driven gear shaft to which the driven gear is attached, and a bearing frame that rotatably supports the driving gear shaft and rotatably supports the driven gear shaft.
摘要翻译：用于运输流体的齿轮泵包括泵壳体; 以及容纳在泵壳体中的齿轮组件。齿轮组件包括驱动齿轮，与驱动齿轮相啮合的从动齿轮，安装有驱动齿轮的驱动齿轮轴，附带有从动齿轮的从动齿轮轴和可转动地支承驱动齿轮轴并可旋转地支撑从动齿轮轴。

96. 发明授权

US08956131B2 Scroll compressor 有权
标题翻译：涡旋压缩机
公开(公告)号：US08956131B2
公开(公告)日：2015-02-17
申请号：US13578248
申请日：2011-02-14
申请人： Souichi Nakamura , Shuuichi Joumura , Kenji Nagahara , Hiroshi Kitaura
发明人： Souichi Nakamura , Shuuichi Joumura , Kenji Nagahara , Hiroshi Kitaura
IPC分类号： F01C1/02 , F01C1/063 , F03C2/00 , F03C4/00 , F04C2/00 , F04C18/00 , F04C18/02 , F04C23/00 , F04C27/00 , F04C29/04 , F04C29/02
CPC分类号： F04C18/0215 , F04C18/0253 , F04C18/0276 , F04C23/008 , F04C27/005 , F04C29/026 , F04C29/042 , F04C2270/17
摘要： A scroll compressor includes a fixed scroll, an orbiting scroll and an injection passage. Each scroll has an end plate and a spiral lap. The scrolls mesh with each other to form a compression chamber. The injection passage supplies intermediate pressure refrigerant and refrigeration oil separated from discharged refrigerant to the compression chamber. At least one of the scrolls has a bottom land facing the lap of the other of the scrolls. The bottom land has an intermediate bottom region facing a part of the compression chamber communicating with the injection passage, and a suction side bottom region located closer to an outer end of the lap than the intermediate bottom region. A clearance between the suction side bottom region and the end face of the lap is larger than a clearance between the intermediate bottom region and the end face of the lap.
摘要翻译：涡旋压缩机包括固定涡旋件，绕动涡旋件和注射通道。每个涡卷有一个端板和一个螺旋圈。卷轴彼此啮合形成压缩室。喷射通道将从被排出的制冷剂分离的中压制冷剂和冷冻机油供给到压缩室。至少一个卷轴具有面向另一个卷轴的搭接部的底面。底面具有面向与注射通道连通的压缩室的一部分的中间底部区域和位于比中间底部区域更靠近卷边外端的吸力侧底部区域。吸力侧底部区域和搭接部的端面之间的间隙大于中间底部区域和搭接部的端面之间的间隙。

97. 发明授权

US08568119B2 Single screw compressor 有权
标题翻译：单螺杆压缩机
公开(公告)号：US08568119B2
公开(公告)日：2013-10-29
申请号：US12746136
申请日：2008-12-08
申请人： Takanori Murono , Kaname Ohtsuka , Hiromichi Ueno
发明人： Takanori Murono , Kaname Ohtsuka , Hiromichi Ueno
IPC分类号： F01C1/08
CPC分类号： F04C18/52 , F04C2270/17
摘要： A single-screw compressor includes a screw rotor including a spiral groove, a casing, and a gate rotor. The gate rotor includes a plurality of radial gates configured to mesh with the spiral groove. A clearance between one of the gates disposed in the spiral groove and a wall surface of a discharge side portion of the spiral groove is larger than a clearance between the gate disposed in the spiral groove and a wall surface of a suction side portion of the spiral groove. The wall surface of the discharge side portion of the spiral groove is a portion extending from a predetermined position of the spiral groove at a certain point in a compression phase to the terminal end of the spiral groove. The wall surface of the suction side portion of the spiral groove being a portion other than the discharge side portion.
摘要翻译：单螺杆压缩机包括螺旋转子，其包括螺旋槽，壳体和闸转子。门转子包括构造成与螺旋槽啮合的多个径向门。布置在螺旋槽中的一个门和螺旋槽的排放侧部分的壁面之间的间隙大于设置在螺旋槽中的门与螺旋形的吸入侧部分的壁面之间的间隙槽。螺旋槽的排出侧部的壁面是从螺旋槽的规定位置在压缩阶段的某一点向螺旋槽的末端延伸的部分。螺旋槽的吸入侧部的壁面是排出侧部以外的部分。

98. 发明授权

US08562319B2 Screw compressor having slide valve with inclined end face 有权
标题翻译：螺杆压缩机具有倾斜端面的滑阀
公开(公告)号：US08562319B2
公开(公告)日：2013-10-22
申请号：US13378259
申请日：2010-06-04
申请人： Norio Matsumoto , Nozomi Gotou , Shigeharu Shikano , Hideyuki Gotou , Harunori Miyamura
发明人： Norio Matsumoto , Nozomi Gotou , Shigeharu Shikano , Hideyuki Gotou , Harunori Miyamura
IPC分类号： F03C4/00 , F04C2/00 , F04C18/00
CPC分类号： F04C18/52 , F04C28/12 , F04C28/26 , F04C2270/17
摘要： A screw compressor includes a screw rotor, a casing, a low pressure space, a bypass passage and a slide valve. The screw rotor is provided with a plurality of helical grooves forming fluid chambers. The casing includes a cylinder portion with the screw rotor disposed in the cylinder portion. The low pressure space is formed in the casing to receive a flow of uncompressed, low pressure fluid. The bypass passage is opened in an inner peripheral surface of the cylinder portion to communicate the fluid chamber with the low pressure space. The slide valve is slideable in an axial direction of the screw rotor to change an area of an opening of the bypass passage in the inner peripheral surface of the cylinder portion. An end face of the slide valve facing the bypass passage is inclined along an extending direction of the helical grooves.
摘要翻译：螺杆式压缩机包括螺杆转子，壳体，低压空间，旁通通路和滑阀。螺杆转子设置有形成流体室的多个螺旋槽。壳体包括具有设置在气缸部分中的螺杆转子的气缸部分。在壳体中形成低压空间以接收未压缩的低压流体流。旁通通道在气缸部分的内周表面中打开，以将流体室与低压空间连通。滑阀能够在螺杆转子的轴向上滑动，以改变缸部的内周面中的旁通通路的开口面积。面向旁路通道的滑阀的端面沿螺旋槽的延伸方向倾斜。

99. 发明申请

US20130171018A1 SCREW COMPRESSOR 有权
标题翻译：螺旋压缩机
公开(公告)号：US20130171018A1
公开(公告)日：2013-07-04
申请号：US13820067
申请日：2011-09-29
申请人： Takashi Inoue , Masanori Masuda , Hiromichi Ueno , Mohammod Anwar Hossain , Akira Matsuoka
发明人： Takashi Inoue , Masanori Masuda , Hiromichi Ueno , Mohammod Anwar Hossain , Akira Matsuoka
IPC分类号： F04C18/00
CPC分类号： F04C18/00 , F04C18/16 , F04C18/52 , F04C28/12 , F04C2270/17
摘要： A screw compressor includes a casing having low and high pressure spaces, a screw rotor inserted in a cylinder part of the casing, and a slide valve disclosed in the cylinder part. The screw rotor has a plurality of helical grooves forming a compression chamber. The slide valve is moveable along an axis of the screw rotor and faces an outer periphery of the screw rotor to form a discharge port to communicating the compression chamber with the high pressure space. Fluid in the low pressure space is sucked into the compression chamber, compressed, and then discharged to the high-pressure space when the screw rotor rotates. The slide valve includes a sealing projection located on a back surface of the slide valve opposite to the screw rotor, and separating the low and high pressure spaces from each other when the sealing projection is in slidable contact with the casing.
摘要翻译：螺杆压缩机包括具有低压和高压空间的壳体，插入壳体的气缸部分中的螺杆转子和在气缸部分中公开的滑阀。螺杆转子具有形成压缩室的多个螺旋槽。滑阀可以沿着螺杆转子的轴线移动并且面向螺杆转子的外周，以形成将压缩室与高压空间连通的排出口。低压空间中的流体被吸入压缩室，压缩，然后当螺杆转子旋转时排出到高压空间。滑阀包括位于滑阀的与螺旋转子相对的后表面上的密封突起，并且当密封突起与壳体可滑动接触时，将低压空间与高压空间分开。

100. 发明申请

US20120315173A1 SCROLL COMPRESSOR 有权
标题翻译：滚动压缩机
公开(公告)号：US20120315173A1
公开(公告)日：2012-12-13
申请号：US13578248
申请日：2011-02-14
申请人： Souichi Nakamura , Shuuichi Joumura , Kenji Nagahara , Hiroshi Kitaura
发明人： Souichi Nakamura , Shuuichi Joumura , Kenji Nagahara , Hiroshi Kitaura
IPC分类号： F04C18/00
CPC分类号： F04C18/0215 , F04C18/0253 , F04C18/0276 , F04C23/008 , F04C27/005 , F04C29/026 , F04C29/042 , F04C2270/17
摘要： A scroll compressor includes a fixed scroll, an orbiting scroll and an injection passage. Each scroll has an end plate and a spiral lap. The scrolls mesh with each other to form a compression chamber. The injection passage supplies intermediate pressure refrigerant and refrigeration oil separated from discharged refrigerant to the compression chamber. At least one of the scrolls has a bottom land facing the lap of the other of the scrolls. The bottom land has an intermediate bottom region facing a part of the compression chamber communicating with the injection passage, and a suction side bottom region located closer to an outer end of the lap than the intermediate bottom region. A clearance between the suction side bottom region and the end face of the lap is larger than a clearance between the intermediate bottom region and the end face of the lap.
摘要翻译：涡旋压缩机包括固定涡旋件，绕动涡旋件和注射通道。每个涡卷有一个端板和一个螺旋圈。卷轴彼此啮合形成压缩室。喷射通道将从被排出的制冷剂分离的中压制冷剂和冷冻机油供给到压缩室。至少一个卷轴具有面向另一个卷轴的搭接部的底面。底面具有面向与注射通道连通的压缩室的一部分的中间底部区域和位于比中间底部区域更靠近卷边外端的吸力侧底部区域。吸力侧底部区域和搭接部的端面之间的间隙大于中间底部区域和搭接部的端面之间的间隙。

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