| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | SCROLL COMPRESSOR | US13578248 | 2011-02-14 | US20120315173A1 | 2012-12-13 | Souichi Nakamura; Shuuichi Joumura; Kenji Nagahara; Hiroshi Kitaura |
| 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. | ||||||
| 82 | SCREW COMPRESSOR | US13378259 | 2010-06-04 | US20120100028A1 | 2012-04-26 | Norio Matsumoto; Nozomi Gotou; Shigeharu Shikano; Hideyuki Gotou; Harunori Miyamura |
| 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 chance an area of an opening of the brass passage inner peripheral surface of the cylinder portion. An end face of the slide valve facing the by bypass passage is inclined along an extending direction of the helical grooves. | ||||||
| 83 | SCROLL COMPRESSOR | US13170364 | 2011-06-28 | US20110256010A1 | 2011-10-20 | Takayuki Kuwahara; Tetsuzou Ukai; Katsuhiro Fujita; Kazuhide Watanabe; Tomohisa Moro |
| A scroll compressor that suffers no decrease in compression performance due to leakage resulting from a twisting assembly error is provided. This scroll compressor includes a fixed scroll and an orbiting scroll, each including a spiral wrap protruding from an end plate and having the same tooth thickness (Tr) and the same base-circle radius (b) defining an involute surface. The fixed scroll and the orbiting scroll are offset from each other by an orbiting radius (ρ) and mesh such that the respective wraps face each other with a phase shift of 180°. The orbiting scroll revolves/orbits along a circular orbit with the orbiting radius (ρ) to compress a gas while a rotation-preventing mechanism prevents rotation of the orbiting scroll. | ||||||
| 84 | Scroll compressor having an allowable angle of rotation | US12442579 | 2008-02-04 | US08038421B2 | 2011-10-18 | Takayuki Kuwahara; Tetsuzou Ukai; Katsuhiro Fujita; Kazuhide Watanabe; Tomohisa Moro |
| A scroll compressor includes a fixed scroll and an orbiting scroll, each including a spiral wrap protruding from an end plate and having the same tooth thickness (Tr) and the same base-circle radius (b) defining an involute surface. The fixed scroll and the orbiting scroll are offset from each other by an orbiting radius (ρ) and mesh such that the respective wraps face each other with a phase shift of 180°. The orbiting scroll revolves/orbits along a circular orbit with the orbiting radius (ρ) to compress a gas while a rotation-preventing mechanism prevents rotation of the orbiting scroll. The relationship between the involute surfaces of the spiral wraps of the two scrolls and the dimensions, dimensional tolerance, and assembly standards of the rotation-preventing mechanism are determined so that the median value of an allowable angle of rotation (φ) agrees with an upright position of the orbiting scroll. | ||||||
| 85 | SINGLE SCREW COMPRESSOR | US12672196 | 2008-08-07 | US20110070117A1 | 2011-03-24 | Harunori Miyamura; Tadashi Okada; Takayuki Takahashi; Kaname Ohtsuka; Toshihiro Susa; Hiromichi Ueno; Takanori Murono |
| In a single screw compressor, gates (51) of gate rotors (50) are to be engaged with spiral grooves (41) of a screw rotor (40). In each spiral groove (41) of the screw rotor (40), an area extending from a start point of the spiral groove (41) to a position in a compression stroke is a suction-side portion (45), and the remaining portion (portion up to a terminal point of the spiral groove (41)) is a discharge-side portion (46). In the discharge-side portion (46), a clearance between a wall surface (42, 43, 44) therein and the gate (51) is substantially “0 (zero).” A clearance between the wall surface (42, 43, 44) in the suction-side portion (45) and the gate (51) is wider than that between the wall surface (42, 43, 44) in the discharge-side portion (46) and the gate (51), and is gradually narrowed from the start point toward the terminal point in the spiral groove (41). | ||||||
| 86 | SCREW COMPRESSOR | US12810598 | 2008-12-26 | US20100278678A1 | 2010-11-04 | Hideyuki Gotou; Nozomi Gotou; Hideki Fujiwara; Harunori Miyamura |
| A screw compressor includes a casing having a cylinder, a cylindrical-shaped screw rotor disposed in the cylinder, a gate rotor and a seal portion. The screw rotor has a plurality of spiral-shaped groove portions formed in an outer peripheral surface. The gate rotor has a plurality of tooth portions engaged with the groove portions of the screw rotor to define compression chambers on one side of the gate rotor. The tooth portions are formed at an outer peripheral surface of the gate rotor. The seal portion is disposed on a side of the gate rotor opposite to the one side where the compression chambers are defined. The seal portion is arranged to block a space between a neighboring pair of the tooth portions of the gate rotor. | ||||||
| 87 | SINGLE-SCREW COMPRESSOR | US12746136 | 2008-12-08 | US20100260637A1 | 2010-10-14 | Takanori Murono; Kaname Ohtsuka; Hiromichi Ueno |
| 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. | ||||||
| 88 | SCREW COMPRESSOR | US12808300 | 2008-12-17 | US20100260620A1 | 2010-10-14 | Harunori Miyamura; Mohammod Anwar Hossain; Masanori Masuda |
| A screw compressor includes a casing, a screw rotor disposed in a cylinder portion of the casing to define a compression chamber, and a capacity control slide valve. Fluid sucked into the compression chamber is compressed by rotation of the screw rotor. The slide valve is slidable along a rotation axis of the screw rotor and is opposed to an outer circumferential surface of the screw rotor. The slide valve includes a dynamic pressure generator formed on an opposed surface of the slide valve that is opposed to the screw rotor to generate a dynamic pressure using fluid in contact with the opposed surface of the slide valve. The slide valve is configured so that the dynamic pressure generated by the dynamic pressure generator avoids contact between the slide valve and the screw rotor. | ||||||
| 89 | Dry Pumps | US10578546 | 2004-11-04 | US20070196228A1 | 2007-08-23 | Clive Marcus Tunna; Allan McDiarmid; Mark Tomkins |
| A screw pump comprises a pair of rotors (92, 94) each carrying an external screw thread (96, 98), the pair of rotors being rotatably mounted in a stator (72) and arranged such that, in operation, the screw threads of the rotors intermesh as the rotors rotate in opposing directions. Means (100, 102) are provided for actively controlling the axial position of the rotors within the stator during use of the pump. | ||||||
| 90 | Electrochemical machining of scroll wraps | US26522 | 1993-03-04 | US5320505A | 1994-06-14 | Michael W. Misiak; John M. Bourg |
| A method and apparatus for electrochemically machine lapping a matched set of fixed and orbiting scroll members for use in a scroll compressor. The orbiting scroll member is orbited in a short stroke relative to the fixed scroll member while an electrolyte is pumped between the scroll wraps. An electric current is passed through the fixed and orbiting scroll wraps to thereby electrochemically machine away high profile areas on corresponding metal wear surfaces. During the machining process, the clearance spacing between the scrolls is tightly controlled to prevent contact between the scrolls. | ||||||
| 91 | Fluid compressing apparatus having bearing gap | US609433 | 1990-11-05 | US5092747A | 1992-03-03 | Yasumi Irino |
| 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. | ||||||
| 92 | 스크롤 압축기 | KR1020157024870 | 2014-02-11 | KR1020150133188A | 2015-11-27 | 모엔스벤자민; 스툽코엔 |
| 스크롤압축기(1)는정지형고정자스크롤(8) 및가동형회전자스크롤(16) 및회전자(6)를이동시키기위한구동부를갖고, 각각의위치에는, 회전자스크롤(16)과고정자스크롤(8) 사이에순시최소개구(29)를갖는장소가형성되고, 최소개구(29) 내의각각의높이(2)에는, 국부적인횡방향내부간극(S)이존재하고, 여기서고정자플랭크(10/11) 또는회전자플랭크(18, 19) 중적어도하나는, 회전자(6)가정지상태일때 각각의점에서 0이아닌초기국부적인고정자플랭크편차(ΔTi, ΔTu) 또는회전자플랭크편차(ΔRi, ΔRu), 및스크롤압축기의공칭작동중에그 절대값이더 작은대응순시최종국부적인고정자플랭크편차(ΔTi, ΔTu) 또는회전자플랭크편차(ΔRi, ΔRu)를갖는개조된플랭크섹션(37 내지 40)을포함한다. | ||||||
| 93 | 내접 기어 펌프 | KR1020147016715 | 2012-12-21 | KR1020140106581A | 2014-09-03 | 푹스알렉산더 |
| 본 발명은 내측 치형 링을 구비하는 내측 톱니 바퀴(22)와, 외측 치형 링을 구비하는 외측 톱니 바퀴(24)와, 상기 내측 톱니 바퀴(22)와 상기 외측 톱니 바퀴(24) 사이에 형성되고 유입 작업 챔버(30) 및 유출 작업 챔버(31)로 세분되는 작업 챔버(47)와, 유입 작업 챔버(30) 내부와 통하면서 이송될 유체를 상기 유입 작업 챔버(30) 내부로 도입하기 위한 유입 채널(28) 및 유출 작업 챔버(31)와 통하면서 이송될 유체를 상기 유출 작업 챔버(31)로부터 방출하기 위한 유출 채널(29)을 포함하는, 유체를 이송하기 위한 내접 기어 펌프에 관한 것으로서, 이때 상기 내측 톱니 바퀴와 상기 외측 톱니 바퀴(22, 24)의 톱니들(21)이 서로 맞물려서 상기 내측 톱니 바퀴(22) 또는 상기 외측 톱니 바퀴(24)가 구동되며, 상기 내측 톱니 바퀴(22)의 톱니(21) 및 상기 외측 톱니 바퀴(24)의 톱니( 21)는 각각 구동 플랭크(51) 및 이 구동 플랭크(51)에 마주 놓인 자유 플랭크(52)를 구비하고, 상기 내측 톱니 바퀴(22)의 구동 플랭크(51) 및 상기 외측 톱니 바퀴(24)의 구동 플랭크(51)는 구동된 톱니 바퀴(22, 24)로부터 구동되지 않은 톱니 바퀴(22, 24)로 토크를 전달하기 위하여 서로 위·아래로 겹쳐서 놓이며, 이 경우 상기 내측 톱니 바퀴(22)의 구동 플랭크(51)의 기하학적 구조 및 상기 외측 톱니 바퀴(24)의 구동 플랭크(51)의 기하학적 구조는 상기 내측 톱니 바퀴(22) 및 상기 외측 톱니 바퀴(24)의 2개 이상의 톱니(21)가 서로 위·아래로 겹쳐서 놓이고 팁 포인트(48)에서 상기 내측 톱니 바퀴(22)의 톱니(21)와 상기 외측 톱니 바퀴(24)의 톱니(21) 사이에 간격 또는 유격이 존재하도록 형성된다.
|
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| 94 | 오일 펌프 로터 | KR1020147001399 | 2012-12-13 | KR1020140102172A | 2014-08-21 | 시오타니아츠시; 니이즈마에이이치로 |
| (과제) 정음성의 향상과 용적 효율의 향상을 도모할 수 있는 오일 펌프 로터를 제공한다.
(해결 수단) 이너 로터의 기초원 (bi) 의 직경을 φbi, 제 1 외전원 (Di) 의 직경을 φDi, 제 1 내전원 (di) 의 직경을 φdi, 아우터 로터의 기초원 (bo) 의 직경을 φbo, 제 2 외전원 (Do) 의 직경을 φDo, 제 2 내전원 (do) 의 직경을 φdo, 이너 로터와 아우터 로터와 편심량을 e 로 할 때, φbi ＝ n·(φDi ＋ φdi), φbo ＝ (n ＋ 1)·(φDo ＋ φdo), 또 φDi ＋ φdi ＝ 2 e, 혹은 φDo ＋ φdo ＝ 2 e, 또한 φDo ＞ φDi, φdi ＞ φdo 를 만족하고, 이너 로터와 아우터 로터의 클리어런스를 t 로 할 때, φDi ＋ φdi ＝ 2 e 의 경우에는, 0.3 ≤ ((φDo ＋ φdo) － (φDi ＋ φdi))·(n ＋ 1)/t ≤ 0.6 또는, φDo ＋ φdo ＝ 2 e 의 경우에는, 0.3 ≤ ((φDo ＋ φdo) － (φDi ＋ φdi))·n/t ≤ 0.6 으로 한다. |
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| 95 | Gear pump and printing apparatus provided with same | US15671496 | 2017-08-08 | US10112406B2 | 2018-10-30 | Masaaki Ando; Noritaka Mitsuo; Norihiro Maruyama |
| 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 portions, 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. | ||||||
| 96 | Scroll compressor | US14766628 | 2014-02-11 | US10066623B2 | 2018-09-04 | Koen Stoop; Benjamin Moens |
| Scroll compressor with a stationary, stator scroll and a movable rotor scroll and a drive to move the rotor, whereby in each position places are formed with an instantaneous minimum opening between the rotor scroll and the stator scroll whereby at each height in a minimum opening there is a local transverse internal clearance (S), whereby at least one of the stator flanks or rotor flanks comprises an adapted flank section with an initial local stator flank deviation (ΔT0i, AT0u) or rotor flank deviation (ΔR0i/AR0u) that is different to zero at each point when the rotor is stationary, and during nominal operation of the scroll compressor corresponding instantaneous final local stator flank deviations (ΔTfi, ΔTfu) or rotor flank deviations (ΔRfi, ΔRfU) whose absolute values are smaller. | ||||||
| 97 | PUMP COMPRISING A PROXIMITY SENSOR | US15749884 | 2016-08-04 | US20180238328A1 | 2018-08-23 | Phillip North; Kanstantinos Karoulas; Benjamin Raymond Wooller; Alan Ernest Kinnaird Holbrook |
| A dry vacuum pump may include a stator which defines an internal chamber in which a rotor is rotationally mounted. A sensor is mounted to the stator and has an output connected to a processing circuit arranged to analyse the output of the sensor to determine the absolute distance between a point on the surface of the rotor and internal stator surface. The rotor to stator clearance can thus be accurately determined in real time during operation of the pump, so that the pump performance can be optimised over its serviceable life. | ||||||
| 98 | GEAR PUMP DEVICE | US15558675 | 2016-04-27 | US20180112662A1 | 2018-04-26 | Takashi HASHIBA; Naoki HAKAMADA; Takahiro NAGANUMA; Tomoaki KAWABATA |
| In the present invention, polishing lines 71f are connected to an outer circumferential high-pressure region, but are not connected to each area that is a low-pressure region. In this configuration, the polishing lines 71f are connected to the outer circumferential high-pressure region where there is high discharge pressure, so high-pressure brake fluid is introduced within the polishing lines 71f. Therefore, a pushback effect is obtained, wherein gear pumps 19 and 39 are pushed back on the basis of the high-pressure brake fluid pressure. Furthermore, the polishing lines 71f are connected to the outer circumferential high-pressure region but are not connected to each area that is a low-pressure region, so high-pressure can be maintained within the polishing lines 71f, and a reduction in the pushback effect can be prevented. Accordingly, a decrease in the loss torque reduction effect can be prevented, and the loss torque can be further reduced. | ||||||
| 99 | Scroll compressor | US14378844 | 2013-11-12 | US09435337B2 | 2016-09-06 | Atsushi Sakuda; Sadayuki Yamada; Takeshi Ogata; Yusuke Imai; Hidenobu Shintaku; Takashi Morimoto |
| A diameter of a main bearing member 12m is defined as Dm, a length thereof is defined as Lm, a diameter of the eccentric bearing member 11e is defined as De and a length thereof is defined as Le. A ratio (=Lm/Dm) of the length and the diameter of the main bearing member 12m and a ratio (=Le/De) of the length and the diameter of the eccentric bearing member 11e are set to Le/De≦Lm/Dm≦1. Therefore, contact at edge portions of both ends of the eccentric bearing member 11e does not occur, and it is possible to prevent contact at edge portions of both ends of the main bearing member 12m even if the main shaft 13m inclines, and to reduce a viscosity loss caused by oil 9a. Hence, the present invention provides a scroll compressor securing reliability of the bearing members 12m, 11e and 16s and having high efficiency. | ||||||
| 100 | SCROLL COMPRESSOR | US14766628 | 2014-02-11 | US20150369244A1 | 2015-12-24 | Koen STOOP; Benjamin MOENS |
| Scroll compressor with a stationary, stator scroll and a movable rotor scroll and a drive to move the rotor, whereby in each position places are formed with an instantaneous minimum opening between the rotor scroll and the stator scroll whereby at each height in a minimum opening there is a local transverse internal clearance (S), whereby at least one of the stator flanks or rotor flanks comprises an adapted flank section with an initial local stator flank deviation (ΔT0i, AT0u) or rotor flank deviation (ΔR0i/AR0u) that is different to zero at each point when the rotor is stationary, and during nominal operation of the scroll compressor corresponding instantaneous final local stator flank deviations (ΔTfi, ΔTfu) or rotor flank deviations (ΔRfi, ΔRfU) whose absolute values are smaller. | ||||||
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