子分类：
- F04C18/02： .弧形啮合式的,即各配合元件具有圆弧形传送运动,每一元件都具有相同数量的齿或齿的等同物
- F04C18/08： .相互啮合式的,即具有与齿轮传动相似的配合元件的啮合
- F04C18/22： .内轴式,与其配合元件在相互啮合处具有同方向的运动,或其中的一个配合元件是固定的,内部元件比外部有更多的齿或齿的等同物
- F04C18/24： .反向啮合的,即配合元件在相互啮合处的运动方向相反
- F04C18/30： .具有F04C18/02,F04C18/08,F04C18/22,F04C18/24,F04C18/48各组中两组或多组所包含的特征,或具有这些组中的某一组所包含的特征,还具有配合元件之间的其他形式的运动特征
- F04C18/48： .与配合工作元件的运动轴线不平行的旋转活塞泵
| 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 | Compressor with sliding member resin layer | US13996767 | 2011-12-19 | US09243634B2 | 2016-01-26 | Takeo Hayashi; Yuuichi Yamamoto; Masahide Higuchi; Chihiro Endou |
| A compressor includes sliding members arranged to slide relative to each other when compressing a refrigerant. At least one of the sliding members has a resin layer that is formed on the whole area or a portion of at least one sliding surface. The resin layer has an arithmetic mean surface roughness (Ra) of 0.3 or more, or the whole area or a portion of an area opposed to the resin layer is entirely or partially harder than the resin layer and has an arithmetic mean surface roughness (Ra) of 0.3 or more. | ||||||
| 82 | Screw compressor with slide valve including a sealing projection | US13820067 | 2011-09-29 | US09200632B2 | 2015-12-01 | Takashi Inoue; Masanori Masuda; Hiromichi Ueno; Mohammod Anwar Hossain; Akira Matsuoka |
| 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. | ||||||
| 83 | Scroll compressor | US13778278 | 2013-02-27 | US09145889B2 | 2015-09-29 | Pilhwan Kim; Injong Jang |
| A scroll compressor is provided that may include a discharge cover that separates a suction space and a discharge space of an airtight container. The discharge cover may be inserted into a fixed scroll to be fixedly coupled thereto, reducing an amount of components, such as a gasket and fastening bolts required to fix the discharge cover, and an assembly time, reducing overall production costs. Also, as fastening bolts are not used, a width corresponding to a space for bolts may be reduced in the fixed scroll, whereby a phenomenon in which the fixed scroll is heated by a discharge refrigerant within the discharge space may be reduced, reducing suction loss of the refrigerant sucked into the compression chamber and improving compressor efficiency. Also, a size of the fixed scroll may be reduced, reducing a weight of the fixed scroll, and a weight of the overall compressor. | ||||||
| 84 | SCREW COMPRESSOR DRIVE CONTROL | US14532241 | 2014-11-04 | US20150052921A1 | 2015-02-26 | David M. Foye; Nathan T. West; Dennis M. Beekman; John R. Sauls |
| An embodiment of method used to control operation of a screw compressor of a refrigeration system may include receiving status signals regarding operation of the screw compressor of the refrigeration system. The method may further include determining an operating point of the screw compressor based upon the received status signals, and selecting a torque profile for the screw compressor based upon the operating point. The method may also include driving the screw compressor per the selected torque profile. Refrigeration systems and compressor systems suitable for implementing the method are also presented. | ||||||
| 85 | Scroll compressor with shaft inserting portion and manufacturing method thereof | US13733797 | 2013-01-03 | US08876503B2 | 2014-11-04 | Namkyu Cho; Cheolhwan Kim; Kangwook Lee; Byeongchul Lee |
| A scroll compressor having a rotational shaft insertion hole and a fabrication method thereof are provided. The scroll compressor includes a casing; a fixed scroll fixed to an inner wall surface of the casing; an orbiting scroll combined with the fixed scroll to form a compression chamber while performing an orbiting movement with respect to the fixed scroll; a rotational shaft having a shaft portion inserted into the fixed scroll, an eccentric portion that penetrates the fixed scroll to be combined with the orbiting scroll, and a neck portion having a diameter less than a diameter of the eccentric portion to connect the eccentric portion to the shaft portion, wherein the shaft portion, the eccentric portion, and the neck portion are integrally formed; a fixed bush interposed between the fixed scroll and the shaft portion; and a driving unit configured to drive the rotational shaft. A neck portion insertion hole, into which the neck portion is inserted, and a shaft portion insertion hole, into which the shaft portion is movably inserted in a transverse direction, are formed at the fixed scroll, and the fixed bush restricts a transverse directional movement of the shaft portion to maintain a state in which an outer circumferential portion of the neck portion insertion hole is inserted into the neck portion. | ||||||
| 86 | Vane-type Compressors and Expanders with Minimal Internal Energy Losses | US13562385 | 2012-07-31 | US20140037488A1 | 2014-02-06 | JOHN STEWART GLEN |
| Current piston based air-conditioning system compressors only have isentropic efficiencies near 50%. Making internal leakage and friction negligible, via detailed design of the vane machine, would almost halve power consumption. In addition, by recovering expansion energy that is normally wasted via an expander, the system Coefficient of Performance COP can be improved up to an additional 30%. | ||||||
| 87 | SLIDING VANE PUMP | US13990601 | 2011-11-30 | US20140030130A1 | 2014-01-30 | John Labbett; Neil Tindle; William Rawnsley, JR. |
| Disclosed herein is a sliding vane pump for providing positive displacement of a fluid such as water. The pump comprises a pump assembly having a housing with a fluid inlet and a fluid outlet formed therein, a lining member received in the housing and defining a substantially cylindrical inner surface and a rotor arranged inside the lining member to rotate about a rotational axis. The rotor defines a substantially cylindrical outer surface such that the inner surface of the lining member and the outer surface of the rotor define a working space therebetween, the working space having a radial cross-sectional area which varies about the rotational axis. The pump assembly also comprises a plurality of vanes received in substantially radial slots formed about the outer surface of the rotor. Each of the vanes is arranged to slide in the radial direction with respect to the rotor such that an outer edge of the vane contacts the inner surface of the lining member, thereby dividing the working space into working chambers. In use, rotation of the rotor draws the fluid from the fluid inlet into the working chambers and ejects the fluid from the working chambers into the fluid outlet. The vanes are formed of a carbon graphite or ceramic material and the rotor is formed of a ceramic material, which provides reduced thermal expansion compared to convention materials such as stainless steels. A base portion of each of the slots of the rotor is enlarged and has a rounded cross-sectional shape. The pump assembly further comprises a strainer assembly received into an opening in the housing and extending across the fluid inlet for filtering particulate matter from the fluid. The strainer assembly comprises a thermal sensor for sensing a temperature of fluid passing through the fluid inlet. | ||||||
| 88 | Compressor having capacity modulation or fluid injection systems | US12789105 | 2010-05-27 | US08616014B2 | 2013-12-31 | Robert C. Stover; Masao Akei; Michael M. Perevozchikov |
| A compressor may include first and second scroll members and first and second pistons. The first scroll member includes a first end plate and a first scroll wrap. The second scroll member includes a second end plate and a second scroll wrap that is intermeshed with the first scroll wrap to define moving fluid pockets. The second end plate may include a first and second passages, first and second recesses, and first and second ports extending through the second end plate and communicating with at least one of the pockets. The first piston may be disposed in the first recess and movable between first and second positions controlling communication between the first passage and the first port. The second piston may be disposed in the second recess and movable between first and second positions controlling communication between at least one of the pockets and said second passage. | ||||||
| 89 | COMPRESSOR | US13997738 | 2011-12-19 | US20130280117A1 | 2013-10-24 | Takeo Hayashi; Yuuichi Yamamoto; Masahide Higuchi; Chihiro Endou |
| A compressor includes a compression mechanism and a resin layer including a stack of three or more layers formed on a whole area or a portion of at least one surface of at least one part of the compression mechanism. A hardness of a layer most distant from a base in the resin layer is smaller than a hardness of a layer closest to the base in the resin layer. A difference in hardness between two adjacent layers in the resin layer is smaller than a difference in hardness between the layer most distant from the base and the layer closest to the base. | ||||||
| 90 | COMPRESSOR | US13996767 | 2011-12-19 | US20130280116A1 | 2013-10-24 | Takeo Hayashi; Yuuichi Yamamoto; Masahide Higuchi; Chihiro Endou |
| A compressor includes sliding members arranged to slide relative to each other when compressing a refrigerant. At least one of the sliding members has a resin layer that is formed on the whole area or a portion of at least one sliding surface. The resin layer has an arithmetic mean surface roughness (Ra) of 0.3 or more, or the whole area or a portion of an area opposed to the resin layer is entirely or partially harder than the resin layer and has an arithmetic mean surface roughness (Ra) of 0.3 or more. | ||||||
| 91 | SCROLL TYPE COMPRESSOR | US13845335 | 2013-03-18 | US20130259727A1 | 2013-10-03 | Akihiro Nakashima; Shinichi Sato; Akio Saiki |
| A scroll type compressor includes a housing, fixed and orbiting scroll members, a rotary shaft, a drive bushing, a plain bearing, a boss, a drive mechanism accommodation space and a compression chamber. The rotary shaft includes an eccentric pin on which the drive bushing is rotatably fitted. The boss is formed in the orbiting scroll member. The drive bushing is slidably inserted in the boss. In the drive mechanism accommodation space formed by the housing, the eccentric pin, the drive bushing and the bearing are disposed and upstream and downstream spaces are defined by the bearing. The compression chamber is formed by the fixed and the orbiting scroll members. A clearance is formed facing the sliding surface of the bearing. A communication passage is formed in the orbiting scroll member for communication between the compression chamber and the upstream space or the clearance and is opened toward the bearing. | ||||||
| 92 | MOTOR-DRIVEN COMPRESSOR | US13801424 | 2013-03-13 | US20130259726A1 | 2013-10-03 | Takuro YAMASHITA; Ken SUITOU; Kazuhiro KUROKI; Satoru EGAWA |
| A motor-driven compressor includes a back pressure region that pushes a movable scroll against a fixed scroll. The back pressure region is located at a side of the movable scroll located proximate to an opposing member. A defining portion, which is arranged on a movable end face, contact an opposing end face to define the back pressure region and a suction pressure region. The opposing member includes a communicating portion. An orbiting motion of the movable scroll moves the defining portion. This intermittently communicates the communicating portion with the back pressure region and the suction pressure region. | ||||||
| 93 | VACUUM PUMP | US13885054 | 2011-12-06 | US20130224055A1 | 2013-08-29 | Rudolf Bahnen; Uwe Drewes; Klaus Rofall; Markus Loebel |
| The invention relates to a vacuum pump, in particular a screw pump, having preferably two displacement body shafts (2, 3), coupled via a gearing, which drive displacement bodies (12, 13), and having an inner recess (14), extending in the direction of a geometric axis (A) of the displacement body shaft (2, 3), in which a tubular body (20) extends for conducting cooling fluid while leaving a free space between an inner surface of the recess (14) and an outer surface of the body (20). To provide a vacuum pump which has a configuration having a simple construction and which is effective with regard to cooling power, it is proposed that the body (20) is in addition secured in a separate cover part (15) mounted on the suction-side end of the displacement body (12, 13), and that the free space is formed, at least in part, directly between the body (20) and the inner surface of the displacement body (12, 13) and extends continuously from the cover part (15) to a securing region of the body (20) in the displacement body shaft (2, 3), in a region of the displacement body shaft (2, 3) associated with the motor/gearing housing (4) of the displacement body shaft (2, 3). | ||||||
| 94 | VARIABLE-SPEED SCROLL REFRIGERATION COMPRESSOR | US13715214 | 2012-12-14 | US20130156623A1 | 2013-06-20 | Patrice BONNEFOI; Feifei WANG |
| The compressor includes a sealed enclosure containing a compression stage, an electric motor having a stator and a rotor, an oil pump rotationally coupled to the rotor, including an oil inlet port connected to an oil sump, and control means arranged to command the operation of the motor in a start-up mode in which the rotor is rotated at a first speed of rotation included in a first speed range, and a normal operating mode in which the rotor is rotated at a second speed of rotation included in a second speed range higher than the first speed range. The compressor includes an oil injection device having an oil injection duct connected to a first oil outlet port of the oil pump and arranged to supply the compression stage with oil. | ||||||
| 95 | SCROLL COMPRESSOR | US13672846 | 2012-11-09 | US20130121865A1 | 2013-05-16 | Kitae Jang; Inho Won; Junchul Oh; Yanghee Cho; Byeongchul Lee |
| A scroll compressor is provided. The scroll compressor may include a communication hole formed in a fixed scroll for communicating a discharge space and a thrust bearing surface with each other. This may reduce frictional loss between the fixed scroll and an orbiting scroll. Further, if a high vacuum state is about to occur during operation of the compressor, refrigerant in the discharge space may be introduced into the compression chambers through the communication hole. This may prevent the occurrence of a high vacuum state to thereby prevent damage to the compressor. Additionally, when the compressor is stopped, a pressure equilibrium operation may be performed through the communication hole. | ||||||
| 96 | SCROLL COMPRESSOR | US13672838 | 2012-11-09 | US20130121864A1 | 2013-05-16 | Kitae JANG; Inho WON; Junchul OH; Yanghee CHO; Byeongchul LEE |
| A scroll compressor is provided. The scroll compressor may include a back pressure chamber formed between a wrap portion and a base portion of an orbiting scroll. A center of the back pressure chamber may be eccentric from a geometric center of the orbiting scroll along a line where a gas repulsive force is applied. Such a configuration may reduce/eliminate unstable behavior of the orbiting scroll, and frictional loss or abrasion between the orbiting scroll and various peripheral components may be reduced. This may enhance reliability and performance of the scroll compressor. | ||||||
| 97 | Methods, systems and apparatus for dynamically controlling an electric motor that drives an oil pump | US12577516 | 2009-10-12 | US08174222B2 | 2012-05-08 | Nitinkumar R. Patel; Yo Chan Son |
| Methods, system and apparatus are provided for sensorless control of a vector controlled motor drive system that includes an electric motor used to drive an auxiliary oil pump. | ||||||
| 98 | Gas transfer machine | US09633139 | 2000-08-04 | US06700273B1 | 2004-03-02 | Yoshinori Ojima; Toshiharu Nakazawa; Shinichi Sekiguchi; Nobuharu Noji |
| A gas transfer machine for use as a vacuum pump, for example, has a pump rotor mounted on a rotatable shaft for transferring a gas, and a reluctance-type motor for rotating the rotatable shaft. The reluctance-type motor has a stator, a motor rotor surrounded by the stator, and a shield member isolating the stator from the motor rotor. The motor rotor is directly coupled to the rotatable shaft and has a plurality of magnetic salient poles. | ||||||
| 99 | Screw compressor control means | US589021 | 1975-06-23 | US4042310A | 1977-08-16 | Hjalmar Schibbye; Arnold Englund |
| Volume control valve for a screw compressor located in a cylindrical bore parallel to and spaced from the working space. The bore and the working space communicate through a number of axially distributed channels which are selectively closed by an adjustable valve member disposed in the bore. | ||||||
| 100 | Screw compressor | US44021265 | 1965-03-16 | US3314597A | 1967-04-18 | BENEDICTUS SCHIBBYE LAURITZ |
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