| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | METHODS AND SYSTEMS FOR SEALING ROTATING EQUIPMENT SUCH AS EXPANDERS OR COMPRESSORS | US14891954 | 2014-05-20 | US20160146352A1 | 2016-05-26 | Victor JUCHYMENKO |
| A method and system is provided for pressure balancing one or more seals in machines such as expanders and/or compressors using the process fluid which is being expanded or compressed to provide the pressure for pressure balancing the other side of the one or more seals. The one or more seals may be part of a pressure containing chamber which may comprise a seal, a bearing and/or a gear on a rotating shaft common to the seal. An amount of pressure to be supplied to housing(s) for a machine so as to create a pressure cascade, and thereby dropping the pressure in each subsequent chamber as pressure approaches atmosphere. Pressure differentials may be directed to leak process fluid to the chamber into the process. Pressurized lube oil systems may be employed for balancing pressure and delivering lubricant to the seals, bearings and gears. | ||||||
| 102 | Pistonless rotary engine with multi-vane compressor and combustion disk | US13940858 | 2013-07-12 | US08978619B1 | 2015-03-17 | Arlen Dennis Purvis |
| Some embodiments provide a non-piston rotary engine that utilizes flywheel motion to generate power. In some embodiments, the non-piston rotary engine comprises a pair of flywheels and a plurality of rotor assemblies for generating mechanical energy. In some embodiments, each rotor assembly comprises a multi-vane compressor that rotates within a vane compressor housing. In some embodiments, each rotor assembly comprises a rotating combustion disk in a combustion housing. In some embodiments, the combustion housing comprises a plurality of combustion disk chambers for igniting the combustible gas and expelling exhaust fumes created after combustion, wherein combustible gas forced into each combustion disk chamber is combusted, causing the rotor to move in a direction to release exhaust from the combustion. | ||||||
| 103 | PUMP | US13805572 | 2011-05-19 | US20130089419A1 | 2013-04-11 | Clive Frederick Collie; Alan Ernest Kinnaird Holbrook; David Bedwell |
| The present invention relates to a pump (10) comprising a shaft (15) supported for rotation by a bearing (38) carried by a bearing carrier (48), said bearing carrier having a generally outer radial portion (52) which is fixed relative to a pump housing (12) and a generally inner radial portion (54) which is fixed relative to the bearing, wherein the carrier is stiff in a radial direction between said inner and outer portions and flexible in an axial direction for restraining radial movement of the bearing and allowing axial movement. | ||||||
| 104 | MULTI-ROTOR ROTARY ENGINE ARCHITECTURE | US13273777 | 2011-10-14 | US20130025565A1 | 2013-01-31 | Jean THOMASSIN; Richard Ullyott; André Julien |
| A multi-rotor internal combustion engine has a plurality of rotary internal combustion units axially distributed along an engine axis. Each unit has a rotor mounted on an eccentric portion of the shaft inside a housing. The housings of adjacent rotary internal combustion units have different angular positions about the engine axis so as to angularly offset the housing from adjacent housings, which may provide for a more uniform temperature distribution around the housings and may also or instead allow optimising of the balancing of pressure induced side loads on the shaft of the rotors. | ||||||
| 105 | Scroll machine having counterweights with changeable cavity | US12124554 | 2008-05-21 | US07934914B2 | 2011-05-03 | Keith J Reinhart; James A Schaefer; Eric P Cavender |
| A balancing system for different compressors utilizes a counterweight having a common exterior configuration. The mass of the counterweight is optimized for each compressor by changing the size of a recess located in the counterweight. In one embodiment, the recess is an arcuately shaped recess; and in another embodiment, the recess is a plurality of holes. | ||||||
| 106 | Pressure sealed tapered screw pump/motor | US11817036 | 2006-03-09 | US07828535B2 | 2010-11-09 | Alan Notis |
| A fluid pump (10) or motor (100) includes a pair of enmeshed tapered rotors (22,24,122,124) having intersecting axes of rotation. The first rotor (22,122) includes a small low pressure end (34,54,134,154) and a larger high pressure end (32,52,132,152) and a spiral thread (36,56,136,156) that increases in width and depth as it progresses from the high pressure end (28,128) to the low pressure end (26,126). The second rotor (24,124) enmeshes with the first rotor (22,122), and has an identical structure, except that its threads (36,56,136,156) progress in the opposite direction. Both rotors (22,24,122,124) are mounted on sliding splines (42,62,142,162) which permit them to move, to a limited extent, into and out of their respective receiving cavities. The pressure on the high side (28,128) of the pump (10) or motor (100) tends to urge the rotors (22,122,24,124) against the walls (16,20,116,120) of the receiving cavities thereby improving their sealing capabilities and the overall efficiency of the pump (10) or motor (100) as a whole. | ||||||
| 107 | Pressure Sealed Tapered Screw Pump/Motor | US11817036 | 2006-03-09 | US20080138230A1 | 2008-06-12 | Alan Notis |
| A fluid pump (10) or motor (100) includes a pair of enmeshed tapered rotors (22,24,122,124) having intersecting axes of rotation. The first rotor (22,122) includes a small low pressure end (34,54,134,154) and a larger high pressure end (32,52,132,152) and a spiral thread (36,56,136,156) that increases in width and depth as it progresses from the high pressure end (28,128) to the low pressure end (26,126). The second rotor (24,124) enmeshes with the first rotor (22,122), and has an identical structure, except that its threads (36,56,136,156) progress in the opposite direction. Both rotors (22,24,122,124) are mounted on sliding splines (42,62,142,162) which permit them to move, to a limited extent, into and out of their respective receiving cavities. The pressure on the high side (28,128) of the pump (10) or motor (100) tends to urge the rotors (22,122,24,124) against the walls (16,20,116,120) of the receiving cavities thereby improving their sealing capabilities and the overall efficiency of the pump (10) or motor (100) as a whole. | ||||||
| 108 | Scroll machine with axially compliant mounting | US11451645 | 2006-06-13 | US07322807B2 | 2008-01-29 | Harry Clendenin; Jonathan V Martinez; Keith Reinhart |
| A scroll compressor includes a compression mechanism contained within a shell. A non-orbiting scroll is supported for axial displacement relative the shell, and includes an end plate having a wrap extending therefrom and a flange having a bore extending therethrough. A guide member is axially fixed relative the shell and extends through the bore in the flange. A first portion of the guide member is disposed within and generally abuts a first circumferential portion of the bore. A second portion of the guide member is disposed within and generally spaced apart from a second circumferential portion of the bore. | ||||||
| 109 | Rotary positive displacement machine | US10501148 | 2003-01-17 | US07231894B2 | 2007-06-19 | Ronald William Driver |
| A rotary displacement machine includes a casing having a circular cylindrical internal surface and a rotor disposed in the chamber mounted to orbit about a chamber axis, with the rotor having a circular cylindrical external surface. A vane member is mounted on the casing and pivotable about a pivot axis parallel to the chamber axis. The vane member has a passage way communicating between the exterior of the casing and the operating chamber. A linkage connects the vane member to the rotor so as to keep a tip face of the vane member in sealing contact with an external surface of the rotor. | ||||||
| 110 | Scroll fluid machine | US11133565 | 2005-05-20 | US20050265879A1 | 2005-12-01 | Masaru Tsuchiya; Masatomo Tanuma; Ryusuke Muto; Yuki Takada |
| In a scroll fluid machine, an orbiting scroll is eccentrically revolved with respect to a stationary scroll so that fluid in a sealed chamber between the stationary and orbiting scrolls may be compressed toward a center. A first magnet is mounted on the stationary scroll and a second magnet is mounted on the orbiting scroll so that the same poles of the first and second scrolls may be opposite to each other thereby preventing the orbiting scroll from pressing the stationary scroll excessively. | ||||||
| 111 | Screw compressor-expander machine | US10513289 | 2003-04-30 | US20050223734A1 | 2005-10-13 | Ian Smith; Nikola Stosic; Ahmed Kovacevic |
| A plural screw compressor-expander machine has a casing (10) in the interior of which are mounted intermeshing helical rotors (11 and 12). The rotors (11 and 12) are supported at each end in bearings in the end walls of the casing. The interior of the casing is divided by a transverse partition (14) into a relatively longer compressor portion (1) and a shorter expander portion (5). The higher pressure ports (16, 18) of the compressor and expander portions are adjacent the partition, on opposite sides of a plane through the rotor axes. Similarly, the lower pressure ports (15, 17) are on opposite sides of the plane through the rotor axes but adjacent the end walls. This arrangement reduces the loads on the bearings of the rotors. | ||||||
| 112 | Rotary positive displacement machine | US10501148 | 2003-01-17 | US20050000214A1 | 2005-01-06 | Ronald Driver |
| A casing (1) with a circular cylindrical internal surface (3) delimits an operating chamber. A rotor (4) orbits about a chamber axis which is the axis of the internal surface (3). The rotor (4) has a circular cylindrical external surface (11), a generatrix of which is adjacent to the internal surface (3), a diametrically opposite genetrix being spaced from the internal surface (3). A vane member (17), mounted on the casing (1) and pivotable about a pivot axis parallel to the chamber axis, is accommodated in a fluid inlet/outlet aperture (18) in the casing, the vane member having a passageway (17a) communicating between the exterior of the casing and the operating chamber. The vane member (17) has an arcuate face (17b) coaxial with the pivot axis, end faces (17b) towards the pivot axis, end faces (17c) extending from the respective lateral ends of the arcuate face (17b) towards the pivot axis, and a tip face (17g) adjacent the rotor (4), these faces (17b, 17c, 17g) being sealing faces with respect to corresponding surfaces of the aperture (18) and the rotor (4). A linkage (28) connects the vane member (17) to the rotor (4) so as to keep the tip face (17g) in sealing contact with the external surface (11) of the rotor, the linkage being connected to the vane member by an articulation having an articulation axis (30) such that a plane containing the articulation axis (30) and the axis of the external surface (11) passes through the region of sealing contact. | ||||||
| 113 | Screw rotor machine having means for axially biasing at least one of the rotors | US10139107 | 2002-05-03 | US06551084B2 | 2003-04-22 | Mats Sundström |
| A helical screw rotor machine is provided which has at least one trunnion having an axial thrust surface located in a chamber filled with pressure medium and actuated axially by the pressure medium. A casing is closely fitted around the trunnion. The casing has an outer end which is connected to a bottom wall that includes a hole in its center, and the casing is rotatably and slidably mounted on the trunnion and is movable between a first axial position in which the bottom wall is spaced from an end wall of the chamber and a second axial position in which the bottom wall is in abutment with said end wall. A supply channel is connected to an opening in the end wall of the chamber opposite the hole in the bottom wall of the casing for controlled delivery of the pressure medium into the casing. | ||||||
| 114 | Oscillating motor | US09647259 | 2000-09-25 | US06429551B1 | 2002-08-06 | Stefan Beetz; Klaus Reichel |
| Known oscillating motors have inter alia starting difficulties resulting from the fact that the sliding seal ring is subject to pressures applied within said ring, even at a standstill. According to the invention, an oscillating motor is provided, comprising a sliding seal ring capable of axially sliding on a journal (8) of the output shaft (7) and which rests on an internal surface of the cover (4) with a sliding and sealing surface. Annular rings which are located on the cover side of the sliding seal ring (23) are connected through pressure compensation bores (34) and pressure compensation channels (38) to the side of the sliding seal ring (23) oriented towards the pressure chamber (13) or the discharge chamber (14). Static pressure in the housing (27) of the diagonal seal ring (28) and dynamic pressure in the pressure chambers (13) can thus be compensated. | ||||||
| 115 | Double-ended ceramic helical-rotor expander | US38421 | 1993-03-29 | US5393209A | 1995-02-28 | Peter B. Mohr; Wendell B. Myers |
| A ceramic helical rotor expander using a double-ended or tandem herringbone type rotor arrangement with bearing and seal assemblies remote from the hot gas inlets and especially capable of operating at an inlet temperature of above 1100.degree. C. The rotors are solid or hollow and bonded to hollow metal shafts, and mounted in a composite or simple prismatic casing. The rotors, casing and shafts are constructed from low expansivity materials. In the preferred embodiment the rotors are constructed of silicon nitride and the shafts constructed of an molybdenum alloy, with the metal shafts being supported in bearings and secured to synchronizing gears. The rotors and casing may be provided with coolant channels therein, and are constructed to eliminate the problem of end leakages at inlet temperature and pressure, and the need for high temperature bearings and seals. | ||||||
| 116 | Scroll type fluid machinery with counter weight on drive bushing | US939438 | 1992-09-04 | US5199862A | 1993-04-06 | Hiroaki Kondo; Takahisa Hirano |
| A scroll type fluid machinery has a stationary scroll and a revolving scroll in which spiral wraps are set up at end plates, and are engaged with each other. A drive bushing is fitted rotatably into a boss projected at the central part of the outer surface of the end plate of the revolving scroll, and a drive pin projecting from the rotary shaft is fitted slidably into a slide hole bored in the drive bushing. A counter weight which generates a centrifugal force having an opposite direction to a centrifugal force acting on the revolving scroll at the time of revolving motion in a solar motion thereof is provided on the drive bushing. Further, the contact pressure between the wrap of the revolving scroll and the wrap of the stationary scroll is prevented from becoming excessive even at the time of high speed rotation of the rotary shaft. | ||||||
| 117 | Method and apparatus for enhanced scroll stability in a co-rotational scroll | US688642 | 1991-04-19 | US5142885A | 1992-09-01 | Robert E. Utter; Daniel R. Crum |
| In a co-rotational scroll apparatus having two interleaving scroll wraps secured to end plates rotating about parallel, non-aligned axes to produce a relative orbital motion, a mass secured to at least one of the scrolls for enhancing the nutational stability of the scroll member. Preferably, the nutation reducing means includes a mass affixed to an end plate of the scroll member to induce a dynamic imbalance during rotation of the scroll member, creating a balancing or moderating moment sufficient to compensate for the moment induced by the varying pressure of the fluids in the various compression chambers during the rotation of the scroll member. | ||||||
| 118 | Scroll compressor with a fluid thrust bearing | US615009 | 1990-11-19 | US5133651A | 1992-07-28 | Tadayuki Onoda; Tatuhisa Taguchi |
| A thrust bearing of a scroll compressor to be used as a fluid compressor for a refrigeration or air conditioning unit, is designed to resist the moment exerted on the orbiting scroll member, and tending to tilt the orbiting scroll member, so as to prevent the clearance between a thrust surface and a surface of the orbiting scroll member slidingly supported thereon from being reduced or the surfaces from making local contact. The thrust bearing uses wedge shaped grooves having tip end portions in which fluid is compressed by the orbiting motion of the scroll member to generate dynamic pressure at one side of the compressor. This dynamic pressure maintains the clearance between the thrust surface and the surface of the orbiting scroll member thereby stabilizing the movement of the orbiting scroll member. | ||||||
| 119 | Scroll-type fluid machine with counter-weight | US610779 | 1990-11-08 | US5108274A | 1992-04-28 | Masayuki Kakuda; Yoshihisa Kitora; Toshihide Koda |
| A scroll-type fluid machine includes a fixed scroll having a spiral wall; an orbiting scroll having a base plate which is on one side provided with a spiral wall, the orbiting scroll having the spiral wall combined with the spiral wall of the fixed scroll. A rotation preventing mechanism prevents the orbiting scroll from rotating about its own axis. A driving shaft is driven by a driving source, which has an eccentric portion, the eccentric portion causing the orbiting scroll to carry out orbiting movement through an orbiting bearing. A counter-weight is coupled to the driving shaft in such manner that it takes an eccentric position at the side remote from the eccentric portion of the driving shaft and it has a play with respect to the driving shaft in a radial direction, which can balance with at least part of a centrifugal force caused at the orbiting scroll side, and which has radial movement controlled by the orbiting scroll side. | ||||||
| 120 | Gerotor motor and improved pressure balancing therefor | US380053 | 1989-07-14 | US4976594A | 1990-12-11 | Marvin L. Bernstrom |
| A rotary fluid pressure device is provided of the type including a housing portion (13), a gerotor gear set (15), and an endcap member (17). The gerotor gear set includes an internally-toothed ring member (19) and an externally-toothed star member (23) which orbits and rotates within the ring member. The star includes an end surface (24) disposed adjacent a stationary valve member (65), and another end surface (26) disposed adjacent the shaft housing. The star (23) defines high-pressure ports (93) and low-pressure ports (95) which engage in commutating fluid communication with valve passages (83) defined by the stationary valve member. The star (23) defines passages (101) and (103) which communicate with the fluid ports (93) and (95), respectively, and feed high pressure to a fluid chamber (113) having a transverse area (B). Seated against the stationary valve member (65), and disposed within the endcap (17) is a pair of O-ring seals (117) and (119) which cooperate with adjacent surfaces to define a pressurized region (121) which is in communication with whichever of the ports (37) or (39) is at higher pressure. The region (121) has a transverse area (A), the area (A) being equal to or greater than the area (B). Pressurized fluid in both the fluid chamber (113) and pressurized region (121) biases the star (23) into sealing engagement with the stationary valve plate (65) to prevent cross-port leakage, while at the same time, maintaining a sufficiently small end clearance between the end surface (26) of the star and the adjacent wear surface (111) to substantially eliminate leakage from the volume chambers to the case drain. | ||||||
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