| 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 | Rotary engine | US448100 | 1989-12-13 | US5121721A | 1992-06-16 | Yoshihiro Bando |
| A rotary engine that comprises a rotor having two side faces, a side housing disposed facing to one of the two side faces of the rotor and a center housing disposed facing to the other of the two side faces of the rotor. The side housing has an intake port formed therein. Also, the center housing has an intake port formed therein. The intake port of the center housing has an opening end which is dislocated from an opening end of the intake port formed in the side housing facing thereto to a retard side. A space is formed between the side face of the rotor and the center housing. And a relief hole is provided in the center housing in a dislocated portion of the opening end of the intake port of the center housing so as to escape a blow-bye gas pressure from the space. | ||||||
| 82 | Scroll-type fluid apparatus with radially compliant driving means | US195289 | 1980-10-08 | US4934910A | 1990-06-19 | Robert E. Utter |
| Fluid apparatus of the scroll-type are disclosed wherein radially compliant means effect relative orbital motion between first and second wrap elements such that actual moving line contact occurs between their flank surfaces, and wherein linkage means interconnect one of the wrap elements and crankshaft means such that a component of the force acting therebetween is imposed upon the wrap element in a radially outward direction in order to provide a sealing or contact force between the wrap elements. Counterweight means impose a force upon the wrap element in a radially inward direction which is substantially equal to the centrifugal force experienced thereby, whereby the contact force is made independent of the operating speed of the apparatus and self-compensating with respect to pressure conditions therein. | ||||||
| 83 | Waveform actuating air compressor | US310745 | 1989-02-14 | US4919601A | 1990-04-24 | Jong D. Kim |
| An air compressor having a tilting disc which is actuated in waveform. The tilting disc is adapted to abut mounting the disc on conical surfaces of side casings by an eccentric shaft, and is moved in waveform but not rotated against the rotation of the eccentric shaft so that the intake and exhaustion of air may be realized. | ||||||
| 84 | Outer envelope trochoidal rotary device having a rotor assembly having peripheral reliefs | US948126 | 1986-12-31 | US4721445A | 1988-01-26 | Ralph Hoffmann |
| A rotor assembly for an outer envelope trochoidal device. The rotor assembly has an outer peripheral surface that defines a trochoidal curve and includes at least one tapped hole on one lobe. The tapped hole includes an adjustable balancing member for balancing the rotor assembly. | ||||||
| 85 | Scroll type fluid apparatus with lubrication of rotation preventing mechanism and thrust bearing | US745227 | 1985-06-17 | US4637786A | 1987-01-20 | Yoshiaki Matoba; Hitoshi Ozawa |
| A scroll type fluid apparatus having a rotation preventing mechanism provided with a sliding member engageable with the outer surface of a bearing portion at an orbiting scroll and regulating the radial movement of the sliding member in reciprocating movement, and a sliding member holder engageable with the outer surface of the sliding member so as to regulate the movement of the sliding member in the direction perpendicular to the moving direction of the bearing portion. Spaces formed before and behind the sliding member in the sliding direction thereof are utilized as oil chambers respectively, whereby lubricating oil pumped-up from an oil pickup provided at a crankshaft is forcibly fed by the pump action caused by sliding motion of the sliding member onto the slidable contact surface of a thrust bearing supporting the orbiting scroll. | ||||||
| 86 | Scroll type positive displacement apparatus with tension rods secured between scrolls | US787319 | 1985-10-15 | US4610611A | 1986-09-09 | Edward S. Blain |
| Axial separation of the scrolls 10, 12 in a positive apparatus of the scroll type is resisted by provision of a elongated, tension rod 44. Hollow shafts 20, 24; 30, 32 coupled to the scrolls 10, 12 receive opposed ends 46, 48 of the rod 44 which are fixedly secured thereto in nonrotatable relation. The rod 44 extends through the interface 14 between the scrolls 10, 12 via apertures 26 and 40 and resists axial separating forces present at the interface 14. | ||||||
| 87 | Scroll type fluid displacement apparatus with centrifugal force balanceweight | US613418 | 1984-05-24 | US4597724A | 1986-07-01 | Tadashi Sato; Kiyoshi Terauchi |
| A scroll type fluid displacement apparatus is disclosed. The scroll type fluid displacement apparatus includes a housing, a fixed scroll and an orbiting scroll both of which having an end plate from which wrap extends. Both wraps interfit to make a plurality of line contacts to define at least one sealed off fluid pocket. A drive shaft is rotatably supported by the housing, and has a drive pin which is radially offset from the axis of the drive shaft. The end plate of orbiting scroll has a boss, and a bushing is rotatably supported within the boss. The bushing has an eccentric hole disposed eccentrically with respect to the center of the bushing, and the drive pin is inserted in the eccentric hole. The bushing also has a balanceweight which causes a centrifugal force which is slightly larger than the centrifugal force which arises by orbital motion of the orbiting scroll and other orbital parts to improve the wearing of the wrap in the high speed operation of the apparatus. | ||||||
| 88 | Drive bearing device for a fluid displacement apparatus | US433796 | 1982-10-12 | US4512729A | 1985-04-23 | Seiichi Sakamoto; Kiyoshi Terauchi |
| A fluid displacement apparatus is disclosed which includes a housing having a front end plate, a fixed fluid displacement member and an orbiting fluid displacement member. The fixed and orbiting members interfit to make a plurality of line contacts to define sealed off fluid pockets. A driving mechanism, including a drive shaft, is disposed within the housing and is connected to the orbiting member to effect orbital motion of the orbiting member upon rotation of the drive shaft. The drive shaft is rotatably supported by the front end plate through an angular bearing disposed within the front end plate. The pressure cone apex of the angular bearing coincides with the driving point of the orbiting member. A thrust race is disposed on one axial end surface of the angular bearing, and a ring plate is disposed within the front end plate facing the thrust race at a predetermined axial distance. A thrust bearing is placed in the axial gap between the thrust race and the ring plate to carry the thrust force from the angular bearing. | ||||||
| 89 | Rotary fluid pressure device | US284128 | 1981-07-16 | US4451217A | 1984-05-29 | Harvey C. White |
| 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. The wobble stick is selectably disengagable from drivingly connecting the rotor and the shaft through axial movement of 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. | ||||||
| 90 | Scroll-type fluid apparatus provided with means for counteracting a moment exerted on orbiting scroll member | US149991 | 1980-05-15 | US4384831A | 1983-05-24 | Masato Ikegawa; Masaya Imai; Kenji Tojo; Masao Shiibayashi |
| A scroll-type fluid apparatus including an orbiting scroll member, a stationary scroll member, and a plurality of pockets formed in at least one of the orbiting scroll member and the stationary scroll member to cooperate with the other scroll member for confining liquid therein. When an axially urging force is ecerted on the orbiting scroll member, a liquid pressure commensurate with the axially urging force is produced in the pockets, so that such liquid pressure cancels out a biased axially urging force (moment) exerted on the orbiting scroll member. | ||||||
| 91 | Rotary fluid pressure device | US029019 | 1979-04-12 | US4285643A | 1981-08-25 | Harvey C. White |
| 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. | ||||||
| 92 | Rotary screw machine with rotor thrust load balancing | US571472 | 1975-04-24 | US3947078A | 1976-03-30 | Oleif Olsaker |
| A bearing assembly for the rotors of a rotary screw variable volume gas machine, as a compressor expander or fluid pump, includes opposed thrust and high radial load bearings at the high pressure end of each rotor and high thrust bearings for each rotor shaft at the low pressure end. An axial force is applied to each of the bearings at the low pressure end, opposing the axial load on the screws from the working fluid, tending to equalize the thrust load on the bearings at the high pressure end so that bearing wear is relatively even and bearing life is improved. | ||||||
| 93 | Counterbalance for rotary engine | US35830773 | 1973-05-08 | US3876344A | 1975-04-08 | NESTOR LEONARD R |
| A counterbalance for a rotary engine, e.g. of the type described in application Ser. No. 203,211 now U.S. Pat. No. 3,744,941, includes a disc rotating about the drive shaft and within the rotor side wall opening, and a counterbalance weight suspended therefrom.
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| 94 | Positive displacement scroll apparatus with axially radially compliant scroll member | US40828773 | 1973-10-23 | US3874827A | 1975-04-01 | YOUNG NIELS O |
| A positive fluid displacement apparatus employing scroll members having interfitting spiroidal wraps angularly and radially offset such that as the spiral centers experience an orbiting motion, they define one or more moving fluid pockets of variable volume. The zones of lowest and highest pressures are connected to fluid ports. One of the scroll members is caused to orbit along a path which is rigidly defined with respect to the machine frame by bearings and mechanical elements. The other of the scroll members does not orbit except in yielding response to forces applied to it by the fluid being processed and by forces applied by the orbiting scroll member. This other scroll member therefore makes small radial and axial accommodating motions which effect axial and radial sealing through externally applied axial forces and internally generated radial forces. The small radial motions of the accommodating scroll member result in its performing a small orbit in response to the totality of forces acting upon it. Hence this scroll member may be said to perform a minor orbit of small dimensions and is referred to as the ''''accommodating scroll member.'''' The centrifugal force component produced by the orbiting of the one scroll and the motion of the other scroll is essentially all counterbalanced to leave the internally applied radial force as the primary radial sealing force. Fluid withdrawn from the zone of highest pressure is used as an axial sealing force. Coupling means are provided to maintain the desired angular relationship between the scroll members. The apparatus may serve as a compressor, expander or pump.
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| 95 | Compressors and expansion machines of the worm and pinion type | US34815973 | 1973-04-05 | US3841806A | 1974-10-15 | ZIMMERN B |
| A compressor or expansion machine for gases comprising a shaft which turns about an axis of rotation, a worm mounted on said shaft having threads disposed in a helix and forming projections, the crests of said threads being disposed on a surface of revolution about said axis, a stationary casing surrounding said worm at least partially and in substantially leak-tight contact with at least part of the crest line of said threads, at least one pinion provided with teeth which are disposed in meshing engagement with said threads and rotate about an axis which is transverse with respect to the axis of rotation of said shaft, that face of said teeth which is exposed to the high pressure being disposed on a surface of revolution about said transverse axis, at least one low-pressure port being disposed on one side of said worm whilst a high-pressure port is disposed on the opposite side in the immediate vicinity of said pinion, said worm being provided on the same side as the high-pressure port with an extension which is such that the periphery thereof is disposed on a surface of revolution about the axis of rotation of said shaft and which cooperates in substantially leak-tight manner with said casing, and characterized in that the zone of said casing which cooperates in substantially leak-tight manner with said extension has in the direction parallel to the axis of rotation of said worm a maximum width in the vicinity of said high-pressure port.
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| 96 | Force compensating means for fluid translating device | US3658446D | 1970-04-13 | US3658446A | 1972-04-25 | JANSSON BIRGER FREDRIK |
| A fluid translating device including a housing adjustably supporting a camblock which has a bore communicating with inlet and outlet ports formed in the housing. The bore has a rotor rotatably supported therein with the rotor having the vanes slidably supported in slots, the free ends of which engage the surface of the bore. The bore and rotor cooperate to define a sealing zone between the ports in a manner that the pressure of fluid is increased as it is transmitted between the ports. The fluid translating device incorporates force compensating means which counteract the forces developed by the pressured fluid on the camblock. The force compensating means includes plungers slidably supported in counterbores formed in the camblock and cooperating to define pressure cavities that are in communication with the sealing zone. Thus, pressured fluid is received from the sealing zone into the cavities and produces a counterbalancing force. Adjustable abutments extend from the housing and engage the free end of the plungers while the plunger is maintained in engagement with the abutments through springs located within the cavity.
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| 97 | Axial limit means for male and female spline teeth in a fluid pressure device | US3549283D | 1969-02-18 | US3549283A | 1970-12-22 | WOODLING GEORGE V |
| 98 | High pressure fluid seal with controlled leakage | US3495841D | 1964-05-25 | US3495841A | 1970-02-17 | LINDEBOOM HERMAN |
| 99 | Rotary fluid motors | US1246160 | 1960-03-02 | US3029794A | 1962-04-17 | RYSTROM CHARLES H |
| 100 | Gear pump or hydraulic gear motor with helical toothing provided with hydraulic system for axial thrust balance | US14401465 | 2014-05-20 | US09567999B2 | 2017-02-14 | Stefano Ferretti; Danilo Persici |
| A gear pump has a toothed driving wheel, a toothed driven wheel, a front flange from which a projecting portion of the shaft protrudes, being connected to the shaft of the driving wheel, a back lid fixed to the case, and an intermediate flange between the case and the front flange. The intermediate flange has first and second chambers connected by a connection duct to the inlet or outlet fluid duct of the pump. A compensating ring is mounted in the first chamber and inserted on the shaft of the driving wheel to compensate the axial forces of the driving wheel and transmit the motion on the shaft of the driving wheel. A piston is mounted in the second chamber in order to stop against one end of the shaft of the driven wheel, in such manner to compensate the axial forces imposed on the toothed driven wheel. | ||||||
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